Air conditioner

Abstract

To provide an air conditioner which can collect and discharge drain water generated in an evaporator irrespective of an installation posture.SOLUTION: An air conditioner includes a drain water receiving part 40 which defines a collection space SS for collecting drain water W below a condenser. The drain water receiving part 40 includes: a receiving surface 41 opposing to a bottom surface of the condenser and receiving the drain water W; a pair of side walls 42 rising upward from the receiving surface 41 on both outer sides in the width direction D3 of the condenser; a rear wall 43 rising upward from the receiving surface 41 outside of the condenser on one side in the frontward / backward direction D1 crossing the width direction D3; a drain port 45 opening at a position closer to the other side end in the width direction D3 in the collection space SS or at the other side end, and draining the drain water W from the collection space SS; and an extension wall 46 further rising upward from the rear wall 43 on one side in the width direction D3 with respect to the drain port 45, and connected to the side wall 42 arranged on the one side in the width direction D3.SELECTED DRAWING: Figure 10

Description

[Technical field]

[0001] The present invention relates to an air conditioner. [Background technology]

[0002] 2. Description of the Related Art Conventionally, there has been known an air conditioner in which a compressor, a condenser, a pressure reducing device, an evaporator, a blower, a control device, and the like that constitute a refrigerant circuit are housed in a single housing.

[0003] In this type of air conditioning system, as described in Patent Document 1, for example, a condenser (heat radiator) is placed below the evaporator, and drain water generated in the evaporator is allowed to flow down into and come into contact with the condenser, thereby cooling the condenser and improving the efficiency of the refrigeration cycle. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Korean Patent No. 10-2171872 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the drain water generated in the evaporator flows down below the condenser after being used to cool the condenser, so for example, a drain pan is provided below the condenser to collect the drain water and discharge it outside the housing. However, when an air conditioner as described above is installed in a vehicle, if the vehicle tilts while traveling, the drain water in the drain pan may overflow from the drain pan and adversely affect devices inside the housing.

[0006] SUMMARY OF THE PRESENT DISCLOSURE The present invention provides an air conditioner that is capable of collecting and discharging drain water generated in an evaporator regardless of the installation position. [Means for solving the problem]

[0007] An air conditioner according to one aspect of the present invention includes a refrigerant circuit including a compressor, a condenser, a pressure reducing device, an evaporator, and a refrigerant flow path connecting the compressor, the condenser, the pressure reducing device, and the evaporator, through which a refrigerant circulates; a drain water introduction path that is disposed between the evaporator and the condenser below the evaporator, and that introduces drain water generated in the evaporator to the condenser; and a drain water receiving portion that defines a collection space below the condenser for collecting the drain water. The drain water receiving portion includes a receiving surface that faces a bottom surface of the condenser and receives the drain water, and a drain water receiving portion that receives the drain water from the condenser. the condenser has a pair of side walls rising upward from the receiving surface on both outer sides in the width direction, a front-to-rear side wall rising upward from the receiving surface outside the condenser on one side in the front-to-rear direction intersecting the width direction, a drain outlet that opens at a position near one side end in the width direction of the collection space or at that one side end and discharges the drain water from the collection space, and an extension wall that rises further upward from the one side wall in the front-to-rear direction on the other side in the width direction relative to the drain outlet and is connected to the side wall arranged on the other side in the width direction.

[0008] In the air conditioning device, the extension wall may have a height dimension from the one side wall in the front-rear direction gradually increasing from the one side to the other side in the width direction.

[0009] In the above air conditioning device, the condenser is positioned to exchange heat with air circulating in the front-to-rear direction, and the extension wall may have an opposing surface that faces a portion of the surface of the condenser from one side of the condenser in the front-to-rear direction.

[0010] In the above air conditioning device, the one side in the front-to-rear direction on which the extension wall is arranged may be the downstream side in the flow direction of air flowing through the condenser, and the drain outlet may open to the downstream side in the collection space.

[0011] In the above air conditioning device, the drain water receiving portion may further have a other front-to-rear side wall that rises upward from the receiving surface outside the condenser on the other side in the front-to-rear direction, the other front-to-rear side wall being inclined toward the other side in the front-to-rear direction as it extends upward, and at least a part of the compressor may be positioned below the other front-to-rear side wall.

