JP2019043339A - Indoor unit of vehicle air conditioner, vehicle equipped with the same, ceiling board assembly, indoor unit maintenance method, and ceiling board replacement method - Google Patents

Abstract

To provide an indoor unit of a vehicle air conditioner having high maintenance properties, a vehicle equipped with the same, a ceiling board assembly, an indoor unit maintenance method, and a ceiling board replacement method.SOLUTION: An indoor unit 7 of a vehicle air conditioner is installed in a ceiling part 4Aa of a passage provided at a gable side end of the interior of a vehicle, and has width dimensions smaller than the width dimensions of the passage. The indoor unit 7 includes an indoor fan 14 and an indoor heat exchanger 15 installed above a ceiling plate 8, an indoor unit body 9 for holding the indoor fan 14 and the indoor heat exchanger 15, and a drain pan 10 for receiving drain water generated in the indoor heat exchanger 15, which can be attached to or detached from the indoor unit body 9 from below.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an indoor unit of a vehicle air conditioner, a vehicle including the same, a ceiling plate assembly, a method of maintaining the indoor unit, and a method of replacing the ceiling plate.

As a new means of transportation other than buses and railways, there is known a track transportation system that travels on a track by running wheels made of rubber tires and the like. A track transportation system of this type is generally referred to as a "new transportation system", and guide wheels disposed on both sides of the vehicle are guided by guide rails provided along the track.
Specific examples of the new transportation system include, for example, APM (Automated People Mover) and AGT (Automated Guideway Transit) for urban areas.

  An air conditioner is provided in a vehicle of a track transportation system. An example of an air conditioner (cooling device) for a vehicle is described in Patent Document 1 below. The air conditioner described in Patent Document 1 is attached to the ceiling of a vehicle, and the indoor unit and the outdoor unit are integrated.

  On the other hand, there is known a vehicle in which a so-called separate type air conditioner is adopted, in which the indoor unit and the outdoor unit are separated and installed in different places due to space restrictions and the like. In such an air conditioner, an indoor unit is often installed inside a vehicle and an outdoor unit is often installed under the vehicle floor. In particular, in the case of an AGT that uses a small vehicle, an indoor unit may be attached to the upper part of the penetration passage near the end face of the vehicle.

Japanese Utility Model Publication No. 58-134124

  By the way, in the indoor unit of the conventional separate type air conditioner, only a part of the indoor unit is exposed downward even if the decorative plate of the ceiling in the vicinity of the passage side is removed. When performing maintenance, it is necessary to access the indoor unit after removing components around the indoor unit of the vehicle.

  Accordingly, the present invention provides an indoor unit of a vehicle air conditioner having high maintainability, a vehicle including the same, a ceiling plate assembly, a method of maintaining the indoor unit, and a method of replacing the ceiling plate.

  The indoor unit of the vehicle air conditioner according to the first aspect of the present invention is provided on the ceiling of the end-side passage of the end of the end-side interior of the vehicle so as to be able to supply conditioned air to the room. A dimension smaller than the width dimension in the vehicle width direction of the above is set as the width dimension in the direction along the vehicle width direction.

  In the region in the width direction corresponding to the width of the end passage, there is no structure such as a wall for accommodating at least a seat or piping below the ceiling. Therefore, since the width dimension of the indoor unit is smaller than the width of the end passage, the entire indoor unit can be exposed toward the end passage, that is, downward to facilitate access to the indoor unit. . Therefore, the inside of the indoor unit can be easily checked from the end passage, and the entire indoor unit can be easily removed from the ceiling. That is, as in the case where the width dimension of the indoor unit is larger than the width of the end passage, there is no need to remove the components around the indoor unit in order to access the indoor unit.

  Further, the indoor unit of the above-described vehicle air conditioner includes a heat exchanger disposed above a ceiling plate forming the ceiling portion, a fan, an indoor unit main body housing the heat exchanger, and the fan; While receiving the drain water which arose in the said heat exchanger, You may have the drain pan provided detachably from the downward direction with respect to the said indoor unit main body.

  According to this configuration, since the width dimension of the drain pan is smaller than the width dimension of the wife side passage, the drain pan can be accessed from the wife side passage only by removing the ceiling plate, and the drain pan can be removed to facilitate maintenance of the indoor unit. It can be carried out.

  In the indoor unit of the above-described vehicle air conditioner, the drain pan may not be fixed to the indoor unit main body, and may be integrally provided on the back surface of the ceiling plate.

