Air conditioning equipment for railway vehicles

Abstract

To provide a railway vehicle air conditioning device that facilitates maintenance despite the fact that an amount of air passing through an indoor heat exchanger is unlikely to reduce and scattering of condensation water toward an air outlet is suppressed.SOLUTION: In a railway vehicle air conditioning device 600, an indoor heat exchanger 124 is disposed at a position inside a housing where an air flow AF passes. A drain pan 152 is disposed below the indoor heat exchanger 124 inside the housing. A first gap GP1 is secured between a lower end part 124e of the indoor heat exchanger 124 and a bottom surface 152a of the drain pain 152. A closing member 300 has: an elastic close contact part 390 that elastically comes into close contact with the bottom surface 152a of the drain pan 152; and a closing part 310 that closes a space between the elastic close contact part 390 and the indoor heat exchanger 124 in such a manner that at least a part of a load of the indoor heat exchanger 124 is transmitted to the elastic close contact part 390, wherein the closing member is attachable and detachable with respect to the indoor heat exchanger 124.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to an air conditioning system for a railway vehicle. [Background technology]

[0002] A railway vehicle air conditioning system for conditioning the passenger compartment of a railway vehicle includes a housing installed on the railway vehicle and an air conditioning device housed in the housing. The air conditioning device includes an indoor heat exchanger that exchanges heat with the air in the passenger compartment and an indoor fan that promotes this heat exchange.

[0003] The housing has a return port and an outlet port, each of which leads to the passenger compartment of the railway vehicle. The indoor fan creates an air flow inside the housing from the return port toward the outlet port. The indoor heat exchanger is located at a position where the air flow passes. In addition, a drain pan is located below the indoor heat exchanger to collect condensation water that forms on the indoor heat exchanger.

[0004] As disclosed in Patent Document 1, a known air conditioning system for a railway vehicle has a configuration in which a gap is secured between the lower end of the indoor heat exchanger and the bottom surface of the drain pan. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-67258 Summary of the Invention [Problem to be solved by the invention]

[0006] If the airflow generated by the indoor fan were to pass through the gap, the amount of air passing through the indoor heat exchanger would be reduced accordingly. This would reduce the heat exchange efficiency of the indoor heat exchanger. Furthermore, condensation water collected at the bottom of the indoor heat exchanger could splash toward the air outlet along with the airflow. The condensation water splashing toward the air outlet could enter the duct and cause an unpleasant odor.

[0007] One possible solution is to seal the gap between the lower end of the indoor heat exchanger and the bottom surface of the drain pan with a packing, but this would impair the ease of maintenance of the railcar air conditioner.

[0008] The object of the present disclosure is to provide an air conditioning system for railway vehicles that is easy to maintain, while preventing a decrease in the amount of air passing through the indoor heat exchanger and suppressing the scattering of condensation water toward the outlet. [Means for solving the problem]

[0009] In order to achieve the above object, the air conditioning device for a railway vehicle according to the present disclosure comprises: a housing installed in a railway vehicle, the housing having a return port and an outlet port each leading to a passenger compartment of the railway vehicle; an indoor fan housed in the housing and forming an air flow from the return port toward the outlet port inside the housing; an indoor heat exchanger that is disposed inside the housing at a position through which the air flows and that exchanges heat between the air and a refrigerant; a drain pan disposed below the indoor heat exchanger inside the housing and configured to receive condensation water formed on the indoor heat exchanger; Equipped with A railway vehicle air conditioning apparatus in which a lower end of the indoor heat exchanger is spaced apart from and disposed above a bottom surface of the drain pan, a closing member that is detachable from the indoor heat exchanger and that has an elastic contact part that elastically contacts the bottom surface of the drain pan and a closing part that closes the gap between the elastic contact part and the indoor heat exchanger in a manner that transmits at least a part of the load of the indoor heat exchanger to the elastic contact part; Equipped with. [Effects of the Invention]

