Air conditioning device

Abstract

Provided is an air conditioning device capable of guiding drain water from an evaporator to a condenser irrespective of an installation posture, thereby improving operation efficiency. Comprising a refrigerant loop which is composed of a compressor, a condenser (4), a pressure reducing device, an evaporator (3) and a refrigerant flow channel and is used for refrigerant circulation, and the refrigerant flow channel is connected with the compressor, the condenser (4), the pressure reducing device and the evaporator (3); and a drain receiving part (20) which is disposed between the evaporator (3) and the condenser (4) below the evaporator (3), guides drain generated by the evaporator (3) toward the surface of the condenser (4) in a front-back direction (D1) intersecting with the width direction (D3) of the evaporator (3), and has a receiving surface (21) for receiving the drain and a plurality of guide protrusions (22). The plurality of guide protrusions are disposed at intervals in the width direction (D3), each of the guide protrusions protruding upward from the receiving surface (21), and extending in the front-rear direction (D1).

Description

Technical Field

[0001] The present invention relates to an air conditioning device. Background Art

[0002] Conventionally, there is known an air conditioning apparatus in which a compressor, a condenser, a pressure reducing device, an evaporator, a blower, a control device, and the like constituting a refrigerant circuit are housed in a single casing.

[0003] In such an air conditioner, as described in Patent Document 1, for example, a condenser (radiator) is arranged below an evaporator, and the drain water generated by the evaporator flows down and contacts the condenser to cool the condenser, thereby improving the efficiency of the refrigeration cycle.

[0004] Patent Document 1: Japanese Patent Application Laid-Open No. 2022-1798

[0005] However, when the conventional air conditioner described in Patent Document 1 is installed in a non-horizontal location or is mounted on a vehicle that tilts while traveling, the drain water cannot be properly guided from the evaporator to the condenser, resulting in insufficient cooling of the condenser by the drain water. Summary of the Invention

[0006] Therefore, the present invention provides an air conditioning apparatus capable of guiding drain water from an evaporator to a condenser regardless of the installation posture, thereby improving operation efficiency.

[0007] An air-conditioning device according to one embodiment of the present invention includes: a refrigerant circuit, which is composed of a compressor, a condenser, a pressure reducing device, an evaporator and a refrigerant flow channel for circulating refrigerant, and the refrigerant flow channel connects the compressor, the condenser, the pressure reducing device and the evaporator; and a drainage receiving portion, which is arranged between the evaporator and the condenser below the evaporator, and guides the drainage generated in the evaporator toward the surface of the condenser in the front-to-back direction intersecting with the width direction of the evaporator, and the drainage receiving portion has: a receiving surface for catching the drainage; and a plurality of guide protrusions, which are arranged at intervals from each other in the width direction, protrude upward from the receiving surface and extend in the front-to-back direction.

[0008] In the above-mentioned air-conditioning device, the drainage receiving part may also include: a receiving part main body, including a part of the receiving surface as a main body side receiving surface, and collecting the drainage; and a guide part, including a part of the receiving surface as a guide side receiving surface, one end edge is connected to the receiving part main body, and the other end edge is close to or contacts the surface of the condenser, and the guide side receiving surface is located below relative to the main body side receiving surface, and the multiple guide protrusions have multiple main body side protrusions of the main body side receiving surface arranged in the receiving part main body, and / or multiple guide side protrusions of the guide side receiving surface arranged in the guide part.

[0009] In the above-mentioned air-conditioning device, the guide portion may be larger in dimension in the width direction than the receiving portion main body, the plurality of guide protrusions may have a plurality of guide side protrusions, and the number of the guide side protrusions provided in a portion in the width direction of the guide portion and a portion whose position in the width direction is consistent with that of the receiving portion main body (hereinafter referred to as a width direction consistent portion) is greater than the number of the guide side protrusions provided in a portion in the width direction of the guide portion and a portion whose position in the width direction is different from that of the receiving portion main body (hereinafter referred to as a width direction inconsistent portion).

[0010] In the above-mentioned air conditioning apparatus, the plurality of guide-side protrusions may be provided only in the widthwise uniform portion of the guide portion.