  According to this configuration, since the drain pan is integrally provided on the back surface (the surface not exposed to the room) of the ceiling plate, the drain pan can be simultaneously removed from the indoor unit by removing the ceiling plate. As a result, the number of parts of the indoor unit can be reduced, and the number of man-hours for maintenance of the indoor unit can also be reduced.

  Further, in the indoor unit of the above-described vehicle air conditioner, the drain pan is provided on at least one side in the vehicle width direction, and in a state where the drain water outlet to which a drain hose is connected is installed in the vehicle An inclined surface may be provided which is a bottom surface inclined downward toward the discharge port on the one side from the other side in the vehicle width direction.

  According to this configuration, the drain pan has an inclined surface that is inclined toward the discharge port as the bottom surface. Therefore, the drain water of the indoor unit that has reached the drain pan flows along the slope toward the outlet. This can prevent drain water from being normally stored in the drain pan. That is, when the drain pan is removed for maintenance, the possibility that the drain water may be scattered to contaminate the room (inside) can be reduced.

  Further, in the indoor unit of the above-described vehicle air conditioner, the width dimension may be 550 mm or more and 1000 mm or less.

  Since the width dimension of the end passage is generally 550 mm or more and 1000 mm or less, the width dimension of the end passage and the width dimension of the indoor unit can be made equal. Therefore, access to the indoor unit becomes easy while maintaining the upper limit of the capacity of the air conditioner, and the indoor unit can be easily checked from the end passage and the entire indoor unit can be easily removed from the ceiling. it can.

  A vehicle according to a second aspect of the present invention is an indoor unit of the above-described vehicle air conditioner, an outdoor unit connected to the indoor unit and disposed outdoors, and a vehicle to which the indoor unit and the outdoor unit are attached. It has a body.

  The provision of the indoor unit of the above-described vehicle air conditioner facilitates access to the indoor unit. Therefore, the indoor unit can be easily inspected from the end passage, and the entire indoor unit can be easily removed from the ceiling.

  The ceiling plate assembly according to the third aspect of the present invention is provided on the ceiling portion of the end-side passage of the end-side end of the vehicle interior of the vehicle so as to supply conditioned air to the room, and the vehicle width of the end-side passage A ceiling plate that covers from below the indoor unit of the vehicle air conditioner having a dimension smaller than the directional width dimension as the width dimension in the vehicle width direction, and a heat exchanger disposed above the ceiling plate, And a drain pan that is not fixed to the indoor unit main body that accommodates the fan, and is integrally provided on the back surface of the ceiling plate.

According to this configuration, since the drain pan is integrally provided on the back surface (the surface not exposed to the room) of the ceiling plate, the drain pan can be simultaneously removed from the indoor unit by removing the ceiling plate. As a result, the number of parts of the indoor unit can be reduced, and the number of man-hours for maintenance of the indoor unit can also be reduced.
Furthermore, in place of the existing ceiling plate that is not integrated with the drain pan, by providing the drain pan and the ceiling plate that are integrated, it is possible to upgrade the existing vehicle air conditioner from the viewpoint of maintainability. .

  The ceiling plate assembly may further include a gap adjusting member disposed below the fan and integrally provided with the ceiling plate.

  By providing such a gap adjusting member, even if there is a space between the fan and the ceiling plate, this space can be filled with the gap adjusting member, and the space under the fan becomes large. You can avoid passing by. That is, a space (flow path) of an appropriate volume can be formed below the fan, and the intake of the air of the indoor unit body by the fan and the supply of air to the room can be made smooth.

  A maintenance method of a vehicle air conditioner according to a fourth aspect of the present invention is the maintenance method of the indoor unit, wherein a ceiling plate forming the ceiling portion is removed from the vehicle and the drain pan of the indoor unit is downward. Including the steps of exposing, removing the drain hose from the drain water outlet provided at least on one side in the width direction of the drain pan, and removing the drain pan to expose the interior of the indoor unit There is.

  By adopting such a maintenance method, it is possible to easily inspect the indoor unit from the passage on the side of the wife and to easily remove the entire indoor unit from the ceiling.

  Further, in the maintenance method described above, in the step of exposing the inside, the drain pan may be removed after tilting the drain pan so that the other side is positioned above the one side.

