JP4807445B2 - Outdoor unit - Google Patents

Description

The present invention relates to an outdoor unit, and more particularly to an outdoor unit including an opening cover disposed outside a casing.

On the side surface of the casing, there is provided an opening for routing the wiring connected to the electrical component housed in the casing from the inside of the casing to the outside. And the opening cover (closing valve cover) which covers an opening part is attached to the outer side of the side plate of a casing so that rainwater etc. may not penetrate | invade from the exterior of a casing through the said opening part (for example, patent document 1). reference).

JP 2002-61885 A

However, in the outdoor unit of an air conditioner described in Patent Document 1, since the upper end portion of the closing valve cover is engaged with the upper edge portion of the opening portion, the engagement portion and the electrical component (usually the opening portion) The electrical component is arranged near the part). Therefore, when the outdoor unit is washed with tap water or with a water pressure such as a typhoon, there is a risk that water may enter the electrical components inside the casing from the gap at the engagement portion between the closing valve cover and the side plate.

Therefore, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an outdoor unit capable of suppressing the ingress of water from the outside of the casing to the internal electrical components. And

An outdoor unit according to a first invention includes a casing having a bottom plate , a side plate, and a top plate, an electrical component housed in the casing, an opening formed in the side plate and opened near the electrical component,
An opening cover that is disposed outside the side plate and covers the opening, and the top plate is disposed to face the bottom plate.
A top surface portion and an edge portion extending downward from an end portion of the top surface portion, and an upper end portion of the opening cover includes an outer wall portion disposed outside the edge portion of the top plate, and an edge portion of the top plate. An inner wall portion disposed inside the inner wall portion and a recess provided between the outer wall portion and the inner wall portion are formed, and at the position above the opening portion, the edge of the top plate is the upper end of the opening cover. It is inserted into the recess formed in the section, and the upper portion than the opening of the side plate is disposed inside the inner wall portion.

In this outdoor unit,
(1) Since the edge of the top plate and the upper end of the opening cover are engaged at a position above the opening, when the opening cover is provided near the opening (for example, as in Patent Document 1, Compared to the case where the upper end portion of the closing valve cover is fitted to the upper edge portion of the opening portion, the distance between the engaging portion and the opening portion can be ensured. As a result, it is possible to increase the length of the inundation path from the outside of the casing to the internal electrical component, thereby reducing the momentum of the water that is infiltrated through the engaging portion and suppressing the flooding of the electrical component. Can do.
(2) Further, a meandering gap between the edge of the top plate and the upper end of the opening cover by inserting the edge of the top plate into a recess provided between the outer wall portion and the inner wall portion. Is formed. With the trap structure configured as described above, it is possible to effectively prevent water from entering the electrical component.
(3) Moreover, by arrange | positioning an upper part from the opening part of a side plate inside an inner wall part,
Since the upper part of the side plate functions as a waterproof wall that prevents water from entering the electrical component, it is possible to further prevent water from entering the electrical component.

An outdoor unit according to a second aspect of the present invention is the outdoor unit according to the first aspect of the present invention, wherein the opening of the side plate.
The upper part includes a flange portion disposed between the top surface portion of the top plate and the upper end of the inner wall portion.

In this outdoor unit, even when the water that has entered from the outside of the casing passes through the engagement portion between the edge of the top plate and the upper end of the opening cover, the side plate is disposed by the flange portion disposed above the inner wall portion. It is possible to prevent the water from getting over the upper side of the board and entering the inside of the side plate. That is, by adding a collar part, it is possible to further prevent water from entering the electrical component.

An outdoor unit according to a third aspect of the present invention is the outdoor unit according to the second aspect of the present invention, wherein the protruding tip end surface of the flange is close to or in contact with the edge of the top plate.

In this outdoor unit, there is substantially no gap formed between the flange of the side plate and the edge of the top plate, and water is immersed in the electrical components via the gap between the side plate and the top plate. Can be reliably deterred.

An outdoor unit according to a fourth aspect of the present invention is the outdoor unit according to the second or third aspect of the present invention .
The upper end surface is close to or in contact with the top surface portion of the top plate.
In this outdoor unit, there is substantially no gap formed between the flange of the side plate and the top surface of the top plate.
It is possible to reliably prevent water from entering the electrical components between the side plate collar and the top surface of the top plate.
it can.
An outdoor unit according to a fifth invention is the outdoor unit according to any one of the second to fourth inventions,
The lower end surface of the collar portion is close to or in contact with the upper end of the inner wall portion.
In this outdoor unit, there is a gap formed between the flange of the side plate and the upper end of the inner wall of the opening cover.
Substantially eliminated, water can be reliably immersed in the electrical components between the side plate flange and the upper end of the inner wall.
Can be deterred.

