JP4904969B2 - Air conditioner discharge unit - Google Patents

Description

  The present invention relates to a discharge unit of an air conditioner.

  Some air conditioners that can clean indoor air include a discharge unit that generates plasma, and the air can be cleaned by plasma. The discharge unit includes a discharge electrode and a ground electrode, and generates a plasma when a discharge voltage is applied between the discharge electrode and the ground electrode.

In this discharge unit, the discharge electrode and the ground electrode are supported by an insulating resin support member, and the insulation between the discharge electrode and the ground electrode is ensured by the support member (Patent Document 1). reference).
JP 2006-014849 A

  By the way, since a high voltage is applied to the discharge electrode and the ground electrode, it is desirable that the insulation between the discharge electrode and the ground electrode is as high as possible. In order to increase the insulation between the discharge electrode and the ground electrode, it is effective to increase the creepage distance by increasing the distance between the discharge electrode support portion and the ground electrode support portion of the support member. For example, it is conceivable that the support member has a curved shape at a plurality of locations or an elongated shape. However, it is difficult to stably hold the discharge electrode and the ground electrode in a complicated shape or an elongated shape curved at a plurality of places, and there is a possibility that the discharge unit is increased in size.

  The subject of this invention is providing the discharge unit of the air conditioner which can suppress that the shape of the support member which supports a discharge electrode and a ground electrode becomes complicated.

A discharge unit of an air conditioner according to a first aspect of the present invention is a discharge unit attached to an air conditioner main body that purifies air, and includes a discharge electrode and a ground electrode, a support member, a first conductor, 2 conductors. The discharge electrode and the ground electrode generate plasma by being applied with a discharge voltage. The support member is a resin member having a first discharge electrode support portion that supports the discharge electrode and a first ground electrode support portion that supports the ground electrode. The first conductor is provided inside the first discharge electrode support portion and electrically connects the first main body side contact provided on the air conditioner main body side and the discharge electrode. The second conductor is provided inside the first ground electrode support portion, and electrically connects the second main body side contact provided on the air conditioner main body side and the ground electrode. The support member further includes a main body portion facing the discharge electrode. The first discharge electrode support portion has a shape extending linearly from the main body portion toward the discharge electrode.

  In the discharge unit of the air conditioner, the first conductor is provided inside the first discharge electrode support portion that supports the discharge electrode, and the first conductor contacts the discharge electrode and the air conditioner body side by the first conductor. Are electrically connected. The second conductor is provided inside the first ground electrode support portion that supports the ground electrode, and the ground electrode and the second body side contact on the air conditioner body side are electrically connected by the second conductor. The For this reason, the insulation between a 1st discharge electrode support part and a 1st ground electrode support part can be improved. Thereby, it can suppress that the shape of a supporting member becomes complicated.

  Further, in the discharge unit of the air conditioner, the first discharge electrode support portion has a shape that linearly extends from the main body portion toward the discharge electrode, and has a relatively simple shape. For this reason, a discharge electrode can be supported stably.

  A discharge unit of an air conditioner according to a second aspect of the present invention is a discharge unit attached to an air conditioner main body that purifies air, and includes a discharge electrode and a ground electrode, a support member, a first conductor, 2 conductors. The discharge electrode and the ground electrode generate plasma by being applied with a discharge voltage. The support member is a resin member having a first discharge electrode support portion that supports the discharge electrode and a first ground electrode support portion that supports the ground electrode. The first conductor is provided inside the first discharge electrode support portion and electrically connects the first main body side contact provided on the air conditioner main body side and the discharge electrode. The second conductor is provided inside the first ground electrode support portion, and electrically connects the second main body side contact provided on the air conditioner main body side and the ground electrode. The support member further includes a main body portion facing the ground electrode. The first ground electrode support portion has a shape extending linearly from the main body portion toward the ground electrode.

  In the discharge unit of the air conditioner, the first conductor is provided inside the first discharge electrode support portion that supports the discharge electrode, and the first conductor contacts the discharge electrode and the air conditioner body side by the first conductor. Are electrically connected. The second conductor is provided inside the first ground electrode support portion that supports the ground electrode, and the ground electrode and the second body side contact on the air conditioner body side are electrically connected by the second conductor. The For this reason, the insulation between a 1st discharge electrode support part and a 1st ground electrode support part can be improved. Thereby, it can suppress that the shape of a supporting member becomes complicated.

  In the discharge unit of the air conditioner, the first ground electrode support portion has a shape that extends linearly from the main body portion toward the ground electrode, and has a relatively simple shape. For this reason, the ground electrode can be stably supported.

A discharge unit of an air conditioner according to a third aspect of the present invention is the discharge unit of the air conditioner of the first or second aspect , wherein the first discharge electrode support part and the first ground electrode support part are It has a linear shape extending in the same direction from one surface.

  In the discharge unit of the air conditioner, the first discharge electrode support part and the first ground electrode support part have a linear shape extending in the same direction from one surface of the main body part. For this reason, the discharge electrode and the ground electrode can be supported stably, respectively, and the accuracy of the separation distance between the discharge electrode and the ground electrode can be improved.

A discharge unit of an air conditioner according to a fourth aspect of the present invention is the discharge unit of the air conditioner of the third aspect , wherein the first discharge electrode support part and the first ground electrode support part are formed of a discharge electrode and a ground electrode. It extends in a direction parallel to the separation direction.