  In this case, after moving the drain water stored in the drain pan toward the discharge port, the drain pan is removed. Therefore, when the drain pan is removed, the drain water can be led to the discharge port, thereby reducing the possibility that the drain water stored in the drain pan may scatter and contaminate the room, or the drain water may splash on workers. Can.

  A method of replacing a ceiling plate of a vehicle air conditioner according to a fifth aspect of the present invention is provided in a ceiling portion of a wife side passage of a wife side end of a cabin of the vehicle to supply conditioned air to the room A heat exchanger having a dimension smaller than the width dimension in the vehicle width direction of the end passage as the width dimension in the direction along the vehicle width direction, and disposed above the ceiling plate forming the ceiling portion, And a fan, the heat exchanger, and an indoor unit body accommodating the fan, and a drain pan which receives drain water generated in the heat exchanger and is detachably provided to the indoor unit body from below. And removing the ceiling plate from the indoor unit body to remove the ceiling plate from the indoor unit body, and removing the drain pan from the indoor unit body. Process, on The ceiling board assembly includes the steps of assembling the lower part of the indoor unit body.

  By adopting such a replacement method, in place of the existing ceiling plate which is not integral with the drain pan, a drain pan and a ceiling plate which are integrally formed are provided, from the viewpoint of maintenance, the existing vehicle air conditioning. It is possible to upgrade the machine.

  According to the indoor unit, vehicle, ceiling plate assembly, maintenance method, and replacement method of the above-described vehicle air conditioner, high maintenance can be provided by setting the width dimension of the indoor unit as described above. .

FIG. 1 is a cross-sectional view showing an essential part of a vehicle according to a first embodiment of the present invention. It is a longitudinal cross-sectional view of the indoor unit which concerns on 1st embodiment of this invention, Comprising: It is AA sectional drawing of FIG. It is a perspective view showing the state where a part of indoor unit concerning a first embodiment of the present invention was disassembled. It is process drawing which shows the maintenance method which concerns on 1st embodiment of this invention. It is a cross-sectional view which shows the modification of the drain pan of the indoor unit which concerns on 1st embodiment of this invention. It is a longitudinal cross-sectional view of the indoor unit which concerns on 2nd embodiment of this invention, Comprising: It is a figure corresponding to AA sectional drawing of FIG. It is a longitudinal cross-sectional view of the indoor unit concerning 3rd embodiment of this invention, Comprising: It is a figure corresponding to AA sectional drawing of FIG. It is process drawing which shows the replacement | exchange method of the ceiling board which concerns on embodiment of this invention.

First Embodiment
A vehicle 100 according to a first embodiment of the present invention will be described with reference to the drawings.
The vehicle 100 according to the present embodiment is used particularly for a new transportation system called AGT.
As shown in FIG. 1, a vehicle 100 according to the present embodiment includes a vehicle main body 1 on which a passenger or the like is mounted, and a vehicle air conditioner 2 attached to the vehicle main body 1. The vehicle body 1 has a box shape, and a seat 3 is provided on the floor surface thereof. An area at a central portion in the vehicle width direction of the vehicle body 1 is a passage 4. At the end of the passage 4 is provided a end passage 4A which is connected to the through hole 5a which penetrates the wall surface (the end surface 5) on both sides of the vehicle 100 in the longitudinal direction (traveling direction). That is, the end passage 4A is provided at the end of the vehicle 100, which is the end of the vehicle 100 in the longitudinal direction. In the present embodiment, the end passage 4A has a certain dimension (width dimension) in the vehicle width direction toward the through hole 5a, and the width dimension is, for example, 550 mm or more and 1000 mm or less. Is adopted.
Here, the vehicle width direction indicates a direction orthogonal to the longitudinal direction and the vertical direction of the vehicle 100.

  Although not shown, a traveling carriage is provided at the lower part of the vehicle body 1. The vehicle 100 travels on the track by rotation of the drive wheels provided on the traveling carriage.

Next, the vehicle air conditioner 2 will be described.
The vehicle air conditioner 2 is provided to keep the room inside the vehicle body 1 at an appropriate temperature. The vehicle air conditioner 2 has an outdoor unit 6 that exchanges heat between the air outside the vehicle body 1 (outdoor) and the refrigerant, and an indoor unit 7 that supplies conditioned air inside the vehicle body 1. doing.