[0010] In the railcar air conditioning system according to the present disclosure, the closing portion closes the gap between the elastic seal-fitting portion and the indoor heat exchanger, so the amount of air passing through the indoor heat exchanger is less likely to decrease and the scattering of condensation water toward the air outlet is suppressed. In addition, because the closing member is detachable from the indoor heat exchanger, maintenance of the railcar air conditioning system according to the present disclosure is easy. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a plan view of an air conditioning device for a railway vehicle according to a first embodiment; [Figure 2] 1 is a conceptual diagram showing the configuration of a main part of an air conditioning device for a railway vehicle according to a first embodiment; [Figure 3] 1 is a conceptual diagram showing the configuration of a main part of an air conditioning device for a railway vehicle according to a second embodiment. [Figure 4] 10 is a conceptual diagram showing the configuration of a main part of an air conditioning device for a railway vehicle according to a third embodiment. [Figure 5] 10 is a conceptual diagram showing the configuration of a main part of an air conditioning device for a railway vehicle according to a fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, a railway vehicle air conditioning system according to an embodiment will be described with reference to the drawings, in which the same or corresponding parts are designated by the same reference numerals.

[0013] [Embodiment 1] 1, a railway vehicle air conditioning system 600 according to this embodiment includes a housing 200 that is installed in a railway vehicle, and air conditioning equipment 100 that is housed in the housing 200 and that air-conditions a passenger compartment serving as a passenger compartment of the railway vehicle. The housing 200 and the air conditioning equipment 100 are disposed on the roof of the railway vehicle.

[0014] The air conditioner 100 has two refrigeration cycle devices 110 and 120, each of which uses a refrigerant to form a refrigeration cycle.

[0015] One refrigeration cycle device 110 has a compressor 111 that compresses a refrigerant, an outdoor heat exchanger 112 that functions as a condenser that condenses the compressed refrigerant, an expander 113 that expands the condensed refrigerant, and an indoor heat exchanger 114 that functions as an evaporator that evaporates the expanded refrigerant. The indoor heat exchanger 114 exchanges heat between the refrigerant and air drawn in from the passenger compartment. The compressor 111, the outdoor heat exchanger 112, and the expander 113 are a group of common devices that, together with the indoor heat exchanger 114, constitute a refrigeration cycle.

[0016] Similarly, the other refrigeration cycle device 120 has a compressor 121, an outdoor heat exchanger 122 that functions as a condenser, an expander 123, and an indoor heat exchanger 124 that functions as an evaporator. The indoor heat exchanger 124 exchanges heat between the air drawn in from the passenger compartment and the refrigerant. The compressor 121, the outdoor heat exchanger 122, and the expander 123 are a group of common devices that, together with the indoor heat exchanger 124, constitute a refrigeration cycle.

[0017] The air conditioning equipment 100 also includes an indoor fan 130 that promotes heat exchange between the indoor heat exchangers 114 and 124 and the air in the passenger compartment, and an outdoor fan 140 that promotes heat exchange between the outdoor heat exchangers 112 and 122 and the air outside the railway vehicle.

[0018] To facilitate the following explanation, we define a right-handed XYZ Cartesian coordinate system with the X axis parallel to the length of the railway vehicle, the Y axis parallel to the width of the railway vehicle, and the Z axis parallel to the vertical direction. The positive Z axis is directed upward.

[0019] The housing 200 is formed in a rectangular shape with its long sides parallel to the X axis and its short sides parallel to the Y axis when viewed in a plane parallel to the Z axis. The housing 200 has a box-shaped base frame 210 with a bottom plate, and a top plate 220 that, together with the base frame 210, defines an accommodation space for accommodating the air conditioning equipment 100 by closing an upper opening of the base frame 210. In Fig. 1, only a portion of the top plate 220 is shown in order to show the interior of the housing 200.

[0020] The housing 200 also has partition plates 231 and 232 that divide the storage space defined by the base frame 210 and the top plate 220 into an indoor unit chamber S1, an outdoor unit chamber S2, and a compressor chamber S3 aligned in the X-axis direction.

[0021] The indoor unit room S1 houses indoor heat exchangers 114 and 124 and an indoor fan 130. The outdoor unit room S2 houses outdoor heat exchangers 112 and 122, expanders 113 and 123, and an outdoor fan 140. The compressor room S3 houses compressors 111 and 121.