An outdoor unit according to a sixth invention is the outdoor unit according to any one of the first to fifth inventions,
The upper portion of the side plate is close to or in contact with the inner wall portion.
In this outdoor unit, the gap formed between the inner wall portion and the side plate is substantially eliminated, and it is possible to reliably prevent water from entering the electrical component between the inner wall portion of the opening cover and the upper portion of the side plate. can do.

An outdoor unit according to a seventh invention is the outdoor unit according to any one of the first to sixth inventions,
The recess is formed along the width direction of the opening cover.

In this outdoor unit, since it is possible to cover the entire width of the upper side of the opening, it is possible to suppress water from above the opening.

An outdoor unit according to an eighth invention is the outdoor unit according to any one of the first to seventh inventions,
A groove is formed on at least a part of the outer surface of the side plate and around the opening.

In this outdoor unit, water that has entered from the outside of the casing can be guided to a predetermined drainage location by this groove before the opening disposed around the electrical component.

An outdoor unit according to a ninth aspect of the present invention is the outdoor unit according to the eighth aspect of the present invention, wherein the groove includes a side groove that is disposed on the side of the opening and into which the side end of the opening cover is inserted.

In this outdoor unit, a meandering gap is formed between the side groove portion of the side plate and the side end portion of the opening cover by inserting the side end portion of the opening cover into the side groove portion of the side plate. With the trap structure configured in this way, it is possible to effectively prevent water from entering the electrical component on the side of the opening.

An outdoor unit according to a tenth aspect of the present invention is the outdoor unit according to the ninth aspect , wherein the side groove is formed along the height direction of the side plate.

In this outdoor unit, since it is possible to cover the entire width of the side of the opening, it is possible to suppress water from the side of the opening.

An outdoor unit according to an eleventh aspect of the invention is the outdoor unit according to the ninth or tenth aspect of the invention, wherein the side grooves are provided on both sides of the opening.

In this outdoor unit, it is possible to effectively prevent water from entering the electrical component on both sides of the opening.

An outdoor unit according to a twelfth aspect of the invention is the outdoor unit according to any of the eighth to eleventh aspects of the invention, wherein the groove includes an upper groove that is disposed above the opening and into which the upper end of the opening cover is inserted. .

In this outdoor unit, a meandering gap is formed between the upper groove portion of the side plate and the upper end portion of the opening cover by inserting the upper end portion of the opening cover into the upper groove portion of the side plate. With the trap structure configured in this way, it is possible to effectively prevent water from entering the electrical component above the opening.

An outdoor unit according to a thirteenth aspect is the outdoor unit according to the twelfth aspect , wherein the upper groove portion is
It is formed along the width direction of the side plate.

In this outdoor unit, since it is possible to cover the entire width of the upper side of the opening, it is possible to suppress water from above the opening.

  As described above, according to the present invention, the following effects can be obtained.

In the first invention,
(1) Since the edge of the top plate and the upper end of the opening cover are engaged at a position above the opening,
The distance between the engaging portion and the opening can be ensured as compared with the case where the attachment portion of the opening cover is provided in the vicinity of the opening. As a result, it is possible to increase the length of the inundation path from the outside of the casing to the internal electrical component, thereby reducing the momentum of the water that is infiltrated through the engaging portion and suppressing the flooding of the electrical component. Can do.
(2) Further, a meandering gap between the edge of the top plate and the upper end of the opening cover by inserting the edge of the top plate into a recess provided between the outer wall portion and the inner wall portion. Is formed. With the trap structure configured as described above, it is possible to effectively prevent water from entering the electrical component.
(3) In addition, the upper part from the opening of the side plates, by placing inside the engagement portion of the edge of the upper end portion of the opening cover and the top plate, upper plate disposed inside the inner wall portion Since the portion functions as a waterproof wall that prevents water from entering the electrical component, it is possible to further prevent water from entering the electrical component.

In addition, in the second invention, even when the water that has entered from the outside of the casing passes through the engaging portion between the edge of the top plate and the upper end of the opening cover, the collar portion disposed above the inner wall portion By
It is possible to prevent water from entering the inside of the side plate. That is, by adding a collar part, it is possible to further prevent water from entering the electrical component.

In the third invention, the gap formed between the flange of the side plate and the edge of the top plate is substantially eliminated, and the electrical component is interposed between the flange of the side plate and the edge of the top plate. It is possible to reliably prevent flooding.
In the fourth invention, the gap formed between the flange portion of the side plate and the top surface portion of the top plate is substantially reduced.
Eliminates and reliably prevents water from entering the electrical components between the side plate collar and top plate top surface.
be able to.
Moreover, in 5th invention, it forms between the collar part of a side plate, and the upper end of the inner wall part of an opening cover.
The gap is substantially eliminated, and water is immersed in the electrical parts through the gap between the side plate and the upper end of the inner wall.
Can be reliably deterred.

Further, in the sixth invention, a gap formed between the inner wall portion and the side plate is substantially eliminated,
It is possible to reliably prevent water from entering the electrical component between the inner wall portion of the opening cover and the upper portion of the side plate.