  The vehicle air conditioner 2 is a separate air conditioner in which the outdoor unit 6 and the indoor unit 7 are disposed apart from each other. The outdoor unit 6 is attached, for example, under the floor of the vehicle body 1 in the present embodiment. Here, the installation location of the outdoor unit 6 is not limited, and it may be installed on the ceiling of the vehicle main body 1 as long as heat can be exchanged with the air outside the room. Although illustration is omitted, the outdoor unit 6 includes an outdoor fan, an outdoor heat exchanger, a compressor for compressing a refrigerant, refrigerant pipes through which the refrigerant flows, various valve devices provided in the refrigerant pipes, a compressor, etc. It mainly has a control box that performs operation control.

  The indoor unit 7 is attached to the upper side (ceiling) of the end passage 4A inside the vehicle body 1. The indoor unit 7 has a generally box-like shape, and is housed in the space of the ceiling of the end passage 4A. That is, a ceiling plate 8 formed of a decorative plate or the like is attached above the wife side passage 4A, and the indoor unit 7 is accommodated in a ceiling portion 4Aa formed above the wife side passage 4A by the ceiling plate 8 There is.

  As shown in FIG. 2 or FIG. 3, the indoor unit 7 is housed in the indoor unit main body 9 as a housing, the indoor fan 14 and the refrigerant pipe P housed in the indoor unit main body 9, and the indoor unit main body 9 The indoor heat exchanger 15 to which the refrigerant pipe P is connected, and the drain pan 10 disposed below the indoor heat exchanger 15 are provided.

The dimension (width dimension) in the direction along the vehicle width direction of the indoor unit body 9 is set smaller than the width dimension of the end passage 4A. As an example, when the width dimension of the end passage 4A is 860 mm, the width dimension of the indoor unit main body 9 is smaller than 860 mm.
Further, the indoor unit main body 9 is formed with an opening 9a that opens downward. The indoor unit main body 9 is provided with a bottom plate 9b which can close a part of the opening 9a on the side away from the through hole 5a. The bottom plate 9 b is attached to the indoor unit body 9 by a hinge H or the like on the side away from the through hole 5 a side in the indoor unit body 9. At the time of installation of the indoor unit 7, the bottom plate 9b is fixed to the indoor unit main body 9 by a fastening member T such as a bolt to close a part of the opening 9a. When the fastening member T is removed, the bottom plate 9 b rotates around the hinge H, and the inside of the indoor unit main body 9 can be exposed.

  Here, the bottom plate 9 b may be fixed to the indoor unit main body 9 as a fastening member T with an easily removable member such as a quarter turn. A quarter turn is a fastener that can be tightened only by rotating the stud a quarter turn. The fastening member T may not come off from the bottom plate 9 b by, for example, a retaining retainer.

  The refrigerant pipe P is connected to a refrigerant pipe (not shown) of the outdoor unit 6. The refrigerant pipe P is disposed, for example, along the side outer plate inside the side outer plate of the vehicle body 1.

  The indoor heat exchanger 15 is disposed above the opening 9a at a position not closed by the bottom plate 9b. The indoor heat exchanger 15 performs heat exchange between the air in the indoor unit main body 9 and the refrigerant in the refrigerant pipe P to generate conditioned air. The indoor heat exchanger 15 cools indoor (inside) air during cooling operation, and warms indoor air during heating operation.

The indoor fan 14 is, for example, a sirocco fan. In the present embodiment, a plurality of indoor fans 14 are arranged side by side in the vehicle width direction above the bottom plate 9 b. The indoor fan 14 takes in indoor air into the indoor unit body 9. Air taken into the interior of the indoor unit body 9 is conditioned by the indoor heat exchanger 15, and blown out from the outlet 9c formed in the indoor unit body 9 in the longitudinal direction of the vehicle body 1 by the indoor fan 14. Therefore, air conditioning can be supplied indoors.
Although detailed illustration is omitted here, a louver R is provided in the ceiling portion 4Aa of the vehicle body 1 so as to cover the air outlet 9c from the longitudinal direction (see FIG. 1).

  The drain pan 10 is provided so as to be able to close the opening 9 a below the indoor heat exchanger 15 and to be attachable to and detachable from the indoor unit main body 9 by the fastening member T such as the quarter turn. The drain pan 10 has a pan shape so as to receive drain water generated by condensation of moisture in the air in the indoor heat exchanger 15.