  In the discharge unit of the air conditioner, the first discharge electrode support portion and the first ground electrode support portion extend in a direction parallel to the separation direction of the discharge electrode and the ground electrode. The accuracy of the separation distance can be further improved.

A discharge unit of an air conditioner according to a fifth aspect of the present invention is the discharge unit of the air conditioner of any one of the first to fourth aspects, wherein the support member includes a second discharge electrode support part that supports the discharge electrode, and And a second ground electrode support part for supporting the ground electrode. The distance between the first discharge electrode support part and the first ground electrode support part is greater than the distance between the first discharge electrode support part and the second ground electrode support part, and the first ground electrode support part. Greater than the distance between the portion and the second discharge electrode support.

  In the discharge unit of the air conditioner, the first conductor is connected to the first discharge electrode support portion and the first ground electrode support portion that are located farthest among the support portions that support the discharge electrode and the ground electrode. A second conductor is provided. For this reason, a large creepage distance between the discharge electrode and the ground electrode is ensured, and the insulation can be further improved.

An air conditioner pertaining to a sixth invention comprises the discharge unit according to any one of the first to fifth inventions, and an air conditioner body. A discharge unit is attached to the air conditioner body, and the air that has passed through the discharge unit is blown out into the room.

  In this air conditioner, in the discharge unit, the first conductor is provided inside the first discharge electrode support portion that supports the discharge electrode, and the first conductor side of the discharge electrode and the air conditioner body side by the first conductor. The contact is electrically connected. The second conductor is provided inside the first ground electrode support portion that supports the ground electrode, and the ground electrode and the second body side contact on the air conditioner body side are electrically connected by the second conductor. The For this reason, the insulation between a 1st discharge electrode support part and a 1st ground electrode support part can be improved. Thereby, it can suppress that the shape of a supporting member becomes complicated.

  In the discharge unit of the air conditioner according to the first aspect of the present invention, the insulation between the first discharge electrode support portion and the first ground electrode support portion can be improved, and the shape of the support member is prevented from becoming complicated. be able to.

  In the discharge unit of the air conditioner according to the second aspect of the invention, the insulation between the first discharge electrode support portion and the first ground electrode support portion can be improved, and the shape of the support member is prevented from becoming complicated. be able to.

In the discharge unit of the air conditioner according to the third aspect of the present invention, the first discharge electrode support part and the first ground electrode support part have a linear shape extending in the same direction from one surface of the main body part. For this reason, the discharge electrode and the ground electrode can be supported stably, respectively, and the accuracy of the separation distance between the discharge electrode and the ground electrode can be improved.

In the discharge unit of the air conditioner according to the fourth aspect of the present invention, the first discharge electrode support portion and the first ground electrode support portion extend in a direction parallel to the separation direction of the discharge electrode and the ground electrode. The accuracy of the separation distance between the electrode and the ground electrode can be further improved.

In the discharge unit of the air conditioner according to the fifth aspect of the present invention, the first discharge electrode support portion and the first ground electrode support portion, which are located farthest among the support portions that support the discharge electrode and the ground electrode, are connected to each other. One conductor and a second conductor are provided. For this reason, a large creepage distance between the discharge electrode and the ground electrode is ensured, and the insulation can be further improved.

In the air conditioner according to the sixth aspect of the invention, the insulation between the first discharge electrode support portion and the first ground electrode support portion can be improved, and the shape of the support member can be prevented from becoming complicated. .

<Overall configuration of the air conditioner 1>
An air conditioner 1 according to an embodiment of the present invention is shown in FIG. This air conditioner 1 is a floor-standing type air purifier installed on a floor in the room, and can take indoor air into the interior, clean it, and blow it out into the room. The air conditioner 1 includes a front panel 2, an air conditioner body 3, and a streamer discharge unit 6 (see FIGS. 2 and 3). The front panel 2 closes the front surface of the air conditioner body 3. The air conditioner main body 3 is provided with suction ports 5 for sucking indoor air at the fronts on both side surfaces. In addition, an air outlet (not shown) is provided at the upper rear portion of the air conditioner main body 3, and the air purified through the streamer discharge unit 6 enters the room from the air outlet of the air conditioner main body 3. It is blown out.

  Next, the basic configuration of the air conditioner 1 will be described with reference to FIG. FIG. 2 is a schematic diagram showing the internal configuration of the air conditioner 1 together with the air flow. The air conditioner body 3 includes a pre-filter 41, a plasma ionization unit 42, a photocatalytic filter 43, a plasma catalytic filter 44, a blower 30 and the like.

  The pre-filter 41 is a filter through which air sucked from the suction port 5 first passes, and removes relatively large dust and dust from the air. The prefilter 41 is provided behind the front panel 2 and is attached to the front surface of a plasma ionization unit 42 described later. The pre-filter 41 is composed of a net made of a thread-like resin net made of polypropylene (hereinafter referred to as PP) and a frame that holds the net (not shown). Visible light type photocatalyst and catechin are supported on the fibers constituting the net of the prefilter 41 so as to be exposed to the air side. The visible light type photocatalyst contains titanium oxide or the like whose photocatalytic action is activated by visible light, and removes fungi and viruses such as fungi and bacteria contained in dust attached to the prefilter 41.

  The plasma ionization unit 42 is a device that charges fine particles such as dust contained in the passing air, and is located downstream of the air flow of the prefilter 41.