[0012] The air conditioning device may further include a control device that controls the refrigerant circuit and is provided on the other side in the width direction relative to the side wall arranged on the other side in the width direction.

[0013] In the above air conditioning device, the condenser is positioned to exchange heat with the air circulating in the front-to-rear direction, and the air conditioning device further includes a condenser case that houses the condenser and exposes at least a portion of the condenser on both sides in the front-to-rear direction, and the drain water receiving portion may form the bottom of the condenser case.

[0014] The air conditioner may be installed in a vehicle. Effect of the Invention

[0015] According to the above air conditioner, it is possible to collect and discharge the drain water generated in the evaporator regardless of the installation position. [Brief description of the drawings]

[0016] [Figure 1] 1 is a perspective view of an air conditioner according to an embodiment of the present invention, seen obliquely from the front. [Diagram 2] FIG. 2 is a perspective view of the air conditioner as viewed obliquely from behind. [Diagram 3] FIG. 2 is a perspective view of the air conditioner as viewed obliquely from the front, with a part of the housing removed for ease of explanation. [Figure 4] FIG. 2 is a perspective view of the air conditioner as viewed obliquely from behind, with a part of the housing removed for ease of explanation. [Diagram 5]4 is a side view of the air conditioning device as viewed from the other side in the width direction. FIG. [Figure 6] FIG. 6 is a vertical cross-sectional view of the air conditioner, taken along line VV of FIG. 5. [Figure 7] 4. FIG. 4 is a vertical cross-sectional view of the air conditioner. [Figure 8] 2 is a perspective view of a bottom portion of a condensation side inner case and a bottom portion of a housing of the air conditioner, as viewed obliquely from behind. FIG. [Figure 9] 2 is a perspective view of a bottom portion of a condensation side inner case and a bottom portion of a housing of the air conditioner, as viewed obliquely from the front and from obliquely above. FIG. [Figure 10] 8A is a vertical cross-sectional view of the bottom of the condensation side inner case and the bottom of the housing of the air conditioner, and is a cross-sectional view taken along the line VIII-VIII in FIG. 8.

[0017] Hereinafter, an air conditioner 100 according to an embodiment of the present invention will be described. The air conditioner 100 of this embodiment is a small air conditioner such as a spot cooler dedicated to cooling mounted on a vehicle, but the installation location, size, etc. are not particularly limited. (Overall composition) As shown in Figures 1 and 2, air conditioner 100 includes a housing 1, and as shown in Figures 3 and 4, air conditioner 100 further includes a compressor 2, an evaporator 3, a condenser 4, an evaporator-side blower 5, a condenser-side blower 6, a pressure reducing device 7, and a control device 8, which are all contained within the housing 1, and also includes refrigerant piping 9 that connects the compressor 2, the condenser 4, the evaporator 3, and the pressure reducing device 7 to form a refrigerant flow path for circulating refrigerant between these components.

[0018] For ease of explanation, FIG. 3 is a diagram showing the air conditioner 100 with the parts other than the bottom plate 1x of the housing 1 removed from the overall view shown in FIG. 1, and FIG. 4 is a diagram showing the air conditioner 100 with the parts other than the bottom plate 1x of the housing 1 removed from the overall view shown in FIG. 2.

[0019] The compressor 2, the condenser 4, the pressure reducing device 7, the evaporator 3, and the refrigerant pipes 9 constitute a refrigerant circuit in which the refrigerant circulates in the order of the compressor 2, the condenser 4, the pressure reducing device 7, and the evaporator 3. In addition to this refrigerant circuit, the air conditioner 100 further includes a drain water introduction path 20 that introduces drain water W generated in the evaporator 3 to the condenser 4, and a drain water receiver 40 that collects the drain water W below the condenser 4 (see FIG. 7).

[0020] (Housing) Returning to FIG. 1, the housing 1 has a generally rectangular parallelepiped shape. A control panel 11, an air outlet 12, and an air inlet 13 are provided on a front surface 1a of the housing 1 facing the front side in the front-rear direction D1. The control panel 11 is provided to be located in front of a control device 8 (see FIG. 3) housed in the housing 1, and is capable of operating the control device 8. The air outlet 12 is provided to be located in front of an evaporator 3 (see FIG. 3) housed in the housing 1, and is adapted to blow out air (cold air) that has passed through the evaporator 3. The air inlet 13 is provided to be located in front of a condenser-side blower 6 (see FIG. 3) housed in the housing 1, and is adapted to take in air into the housing 1 toward the condenser 4.