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

[0012] In the above-mentioned air-conditioning device, the plurality of guide protrusions may also have a plurality of guide side protrusions. In each of the plurality of guide side protrusions, when the end portion on the one end edge side of the guide portion is defined as a guide base end, and the end portion on the other end edge side is defined as a guide top end, the interval between the guide top ends in each of the plurality of guide side protrusions is greater than the interval between the guide base ends.

[0013] In the above-mentioned air-conditioning device, the evaporator and the condenser can also be configured to perform heat exchange with the air flowing in the front-to-back direction, and the plurality of guide protrusions have a plurality of main body side protrusions, and a width-directional protrusion is provided in the drainage flow channel formed by the main body side protrusions and the receiving surface adjacent along the width direction, and the width-directional protrusion protrudes upward from the receiving surface in a portion of the width direction in the flow channel.

[0014] In the above-mentioned air-conditioning device, a plurality of width-direction protrusions may be arranged at intervals in the front-to-back direction in one of the flow channels, and the plurality of width-direction protrusions arranged in one of the flow channels and adjacent to each other in the front-to-back direction may be arranged at staggered positions in the width direction.

[0015] In the above-mentioned air-conditioning device, when a plurality of width-direction protrusions arranged in one of the flow channels and adjacent to each other in the front-to-back direction are set as a first protrusion and a second protrusion, the first protrusion is connected to one of the main body side protrusions adjacent to each other in the width direction, and the second protrusion is connected to the other of the main body side protrusions adjacent to each other in the width direction, and overlaps with the first protrusion when viewed from the front-to-back direction.

[0016] The above-mentioned air conditioning device may also be mounted on a vehicle.

[0017] According to the above-described air conditioning apparatus, the drain water can be guided from the evaporator to the condenser regardless of the installation posture, thereby improving the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a perspective view of the air conditioning apparatus according to the embodiment of the present invention as viewed obliquely from the front. Figure 2 This is a perspective view of the air conditioning device as viewed from the rear. Figure 3 This is a perspective view of the air conditioner as viewed from an oblique front, and is a view showing a portion of a casing removed for ease of explanation. Figure 4 This is a perspective view of the air conditioner as viewed from an oblique rear side, and is a view showing a portion of a casing removed for ease of explanation. Figure 5 This is a side view of the air conditioning apparatus as viewed from the other side in the width direction. Figure 6 is a longitudinal sectional view of the air conditioning device, and is Figure 5 VV cross-section diagram. Figure 7 is a longitudinal sectional view of the air conditioning device, and is Figure 4 Section IV-IV of . Figure 8 It is a perspective view of the bottom of the evaporation-side inner casing of the evaporator in the above-mentioned air-conditioning apparatus. Figure 9 It is a plan view of the bottom portion of the evaporation-side inner casing of the evaporator in the above-mentioned air-conditioning apparatus. Figure 10 This is a side view of the bottom portion of the evaporation-side inner case of the evaporator in the air-conditioning apparatus as viewed from the other side in the width direction. Figure 11 This is a cross-sectional view of the evaporation side inner casing of the evaporator in the above-mentioned air conditioning device, and shows a portion of the drainage receiving portion constituting the evaporation side inner casing. Figure 10 XX cross-section diagram. Figure 12This is a diagram showing a modified example of the above-mentioned drainage receiving portion, and is equivalent to Figure 10 Cross-sectional view at the location of XX section. DETAILED DESCRIPTION

[0019] The air conditioning apparatus 100 according to the embodiment of the present invention is described below. The air conditioning apparatus 100 according to the embodiment is, for example, a small air conditioning apparatus such as a spot cooler for cooling mounted on a vehicle, but is not particularly limited in installation location or size. (Overall structure) like Figure 1 and Figure 2 As shown, the air conditioning device 100 includes a box 1, as shown in FIG. Figure 3 and Figure 4 As shown, the air-conditioning device 100 also 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 housed in the box body 1, and is provided with a refrigerant piping 9, which connects the compressor 2, the condenser 4, the evaporator 3 and the pressure reducing device 7 to form a refrigerant flow path for allowing the refrigerant to flow between these structural elements.