  The photocatalytic filter 43 is a pleated filter disposed on the downstream side of the air flow of the plasma ionization unit 42, and is formed by bonding an electrostatic filter 45 and a titanium apatite-carrying filter. The photocatalytic filter 43 is arranged so that the electrostatic filter 45 faces the front side and the titanium apatite-carrying filter faces the rear side. The electrostatic filter 45 collects dust and the like charged when passing through the plasma ionization unit 42. The titanium apatite-carrying filter adsorbs dust or the like that has passed through the electrostatic filter 45. This titanium apatite-carrying filter is formed of PP fibers carrying titanium apatite, like the pre-filter 41. Titanium apatite is apatite in which some calcium atoms of calcium hydroxyapatite are replaced with titanium atoms by a technique such as ion exchange. This titanium apatite has the property of specifically adsorbing viruses, molds, bacteria, etc. contained in dust and the like. The titanium apatite has a photocatalytic function activated by active species supplied from a streamer discharge unit 6 described later, and inactivates or kills viruses, molds, bacteria, and the like. In addition, since this photocatalyst filter 43 is formed in the pleat shape, it can be easily folded according to a crease | fold. For this reason, the spare photocatalyst filter 43 can be stored in a replacement filter storage portion A provided inside the air conditioner body 3 in a folded state (see FIG. 3).

  The plasma catalyst filter 44 is disposed in front of the blower fan 31 of the blower 30 and behind the photocatalyst filter 43. That is, the plasma catalyst filter 44 is disposed between the blower fan 31 and the photocatalyst filter 43. The plasma catalyst filter 44 carries anatase type titanium dioxide. The plasma catalyst filter 44 adsorbs viruses and fungi in the air that have not been adsorbed by the photocatalytic filter 43. In the plasma catalyst filter 44, the adsorbed bacteria and viruses are killed or inactivated by the titanium dioxide activated by the active species.

  The blower 30 is sucked from the suction port 5, and generates a flow of air blown from the blowout port through the prefilter 41, the plasma ionization unit 42, the photocatalytic filter 43, and the plasma catalyst filter 44. The blower device 30 includes a blower fan 31 and a fan motor 32. The blower fan 31 is a centrifugal fan that sucks air from the rotation axis direction and blows air from the rotation center toward the outside in the radial direction. The fan motor 32 is an inverter motor whose frequency is controlled by an inverter circuit, and is controlled by a control unit (not shown). Note that most of the air flow generated by the blower 30 is sent to the outlet, but a part of the air flow is branched from the main flow and sent to the streamer discharge unit 6.

<Configuration of streamer discharge unit 6>
The streamer discharge unit 6 is accommodated in the discharge unit accommodating part B by being inserted into the discharge unit accommodating part B of the air conditioner body 3 from the front side (see FIG. 3). The streamer discharge unit 6 is detachably attached to the discharge unit housing portion B. The streamer discharge unit 6 can generate streamer discharge by being supplied with a discharge voltage from the air conditioner body 3, and can clean the air by generating active species. The streamer discharge unit 6 is provided in an air passage branched from an air passage through which a main flow of the air flow generated by the blower 30 passes, and includes a prefilter 41, a plasma ionization unit 42, a photocatalytic filter 43, and a plasma catalytic filter 44. The purified air after passing through is sent to the streamer discharge unit 6. The air containing the active species through the streamer discharge unit 6 is returned to the upstream side of the prefilter 41 by a duct (not shown), is supplied to the photocatalytic filter 43 through the prefilter 41 and the plasma ionization unit 42.

  Hereinafter, the configuration of the streamer discharge unit 6 will be described in detail.

  The streamer discharge unit 6 has an outer shape that is long in the front-rear direction, that is, the direction in which the streamer discharge unit 6 is taken in and out. It is done. As shown in FIGS. 4 to 7, the streamer discharge unit 6 includes a discharge electrode 11 and a ground electrode 12, a support member 13, a first conductor 14, and a second conductor 15.

[Discharge electrode 11 and ground electrode 12]
The discharge electrode 11 and the ground electrode 12 are metal plate-like members that generate plasma when a discharge voltage is applied. As shown in FIGS. 4 and 5, the distances are parallel to each other and in the horizontal direction. Are arranged opposite to each other. Further, the discharge electrode 11 and the ground electrode 12 have an elongated shape in the front-rear direction. The ground electrode 12 is larger than the discharge electrode 11, and the discharge electrode 11 is covered with the ground electrode 12 in a side view (see FIG. 6).

  Further, as shown in FIG. 5, two projecting portions 16 and 17 projecting toward the ground electrode 12 are provided in the longitudinal middle portion of the discharge electrode 11. FIG. 5 is a top view of the streamer discharge unit 6. These protrusions 16 and 17 are arranged at a distance in the longitudinal direction of the discharge electrode 11, that is, the front-rear direction, and a thin needle-like portion is provided at the tip. The distance between the needle-like portion and the ground electrode 12, that is, the separation distance D1 between the discharge electrode 11 and the ground electrode 12, is set to a distance necessary to cause the streamer discharge. The required error range is set to be less than 1 mm in order to cause the occurrence of noise stably.

[Support member 13]
The support member 13 is a resin member that supports the discharge electrode 11 and the ground electrode 12, and includes a main body portion 18, a first discharge electrode support portion 19, a second discharge electrode support portion 20, and a first ground electrode support portion 21. , A second ground electrode support portion 22, a grip portion 23, and the like.