[0021] 2, an air inlet 14 and an exhaust port 15 are provided on a rear surface 1b facing the rear side in the front-rear direction D1 of the housing 1. The air inlet 14 is provided so as to be located behind an evaporator-side blower 5 (see FIG. 4) housed in the housing 1, and is adapted to take in air into the housing 1 toward the evaporator 3. The exhaust port 15 is provided so as to be located behind a condenser 4 (see FIG. 4) housed in the housing 1, and is adapted to blow out air (exhaust air) that has passed through the condenser 4.

[0022] (Condenser) As shown in FIG. 4, the condenser 4 is disposed at the lower part in the housing 1. The condenser 4 is a fin-and-tube type heat exchanger in which a plurality of heat exchange fins 4x are disposed to extend in the front-rear direction D1, and adjacent fins 4x are connected to each other by tubes 4y extending in the up-down direction D2. Air flows between these heat exchange fins 4x in the front-rear direction D1, so that heat exchange occurs between the air and the refrigerant. As shown by the dashed arrow in FIG. 5, in this embodiment, air flows through the condenser 4 from the front side to the rear side in the front-rear direction D1. The condenser 4 is housed in a condensation side inner case (condenser case) 400 in the housing 1. The condensation side inner case 400 exposes a part of the condenser 4 on both sides in the front-rear direction D1 as shown in FIG. 4, and covers the top surface 4a, the side surface 4b facing one side D3a in the width direction D3, the side surface 4d facing the other side D3b in the width direction D3, and the bottom surface 4e of the condenser 4 from the outside as shown in FIG.

[0023] (Condenser side blower) 4, the condenser-side blower 6 is provided in front of the condenser 4 in the front-rear direction D1 inside the housing 1. The condenser-side blower 6 draws in air (outside air) from an air inlet 13 (see FIG. 1) of the housing 1, circulates the air from the front to the rear through an air flow path between the fins 4x in the condenser 4, and exhausts the air that has exchanged heat with the condenser 4 from an exhaust port 15 (see FIG. 2).

[0024] (Evaporator) Returning to FIG. 3, the evaporator 3 is disposed above the condenser 4 in the housing 1. The evaporator 3 is a fin-and-tube type heat exchanger in which a plurality of heat exchange fins 3x are disposed to extend in the front-rear direction D1, and adjacent fins 3x are connected to each other by tubes 3y extending in the up-down direction D2. Air flows between these heat exchange fins 3x in the front-rear direction D1, so that heat exchange occurs between the air and the refrigerant. As shown by the dashed arrows in FIG. 5, in this embodiment, air flows from the rear side to the front side of the evaporator 3. The evaporator 3 is housed in an evaporation-side inner case 300 in the housing 1.

[0025] 6, the evaporator 3 is disposed above the condenser 4 in the housing 1 so as to overlap a portion of the upper surface 4a of the condenser 4. In order to ensure a heat exchange area in the condenser 4, the dimension of the condenser 4 in the width direction D3 is larger than the dimension of the evaporator 3 in the width direction D3.

[0026] The center position C3x of the evaporator 3 in the width direction D3 is offset toward one side D3a in the width direction D3 with respect to the center position C4x of the condenser 4 in the width direction D3. Therefore, the evaporator 3 is disposed above the condenser 4 so as to overlap a part of the upper surface 4a of the condenser 4. In this embodiment, the side surfaces 3b, 4b of the evaporator 3 and the condenser 4 facing the one side D3a in the width direction D3 are disposed at substantially the same positions in the width direction D3. The space above the region of the upper surface 4a of the condenser 4 that does not overlap with the evaporator 3 and is the region of the other side D3b in the width direction D3 with respect to the evaporator 3 is defined as the non-overlapping space S.

[0027] As shown in FIG. 7, a central position C3y of the evaporator 3 in the front-rear direction D1 is offset forward with respect to a central position C4y of the condenser 4 in the front-rear direction D1 (see FIG. 5).