[0020] In addition, for the sake of explanation, Figure 3 It is from Figure 1 The overall view shown is a view showing the air conditioning apparatus 100 by removing the portion of the cabinet 1 except for the bottom plate 1x. Figure 4 It is from Figure 2 The overall view shown is a view showing the air conditioning apparatus 100 by removing the portion of the cabinet 1 except for the bottom plate 1 x.

[0021] The compressor 2, the condenser 4, the pressure reducing device 7, the evaporator 3, and the refrigerant piping 9 constitute a refrigerant circuit that circulates the refrigerant 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 conditioning apparatus 100 further includes a drain receiving portion 20 for guiding drain water W generated in the evaporator 3 to the condenser 4.

[0022] (Box) return Figure 1 The housing 1 is generally in the shape of a rectangular parallelepiped. A control panel 11, an air outlet 12, and an air inlet 13 are provided on the front face 1a of the housing 1 facing the front-back direction D1. The control panel 11 is provided so as to be located in the control device 8 (see FIG. Figure 3 ) in front of the evaporator 3 (see FIG. 1 ) and the control device 8 can be operated. Figure 3) in front of the evaporator 3 and blows out the air (cold air) that has passed through the evaporator 3. Furthermore, the air intake 13 is provided so as to be located at the condenser side blower 6 (refer to Figure 3 ) in front of the condenser 4 so that the air enters the box 1 toward the condenser 4.

[0023] In addition, if Figure 2 As shown, an air inlet 14 and an air outlet 15 are provided on the back side 1b of the housing 1 facing the front-back direction D1. The air inlet 14 is provided so as to be located at the evaporator side blower 5 (see FIG. 1 ) housed in the housing 1. Figure 4 ) behind the condenser 4 (see FIG. 1 ) so that air flows into the housing 1 toward the evaporator 3. Figure 4 ) and blows out the air (exhaust) that has passed through the condenser 4.

[0024] (Condenser) like Figure 4 As shown, the condenser 4 is arranged at the lower part of the housing 1. The condenser 4 is a fin-tube type heat exchanger, and a plurality of heat exchange fins 4x are arranged to extend in the front-to-back direction D1, and adjacent fins 4x are connected to each other by tubes 4y extending in the up-down direction D2. Moreover, by causing air to flow between these heat exchange fins 4x in the front-to-back direction D1, heat exchange is performed between the air and the refrigerant. Figure 5 As shown by the dotted arrows, in this embodiment, air flows from the front side to the rear side in the front-rear direction D1 in the condenser 4. In addition, the condenser 4 is accommodated in the condensation-side inner case 400 in the cabinet 1.

[0025] (Condenser side blower) return Figure 4 The condenser side blower 6 is provided in front of the condenser 4 in the front-back direction D1 in the housing 1. The condenser side blower 6 is provided from the air inlet 13 (refer to Figure 1 ) to draw in air (external air), causing the air to flow from the front side to the rear side through the air flow path between the fins 4x in the condenser 4, and the air that has exchanged heat with the condenser 4 is discharged from the exhaust port 15 (refer to Figure 2 )discharge.

[0026] (Evaporator) return Figure 3 The evaporator 3 is arranged above the condenser 4 in the housing 1. The evaporator 3 is a fin-tube heat exchanger, and a plurality of heat exchange fins 3x are arranged to extend in the front-to-back direction D1, and adjacent fins 3x are connected to each other by tubes 3y extending in the up-down direction D2. Moreover, by causing air to flow between these heat exchange fins 3x in the front-to-back direction D1, heat exchange is performed between the air and the refrigerant. Figure 5 As shown by the dotted arrows, in this embodiment, air flows from the rear side to the front side in the evaporator 3. In addition, the evaporator 3 is accommodated in the evaporation-side inner case 300 in the cabinet 1.

[0027] In this Figure 6 As shown, the evaporator 3 is arranged above the condenser 4 in the housing 1 so as to overlap a portion of the upper surface 4a of the condenser 4. To ensure a sufficient heat exchange area in the condenser 4, the width D3 of the condenser 4 is larger than the width D3 of the evaporator 3.

