JP5169811B2 - Air conditioner - Google Patents

Description

  The present invention relates to a winding device, an inverter device equipped with the winding device, and an air conditioner.

  Patent Document 1 below describes a transformer having a structure in which a transformer body is immersed in cooling oil. Specifically, a tank containing a transformer body, an oil feed pump, and a cooler are sequentially connected via a connection pipe. Thereby, cooling oil circulates between a tank and a cooler with a pump.

  This transformer is devised to prevent the conductor (winding conductor) that constitutes the winding of the transformer body from locally becoming high temperature, in other words, to make the temperature of the entire winding conductor uniform. ing.

  Specifically, a part or all of the winding conductor is formed of a hollow conductor. And the both ends of the hollow part are open | released in the tank, without connecting to the cooling oil inlet / outlet (a connection pipe is connected) of the tank. For this reason, the cooling oil enters the hollow portion of the winding conductor from the open end. The entering cooling oil moves in the hollow portion due to expansion in the high temperature portion.

  Thereby, the cooling oil in the high temperature part moves to the low temperature part to raise the temperature of the low temperature part, and the cooling oil in the low temperature part moves to the high temperature part to cool the high temperature part. As a result, the temperature of the entire winding conductor is made uniform.

  Patent Document 2 listed below compulsory by flowing a liquid refrigerant (refrigerant liquid) for a gas-insulated static inductor (transformer, reactor, etc.) having a structure in which a transformer body is housed in a tank filled with insulating gas. A cooling structure is described.

  Specifically, a cooling panel is disposed in the winding and a coolant liquid is allowed to flow through the cooling panel. The refrigerant liquid is sent to the cooling panel via an insulating hose by a pump outside the tank, and returns to the pump via the insulating hose and the cooler.

JP-A-10-64734 JP-A-5-166638

  In the transformer of Patent Document 1, as described above, both ends of the hollow conductor forming the winding conductor are opened without being connected to the cooling oil inlet / outlet of the tank. Therefore, the flow of the cooling oil in the hollow conductor is due to natural convection as described above, not the transport force of the pump. For this reason, the cooling oil that has entered the hollow conductor is useful for reducing the temperature difference between the high temperature part and the low temperature part, but exhibits a cooling capacity that can remove heat generated in the winding. I don't think so.

  In the gas insulated stationary inductor of Patent Document 2, the refrigerant inlet / outlet of the cooling panel is connected to the insulating hose as described above. For this reason, the potential of the cooling panel is considered to be in a floating state. The potential in the floating state may unexpectedly affect the winding drive. As a result, the operation of the apparatus becomes unstable.

  The various problems described above can occur in common in general winding devices having windings, regardless of whether a reactor, a transformer, or the like is distinguished.

  An object of the present invention is to provide a structure capable of removing heat generated in a winding (winding body) and preventing the potential of a cooling member from inadvertently affecting a winding device. .

  Moreover, an object of this invention is to provide the inverter apparatus and air conditioner which employ | adopted such a winding apparatus.

A first aspect of the air conditioner according to the present invention is a heat exchange system for an air conditioner using a refrigerant (730,760) an air conditioner provided with a (700, 701), a winding device (100-112 And the winding device is composed of a solid conducting wire (230), a winding body (232), and first and second lead wires (234, 238) continuing from the winding body, And a hollow conductor portion (300 to 308) that is electrically connected to the second lead-out wiring, and the hollow portion (200) having a winding portion (200), a tubular conductor (330, 360a to 360d), and the hollow A refrigerant supply unit (500 to 502) that is connected to the hollow part of the conductor part and supplies a refrigerant to the hollow part, and a third lead wiring (600) that is electrically connected to the hollow conductor part. The hollow conductor portion is A winding proximity portion (near the winding main body) disposed between the portion (338) to which the second lead wiring is connected and the portion (340) to which the third lead wiring is connected ( 332,350～357,362) have a, the coolant supply unit of the winding apparatus is configured by use of the heat exchange system for air conditioning, the refrigerant of the heat exchange system for air-conditioning is the Supplied to the hollow conductor .

A second aspect of the air conditioner according to the present invention is the air conditioner of the first aspect, the the winding device (100,102,107～109,111,112), proximate said winding The portion includes an inner surface proximity portion (332, 362) proximate to the inner surface (240) of the winding body.

A third aspect of the air conditioner according to the present invention, the first or an air conditioner of the second aspect, the the winding device (101,102,105～107), said winding proximal section Includes an outer surface proximity portion (350) proximate to the outer surface (242) of the winding body.

A fourth aspect of the air conditioner according to the present invention is the air conditioner according to any one of the first to third aspects , wherein the winding device (103 to 107, 110) has the winding. The proximity portion includes end surface proximity portions (352, 354) close to at least one end surface (244, 246) in the winding axis (231) direction of the winding body.

A fifth aspect of the air conditioner according to the present invention, the a first to fourth any one aspect of the air conditioner, for the winding device (100～107,109～112), wherein The winding proximity portion is a winding portion (332, 350, where the current flows in the same direction as the current that flows through the winding body when the tubular conductor is wound around the winding axis (231) of the winding body. 352, 354).

The 6th aspect of the air conditioner which concerns on this invention is an air conditioner of the said 5th aspect, Comprising: About the said winding apparatus (100-107, 109-112) , the said winding part is winding. It is pulled out tangentially.

A seventh aspect of the air conditioner according to the present invention is the air conditioner of the first to sixth any one aspect of the the winding device (100-112), said second lead wire And at least one of the third lead wiring is welded and electrically connected to the hollow conductor portion.

An eighth aspect of the air conditioner according to the present invention is the air conditioner of the first to sixth any one aspect of the the winding device (100-112), said second lead wire And at least one of the third lead wires is electrically connected to the hollow conductor portion via a conductive member (800, 810).

A ninth aspect of the air conditioner according to the present invention is the air conditioner according to the eighth aspect , wherein, in the winding device (100 to 112) , the conductive member partially includes the hollow conductor. And a single part (800) electrically connected to the second or third lead wiring in the other part.

A tenth aspect of an air conditioner according to the present invention is the air conditioner according to the eighth aspect , wherein, for the winding device (100 to 112) , the conductive member is electrically connected to the hollow conductor portion. Connected to the hollow conductor portion (811), the wiring terminal (812) electrically connected to the second or third lead wiring, the hollow conductor portion terminal, and the wiring terminal And a coupler (813) that couples the two in an electrically connected state.

According to the first aspect of the air conditioner of the present invention, since the hollow conductor portion through which the refrigerant flows is close to the winding body, the temperature rise of the winding body is suppressed. Moreover, since a refrigerant | coolant flows into a hollow conductor part compulsorily by a refrigerant | coolant supply part, high cooling performance is acquired. Therefore, even if the winding body generates heat, the winding device can be stably operated. Further, since the winding proximity portion is provided between the location where the second lead wiring is connected and the location where the third lead wiring is connected, the current flows through the winding body, A floating potential state in a winding proximity portion that is a portion close to the main body is avoided. Therefore, it is possible to prevent the unexpected influence due to the potential in the floating state and to operate the winding device stably. In addition, according to the electrical connection mode described above, it is not necessary to draw out the wiring for controlling the potential of the hollow conductor portion separately from the input / output wiring to the winding body. Therefore, the structure of the winding device can be simplified, and the wiring work during installation can be reduced.
Moreover, according to the 1st aspect of the air conditioner which concerns on this invention, since the heat exchange system for air conditioning is utilized (it combines) as a refrigerant | coolant supply part of a winding apparatus, the number of parts of an air conditioner is suppressed. be able to. Therefore, for example, the size of the air conditioner can be reduced.

According to the 2nd aspect of the air conditioner which concerns on this invention, the side (center hole side) of the inner surface in which heat dissipation is generally low can be cooled. For this reason, a high cooling effect is acquired.

According to the third aspect of the air conditioner of the present invention, since the winding proximity portion is located outside the winding body, the tubular conductor can be easily pulled out from the winding proximity portion. Moreover, since it is possible to provide a winding proximity portion with respect to an area larger than the inner side surface, a high cooling effect can be obtained.

According to the 4th aspect of the air conditioner which concerns on this invention, since a coil | winding proximity | contact part is located in the outer side of a coil | winding main body, a tubular conductor can be easily pulled out from a coil | winding proximity | contact part.

According to the 5th aspect of the air conditioner which concerns on this invention, the stronger magnetic field which added the magnetic field which generate | occur | produces in the winding part of a hollow conductor part to the magnetic field (magnetic flux) which a winding main body forms can be obtained. .

According to the sixth aspect of the air conditioner of the present invention, the tubular conductor can be easily pulled out without requiring a complicated bending process or the like.

According to the seventh aspect of the air conditioner of the present invention, the hollow conductor portion and the lead-out wiring can be electrically connected without increasing the number of parts. Moreover, the electrical connection location can be small.

According to the eighth aspect of the air conditioner of the present invention, the use of the conductive member increases the degree of freedom in selecting the position and method of electrical connection between the hollow conductor portion and the lead wiring. For this reason, the suitable structure according to manufacturing equipment etc. can be provided.

According to the ninth aspect of the air conditioner of the present invention, since the conductive member is composed of a single component, the number of components and the number of manufacturing processes can be suppressed even when the conductive member is used. Can provide a simple structure.

According to the tenth aspect of the air conditioner of the present invention, the hollow conductor portion, the winding portion, or the third lead wiring can be easily exchanged by attaching and detaching the coupling tool.