[0022] Return ports 241, 242 and an air outlet 250, each of which leads to a passenger compartment of the railway vehicle, are opened on the bottom surface of the housing 200 in the indoor unit room S1.

[0023] The air outlet 250 is located in the center of the indoor unit room S1 in the Y-axis direction. One return port 241 is located at one end of the indoor unit room S1 in the Y-axis direction. The other return port 242 is located at the other end of the indoor unit room S1 in the Y-axis direction.

[0024] The above-mentioned indoor fan 130 is disposed at the position of the air outlet 250. Specifically, the indoor fan 130 is placed against the air outlet 250. One indoor heat exchanger 114 is disposed between one return port 241 and the air outlet 250. The other indoor heat exchanger 124 is disposed between the other return port 242 and the air outlet 250.

[0025] The indoor fan 130 forms an air flow AF from the return ports 241 and 242 toward the air outlet 250 in the indoor unit room S1.

[0026] Specifically, the indoor fan 130 draws air from the passenger compartment into the indoor unit room S1 through the return ports 241 and 242. The air drawn in through the return port 241 passes through one indoor heat exchanger 114, and the air drawn in through the return port 242 passes through the other indoor heat exchanger 124. The indoor fan 130 also returns the air that has passed through the indoor heat exchangers 114 and 124 back into the passenger compartment through the outlet 250.

[0027] When the indoor heat exchangers 114 and 124 functioning as evaporators exchange heat with the air in the passenger compartment, moisture in the air condenses on the surfaces of the indoor heat exchangers 114 and 124. The moisture condensed on the surfaces of the indoor heat exchangers 114 and 124 drips from the indoor heat exchangers 114 and 124.

[0028] Therefore, the air conditioning equipment 100 is provided with a drain pan 151 arranged below one indoor heat exchanger 114 in the indoor unit room S1, and a drain pan 152 arranged below the other indoor heat exchanger 124 in the indoor unit room S1. The drain pan 151 receives condensation water dripping from the indoor heat exchanger 114. The drain pan 152 receives condensation water dripping from the indoor heat exchanger 124.

[0029] The structure around the indoor heat exchanger 114 and the drain pan 151 is the same as the structure around the indoor heat exchanger 124 and the drain pan 152. Therefore, the structure around the indoor heat exchanger 124 and the drain pan 152 will be described in detail below as a representative example.

[0030] As shown in Fig. 2, the drain pan 152 is placed on the bottom surface 211 of the housing 200. The drain pan 152 has a bottom surface 152a onto which condensed water formed in the indoor heat exchanger 124 drips, and a water blocking wall 152b that rises in the Z-axis direction from the bottom surface 152a. Fig. 2 shows the water blocking wall 152b that is disposed between the indoor heat exchanger 124 and the indoor fan 130 shown in Fig. 1.

[0031] A water return portion 152c is formed at the upper end of the water blocking wall 152b, and is bent in a direction approaching the indoor heat exchanger 124, specifically in the negative Y-axis direction.

[0032] The indoor heat exchanger 124 has a lower surface 124a that faces the bottom surface 152a of the drain pan 152, and an upper surface 124b that is opposite the lower surface 124a in the thickness direction of the indoor heat exchanger 124. The indoor heat exchanger 124 also has an end surface that connects the upper surface 124b and the lower surface 124a. Of the end surfaces of the indoor heat exchanger 124, a lower end surface 124c and an upper end surface 124d are shown in Figure 2. The upper end surface 124d is located opposite the lower end surface 124c in the length direction of the indoor heat exchanger 124 that is perpendicular to the X-axis direction.

[0033] The indoor heat exchanger 124 is disposed so as to be inclined such that the lower surface 124a approaches the bottom surface 152a of the drain pan as it approaches the outlet 250. The lower end surface 124c is located lower than the upper end surface 124d.

[0034] However, a lower end 124e of the indoor heat exchanger 124 is spaced apart from and disposed above the bottom surface 152a of the drain pan 152. Specifically, a first gap GP1 is secured between the lower end 124e of the indoor heat exchanger 124 and the bottom surface 152a of the drain pan 152.

