JP6913480B2 - Air conditioner - Google Patents

Description

The present invention relates to an air conditioner.

A refrigerating cycle device that circulates a refrigerant in a refrigerating cycle (heat pump cycle) using a refrigerant circuit is widely used, for example, as an air conditioner.
The air conditioner includes a pair type air conditioner in which one outdoor unit is combined with one indoor unit and a multi-type air conditioner in which one outdoor unit is combined with a plurality of indoor units. Pair-type air conditioners are often used in ordinary households and relatively small stores, and multi-type air conditioners are often used in buildings.

An indoor unit that can be used for these is described in, for example, Patent Document 1.
The indoor unit (indoor unit) described in Patent Document 1 has a unit main body that houses a heat exchanger and a blower arranged so as to face the heat exchanger.
In addition, an electric component box (electric component box) is arranged on the side of the heat exchanger and the blower in the main body of the unit.
Then, the electric component box is attached to the component box main body in which the side surface portion on the heat exchanger and blower side opens and the side surface portion facing the side opening portion of the component box main body, and the electric control component is mounted. It includes a control board and a side lid that closes the side opening of the component box body so as to be openable and closable.

Japanese Unexamined Patent Publication No. 9-60918

As described above, the electrical component box of the indoor unit described in Patent Document 1 includes a side lid that opens and closes the side opening of the parts box body so as to be openable and closable. That is, this electrical component box has a structure in which the side lid is moved sideways from the parts box body to open and close.

Since the indoor unit is equipped with a heat exchanger and a blower, the electric component box is often placed at the right end or the left end of the indoor unit. Therefore, when the indoor unit is installed close to the corner of the room, it becomes difficult to open and close the electric component box, and there is a problem that maintainability is poor.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an air conditioner that can easily open and close the lid of an electric component box even if the space on the side of the indoor unit is narrow.

The air conditioner according to the present invention that solves the above problems includes a heat exchanger, a blower, and an electric component box in an indoor unit housing base, and the electric component box is a substrate made of an insulating material for fixing an electrical substrate. The heat exchanger is provided with a bottomed box-shaped electric product case having a support portion and an opening, and a sheet metal lid covering the opening of the electric product case. and is arranged adjacent to the side of the blower, have a closing mechanism for opening and closing the opening portion by sliding said lid, said opening and closing mechanism, by bending a portion of the lid A pair of bent lids that are in contact with the wall of the electrical case and a part of the electrical case that is bent and slid are abutted against each other. are anda case bent portion for positioning the end portion of the cover bent part, it was decided to have the opening portion is bent in a direction away from the electrical component case.
Further, the air conditioner according to the present invention includes a heat exchanger, a blower, and an electric component box in the indoor unit housing base, and the electric component box has a substrate support portion made of an insulating material for fixing the electrical substrate. It has a bottomed box-shaped electric product case that is attached and has an opening, and a sheet metal lid that covers the opening of the electric product case, and also has the heat exchanger and the blower. It has an opening / closing mechanism that opens / closes the opening by sliding the lid, and a part of the substrate support portion is exposed from the electric product case. A part of the exposed substrate support portion has a fixing claw for fixing the lid body, and the lid body is fixed by the fixing claw when the opening is closed. It was decided to have a fixed part.

According to the present invention, it is possible to provide an air conditioner in which the lid of an electric component box can be easily opened and closed even if the space on the side of the indoor unit is narrow.

It is a schematic perspective view which shows the state which the cover body of the air conditioner (indoor unit) which concerns on this embodiment is removed, and the inside of an indoor unit is exposed. It is a figure explaining the electric article box, and is a partial schematic perspective view which showed the state which the cover body is attached to the electric article case. FIG. 2 is an enlarged view of a main part showing the positional relationship between the lid bent portion, the opening portion, the close contact bent portion, and the case bent portion in FIG. It is an enlarged view of the main part which showed the positional relationship of the fixed claw and the fixed part in FIG. It is a partial schematic perspective view which shows the state which the cover body is completely attached to an electric product case. It is a partial schematic perspective view of a state in which the fixed portion in FIG. 5 is fixed to the fixed claw as viewed from the front. It is a partial schematic perspective view of how the fixed portion in FIG. 5 is fixed to the fixed claw as viewed from lines VII-VII of FIG. It is a schematic cross-sectional view which shows the modification of the opening and closing mechanism. It is a schematic cross-sectional view which shows the modification of the opening and closing mechanism.