[0028] Furthermore, the center position C3x of the evaporator 3 in the width direction D3 is offset toward one side D3a in the width direction D3 relative to the center position C4x of the condenser 4 in the width direction D3. Therefore, the evaporator 3 is arranged above the condenser 4 so as to overlap a portion of the upper surface 4a of the condenser 4. Furthermore, in this embodiment, the side surfaces 3b and 4b of the evaporator 3 and the condenser 4 facing one side D3a in the width direction D3 are arranged at approximately the same positions in the width direction D3. Furthermore, the space above the area of ​​the upper surface 4a of the condenser 4 that does not overlap with the evaporator 3 and is located on the other side D3b in the width direction D3 relative to the evaporator 3 is defined as a non-overlapping space S.

[0029] In addition, if Figure 7 As shown, the center position C3y of the evaporator 3 in the front-back direction D1 is offset forward relative to the center position C4y of the condenser 4 in the front-back direction D1 (see FIG. Figure 5 ).

[0030] (Evaporator side blower) The evaporator-side blower 5 is provided in the rear of the evaporator 3 in the front-rear direction D1 in the housing 1. The evaporator-side blower 5 is provided from the air intake port 14 (see Figure 2 ) inhales air (external air), and makes the air flow from the rear side to the front side through the air flow path between the fins 3x in the evaporator 3, and the air (cold air) that has exchanged heat with the evaporator 3 is blown out from the air outlet 12 (refer to Figure 1 ) blow out.

[0031] (Pressure Reducing Device) return Figure 4 The decompression device 7 is a device that decompresses and expands the refrigerant. In this embodiment, it is composed of a capillary tube. Furthermore, the decompression device 7 is disposed in the non-overlapping space S within the housing 1. Specifically, the decompression 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 substrate on which various electronic components including an inverter are mounted, and controls the rotational speed of the motor driving the compressor 2 by converting the voltage and frequency of the power supplied from the power source and outputting the converted power. In addition, the control device 8 receives input from the control panel 11 (see FIG. Figure 1 In this embodiment, the control device 8 is arranged on one side D3a in the width direction D3 opposite to the non-overlapping space S in the width direction D3 relative to the evaporator 3.

[0033] (compressor) return Figure 3 The compressor 2 is a device for compressing the refrigerant and is disposed within the housing 1 on one side D3a in the width direction D3 relative to the condenser 4 and below the control device 8. Furthermore, 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. Furthermore, a liquid accumulator 2x is disposed in front of the compressor 2 for performing gas-liquid separation of the refrigerant.

[0034] (Refrigerator piping) like Figure 3 and Figure 4 As shown, 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] After the first piping 9a extends upward from the compressor 2, it 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 the condenser inlet 41. The condenser inlet 41 is formed in the condensation side inner shell 400 at a rear position of the condenser 4, and opens to the non-overlapping space S and to one side D3a in the width direction D3.

[0036] The second pipe 9b extends upward from the condenser outlet 42, then extends forward via the curved portion 9x and is connected to the decompression device 7. The condenser outlet 42 is located forward of the condenser inlet 41 and is formed in the condensation-side inner casing 400. The second pipe 9b opens upward into the non-overlapping space S. In other words, the second pipe 9b is adjacent to the decompression device 7 and is located behind the decompression device 7.

[0037] The third pipe 9c extends upward from the pressure reducing device 7 and is connected to the evaporator 3 at the evaporator inlet 31. The evaporator inlet 31 is formed on the upper surface of the evaporation-side inner shell 300 at a front position 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 ​​along the upper surface 3a of the evaporator 3 (see Figure 6 ) extends toward one side D3a in the width direction D3, and then extends along the side surfaces 3b and 4b of the evaporator 3 and the condenser 4 toward the one side D3a in the width direction D3 (see Figure 6 ) extends downward and is connected to the compressor 2 after passing through the liquid storage tank 2x. The evaporator outlet 32 ​​is located behind the evaporator inlet 31 and is formed on the upper surface of the evaporation side inner shell 300, opening to one side D3a in the width direction D3.

[0038] With the refrigerant piping 9 thus configured, the refrigerant is compressed by the compressor 2 to a high-temperature, high-pressure state. It then flows through the first piping 9a into the condenser 4, where it becomes a low-temperature, high-pressure state. The refrigerant then flows through the second piping 9b into the decompression device 7, where it is decompressed to a low-temperature, low-pressure state. It then flows through the third piping 9c into the evaporator 3, where it evaporates to a high-temperature, low-pressure state. Furthermore, it flows through the fourth piping 9d into the compressor 2, where it is compressed again to a high-temperature, high-pressure state. By repeating this refrigeration cycle, the air conditioning apparatus 100 performs cooling operation.