In the seventh invention, since it is possible to cover the entire width of the upper side of the opening, it is possible to suppress water from above the opening.

In the eighth aspect of the invention, water that has entered from the outside of the casing can be guided to a predetermined drainage location by the groove before the opening provided around the electrical component.

In the ninth invention, a meandering gap is formed between the side groove of the side plate and the side end of the opening cover by inserting the side end of the opening cover into the side groove of the side plate. . With the trap structure configured in this way, it is possible to effectively prevent water from entering the electrical component on the side of the opening.

In the tenth aspect , since it is possible to cover the entire width of the side of the opening, it is possible to suppress water from the side of the opening.

Further, in the eleventh aspect of the invention, it is possible to effectively prevent water from entering the electrical component on both sides of the opening.

In the twelfth invention, by inserting the upper end portion of the opening cover into the upper groove portion of the side plate,
A serpentine gap is formed between the upper groove portion of the side plate and the upper end portion of the opening cover. With the trap structure configured in this way, it is possible to effectively prevent water from entering the electrical component above the opening.

In the thirteenth aspect , since it is possible to cover the entire width of the upper side of the opening, it is possible to suppress water from above the opening.

It is a refrigerant | coolant piping figure of the air conditioner which concerns on one Embodiment of this invention. It is the perspective view which showed the whole structure of the outdoor unit of the air conditioner shown in FIG. It is the front view which showed the right side board of the outdoor unit of the air conditioner shown in FIG. It is the expansion perspective view which looked at the outdoor unit of the air conditioner shown in FIG. 1 from the right side board side. It is sectional drawing along the MM line of FIG. It is sectional drawing along the NN line | wire of FIG. It is the cross-sectional enlarged schematic diagram which showed the trap structure comprised by the top plate, right side plate, and closing valve cover of the outdoor unit of the air conditioner shown in FIG. It is the front view which showed the closing valve cover of the outdoor unit of the air conditioner shown in FIG. It is sectional drawing along the JJ line of FIG. It is a disassembled perspective view of the electrical equipment box and terminal block attachment board of the outdoor unit of the air conditioner shown in FIG. It is an expansion perspective view of the nail | claw part vicinity provided in the electrical component box shown in FIG. It is the schematic diagram which showed the bending method of the nail | claw part of the electrical component box shown in FIG. It is the schematic diagram which showed the fixing method of the wiring by the nail | claw part of the electrical component box shown in FIG. It is the schematic diagram which showed the bending method of the nail | claw part of the electrical component box which concerns on a modification.

Hereinafter, an embodiment of an air conditioner including an outdoor unit according to the present invention will be described based on the drawings.

[Overall configuration of air conditioner]
As shown in FIG. 1, an air conditioner 1 according to this embodiment includes an indoor unit 2 installed on an indoor wall surface or the like.
And an outdoor unit 3 installed outdoors, and a connection pipe 4 that connects the indoor unit 2 and the outdoor unit 3. And the apparatus and valve accommodated in the indoor unit 2 and the outdoor unit 3, and the connection piping 4 are connected, and the refrigerant circuit is comprised. The refrigerant circuit mainly includes an indoor heat exchanger 20, an outdoor heat exchanger 30, a compressor 31 and an electric expansion valve 32. During the cooling operation, the high-temperature and high-pressure refrigerant discharged from the compressor 31 flows into the outdoor heat exchanger 30. The refrigerant condensed in the outdoor heat exchanger (condenser) 30 is depressurized by the electric expansion valve 32 and then the indoor heat exchanger 20.
Flow into. Then, the refrigerant evaporated in the indoor heat exchanger (evaporator) 20 returns to the suction side of the compressor 31. In this way, the air around the indoor heat exchanger 20 is cooled and cold air is supplied indoors. Further, during the heating operation, the high-temperature and high-pressure refrigerant discharged from the compressor 31 flows into the indoor heat exchanger 20. The refrigerant condensed in the indoor heat exchanger (condenser) 20 is decompressed by the electric expansion valve 32 and then flows into the outdoor heat exchanger 30. And outdoor heat exchanger (evaporator)
The refrigerant evaporated at 30 returns to the suction side of the compressor 31. In this way, the indoor heat exchanger 20
The surrounding air is heated and hot air is supplied indoors. In this embodiment, the “outdoor unit” of the present invention is applied to an air conditioner. However, the “outdoor unit” of the present invention is also applicable to a water heater. In this case, the water heater includes an outdoor unit as a heat pump unit and a tank unit.

[Indoor unit]
The indoor unit 2 includes the indoor heat exchanger 20 and an indoor fan (cross flow fan) 21 attached to the indoor heat exchanger 20.

