Air conditioner

Abstract

To provide an air conditioner capable of guiding drain water from an evaporator to a condenser regardless of an installation posture and improving operation efficiency.SOLUTION: An air conditioner includes: a refrigerant circuit that is constituted by a compressor, a condenser 4, a decompression device, an evaporator 3 and a refrigerant flow passage connecting the compressor, the condenser 4, the decompression device and the evaporator 3 and in which a refrigerant circulates; and a drain water reception part 20 disposed between the evaporator 3 and the condenser 4 below the evaporator 3 and guiding drain water generated in the evaporator 3 toward a surface of the condenser 4 to a forward / backward direction D1 intersecting with a width direction D3 of the evaporator 3. The drain water reception part 20 includes: a reception surface 21 for receiving the drain water; and a plurality of guide projections 22 disposed at intervals in the width direction D3 and each projecting upwards from the reception surface 21 and extending in the forward / backward direction D1.SELECTED DRAWING: Figure 11

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] Patent Publication No. 2022-1798 Summary of the Invention [Problem to be solved by the invention]

[0005] However, if a conventional air conditioning unit such as that described in Patent Document 1 is installed in an uneven location or if it is mounted on a vehicle and tilts while it is moving, the drain water will not be properly guided from the evaporator to the condenser, resulting in a problem that the drain water cannot adequately cool the condenser.

[0006] SUMMARY OF THE PRESENT DISCLOSURE The present invention provides an air conditioner capable of directing drain water from an evaporator to a condenser regardless of the installation position, thereby improving operating efficiency. [Means for solving the problem]

[0007] An air conditioning unit according to one embodiment of the present invention comprises a refrigerant circuit comprising 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, and a drain water receiving portion arranged between the evaporator and the condenser below the evaporator, for directing drain water generated in the evaporator toward the surface of the condenser in a front-to-rear direction intersecting the width direction of the evaporator, the drain water receiving portion having a receiving surface for receiving the drain water, and a plurality of guide protrusions arranged at intervals from each other in the width direction, each protruding upward from the receiving surface and extending in the front-to-rear direction.

[0008] In the above air conditioning device, the drain water receiving part includes a receiving part main body that includes a part of the receiving surface as a main body side receiving surface and collects the drain water, and a guide part that includes a part of the receiving surface as a guide side receiving surface, has one end edge connected to the receiving part main body and the other end edge close to or in contact with the surface of the condenser, and the guide side receiving surface is positioned lower than the main body side receiving surface, and the multiple guide protrusions may include multiple body side protrusions provided on the main body side receiving surface of the receiving part main body part, and / or multiple guide side protrusions provided on the guide side receiving surface of the guide part.

[0009] In the above air conditioning device, the guide portion has a larger dimension in the width direction than the receiving portion main body, the multiple guide protrusions have multiple guide side protrusions, and the number of the guide side protrusions provided in a portion of the width direction of the guide portion whose width direction position coincides with the receiving portion main body (hereinafter, width direction coincident portion) may be greater than the number of the guide side protrusions provided in a portion of the width direction of the guide portion whose width direction position differs from the receiving portion main body (hereinafter, width direction mismatched portion).

[0010] In the air conditioning device, the guide-side projections may be provided only at the widthwise coincident portion of the guide portion.

[0011] In the above air conditioning device, the guide portion is arranged to protrude from the receiving body to one side in the width direction, and each of the multiple guide side protrusions may be inclined toward the one side in the width direction from the side of the one edge of the guide portion toward the side of the other edge.

[0012] In the above air conditioning device, the multiple guide protrusions include multiple guide side protrusions, and when the end of each of the multiple guide side protrusions on the side of the one edge of the guide portion is defined as a guide base end and the end on the side of the other edge is defined as a guide tip end, the distance between the guide tips of each of the multiple guide side protrusions may be greater than the distance between the guide base ends.

[0013] In the above air conditioning device, the evaporator and the condenser are positioned to exchange heat with the air circulating in the fore-and-aft direction, the multiple guide protrusions include multiple main body side protrusions, and the drain water flow path formed by the main body side protrusions and the receiving surface adjacent in the width direction may be provided with a widthwise protrusion portion protruding upward from the receiving surface in a portion of the width direction of the flow path.

[0014] In the above air conditioning device, the width-direction protrusions may be provided in multiple units in one flow path at intervals in the front-to-rear direction, and multiple width-direction protrusions provided in one flow path and adjacent to each other in the front-to-rear direction may be positioned at offset positions in the width direction.