  The main body 18 is a member having a substantially L-shaped cross section, and has a side surface 24 and a bottom surface 25. The side surface portion 24 is provided on the side of the discharge electrode 11 and the ground electrode 12 and faces the discharge electrode 11 and the ground electrode 12. The side surface portion 24 is disposed in parallel to the discharge electrode 11 and the ground electrode 12, the discharge electrode 11 is disposed at a position close to the side surface portion 24, and the ground electrode 12 is disposed outside thereof. The bottom surface portion 25 is connected perpendicularly to the lower end of the side surface portion 24 and covers the lower part of the discharge electrode 11 and the ground electrode 12. In addition, the bottom surface portion 25 is provided with a plurality of holes through which air containing active species generated by streamer discharge can pass.

  The first discharge electrode support portion 19 is a portion that supports the discharge electrode 11 and is provided so as to protrude laterally from the side surface portion 24 of the main body portion 18. The first discharge electrode support portion 19 is a boss having a shape extending linearly from the main body portion 18 toward the discharge electrode 11, and as shown in FIG. 8, a screw 26 (FIG. 5) for fixing the discharge electrode 11. A screw hole 27 through which a reference is made is provided. In addition, a first through hole 28 is provided above the screw hole 27 in the first discharge electrode support portion 19 in parallel with the screw hole 27. The first through hole 28 is a hole through which a first conductor 14 described later passes, and penetrates the first discharge electrode support portion 19 and the side surface portion 24 of the main body portion 18.

  The second discharge electrode support portion 20 is disposed at a distance in the front-rear direction with respect to the first discharge electrode support portion 19, and supports the discharge electrode 11 together with the first discharge electrode support portion 19. The second discharge electrode support portion 20 is provided so as to protrude laterally from the side surface portion 24 of the main body portion 18. The second discharge electrode support portion 20 is a boss having a shape extending linearly from the main body portion 18 toward the discharge electrode 11, and has the same axial length as the first discharge electrode support portion 19. The second discharge electrode support portion 20 is provided with a screw hole 52 through which a screw 51 (see FIG. 5) for fixing the discharge electrode 11 is passed.

  The first ground electrode support portion 21 is a portion that supports the ground electrode 12 and is provided so as to protrude laterally from the side surface portion 24 of the main body portion 18. The first ground electrode support portion 21 is a boss having a shape extending linearly from the main body portion 18 toward the ground electrode 12, and the first discharge electrode support portion 19 and the second discharge electrode from the side surface portion 24 of the main body portion 18. It extends in the same direction as the support portion 20. The first ground electrode support portion 21 is provided with a screw hole 54 through which a screw 53 (see FIGS. 4 and 5) for fixing the ground electrode 12 is passed. Further, a second through hole 55 is provided below the screw hole 54 in the first ground electrode support portion 21 in parallel to the screw hole 54. The second through hole 55 is a hole through which a second conductor 15 described later passes, and penetrates the first ground electrode support portion 21 and the side surface portion 24. The first ground electrode support portion 21 has a larger axial length than the first discharge electrode support portion 19 and the second discharge electrode support portion 20.

  The second ground electrode support portion 22 is disposed at a distance from the first ground electrode support portion 21 in the front-rear direction of the ground electrode 12, and supports the discharge electrode 11 together with the first ground electrode support portion 21. The second ground electrode support portion 22 is provided so as to protrude laterally from the side surface portion 24 of the main body portion 18. The second ground electrode support portion 22 is a boss having a shape extending linearly from the main body portion 18 toward the ground electrode 12, and has the same axial length as that of the first ground electrode support portion 21. The second ground electrode support 22 is provided with a screw hole 57 through which a screw 56 (see FIGS. 4 and 5) for fixing the discharge electrode 11 is passed. As shown in FIG. 6, the second ground electrode support portion 22 is provided at a position slightly higher than the first ground electrode support portion 21.

  The first discharge electrode support portion 19 and the second discharge electrode support portion 20 described above are provided between the first ground electrode support portion 21 and the second ground electrode support portion 22 in the front-rear direction. The discharge electrode support portion 19 is provided on the rear side, and the second discharge electrode support portion 20 is provided on the front side. In the first ground electrode support portion 21 and the second ground electrode support portion 22, the first ground electrode support portion 21 is provided on the front side, and the second ground electrode support portion 22 is provided on the rear side. . Therefore, the distance between the first discharge electrode support part 19 and the first ground electrode support part 21 is larger than the distance between the first discharge electrode support part 19 and the second ground electrode support part 22, and It is larger than the distance between the first ground electrode support portion 21 and the second discharge electrode support portion 20.

  Further, as shown in FIGS. 5 and 7, the side portion 24 of the main body portion 18 includes the first discharge electrode support portion 19, the second discharge electrode support portion 20, the first ground electrode support portion 21, and the second A plate-like first protection part 58 and a second protection part 59 projecting from the surface opposite to the side on which the ground electrode support part 22 is provided (hereinafter referred to as “the outer surface 61 of the side face part 24”) are provided. It has been. The 1st protection part 58 protrudes from the outer surface 61 of the side part 24 along the 1st discharge unit side contact 60 mentioned later, and protects the 1st discharge unit side contact 60. FIG. The second protection part 59 is disposed at a distance in the front-rear direction with respect to the first protection part 58, and is disposed on the front side and at a lower position than the first protection part 58. The second protection part 59 projects from the outer surface 61 of the discharge unit along a second discharge unit side contact 62 described later, and protects the second discharge unit side contact 62. The first protection part 58 and the second protection part 59 protect the contacts 60 and 62 and are provided in the air conditioner main body 3 when the streamer discharge unit 6 is inserted into the discharge unit housing part B. Further, it also functions as a guide for the streamer discharge unit 6 by sliding with respect to the rail portion 63 (see FIG. 9).