Hereinafter, an embodiment of the air conditioner according to the present invention will be described in detail with reference to the drawings as appropriate.
An air conditioner generally includes an indoor unit, an outdoor unit, and a remote controller. The indoor unit and the outdoor unit are connected by a refrigerant pipe, and the room in which the indoor unit is installed is air-conditioned by a well-known refrigerant cycle. Further, the indoor unit and the outdoor unit are designed to transmit and receive information to and from each other via a communication cable.

The remote controller is operated by the user and transmits an infrared signal to the remote controller receiver of the indoor unit. The contents of the signal are commands such as an operation request, a change of a set temperature, a timer, a change of an operation mode, and a stop request. The air conditioner performs processing on the electrical board based on these signals, and performs air conditioning operation such as cooling mode, heating mode, and dehumidification mode.

FIG. 1 is a schematic perspective view showing a state in which the cover body (not shown) of the air conditioner (indoor unit A) according to the present embodiment is removed to expose the inside of the indoor unit A.
As shown in FIG. 1, the indoor unit A includes a heat exchanger 2, a blower 3, and an electric component box 4 inside the indoor unit housing base 1. In the example shown in FIG. 1, the heat exchanger 2 and the blower 3 are installed so that the longitudinal direction is the left-right direction of the indoor unit A. The electrical component box 4 is arranged on the side of the heat exchanger 2 and the blower 3, that is, adjacent to the longitudinal ends of the heat exchanger 2 and the blower 3. In FIG. 1, the electric component box 4 is arranged at the right end of the indoor unit A. The electric product box 4 has a sheet metal electric product case 8 (see FIG. 2) and a sheet metal lid 5 (see FIG. 2). The electrical case 8 and the lid 5 can be made of any metal material.

Here, FIG. 2 is a diagram for explaining the electrical component box 4, and is a partially schematic perspective view showing a state in which the lid 5 is attached to the electrical component case 8.
The electrical product case 8 is a bottomed box-shaped member having an opening 81. A substrate support portion 7 made of an insulating material for fixing the electrical substrate 6 is attached to the electrical product case 8.
The lid 5 is a member that covers the opening 81 of the electrical product case 8.
The electrical component box 4 has an opening / closing mechanism 9 that opens / closes the opening 81 by sliding the lid 5.

Since the electrical component box 4 has an opening / closing mechanism 9, the lid 5 can be slid and attached / detached. Therefore, in the present embodiment, the lid 5 of the electric component box 4 can be easily opened and closed even if the side space is narrow, as in the case where the indoor unit A is installed close to the indoor corner. ing. As a result, the indoor unit A is improved in maintainability.

Here, as an example of the opening / closing mechanism 9 in the present embodiment, as shown in FIG. 2, a mechanism having a pair of lid body bent portions 51 and 52 and a case bent portion 12 can be preferably applied.
The lid body bent portions 51 and 52 are arranged so as to face each other by bending a part of the lid body 5, and are in contact with the wall portion 82 of the electric product case 8.
The case bent portion 12 is formed in a substantially L-shape by bending a part of the back plate 83 of the electric product case 8 forward, so that the lid body 5 slid backward is abutted against the case bent portion 12. .. Therefore, the case bent portion 12 can position (fix) the slid lid body 5.

It is preferable that the case bending portion 12 has a rising angle θ (see the notched portion in FIG. 3) from the wall portion 82 of the electrical product case 8 larger than a right angle. In this way, it is possible to reduce the possibility that the slid lid 5 comes into contact with a part of the case bent portion 12 at a position before reaching a predetermined position and hinders the slide of the lid 5.

As described above, since the electric component box 4 of the indoor unit A according to the present embodiment has the opening / closing mechanism 9 having the pair of lid body bent portions 51 and 52 and the case bent portion 12. The lid 5 can be slid and attached / detached more reliably and easily. Therefore, the indoor unit A having such an opening / closing mechanism 9 can easily open / close the lid 5 of the electric component box 4 even if the space on the side is narrow. Therefore, maintenance and the like are easier to perform.