[0015] In the above air conditioning device, when a plurality of widthwise protrusions provided in one flow path and adjacent to each other in the front-to-rear direction are defined as a first protrusion and a second protrusion, the first protrusion may be connected to one of the body side protrusions adjacent to each other in the width direction, and the second protrusion may be connected to the other of the body side protrusions adjacent to each other in the width direction and overlap the first protrusion when viewed from the front-to-rear direction.

[0016] The air conditioner may be installed in a vehicle. Effect of the Invention

[0017] According to the above air conditioner, drain water can be guided from the evaporator to the condenser regardless of the installation position, thereby making it possible to improve the operating efficiency. [Brief description of the drawings]

[0018] [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 an evaporation-side inner case of an evaporator in the air conditioning device. FIG. [Figure 9] 4 is a top view of a bottom portion of an evaporation-side inner case of an evaporator in the air conditioning device. FIG. [Figure 10] 11 is a side view of the bottom of the evaporation-side inner case of the evaporator in the air conditioning device, as viewed from the other side in the width direction. FIG. [Figure 11] 11 is a cross-sectional view of the evaporation side inner case of the evaporator in the air conditioning device, taken along the line XX in FIG. 10, showing a part of a drain water receiving portion constituting the evaporation side inner case. FIG. [Figure 12] 11 is a diagram showing a modified example of the drain water receiving portion, and is a cross-sectional view taken at a position corresponding to the cross section XX in FIG.

[0019] 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.

[0020] 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.

[0021] 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 receiver 20 that guides drain water W generated in the evaporator 3 to the condenser 4.

[0022] (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.

[0023] 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.

[0024] (Condenser) As shown in FIG. 4, the condenser 4 is disposed at the bottom of 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 from the front side to the rear side of the condenser 4 in the front-rear direction D1. The condenser 4 is housed in a condensation side inner case 400 in the housing 1.

[0025] (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).

[0026] (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.

[0027] 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.

[0028] 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.

[0029] 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).

[0030] (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).

[0031] (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.

[0032] (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.

[0033] (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.

[0034] (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.

[0035] 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 41 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.

[0036] The second piping 9b is disposed forward of the condenser inlet 41, extends upward from a condenser outlet 42 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.

[0037] 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.

[0038] 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.

[0039] (Drain water receiving part) Next, the drain water receiving portion 20 will be described in detail with reference to FIGS. 7, the drain water receiving portion 20 guides 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 receiving portion 20 constitutes the bottom of the evaporation side inner case 300.

[0040] As shown in Figure 8, the drain water receiving part 20 specifically has a receiving part main body 200 including a part of the receiving surface 21 arranged below the evaporator 3, a guide part 210 including a part of the receiving surface 21, and a plurality of guide protrusions 22 protruding upward from the receiving surface 21.

[0041] As shown in Figure 9, the receiving surface 21 has a front receiving surface 21x that extends from a position forward of the front surface 3c of the evaporator 3 (see Figure 7) to approximately the center of the evaporator 3, which is the midpoint in the front-to-rear direction D1, a rear receiving surface 21y that is positioned rearward of the front receiving surface 21x with a gap SS therebetween and extends to a position rearward of the back surface 3d of the evaporator 3 (see Figure 7), and a guide receiving surface 21z that is connected to the front receiving surface 21x and extends rearward from the gap SS. The front receiving surface 21x is an inclined surface that slopes downward from the front side to the rear side, while the rear receiving surface 21y is a non-inclined surface (a horizontal surface when the air conditioner 100 is installed on a horizontal surface) that extends in the front-rear direction D1 along the bottom surface 3e (see FIG. 7) of the evaporator 3. The guide-side receiving surface 21z is an inclined surface that slopes downward from the front side to the rear side.

[0042] (Receiving part body) The receiving body 200 includes a front receiving surface 21x and a rear receiving surface 21y as a main body side receiving surface as part of the receiving surface 21, and collects the drain water W. The collected drain water W flows into the guide part 210 described later through the gap SS.

[0043] (Guide section) The guide portion 210 includes a guide-side receiving surface 21z as a part of the receiving surface 21. As shown in Fig. 10, a front end edge 210a of the guide portion 210 is connected to the receiving portion main body 200 in the gap SS, and a rear end edge 210b of the guide portion 210 is in close proximity to or in contact with a front surface 4c (see Fig. 7) which is the surface of the condenser 4. The guide-side receiving surface 21z is located below the front receiving surface 21x and the rear receiving surface 21y, and is connected to the front receiving surface 21x via a step surface 21a which forms an inner surface facing the rear side in the gap SS as shown in Fig. 11. The guide portion 210 is made of a soft material such as resin so as to be elastically contactable with the condenser 4.