  The grip portion 23 is attached to the front surface of the main body portion 18 and is a portion that is gripped when the streamer discharge unit 6 is taken in and out.

[First conductor 14 and second conductor 15]
The first conductor 14 shown in FIG. 5 is an elongated plate-shaped member made of metal, and is provided inside the first discharge electrode support portion 19 by passing through the first through hole 28. One end of the first conductor 14 is in contact with the discharge electrode 11, and the other end protrudes from the outer surface 61 of the side surface portion 24. A portion of the first conductor 14 that protrudes outward from the outer surface 61 of the side surface 24 is a first discharge unit side contact 60 that contacts a first main body side contact 64 provided in the air conditioner main body 3 described later. It has become. When the streamer discharge unit 6 is attached to the air conditioner body 3, the first discharge unit side contact 60 comes into contact with the first body side contact 64 to electrically connect the first body side contact 64 and the discharge electrode 11. Connecting. Note that the first protection portion 58 described above protrudes slightly outward from the tip of the first discharge unit side contact 60. As shown in FIG. 7, the first discharge unit side contact 60 is located below the first protection part 58, and the upper surface of the first discharge unit side contact 60 is in contact with the lower surface of the first protection part 58. . Further, the lower surface of the first discharge unit side contact 60 has an arcuate cross-sectional shape protruding downward.

  The second conductor 15 is a metal elongated plate-like member, and is provided inside the first ground electrode support portion 21 by passing through the second through hole 55. One end of the second conductor 15 is in contact with the ground electrode 12, and the other end protrudes from the outer surface 61 of the side surface portion 24. A portion of the second conductor 15 that protrudes outward from the outer surface 61 of the side surface 24 is a second discharge unit side contact 62 that contacts a second main body side contact 65 provided in the air conditioner main body 3 to be described later. It has become. When the streamer discharge unit 6 is attached to the air conditioner main body 3, the second discharge unit side contact 62 comes into contact with the second main body side contact 65 to electrically connect the second main body side contact 65 and the ground electrode 12. Connecting. The second discharge unit side contact 62 is disposed at a distance from the first discharge unit side contact 60 in the front-rear direction, that is, in the direction in which the streamer discharge unit 6 is inserted and removed. The second discharge unit side contact 62 is disposed on the front side. Note that the above-described second protection part 59 protrudes slightly outward from the tip of the second discharge unit side contact 62. The second discharge unit side contact 62 is located above the second protection part 59, and the lower surface of the second discharge unit side contact 62 is in contact with the upper surface of the second protection part 59. Further, the upper surface of the second discharge unit side contact 62 has an upward arc-shaped cross section (see FIGS. 7 and 11).

<Configuration of Discharge Unit Housing B>
Next, the structure of the discharge unit accommodating part B of the air conditioner main body 3 will be described. As shown in FIG. 9, the discharge unit accommodating portion B is a hole having a rectangular cross-sectional shape that is recessed rearward from the front surface of the air conditioner body 3, and the streamer discharge unit 6 is inserted and accommodated therein. As shown in FIG. 10, a first main body side contact 64, a second main body side contact 65, and a rail portion 63 are formed on the inner wall surface of the discharge unit housing portion B.

[First Body Side Contact 64 and Second Body Side Contact 65]
The first main body side contact 64 is a contact that contacts the first discharge unit side contact 60, and the air conditioner main body 3 is connected to the streamer from the power supply circuit via the first main body side contact 64 and the first discharge unit side contact 60. A discharge voltage is supplied to the discharge unit 6. The streamer discharge unit 6 is supplied with power of 600 V or more and less than 1 A. The first main body side contact 64 is formed by bending an elongated metal plate, and is attached to the upper surface of the first fixing portion 66 protruding from the inner wall surface of the discharge unit housing portion B. The first main body side contact 64 is parallel to the front-rear direction and is a straight portion 67 fixed to the first fixing portion 66, and a first protrusion having a convex shape that is folded back at the front end of the straight portion 67 and has an upward convex shape. And a curved portion 68. The tip end of the first convex curved portion 68 is not fixed and is released, and the first main body side contact 64 is elastically deformable.

  The second main body side contact 65 is a contact that contacts the second discharge unit side contact 62, and is air conditioned with the ground electrode 12 of the streamer discharge unit 6 via the second main body side contact 65 and the second discharge unit side contact 62. The ground side of the power supply circuit of the machine body 3 is electrically connected. The second main body side contact 65 is disposed at a distance from the first main body side contact 64 in the front-rear direction. The second main body side contact 65 is formed by bending an elongated metal plate, and is attached to the lower surface of the second fixing portion 69 protruding from the inner wall surface of the discharge unit housing portion B. The second body-side contact 65 is parallel to the front-rear direction and is fixed to the second fixing portion 69, and a second protrusion having a downwardly convex shape folded back at the front end of the linear portion 70. And a curved portion 71. The distal end of the second convex curved portion 71 is not fixed and is released, and the second main body side contact 65 can be elastically deformed.