Here, FIG. 3 is an enlarged view of a main part showing the positional relationship between the lid body bent portions 51, 52, the opening portions 53, 54, the close contact bending portion 11, and the case bent portion 12 in FIG. FIG. 3 is a diagram in which a part of the member is cut out so that the case bent portion 12 and the angle θ can be easily seen.
As shown in FIGS. 2 and 3, the lid body 5 is preferably formed so that the lid body bent portion 51 is arranged outside the electrical product case 8. In this way, the lid 5 can be easily slid. Further, it is preferable that the lid body 5 has a close-contact bent portion 11 formed by folding back a portion that comes into contact with the case bent portion 12. Since the edge is rounded when the close contact bending portion 11 is formed, it is possible to reduce the risk of damaging the electrical wiring or the like when the lid body 5 is slid. Further, since the close contact bending portion 11 is formed by folding back a part of the lid body 5, the thickness is increased. Therefore, since the area of contact with the case bent portion 12 increases, the adhesion between the close contact bent portion 11 and the case bent portion 12 becomes high, which is preferable. Further, by having the close contact bending portion 11, the strength is also increased, so that the handleability is improved.

Further, as shown in FIGS. 2 and 3, the rear ends of the lid body bent portions 51 and 52 are provided with opening portions 53 and 54 bent in a direction away from the electrical product case 8. Is preferable. In this way, when the lid body bent portions 51 and 52 are brought into contact with the wall portion 82 of the electric product case 8 in order to attach the lid body 5 to the opening 81 of the electric product case 8, the lid body is bent. The portions 51 and 52 can make the wall portion 82 of the electrical product case 8 less likely to be damaged. At that time, it is also possible to facilitate guiding the lid body bent portions 51 and 52.
Regarding FIGS. 2 and 3, when the electric product case 8 and the lid body 5 are viewed from below, the electric product case 8, the lid body bent portion 52 (not shown in FIG. 3), and the opening portion 54 (FIG. 3). 3), the close contact bending portion 11 and the case bending portion 12 have the same positional relationship as in FIGS. 2 and 3.

FIG. 4 is an enlarged view of a main part showing the positional relationship between the fixed claw 13 and the fixed portion 15 in FIG.
As shown in FIG. 4, in the present embodiment, a part of the substrate support portion 7 made of the insulating material is exposed from the electric product case 8, and the lid body 5 is exposed in a part of the exposed substrate support portion 7. It is preferable to have a fixing claw 13 for fixing. The lid body 5 preferably has a fixed portion 15 that is fixed by the fixing claw 13 when the opening 81 is closed. In this way, by fixing the fixing claw 13 of the substrate support portion 7 to the fixed portion 15 of the lid body 5, the state in which the opening 81 is closed by the lid body 5 can be maintained. In the present embodiment, as shown in FIG. 2 and the like, a part of the substrate support portion 7 is exposed from the electrical product case 8, and the exposed portion is provided with the fixing claw 13 as described above. Therefore, it is easy to remove the fixed portion 15 from the fixing claw 13.
Here, the fixed claw 13 can be a convex portion having a slight protrusion from the front to the rear of the indoor unit A, and the fixed portion 15 can be a rectangular shape or a circle capable of locking the fixed claw 13. It can be a through hole or a recess having an arbitrary shape such as a shape. This is preferable because the fixing claw 13 can be easily attached and detached, and the state in which the opening 81 is closed by the lid 5 can be more reliably maintained.

Further, when the fixed claw 13 and the fixed portion 15 are provided, it is preferable that the external portion 14 for bending the fixed claw 13 and removing it from the fixed portion 15 is integrally formed with the fixed claw 13. In this way, it becomes easier to remove the fixed portion 15 from the fixing claw 13.