[0044] Furthermore, the guide portion 210 has a larger dimension in the width direction D3 than the receiving body 200, and is provided so as to protrude from the receiving body 200 only to the other side D3b in the width direction D3. The end of the guide portion 210 on one side D3a in the width direction D3 is disposed at approximately the same position in the width direction D3 as the end of the receiving body 200 on one side D3a in the width direction D3. As a result, the receiving body 200 is disposed over the entire width direction D3 of the evaporator 3, and the guide portion 210 is disposed over the entire width direction D3 of the condenser 4. Hereinafter, a part of the guide portion 210 in the width direction D3, which is a part of the guide portion 210 whose position in the width direction D3 coincides with that of the receiving body 200, is defined as a width direction coincident part 210x, and a part (remaining part) of the guide portion 210 in the width direction D3, which is a part of the guide portion 210 whose position in the width direction D3 differs from that of the receiving body 200, is defined as a width direction mismatch part 210y.

[0045] (Guide protrusion) The guide projections 22 include a plurality of main body projections 22x provided on the front receiving surface 21x and the rear receiving surface 21y of the receiving body 200, and a plurality of guide projections 22z provided on the guide receiving surface 21z of the guide portion 210.

[0046] Each of the multiple body side protrusions 22x extends in the front-rear direction D1 between the front side receiving surface 21x and the rear side receiving surface 21y and protrudes upward from these receiving surfaces 21x, 21y. The body side protrusions 22x are arranged at intervals in the width direction D3, and a body side flow path FC1 that serves as a flow path for the drain water W is formed by the body side protrusions 22x and the receiving surfaces 21x, 21y adjacent to each other in the width direction D3.

[0047] (width direction protrusion) In addition, in a part of the width direction D3 in each of the main body side flow paths FC1, width direction protrusions 23 protruding upward from the receiving surfaces 21x, 21y are provided. A plurality of width direction protrusions 23 are provided in each of the main body side flow paths FC1 at intervals in the front-rear direction D1, and the plurality of width direction protrusions 23 provided in one main body side flow path FC1 and adjacent to each other in the front-rear direction D1 are arranged at positions shifted in the width direction D3 (excluding the flow paths FC1 at both ends in the width direction D3). More specifically, in this embodiment, when one of the plurality of width direction protrusions 23 adjacent to each other in the front-rear direction D1 is the first protrusion 23a and the other is the second protrusion 23b, the first protrusion 23a is connected to only one of the main body side protrusions 22x adjacent to each other in the width direction D3 (the protrusion 22x on one side D3a in the width direction D3). The second protrusion 23b is connected to only the other of the main body side protrusions 22x adjacent in the width direction D3 (the protrusion 22x on the other side D3b in the width direction D3), and overlaps with the first protrusion 23a when viewed from the front-rear direction D1.

[0048] Furthermore, each of the widthwise protrusions 23 contacts a bottom surface 3e (see FIG. 7) of the evaporator 3 to support the evaporator 3 from below.

[0049] (Guide side protrusion) Each of the guide-side projections 22z extends in the front-rear direction D1 on the guide-side receiving surface 21z and projects upward from the guide-side receiving surface 21z. The guide-side projections 22z are spaced apart from one another in the width direction D3, and a guide-side flow path FC2 that serves as a flow path for the drain water W is formed by the guide-side projections 22z and the guide-side receiving surfaces 21z adjacent to each other in the width direction D3. The guide-side projections 22z also function as ribs that improve the strength of the guide portion 210.

[0050] In this embodiment, the guide-side projections 22z are provided only on the widthwise coincident portions 210x of the guide portions 210.

[0051] In addition, in each of the multiple guide side protrusions 22z, when the end on the side of the front edge 210a (as shown in the figure) of the guide portion 210 is defined as the guide base end 221 and the end on the side of the rear edge 210b is defined as the guide tip 222, the guide tip 222 is located forward of the rear edge 210b, and the guide base end 221 is located at the same position in the front-to-rear direction D1 as the front edge of the guide side receiving surface 21z and is connected to the step surface 21a.

[0052] (Action and effect) According to the air conditioner 100 of the present embodiment described above, the drain water receiving portion 20 that guides the drain water W generated in the evaporator 3 to the surface of the condenser 4 is provided with a plurality of guide projections 22, so that the drain water W dripping from the evaporator 3 can be guided in the front-rear direction D1 toward the condenser 4. Therefore, even if the air conditioner 100 is installed in an unlevel location or is mounted on a vehicle and tilted while traveling, the drain water W can be reliably guided toward the condenser 4, and the condenser 4 can be cooled by the drain water W, thereby improving the operating efficiency of the air conditioner 100.