  Specifically, the drain pan 10 is inclined with respect to the floor surface by extending upward from the center bottom surface 21 toward both sides in the longitudinal direction from the central bottom surface 21 parallel to the floor surface of the vehicle body 1 as the bottom surface. And a pair of inclined bottom surfaces 22. Moreover, the discharge port 11 which guides drain water outside is formed in the end surface of the vehicle width direction both sides of the drain pan 10. As shown in FIG. The discharge ports 11 open toward the central bottom surface 21 and protrude outward in the vehicle width direction, and have, for example, a cylindrical shape. A drain hose 12 can be attached to each discharge port 11. The drain hose 12 is fixed to the discharge port 11 by a hose band B or the like. The drain hose 12 is disposed along the side outer plate, for example, inside the side outer plate of the vehicle main body 1 similarly to the refrigerant pipe P. And the drain hose 12 is opened under the floor. Here, the outlet 11 may be provided only on one side in the vehicle width direction.

  Further, the drain pan 10 is provided with a flange-like portion 23 which protrudes outward on both sides in the vehicle width direction from an end edge of the side (upper side) attached to the indoor unit main body 9. The dimension in the vehicle width direction of the drain pan 10 including the flange portion 23 is equal to the dimension in the vehicle width direction of the indoor unit main body 9. The projecting dimension of the flange portion 23 from the end edge in the vehicle width direction may be equal to, for example, the projecting dimension of the discharge port 11 from the end surface of the flange portion 23 in the vehicle width direction. The fastening member T is inserted into the flange portion 23 so that the drain pan 10 can be attached to and detached from the indoor unit body 9. The fastening member T may be configured so as not to come off the flange portion 23 by, for example, a retainer or the like for removal.

  Here, the drain pan 10 may have a structure that allows, for example, the flange portion 23 to be caught on the indoor unit main body 9 so as not to drop out of the indoor unit main body 9 without using the fastening member T. . The structure may be configured to release the hooking of the flange portion 23 to the indoor unit main body 9 by lifting one side or the other side in the vehicle width direction upward.

Next, a method of maintaining the indoor unit 7 of the air conditioner 2 for a vehicle according to the present embodiment will be described with reference to FIG.
That is, this maintenance method includes a step S1 of removing the ceiling plate 8 to expose the drain pan 10, a step S2 of removing the drain hose 12 from the discharge port 11, and a step S3 of removing the drain pan 10 to expose the inside of the indoor unit 7. And contains.

In step S1, the drain pan 10 and the bottom plate 9b are exposed downward toward the end passage 4A.
In step S2, after the step S1, the drain hose 12 is removed from the outlet 11 by loosening the above-described hose band B.
In step S3, after the step S2, the drain pan 10 is removed from the indoor unit main body 9 by loosening the above-mentioned fastening member T.

  By executing these steps, the indoor fan 14 and the indoor heat exchanger 15 in the indoor unit main body 9 can be accessed.

  Here, in step S3, the drain pan 10 may be removed from the indoor unit main body 9 after being inclined in the vehicle width direction such that the other side is positioned above the one side in the vehicle width direction. For example, when the discharge port 11 is provided only on one side in the vehicle width direction, it is preferable to tilt the drain pan 10 in the vehicle width direction and to remove it in this manner.

  Further, in order to facilitate access to the indoor fan 14, the process of removing the fastening member T of the bottom plate 9b from the indoor unit main body 9 after step S1 and rotating about the hinge H to expose the opening 9a is executed. It is also good.

  As described above, in the vehicle 100 according to the embodiment described above, since the width dimension of the indoor unit 7 is smaller than the width dimension of the end passage 4A, the entire indoor unit 7 is exposed downward toward the end passage 4A. be able to. Therefore, access to the indoor unit 7 is facilitated, the indoor unit 7 can be easily checked on the end passage 4A, and the entire indoor unit 7 can be removed from the ceiling 4Aa. Thereby, the maintainability of the indoor unit 7 can be improved. That is, as in the case where the width dimension of the indoor unit 7 is larger than the width dimension of the end passage 4A, it is necessary to remove the components (the decorative plate, the frame, etc.) around the indoor unit 7 to access the indoor unit 7 Since the indoor unit 7 disappears, the indoor unit 7 can be easily maintained.

  In addition, when performing the above maintenance method, when the drain pan 10 is inclined in the vehicle width direction and then removed, the drain water stored in the drain pan 10 is moved toward the discharge port 11, and then the drain pan 10 is removed. become. Therefore, when the drain pan 10 is removed, the drain water can be guided to the discharge port, thereby reducing the possibility that the drain water stored in the drain pan 10 may scatter and contaminate the room, or the drain water may splash on workers. can do.