[Outdoor unit]
The outdoor unit 3 includes an outdoor heat exchanger 30, a compressor 31 that compresses the sucked refrigerant, an electric expansion valve 32 connected to the outdoor heat exchanger 30, and an outdoor unit attached to the outdoor heat exchanger 30. A fan (propeller fan) 33, an accumulator 34 connected to the suction side of the compressor 31, and a four-way switching valve 35 connected to the discharge side of the compressor 31 are provided. The outdoor unit 3 is provided with a liquid closing valve 36 and a gas closing valve 37 to which the connection pipe 4 is connected.

[casing]
Each of the above devices (compressor 31, electric expansion valve 32, outdoor fan 33, accumulator 3)
4, the four-way switching valve 35) is accommodated in a substantially box-shaped casing 40 as shown in FIG. The casing 40 includes a bottom plate 41 on which the compressor 31 and the like are placed, a side plate 42 erected from an edge portion of the bottom plate 41, and a top plate 43 disposed to face the bottom plate 41. Side plate 42
Includes a right side plate 44 constituting the right side surface of the casing 40, a left side plate (not shown) constituting the left side surface of the casing 40, and a front plate 45 constituting the front surface of the casing 40. The top plate 43 includes a rectangular top surface portion 43a constituting the top surface of the casing 40, and each of the top surface portion 43a.
And an edge portion 43b orthogonally connected to the end portion.

[Right side plate]
As shown in FIGS. 3 and 6, the right side plate 44 has a substantially L-shaped horizontal cross section, and is bent from a main body portion 44a disposed on the right side surface of the casing 40 and a side end portion of the main body portion 44a. And it has the back surface part 44b arrange | positioned at the back surface of the casing 40. As shown in FIG. As shown in FIG.
4 above the center in the height direction (Z direction) 4 is a terminal block 6 arranged inside the casing 40.
A wiring opening 46 a is provided for drawing a wiring (not shown) connected to 0 from the inside of the casing 40 to the outside. The wiring opening 46 a is opened near the terminal block 60. Specifically, the terminal block 60 is disposed at a position exposed from the wiring opening 46a. With respect to the height direction (Z direction) and the width direction (X direction) of the right side plate 44, the wiring opening 46a is arranged. A terminal block 60 is provided in the opening range. Further, the height direction of the right side plate 44 (Z
Direction) A closing valve opening 46b for exposing the liquid closing valve 36 and the gas closing valve 37 is provided below the center.

In this embodiment, the upper portion 47 from the wiring opening 46a is an engagement portion K between the upper end portion 53 of the closing valve cover 50 and the edge portion 43b of the top plate 43, as shown in FIGS. Inside, that is, inside an inner wall 53b described later. Note that the upper portion 47 extends to a position above the inner wall portion 53b.

As shown in FIG. 3, a groove portion 48 is formed on at least a part of the outer surface of the right side plate 44 and around the wiring opening 46a. The groove 48 includes a horizontal groove 48H formed along the upper side of the wiring opening 46a, and vertical grooves 48L and 48R formed along the left and right sides of the wiring opening 46a. The horizontal groove 48H and the vertical grooves 48L and 48R are connected to each other, and form a substantially U-shaped groove as a whole. Right side plate 4
4, the width W1 of the horizontal groove 48H is equal to the width W2 of the wiring opening 46a.
The vertical groove 48 is set longer than the vertical direction with respect to the height direction (Z direction) of the right side plate 44.
The width W3 of L and 48R is set longer than the width W4 of the wiring opening 46a. Here, in the present embodiment, as shown in FIGS. 5 and 7, a flange 49 protruding outward is provided on the upper portion of the horizontal groove 48 </ b> H of the right side plate 44. The flange portion 49 is disposed above an inner wall portion 53 b of the closing valve cover 50 described later, and the water that has passed through the gap between the edge portion 43 b of the top plate 43 and the upper end portion 53 of the closing valve cover 50. but it has a function to prevent the intrusion overcoming right plate 44. In the present embodiment, the top surface 43a of the top plate 43 and the inner wall 5
A space is provided between the space 3b and the flange 49 is disposed in the space.

[Closing valve cover]
As shown in FIG. 4, a resin closing valve cover (opening cover) 50 is provided outside the right side plate 44.
Is attached. The closing valve cover 50 includes a wiring opening 46a (see FIG. 3) formed in the right side plate 44, wiring (not shown) drawn from the wiring opening 46a, and a closing valve for the right side plate 44. It is provided to cover the liquid closing valve 36 and the gas closing valve 37 exposed from the opening 46b (see FIG. 3). As shown in FIGS. 4, 8, and 9, the closing valve cover 50 includes a gripping portion 51 that is gripped when an operator moves a product, and a liquid closing valve 36 and a gas closing valve 37 that bulges outward. And a bulging portion 52 is provided. As for the closing valve cover 50 of this embodiment, the upper end part 53 is engaging with the edge part 43b of the top plate 43 (refer FIG.5 and FIG.7). As shown in FIGS. 5, 7, and 9, the upper end portion 53 of the closing valve cover 50 has a top plate 43.
The outer wall portion 53a is disposed outside the edge portion 43b, the inner wall portion 53b is disposed inside the edge portion 43b of the top plate 43, and is provided between the outer wall portion 53a and the inner wall portion 53b. Recess 53
c. Then, the edge 43 b of the top plate 43 is inserted into the recess 53 c of the upper end 53, so that the edge 43 b of the top plate 43 and the upper end 53 of the closing valve cover 50 are engaged. The outer wall 53a, the inner wall 53b, and the recess 53c described above all extend along the width direction (X direction) of the closing valve cover 50.

