JP2008018905A - Vehicular air-conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular air-conditioner capable of preventing condensed water from staying in a tank part of a heat exchanger for cooling, and requiring few assembly man-hours. <P>SOLUTION: The vehicular air-conditioner comprises an evaporator 3 which is stored in an air-conditioning case 20 while an inlet side tank 22 provided on one end side is located in a lower storage part 20a, and an elastically deforming member 27 which is formed of an elastically deforming material, has a first rib 31 projecting on the inlet side tank 22 side and a second rib 30 in which the position of an end 30a is changed following the elastic deformation of the first rib 31, and is provided on the downstream side in the air feeding direction from the evaporator 3. The elastically deforming member 27 is elastically deformed and drawn to the storage part 20a side when the inlet side tank 22 is arranged in the storage part 20a, and the end 30a of the second rib 30 is tightly fitted to the tank part 22 side following the drawn first rib 31. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle air conditioner having a structure for guiding condensed water generated in a heat exchanger for cooling.

  As shown in FIG. 2 described in Patent Document 1, for example, a conventional vehicle air conditioner is arranged such that a cooling heat exchanger housed in an air conditioning case is oriented so that the surface of its core portion is in a substantially vertical direction. Has been. Further, in this vehicle air conditioner, a drain hole for draining condensed water generated in the cooling heat exchanger is provided at the bottom of the air conditioning case on the downstream side in the air blowing direction from the cooling heat exchanger.

  In such an apparatus, in order to cause the condensed water generated in the cooling heat exchanger to flow into the drain hole, a configuration is adopted in which the head side of the cooling heat exchanger is inclined toward the drain hole side rather than the bottom side. ing.

Moreover, as another structure for improving drainage, the structure which provided the tongue part which inclines toward the drainage hole side in the dish-shaped member provided so that the lower part of the bottom part of the heat exchanger for cooling may be covered may be provided. is there. According to this configuration, the condensed water generated in the cooling heat exchanger is received by the dish-like member and is guided to the drain hole side by flowing on the tongue surface.
Japanese Patent Laying-Open No. 2003-48423 (see FIG. 2)

  However, in the former vehicle air conditioner described in Patent Document 1, a part of the condensed water generated on the surface of the core of the cooling heat exchanger flows to the bottom (tank) of the heat exchanger. There was a problem that the condensed water that flowed to the bottom would freeze. In addition, when the plate-like member having the latter tongue is used, there is an effect of preventing the condensed water from flowing to the bottom of the heat exchanger. For this purpose, the plate-like member is attached to the heat exchanger. Therefore, there is a problem in that it is necessary to securely arrange at a predetermined position, it is difficult to assemble, and man-hours are required.

  Accordingly, an object of the present invention has been made in view of the above-mentioned problems, and it is possible to prevent the condensed water from stopping in the tank portion of the cooling heat exchanger and to reduce the number of assembling steps. Is to provide.

  In order to achieve the above object, the following technical means are adopted. That is, according to the first aspect of the vehicle air conditioner, the air conditioner case (20) including an air passage (2) through which air blown into the vehicle interior passes, and the tank portion (22) provided on one end side. 24), the cooling heat exchanger (3) housed in the air conditioning case (20) with the tank part (22) positioned downward, and the cooling heat exchanger (3) 20) A storage portion (20a, 20b) in which the tank portion (22, 24) is disposed in a state of being stored in the inside, and a first rib (20) formed from an elastically deformable material and protruding toward the tank portion (22) side 31, 37, 43) and second ribs (30, 36, 42) in which the positions of the end portions (30 a) change following the elastic deformation of the first ribs (31, 37, 43), Elastic deformation members (27, 33, 3 provided on the downstream side in the blowing direction from the cooling heat exchanger (3) ), And it is equipped with a.

  Further, the elastic deformation member (27, 33, 39) has an elastic first rib (31, 37, 43) when the tank portion (22, 24) is disposed in the storage portion (20a, 20b). The second ribs (30, 36, 42) are deformed and drawn into the storage parts (20a, 20b), and the second ribs (30, 36, 42) are moved to the tank part (22) by the elastic deformation of the first ribs (31, 37, 43). It is characterized by being in close contact with.

