Outdoor unit

Abstract

To provide an outdoor unit which prevents penetration of water from a blast room side to a machine room side without requiring a complicated structure and without increasing the number of components.SOLUTION: An electric component attachment plate 200 includes: a machine room side wall part 211 having a wall surface at a machine room 36 side; a blast room side wall part 212 having a wall surface at a blast room 35 side; a contact surface part 213 which is located between the machine room side wall part 211 and the blast room side wall part 212 and comes into contact with a first flange part 131 and a second flange part 141; engagement parts having respective recessed parts each of which comprises the machine room side wall part 211, the blast room side wall part 212, and the contact surface part 213, which engage so as to cover a corresponding one of the first flange part 131 and the second flange part 141, and are open downward; an attachment part 214 extending from the machine room side wall part 211 to the machine room 36 side; a groove part 215 for causing water to flow to an upper part of the contact surface part 213; water receiver hole parts 216 for causing water which has flowed to the groove part 215 to flow to the blast room 35 side; and a water receiver surface part 217 for causing water on an upper surface of the attachment part 214 to flow to the water receiver hole parts.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] This invention relates to an outdoor unit equipped with electrical components inside.

Background Art

[0002] Conventionally, in this type of outdoor unit, as described in Patent Document 1, a control box provided with a control board inside is provided, and this control box serves as a roof or a rat guard to prevent water splashed by the rotation of the fan from entering the machine room side, and there has been something known to prevent water ingress.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the above conventional device, although it is possible to prevent water from entering the machine room with the control box, there is a problem that a configuration for preventing water from entering the machine room is necessary when the control box is not provided or when it is arranged at another position. match, new There was a problem that a configuration for preventing water from entering the machine room was necessary.

Means for Solving the Problems

[0005] ​To solve the aforementioned problems, Claim 1 of the present invention provides an outdoor unit comprising a substantially box-shaped housing, a partition wall dividing the interior of the housing into a machine room located on one side in the left-right direction and equipped with a compressor and an expansion valve, and a blower chamber located on the other side in the left-right direction and equipped with a fan and a heat exchanger, and an electrical component mounting plate disposed on the partition wall and for mounting electronic components at the bottom, wherein the partition wall comprises a first partition portion extending in a first predetermined direction intersecting the vertical direction, a first flange portion provided in the first partition portion so as to protrude toward the blower chamber side, a second partition portion extending in a second predetermined direction intersecting the vertical direction and different from the first predetermined direction, and a second partition portion provided in the second partition portion so as to protrude toward the blower chamber side The electrical component mounting plate has two flange portions, and the electrical component mounting plate has a machine room side wall portion having a wall surface on the machine room side, a blower chamber side wall portion having a wall surface on the blower chamber side, a contact surface portion between the machine room side wall portion and the blower chamber side wall portion that contacts the first flange portion and the second flange portion, an engaging portion consisting of the machine room side wall portion, the blower chamber side wall portion and the contact surface portion, which engages with the first flange portion and the second flange portion respectively so as to cover them, a mounting portion extending from the machine room side wall portion toward the machine room, a groove portion on the upper part of the contact surface portion for draining water, a water receiving hole portion for draining water that has flowed into the groove portion toward the blower chamber side, and a water receiving surface portion for draining water from the upper surface of the mounting portion toward the water receiving hole.

[0006] Furthermore, in claim 2, the lower end of the machine room side wall portion has a first inclined portion that slopes downward in the first predetermined direction and a second inclined portion that slopes downward in the second predetermined direction. [Effects of the Invention]

[0007] According to this invention, by arranging an electrical component mounting plate on the partition wall separating the machine room and the ventilation room, it is possible to prevent water from entering the compressor and expansion valve located in the machine room from the ventilation room side. [Brief explanation of the drawing]