[0039] (Drainage receiving part) Then refer to Figures 7 to 11 The drainage receiving portion 20 will be described in detail. like Figure 7 As shown, the drain receiver 20 guides the drain W condensed from the air and attached to the evaporator 3 in the front-rear direction D1 toward the front surface 4c of the condenser 4. In this embodiment, the drain receiver 20 constitutes the bottom of the evaporation-side inner case 300.

[0040] Moreover, if Figure 8 As shown, the drainage receiving portion 20 specifically includes: a receiving portion body 200 including a portion of a receiving surface 21 disposed below the evaporator 3; a guide portion 210 including a portion of the receiving surface 21; and a plurality of guide protrusions 22 protruding upward from the receiving surface 21.

[0041] like Figure 9 As shown, the receiving surface 21 has: a front receiving surface 21x, which is larger than the front surface 3c of the evaporator 3 (refer to Figure 7 ) extends to the approximately central position of the evaporator 3, which is the midway position in the front-to-back direction D1; the rear receiving surface 21y is arranged at the rear with a gap SS from the front receiving surface 21x, and extends to a position farther forward than the back surface 3d of the evaporator 3 (refer to Figure 7 ) further rearward; and a guide side receiving surface 21z, connected to the front side receiving surface 21x and extending rearward from the gap SS. The front receiving surface 21x is an inclined surface that is inclined downward from the front to the rear. On the other hand, the rear receiving surface 21y is an inclined surface that is along the bottom surface 3e of the evaporator 3 (see Figure 7 ) A non-inclined surface extending in the front-rear direction D1 (a horizontal surface when the air conditioning apparatus 100 is installed on a horizontal surface). The guide-side receiving surface 21z is an inclined surface that is inclined downward from the front side toward the rear side.

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

[0043] (Guidance Department) The guide portion 210 includes a guide side receiving surface 21z as a part of the receiving surface 21. Figure 10 As shown, the front edge 210a of the guide portion 210 is connected to the receiving portion body 200 at the gap SS, and the rear edge 210b of the other end is connected to the front surface 4c of the condenser 4 (see FIG. Figure 7 ) is close to or in contact with the guide side receiving surface 21z. The guide side receiving surface 21z is located below the front side receiving surface 21x and the rear side receiving surface 21y. Figure 11 As shown, the guide portion 210 is connected to the front receiving surface 21x by a step surface 21a, which forms the inner surface facing the rear side in the gap SS. In addition, the guide portion 210 is formed of a soft material such as resin so as to be able to elastically contact the condenser 4.

[0044] Furthermore, the guide portion 210 has a larger dimension in the width direction D3 than the receiving portion body 200 and is arranged to protrude from the receiving portion body 200 only toward the other side D3b in the width direction D3. Furthermore, the end portion of the guide portion 210 on one side D3a in the width direction D3 and the end portion of the receiving portion body 200 on one side D3a in the width direction D3 are positioned approximately at the same position in the width direction D3. Thus, the receiving portion body 200 is positioned over the entire width direction D3 of the evaporator 3, and the guide portion 210 is positioned over the entire width direction D3 of the condenser 4. Hereinafter, a portion of the guide portion 210 in the width direction D3 that aligns with the receiving portion body 200 is referred to as a width-aligned portion 210x, and a portion (remaining portion) of the guide portion 210 in the width direction D3 that differs from the receiving portion body 200 is referred to as a width-nonaligned portion 210y.

[0045] (Guide protrusion) The plurality of guide protrusions 22 have: a plurality of main body-side protrusions 22 x provided on the front receiving surface 21 x and the rear receiving surface 21 y of the receiving portion main body 200 ; and a plurality of guide-side protrusions 22 z provided on the guide-side receiving surface 21 z of the guide portion 210 .