As shown in FIG. 6, the side end portions 54 </ b> L and 54 </ b> R of the closing valve cover 50 are provided on the right side plate 44.
It protrudes to the side and is disposed in the vertical grooves 48L and 48R of the right side plate 44 described above.
Concave portions 55L and 55R are formed in the side end portions 54L and 54R, respectively. The side end portions 54L and 54R can slide in the vertical grooves 48L and 48R of the right side plate 44 in the vertical direction (Z direction). By sliding the vertical grooves 48L and 48R upward from below, The top 4 is placed in a recess 53c formed in the upper end 53 of the shut-off valve cover 50.
3 edge 43b is inserted. Further, the width direction of the right side plate 44 of the side end portions 54L and 54R (X
Notches 56L and 56R are formed in the portions facing the corners 48a and 48b extending from the center portion in the direction) to the vertical grooves 48L and 48R, respectively.

As shown in FIGS. 5, 7, and 9, the inner wall portion 53 b is the tip portion of the outer wall portion 53 a.
The portion 53d that faces the outer wall 53b and the portion 53e that is the tip of the inner wall 53b and that faces the outer wall 53a are formed in a tapered shape, and the edge 43b of the top plate 43 is inserted into the recess 53c. It has become easier. In the present embodiment, the height H2 of the inner wall portion 53b is lower than the height H1 of the outer wall portion 53a (see FIG. 9).

Next, a trap structure that prevents water from entering an electrical component such as the terminal block 60 will be described in detail.

[Trap structure P formed between the closing valve cover 50 and the top plate 43]
As shown in FIG. 7, a trap structure P is formed between the upper end portion 53 of the closing valve cover 50 and the edge portion 43 b of the top plate 43 to prevent water from entering from the upper end portion 53 of the closing valve cover 50. Has been. The trap structure P is configured by inserting an edge 43 b of the top plate 43 into a recess 53 c formed in the upper end 53 of the closing valve cover 50. The trap structure P is
A vertical gap A formed between the outer wall 53a and the edge 43b of the top plate 43; a horizontal gap B formed between the bottom surface of the recess 53c and the lower end surface of the edge 43b of the top plate 43; And inner wall part 5
3 b and a vertical gap C formed between the edge 43 b of the top plate 43. The vertical gap A, the horizontal gap B, and the vertical gap C form a substantially U-shaped meandering gap as a whole. In FIG. 7, the gaps A, B, and C are exaggeratedly depicted, but actually, the edge 43 b of the top plate 43 and the upper end 53 of the closing valve cover 50 are substantially in contact with each other. ing.

[Trap structure Q formed between the closing valve cover 50 and the right side plate 44]
As shown in FIG. 7, a trap structure Q that prevents intrusion of water that has passed through the gap of the trap structure P described above is provided between the inner wall portion 53 b of the upper end portion 53 of the closing valve cover 50 and the right side plate 44. Is formed. The trap structure Q has an inner wall portion 53b in the horizontal groove 48H of the right side plate 44.
Is constituted by being arranged. This trap structure Q has a horizontal gap D formed between the upper end surface of the inner wall 53b and the flange 49 of the right side plate 44, and a vertical formed between the horizontal groove 48H and the inner wall 53b. The gap E is included. This horizontal gap D and vertical gap E
Forms a substantially L-shaped gap as a whole. Although the gaps D and E are exaggerated in FIG. 7, the right side plate 44 and the inner wall 53 b of the closing valve cover 50 are actually in contact with each other.

The vertical gap A, horizontal gap B, vertical gap C, horizontal gap D, and vertical gap E described above are used.
Forms a generally S-shaped meandering gap.