[0035] One reason for this is to prevent the lower end portion 124e from damaging the bottom surface 152a of the drain pan 152 due to shaking in the Z-axis direction caused by the movement of the railroad vehicle. Note that in this embodiment, the lower end portion 124e of the indoor heat exchanger 124 specifically refers to the corner located at the boundary between the lower surface 124a and the lower end surface 124c of the indoor heat exchanger 124.

[0036] On the other hand, if the airflow AF passes through the first gap GP1, the amount of air passing through the indoor heat exchanger 124 will decrease accordingly, and the efficiency of heat exchange in the indoor heat exchanger 124 will therefore deteriorate.

[0037] In addition, condensation water collected at the lower end 124e of the indoor heat exchanger 124 may splash toward the air outlet 250 along with the air flow AF. The condensation water splashed toward the air outlet 250 may enter the duct and cause an unpleasant odor. In FIG. 2, the air outlet 250 is indicated by a dashed line. In addition, the indoor fan 130 is not shown in FIG. 2.

[0038] 2, in housing 200 according to this embodiment, outlet 250 is formed at a position equal to the height of bottom surface 152a of drain pan 152 or at a position lower than bottom surface 152a of drain pan 152. Therefore, if condensed water is scattered, the scattered condensed water is likely to enter outlet 250.

[0039] Therefore, it is conceivable to block the first gap GP1 with packing. However, in that case, ease of maintenance of the indoor heat exchanger 124, the drain pan 152, etc. is impaired. In consideration of this situation, the railway vehicle air conditioning device 600 according to this embodiment is provided with the blocking member 300 to facilitate maintenance, while preventing a decrease in the amount of air passing through the indoor heat exchanger 124 and suppressing the scattering of condensation water toward the air outlet 250.

[0040] The closing member 300 has an elastic tight contact portion 390 that elastically contacts the bottom surface 152a of the drain pan 152, and a closing portion 310 that closes the gap between the elastic tight contact portion 390 and the indoor heat exchanger 124 in a manner that transmits part of the load of the indoor heat exchanger 124 to the elastic tight contact portion 390. Passage of the air flow AF through the first gap GP1 is suppressed by the closing portion 310.

[0041] The elastic sealing portion 390 is made of synthetic resin, specifically, elastomer. A thermoplastic elastomer is preferable as the elastomer. The elastic sealing portion 390 is less likely to absorb water than sponge, heat insulating material, etc., and is therefore less likely to produce unpleasant odors caused by absorbing condensation water than when sponge, heat insulating material, etc. are used. The closing portion 310 is made of metal, specifically, stainless steel.

[0042] The closing portion 310 has a pressing portion 320 that presses against the elastic sealing portion 390, a fixing portion 330 that is detachably fixed to the indoor heat exchanger 124, and a main body portion 340 that connects the pressing portion 320 and the fixing portion 330. The fixing portion 330 is detachably fixed to the upper surface 124b of the indoor heat exchanger 124 with screws CL.

[0043] The main body 340 has a first plate-shaped portion 350 extending from the pressing portion 320 in a direction approaching the upper surface 124b, and a second plate-shaped portion 360 bent from an end of the first plate-shaped portion 350 toward the fixing portion 330.

[0044] The pressing portion 320, the fixing portion 330, and the main body portion 340 all extend in the X-axis direction along the indoor heat exchanger 124. The pressing portion 320, the fixing portion 330, and the main body portion 340 are made of a single angle bar formed by bending a stainless steel sheet metal into an L-shape.

[0045] The elastic contact portion 390 has a contact portion 391 that comes into close contact with the bottom surface 152a of the drain pan 152, and a fitting portion 392 that is formed integrally with the contact portion 391. The contact portion 391 has a hollow tubular shape that extends in the X-axis direction. The fitting portion 392 fits with the pressing portion 320 and a portion of the first plate-shaped portion 350 while being in close contact with these pressing portion 320 and a portion of the first plate-shaped portion 350.

[0046] The railway vehicle air conditioning device 600 according to this embodiment also includes an upper blocking member 400 to prevent the air flow AF from passing between the indoor heat exchanger 124 and the top plate 220. The upper blocking member 400 has the same configuration as the blocking member 300.