  FIG. 1 is a schematic diagram outlining a winding device 100 according to an embodiment of the present invention. 2 and 3 show an exploded perspective view and a sectional view of a part of the winding device 100. FIG. FIG. 4 shows a perspective view of a part of the winding device 100. FIG.

  A winding device 100 illustrated in FIG. 1 includes a winding part 200, a hollow conductor part 300, a core 400, and a refrigerant supply part 500. 2 and 3 exemplify a configuration in which the core 401 is employed instead of the core 400. Here, the case where the winding part 200 comprises a reactor is illustrated.

  The winding portion 200 includes a winding body (hereinafter also simply referred to as a winding) 232, a first lead wire 234, a connection terminal 236, and a second lead wire 238.

  The winding 232 is illustrated in a partially enlarged cross-sectional view along with a schematic cross-sectional view in FIG. 1, the outer shape is schematically illustrated in a two-dot chain line in FIG. 2, and the schematic cross-sectional view is illustrated in FIG. The

  The winding 232 is obtained by winding a solid conducting wire 230 in a layer around the winding shaft 231. The conducting wire 230 is wound over a range of a predetermined length along the winding shaft 231. The wound winding 232 as a whole has a hole (hereinafter referred to as a central hole) that extends along the winding shaft 231 and in which the winding shaft 231 is located. That is, the winding 232 has a cylindrical shape. Here, although a cylindrical shape is illustrated as an example of a cylindrical shape, it is not limited to this.

  The cylindrical winding 232 has an inner surface 240, an outer surface 242, and end surfaces 244 and 246 (see FIG. 3). The inner side surface 240 is a surface that circulates around the winding shaft 231 and is a surface that forms the wall surface of the central hole. The outer side surface 242 is a surface that circulates around the winding shaft 231 and is located farther from the inner side surface 240 in a direction orthogonal to the winding shaft 231 (hereinafter referred to as a winding radial direction). The end surfaces 244 and 246 are surfaces constituting one end and the other end of the cylindrical shape in the extending direction of the winding shaft 231 (hereinafter referred to as the winding shaft direction). One end surface 244 is grasped as a surface connecting the inner surface 240 and the outer surface 242 on one end side in the winding axis direction, and the other end surface 246 is formed on the other end side in the winding axis direction. It is grasped as a surface that connects to 242.

  The inner side surface 240 is also referred to as a winding inner side surface 240, and the outer side surface 242 is also referred to as a winding outer side surface 242. The end face 244 is also referred to as a winding upper end face 244, and the end face 246 is also referred to as a winding lower end face 246. The expressions “upper” and “lower” for the upper end surface 244 and the lower end surface 246 are used for the sake of convenience in accordance with the illustrated direction of the drawings. That is, the expression does not intend an absolute positional relationship determined based on the direction of gravity or the like.

  Here, the solid conducting wire 230 can be composed of a conducting wire having an insulating coating, and such a conducting wire with an insulating coating is generally available. In addition, illustration of insulating coating is abbreviate | omitted in the partially expanded sectional view in FIG. In the figure, the case where the solid conducting wire 230 is circular in cross section is illustrated, and the outer dimension is, for example, φ1.0 mm. However, the cross-sectional view shape, dimensions, and the like of the solid conducting wire 230 are not limited to such examples.

  In addition, the partially enlarged cross-sectional view in FIG. 1 illustrates the case where the solid conductor 230 is stacked in alignment in either the winding axis direction or the winding radial direction. The conductive wires 230 may be stacked in a stacked form, for example, a so-called stacked shape.

  The first lead wire 234 is a wire that continues electrically from one end of the winding body 232. The second lead wire 238 is a wire that continues electrically from the other end of the winding body 232. Each of the lead wires 234 and 238 can be configured by, for example, pulling out the solid conductive wire 230 constituting the winding body 232 from the winding body 232. Alternatively, for example, the lead wires 234 and 238 may be prepared as solid conductors separate from the winding body 232 and connected to the winding body 232.

  In the example of FIG. 1, a connection terminal 236 is provided on the first lead wiring 234. The connection terminal 236 can be used as an external connection terminal of the winding device 100, for example.

  The hollow conductor 300 has a winding proximity portion 332 and lead portions 334 and 336. Each portion 332, 334, 336 is constituted by a tubular conductor 330.

  The tubular conductor 330 can be composed of a tubular conductor having an insulating coating, such as a copper tube or an aluminum tube. The tubular conductor with an insulating coating is available as a tubular conductor pre-coated with an insulating coating. Alternatively, the tubular conductor with an insulating coating may be manufactured by obtaining an uncoated tubular conductor and forming an insulating coating. In addition, illustration of insulating coating is abbreviate | omitted in the partially expanded sectional view in FIG.

  Here, the case where the tubular conductor 330 is circular in cross section is illustrated, and the outer dimension is, for example, φ5.0 mm. However, the cross-sectional view shape, dimensions, and the like of the tubular conductor 330 are not limited to such examples. Although the case where the tubular conductor 330 is thicker than the solid conductor 230 is illustrated here, the present invention is not limited to this example.

  The winding proximity portion 332 is inserted into the central hole of the winding 232. More specifically, between the core 400 (see FIG. 1) or the leg 434 (see FIG. 2) of the core 401 inserted in the center hole of the winding 232 and the winding inner surface 240, the winding proximity A portion 332 is disposed.

  At this time, the winding proximity portion 332 is close to the winding inner surface 240. In view of this point, the winding proximity portion 332 is also referred to as an inner surface proximity portion 332. The proximity arrangement of the inner surface proximity portion 332 and the winding inner surface 240 may be such that the inner surface proximity portion 332 is in contact with the winding inner surface 240 as illustrated in FIGS. Alternatively, both 332 and 240 may be in a non-contact state.

  The winding proximity portion 332 is configured by winding the tubular conductor 330 around the winding shaft 231 in the center hole of the winding 232. In view of this point, the winding proximity portion 332 is also referred to as a winding portion 322. The winding portion 332 illustrated in FIGS. 1 to 3 is formed by winding a tubular conductor 330 in a spiral shape along the winding axis direction, and is formed of a single layer wound body.

  FIG. 1 illustrates a case where each turn of the tubular conductor 330 does not contact in the winding axis direction. On the other hand, FIGS. 2 and 3 exemplify a case where the tubular conductor 330 is wound more densely than the example of FIG. 1, particularly a case where adjacent turns of the tubular conductor 330 contact in the winding axis direction. doing.

  Regarding the length of the winding portion 322 and the winding 232 (the dimension along the winding axis direction), the winding proximity portion 322 is longer than the winding 232 in the example of FIG. The line proximity portion 322 is shorter, and both 322 and 232 have the same length in the example of FIG.

  The lead portion 334 is a piping portion that continues from one end of the winding proximity portion 332 and communicates with the winding proximity portion 332. The lead portion 336 is a piping portion that continues from the other end of the winding proximity portion 332 and communicates with the winding proximity portion 332. Each of the lead portions 334 and 336 can be configured by, for example, pulling out the tubular conductor 330 constituting the winding proximity portion 332 from the tubular conductor 330. Alternatively, for example, the lead portions 334 and 336 may be prepared as a tubular conductor separate from the winding proximity portion 332 and connected to the winding proximity portion 332.

  In the example of FIG. 1, the lead portions 334 and 336 are drawn from the winding portion 332 in the tangential direction of the winding (circulation) of the portion 332. That is, even if the winding portion 332 is inserted into the central hole of the winding 232, the winding portion 332 extends beyond the winding 232, so that the lead portions 334 and 336 are wound. It is possible to pull out in the tangential direction of 332.

  On the other hand, in the example of FIG. 2, the drawn portions 334 and 336 are drawn from the winding portion 332 in a direction orthogonal to the winding, in other words, along the winding axis direction.

  In addition, even if the winding portion 332 extends longer than the winding 232 as illustrated in FIG. 1, the lead portions 334 and 336 are pulled out along the winding axis direction as in the example of FIG. It is possible.

  Further, the lead portions 334 and 336 can be drawn in a direction intersecting at an angle other than a right angle with respect to the winding direction (circumferential direction) of the winding portion 332.

  It is also possible to pull out the two drawer portions 334 in different forms.

  Here, when the above-described drawing forms are compared, the drawing part 334 can be easily pulled out because the winding part 332 is drawn in the tangential direction of the winding because a complicated bending process is not required. Therefore, from this point of view, it is desirable that the winding portion 332 extends beyond the winding 232 in the winding axis direction.

  The core 400 illustrated in FIG. 1 has a bar shape. In addition, although the cross-sectional view perpendicular | vertical to the winding axis | shaft 231 of the core 400 is circular, for example, it is not limited to this. The core 400 is inserted into the winding portion 332 of the hollow conductor portion 300 (and thus inserted into the central hole of the winding 232), and extends along the winding axis direction. In other words, the winding part 332 and the winding body 232 are wound around the core 400.

  On the other hand, the core 401 illustrated in FIGS. 2 and 3 includes an I-type core 430 and an E-type core 432. The E-shaped core 432 includes a central leg 434, two side legs 436 that are located on both sides of the central leg 434 and extend in parallel to the central leg 434, and one end of the three legs 434, 436, and 436. And a connecting portion 438 that is connected. An I-type core 430 is placed on the other end of the three legs 434, 436, 436 of the E-type core 432. FIG. 2 shows a state where the cores 430 and 432 are separated from each other for explanation. In addition, the shape of the cores 430 and 432 is not limited to the illustration of FIG.