  According to the first aspect of the present invention, the condensed water collected on the downstream side in the blowing direction of the core portion in response to the air flow flows down to the tank portion, and further travels on the surface of the second rib that is in close contact with the tank portion. Since it flows downward, the condensed water can be drained without being retained in the tank portion. In addition, since the operation of arranging the second rib at a predetermined position of the tank portion is performed simultaneously with the drawing of the first rib by the operation of installing the tank portion in the storage portion, it can be easily performed and the assembly workability is improved. Also has an excellent effect.

  Furthermore, in the first invention, the cooling heat exchanger (3) includes a core portion (3a) having a core width extending in the longitudinal direction of the tank portion (22), and the second rib (30, 36, 42) are preferably formed so as to extend over at least the core width of the core portion (3a).

  According to the present invention, since the second rib is formed so as to extend over at least the core width of the core portion, the second water is brought into close contact with the tank portion even when the condensed water generated throughout the core portion flows down. Since it flows downward by the ribs, it is possible to prevent the condensate water from staying on the tank surface.

  Furthermore, in any one of the above inventions, the tank portion accommodated in the air conditioning case (20) so as to be positioned below has a plurality of tanks (22, 24) arranged in the air blowing direction, for cooling. The inflow pipe (21) through which the refrigerant flowing into the heat exchanger (3) passes is located downstream of the plurality of tanks (22, 24) in the blowing direction, and the elastic deformation members (27, 33, 39). Is preferably connected to the inflow side tank (22) in contact with. According to the present invention, the temperature of the inflow side tank surface becomes lower than that of the core portion by the low-temperature refrigerant first flowing into the inflow side tank, so that the inflow side tank surface is likely to be frozen. Therefore, by preventing the condensate generated in and around the inflow side tank from flowing downward by the second rib that is in close contact with the inflow side tank, it is possible to obtain a greater freezing prevention effect.

  Furthermore, in any one of the above inventions, the first ribs (31, 37) are formed in the direction in which the first ribs (31, 37) protrude and the tanks (22, 24) when the tank portions (22, 24) are disposed in the storage portions (20a, 20b). It is preferable that a cross section having a cut surface as a plane formed by the moving direction (X) of the portions (22, 24) is a tapered shape.

  According to this invention, the taper-shaped portion of the first rib is elastically deformed and drawn between the tank portion and the storage portion, whereby the root portion of the first rib having a strength higher than that of the taper portion is obtained.

  Furthermore, in any one of the above inventions, the first rib (31, 37) is preferably hollow. According to this invention, the elastic deformation of the first rib drawn between the tank portion and the storage portion can be further promoted, and the force acting on the root portion of the first rib and the side of the tank portion of the second rib can be increased. It is possible to prevent the degree of collapse from becoming excessive.

Furthermore, in any one of the above inventions, the elastic deformation member (27) has a third rib (44) extending from the root portion of the first rib (31) to the opposite side of the second rib (30). ,
In the third rib (44), the tank portions (22, 24) are arranged in the storage portions (20a, 20b), and the first ribs (31, 37, 43) are elastically deformed to store the storage portions (20a, 20b). ) Side, it is preferable that the first rib (31, 37, 43) bends toward the tank part (22, 24) following the elastic deformation of the first rib (31, 37, 43).

  According to this invention, the third rib follows the elastic deformation of the first rib and bends closer to the tank portion, thereby moving the end portion of the second rib located on the side opposite to the third rib to the tank portion side. Therefore, the adhesion degree between the second rib and the tank portion can be increased.

  Furthermore, in any one of the above inventions, the tank portion (22, 24) is disposed in the storage portion (20a, 20b), and the first rib (31, 37, 43) is elastically deformed to cause the storage portion. It is preferable that a support portion (20c) is provided to sandwich the first rib (31) in cooperation with the tank portions (22, 24) when pulled into the (20a, 20b) side.

  According to this invention, since the first rib is pushed by the tank portion and pushed by the support portion to the tank portion side, the pulling force acting on the first rib is strengthened and can be stabilized. The adhesion between the two ribs and the tank portion can be enhanced.

  In addition, the code | symbol in the parenthesis of each said means is an example which shows a corresponding relationship with the specific means of embodiment mentioned later.

(First embodiment)
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic diagram showing the internal configuration of the vehicle air conditioner of the present embodiment.

  The vehicle air conditioner according to the present embodiment includes an air conditioning case 20 disposed on the back side of an instrument panel in front of the passenger compartment, and air outlet ducts that connect the air conditioning case 20 and the passenger compartment outlet. . The air conditioning case 20 includes a plurality of case members, and is a resin molded product such as polypropylene, for example. The plurality of case members are integrally coupled by fastening means such as metal springs and screws to constitute the air conditioning case 20.