[0047] Specifically, the upper closing member 400 has an upper elastic seal part 490 that elastically contacts the top plate 220, and an upper closing part 410 that closes the third gap GP3 between the upper elastic seal part 490 and the indoor heat exchanger 124. The upper closing part 410 blocks the passage of the air flow AF through the third gap GP3.

[0048] The upper closing portion 410 has an upper pressing portion 420 that presses against the upper elastic sealing portion 490, an upper fixing portion 430 that is detachably fixed to the indoor heat exchanger 124, and an upper main body portion 440 that connects the upper pressing portion 420 and the upper fixing portion 430. The upper fixing portion 430 is detachably fixed to the underside 124a of the indoor heat exchanger 124 with screws CL.

[0049] The upper main body portion 440 has an upper first plate-shaped portion 450 extending from the upper pressing portion 420 in a direction approaching the lower surface 124a, and an upper second plate-shaped portion 460 bent from the end of the upper first plate-shaped portion 450 toward the upper fixing portion 430.

[0050] The upper elastic seal portion 490 has an upper seal portion 491 that comes into close contact with the top plate 220, and an upper fitting portion 492 that is formed integrally with the upper seal portion 491. The upper seal portion 491 has a hollow tubular shape that extends in the X-axis direction. The upper fitting portion 492 fits with a portion of the upper pressing portion 420 and the upper first plate portion 450 while being in close contact with these portions.

[0051] As described above, according to the present embodiment, the closing portion 310 closes the gap between the elastic tight-contact portion 390 and the indoor heat exchanger 124, and therefore the passage of the air flow AF between the lower end portion 124e of the indoor heat exchanger 124 and the bottom surface 152a of the drain pan 152 is suppressed by the closing portion 310. This prevents a decrease in the efficiency of heat exchange in the indoor heat exchanger 124, and also prevents condensation water that has collected at the lower end portion 124e of the indoor heat exchanger 124 from scattering toward the outlet 250.

[0052] Furthermore, the blocking member 300 is disposed in the negative Y-axis direction relative to the water blocking wall 152b and the water returning portion 152c. In other words, the blocking member 300 is disposed away from the water blocking wall 152b and the water returning portion 152c. This prevents condensed water from flowing from the blocking member 300 to the water blocking wall 152b and the water returning portion 152c. As a result, the possibility of condensed water flowing out to a position closer to the outlet 250 than the water blocking wall 152b is further reduced.

[0053] Furthermore, the closing member 300 is fixed to the indoor heat exchanger 124 with screws CL, and is therefore detachable from the indoor heat exchanger 124. The same is true for the upper closing member 400. Therefore, during maintenance, the closing member 300 and the upper closing member 400 can be removed from the indoor heat exchanger 124. This not only makes it easy to perform maintenance on the closing member 300 and the upper closing member 400, but also makes it easy to perform maintenance on the indoor heat exchanger 124, the drain pan 152, etc.

[0054] Furthermore, the upper blocking member 400 has the same configuration as the blocking member 300. In other words, the upper blocking member 400 and the blocking member 300 can share the same components. Therefore, compared to when the upper blocking member 400 has a different configuration from the blocking member 300, it is possible to reduce the number of components and simplify the management of the components.

[0055] [Embodiment 2] 2, the first plate-shaped portion 350 faces the lower end surface 124c of the indoor heat exchanger 124, with a second gap GP2 maintained between the first plate-shaped portion 350 and the lower end surface 124c of the indoor heat exchanger 124. An intervening portion may be provided in this second gap GP2 to encourage condensed water to flow down to the drain pan 152. Specific examples of this will be described below.

[0056] 3, the blocking member 300 according to this embodiment further includes a hollow portion 370 as an intervening portion disposed in the second gap GP2. The hollow portion 370 has a hollow tubular shape extending in the X-axis direction along the lower end surface 124c.

[0057] The hollow portion 370 protrudes from the fitting portion 392 of the elastic tight-contact portion 390 toward the lower end surface 124c of the indoor heat exchanger 124. Because the hollow portion 370 is in contact with the lower end surface 124c, it plays a role in guiding condensation water on the lower end surface 124c through the elastic tight-contact portion 390 to the bottom surface 152a of the drain pan 152.