[Trap structure R formed between the top plate 43 and the right side plate 44]
As shown in FIG. 7, a trap structure R that prevents intrusion of water that has passed through the gap of the trap structure P is formed between the top plate 43 and the flange portion 49 of the right side plate 44. In this trap structure R, the flange portion 49 is disposed above the inner wall portion 53 b, and the flange portion 49 is disposed on the top plate 43.
It is formed by arrange | positioning along the inner wall face. The trap structure R includes a vertical gap F formed between the edge 43b of the top plate 43 and the tip surface of the flange 49, and between the top surface 43a of the top plate 43 and the upper end surface of the flange 49. The horizontal gap G is formed. The vertical gap F and the horizontal gap G form a substantially L-shaped gap as a whole. In FIG. 7, the intervals between the gaps F and G are exaggerated, but actually, only a minute gap is formed between the edge portion 43 b of the top plate 43 and the flange portion 49. In addition, you may make the edge part 43b and the collar part 49 of the top plate 43 contact. In this case, the gaps F and G formed between the edge portion 43b of the top plate 43 and the flange portion 49 are substantially eliminated, and the gap between the flange portion 49 of the right side plate 44 and the edge portion 43b of the top plate 43 is eliminated. It is possible to reliably suppress water intruding into electrical components such as the terminal block 60 interposed.

[Trap structure S formed between the closing valve cover 50 and the right side plate 44]
As shown in FIG. 6, the trap structure P, Q, R described above has the upper end portion 5 of the closing valve cover 50.
3, the trap structure S is provided to prevent water from entering from the periphery of the side end portions 54L and 54R of the closing valve cover 50. FIG.
As shown in FIG. 4, the trap structure S is configured by arranging the side end portions 54L and 54R of the closing valve cover 50 in the vertical grooves 48L and 48R of the right side plate 44, respectively.

[Electrical component box]
Next, the electrical component box 70 disposed inside the casing 40 will be described in detail with reference to FIGS. 10 to 13. A control board 62 on which various electronic components are mounted is attached to the electrical component box 70. The control board 62 includes a compressor 31, an electric expansion valve 32,
The operation of each device such as the outdoor fan 33 is controlled.

The electrical component box 70 is made of resin and is formed by integral molding. As shown in FIG. 10, inside the electrical component box 70, a board housing portion 70 a that houses the control board 62.
Is provided. The substrate housing portion 70 a is an area surrounded by the top surface portion 71, the bottom surface portion 72, the right side surface portion 73, and the left side surface portion 74, and the control substrate 62 is the electrical component box 70.
It is arranged in a standing state. A plurality of support ribs 75 that support the control substrate 62 at predetermined positions are provided in the substrate accommodating portion 70a in the depth direction (X direction) of the substrate accommodating portion 70a. In addition, a claw portion 76 that engages with a cutout portion (not shown) of the control substrate 62 is provided in the substrate housing portion 70a. The claw portion 76 can be bent and deformed, and the control board 62 is fixed by engaging the claw portion 76 with a notch (not shown) . Mold holes 78 for removing the mold are formed in portions corresponding to the protrusions 77 (see FIG. 10) provided at various locations on the claw portion 76 and the substrate housing portion 70a.

Further, the terminal block mounting plate 6 is provided on the outer surface of the right side surface portion 73 of the electrical component box 70 of the present embodiment.
A mounting plate installation portion 70b for installing 1 is provided. As shown in FIG. 11, the mounting plate installation portion 70b is provided with claw portions 80A and 80B that can bend and deform on the inner side and the outer side (Y direction) of the electrical component box 70. Each of the claw portions 80A and 80B is formed by punching the right side surface portion 73 into a U-shape. The claw portion 80A is configured so that the other side in the X direction is bent with the one side in the X direction as a fulcrum, and the claw portion 80B is configured so that one side in the X direction is bent with the other side in the X direction as a fulcrum. Yes. If comprised in this way, since the removal direction of the wiring 65 (refer FIG. 12) pinched | interposed into the nail | claw part 80A and the removal direction of the wiring 65 pinched | interposed into the nail | claw part 80B will become mutually opposite directions, claw part 80A. And it is possible to prevent the wiring 65 sandwiched between 80B from being unfixed. This facilitates processing of the wiring 65.

And in this embodiment, as shown in FIG. 11, the outer surface (terminal block mounting plate 6) of claw part 80A.
A protrusion 81A is formed on the surface facing 1), and a protrusion 81B is formed on the outer surface of the claw 80B (the surface facing the terminal block mounting plate 61). This protrusion 81A
And 81B are formed to extend in the Z direction. As shown in FIG.
A is pressed to the terminal block mounting plate 61 to which the protruding portion 81 A is disposed on the mounting plate installation part 70b, bend inward of the electrical component box 70. At this time, the claw portion 80 </ b> A bends to the inside of the electrical component box 70, whereby the wiring 65 routed in the electrical component box 70 is sandwiched. In FIG. 12, the claw portion 80A is described, but the same applies to the claw portion 80B, and the description thereof is omitted. Thereby, the wiring 65 in the electrical component box 70 is connected to the claw portion 8.
It becomes possible to fix at 0A and 80B. In FIG. 12, the wiring 65 is connected to the protrusion 81A.
However, as shown in FIG. 13, the wiring 65 may be fixed at a position over the protruding portion 81A. In this case, since the protrusion 81A functions as a means for preventing the wiring 65 from coming off, the wiring 65 can be more firmly fixed.