Next, a method of attaching / detaching the lid 5 to / from the opening 81 of the electric product case 8 of the indoor unit A will be described with reference to a preferred embodiment.
When the lid 5 is attached to the opening 81 of the electrical case 8, the lid 5 has a front side (front side shown in FIG. 2), and as shown in FIG. 2, the lid bent portions 51 and 52 have the lids 51 and 52, respectively. They are brought close to each other so as to be arranged on the outside of the wall portion 82 of the electric product case 8. At this time, as shown in FIG. 3, if the lid body bent portions 51 and 52 are provided with the opening portions 53 and 54, respectively, the lid bent portions 51 and 52 damage the wall portion 82 of the electric product case 8. It is preferable because it can be made difficult and the lid body bent portions 51 and 52 can be easily guided.
Next, the close contact bending portion 11 is slid until it hits the inside of the case bending portion 12.

Then, with the close contact bending portion 11 abutting against the case bending portion 12, the front side of the lid 5 is brought close to the electrical product case 8 to which the substrate support 7 is attached and closed, and the fixed portion 15 is closed. It is locked to the fixing claw 13 and fixed.
FIG. 5 is a partially schematic perspective view showing a state in which the lid 5 is completely attached to the electrical case 8 as described above. As shown in FIG. 5, in the lid body 5, the lid body bent portions 51 and 52 are arranged outside the wall portion 82 of the electric product case 8. Further, in the lid body 5, the close contact bending portion 11 is arranged inside the case bending portion 12. Further, the fixed portion 15 of the lid body 5 is locked to the fixing claw 13 of the substrate support 7 and arranged inside the fixing claw 13.

Here, FIG. 6 is a partially schematic perspective view of the fixed portion 15 in FIG. 5 fixed to the fixing claw 13 as viewed from the front. FIG. 7 is a partially schematic perspective view of the fixed portion 15 in FIG. 5 fixed to the fixing claw 13 as viewed from lines VII-VII of FIG.
As shown in FIGS. 6 and 7, when removing the lid 5, the lid 5 is moved away from the electrical case 8 while pulling the external surface 14 toward the front, and the fixed portion 15 is moved from the fixing claw 13. After removing it, slide the lid 5 toward you.

As described above, the air conditioner (indoor unit A) can open and close the electric component box 4 by sliding the lid 5 even if the space on the side is narrow. Therefore, in the air conditioner (indoor unit A), the maintainability of the air conditioner is improved.
Further, since the lid body bent portions 51 and 52 and the case bent portion 12 increase the airtightness of the electrical component box 4, the influence of ignition from the electrical board 6 on the peripheral portion can be reduced, and the product can be manufactured. Improves safety.

Further, in the lid body 5, the lid body bent portions 51 and 52 are arranged outside the wall portion 82 of the electric product case 8 to provide the close contact bending portion 11. Therefore, when the lid 5 is slid, the electrical wiring does not come into direct contact with the cut portion of the sheet metal (end face of the lid 5), there is no concern that the insulating coating of the electrical wiring will be broken, and the risk to the electrical wiring due to sheet metal processing is reduced. ing.
Further, by providing the opening portions 53 and 54 in the lid body 5 and making the rising angle θ from the wall portion 82 of the case bent portion 12 of the electric product case 8 larger than the right angle, the lid body 5 can be easily slid. It can be naturally attached to the electrical case 8 to improve workability.

Further, the fixing claw 13 provided inside the substrate support 7 and the fixed portion 15 of the lid 5 realize the fixing of the lid 5 laterally and in the sliding direction by a single fixing method. Since the fixing method described above can be easily released by pulling the external 14 toward the front, the structure is simple and the workability is high.

In the substrate support 7 of the present embodiment, as shown in FIGS. 4 to 6, the fixing claw 13, the external surface 14 and the fixed portion 15 are exposed from the electrical case 8, so that the operator can easily see them. It has become. Therefore, it is easy to determine the place and method to be operated when removing the lid body 5.

Further, in the structure in which the fixed portion 15 is arranged inside the substrate support 7, the fixed portion 15 is connected to the fixing claw 13 even when a force is applied from the front side during transportation of the air conditioner or the like. It is hard to come off. That is, there is also an effect of improving the strength when a force is applied from the front side of the air conditioner.

The air conditioner according to the present invention has been described above in terms of embodiments, but this has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to those having all the described configurations. is not it. Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration. In addition, the following modification can be used.