  In the case of the core 401 shown in FIGS. 2 and 3, the winding body 232 and the winding proximity portion 332 are inserted into the center leg 434 of the E-type core 432. In other words, the winding portion 332 and the winding body 232 are wound around the central leg 434, and the central leg 434 extends in parallel with the winding shaft 231 (see FIGS. 1 and 3).

  2 and 3, the center leg 434 of the E-type core 432 is in contact with the winding proximity portion 332. On the other hand, the central leg 434 and the winding proximity portion 332 can be brought into a non-contact state as in the arrangement form of the core 400 and the winding proximity portion 332 illustrated in FIG.

  2 and 3, the winding body 232 is in contact with the side legs 436 and the connecting portion 438 of the E-type core 432 and the I-type core 430, but the winding body 232 is not in contact with these. You may do it.

  The cores 400, 430, and 432 can be formed, for example, by compacting powders of various magnetic materials. Alternatively, for example, the cores 400, 430, and 432 can be formed by laminating flat plate members made of various magnetic materials.

  The refrigerant supply unit 500 is connected to the lead-out portions 334 and 336 of the hollow conductor portion 300, and allows the refrigerant to flow into the hollow portion of the hollow conductor portion 300, that is, into the tubular conductor 330 constituting the hollow conductor portion 300. . The refrigerant supply unit 500 illustrated in FIG. 1 includes pipe connection parts 530 and 532, pipes 534 and 536, and a refrigerant supply device 540.

  The pipe connection parts 530 and 532 constitute connection ports to which pipes outside the refrigerant supply part 500 are connected. The pipe connection parts 530 and 532 can be composed of various pipe joints, for example. In the example of FIG. 1, the lead portions 334 and 336 of the hollow conductor portion 300 are connected to the pipe connection portions 530 and 532, respectively. Further, the pipe connection portions 530 and 532 are connected to the refrigerant supply device 540 via the pipes 534 and 536.

  In the example of FIG. 1, the refrigerant supply device 540 includes a cooling unit 542, a pipe 544, and a pump 546.

  The cooling unit 542 can be configured by, for example, a radiator (radiator) or a radiator with a blower (fan). The cooling unit 542 is connected to the pipe connection unit 530 through the pipe 534 and is connected to the pump 546 through the pipe 544. The pump 546 is connected to the pipe connection portion 532 via the pipe 536.

  With such a connection form, the pipe connection part 530, the pipe 534, the cooling part 542, the pipe 544, the pump 546, the pipe 536, the pipe connection part 532, the lead-out part 336, the winding proximity part 332, The drawer portion 334 and the pipe connection portion 530 are sequentially connected in this order to form a series of refrigerant flow paths (here, circulation flow paths).

  Although the refrigerant flow path can be configured in a non-circulating form, the circulation flow path is economical because a predetermined amount of refrigerant is sufficient.

  The pump 546 may be provided so as to discharge the refrigerant to the pipe connection part 530 side through the cooling part 542, or conversely, may be provided to discharge the refrigerant to the pipe connection part 532 side. That is, the connection form of the refrigerant discharge port of the pump 546 determines which of the pipe connection portions 530 and 532 forms the refrigerant outlet.

  As the refrigerant, various known materials can be used, and either liquid or gas can be selected. For example, water, silicone oil, fluorocarbon, ammonia, carbon dioxide, etc. can be used as the refrigerant.

  Here, the second lead wiring 238 of the winding part 200 is electrically connected to the lead part 334 of the hollow conductor part 300.

  The winding device 100 also includes a third lead wiring 600 that is electrically connected to another lead portion 336 of the hollow conductor portion 300. The lead-out wiring 600 can be constituted by a solid conductive wire, for example. In the example of FIG. 1, a connection terminal 602 is provided on the lead-out wiring 600. The connection terminal 602 can be used as an external connection terminal of the winding device 100, for example.

  According to this, the connection terminal 236, the first lead wire 234, the winding body 232, the second lead wire 238, the lead portion 334, the winding proximity portion 332, the lead portion 336, and the third lead The wiring 600 and the connection terminal 602 are electrically connected sequentially in this order to form a current path. A drive current can be passed through the winding body 232 through the current path.

  It should be noted that the insulating coverings 238 and 334 are removed at the electrical connection portion 338 between the second lead wiring 238 and the lead portion 334. The same applies to the electrical connection portion 340 between the third lead wiring 600 and the lead portion 336.

  FIG. 4 illustrates a case where the second lead wiring 238 is wound around the lead portion 334 and welded to electrically connect the two wires 238 and 334 to each other. In FIG. 4, a welded portion 338 that becomes the electrical connection portion 338 is schematically illustrated by a one-dot chain line. According to welding, electrical connection can be performed without increasing the number of parts, and the electrical connection location can be small. The electrical connection between the third lead-out wiring 600 and the lead-out portion 336 can be similarly performed.

  According to the winding device 100, the winding proximity portion 332 of the hollow conductor portion 300 through which the coolant flows is close to the winding 232, so that the temperature rise of the winding 232 is suppressed. In addition, since the coolant is forced to flow through the hollow conductor portion 300 by the coolant supply portion 500, high cooling performance can be obtained. Therefore, even if the winding 232 generates heat, the winding device 100 can be stably operated.

  In particular, in the winding apparatus 100, the winding proximity portion 332 is close to the winding inner surface 240, which generally has low heat dissipation. For this reason, a high cooling effect is acquired.

  Further, the winding proximity portion 332 is provided between the electrical connection portion 338 of the second lead wiring 238 and the electrical connection portion 340 of the third lead wiring 600. For this reason, when an electric current is passed from the outside between the connection terminals 236 and 602, an electrical floating state of the winding proximity portion 332 that is a portion close to the winding 232 is avoided. Therefore, it is possible to stably operate the winding device 100 by preventing unexpected influences due to the potential in the floating state, for example, the occurrence of unexpected magnetic fields.

  And according to said electrical connection form, the structure of the winding apparatus 100 is simple and can reduce the wiring work at the time of installation. This is because when the first and second lead wires 236 and 238 are used as the input / output wires to the winding 232, the potential of the hollow conductor portion 300 is controlled separately from the wires 236 and 238. Lead-out wiring is required. On the other hand, according to the electrical connection configuration in the winding device 100, the separate lead wiring for controlling the potential of the hollow conductor portion 300 is not necessary.

  Here, it is preferable that the pipe connection portions 530 and 532 are made of an insulating material, for example, a resin, and a refrigerant of the insulating material is used. This is because the refrigerant supply unit 500 is electrically insulated from the hollow conductor unit 300 and the current flowing through the hollow conductor unit 300 can be prevented from causing malfunction, failure, or the like of the refrigerant supply unit 540. At this time, the pipes 534 and 536 may be made of a conductive material or an insulating material.

  Further, the winding portion 332 and the lead-out wirings 238 and 600 are connected so that the current flowing in the winding portion 332 and the current flowing in the winding 232 flow in the same direction, that is, in a clockwise direction or a counterclockwise direction. Is preferred. As a result, a stronger magnetic field can be obtained by adding the magnetic field generated by the winding portion 332 to the magnetic field (magnetic flux) formed by the winding body 232.

  The formation process of the winding part 200, the formation process of the hollow conductor part 300, the electrical connection process of the second lead wiring 238, and the electrical connection process of the third lead wiring 600 can be performed in various orders. .

  For example, either the formation process of the winding part 200 and the formation process of the hollow conductor part 300 can be executed first, or both processes can be executed in parallel. Each of the electrical connection processes of the lead wirings 238 and 600 is performed after the previously formed winding part 200 and the hollow conductor part 300 are combined, that is, the hollow conductor part 300 is accommodated in the central hole of the winding 232. It can also be performed later. In addition, each of the electrical connection processes of the lead wirings 238 and 600 can be performed before combining the previously formed winding part 200 and the hollow conductor part 300.

  Further, for example, the solid conductor 230 is electrically connected to the previously formed hollow conductor 300, and the winding 200 is formed by winding the solid conductor 230 on the winding proximity portion 332. Also good. In addition, for example, the tubular conductor 330 is electrically connected to the previously formed winding portion 200, and the hollow conductor portion 300 is formed by winding the tubular conductor 330, and then the hollow conductor portion 300 is wound. You may store in the center hole of 232.

  Hereinafter, another example of the winding device according to the embodiment of the present invention will be described.

  5 and 6 are a perspective view and a cross-sectional view outlining the winding device 101, respectively. The winding device 101 has a configuration in which the hollow conductor portion 300 in the winding device 100 illustrated in FIGS. 1 to 4 is replaced with the hollow conductor portion 301 illustrated in FIGS.

  Although the case where the core 401 is applied is illustrated here, the core 400 illustrated in FIG. 1 can also be applied. This also applies to the winding device 102 and the like described later.

  The hollow conductor portion 301 has a winding proximity portion 350. The winding proximity portion 350 is disposed in proximity to the winding outer surface 242. In view of this point, the winding proximity portion 350 is also referred to as an outer surface proximity portion 350. The proximity arrangement of the outer side proximity portion 350 and the winding outer side surface 242 may be in a state where the two 350 and 242 are in contact with each other as illustrated in FIGS. May be in a non-contact state.

  The winding proximity portion 350 is configured by winding a tubular conductor 330 around a winding axis 231. In view of this point, the winding proximity portion 350 is also referred to as a winding portion 350. The winding portion 350 illustrated in FIGS. 5 and 6 is formed by winding a tubular conductor 350 in a spiral shape along the winding axis direction, and is formed of a single layer wound body.