[0058] That is, the condensation water on the lower end surface 124c flows down through the hollow portion 370 and the elastic sealing portion 390 to the bottom surface 152a of the drain pan 152. For this reason, according to this embodiment, condensation water is less likely to remain on the indoor heat exchanger 124, particularly on the lower end surface 124c and the lower end portion 124e. Therefore, mold is less likely to grow on the indoor heat exchanger 124, and condensation water is smoothly discharged.

[0059] The hollow portion 370 is formed integrally with the elastic seal-contact portion 390 and has elasticity. The hollow portion 370 is interposed between the lower end surface 124c and the fitting portion 392 in a pressurized and compressed state. Therefore, even if shaking occurs as the railway vehicle travels, the position of the hollow portion 370 is unlikely to shift. Other configurations and effects are the same as those of the first embodiment.

[0060] [Embodiment 3] The intervening portion disposed in the second gap GP2 is not limited to the hollow portion 370. Other specific examples of the intervening portion will be described below.

[0061] 4, the closing member 300 according to this embodiment includes a plurality of return portions 380 as intervening portions disposed in the second gap GP2. The plurality of return portions 380, specifically three return portions 380, each extending in the X-axis direction, are aligned in the thickness direction of the indoor heat exchanger 124.

[0062] Each of the return portions 380 has elasticity and is formed integrally with the elastic sealing portion 390. Each of the return portions 380 extends from the fitting portion 392 of the elastic sealing portion 390 toward the lower end surface 124c of the indoor heat exchanger 124, and is in contact with the lower end surface 124c while elastically pressing against the lower end surface 124c.

[0063] 3, each return portion 380 also serves to guide condensation water on the lower end surface 124c to the bottom surface 152a of the drain pan 152 through the elastic tight-contact portion 390. That is, the condensation water on the lower end surface 124c flows down the return portion 380 and the elastic tight-contact portion 390 to the bottom surface 152a of the drain pan 152. Therefore, the same effect as in the second embodiment can be obtained.

[0064] [Embodiment 4] It is also possible to realize a member having the same function as the closing member 300 according to the above-described embodiments 1 to 3 by using a single molded synthetic resin body. Specific examples thereof will be described below.

[0065] As shown in FIG. 5, the blocking member 500 of this embodiment is similar to the blocking member 300 of the above-described embodiments 1-3 in that it has an elastic tight-contact portion 520 that elastically contacts the bottom surface 152a of the drain pan 152, and a blocking portion 510 that blocks the space between the elastic tight-contact portion 520 and the indoor heat exchanger 124 in a manner that transmits part of the load of the indoor heat exchanger 124 to the elastic tight-contact portion 520.

[0066] However, the closing member 500 according to this embodiment is made of a synthetic resin, specifically a polyurethane member, in which the elastic sealing portion 520 and the closing portion 510 are integrally formed. In other words, the entire closing member 500 is elastic.

[0067] The blocking member 500 has a first side surface that elastically contacts the bottom surface 152a of the drain pan 152, a second side surface that elastically contacts the lower end surface 124c of the indoor heat exchanger 124, and a third side surface that connects the first and second side surfaces, and is formed in the shape of a triangular prism with its height direction in the X-axis direction. The first side surface is formed in the elastic contact portion 520, and the second and third side surfaces are formed in the blocking portion 510.

[0068] In this embodiment, the blocking portion 510 also blocks the space between the elastic sealing portion 520 and the indoor heat exchanger 124, so that the blocking portion 510 prevents the air flow AF from passing between the lower end portion 124e of the indoor heat exchanger 124 and the bottom surface 152a of the drain pan 152.

[0069] The above has described embodiments 1-4. In embodiments 1-4, a configuration has been exemplified in which the closing portions 310, 510 transmit a portion of the load of the indoor heat exchanger 124 to the elastic close-contact portions 390, 520, respectively. A configuration in which the closing portions 310, 510 transmit the entire load of the indoor heat exchanger 124 to the elastic close-contact portions 390, 520, respectively, may also be employed. In addition, various modifications and substitutions can be made to embodiments 1-4 without departing from the scope of the claims.

[0070] Various aspects of the present disclosure are described below.