[0008] [Figure 1] Front view showing the overall appearance of the outdoor unit of one embodiment of the present invention. [Figure 2] A perspective view from the front right, showing the overall appearance of the outdoor unit. [Figure 3] Perspective view showing the internal structure of the outdoor unit's casing. [Figure 4] An enlarged perspective view showing the key parts of the electrical component mounting plate and vertical partition wall extracted from the structure shown in Figure 3. [Figure 5] Exploded perspective view of the structure shown in Figure 4. [Figure 6] Perspective view from the front right, top view, and front view showing the detailed structure of the vertical partition wall. [Figure 7] This diagram roughly corresponds to the view from direction Q in Figure 6(b). [Figure 8] This diagram roughly corresponds to the view from the R direction in Figure 6(b). [Figure 9] A perspective view from slightly above and to the right front of the electrical component mounting plate, and a perspective view from slightly below and to the right front of the plate, showing the overall structure of the electrical component mounting plate. [Figure 10] Perspective views from slightly above and to the right rear, and from slightly below and to the right rear, showing the overall structure of the electrical component mounting plate. [Figure 11] A top view and a front view showing the overall structure of the electrical component mounting plate. [Figure 12] Perspective view illustrating the engagement behavior between the electrical component mounting plate and the vertical partition wall. [Figure 13] Perspective view illustrating the engagement behavior between the electrical component mounting plate and the vertical partition wall. [Figure 14] A top view and a cross-sectional view of section AA in Figure 14(a) showing the electrical component mounting plate and vertical partition wall in an engaged state. [Figure 15] Front view showing an electrical component mounting plate and a vertical partition wall according to another embodiment of the present invention. [Modes for carrying out the invention]

[0009] Hereinafter, one embodiment of the present invention will be described with reference to Figures 1 to 18.

[0010] <Outdoor unit overview> The external structure and overall general internal structure of the outdoor unit according to this embodiment will be explained with reference to Figures 1, 2, and 3.

[0011] In these Figures 1 to 3, this outdoor unit 2 is installed outdoors of an appropriate building such as a house, and is connected via a pipe not shown to an indoor unit (not shown) installed indoors. The outdoor unit 2 includes a housing 31 formed in a substantially box shape (alternatively, a rectangular parallelepiped hollow shape). The housing 31 includes an upper cover 31a located on the upper side of the substantially box shape, a front panel 31b located on the front side of the substantially box shape, a right side plate 31d located on one side in the left-right direction (in this example, the right side) of the substantially box shape, a left side plate (not shown) located on the other side in the left-right direction (in this example, the left side) of the substantially box shape, and a bottom plate 31f (see FIG. 3) located on the lower side of the substantially box shape.

[0012] Inside the housing 31, a vertical partition wall 100 is provided. As a result, inside the housing 31, the right side of the vertical partition wall 100 is partitioned as a machine room 36, and the left side of the vertical partition wall 100 is partitioned as a blower chamber 35. On the vertical partition wall 100, an electrical component mounting plate 200 on which electrical components (not shown) such as capacitors are mounted at the lower part is arranged.

[0013] In the blower chamber 35, an air heat exchanger 8 (corresponding to a heat exchanger) that performs heat exchange between the refrigerant and the outside air and an outdoor fan 10 (corresponding to a fan) are housed. The air heat exchanger 8 has a right end plate 8R (see FIG. 3) for attaching its right end to the housing 31 and a left end plate 8L (see FIG. 3) for attaching its left end to the housing 31. The air heat exchanger 8 in this example is a fin-tube type heat exchanger of a panel body that is ventilable in its thickness direction, and is arranged over substantially the entire height direction of the blower chamber 35 on the rear (back) side and the left side of the blower chamber 35. Also, the back surface of the air heat exchanger 8 serves as the back surface portion of the housing 31.

[0014] In this example, the outdoor fan 10 includes a rotating shaft 10b driven by a drive motor (not shown) and an impeller 10a fixed to the rotating shaft 10b, and is an axial fan that blows air in the direction from the rear side to the front side of the outdoor unit 2 (the direction from the upper right to the lower left in FIG. 3).

[0015] The machine room 36 is a substantially enclosed space surrounded by the front panel 31b, the right side plate 31d, the bottom plate 31f, and the vertical partition wall 100. The machine room 36 houses a compressor 7 that compresses the refrigerant, a compressor terminal 7A to which wiring related to driving the compressor 7 is connected, a capillary tube 9 having a function as an expansion valve for decompressing and expanding the refrigerant, a discharge temperature sensor that detects the discharge temperature of the refrigerant discharged from the compressor 7, a heat exchange sensor that detects the temperature of the refrigerant flowing between the air heat exchanger 8 and the expansion valve, and the like. In this example, as shown in FIG. 6, the compressor 7 is arranged in the machine room 36 closer to the right side plate 31d, that is, closer to the right side plate 31d than the vertical partition wall 100.

[0016] <Main part of the embodiment> The main part of the outdoor unit 2 of the present embodiment lies in the structures of the vertical partition wall 100 and the electrical component mounting plate 200. The details will be described below in sequence.