  In the winding portion 350 illustrated in FIGS. 5 and 6, adjacent turns of the tubular conductor 330 are in contact with each other in the winding axis direction. On the other hand, each turn of the tubular conductor 330 can be brought into a non-contact state as in the winding portion 332 of FIG.

  5 illustrates a case where the winding proximity portion 350 is shorter in the winding axis direction than the winding 232, and FIG. 6 illustrates the winding proximity portion 350 and the winding 232 that are the same in the winding axis direction. The case of length is illustrated. On the other hand, for example, the winding proximity portion 350 can be made longer than the winding 232 in the same manner as illustrated in FIG.

  The hollow conductor portion 301 has lead portions 334 and 336 as in the case of the hollow conductor portion 300 illustrated in FIG. In the example of FIG. 5, the lead portions 334 and 336 are drawn from the winding portion 350 in the tangential direction of the winding, but the lead shapes of the lead portions 334 and 336 can be variously configured.

  The formation process of the hollow conductor 301, the formation process of the winding part 200, and the electrical connection process of the lead wires 238 and 600 are executed in various orders by applying the case of the winding device 100 described above. Is possible.

  According to the winding device 101, the same effect as that of the winding device 100 can be obtained.

  In particular, in the winding device 101, the winding proximity portion 350 is located outside the winding 232, so that it is easy to draw the tubular conductor 330 from the winding proximity portion 350, that is, to form the lead portions 334 and 336.

  Further, since the winding outer surface 242 is wider than the winding inner surface 240, the winding proximity portion 350 can be provided in a wider area. Thereby, a high cooling effect is obtained.

  FIG. 7 shows a cross-sectional view outlining the winding device 102. The winding device 102 has a configuration in which the hollow conductor portion 300 is replaced with the hollow conductor portion 302 illustrated in FIG. 7 in the winding device 100 illustrated in FIGS.

  The hollow conductor portion 302 has a winding proximity portion 351, and the portion 351 is composed of the inner side proximity portion 332 and the outer side proximity portion 350.

  In the hollow conductor portion 302, for example, lead portions 334 and 336 are provided in the inner surface proximity portion 332 and the outer surface proximity portion 350, respectively.

  In this case, the refrigerant supply unit 500 (see FIG. 1) includes units including the pipe connection parts 530 and 532, the pipes 534 and 536, and the refrigerant supply device 540 for the inner side proximity part 332 and the outer side proximity part 350. Two sets may be provided. That is, the refrigerant supply unit 500 may include a plurality of sets of the refrigerant supply devices 540 and the like.

  In addition, the lead portion 334 of the inner surface proximity portion 332 and the lead portion 334 of the outer surface proximity portion 350 are electrically connected in common to the second lead wiring 238 of the winding portion 200. For example, a wiring configuration in which the lead wiring 238 passes through one lead portion 334 to the other lead portion 334 is applicable. Alternatively, for example, the lead-out wiring 238 may be configured as a set of two wirings. More specifically, the wirings forming such a set have one end connected in common to the winding 232 and the other end connected to the lead portion 334, respectively.

  Similarly, the lead portion 336 of the inner side proximity portion 332 and the lead portion 336 of the outer side proximity portion 350 can be electrically connected to the third lead wiring 600 in common.

  Alternatively, each of the drawer portions 334 and 336 may have a manifold (manifold) structure. More specifically, one end of the inner surface proximity portion 332 and one end of the outer surface proximity portion 350 are merged by the manifold draw-out portion 334 and connected to the pipe connection portion 530 of the refrigerant supply unit 500 (see FIG. 1). is there. The same applies to the drawer portion 336.

  According to the lead-out portions 334 and 336 of the manifold, only one set of units including the pipe connecting portions 530 and 532, the pipes 534 and 536, and the refrigerant supply device 540 is sufficient as in the case of FIG. For this reason, the increase of the said unit, in other words, the increase in component cost and manufacturing cost can be suppressed.

  According to the leading portions 334 and 336 of the manifold, the inner surface proximity portion 332 and the outer surface proximity portion 350 are electrically connected. For this reason, by providing the electrical connection portions 338 and 340 (see FIG. 1) with the lead wires 238 and 600 in the lead portions 334 and 336, the placement of the lead wires 238 and 600 is the same as in FIG. Simplified. That is, it is not necessary to use a wiring group in which a plurality of wirings form a set as the lead wirings 238 and 600. For this reason, the increase in parts cost and manufacturing cost can be suppressed.

  Alternatively, in the configuration in which the lead portions 334 and 336 are provided for the inner surface proximity portion 332 and the outer surface proximity portion 350, as described above, the pipes 534 and 536 of the cooling unit 500 can be manifolded. According to this, although it is necessary to provide the pipe connection portions 530 and 532 for the inner surface proximity portion 332 and the outer surface proximity portion 350, the refrigerant supply device 540 can be shared by both portions 332 and 350. . Therefore, an increase in cost related to the refrigerant supply device 540 can be suppressed.

  Although the case where the inner surface proximity portion 332 and the outer surface proximity portion 350 constitute a parallel refrigerant flow path has been described above, both the portions 332 and 350 may be configured as a serial refrigerant flow path. In other words, the drawer portion 334 or the drawer portion 336 of the inner surface proximity portion 332 and the drawer portion 334 or the drawer portion 336 of the outer surface proximity portion 350 are connected.

  In this case, the drawing portions 334 and 336 drawn to the same side in the winding axis direction are connected to each other, more specifically, the drawing portions 334 drawn to the I-type core 430 side or the E-type core 432. It is preferable to connect the drawn portions 336 drawn to the connecting portion 438 side. This is because complication of the tubular conductor 330 is prevented and a simple structure can be obtained.

  Here, the description will be given by taking as an example a configuration in which the drawer portions 334 are connected to each other, but the same description applies to other serial piping configurations.

  In such an example, the drawer portion 336 of the inner surface proximity portion 332 or the outer surface proximity portion 350 is connected to the pipe connection portion 530 of the refrigerant supply unit 500, and the other drawer portion 336 is connected to the pipe connection portion 532.

  Further, regarding the electrical connection with the lead wirings 238 and 600, the following forms are conceivable.

  For example, the two lead portions 336 are connected to the lead wires 238 and 600, respectively. At this time, the inner surface proximity portion 332 and the outer surface proximity portion 350 are also electrically connected in series.

  Alternatively, one of the lead wires 238 and 600 is connected to the connected lead portion 334, and the other of the lead wires 238 and 600 is commonly connected to two lead portions 336 that are not connected. At this time, the inner surface proximity portion 332 and the outer surface proximity portion 350 are electrically connected in parallel.

  Regardless of whether the electrical connection is in series or in parallel, the winding direction (clockwise or counterclockwise) of the tubular conductor 330 is appropriately selected for the inner surface proximity portion 332 and the outer surface proximity portion 350, respectively. Thus, the current flowing through the portions 332 and 350 and the current flowing through the winding body 232 can be in the same direction (clockwise or counterclockwise).

  The formation process of the hollow conductor 302, the formation process of the winding part 200, and the electrical connection process of the lead wires 238 and 600 are applied in various orders by applying the case of the winding device 100 and the like. It is feasible.

  Further, in the configuration in which the lead portions 334 and 336 are connected, the forming process of the hollow conductor portion 302 includes a forming process of the winding proximity parts 332 and 350 and a connecting process of both the parts 332 and 350. Can be executed in various orders. At this time, for example, the electrical connection process of the lead wirings 238 and 600 may be performed between the process of forming the winding proximity parts 332 and 350 and the connection process of the parts 332 and 350.

  According to the winding device 102, the same effects as those of the winding devices 100 and 101 can be obtained. In particular, since both the inner surface proximity portion 332 and the outer surface proximity portion 350 are provided, higher cooling efficiency can be obtained as compared with the winding devices 100 and 101 having only one of them.

  FIG. 8 shows a cross-sectional view outlining the winding device 103. The winding device 103 has a configuration in which the hollow conductor portion 300 is replaced with the hollow conductor portion 303 illustrated in FIG. 8 in the winding device 100 illustrated in FIGS.

  The hollow conductor portion 303 has a winding proximity portion 352. The winding proximity portion 352 is disposed in proximity to the winding upper end surface 244. In view of this point, the winding proximity portion 352 is also referred to as an end surface proximity portion 352 or an upper end surface proximity portion 352. The proximity arrangement of the upper end surface proximity portion 352 and the winding upper end surface 244 may be in a state where both 352 and 244 are in contact as illustrated in FIG. 8, or both 352 and 244 are in a non-contact state. It may be.

  The winding proximity portion 352 is configured by winding the tubular conductor 330 around the winding shaft 231. In view of this point, the winding proximity portion 352 is also referred to as a winding portion 352. The winding portion 352 illustrated in FIG. 8 is formed by winding the tubular conductor 330 in a spiral shape extending in the winding radial direction, and is formed of a winding body having three turns (three layers).

  FIG. 8 illustrates a case where adjacent turns of the tubular conductor 330 contact each other in the winding radial direction. On the other hand, each turn of the tubular conductor 330 can be brought into a non-contact state.

  FIG. 8 illustrates a case where the winding portion 352 has the same dimensions as the winding 232 in the winding radial direction. On the other hand, the winding winding portion 352 can be made larger or smaller than the winding 232 in the winding radial direction.

  Although the hollow conductor portion 303 is not shown in FIG. 8, the hollow conductor portion 303 also has the lead portions 334 and 336 (see FIGS. 1 and 2).