[0071] (Appendix 1) a housing installed in a railway vehicle, the housing having a return port and an outlet port each leading to a passenger compartment of the railway vehicle; an indoor fan housed in the housing and forming an air flow from the return port toward the outlet port inside the housing; an indoor heat exchanger that is disposed inside the housing at a position through which the air flows and that exchanges heat between the air and a refrigerant; a drain pan disposed below the indoor heat exchanger inside the housing and configured to receive condensation water formed on the indoor heat exchanger; Equipped with A railway vehicle air conditioning apparatus in which a lower end of the indoor heat exchanger is spaced apart from and disposed above a bottom surface of the drain pan, a closing member that is detachable from the indoor heat exchanger and that has an elastic contact part that elastically contacts the bottom surface of the drain pan and a closing part that closes the gap between the elastic contact part and the indoor heat exchanger in a manner that transmits at least a part of the load of the indoor heat exchanger to the elastic contact part; An air conditioning system for railway vehicles.

[0072] (Appendix 2) The outlet is formed at a position equal to or lower than the bottom surface of the drain pan. 10. The air conditioning system for a railway vehicle according to claim 1.

[0073] (Appendix 3) The blocking portion is a pressing portion that presses against the elastic contact portion; a fixing portion that is detachably fixed to the indoor heat exchanger; a main body portion connecting the pressing portion and the fixing portion; 3. The air conditioning device for a railway vehicle according to claim 1 or 2,

[0074] (Appendix 4) the indoor heat exchanger has a lower surface facing the bottom surface of the drain pan and an upper surface opposite to the lower surface in a thickness direction of the indoor heat exchanger, and is disposed so as to be inclined in a direction approaching the bottom surface of the drain pan as it approaches the air outlet, the fixing portion is detachably fixed to the upper surface, The main body portion is a first plate-shaped portion extending from the pressing portion in a direction approaching the upper surface; a second plate-shaped portion bent from an end of the first plate-shaped portion toward the fixing portion; 4. The air conditioning device for a railway vehicle according to claim 3,

[0075] (Appendix 5) the first plate-shaped portion faces a lower end surface of the indoor heat exchanger, the lower end surface connecting the upper surface and the lower surface, with a gap secured between the lower end surface and the first plate-shaped portion; The blocking member is an intervening portion that is disposed in the gap in a state of contact with the lower end surface and that guides the condensation water on the lower end surface to the bottom surface of the drain pan through the elastic sealing portion; 5. The air conditioning system for a railway vehicle according to claim 4, further comprising:

[0076] (Appendix 6) The elastic contact portion is a contact portion that is in close contact with the bottom surface of the drain pan; a fitting portion formed integrally with the close contact portion and fitted with the pressing portion; 6. The air conditioning device for a railway vehicle according to any one of appendices 3 to 5, comprising:

[0077] (Appendix 7) the drain pan has a water blocking wall rising from the bottom surface at a position between the indoor heat exchanger and the indoor fan, The blocking member is disposed at a distance from the water blocking wall. 7. The air conditioning device for a railway vehicle according to any one of appendixes 3 to 6.

[0078] (Appendix 8) The closing member is made of a synthetic resin member in which the elastic seal-contact portion and the closing portion are integrally formed. 3. The air conditioning device for a railway vehicle according to claim 1 or 2.

[0079] (Appendix 9) the drain pan has a water blocking wall rising from the bottom surface at a position between the indoor heat exchanger and the indoor fan, The blocking member is disposed at a distance from the water blocking wall. 9. The air conditioning system for a railway vehicle according to claim 8. [Explanation of symbols]