[Features of outdoor unit of this embodiment]
The outdoor unit of this embodiment has the following characteristics.

In the outdoor unit 3 of the present embodiment, the edge 43b of the top plate 43 and the upper end 53 of the closing valve cover 50 are engaged with each other at a position above the wiring opening 46a, so that it is closed near the wiring opening 46a. Compared to the case where the valve cover 50 is provided, the engagement portion K and the wiring opening 46a.
The distance between can be secured. Accordingly, the length of the water immersion path from the outside of the casing 40 to the electrical component such as the internal terminal block 60 can be increased.
It is possible to reduce the momentum of the water that is submerged through the terminal, and to suppress the inundation of the electrical components such as the terminal block 60.

In the outdoor unit 3 of this embodiment, the edge 43b of the top plate 43 is closed by inserting the edge 43b of the top plate 43 into a recess 53c provided between the outer wall 53a and the inner wall 53b. A meandering gap (vertical gap A, horizontal gap B, vertical gap C) is formed between the upper end portion 53 of the valve cover 50. With the trap structure P configured as described above, it is possible to effectively prevent water from entering the electrical components such as the terminal block 60.

In the outdoor unit 3 of the present embodiment, the upper portion 47 from the wiring opening 46a of the right side plate 44 is disposed inside the inner wall portion 53b, so that the upper portion 47 is connected to the electrical component such as the terminal block 60. Since it functions as a waterproof wall that prevents inundation, it is possible to further inhibit inundation of electrical components such as the terminal block 60.

In the outdoor unit 3 of the present embodiment, by providing the flange portion 49 on the right side plate 44, the water that has entered from the outside of the casing 40 is related to the edge portion 43 b of the top plate 43 and the upper end portion 53 of the closing valve cover 50. Even when passing through the joint portion K (trap structure P), the flange 49 disposed above the inner wall portion 53b prevents water from getting over the right side plate 44 and entering the right side plate 44. be able to.

In the outdoor unit 3 of this embodiment, by contacting a more wiring opening 46a of the right side plate 44 and the upper portion 47 and the inner wall portion 53b, a gap formed between the inner wall portion 53b and the right side plate 44 Is substantially eliminated, and it is possible to reliably prevent water from entering the electrical components such as the terminal block 60 between the inner wall portion 53b of the closing valve cover 50 and the upper portion 47 of the right side plate 44.

In the outdoor unit 3 of the present embodiment, by forming the recess 53c along the width direction (X direction) of the closing valve cover 50, it becomes possible to cover the entire width of the upper side of the wiring opening 46a. It is possible to suppress water from above the wiring opening 46a.

In the outdoor unit 3 of the present embodiment, a groove 48 is formed on at least a part of the outer side surface of the right side plate 44 and around the wiring opening 46 a, so that it can be positioned near an electrical component such as the terminal block 60. The water that has entered from the outside of the casing 40 can be guided to a predetermined drainage location by the groove portion 48 before the wiring opening 46a to be arranged.

In the outdoor unit 3 of the present embodiment, the closing valve cover 5 is placed in the vertical grooves 48L and 48R of the right side plate 44.
By inserting the zero side end portions 54L and 54R, a meandering gap is formed between the vertical grooves 48L and 48R of the right side plate 44 and the side end portions 54L and 54R of the closing valve cover 50. With the trap structure S configured as described above, the terminal block 60 is formed on the side of the wiring opening 46a.
It is possible to effectively prevent flooding of electrical parts such as.
Since the vertical grooves 48L and 48R are formed along the height direction (Z direction) of the right side plate 44, it is possible to cover the entire width of the side of the wiring opening 46a. It becomes possible to further suppress the flooding from the side of the portion 46a.

In the outdoor unit 3 of the present embodiment, by providing the vertical grooves 48L and 48R on both sides of the wiring opening 46a, water can be effectively immersed in the electrical components such as the terminal block 60 on both sides of the wiring opening 46a. Can be deterred.

In the outdoor unit 3 of the present embodiment, the upper end portion 53 of the closing valve cover 50 is inserted into the horizontal groove 48H of the right side plate 44, whereby the horizontal groove 48H of the right side plate 44 and the upper end portion 53 of the closing valve cover 50 are separated. A meandering gap (horizontal gap D and vertical gap E) is formed therebetween. With the trap structure Q configured as described above, it is possible to effectively prevent water from entering the electrical component such as the terminal block 60 above the wiring opening 46a.
By forming the horizontal groove 48H along the width direction (X direction) of the right side plate 44, the entire width of the upper side of the wiring opening 46a can be covered. It becomes possible to further suppress flooding from above.