  The drawing portion 334 on the side close to the winding shaft 231, that is, the inner peripheral side (here, the drawing portion 334 is a drawing portion 336) is along the winding axis direction as in the example of FIG. 2. Can be considered. In addition, even the inner-drawing portion 334 can be drawn in the tangential direction of winding. For example, the tubular conductor 330 may be provided one more round while being shifted in the direction of the winding axis for the inner circumferential draw-out portion 334.

  The drawing portion 336 on the side far from the winding shaft 231, that is, on the outer peripheral side, is preferably drawn from the winding portion 352 in the tangential direction of the winding of the portion 352 as in the examples of FIGS. According to such a form, the drawer portion 334 can be easily pulled out without requiring a complicated bending process or the like. Of course, it is also possible to pull out along the winding axis direction as in the example of FIG.

  It is also possible to configure the winding device 103 by providing the winding proximity portion 352 on the winding lower end surface 246 side (see the winding proximity portion 354 of FIG. 9 described later).

  The formation process of the hollow conductor part 303, the formation process of the winding part 200, and the electrical connection process of the lead wires 238 and 600 are applied in various orders by applying the case of the winding device 100 or the like. It is feasible.

  According to the winding apparatus 103, the same effect as the above-described winding apparatus 100 and the like can be obtained. In particular, in the winding device 103, the winding proximity portion 352 is located outside the winding 232, so that it is easy to draw the tubular conductor 330 from the winding proximity portion 352, that is, to form the lead portions 334 and 336.

  FIG. 9 shows a cross-sectional view outlining the winding device 104. The winding device 104 has a configuration in which the hollow conductor portion 300 is replaced with the hollow conductor portion 304 illustrated in FIG. 9 in the winding device 100 illustrated in FIGS.

  The hollow conductor portion 304 has a winding proximity portion 353, and the portion 353 includes winding proximity portions 352 and 354. The winding proximity portion 352 is the same as described above (see FIG. 8). The winding proximity portion 354 is configured in the same manner as the winding proximity portion 352 except that the winding proximity portion 354 is arranged close to the winding lower end surface 246. Similar to the winding proximity portion 352, the winding proximity portion 354 is also referred to as an end surface proximity portion 354, a lower end surface proximity portion 354, or a winding portion 354.

  Although not shown in FIG. 9, the hollow conductor portion 304 also has the above-described lead portions 334 and 336 (see FIGS. 1 and 2).

  In the winding device 104, the lead portions 334 and 336, the lead wires 238 and 600, and the refrigerant supply unit 500 can be variously configured by applying the case of the winding device 102 (see FIG. 7). Further, the formation process of the hollow conductor 304, the formation process of the winding part 200, and the electrical connection process of the respective lead wires 238 and 600 can be applied variously by applying the case of the winding device 102 or the like. Can be executed in order.

  According to the winding device 104, the same effects as those of the winding device 100 and the like can be obtained. In particular, since both the upper end surface proximate portion 352 and the lower end surface proximate portion 354 are provided, higher cooling efficiency can be obtained as compared with the winding device 103 having only the upper end surface adjacent portion 352.

  FIG. 10 shows a cross-sectional view outlining the winding device 105. The winding device 105 has a configuration in which the hollow conductor portion 300 is replaced with the hollow conductor portion 305 illustrated in FIG. 10 in the winding device 100 illustrated in FIGS.

  The hollow conductor portion 305 has a winding proximity portion 355 and lead portions 334 and 336 (not shown) (see FIGS. 1 and 2). The winding proximity portion 355 includes the outer surface proximity portion 350 and the upper end surface proximity portion 352 described above.

  In the winding device 105, the lead portions 334, 336, the lead wires 238, 600, and the refrigerant supply unit 500 can be variously configured by applying the case of the winding device 102 (see FIG. 7). In addition, the formation process of the hollow conductor 305, the formation process of the winding part 200, and the electrical connection process of each lead-out wiring 238, 600 can be applied variously by applying the case of the winding device 102 or the like. Can be executed in order.

  Here, the upper end surface proximate portion 352 and the outer surface proximate portion 350 can be directly connected without using the lead portions 334 and 336. Specifically, the upper end surface proximity portion 352 is formed by winding the tubular conductor 330 in a layer form from the side close to the winding shaft 231, and then the tubular conductor 330 is subsequently wound along the winding shaft 231. Thus, the outer surface proximity portion 350 is formed. According to this, since the connection part between both parts 352 and 350 is unnecessary, simplification of a structure can be achieved and component costs and manufacturing costs can be suppressed.

  According to the winding apparatus 105, the same effect as the above-described winding apparatus 100 can be obtained. In particular, since both the outer surface proximity portion 350 and the end surface proximity portion 352 are provided, a higher cooling efficiency can be obtained as compared with the winding devices 101 and 103 having only one of them.

  FIG. 11 shows a cross-sectional view outlining the winding device 106. The winding device 106 has a configuration in which the hollow conductor portion 300 is replaced with the hollow conductor portion 306 illustrated in FIG. 11 in the winding device 100 illustrated in FIGS.

  The hollow conductor portion 306 has a winding proximity portion 356 and unillustrated lead portions 334 and 336 (see FIGS. 1 and 2). The winding proximity portion 356 includes the outer surface proximity portion 350 and the end surface proximity portions 352 and 354.

  In the winding device 106, the lead portions 334 and 336, the lead wires 238 and 600, and the refrigerant supply unit 500 can be variously configured by applying the case of the winding device 102 (see FIG. 7). Further, the formation process of the hollow conductor 306, the formation process of the winding part 200, and the electrical connection process of each lead-out wiring 238, 600 can be applied variously by applying the case of the winding device 102 or the like. Can be executed in order.

  Here, as in the case of the winding device 105 (see FIG. 10), the upper end surface proximity portion 352 and the outer surface proximity portion 350 may be directly connected without passing through the lead portions 334 and 336. . Alternatively, the lower end surface proximity portion 354 and the outer surface proximity portion 350 may be directly connected.

  According to the winding device 106, the same effects as those of the winding device 100 and the like can be obtained. In particular, since the outer surface proximity portion 350 and the end surface proximity portions 352 and 354 are provided, higher cooling efficiency can be obtained as compared with the winding devices 101 and 103 to 105.

  FIG. 12 is a sectional view outlining the winding device 107. The winding device 107 has a configuration in which the hollow conductor portion 300 is replaced with the hollow conductor portion 307 illustrated in FIG. 12 in the winding device 100 illustrated in FIGS.

  The hollow conductor portion 307 includes a winding proximity portion 357 and lead portions 334 and 336 (not shown) (see FIGS. 1 and 2). The winding proximity portion 357 is configured by the inner surface proximity portion 332, the outer surface proximity portion 350, and the end surface proximity portions 352 and 354.

  In the winding device 107, the lead portions 334, 336, the lead wires 238, 600, and the refrigerant supply unit 500 can be variously configured by applying the case of the winding device 102 (see FIG. 7). In addition, the formation process of the hollow conductor 307, the formation process of the winding part 200, and the electrical connection process of each lead-out wiring 238, 600 can be applied variously by applying the case of the winding device 102 or the like. Can be executed in order.

  Here, the upper end surface proximate portion 352 and the outer surface proximate portion 350 may be directly coupled as in the case of the winding device 106 (see FIG. 11).

  Further, the lower end surface proximity portion 354 and the inner side surface proximity portion 332 may be directly connected. Specifically, the inner surface adjacent portion 332 is formed by winding the tubular conductor 330 along the winding axis 231, and then the tubular conductor 330 is subsequently wound in layers from the side near the winding axis 231. Thus, the lower end surface proximity portion 354 is formed.

  Alternatively, the lower end surface proximity portion 354 and the outer surface proximity portion 350 may be connected, or the upper end surface proximity portion 352 and the inner side surface proximity portion 332 may be connected.

  According to the winding device 107, the same effects as those of the winding device 100 and the like can be obtained. In particular, since the inner surface proximity portion 332, the outer surface proximity portion 350, and the end surface proximity portions 352 and 354 are provided, higher cooling efficiency can be obtained as compared with the winding devices 100 to 106.

  As described above, the winding proximity portions 332 and 350 to 357 have a shape in which the tubular conductor 330 is wound. On the other hand, the winding proximity portion can be configured in a shape other than winding (non-winding shape). In the following, such an example will be described.

  13 and 14 are a perspective view and a cross-sectional view outlining the winding device 108, respectively. The winding device 108 has a configuration in which the hollow conductor portion 300 is replaced with the hollow conductor portion 308 illustrated in FIGS. 13 and 14 in the winding device 100 illustrated in FIGS.

  The hollow conductor portion 308 is composed of four tubular conductors 360a to 360d in the illustrated example. The tubular conductors 360a to 360d may be the same as the tubular conductor 330 (see FIG. 1).

  Each of the tubular conductors 360a to 360d is inserted into the central hole of the winding 232, and both ends are drawn out from the hole.

  In the tubular conductors 360a to 360d, portions 362a to 362d in the central hole of the winding 232 are wound between the central leg 434 of the E-type core 432 and the winding inner surface 240 along the central leg 434, in other words, It extends linearly along the axis 231.

  At this time, since the portions 362a to 362d are close to the winding 232 in the central hole of the winding 232, the portions 362a to 362d will be referred to as winding proximity portions 362a to 362d.

  Further, since the winding proximity portions 362a to 362d are close to the winding inner surface 240, the portions 362a to 362d can also be referred to as inner surface proximity portions 362a to 362d.

  That is, the winding proximity portion 362 of the hollow conductor portion 308 is configured by the four winding proximity portions 362a to 362d or the four inner surface proximity portions 362a to 362d.