[0046] The plurality of main body-side protrusions 22x extend in the front-to-back direction D1 across the front receiving surface 21x and the rear receiving surface 21y, and protrude upward from these receiving surfaces 21x and 21y. The main body-side protrusions 22x are spaced apart from each other in the width direction D3, and the main body-side flow channel FC1, which serves as a flow channel for the wastewater W, is formed by the main body-side protrusions 22x and the receiving surfaces 21x and 21y adjacent to each other in the width direction D3.

[0047] (Width direction protrusion) Furthermore, a widthwise protrusion 23 is provided in a portion of each main body-side flow channel FC1 in the width direction D3, protruding upward from the receiving surfaces 21x and 21y. In each main body-side flow channel FC1, multiple widthwise protrusions 23 are spaced apart in the front-to-back direction D1. Multiple widthwise protrusions 23 provided in a single main body-side flow channel FC1 and adjacent in the front-to-back direction D1 are arranged at offset positions in the width direction D3 (except for flow channels FC1 at both ends of the width direction D3). More specifically, in this embodiment, when one of the multiple widthwise protrusions 23 adjacent in the front-to-back direction D1 is defined as the first protrusion 23a and the other as the second protrusion 23b, the first protrusion 23a is connected only to one of the main body-side protrusions 22x adjacent in the width direction D3 (the protrusion 22x on one side D3a of the width direction D3). The second protrusion 23b is connected to only the other of the adjacent main body-side protrusions 22x 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 in the front-rear direction D1.

[0048] Furthermore, each widthwise protrusion 23 is in contact with the bottom surface 3e of the evaporator 3 (see Figure 7 ) contact, supporting the evaporator 3 from below.

[0049] (Guide side protrusion) The plurality of guide-side protrusions 22z extend in the front-to-rear direction D1 on the guide-side receiving surface 21z and protrude upward from the guide-side receiving surface 21z. The guide-side protrusions 22z are spaced apart from each other in the width direction D3. The guide-side protrusions 22z and the guide-side receiving surface 21z adjacent in the width direction D3 form a guide-side flow channel FC2, which serves as a flow channel for the wastewater W. The plurality of guide-side protrusions 22z also function as ribs that increase the strength of the guide portion 210.

[0050] Furthermore, in the present embodiment, the guide-side protrusions 22 z are provided only in the widthwise uniform portion 210 x of the guide portion 210 .

[0051] Furthermore, in each of the plurality of guide-side protrusions 22z, when the front end edge 210a ( Figure 1 When the end on the side is defined as the guide base end 221, and the end on the side of the rear end edge 210b is defined as the guide top end 222, the guide top end 222 is located further forward than the rear end edge 210b, and the guide base end 221 and the front end edge in the guide side receiving surface 21z are arranged in the same position in the front-to-back direction D1 and are connected to the step surface 21a.

[0052] (Effect) According to the air conditioning apparatus 100 of the present embodiment described above, the plurality of guide protrusions 22 are provided in the drain receiving portion 20 for guiding the drain water W generated by the evaporator 3 toward the surface of the condenser 4. This allows the drain water W dripping from the evaporator 3 to be guided in the front-to-back direction D1 toward the condenser 4. Therefore, even if the air conditioning apparatus 100 is installed in a non-horizontal location or tilted during driving due to being mounted on a vehicle, the drain water W can be reliably guided toward the condenser 4, and the drain water W can be used to cool the condenser 4, thereby improving the operating efficiency of the air conditioning apparatus 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 further reliably guided toward the condenser 4 by the guide portion 210. In addition, since the plurality of guide protrusions 22 include the main body-side protrusions 22x provided on the receiving surfaces 21x and 21y of the receiving portion main body 200 and the guide side protrusions 22z provided on the guide side receiving surface 21z of the guide portion 210, the collected drain water W can be consistently guided in the front-to-back direction D1 across the space between the receiving portion main body 200 and the guide portion 210.

[0054] Furthermore, the guide-side protrusions 22z are provided only in the widthwise uniform portion 210x of the guide portion 210. Specifically, the guide-side protrusions 22z are arranged within the region of the guide portion 210 where the receiving portion body 200 is provided in the width direction D3. Thus, by providing the guide-side protrusions 22z only at locations necessary and sufficient to guide the drain water W flowing from the receiving portion body 200 into the guide portion 210, the drain water W can be guided toward the condenser 4 while minimizing the number of guide-side protrusions 22z provided.