[0028] (Evaporator side blower) The evaporator-side blower 5 is provided in the housing 1, rearward of the evaporator 3 in the front-rear direction D1. The evaporator-side blower 5 draws in air (outside air) from an air inlet 14 (see FIG. 2), circulates the air from the rear to the front through an air flow path between the fins 3x of the evaporator 3, and blows out the air (cold air) that has exchanged heat with the evaporator 3 from an air outlet 12 (see FIG. 1).

[0029] (Pressure reduction device) 4, the pressure reducing device 7 is a device that reduces the pressure of the refrigerant to expand it, and is configured by a capillary tube in this embodiment. The pressure reducing device 7 is disposed in the non-overlapping space S in the housing 1. That is, the pressure reducing device 7 is disposed on the other side D3b of the evaporator 3 in the width direction D3.

[0030] (Control device) The control device 8 has a board on which various electronic components including an inverter are mounted, and for example, controls the rotation speed of the motor that drives the compressor 2 by converting and outputting the voltage and frequency of the power supplied from the power source. The control device 8 also receives signals input to a control panel 11 (see FIG. 1) of the housing 1, and controls the refrigerant circuit according to the received signals. In this embodiment, the control device 8 is disposed on one side D3a in the width direction D3 opposite to the non-overlapping space S with respect to the evaporator 3 in the width direction D3.

[0031] (Compressor) Returning to Fig. 3, the compressor 2 is a device that compresses the refrigerant, and is disposed within the housing 1 on one side D3a of the condenser 4 in the width direction D3, and below the control device 8. In this embodiment, the compressor 2 is disposed adjacent to the condenser 4 in the width direction D3 at a position closer to the front of the condenser 4. In addition, an accumulator 2x that separates the refrigerant into gas and liquid is disposed in front of the compressor 2.

[0032] (Refrigerant piping) As shown in Figures 3 and 4, the refrigerant piping 9 includes a first piping 9a connecting the compressor 2 and the condenser 4, a second piping 9b connecting the condenser 4 and the pressure reducing device 7, a third piping 9c connecting the pressure reducing device 7 and the evaporator 3, and a fourth piping 9d connecting the evaporator 3 and the compressor 2.

[0033] The first piping 9a extends upward from the compressor 2 and then extends along the upper surface 4a of the condenser 4 toward the other side D3b in the width direction D3, and is connected to the condenser 4 at a condenser inlet 411 that is formed in the condensation side inner case 400 at a position toward the rear of the condenser 4 and opens into the non-overlapping space S and to one side D3a in the width direction D3.

[0034] The second piping 9b is disposed forward of the condenser inlet 411, extends upward from a condenser outlet 412 formed in the condensation side inner case 400 and opens upward into the non-overlapping space S, and then extends forward via a bent portion 9x to be connected to the pressure reducing device 7. That is, the second piping 9b is disposed adjacent to and behind the pressure reducing device 7.

[0035] The third pipe 9c extends upward from the pressure reducing device 7 and is connected to the evaporator 3 at an evaporator inlet 31 that is formed on the upper surface of the evaporation side inner case 300 at a position near the front of the evaporator 3 and opens to the other side D3b in the width direction D3. The fourth pipe 9d extends from the evaporator outlet 32, which is formed on the upper surface of the evaporation side inner case 300 behind the evaporator inlet 31 and opens to one side D3a in the width direction D3, along the upper surface 3a (see Figure 6) of the evaporator 3 to one side D3a in the width direction D3, and then extends downward along the side surfaces 3b, 4b (see Figure 6) of the evaporator 3 and the condenser 4 facing the one side D3a in the width direction D3, passes through the accumulator 2x, and is then connected to the compressor 2.

[0036] With the refrigerant piping 9 thus arranged, the refrigerant is compressed in the compressor 2 to a high temperature and high pressure state, and then flows into the condenser 4 through the first piping 9a to a low temperature and high pressure state. The refrigerant then flows into the pressure reducing device 7 through the second piping 9b to be decompressed to a low temperature and low pressure state, flows into the evaporator 3 through the third piping 9c to be evaporated to a high temperature and low pressure state, and then flows into the compressor 2 through the fourth piping 9d to be compressed again to a high temperature and high pressure state. By repeating this refrigeration cycle, the air conditioner 100 performs cooling operation.