  The proximity arrangement of the winding proximity portions 362a to 362d and the winding inner surface 240 is such that the winding proximity portions 362a to 362d and the winding inner surface 240 are in contact with each other as illustrated in FIGS. Alternatively, the winding proximity portions 362a to 362d and the winding inner surface 240 may be in a non-contact state.

  In the example of FIG. 13, the winding proximity portions 362a and 362b are arranged in one winding diameter direction (here, the arrangement direction of the three legs 434, 436, and 436 of the E-type core 432 corresponds). On the other hand, the winding proximity portions 362c and 362d are arranged in another winding radial direction orthogonal to the one winding radial direction. However, the arrangement form of the winding proximity portions 362a to 362d is not limited to such an example.

  The tubular conductors 360a to 360d are drawn out from the winding proximity portions 362a to 362d to one side (here, the side of the I-type core 430) and from the winding proximity portions 362a to 362d to the other side. In this case, it has lead-out portions 366a to 366d drawn to the connection portion 438 side of the E-type core 432.

  In the example of FIG. 13, the drawn portions 364a, 366a, 364b, 366b are drawn to the same side along the direction intersecting the winding shaft 231 (the direction orthogonal here). On the other hand, the lead portions 364c, 366c, 364d, and 366d are drawn along the winding axis direction. However, the drawer form of the drawer portions 364a to 364d and 366a to 366d is not limited to this example.

  Here, in the tubular conductors 360c, 360d, the winding proximity portions 362c, 362d and the lead portions 364c, 366c, 364d, 366d extend in the same direction. For this reason, the tubular conductors 360c and 360d can be disposed without requiring a complicated bending process or the like.

  In the winding device 108, the lead portions 364a to 364d, the lead portions 366a to 366d, the lead wires 238 and 600, and the refrigerant supply unit 500 are variously configured by applying the case of the winding device 102 (see FIG. 7). Is possible. In addition, the formation process of the hollow conductor 308, the formation process of the winding part 200, and the electrical connection process of each lead-out wiring 238, 600 can be applied variously by applying the case of the winding device 102 or the like. Can be executed in order.

  According to the winding device 108, the same effect as that of the winding device 100 (see FIGS. 1 to 3) can be obtained.

  The non-winding winding proximity portion 362 is not limited to the above example.

  For example, the number of tubular conductors constituting the winding proximity portion 362 may be 1 to 3 or 5 or more.

  Further, the winding proximity portion 362 can be applied as an outside surface proximity portion by being disposed close to the winding outside surface 242. In this case, the same effect as that of the outer surface proximity portion 350 (see FIGS. 5 and 6) can be obtained.

  Similarly, the winding proximity portion 362 can be applied as an end face proximity portion by being disposed close to one or both of the winding end faces 244 and 246. In this case, it is possible to obtain the same effect as the end face proximity portions 352 and 354 (see FIGS. 8 and 9).

  The non-winding inner surface proximity portion 362, the outer surface proximity portion, and the end surface proximity portion can be variously combined.

  For example, according to the example of FIG. 13, the lead portions 364a, 364b, 366a, 366b have portions close to the winding end faces 244,246. For this reason, the said part can also be grasped | ascertained as an end surface proximity | contact part. In this case, the end surface proximity portion and the inner surface proximity portion 362 are combined.

  Further, the non-winding winding proximity portion 362 can be combined with the winding-like winding proximity portion 332 (see FIGS. 1 to 3) or the like.

  FIG. 15 is a sectional view outlining the winding device 109. The winding device 109 has a configuration in which bobbins 250 and 370 are added to the winding device 100 illustrated in FIGS.

  The bobbins 250 and 370 are cylindrical bodies having a cylindrical shape, for example, and are made of an insulating material such as a resin.

  The bobbin 250 is provided for the winding part 200, and a conducting wire 230 (see FIG. 1) of the winding 232 is wound on the outer surface of the bobbin 250. The bobbin 370 is provided for the hollow conductor portion 300, and the tubular conductor 330 (see FIG. 1) of the winding portion 332 is wound on the outer surface of the bobbin 370.

  The bobbins 250 and 370 are arranged in the winding device 109 in a form extending along the winding axis direction with the winding axis 231 as the central axis. The inner diameter of the bobbin 250 for the winding part 200 is larger than the outer diameter of the bobbin 370 for the hollow conductor part 300 and further larger than the outer diameter dimension in the winding radial direction of the winding part 332 with the bobbin 370.

  The winding portion 332 with the bobbin 370 is inserted into the bobbin 240. Thus, the winding portion 332 is close to the winding inner surface 240 via the bobbin 250.

  According to the winding device 109, the same effects as those of the winding device 100 can be obtained. In particular, the use of the bobbins 250 and 370 facilitates the manufacture and handling of the winding part 200 and the hollow conductor part 300.

  Another example of a configuration employing a bobbin will be described with reference to FIG. FIG. 16 is a cross-sectional view outlining the winding device 110. The winding device 110 has a configuration in which bobbins 252 and 372 are added to the winding device 103 illustrated in FIG.

  The bobbin 252 for the winding part 200 and the bobbin 372 for the hollow conductor part 303 can be basically configured in the same manner as the bobbins 250 and 370 (see FIG. 15).

  In particular, the bobbins 252 and 372 are arranged in the winding device 110 in a form in which the bobbins 231 are arranged along the winding axis direction with the winding axis 231 as the central axis. Further, in the state where the bobbins 252 and 372 are arranged in the winding device 110, the outside of the bobbins 252 and 372 is arranged so that the end surface 244 of the winding 232 on the bobbin 252 and the winding portion 332 on the bobbin 372 face each other. The diameter is selected. In the example of FIG. 16, the outer surfaces of the bobbins 252 and 372 continue smoothly without a step.

  The bobbins 252 and 372 are disposed close to each other (in contact with each other in the example of FIG. 16), whereby the winding upper end surface 244 and the winding portion 352 are brought close to each other.

  According to the winding device 110, the same effect as that of the winding device 103 can be obtained. In particular, the use of the bobbins 252 and 372 facilitates the manufacture and handling of the winding part 200 and the hollow conductor part 303.

  Here, in the case of the winding apparatus 110, since the bobbins 252 and 372 are arranged along the winding axis direction, the bobbins 252 and 372 can be integrated. That is, the winding part 200 and the hollow conductor part 300 may share one bobbin.

  It is also possible to apply bobbins to the winding device 101 and the like by applying the bobbins 250, 370, 252, and 372.

  Now, the case where the electrical connection between the lead portion 334 of the hollow conductor portion 300 and the second lead wire 238 of the winding portion 200 is directly performed by welding is described above (see FIG. 4). Hereinafter, an example in which the electrical connection is indirectly configured with a conductive member interposed will be described.

  In addition, although the case of the hollow conductor part 300 is illustrated below, an electroconductive member is applicable also to other hollow conductor parts 301 grade | etc.,. In addition, the conductive member can be used for electrical connection between the hollow conductor portion 300 and the third lead wiring 600 (see FIG. 1).

  FIG. 17 is a perspective view outlining the case where the conductive member 800 is used. The exemplary conductive member 800 can be composed of, for example, a metal piece. The conductive member 800 is partly electrically connected to the lead portion 334, and the other part is electrically connected to the lead wire 238.

  In the example of FIG. 17, one end portion of the conductive member 800 is rounded, and a drawer portion 334 is inserted into the annular one end portion. Although not shown, one end of the conductive member 800 and the lead-out portion 334 are welded. Thereby, the conductive member 800 and the lead portion 334 are electrically connected. Note that the insulating coating of the lead-out portion 334 is removed at the electrical connection location.

  Here, as long as an electrical connection is obtained, the welding of the conductive member 800 and the lead portion 334 can be omitted. On the other hand, by performing welding, the electrical connection becomes more reliable, and the conductive member 800 can be more reliably fixed to the drawer portion 334.

  Moreover, even if the one end part of the electroconductive member 800 is not cyclic | annular, welding is possible and an electrical connection is obtained. On the other hand, by inserting the lead-out portion 334 into the end portion formed in a ring shape in advance, it is easy to align and fix the conductive member 800 and the lead-out portion 334 during welding.

  In the example of FIG. 17, the other end of the conductive member 800 is pressure-bonded (pressed) to the lead-out wiring 238. Thereby, the conductive member 800 and the lead-out wiring 238 are electrically connected. Note that the insulating coating of the lead-out wiring 238 is removed at the electrical connection location. Instead of crimping, welding or the like can be used.

  According to the conductive member 800, it is not necessary to bring the lead portion 334 and the lead wiring 238 close to each other.

  Further, the electrical connection position between the lead portion 334 and the conductive member 800 and the electrical connection position between the lead wiring 238 and the conductive member 800 can be selected separately and independently. Therefore, the adoption of the conductive member 800 increases the degree of freedom in selecting the position of electrical connection between the hollow conductor portion 300 and the winding portion 200.

  Further, the adoption of the conductive member 800 increases the degree of freedom in selecting the electrical connection method as described above.

  Therefore, by using the conductive member 800, the winding device 100 can have a suitable structure according to the manufacturing equipment and the like.

  Moreover, since the conductive member 800 is a single component, even when the conductive member 800 is used, an increase in the number of components and the number of manufacturing steps can be suppressed.