[0055] Furthermore, the flow passage FC1 for the drain water W in the receiving portion main body 200 is provided with a widthwise protrusion 23. Thus, it is possible to prevent a portion of the air flowing through the evaporator 3 and condenser 4 in the front-to-back direction D1 from circulating through the flow passage FC1 in the front-to-back direction D1, thereby cutting off the flow of air that does not participate in heat exchange in the evaporator 3 and condenser 4. Therefore, it is possible to improve the heat exchange efficiency, thereby improving the operating efficiency of the air conditioning device 100. In particular, the widthwise protrusion 23 of this embodiment is in contact with the bottom surface 3e of the evaporator 3 (see FIG. 2 ). Figure 7 ) contact and supports the evaporator 3 from below, so the effect of cutting off the air flow passing through the flow channel FC1 is very high.

[0056] In addition, since the width-directional protrusions 23 adjacent to each other in the front-to-back direction D1 in a flow channel FC1 are arranged at staggered positions in the width direction D3, the air attempting to flow through the flow channel FC1 reliably contacts the width-directional protrusions 23 and is cut off, which can further improve the effect of cutting off the air flow passing through the flow channel FC1.

[0057] Here, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention. For example Figure 12 As shown, each of the plurality of guide protrusions 22z may be inclined from the front edge 210a of the guide portion 210 toward the rear edge 210b toward the other side D3b in the width direction D3. In this case, the drainage W from the receiving portion body 200 can be guided in the guide portion 210 toward the width-inconsistent portion 210y protruding from the receiving portion body 200, so that the drainage W can contact the condenser 4, which is larger in the width direction D3 than the evaporator 3, over a wide range, thereby improving the cooling effect of the condenser 4. In addition, although it is also possible to Figure 12 As shown, the inclination angle of the guide side protrusion 22z is increased from one side D3a of the width direction D3 toward the other side D3b, so that the guide side protrusion 22z located on the other side D3b is directed toward the side of the rear end edge 210b and more largely toward the side of the width direction inconsistent portion 210y, that is, a plurality of guide side protrusions 22z are arranged in such a manner that the interval between the guide tips 222 of adjacent guide side protrusions 22z is greater than the interval 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 also be arranged to be inclined at the same angle.

[0058] In addition, in the guide portion 210, even if it is assumed that there is no width-direction inconsistent portion 210y protruding from the receiving portion main body 200, and the guide portion 210 has the same size as the receiving portion main body 200 in the width direction D3, the drainage W can be expanded to the two sides D3a and D3b in the width direction D3 in the guide portion 210 by making the intervals between the guide top ends 222 larger than the intervals between the guide base ends 221, so as to contact the condenser 4 over a wide range.

[0059] Furthermore, the guide portion 210 is not limited to providing the guide side protrusions 22z only in the width direction consistent portion 210x that is consistent with the receiving portion main body 200 at the position in the width direction D3. For example, the number of guide side protrusions 22z provided in the width direction consistent portion 210x may be greater than the number of guide side protrusions 22z provided in the width direction inconsistent portion 210y. Specifically, Figure 12 As shown, although a portion of the guide side protrusion 22z is arranged in the width direction inconsistent portion 210y by tilting the guide side protrusion 22z located at the other side D3b closest to the width direction D3 toward the width direction D3, in this case, only one guide side protrusion 22z is provided in the width direction inconsistent portion 210y, and on the other hand, a plurality of guide side protrusions 22z are provided in the width direction consistent portion 210x.

[0060] In addition, both the main body-side protrusion 22x and the guide-side protrusion 22z are not necessarily provided. Industrial Applicability

[0061] According to the air conditioning apparatus of the present invention, the drain water can be guided from the evaporator to the condenser regardless of the installation posture, thereby improving the operation efficiency. Description of Reference Numerals

[0062] 1 Cabinet 2 compressors 3 Evaporator 4 Condenser 7 Pressure Relief Device 8 Control device 9 Refrigerant piping 9a First piping 9b Second piping 9b Second piping 9c Third pipe 9d Fourth pipe 20 Drainage receiving part 21 Receiving surface 21x front receiving surfaces 21y Rear receiving surface 21z Guide side receiving surface 22 guide protrusion 22x main body side protrusions 22z guide side protrusion 23 Width-direction protrusion 23a First protrusion 23b Second protrusion 100 air conditioning units 200 Receiving unit main body 210 Guidance Department 210a Front edge 210b rear edge 210x Width-wise uniform portion 210y Inconsistent part in width direction 221 guide base 222 Guide Top D1 front-to-back direction D2 Up and down direction D3 width direction FC1 main body side flow channel FC2 guide side channel S non-overlapping space SS Gap W Drainage.