8 and 9 are schematic cross-sectional views showing a modified example of the opening / closing mechanism 9.
As shown in FIG. 8, the opening / closing mechanism 9 can be slid so that the lid body bent portions 51a and 52a of the lid body 5 abut against the inside of the wall portion 82 of the electrical product case 8.
Further, as shown in FIG. 9, the opening / closing mechanism 9 has a sandwiching structure in which each of the lid body bent portions 51b and 52b of the lid body 5 can slidably sandwich the wall portion 82 of the electrical product case 8. Can be done. That is, the wall portion 82 of the electric product case 8 can be sandwiched and slid by the sandwiching structure of the lid body bent portions 51b and 52b of the lid body 5.
In any of the embodiments shown in FIGS. 8 and 9, the lid 5 can be slid and attached to and detached from the electrical case 8. Therefore, in the indoor unit A (see FIG. 1 and the like), the lid 5 of the electric component box 4 can be opened and closed even if the side space is narrow, as in the case where the indoor unit A is installed close to the indoor corner. It will be easy to do. As a result, the indoor unit A is improved in maintainability.

A Indoor unit (air conditioner)
1 Indoor unit housing base 2 Heat exchanger 3 Blower 4 Electrical product box 5 Lid body 51, 52 Closure bent part 53, 54 Opening part 6 Electrical board 7 Board support part 8 Electrical product case 81 Opening 82 Wall part 9 Opening and closing mechanism 11 Close contact bending part 12 Case bending part 13 Fixing claw 14 Removing outside 15 Fixed part

Claims (8)

Equipped with a heat exchanger, blower, and electrical equipment box inside the indoor unit housing base
The electrical product box is attached with a substrate support portion made of an insulating material for fixing the electrical equipment substrate, and has a bottomed box-shaped electric product case having an opening and an opening of the electrical product case. and having a sheet-metal lid for covering, and is arranged adjacent to the side of the heat exchanger and the blower, have a closing mechanism for opening and closing the opening portion by sliding said lid ,
The opening / closing mechanism
A pair of lid body bent portions that are formed by bending a part of the lid body and are arranged so as to face each other and that come into contact with the wall portion of the electrical product case.
It has a case bent portion, which is formed by bending a part of the electric product case, and the sliding lid body is abutted against and positioned.
An air conditioner ends of the cover bent part, characterized in that to have the opening portion is bent in a direction away from the electrical component case. Equipped with a heat exchanger, blower, and electrical equipment box inside the indoor unit housing base
The electrical product box is attached with a substrate support portion made of an insulating material for fixing the electrical equipment substrate, and has a bottomed box-shaped electric product case having an opening and an opening of the electrical product case. It has a sheet metal lid to cover, and is arranged adjacent to the heat exchanger and the blower, and has an opening / closing mechanism for opening and closing the opening by sliding the lid. ,
A part of the substrate support portion is exposed from the electrical product case, and the exposed portion of the substrate support portion has a fixing claw for fixing the lid body.
An air conditioner characterized in that the lid has a fixed portion to be fixed by the fixing claw when the opening is closed. In claim 2,
The opening / closing mechanism
A pair of lid body bent portions that are formed by bending a part of the lid body and are arranged so as to face each other and that come into contact with the wall portion of the electrical product case.
An air conditioner characterized by having a case bent portion in which a part of the electric product case is bent and a sliding lid body is abutted and positioned. In claim 1 or 3 ,
The lid is formed so that the bent portion of the lid is arranged outside the wall portion of the electric product case, and the portion that comes into contact with the bent portion of the case is folded back. An air conditioner characterized by having a close contact bending portion. In claim 3 ,
An air conditioner characterized in that an end portion of the lid body bent portion has an opening portion that is bent in a direction away from the electrical product case. In claim 1 or 3 ,
The case bent portion is an air conditioner characterized in that the rising angle from the wall portion of the electric product case is larger than a right angle. In claim 1 ,
A part of the substrate support portion is exposed from the electrical product case, and the exposed portion of the substrate support portion has a fixing claw for fixing the lid body.
An air conditioner characterized in that the lid has a fixed portion to be fixed by the fixing claw when the opening is closed. In claim 2 or 7,
An air conditioner characterized in that an external part for bending the fixing claw and removing it from the fixed portion is integrally formed with the fixing claw.

Images