  FIG. 18 is a perspective view outlining the case where the conductive member 810 is used. The exemplary conductive member 810 includes a hollow conductor portion terminal 811 electrically connected to the lead portion 334 of the hollow conductor portion 300 and a winding portion electrically connected to the lead wire 238 of the winding portion 200. A terminal 812 and a connector 813 that connects both terminals 811 and 812 in an electrically connected state.

  The electrical connection between the hollow conductor portion terminal 811 and the lead portion 334 can be performed in the same manner as the electrical connection between the conductive member 800 and the lead portion 334 (see FIG. 17). Further, the electrical connection between the winding portion terminal 812 and the lead-out wiring 238 can be performed in the same manner as the electrical connection between the conductive member 800 and the lead-out wiring 238 (see FIG. 17).

  In addition to the screw illustrated in FIG. 18, the connector 813 can be configured by a screw fitting such as a set of a bolt and a nut.

  According to the conductive member 810, like the conductive member 800 illustrated in FIG. 17, the degree of freedom in selecting the position and method of electrical connection between the hollow conductor portion 300 and the winding portion 200 is increased. For this reason, it is possible to provide the winding device 100 having a suitable structure according to the manufacturing equipment and the like.

  In particular, the hollow conductor portion 300 or the lead-out wiring 238 can be easily replaced by attaching / detaching the connector 813.

  Hereinafter, an inverter device will be described as an application example of the winding device 100 and the like. A configuration example of such an inverter device is shown in FIG.

  An inverter device 30 illustrated in FIG. 19 includes a converter unit 40 and an inverter unit 50 connected to the output ends 43 and 44 of the converter unit 40. In FIG. 19, the AC power supply 21 connected to the input terminals 41 and 42 of the converter unit 40 and the load 22 connected to the output terminal of the inverter unit 40 are illustrated for explanation. The load 22 is, for example, a motor. Moreover, although the case where the output of the inverter part 50 is 3 phases is illustrated in FIG. 19, it is not limited to this illustration.

  Converter unit 40 includes a reactor 80, a rectifier circuit 60, and a smoothing circuit 70. The rectifier circuit 60 and the smoothing circuit 70 are not limited to the illustrated configuration example.

  Here, the reactor 80 is constituted by the winding device 100 or the like described above. Reactor 80 has one end connected to one input end 41 of converter unit 40 and the other end connected to one input end 65 of rectifier circuit 50. One end of the reactor 80 corresponds to one of the connection terminals 236 and 602 of the winding device 100 and the other end of the reactor 80 corresponds to the other of the connection terminals 236 and 602 of the winding device 100 and the like.

  The rectifier circuit 60 can be configured by a bridge full-wave rectifier circuit, for example, as in the example of FIG. In such an example, the rectifier circuit 60 includes diodes 61-64. The diode 61 has an anode connected to one input terminal 65 of the rectifier circuit 60 and a cathode connected to one output terminal 67 of the rectifier circuit 60. The diode 62 has an anode connected to the other output end 68 of the rectifier circuit 60 and a cathode connected to the one input end 65. The diode 63 has an anode connected to the other input end 66 of the rectifier circuit 60 and a cathode connected to the one output end 67. The diode 64 has an anode connected to the other output end 68 and a cathode connected to the one input end 66.

  Output terminals 67 and 68 of the rectifier circuit 60 are connected to output terminals 43 and 44 of the converter unit 40 via a smoothing circuit 70.

  The smoothing circuit 70 can be configured using a capacitor (capacitor) as in the example of FIG. In such an example, the smoothing circuit 70 includes electrolytic capacitors 71 to 73. The electrolytic capacitor 71 has a positive electrode connected to one output end 67 of the rectifier circuit 60 and a negative electrode connected to the positive electrode of the electrolytic capacitor 72. The electrolytic capacitor 72 has a negative electrode connected to the other output end 68 of the rectifier circuit 60. The negative electrode of the electrolytic capacitor 71 and the positive electrode of the electrolytic capacitor 72 are also connected to the other input end 66 of the rectifier circuit 60. The electrolytic capacitor 73 has a positive electrode connected to the positive electrode of the electrolytic capacitor 71 and one output end 43 of the converter unit 40, and a negative electrode connected to the negative electrode of the electrolytic capacitor 72 and the other output end 44 of the converter unit 40.

  According to the inverter device 30, the AC input from the AC power supply 21 is reduced in harmonic current by the reactor 80, rectified by the rectifier circuit 60, smoothed by the smoothing circuit 60, and then input to the inverter unit 50. .

  According to the inverter device 30, since the winding device 100 or the like is employed as the reactor 80, effects such as stabilization of operation can be enjoyed along with the various effects exhibited by the winding device 100 or the like.

  Here, the converter unit 40 illustrated above employs the reactor 80 as a so-called AC reactor. On the other hand, it is also possible to employ the reactor 80 as a so-called DC reactor, for example, by connecting the reactor 80 to the output end 67 of the rectifier circuit 60.

  When the winding device 100 or the like is mounted on an air conditioner as a part of the inverter device 30, for example, the heat exchange system of the air conditioner can be used for the refrigerant supply unit 500 (see FIG. 1) of the winding device 100 or the like. Is possible. Below, this structure is illustrated.

  In FIG. 20, the schematic diagram in which the air conditioner 700 is outlined is shown. The air conditioner 700 has a heat exchange system 730 for air conditioning, and the system 730 is a heat exchange system using a refrigerant.

  In the example of FIG. 20, the heat exchange system 730 includes a compressor 732, a condenser 734, an expansion valve 736, an evaporator 738, and pipes 742, 744, 746, and 748. These are connected as follows to constitute a circulation channel, and the channel is filled with a refrigerant.

  The refrigerant outlet of the compressor 732 is connected to the refrigerant inlet of the condenser 734 via a pipe 742. The refrigerant outlet of the condenser 734 is connected to the refrigerant inlet of the expansion valve 736 via a pipe 744. The refrigerant outlet of the expansion valve 736 is connected to the refrigerant inlet of the evaporator 738 via a pipe 746. The refrigerant outlet of the evaporator 738 is connected to the refrigerant inlet of the compressor 732 via a pipe 748.

  The compressor 732 compresses the gaseous refrigerant supplied from the pipe 748 and discharges it to the condenser 734. The condenser 734 liquefies the refrigerant compressed by the compressor 732. Specifically, the refrigerant is liquefied by removing latent heat from the refrigerant. The expansion valve 736 reduces the pressure of the refrigerant liquefied by the condenser 734. As a result, a pressure difference is generated between the refrigerant inlet side and the refrigerant outlet side of the expansion valve 736. The refrigerant that has passed through the expansion valve 736 also decreases in temperature as the pressure decreases, and becomes a low temperature. Note that a capillary tube (capillary tube) may be used instead of the expansion valve 736.

  According to the heat exchange system 730, cooling can be performed by using the heat of vaporization when the refrigerant is vaporized by the evaporator 738 via the expansion valve 736. More specifically, the air conditioner 700 can perform a cooling operation by sending air to the evaporator 738 by a blower (fan) (not shown).

  The air conditioner 700 also has a winding device 111. A winding device 111 illustrated in FIG. 20 has a configuration in which the refrigerant supply unit 500 is replaced with a refrigerant supply unit 501 in the winding device 100 illustrated in FIG.

  The refrigerant supply unit 501 is configured using a heat exchange system 730 of the air conditioner 700. More specifically, the refrigerant supply unit 501 includes a heat exchange system 730 of the air conditioner 700, pipe connection parts 530 and 532, and pipes 534 and 536. The pipe connection parts 530 and 532 are connected to the evaporator 738 of the heat exchange system 730 through the pipes 534 and 536.

  For this reason, the hollow conductor portion 300 communicates with the evaporator 738, and a low-temperature refrigerant is supplied from the evaporator 738 to the hollow conductor portion 300. Thereby, the coil | winding 232 can be cooled using the heat exchange system 730 for air conditioners.

  The air conditioner 700 uses the heat of vaporization of the refrigerant as described above. For this reason, the refrigerant undergoes a phase change between the liquid phase and the gas phase. On the other hand, there is also an air conditioner that performs air conditioning without changing the phase of the refrigerant. Hereinafter, this configuration will be exemplified.

  FIG. 21 is a schematic diagram outlining the air conditioner 701. The air conditioner 701 has a heat exchange system 760 for air conditioning, and the system 760 is a heat exchange system using a refrigerant.

  In the illustration of FIG. 21, the heat exchange system 760 includes a cooling unit 762, a pump 764, a heat exchanger 766, and pipes 772, 774, 776. These are connected as follows to constitute a circulation channel, and the channel is filled with a refrigerant. Note that the refrigerant can be either liquid or gaseous.

  The cooling unit 762 is connected to the pump 764 via the pipe 772. The pump 764 is connected to the heat exchanger 766 via a pipe 774. The heat exchanger 766 is connected to the cooling unit 762 via a pipe 776. Thereby, a circulation channel is constituted and the channel is filled with a refrigerant.

  In such a circulation channel, a flow of refrigerant is formed by the pump 764. Depending on which of the pipes 772 and 774 the refrigerant discharge port of the pump 764 is connected to, the refrigerant can flow from the pump 764 toward the cooling unit 762, or conversely toward the heat exchanger 766. It is also possible to allow the refrigerant to flow.

  The refrigerant circulates between the cooling unit 762 and the heat exchanger 766 by the transport force of the pump 764. At this time, the refrigerant cooled by the cooling unit 762 can perform cooling by exchanging heat with the air to be conditioned in the heat exchanger 766. More specifically, the air conditioner 701 can perform a cooling operation by sending air to the heat exchanger 766 by a blower (fan) (not shown).