  Inside the air conditioning case 20, there are provided a blower 1 for blowing air inside or outside the vehicle compartment to the evaporator 3 and the following, and an air conditioning functional component arranged downstream of the blower 1. The blower 1 includes a centrifugal multiblade fan and a motor that drives the fan. The centrifugal multiblade fan is surrounded by a scroll casing. The blower outlet of the blower 1 is connected to the air passage 2 reaching the ventilation inlet of the evaporator 3 by a duct extending in the centrifugal direction of the centrifugal multiblade fan.

  The air-conditioning functional component arranged downstream of the blower 1 includes an evaporator 3 as a cooling heat exchanger provided so as to cross the entire blow passage, and a heater core 5 that heats the air that has passed through the evaporator 3. And an air mix door 4 that adjusts the amount of air that passes through the evaporator 3 through the heater core 5, an air mix chamber 6, a differential air outlet adjustment door 7 that is provided downstream of the air mix chamber 6, and a face air outlet An adjustment door 11 and a foot blowing amount adjustment door 15 are provided.

  The evaporator 3 evaporates the low-temperature and low-pressure refrigerant decompressed by an expansion valve in a refrigeration cycle (not shown) by receiving air from the blower 1 and cools the blown air passing around the tube through which the refrigerant flows. Is.

  The evaporator 3 is disposed such that the core portion 3b on the air inlet side and the core portion 3a on the outlet side form a plane that is substantially perpendicular to the air blowing direction. A bottom portion of the evaporator 3 is disposed in a storage portion 20 a in the air conditioning case 20. When the evaporator 3 is stored in the air conditioning case 3, it is inserted into the air conditioning case 20 with the bottom of the evaporator 3 at the top and moved in the X direction in FIG. 1 until the bottom is stored in the storage 20a. is there.

  The heater core 5 heats the air flowing around by using the high-temperature cooling water of the traveling engine as a heat source and heats the air flowing around it, and partially blocks the passage on the downstream side of the evaporator 3 in the air flow direction. Are arranged as follows.

  The air mix door 4 is a one-side pivoted plate-like door provided downstream of the evaporator 3, and adjusts the ratio of the amount of air passing through the heater core 5 and the amount of air bypassing the heater core 5. By controlling the opening degree of the air mix door 4, the amount of air heated by the heater core 5 is adjusted among the amount of air cooled by the evaporator 3, and the temperature of the air is adjusted by mixing these air in the air mix chamber 6. Is made.

  The air mix chamber 6 is a space in which the air flowing from the evaporator 3 and the air heated by the heater core 5 are mixed, and on the downstream side, the differential blowing air passage 8, the face blowing air passage 12, and the foot blowing air passage 16. Communicating with The air-conditioned air whose temperature is adjusted in the air mix chamber 6 is controlled at each mode blowing door such as the differential blowing amount adjusting door 7, the face blowing amount adjusting door 11, the foot blowing amount adjusting door 15, etc. Supplied into the passenger compartment.

  A differential blowout air passage 8 provided with a differential blowout amount adjusting door 7 communicates with a differential blowout opening 10 facing the vehicle interior by a connected differential blowout duct 9. The differential outlet 10 is an opening for blowing out conditioned air along the side of the vehicle interior such as the front window glass, and the degree of fogging of the front window glass or the like is reduced by blowing out the conditioned air. The differential blowout amount adjustment door 7 is a door having a configuration in which the opening degree can be controlled, and the blowout amount from the differential blower outlet 10 is adjusted by adjusting the ventilation opening area of the differential blowout air passage 8 by opening degree control. Is configured to do. In addition, the differential blowing amount adjustment door 7 of this embodiment is comprised with the door which a door main body rotates centering on a pivot.

  The face blowing air passage 12 in which the face blowing amount adjusting door 11 is provided communicates with a face blowing outlet 14 facing the vehicle interior by a connected face blowing duct 13. The face outlet 14 is an opening for blowing out conditioned air toward the upper body of the occupant, and is mainly used during cooling. The face blowout amount adjustment door 11 is a door having a configuration whose opening degree can be controlled, and the blowout amount from the face blowout opening 14 is adjusted by adjusting the ventilation opening area of the face blowout air passage 12 by opening degree control. Is configured to do. In addition, the face blowing amount adjustment door 11 of this embodiment is comprised with the door which a door main body rotates centering around a pivot.