[0053] Furthermore, since the rear end edge 210b of the guide portion 210 is close to or in contact with the front surface 4c which is the surface of the condenser 4, the drain water W can be more reliably guided by the guide portion 210 toward the condenser 4. Also, since the multiple guide projections 22 have main body side projections 22x provided on the receiving surfaces 21x, 21y of the receiving portion main body 200 and guide side projections 22z provided on the guide side receiving surface 21z of the guide portion 210, the collected drain water W can be guided between the receiving portion main body 200 and the guide portion 210 so as to always head in the front-rear direction D1.

[0054] Further, the guide side projections 22z are provided only in the widthwise coincident portion 210x of the guide portion 210. That is, the guide side projections 22z are disposed within the region of the guide portion 210 where the receiving portion main body 200 is provided in the width direction D3. In this manner, the guide side projections 22z are provided only at positions necessary and sufficient for guiding the drain water W that has flowed from the receiving portion main body 200 into the guide portion 210, and the drain water W can be guided to the condenser 4 while keeping the number of the guide side projections 22z to a minimum.

[0055] Further, the flow path FC1 of the drain water W in the receiving body 200 is provided with a width direction protrusion 23. This makes it possible to prevent a part of the air flowing in the front-rear direction D1 through the evaporator 3 and the condenser 4 from flowing in the front-rear direction D1 through the flow path FC1, and it is possible to block the flow of air that is not used for heat exchange in the evaporator 3 and the condenser 4. This improves the heat exchange efficiency, leading to improved operation efficiency of the air conditioner 100. In particular, the width direction protrusion 23 in this embodiment contacts the bottom surface 3e (see FIG. 7) of the evaporator 3 and supports the evaporator 3 from below, so that the effect of blocking the air flow through the flow path FC1 is extremely high.

[0056] In addition, since the widthwise protrusions 23 adjacent to each other in the fore-and-aft direction D1 in one flow path FC1 are positioned at positions offset in the width direction D3, air attempting to flow through the flow path FC1 reliably comes into contact with the widthwise protrusions 23 and is blocked, thereby further enhancing the effect of blocking the air flow through the flow path FC1.

[0057] 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. 12, each of the guide-side projections 22z may be inclined toward the other side D3b in the width direction D3 from the front edge 210a side to the rear edge 210b side of the guide portion 210. In this case, the drain water W from the receiving portion main body 200 can be guided to the widthwise mismatching portion 210y protruding from the receiving portion main body 200 in the guide portion 210, and the drain water W can be brought into contact with a wide range even with the condenser 4, which has a larger dimension in the width direction D3 than the evaporator 3, and the cooling effect of the condenser 4 can be improved. As shown in FIG. 12, the inclination angle of the guide side protrusion 22z may be increased from one side D3a toward the other side D3b in the width direction D3, and the guide side protrusion 22z located on the other side D3b may be arranged so that the guide side protrusion 22z is more inclined toward the rear end edge 210b than toward the widthwise mismatch portion 210y, that is, so that the distance between the guide tips 222 of adjacent guide side protrusions 22z is greater than the distance between the guide base ends 221, but the angle of each guide side protrusion 22z is not particularly limited, and all guide side protrusions 22z may be arranged to be inclined at the same angle.

[0058] In addition, even if there is no widthwise mismatched portion 210y protruding from the receiving body 200 in the guide portion 210 and the dimensions in the width direction D3 of the guide portion 210 and the receiving body 200 are equivalent, by making the distance between the guide tips 222 larger than the distance between the guide base ends 221, the drain water W can be spread on both sides D3a, D3b in the width direction D3 in the guide portion 210, allowing it to come into contact with the condenser 4 over a wide area.

[0059] In addition, the guide side protrusion 22z is not limited to being provided only in the widthwise coincident portion 210x in the guide portion 210 where the position in the width direction D3 coincides with the receiving portion main body 200. For example, the number of guide side protrusions 22z provided in the widthwise coincident portion 210x may be greater than the number of guide side protrusions 22z provided in the widthwise mismatched portion 210y. Specifically, as shown in FIG. 12, the guide side protrusion 22z located on the other side D3b of the width direction D3 is inclined in the width direction D3, so that a part of this guide side protrusion 22z is disposed in the widthwise mismatched portion 210y. In this case, only one guide side protrusion 22z is provided in the widthwise mismatched portion 210y, while multiple guide side protrusions 22z are provided in the widthwise coincident portion 210x.