  Further, by removing the fastening member T of the bottom plate 9b from the indoor unit main body 9, access to the indoor fan 14 is facilitated, and the maintenance performance can be further improved.

  Here, in the above embodiment, the configuration in which the bottom surface of the drain pan 10 is parallel to the floor surface has been described as an example. However, the configuration of the drain pan 10 is not limited to this. As another example, as shown in FIG. 5, the bottom surface of the drain pan 10 can be an inclined surface 31. The inclined surface 31 is inclined downward toward one side of the drain pan 10 in the vehicle width direction.

  In this case, the drain water of the indoor unit 7 stored in the drain pan 10 flows along the inclined surface 31 toward the discharge port 11 on one side. Thereby, it can be avoided that drain water is normally stored in the drain pan 10. That is, when the drain pan 10 is removed, it is possible to reduce the possibility that the drain water may be scattered to contaminate the interior of the vehicle or that the drain water may splash on the worker.

Second Embodiment
Next, a second embodiment of the present invention will be described with reference to FIG. In addition, about the structure similar to the said 1st embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.
The present embodiment is different from the first embodiment in that the drain pan 10A and the ceiling plate 8 are integrated and the drain pan 10A is not fixed to the indoor unit main body 9.

  As shown in FIG. 6, the indoor unit body 9 is not provided with the bottom plate 9 b, and instead, a gap adjusting member 17 which is disposed below the indoor fan 14 and has an integral structure with the ceiling plate 8 is provided. The gap adjusting member 17 is a member formed of, for example, a resin, and is provided on the back surface of the ceiling plate 8 (the surface on the opposite side to the surface exposed to the inside of the vehicle main body 1).

  According to this configuration, since the drain pan 10A is integrally attached to the back surface of the ceiling plate 8, the drain pan 10A can be simultaneously removed from the indoor unit 7 by removing the ceiling plate 8. Thereby, the number of parts can be reduced, and the number of man-hours for maintaining the indoor unit 7 can also be reduced.

  Furthermore, in this configuration, a gap adjusting member 17 that fills the space is provided between the indoor fan 14 and the back surface of the ceiling plate 8. That is, even if there is a space between the indoor fan 14 and the ceiling plate 8, this space can be filled with the gap adjusting member 17, and the space under the indoor fan 14 becomes too large. It can be avoided. That is, a space (flow path) of an appropriate volume can be formed below the indoor fan 14, and the intake of the air of the indoor unit main body 9 by the indoor fan 14 and the supply of air into the room can be made smooth.

Third Embodiment
Subsequently, a third embodiment of the present invention will be described with reference to FIG. In addition, about the structure similar to said each embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. In the present embodiment, the drain pan 10B and the ceiling plate 8 have an integral structure as in the second embodiment, but it is larger between the indoor fan 14 and the back surface of the ceiling plate 8 as compared with the second embodiment. Space is not formed. In other words, the mounting height of the indoor unit main body 9 is set lower than in the first and second embodiments described above, and the gap adjusting member 17 is not provided.

  According to this configuration, as in the second embodiment, since the drain pan 10B is integrally attached to the back surface of the ceiling plate 8, the drain pan 10B is simultaneously removed from the indoor unit 7 by removing the ceiling plate 8. be able to. Thereby, the number of parts can be reduced, and the number of man-hours for maintaining the indoor unit 7 can also be reduced.

  The embodiments of the present invention have been described in detail with reference to the drawings, but the respective configurations and the combinations thereof and the like in the respective embodiments are merely examples, and additions and omissions of configurations are possible within the scope of the present invention. , Substitution, and other changes are possible. Further, the present invention is not limited by the embodiments, and is limited only by the scope of claims.

For example, a ceiling plate assembly in which the ceiling plate 8 of the second embodiment, the drain pan 10A, and the clearance adjustment member 17 are integrated, and a ceiling plate assembly in which the ceiling plate 8 of the third embodiment and the drain pan 10B are integrated You may replace with the drain pan 10 and ceiling plate 8 of 1st embodiment of existing installation.
That is, as in the method of replacing the ceiling plate shown in FIG. 8, step S11 is performed to remove the existing ceiling plate 8 and expose the existing drain pan 10 fixed to the indoor unit main body 9 downward.
Thereafter, step S12 of removing the existing drain pan 10 from the indoor unit body 9 is performed.
Finally, step S13 of assembling the ceiling plate assembly of the second embodiment and the third embodiment below the indoor unit main body 9 is performed.