Claims

1. An air conditioning device, comprising: A refrigerant circuit, consisting of a compressor, a condenser, a pressure reducing device, an evaporator and a refrigerant flow channel, for circulating the refrigerant, wherein the refrigerant flow channel connects the compressor, the condenser, the pressure reducing device and the evaporator; as well as The drainage receiving portion is arranged between the evaporator and the condenser below the evaporator, and guides the drainage generated by the evaporator toward the surface of the condenser in a front-rear direction intersecting the width direction of the evaporator. The drainage receiving portion has: a receiving surface for receiving the drainage; as well as A plurality of guide protrusions are arranged spaced apart from each other in the width direction, respectively protrude upward from the receiving surface and extend in the front-rear direction.

2. The air conditioning device according to claim 1, wherein The drainage receiving portion has: a receiving portion body, comprising a portion of the receiving surface as a main body side receiving surface and collecting the drainage; as well as The guide portion includes a portion of the receiving surface as a guide side receiving surface, one end edge of which is connected to the receiving portion 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. 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 air conditioning device according to claim 2, wherein: The guide portion is larger in the width direction than the receiving portion main body. The plurality of guide protrusions have a plurality of guide side protrusions, The number of the guide side protrusions provided in a portion of the guide portion in the width direction and a portion whose position in the width direction is consistent with that of the receiving portion main body (hereinafter referred to as the width direction consistent portion) is greater than the number of the guide side protrusions provided in a portion of the guide portion in the width direction and a portion whose position in the width direction is different from that of the receiving portion main body (hereinafter referred to as the width direction inconsistent portion).

4. The air conditioning device according to claim 3, wherein The plurality of guide-side protrusions are provided only in the widthwise uniform portion of the guide portion.

5. The air conditioning device according to claim 3, wherein The guide portion is provided to protrude from the receiving portion body toward one side in the width direction. The plurality of guide-side protrusions are each inclined toward the one side in the width direction from the one end edge side toward the other end edge side of the guide portion.

6. The air conditioning device according to claim 2, wherein: The plurality of guide protrusions have a plurality of guide side protrusions, In each of the plurality of guide side protrusions, when the end portion on the one end edge side of the guide portion is defined as a guide base end and the end portion on the other end edge side is defined as a guide tip end, the interval between the guide tips in each of the plurality of guide side protrusions is greater than the interval between the guide base ends.

7. The air conditioning device according to claim 2, wherein: The evaporator and the condenser are configured to perform heat exchange with the air flowing in the front-rear direction. The plurality of guide protrusions have a plurality of main body side protrusions, The drainage flow path formed by the body-side protrusions and the receiving surface adjacent to each other in the width direction is provided with a widthwise protrusion that protrudes upward from the receiving surface in a portion of the flow path in the width direction.

8. The air conditioning device according to claim 7, wherein: In one of the flow channels, a plurality of widthwise protrusions are provided spaced apart in the front-rear direction. The plurality of width-direction protrusions provided in one flow channel and adjacent to each other in the front-rear direction are arranged at positions offset from each other in the width direction.

9. The air conditioning device according to claim 8, wherein When a plurality of width-direction protrusions arranged in one of the flow channels and adjacent to each other in the front-to-back direction are set as first protrusions and second protrusions, the first protrusion is connected to one of the main body side protrusions adjacent to each other in the width direction, and the second protrusion is connected to the other of the main body side protrusions adjacent to each other in the width direction, and overlaps with the first protrusion when viewed from the front-to-back direction.

10. The air conditioning device according to any one of claims 1 to 9, wherein: The air conditioning device is mounted on a vehicle.

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