[0037] (Drain water introduction path) 7, the drain water introduction path 20 introduces drain water W, which is formed by condensing moisture in the air and adheres to the evaporator 3, in the front-rear direction D1 toward the front surface 4c of the condenser 4. In this embodiment, the drain water introduction path 20 is formed at the bottom of the evaporation side inner case 300. The drain water introduction path 20 has a water introduction surface 21 that is disposed below the evaporator 3 and faces upward, and this water introduction surface 21 includes an inclined surface that slopes downward toward the rear. The rear end edge of the water introduction surface 21 is in close proximity to or in contact with the front surface 4c of the condenser 4.

[0038] (Drain water receiving part) The drain water receiving portion 40 constitutes the bottom of the condensation side inner case (condenser case) 400, and defines a collection space SS for collecting the drain water W. Specifically, as shown in Figures 8 and 9, the drain water receiving portion 40 has a receiving surface 41 for receiving the drain water W, a pair of side walls 42, a rear wall 43, and a front wall 44 rising upward from the receiving surface 41, a drain outlet 45 opening into the collection space SS on the receiving surface 41, and an extension wall 46 rising further upward from the rear wall 43.

[0039] The receiving surface 41 is disposed opposite the bottom surface 4e (see FIG. 6) of the condenser 4 to receive the drain water W, and extends in the front-rear direction D1 and the width direction D3. That is, the receiving surface 41 is a horizontal surface when the air conditioner 100 is disposed on a horizontal surface, and is not inclined relative to the horizontal surface.

[0040] Each of the pair of side walls 42 rises upward from the receiving surface 41 on the outer side in the width direction D3 with respect to the condenser 4. The control device 8 is provided on the further one side D3a in the width direction D3 of the side wall 42 arranged on one side D3a in the width direction D3.

[0041] The rear wall 43 rises upward from the receiving surface 41 behind the condenser 4. The upper end surface of the rear wall 43 forms a horizontal plane when the air conditioner 100 is installed on a horizontal plane, and the height dimension of the rear wall 43 is constant in the width direction D3.

[0042] The front wall 44 rises upward from the receiving surface 41 in front of the condenser 4. Furthermore, the front wall 44 is inclined forward as it goes upward, and a support leg 2a that becomes part of the compressor 2 is disposed below the front wall 44. The support leg 2a of the compressor 2 is fixed to the bottom plate 1x of the housing 1 below the front wall 44 (see FIG. 5). The entire compressor 2 may be disposed below the front wall 44.

[0043] The drain outlet 45 is formed in the rear wall 43 at a position near the end of the other side D3b in the width direction D3 (or the end of the other side D3b) of the rear wall 43, and opens to the rear side of the collection space SS and at a position near the end of the other side D3b in the width direction D3. Therefore, the drain outlet 45 in this embodiment opens to the downstream side in the ventilation direction (the flow direction of air that exchanges heat with the condenser 4) in the collection space SS. In addition, the drain outlet 45 is formed to expand upward from a position at the same height as the receiving surface 41. Here, an outer drain port 50 that opens to the rear side below the drain port 45 is provided in the bottom plate 1x of the housing 1. The outer drain port 50 is disposed at the same position in the width direction D3 as the drain port 45. As shown in Fig. 10, the drain port 45 and the outer drain port 50 are connected via a communication passage R formed between the condensation side inner case 400 and the bottom plate 1x, and the drain water W collected in the collection space SS is discharged to the outside of the housing 1 through the drain port 45, the outer drain port 50, and the communication passage R.

[0044] 8, the extension wall 46 rises further upward from the rear wall 43 on one side D3a in the width direction D3 relative to the drain outlet 45, and one end of the extension wall 46 in the width direction D3 is entirely connected to the side wall 42 disposed on the one side D3a in the width direction D3. The thickness dimension of the extension wall 46 in the front-rear direction D1 is smaller than that of the rear wall 43, and the extension wall 46 is disposed at a midpoint of the rear wall 43 in the front-rear direction D1.

[0045] The height dimension of the extension wall 46 from the rear wall 43 gradually increases from the other side D3b to the one side D3a in the width direction D3. That is, the extension wall 46 is triangular when viewed from the front-rear direction D1. When viewed from the front-rear direction D1, the angle θ between the upper surface 43a of the rear wall 43 and the upper surface 46a of the extension wall 46 is greater than 0 degrees and less than 20 degrees, for example, 15 degrees in this embodiment. The end portion 46b of the extension wall 46 on the other side D3b in the width direction D3 is located on the other side D3b in the width direction D3 with respect to the center position C4x (see FIG. 6) of the condenser 4 in the width direction D3 and the center position of the condensation side inner case 400.