Moreover, in the outdoor unit 3 of this embodiment, the structure which bends the nail | claw parts 80A and 80B with the pressing force at the time of attaching another member (terminal block attachment board 61) to the outer side of the electrical component box 70 is employ | adopted. With this configuration, (1) the present structure can be realized without increasing the number of parts by using the current parts such as the terminal block mounting plate 61 and the terminal block 60 as pressing parts from the outside. It becomes. (2) Moreover, it protrudes inside the electrical component box 70 like the protrusion 77.
In the case where the protrusion is provided, a mold hole 78 for removing the mold is required, and the hole 7 is provided.
8 is required, but the protrusions 81A and 81B are provided on the claw portions 80A and 8B.
Since it is formed on the outer surface of 0B, the mold hole 78 and the sealing material are not required.

As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not only by the above description of the embodiments but also by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

For example, in the above embodiment, the protrusion 81 is provided on the claw portions 80A and 80B of the electrical component box 70.
The claw portions 80A and 80B are bent inside the electrical component box 70 by forming A and 81B and pressing the projections 81A and 81B with the terminal block mounting plate 61. However, the present invention is not limited to this. The electrical component box 170 and the terminal block mounting plate 16 according to the modification shown in FIG.
1 may be configured. Specifically, the electrical component box 170 according to the modified example is provided with a claw portion 180 that is not provided with a protrusion, and a portion of the terminal block mounting plate 161 that faces the claw portion 180 is provided. A protrusion 162 such as a screw is provided. If comprised in this way, the nail | claw part 180 will be pressed by the projection part 162 provided in the terminal block attaching plate 161,
The inside of the electrical component box 70 is bent. Thereby, the wiring 65 in the electrical component box 70 can be fixed by the claw portion 180. That is, the protrusions 81A and 81B provided to bend the claw portions 80A and 80B described above may be formed on the claw portions 80A and 80B side, or may be formed on the terminal block mounting plate 61 side. Good. Further, when the above-described screw as the projecting portion 162 is a screw for fixing other parts, the claw portions 80A and 80B can cover the edge of the tip portion of the screw.

If the present invention is used, an outdoor unit capable of suppressing the intrusion of water from the outside of the casing to the internal electrical components can be obtained.

DESCRIPTION OF SYMBOLS 1 Air conditioner 3 Outdoor unit 40 Casing 41 Bottom plate 43 Top plate
43a Top surface portion 43b Edge portion 44 Right side plate 46a Wiring opening (opening)
47 Upper part 48 Groove 48H Horizontal groove (upper groove)
48L, 48R Vertical groove (side groove)
49 Buttocks 50 Closing valve cover (opening cover)
53 Upper end 54L , 54R Side end 60 Terminal block (electrical parts)
53a Outer wall portion 53b Inner wall portion 53c Recess

Claims (13)

A casing having a bottom plate , a side plate, and a top plate ;
Electrical components housed in the casing;
An opening formed in the side plate and opening near the electrical component;
An opening cover that is disposed outside the side plate and covers the opening;
The top plate is
A top surface portion opposed to the bottom plate;
An edge portion extending downward from an end portion of the top surface portion,
On the upper end of the opening cover,
An outer wall portion disposed on the outside of the edge of the top plate,
An inner wall portion which is disposed inside the edge of the top plate,
A recess provided between the outer wall portion and the inner wall portion is formed;
Above the position of said opening, the said edge portion of the top plate is inserted into the recess formed in the upper portion of the opening cover, and the upper portion than the opening of the side plate, the inner wall portion An outdoor unit characterized by being arranged inside the room. The upper portion of the side plate above the opening is the top surface portion of the top plate and the upper end of the inner wall portion.
The outdoor unit according to claim 1, further comprising a flange portion disposed between the two . Projecting distal end face of the overhanging portion is characterized in that in proximity to or in contact with the edge of the top plate, the outdoor unit of claim 2. An upper end surface of the collar portion is close to or in contact with the top surface portion of the top plate.
The outdoor unit according to claim 2 or 3. The lower end surface of the collar portion is close to or in contact with the upper end of the inner wall portion.
The outdoor unit according to any one of claims 2 to 4. The opening than the upper portion of the side plate is characterized in that in proximity to or in contact with the inner wall portion, the outdoor unit according to any one of claims 1-5. The recess, characterized in that it is formed along the width direction of the opening cover, the outdoor unit according to any one of claims 1-6. At least partly around the opening an outer surface of the side plate, characterized in that the groove is formed, the outdoor unit according to any one of claims 1-7. The outdoor unit according to claim 8 , wherein the groove includes a side groove that is disposed on a side of the opening and into which a side end of the opening cover is inserted. The outdoor unit according to claim 9 , wherein the side groove portion is formed along a height direction of the side plate. The lateral groove is provided on both sides of the opening, or
The outdoor unit according to 10 . The outdoor unit according to any one of claims 8 to 11 , wherein the groove includes an upper groove disposed above the opening and into which an upper end of the opening cover is inserted. The upper groove portion is formed along a width direction of the side plate.
12. The outdoor unit according to 12 .

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