[Rail part 63]
The rail portion 63 projects laterally from the inner wall surface (the left inner surface in FIG. 9) of the discharge unit housing portion B, and is provided along the front-rear direction. The rail part 63 has an upper rail part 72 and a lower rail part 73. As shown in FIG. 10, the upper rail portion 72 is provided above the first main body side contact 64 and the second main body side contact 65, and when the streamer discharge unit 6 is inserted into the discharge unit housing portion B, and When it is pulled out from the discharge unit housing part B, it contacts the first protection part 58 and guides the first protection part 58. The lower rail portion 73 is provided below the first main body side contact 64 and the second main body side contact 65, and is pulled out when the streamer discharge unit 6 is inserted into the discharge unit housing portion B and from the discharge unit housing portion B. In this case, the second protective part 59 is guided in contact with the second protective part 59. Most of the upper rail portion 72 and the lower rail portion 73 are provided in parallel in the front-rear direction, and are configured to guide the streamer discharge unit 6 in the front-rear direction. 73 and the front end portion are bent so that the distance in the vertical direction between the upper rail portion 72 and the lower rail portion 73 increases toward the front side, and the streamer discharge unit 6 is easily inserted.

  Note that an opening 74 is provided at the rear end of the discharge unit housing portion B through which the air that is branched from the main flow after passing through the plasma catalyst filter 44 and supplied to the streamer discharge unit 6 passes. In addition, an opening 75 communicating with a duct connected to the upstream side of the prefilter 41 is provided on the lower surface of the discharge unit housing portion B, and the air containing active species generated in the streamer discharge unit 6 is formed in the opening 75. And supplied to the upstream side of the pre-filter 41.

<Mounting the streamer discharge unit 6 to the air conditioner body 3>
Next, the operation when the streamer discharge unit 6 is attached to the air conditioner body 3 will be described mainly based on FIG. In FIG. 10, for the sake of easy understanding, only the first protection unit 58, the first discharge unit side contact 60, the second protection unit 59, and the second discharge unit side contact 62 of the streamer discharge unit 6 are illustrated. Other parts are omitted.

  When the streamer discharge unit 6 is inserted into the discharge unit accommodating portion B, first, the first protection portion 58 and the first discharge unit side contact 60 of the streamer discharge unit 6 are located between the upper rail portion 72 and the second fixing portion 69. The road is guided by the upper rail portion 72 and proceeds backward. The distance between the upper rail portion 72 and the first convex curved portion 68 of the first main body side contact 64 is the thickness of the first protective portion 58 and the first discharge unit side contact 60 (here, the vertical dimension). Therefore, the first protection unit 58 and the first discharge unit side contact 60 are further moved backward, so that the first discharge unit side contact 60 and the first convex curved portion 68 come into contact with each other. And if the 1st protection part 58 and the 1st discharge unit side contact 60 move further back, the 1st discharge unit side contact 60 will slide with respect to the 1st convex curve part 68, and the 1st convex curve The portion 68 is pushed down to be elastically deformed. When the first discharge unit side contact 60 advances to a position where it contacts the apex of the first convex curved portion 68, a part of the support member 13 of the streamer discharge unit 6 is a stopper (not shown) on the air conditioner body 3 side. The rearward movement is restricted in contact with.

  When the first protection part 58 and the first discharge unit side contact 60 approach the first main body side contact 64, the second protection part 59 is simultaneously guided by the lower rail part 73, and the second protection part 59 and The second discharge unit side contact 62 approaches the second main body side contact 65. The front-rear direction distance between the apex of the first main body side contact 64 and the apex of the second main body side contact 65 is substantially the same as the distance between the first discharge unit side contact 60 and the second discharge unit side contact 62. The second discharge unit side contact 62 is the second convex curved portion 71 of the second main body side contact 65 almost simultaneously with the contact of the first discharge unit side contact 60 with the first convex curved portion 68 of the first main body side contact 64. To touch. Then, the second discharge unit side contact 62 slides with respect to the second convex curved portion 71 and pushes the second convex curved portion 71 upward to be elastically deformed so that the vertex of the second convex curved portion 71 is reached. Proceed to the position where it touches.

  Thus, in the state in which the streamer discharge unit 6 is accommodated in the discharge unit accommodating portion B, the first discharge unit side contact 60 pushes down the first body side contact 64 and elastically deforms it. Reference numeral 64 is in pressure contact with the first discharge unit side contact 60. Similarly, the second main body side contact 65 is in pressure contact with the second discharge unit side contact 62. Furthermore, since the first discharge unit side contact 60 has an arcuate cross section that protrudes downward as described above, it is in line contact with the first main body side contact 64. Similarly, the second discharge unit side contact 62 is in line contact with the second main body side contact 65.

  As described above, the streamer discharge unit 6 is accommodated in the discharge unit accommodating portion B and attached to the air conditioner body 3. As a result, a discharge voltage is supplied to the streamer discharge unit 6 to cause streamer discharge.

<Air cleaning action by the air conditioner 1>
The air conditioner 1 cleans air by removing foreign substances contained in indoor air sucked from the suction port 5 from the air in the various filters described above, and blows out the purified air from the blowout port. . The cleaning action by the above-described streamer discharge unit 6 is one of them. Hereinafter, the air cleaning effect | action by the air conditioner 1 is demonstrated based on FIG.