[0046] Furthermore, the extension wall 46 has an opposing surface 46x that faces a rear surface 4f (see FIG. 7) that is part of the surface of the condenser 4 from the rear side of the condenser 4. Therefore, the extension wall 46 covers a part of the rear surface 4f of the condenser 4. The extension wall 46 is also disposed on one side D3a of the drain outlet 45, which is the same side as the control device 8 in the width direction D3.

[0047] (Action and effect) According to the air conditioner 100 of the present embodiment described above, the drain water W generated in the evaporator 3 is introduced through the drain water introduction path 20 onto the surface of the condenser 4 to cool the condenser 4, so that the drain water W flows further downward from the condenser 4. At this time, in the present embodiment, the drain water W is collected in the collection space SS in the drain water receiving portion 40.

[0048] A drain port 45 for discharging drain water is provided at a position near the end of the other side D3a in the width direction D3 of the collection space SS, and an extension wall 46 is provided on one side D3a in the width direction D3 relative to the drain port 45. Therefore, for example, when the air conditioner 100 is mounted on a vehicle, when the vehicle tilts and the end of the air conditioner 100 on one side D3a in the width direction D3 moves downward, the extension wall 46 can prevent the drain water W from the collection space SS from climbing over the rear wall 43 and leaking into the inside of the housing 1. On the other hand, when the air conditioner 100 tilts such that the end of the air conditioner 100 on the other side D3b in the width direction D3 moves downward, the drain water can be discharged from the drain port 45 to the outside of the housing 1. Therefore, regardless of the installation position of the air conditioner 100, the drain water W can be collected and reliably discharged to the outside of the housing 1.

[0049] Furthermore, the thickness dimension of the extension wall 46 in the front-rear direction D1 is smaller than that of the rear wall 43. For this reason, it is possible to avoid an increase in the weight of the entire air conditioner 100 and an increase in the dimension of the entire air conditioner 100 in the front-rear direction D1 due to the provision of the extension wall 46.

[0050] In addition, when the air conditioner 100 is tilted so that the end of the one side D3a in the width direction D3 of the air conditioner 100 moves downward, the water level of the drain water W in the collection space SS changes, but even in this case, the height dimension of the extension wall 46 gradually increases from the other side D3b in the width direction D3 toward the one side D3a, so that the water level thus changed can be aligned with the upper surface 46a of the extension wall 46. That is, by making the extension wall 46 triangular, the height of the extension wall 46 on the other side D3b in the width direction D3 can be suppressed, thereby suppressing the leakage of the drain water W without significantly blocking the flow of air to the condenser 4. In addition, in this embodiment, the extension wall 46 is provided so that the facing surface 46x of the extension wall 46 faces a part of the rear surface 4f of the condenser 4, so that the height of the extension wall 46 can be secured to a certain extent, and the leakage of the drain water W can be suppressed.

[0051] In addition, since the drain outlet 45 for the drain water W opens downstream in the flow direction of air flowing through the condenser 4, the drain water W can be easily discharged from the downstream side where the drain water W is more likely to accumulate.

[0052] In addition, because the front wall 44 of the drain water receiving portion 40 is inclined forward as it approaches the top, the drain water W that flows downward from near the front surface 4c of the condenser 4 can be guided to the rear side, which is the side of the drain outlet 45, improving the drainage efficiency of the drain water W. Furthermore, because the front wall 44 is inclined in this manner, the support legs 2a that are part of the compressor 2 can be disposed below the front wall 44. Therefore, the compressor 2 can be disposed close to the drain water receiving portion 40, making effective use of the space inside the housing 1 and reducing the dimension of the air conditioner 100 in the front-to-rear direction D1.

[0053] Furthermore, since the control device 8 is provided on one side D3a of the side wall 42 on one side D3a in the width direction D3 of the drain water receiving portion 40, the control device 8 is provided on the extension wall 46 side of the drain outlet 45. If the extension wall 46 were not provided, there is a possibility that the drain water W would climb over the rear wall 43 and leak out onto the control device 8 side when the air conditioner 100 is tilted, but in this embodiment, the extension wall 46 can suppress the leakage of the drain water W, so that the control device 8 can be prevented from being submerged by the drain water 8 and the control device 8 can be protected.