[0060] Moreover, it is not always necessary to provide both the main body side projection 22x and the guide side projection 22z. [Industrial Applicability]

[0061] According to the air conditioner of the present invention, drain water can be guided from the evaporator to the condenser regardless of the installation position, thereby making it possible to improve operating efficiency. [Explanation of symbols]

[0062] 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 receiving section 21…Receiving surface 21x…Front receiving surface 21y...Rear receiving surface 21z…Guide side receiving surface 22...Guide protrusion 22x…Main body side protrusion 22z…Guide side protrusion 23…Width direction protrusion 23a...first protrusion 23b...Second protrusion 100...Air conditioner 200…Receiving part body 210…Guide section 210a...Front edge 210b...Rear edge 210x…Width direction matching part 210y…Width direction mismatch area 221...Guide base end 222…Guide tip D1…Anteroposterior direction D2…Vertical direction D3: Width direction FC1…Body side flow path FC2: Guide side flow passage S: Non-overlapping space SS…Gap W: Drain water

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 receiver disposed between the evaporator and the condenser below the evaporator, for guiding drain water generated in the evaporator toward a surface of the condenser in a front-rear direction intersecting with a width direction of the evaporator; Equipped with The drain water receiving portion is A receiving surface for receiving the drain water; a plurality of guide protrusions disposed at intervals in the width direction, each protruding upward from the receiving surface and extending in the front-rear direction; An air conditioning device having the above structure.

2. The drain water receiving portion is A receiving body including a part of the receiving surface as a body side receiving surface and collecting the drain water; a guide portion including a part of the receiving surface as a guide-side receiving surface, one end edge of which is connected to the receiving portion main body and the other end edge of which is close to or in contact with the surface of the condenser, and the guide-side receiving surface is located below the main body-side receiving surface; having The air conditioning device of claim 1 , wherein the plurality of guide protrusions include a plurality of main body side protrusions provided on the main body side receiving surface of the receiving portion main body, and / or a plurality of guide side protrusions provided on the guide side receiving surface of the guide portion.

3. The guide portion has a larger dimension in the width direction than the receiving portion main body, The plurality of guide projections include a plurality of the guide-side projections, The air conditioning device of claim 2, wherein the number of guide side protrusions provided in a portion of the width direction of the guide portion, whose width direction position coincides with that of the receiving body (hereinafter, the width direction coincident portion), is greater than the number of guide side protrusions provided in a portion of the width direction of the guide portion, whose width direction position differs from that of the receiving body (hereinafter, the width direction mismatched portion).

4. The air conditioning device according to claim 3 , wherein the guide-side projections are provided only at the widthwise coincident portion of the guide portion.

5. The guide portion is provided so as to protrude from the receiving portion main body to one side in the width direction, The air conditioner according to claim 3 , wherein each of the guide-side projections is inclined toward the one side in the width direction from the one end edge side to the other end edge side of the guide portion.

6. The plurality of guide projections include a plurality of the guide-side projections, 3. The air conditioning device of claim 2, wherein when the end of each of the multiple guide side protrusions on the side of the one edge of the guide portion is defined as a guide base end and the end of each of the multiple guide side protrusions on the side of the other edge is defined as a guide tip end, the distance between the guide tips of each of the multiple guide side protrusions is greater than the distance between the guide base ends.

7. the evaporator and the condenser are disposed so as to exchange heat with air flowing in the front-rear direction, The plurality of guide projections include a plurality of the main body side projections, The air conditioning device according to claim 2, wherein the drain water flow path formed by the body side protrusions and the receiving surface adjacent in the width direction is provided with a widthwise protrusion portion that protrudes upward from the receiving surface in a portion of the width direction of the flow path.

8. The width direction protrusion portion is provided in a plurality of width directions in one flow path at intervals in the front-rear direction, The air conditioner according to claim 7 , wherein the width direction protrusions provided in one of the flow paths and adjacent to each other in the front-rear direction are arranged at positions shifted from each other in the width direction.

9. 9. The air conditioning device of claim 8, wherein when a plurality of width-direction protrusions provided in one flow path and adjacent to each other in the front-to-rear direction are defined as a first protrusion and a second protrusion, the first protrusion is connected to one of the body-side protrusions adjacent to each other in the width direction, and the second protrusion is connected to the other of the body-side protrusions adjacent to each other in the width direction and overlaps with the first protrusion when viewed from the front-to-rear direction.

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

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