  Here, the cooling unit 762 can be configured to include, for example, a flow path communicating with its own refrigerant inlet and refrigerant outlet, and a cooling system disposed in proximity to the flow path. Various cooling systems can be applied, and for example, the same cooling system as the heat exchange system 730 illustrated in FIG. 20 can be applied. In the case of this example, the evaporator of the cooling system (corresponding to the evaporator 738 in FIG. 20) is arranged close to or in contact with the refrigerant flow path of the cooling unit 762. Thereby, the refrigerant of heat exchange system 760 is cooled.

  The air conditioner 701 also has a winding device 112. A winding device 112 illustrated in FIG. 21 has a configuration in which the refrigerant supply unit 500 is replaced with a refrigerant supply unit 502 in the winding device 100 illustrated in FIG.

  The refrigerant supply unit 502 is configured using a heat exchange system 760 of the air conditioner 701. More specifically, the refrigerant supply unit 502 includes a heat exchange system 760 of the air conditioner 701, pipe connection parts 530 and 532, and pipes 534 and 536. The pipe connection parts 530 and 532 are connected to the heat exchanger 766 of the heat exchange system 760 via the pipes 534 and 536.

  For this reason, the hollow conductor part 300 communicates with the heat exchanger 766, and a low-temperature refrigerant is supplied from the heat exchanger 766 to the hollow conductor part 300. Thereby, the coil | winding 232 can be cooled using the heat exchange system 760 for air conditioners.

  According to the air conditioners 700 and 701, the air-conditioning heat exchange systems 730 and 760 are used as the refrigerant supply units 501 and 502 of the winding devices 111 and 112 (also used). For this reason, compared with the air conditioner which mounts the winding apparatus 100 which has the refrigerant | coolant supply part 500 (refer FIG. 1) as it is, an increase in a number of parts can be suppressed. Therefore, for example, the air conditioners 700 and 701 can be configured in a small size.

  The heat exchange system for the air conditioner is not limited to the heat exchange systems 700 and 701 exemplified above. In addition, the configuration of the air conditioners 700 and 701 can also be applied when other winding devices 101 or the like are mounted on the air conditioner.

  By the way, the case where the second and third lead wires 238 and 600 are connected to the lead portions 334 and 336 of the hollow conductor portion 300 is illustrated above. On the other hand, for example, in the winding apparatus 100 (see FIGS. 1 to 4), it is possible to connect the lead wires 238 and 600 to both ends of the winding proximity portion 332. Even in such a case, the winding proximity portion 332 is provided between the electrical connection point 338 of the second lead-out wiring 238 (see FIG. 1) and the electrical connection point 340 of the third lead-out wiring 600 (see FIG. 1). It has been. The same applies to other winding devices 101 and the like.

  On the other hand, according to the configuration in which the lead wires 238 and 600 are connected to the lead portions 334 and 336 as described above, the electrical connection portions 338 and 340 are connected to the winding proximity portion 332, the winding body 232, the core 400, 401 can be provided to avoid a portion where 401 is dense. For this reason, for example, electrical connection work is facilitated.

  Moreover, the case where the winding axis | shaft 231 (refer FIG. 1 etc.) is linear shape was illustrated above. However, the winding shaft 231 may be curved, for example, annular.

  Moreover, the case where the winding apparatus 100 etc. have the core 400 or the core 401 was illustrated above. On the other hand, it is also possible to remove the cores 400 and 401 from the winding device 100 or the like to constitute a so-called air-core type winding device. The various effects described above can also be obtained with this configuration.

  Moreover, although the case where the coil | winding part 200 comprised a reactor was illustrated above, the structure of the coil | winding apparatus 100 grade | etc., Is applicable also to another coil | winding apparatus. For example, also when the winding part 200 comprises one or both winding parts of the primary side and the secondary side of a transformer (transformer), the said structure of winding apparatus 100 grade | etc., Can be applied, Various effects can be obtained.

It is a schematic diagram which outlines the winding apparatus which concerns on embodiment of this invention. It is a disassembled perspective view which outlines the coil | winding apparatus which concerns on embodiment of this invention. It is sectional drawing which outlines the winding apparatus which concerns on embodiment of this invention. It is a perspective view which outlines the winding device concerning an embodiment of the invention. It is a disassembled perspective view which outlines the coil | winding apparatus which concerns on embodiment of this invention. It is sectional drawing which outlines the winding apparatus which concerns on embodiment of this invention. It is sectional drawing which outlines the winding apparatus which concerns on embodiment of this invention. It is sectional drawing which outlines the winding apparatus which concerns on embodiment of this invention. It is sectional drawing which outlines the winding apparatus which concerns on embodiment of this invention. It is sectional drawing which outlines the winding apparatus which concerns on embodiment of this invention. It is sectional drawing which outlines the winding apparatus which concerns on embodiment of this invention. It is sectional drawing which outlines the winding apparatus which concerns on embodiment of this invention. It is a disassembled perspective view which outlines the coil | winding apparatus which concerns on embodiment of this invention. It is sectional drawing which outlines the winding apparatus which concerns on embodiment of this invention. It is sectional drawing which outlines the winding apparatus which concerns on embodiment of this invention. It is sectional drawing which outlines the winding apparatus which concerns on embodiment of this invention. It is a perspective view which outlines the winding device concerning an embodiment of the invention. It is a perspective view which outlines the winding device concerning an embodiment of the invention. It is a circuit diagram which outlines the inverter apparatus which concerns on embodiment of this invention. 1 is a schematic diagram outlining an air conditioner according to an embodiment of the present invention. 1 is a schematic diagram outlining an air conditioner according to an embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 30 Inverter apparatus 40 Converter part 43,44 Output part of converter part 50 Inverter part 60 Rectifier circuit 65 Input terminal of rectifier circuit 67 Output terminal of rectifier circuit 80 Reactor 100-112 Winding apparatus 200 Winding part 230 Solid state conductor 231 Winding Rotating shaft 232 Winding body 234, 238, 600 Lead wire 240 Winding inner surface 242 Winding outer surface 244, 246 Winding end surface 300-308 Hollow conductor part 330, 360a-360d Tubular conductor 332, 350-357, 362 Winding Line proximity portion 338, 340 Electrical connection location 500-502 Refrigerant supply portion 700, 701 Air conditioner 730, 760 Air conditioning heat exchange system 800, 810 Conductive member 811 Hollow conductor portion terminal 812 Wiring terminal 813 Connecting tool

Claims (10)

An air conditioner (700, 701) including an air conditioning heat exchange system (730, 760) using a refrigerant,
A winding device (100 to 112),
The winding device is
A winding part (200) which is composed of a solid conductor (230) and has a winding body (232), and first and second lead wires (234, 238) continuing from the winding body;
A hollow conductor portion (300 to 308) composed of a tubular conductor (330, 360a to 360d) and electrically connected to the second lead wiring;
A refrigerant supply unit (500 to 502) connected to the hollow part of the hollow conductor part and supplying a refrigerant to the hollow part;
A third lead wiring (600) electrically connected to the hollow conductor portion,
The hollow conductor portion is disposed close to the winding body between a portion (338) to which the second lead wire is connected and a portion (340) to which the third lead wire is connected. have a winding adjacent portions (332,350～357,362) was,
The refrigerant supply unit of the winding device is configured using the air-conditioning heat exchange system,
An air conditioner in which the refrigerant of the air conditioning heat exchange system is supplied to the hollow conductor portion . The air conditioner according to claim 1 ,
For the winding device (100,102,107～109,111,112), said winding proximal section includes an inner surface adjacent portions close to the inner surface (240) of the winding body (332,362) , Air conditioner . The air conditioner according to claim 1 or 2 ,
For the winding device (101,102,105～107), the winding near-portion outer surface adjacent portions close to the outer surface (242) of the winding body comprises a (350), an air conditioner. The air conditioner according to any one of claims 1 to 3 ,
In the winding device (103 to 107, 110) , the winding proximity portion is an end face proximity portion (352) close to at least one end face (244, 246) in the winding axis (231) direction of the winding body. , including the 354), the air conditioner. The air conditioner according to any one of claims 1 to 4 ,
In the winding device (100 to 107, 109 to 112) , the winding proximity portion includes a current that flows through the winding body when the tubular conductor is wound around the winding axis (231) of the winding body. And an air conditioner including winding portions (332, 350, 352, 354) through which the current flows in the same direction. The air conditioner according to claim 5 ,
About the said winding apparatus (100-107, 109-112) , the said winding part is an air conditioner pulled out to the tangential direction of winding. The air conditioner according to any one of claims 1 to 6 ,
Wherein the winding device (100-112), wherein at least one of a second lead-out wiring and the third lead wire, the welded hollow conductor section is electrically connected, an air conditioner. The air conditioner according to any one of claims 1 to 6 ,
In the winding device (100 to 112) , at least one of the second lead wiring and the third lead wiring is electrically connected to the hollow conductor portion via a conductive member (800, 810). Air conditioner that has been. The air conditioner according to claim 8 ,
For the winding device (100-112), the conductive member, the hollow conductor part and is electrically connected to the other said in some second or third lead wire electrically connected in some The air conditioner is composed of a single part (800). The air conditioner according to claim 8 ,
For the winding device (100 to 112) , the conductive member is:
A hollow conductor portion terminal (811) electrically connected to the hollow conductor portion;
A wiring terminal (812) electrically connected to the second or third lead wiring;
An air conditioner comprising: a coupler (813) that couples the hollow conductor portion terminal and the wiring terminal in an electrically connected state.

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