[0054] Furthermore, since the drain water receiving portion 40 constitutes the bottom portion of the condensation side inner case 400, the drain water receiving portion 40 is easy to form and install.

[0055] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and scope of the present invention. For example, the shape of the extension wall 46 of the drain water receiving portion 40 is not particularly limited, and may be, for example, a rectangular shape when viewed from the front-rear direction D1, or the upper surface 46a may be an arcuate surface.

[0056] The drain outlet 45 of the drain water receiving portion 40 may be provided at a position near the end of the other side D3b in the width direction D3 in the collection space SS or at the end of the other side D3b, and the position in the front-rear direction D1 is not particularly limited. For example, the drain outlet 45 may be formed in the side wall 42 and open in the width direction D3. [Industrial Applicability]

[0057] According to the air conditioner of the present invention, it is possible to collect and discharge drain water generated in the evaporator regardless of the installation position. [Explanation of symbols]

[0058] 1. Housing 2. Compressor 3. Evaporator 4…Condenser 7…Decompression device 8...Control device 9…Refrigerant piping 9a…First pipe 9b…Second piping 9b…Second piping 9c…Third Pipe 9d…The fourth pipe 20…Drain water introduction path 40…Drain water receiving part 41…Receiving surface 42…Side wall 43...Back wall 44...Front wall 45...Drain port 46…Extension wall 46x…opposite surface 100...Air conditioner 400…Condensation side inner case (condenser case) SS…Collection space W: Drain water D1…Anteroposterior direction D2…Vertical direction D3: Width direction

Claims

1. a refrigerant circuit including a compressor, a condenser, a pressure reducing device, an evaporator, and a refrigerant flow path connecting the compressor, the condenser, the pressure reducing device, and the evaporator, through which a refrigerant circulates; a drain water introduction passage disposed between the evaporator and the condenser below the evaporator, for introducing drain water generated in the evaporator to the condenser; a drain water receiving portion defining a collection space for collecting the drain water below the condenser; Equipped with The drain water receiving portion is a receiving surface facing a bottom surface of the condenser and receiving the drain water; a pair of side walls rising upward from the receiving surface on both outer sides in the width direction of the condenser; a side wall in the front-rear direction rising upward from the receiving surface on an outer side of the condenser on one side in a front-rear direction intersecting the width direction; a drain outlet that opens at a position near one side end in the width direction of the collection space or at the one side end and discharges the drain water from the collection space; An extension wall that rises further upward from the one side wall in the front-rear direction on the other side in the width direction with respect to the drain outlet and is connected to the side wall arranged on the other side in the width direction; An air conditioning device having the above structure.

2. 2. The air conditioner according to claim 1, wherein the extension wall has a height dimension from the one side wall in the front-rear direction that gradually increases from the one side to the other side in the width direction.

3. The condenser is disposed so as to perform heat exchange with air flowing in the front-rear direction, The air conditioner according to claim 1 , wherein the extension wall has an opposing surface that faces a part of a surface of the condenser from the one side in the front-rear direction of the condenser.

4. the one side in the front-rear direction on which the extension wall is disposed is a downstream side in a flow direction of air flowing through the condenser, The air conditioner according to claim 3 , wherein the drain outlet opens onto the downstream side of the collection space.

5. The drain water receiving portion further includes a second side wall in the front-rear direction rising upward from the receiving surface outside the condenser on the other side in the front-rear direction, The other side wall in the front-rear direction is inclined toward the other side in the front-rear direction as it extends upward, The air conditioner according to claim 1 , wherein at least a portion of the compressor is disposed below the other side wall in the front-rear direction.

6. The air conditioning apparatus according to claim 1 , further comprising a control device that controls the refrigerant circuit and is provided on the other side in the width direction relative to the side wall that is disposed on the other side in the width direction.

7. The condenser is disposed so as to perform heat exchange with air flowing in the front-rear direction, a condenser case that houses the condenser and exposes at least a portion of the condenser on both sides in the front-rear direction; 2. The air conditioner according to claim 1, wherein the drain water receiving portion constitutes a bottom portion of the condenser case.

8. 8. An air conditioner according to claim 1, which is mounted on a vehicle.

Images