[0017] <Structure of the vertical partition wall> As shown in FIGS. 4 and FIG. 3, the vertical partition wall 100 includes a vertical wall portion 130 (corresponding to the first partition portion) that intersects in the vertical direction and extends in the front end direction (corresponding to the first predetermined direction X1) from the inside of the housing 31 toward the front panel 31b side, and a horizontal wall portion 140 (corresponding to the second partition portion) that intersects in the front-rear direction (corresponding to the second predetermined direction X2) so as to face the air heat exchanger 8 from the inside of the outdoor unit to the vicinity of the right end plate 8R of the air heat exchanger 8 of the vertical wall portion 130.

[0018] <Vertical wall portion> As shown in Figures 5 to 8, the vertical wall portion 130 includes a partition plate portion 130P arranged so that the front-to-back direction is the surface direction, a first flange portion 131 provided on the upper portion 130A and the lower portion 130B located at the upper end of the partition plate portion 130P, and a mounting plate 135 located at the front end and having screw holes through which screws for fixing the vertical wall portion 130 to the housing 31 are inserted.

[0019] The first flange portion 131 is provided to protrude to the left (in other words, to the side of the air blower chamber 35).

[0020] <Side wall section> As shown in Figures 5 to 8, the side wall portion 140 includes a partition plate portion 140P arranged so that the surface direction is generally from the left front to the right rear, a second flange portion 141 provided on a stepped portion 140A located at the upper end of the partition plate portion 140P, and a mounting plate 145 located at the end of the side wall portion 140 opposite the vertical wall portion 130 and having screw holes through which screws for fixing the side wall portion 140 to the end plate 8R are inserted.

[0021] The second flange portion 141 is provided so as to protrude to the left side (in other words, to the side of the air blower chamber 35).

[0022] <Structure of the electrical component mounting plate> As shown in Figures 9, 10, and 11, the electrical component mounting plate 200 is composed of a machine room side wall portion 211 which is the wall surface on the machine room 36 side, a blower chamber side wall portion 212 which is the wall surface on the blower chamber 35 side, a contact surface portion 213 between the machine room side wall portion 211 and the blower chamber side wall portion 212 where the vertical wall portion 130 and the horizontal wall portion 140 come into contact, a mounting portion 214 extending from the machine room side wall portion 211 towards the machine room 36 side, a groove portion 215 which is opened on the back surface of the contact surface portion 213 so that water can fall into it, a water receiving hole portion 216 which allows water that has fallen from the groove portion 215 to flow towards the blower chamber 35 side, and a water receiving surface portion 217 which allows water accumulated on the upper surface of the mounting portion 214 to flow into the groove portion 215.

[0023] Furthermore, the recess opening downwards between the machine room side wall 211, the blower room side wall 212, and the contact surface 213 that covers the first flange portion 131 is the first recess C1, and the recess opening downwards between the machine room side wall 211, the blower room side wall 212, and the contact surface 213 that covers the second flange portion 141 is the second recess C2.

[0024] <Engagement between electrical component mounting plate and vertical partition wall> The engagement between the electrical component mounting plate 200 and the vertical partition wall 100, configured as described above, will be explained with reference to Figures 12 and 13. As shown in Figures 12 and 13, and in Figures 9 and 10, the contact surface 213 of the first recess C1 (more specifically, the lower surface of the contact surface 213 on the vertical wall portion 130 side) abuts against the upper surface of the first flange portion 131 of the vertical partition wall 100. In addition, the contact surface 213 of the second recess C2 (more specifically, the lower surface of the contact surface 213 on the horizontal wall portion 140 side) abuts against the upper surface of the second flange portion 141 of the vertical partition wall 100.

[0025] As a result of the above, as shown in Figure 14, the first recess C1 engages as a whole to cover the upper surface of the upper section 130A, the lower section 130B, and the first flange section 131, and the second recess C2 engages as a whole to cover the upper surface of the stepped section 140A and the second flange section 141.

[0026] <Effects of the Embodiment> Thus, in this embodiment, water such as rain that enters from the front panel 31b is repelled by the outdoor fan 10 and may be scattered towards the vertical partition wall 100. Therefore, as a first water ingress prevention structure, the vertical partition wall 100 and the ventilation chamber side wall 212 form a wall, preventing water from entering from the ventilation chamber 35 side to the machine room 36 side.

[0027] Furthermore, as a second flood prevention structure, the water receiving surface 217 prevents water that is repelled by the outdoor fan 10 and drips from the upper cover 31a from entering the machine room 36. At this time, the water that drips onto the water receiving surface 217 flows into the groove 215 and flows to the blower chamber 35 side through the water receiving hole 216, thereby preventing water from entering the machine room 36 side from the blower chamber 35 side.