  The indoor air sucked from the suction port 5 first passes through the prefilter 41. At this time, relatively large dust and dust are removed from the air. In addition, the action of the photocatalyst and catechin contained in the prefilter 41 suppresses the growth of fungi and viruses such as fungi and bacteria contained in dust attached to the prefilter 41, and inactivates the virus.

  The air flow that has passed through the pre-filter 41 is sent to the plasma ionization unit 42, and dust contained in the air flow that passes through the plasma ionization unit 42 is charged with a positive charge.

  Next, when the air flow passes through the photocatalytic filter 43, dust or the like charged when passing through the plasma ionization unit 42 is adsorbed by the electrostatic filter 45. Further, dust or the like that has passed through the electrostatic filter 45 is adsorbed by the titanium apatite-carrying filter. At this time, the titanium apatite has a photocatalytic function activated by the active species supplied from the streamer discharge unit 6, and inactivates or kills viruses, molds, bacteria, and the like.

  The air flow that has passed through the photocatalytic filter 43 passes through the plasma catalytic filter 44. In the plasma catalyst filter 44, viruses and bacteria in the air that have not been adsorbed by the photocatalyst filter 43 are adsorbed, and the bacteria and viruses are killed or inactivated by titanium dioxide activated by active species.

  The airflow that has passed through the plasma catalyst filter 44 is blown out into the room from the blowout opening.

  A part of the air that has passed through the plasma catalyst filter 44 is supplied to the streamer discharge unit 6. In the streamer discharge unit 6, low temperature plasma is generated in the discharge field by streamer discharge, and the active species are released into the air flow. The air that has passed through the streamer discharge unit 6 is supplied to the upstream side of the prefilter 41 and conveys the active species to the upstream side of the prefilter 41.

<Characteristics of air conditioner 1>
(1)
In the air conditioner 1, the first conductor 14 is provided inside the first discharge electrode support portion 19, and electrically connects the discharge electrode 11 and the first main body side contact 64. The second conductor 15 is provided inside the first ground electrode support portion 21 and electrically connects the ground electrode 12 and the second main body side contact 65. For this reason, the insulation between the 1st discharge electrode support part 19 and the 1st ground electrode support part 21 is improving. The first discharge electrode support 19, the second discharge electrode support 20, the first ground electrode support 21, and the second ground electrode support 22 among the first discharge electrode support 19 and the first ground electrode support 21 are provided with a first conductor 14 and a second conductor 15, and the first conductor 14 and the second conductor 15 are arranged so as to be separated as much as possible. For this reason, the insulation is further improved. Accordingly, in order to increase the creepage distance, the first discharge electrode support part 19, the second discharge electrode support part 20, the first ground electrode support part 21, and the second ground electrode support part 22 need to have complicated shapes. The boss shape can be made simple as described above.

  Further, since the first conductor 14 is provided inside the first discharge electrode support portion 19 and the second conductor 15 is provided in the first ground electrode support portion 21, leakage current is generated from the middle of the support member 13. Is prevented.

(2)
In the air conditioner 1, as described above, the first discharge electrode support portion 19, the second discharge electrode support portion 20, the first ground electrode support portion 21, and the second ground electrode support portion 22 are made simple shapes. Therefore, the streamer discharge unit 6 can be reduced in size.

(3)
In the air conditioner 1, the first discharge electrode support portion 19, the second discharge electrode support portion 20, the first ground electrode support portion 21, and the second ground electrode support portion 22 are all the same from the side surface portion 24 of the main body portion 18. It extends in the direction and extends in a direction parallel to the separation direction of the discharge electrode 11 and the ground electrode 12. For this reason, the precision of the separation distance D1 between the discharge electrode 11 and the ground electrode 12 can be improved.

(4)
In the air conditioner 1, the insulation is improved as described above, and the first discharge electrode support portion 19, the second discharge electrode support portion 20, the first ground electrode support portion 21, and the second ground electrode support are supported. The part 22 has a simple boss shape. Therefore, the discharge electrode 11 and the ground electrode 12 can be stably supported, and the discharge electrode 11 and the ground electrode 12 can be easily fixed to the support member 13 by screwing. Thereby, the assembly property of the streamer discharge unit 6 is improved.

(5)
In the air conditioner 1, the first discharge unit side contact 60 and the first body side contact 64 rub against each other each time the mounting operation of the streamer discharge unit 6 to the air conditioner body 3 is repeated, and the second discharge unit The side contact 62 and the second main body side contact 65 rub against each other. Thereby, the surface of each contact can be automatically cleaned, and a contact can be made to contact stably.

  Further, the contact between the first discharge unit side contact 60 and the first main body side contact 64 and the contact between the second discharge unit side contact 62 and the second main body side contact 65 are point contacts, so that the contacts are slid. Even if it is repeated, generation of galling can be suppressed. For this reason, when the streamer discharge unit 6 is attached or removed, it is possible to suppress the occurrence of variations in operational feeling due to galling.

  Further, the contact between the first discharge unit side contact 60 and the first body side contact 64 and the contact between the second discharge unit side contact 62 and the second body side contact 65 are point contacts. Since the deformed portions of the contact 64 and the second main body side contact 65 are large, and the contacts are in pressure contact with each other, the contacts can be stably brought into contact with each other.