[0080] 100 air conditioning equipment, 110, 120 refrigeration cycle device, 111, 121 compressor, 112, 122 outdoor heat exchanger, 113, 123 expander, 114, 124 indoor heat exchanger, 124a lower surface, 124b upper surface, 124c lower end surface, 124d upper end surface, 124e lower end portion, 130 indoor fan, 140 outdoor fan, 151, 152 drain pan, 152a bottom surface, 152b water blocking wall, 152c water return portion, 200 housing, 210 base frame, 211 bottom surface, 220 top plate, 231, 232 partition plate, 241, 242 return port, 250 outlet, 300 blocking member, 310 blocking portion, 320 Pressing portion, 330 fixing portion, 340 main body portion, 350 first plate-shaped portion, 360 second plate-shaped portion, 370 hollow portion (intervening portion), 380 return portion (intervening portion), 390, 520 elastic sealing portion, 391 sealing portion, 392 fitting portion, 400 upper closing member, 410 upper closing portion, 420 upper pressing portion, 430 upper fixing portion, 440 upper main body portion, 450 upper first plate-shaped portion, 460 upper second plate-shaped portion, 490 upper elastic sealing portion, 491 upper sealing portion, 492 upper fitting portion, 500 closing member, 510 closing portion, 600 air conditioning unit for railway vehicle, AF air flow, CL screw, GP1 first gap, GP2 Second gap (gap), GP3 third gap, S1 indoor unit room, S2 outdoor unit room, S3 compressor room.

Claims

1. a housing installed in a railway vehicle, the housing having a return port and an outlet port each leading to a passenger compartment of the railway vehicle; an indoor fan housed in the housing and forming an air flow from the return port toward the outlet port inside the housing; an indoor heat exchanger that is disposed inside the housing at a position through which the air flows and that exchanges heat between the air and a refrigerant; a drain pan disposed below the indoor heat exchanger inside the housing and configured to receive condensation water formed on the indoor heat exchanger; Equipped with A railway vehicle air conditioning apparatus in which a lower end of the indoor heat exchanger is spaced apart from and disposed above a bottom surface of the drain pan, a closing member that is detachable from the indoor heat exchanger and that has an elastic contact part that elastically contacts the bottom surface of the drain pan and a closing part that closes the gap between the elastic contact part and the indoor heat exchanger in a manner that transmits at least a part of the load of the indoor heat exchanger to the elastic contact part; An air conditioning system for railway vehicles.

2. The outlet is formed at a position equal to or lower than the bottom surface of the drain pan.

2. The air conditioning system for a railway vehicle according to claim 1.

3. The blocking portion is a pressing portion that presses against the elastic contact portion; a fixing portion that is detachably fixed to the indoor heat exchanger; a main body portion connecting the pressing portion and the fixing portion; 3. The air conditioning system for a railway vehicle according to claim 1 or 2, further comprising:

4. the indoor heat exchanger has a lower surface facing the bottom surface of the drain pan and an upper surface opposite to the lower surface in a thickness direction of the indoor heat exchanger, and is disposed so as to be inclined in a direction approaching the bottom surface of the drain pan as it approaches the air outlet, the fixing portion is detachably fixed to the upper surface, The main body portion is a first plate-shaped portion extending from the pressing portion in a direction approaching the upper surface; a second plate-shaped portion bent from an end of the first plate-shaped portion toward the fixing portion; 4. The air conditioning system for a railway vehicle according to claim 3, further comprising:

5. the first plate-shaped portion faces a lower end surface of the indoor heat exchanger, the lower end surface connecting the upper surface and the lower surface, with a gap secured between the first plate-shaped portion and the lower end surface; The blocking member is an intervening portion that is disposed in the gap in a state of contact with the lower end surface and that guides the condensation water on the lower end surface to the bottom surface of the drain pan through the elastic sealing portion; The air conditioning system for a rail vehicle according to claim 4, further comprising:

6. The elastic contact portion is a contact portion that is in close contact with the bottom surface of the drain pan; a fitting portion formed integrally with the close contact portion and fitted with the pressing portion; 4. The air conditioning system for a railway vehicle according to claim 3, further comprising:

7. the drain pan has a water blocking wall rising from the bottom surface at a position between the indoor heat exchanger and the indoor fan, The blocking member is disposed at a distance from the water blocking wall.

4. The air conditioning system for a railway vehicle according to claim 3.

8. The closing member is made of a synthetic resin member in which the elastic seal-contact portion and the closing portion are integrally formed.

3. The air conditioning system for a railway vehicle according to claim 1 or 2.

9. the drain pan has a water blocking wall rising from the bottom surface at a position between the indoor heat exchanger and the indoor fan, The blocking member is disposed at a distance from the water blocking wall.

9. The air conditioning system for a railway vehicle according to claim 8.

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