  By performing such a process, it is possible to upgrade the vehicle air conditioner 2 of the first embodiment from the viewpoint of maintainability.

Reference Signs List 1 vehicle body 2 vehicle air conditioner 3 seat 4 passage 4A wife side passage 4Aa ceiling portion 5 end surface 5a through hole 6 outdoor unit 7 indoor unit 8 ceiling plate 9 indoor unit body 9a opening 9b bottom plate 9c outlet 10, 10A, DESCRIPTION OF SYMBOLS 10B drain pan 11 discharge port 12 drain hose 14 indoor fan 15 indoor heat exchanger 17 clearance adjustment member 21 center bottom 22 inclined bottom 23 flange-like portion 31 inclined surface 100 vehicle H hinge T fastening member P refrigerant piping R louver B hose band

Claims (11)

  It is provided on the ceiling of the end-side passage of the end-side end of the vehicle interior and can supply conditioned air to the room, and a dimension smaller than the width dimension of the end-side passage in the vehicle width direction An indoor unit of a vehicle air conditioner having as a width dimension in a direction along the. A heat exchanger and a fan disposed above a ceiling plate forming the ceiling portion;
An indoor unit body that accommodates the heat exchanger and the fan;
A drain pan which receives drain water generated by the heat exchanger and is detachably provided to the indoor unit body from below;
The indoor unit of the air conditioner for vehicles according to claim 1 which has.   The indoor unit for a vehicle air conditioner according to claim 2, wherein the drain pan is not fixed to the indoor unit body but integrally provided on the back surface of the ceiling plate. The drain pan is
An outlet for drain water provided on at least one side in the vehicle width direction and to which a drain hose is connected;
An inclined surface which is a bottom surface inclined downward toward the discharge port on the one side from the other side in the vehicle width direction when installed in the vehicle;
The indoor unit of the air conditioner for vehicles of Claim 2 or 3 which has these.   The indoor unit of a vehicle air conditioner according to any one of claims 1 to 4, wherein the width dimension is 550 mm or more and 1000 mm or less. An indoor unit of a vehicle air conditioner according to any one of claims 1 to 5.
An outdoor unit connected to the indoor unit and disposed outdoors;
A vehicle body to which the indoor unit and the outdoor unit are attached;
Vehicles equipped with It is provided on the ceiling of the end-side passage of the end-side end of the vehicle interior and can supply conditioned air to the room, and a dimension smaller than the width dimension of the end-side passage in the vehicle width direction A ceiling plate that covers from below the indoor unit of the vehicle air conditioner having as a width dimension in a direction along the
A heat exchanger disposed above the ceiling plate, and a drain pan not fixed to an indoor unit main body that accommodates a fan and integrally provided on the back surface of the ceiling plate;
Board assembly comprising:   The ceiling plate assembly according to claim 7, further comprising a gap adjusting member disposed below the fan and integrally provided with the ceiling plate. The maintenance method of an indoor unit according to any one of claims 1 to 5, wherein
Removing a ceiling plate forming the ceiling from the vehicle to expose the drain pan of the indoor unit downward;
Removing the drain hose from a drain water outlet provided on at least one side in the width direction of the drain pan;
Removing the drain pan to expose the interior of the indoor unit;
How to maintain indoor units, including   The maintenance method for an indoor unit according to claim 9, wherein, in the step of exposing the inside, the drain pan is removed after tilting the drain pan so that the other side is positioned above the one side. It is provided on the ceiling of the end-side passage of the end-side end of the vehicle interior and can supply conditioned air to the room, and a dimension smaller than the width dimension of the end-side passage in the vehicle width direction A heat exchanger having a width dimension in a direction along the space and disposed above a ceiling plate forming the ceiling portion, a fan, and an indoor unit body accommodating the heat exchanger and the fan; A vehicle provided with an indoor unit of an air conditioner for a vehicle, comprising: drain water generated by the heat exchanger, and a drain pan provided detachably from below with respect to the indoor unit body.
Removing the ceiling plate to expose the drain pan fixed to the indoor unit body downward;
Removing the drain pan from the indoor unit body;
Assembling the ceiling plate assembly according to claim 7 or 8 below the indoor unit main body;
How to replace the ceiling board, including

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