<Other embodiments>
(A)
The power supplied to the streamer discharge unit 6 is not limited to the above, and may be any power that is necessary for the occurrence of streamer discharge. For example, electric power of 5000 V or more and less than 1 mA may be supplied.

(B)
In the above embodiment, the first main body side contact 64 and the second main body side contact 65 are elastically deformable, but the first discharge unit side contact 60 and the second discharge unit side contact 62 are elastic. The shape may be deformable, and both the first main body side contact 64 and the second main body side contact 65 and the first discharge unit side contact 60 and the second discharge unit side contact 62 are elastically deformable. It may be a shape.

(C)
In the above embodiment, the first main body side contact 64 and the second main body side contact 65, the first discharge unit side contact 60 and the second discharge unit side contact 62 are disposed at a distance in the front-rear direction. The arrangement of these contacts is not limited to the above.

(D)
In the above embodiment, the first protective part 58 and the second protective part 59 have a plate shape, but the shape of the first protective part 58 and the second protective part 59 is not limited to this, and the user Any shape can be used as long as it is difficult to touch.

(E)
In said embodiment, although the air conditioner 1 is a floor-standing type air cleaner, this invention may be applied to the air cleaner of another installation form.

  Also. The present invention may be applied to an air conditioner having an air cleaning function as well as an air conditioning function, not limited to an air cleaning dedicated machine.

  INDUSTRIAL APPLICABILITY The present invention has an effect of suppressing the complexity of the shape of the support member that supports the discharge electrode and the ground electrode, and is useful as a discharge unit for an air conditioner.

The external appearance perspective view of an air conditioner. The schematic diagram which shows the internal structure of an air conditioner. The external appearance perspective view of the air conditioner from which the front panel was removed. The external appearance perspective view of a streamer discharge unit. The top view of a streamer discharge unit. The right view of a streamer discharge unit. The left view of a streamer discharge unit. The external appearance perspective view of a supporting member. The enlarged view near opening of a discharge unit accommodating part. Side surface sectional drawing of a discharge unit accommodating part. The enlarged view of the 2nd main body side contact vicinity vicinity.

1 Air conditioner 3 Air conditioner body 6 Streamer discharge unit (discharge unit)
DESCRIPTION OF SYMBOLS 11 Discharge electrode 12 Ground electrode 13 Support member 14 1st conductor 15 2nd conductor 18 Main-body part 19 1st discharge electrode support part 20 2nd discharge electrode support part 21 1st ground electrode support part 22 2nd ground electrode support part 64 First body side contact 65 Second body side contact

Claims (6)

A discharge unit attached to an air conditioner body (3) for purifying air,
A discharge electrode (11) and a ground electrode (12) that generate plasma by applying a discharge voltage;
A resin support member (13) having a first discharge electrode support (19) for supporting the discharge electrode (11) and a first ground electrode support (21) for supporting the ground electrode (12); ,
A first main body side contact (64) provided on the air conditioner main body (3) side and electrically connected to the discharge electrode (11) is provided inside the first discharge electrode support portion (19). A first conductor (14);
A second body side contact (65) provided in the first ground electrode support (21) and provided on the air conditioner body (3) side is electrically connected to the ground electrode (12). A second conductor (15);
Equipped with a,
The support member (13) further includes a main body (18) facing the discharge electrode (11),
The first discharge electrode support portion (19) has a shape extending linearly from the main body portion (18) toward the discharge electrode (11).
The discharge unit (6) of the air conditioner (1).   A discharge unit attached to an air conditioner body (3) for purifying air,
  A discharge electrode (11) and a ground electrode (12) that generate plasma by applying a discharge voltage;
  A resin support member (13) having a first discharge electrode support (19) for supporting the discharge electrode (11) and a first ground electrode support (21) for supporting the ground electrode (12); ,
  A first main body side contact (64) provided on the air conditioner main body (3) side and electrically connected to the discharge electrode (11) is provided inside the first discharge electrode support portion (19). A first conductor (14);
  A second body side contact (65) provided in the first ground electrode support (21) and provided on the air conditioner body (3) side is electrically connected to the ground electrode (12). A second conductor (15);
With
  The support member (13) further includes a main body (18) facing the ground electrode (12),
  The first ground electrode support portion (21) has a shape extending linearly from the main body portion (18) toward the ground electrode (12).
The discharge unit (6) of the air conditioner (1). The first discharge electrode support part (19) and the first ground electrode support part (21) have a linear shape extending in the same direction from one surface of the main body part (18).
The discharge unit (6) of the air conditioner (1) according to claim 1 or 2 . The first discharge electrode support part (19) and the first ground electrode support part (21) extend in a direction parallel to the separation direction of the discharge electrode (11) and the ground electrode (12).
The discharge unit (6) of the air conditioner (1) according to claim 3 . The support member (13) further includes a second discharge electrode support portion (20) for supporting the discharge electrode (11) and a second ground electrode support portion (22) for supporting the ground electrode (12). And
The distance between the first discharge electrode support part (19) and the first ground electrode support part (21) is the distance between the first discharge electrode support part (19) and the second ground electrode support part (22). And greater than the distance between the first ground electrode support (21) and the second discharge electrode support (20).
The discharge unit (6) of the air conditioner (1) according to any one of claims 1 to 4 . A discharge unit (6) according to any of claims 1 to 5 ;
An air conditioner body (3) to which the discharge unit (6) is attached and blows out air that has passed through the discharge unit (6) into a room;
An air conditioner (1) comprising:

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