[0028] Therefore, in an outdoor unit without a control box, the side wall portion 212 of the air blowing chamber prevents water from splashing due to the outdoor fan or wind, and water that drips from the upper cover 31a is drained from the water receiving surface portion 217 through the groove portion 215 to the water receiving hole portion 216 towards the air blowing chamber 35, thereby reliably preventing water from entering the machine room 36.

[0029] <Third flood prevention structure for the side wall of the machine room> Next, using Figure 15, we will explain in detail the third flood prevention structure that protects the equipment inside the machine room 36 from water that has seeped into the machine room 36 from the contact surface between the first recess C1 and the first flange portion 131, and the contact surface between the second recess C2 and the second flange portion 141.

[0030] 218 is a first inclined portion that slopes downward toward a first predetermined direction X1 toward the lower edge of the machine room side wall portion 211 on the vertical wall portion 130 side, and 219 is a second inclined portion that slopes downward toward a second predetermined direction X2 toward the lower edge of the machine room side wall portion 211 on the horizontal wall portion 140 side.

[0031] By utilizing the property that water that has wrapped around the machine room temporarily adheres to the lower edge of the machine room side wall 211 due to surface tension, and the property that it mainly flows from top to bottom, the first inclined section 218 and the second inclined section 219 guide the water to the upper cover 31a side or the right side plate 31d side of the housing 31.

[0032] In this way, the first inclined portion 218 and the second inclined portion 219 prevent water that has seeped into the machine room 36 from the contact surface between the first recess C1 and the first flange portion 131, and from the contact surface between the second recess C2 and the second flange portion 141, from flooding the center of the machine room 36, and the water can be drained out of the housing 31 through the drainage portion of the bottom plate 31f via the front panel 31b and the right side plate 31d of the housing 31.

[0033] It should be noted that the present invention is not limited to the embodiments described above, and the configuration can be modified as appropriate without departing from the spirit of the invention. For example, the configurations described in the embodiments can be combined or selected as appropriate, or parts of the configurations of the embodiments can be added, deleted, or replaced. [Explanation of symbols]

[0034] 2 Outdoor unit 7 Compressor 8. Air heat exchanger (heat exchanger) 31 cabinets 35 Ventilation room 36 Machine room 100 Vertical partition wall (partition wall) 130 Vertical wall section (first partition section) 130A Upper section 130B Lower section 131 First flange section 140 Side wall section (second partition section) 141 Second flange section 200 Electrical component mounting plate 211 Machine room side wall 212 Side wall of the ventilation chamber 213 Contact surface section 214 Mounting part 215 Groove 216 Water receiving hole section 217 Water receiving surface 218 1st slope section 219 2nd slope part C1 First recess (first engagement portion) C2 Second recess (second engagement portion) X1 1st predetermined direction X2 2nd predetermined direction

Claims

1. A roughly box-shaped enclosure, The interior of the enclosure is divided by a partition wall into a machine room located on one side in the left-right direction and equipped with a compressor and expansion valve, and a blower room located on the other side in the left-right direction and equipped with a fan and heat exchanger. In an outdoor unit having an electrical component mounting plate positioned on the partition wall and having electronic components mounted on its lower part, The aforementioned partition wall is, A first partition portion that intersects the vertical direction and extends in a first predetermined direction, The first flange portion provided in the first partition portion so as to protrude toward the air supply chamber side, A second partition portion that intersects the aforementioned vertical direction and extends in a second predetermined direction different from the first predetermined direction, The second partition portion has a second flange portion that is provided to protrude toward the air blowing chamber side, The aforementioned electrical component mounting plate is The machine room side wall portion having a wall surface on the machine room side, The aforementioned side wall of the ventilation chamber having a wall surface on the ventilation chamber side, Between the machine room side wall and the blower chamber side wall, there is a contact surface portion that contacts the first flange portion and the second flange portion, The machine room side wall portion, the blower chamber side wall portion, and the contact surface portion comprise an engaging portion having a downwardly opening recess that engages with the first flange portion and the second flange portion, respectively, A mounting portion extending from the machine room side wall toward the machine room, The upper part of the contact surface portion has a groove for draining water, A water receiving hole that directs the water that flows into the groove towards the air blowing chamber, The upper surface of the mounting portion includes a water receiving surface portion that directs water to the water receiving hole, An outdoor unit characterized by having the following features.

2. The lower end of the machine room side wall portion is, A first inclined portion that slopes downward in the first predetermined direction, The outdoor unit according to claim 1, further characterized by having a second inclined portion that inclins downward toward the second predetermined direction.

Images