  The foot blowing air passage 16 in which the foot blowing amount adjusting door 15 is provided communicates with a foot blowing outlet 18 facing the vehicle interior by a connected foot blowing duct 17. The foot outlet 18 is an opening for blowing conditioned air to the feet of the front seat occupant and the rear seat occupant, and is mainly used during heating. The foot blowing amount adjusting door 15 is a door having a configuration in which the opening degree can be controlled, and the blowing amount from the foot outlet 18 is adjusted by adjusting the ventilation opening area of the foot blowing air passage 16 by opening degree control. Is configured to do. In addition, the foot blowing amount adjustment door 15 of this embodiment is comprised with the door which a door main body rotates centering on a pivot.

  The blower 1, the air mix door 4, the differential blowout amount adjustment door 7, the face blowout amount adjustment door 11, and the foot blowout amount adjustment door 15 are controlled by a control device (not shown) that controls a servo motor that drives each door. Works by. Moreover, since each mode blowing door, such as the differential blowing amount adjustment door 7, the face blowing amount adjustment door 11, and the foot blowing amount adjustment door 15, can control the opening degree thereof, the ventilation opening area thereof according to the operation mode. Is adjusted so that the amount of air blown out from each of the vehicle interior air outlets can be controlled to be a predetermined air volume.

  Next, the structure of the drainage guide member 29 which contacts the evaporator 3 and the inflow side tank 22 of the evaporator 3 is demonstrated. FIG. 2 is a perspective view showing the configuration of the evaporator 3 and the drainage guide member 29 before the evaporator 3 is assembled.

  As shown in FIG. 2, the evaporator 3 includes a tank portion that is housed in the air conditioning case 20 so as to be positioned below. The tank portion is located on one end side of the evaporator 3 and includes a plurality of tanks arranged in the air blowing direction. The plurality of tanks include an inflow side tank 22 located on the downstream side in the blowing direction and an outflow side tank 24 located on the upstream side in the blowing direction with respect to the inflow side tank 22.

  Further, the evaporator 3 is disposed between the folding tank 23 disposed on the other end side, the core portion 3 a disposed between the inflow side tank 22 and the folding tank 23, and the folding tank 23 and the outflow side tank 24. A core portion 3b. The core portions 3a and 3b are composed of a plurality of tubes communicating between the tanks at both ends and heat transfer fins arranged between the tubes.

  The inflow side tank 22 is connected to an inflow pipe 21 for allowing the low-temperature and low-pressure refrigerant in the refrigeration cycle to flow in, and the outflow side tank 24 is supplied with the refrigerant after cooling the blown air. An outflow pipe 25 for returning to the refrigeration cycle is connected. Further, packing materials 26 are provided on both end surfaces of the evaporator 3 in the longitudinal direction of the tank, and the packing material 26 is provided between the both end surfaces and the inner wall surface of the air conditioning case 20 when the evaporator 3 is stored in the air conditioning case 20. Will be sealed. The evaporator 3 is accommodated in the air conditioning case 20 in such a manner that the inflow side tank 22 is positioned below and the folding tank 23 is positioned above.

  The evaporator 3 is a flat rectangular parallelepiped as a whole in which the thickness of the air blowing direction (the direction indicated by the white arrow in the center of the figure) is reduced by heat exchange, and this blowing direction is defined as the short direction of the tank. Yes. The core portions 3a and 3b of the evaporator 3 have a core width extending in the longitudinal direction of the inflow side tank 22, the turn-back tank 23, and the outflow side tank 24, and this core width is equal to the longitudinal length of each tank or It is formed slightly shorter.

  In the evaporator 3 configured as described above, the refrigerant flowing through the refrigeration cycle flows into the inflow side tank 22 through the inflow pipe 21. Further, the refrigerant rises in the tube of the core portion 3a located on the downstream side in the blowing direction, changes its direction in the folding tank 23, and flows down in the tube of the core portion 3b located on the upstream side in the blowing direction from the core portion 3a. Then, it flows into the outflow side tank 24 and flows out through the outflow pipe 25.

  A drainage guide member 29 is provided on the downstream side in the air blowing direction from the evaporator 3 housed in the air conditioning case 20. The drainage guide member 29 includes an elastic deformation member 27 and a base 28. The drainage guide member 29 can integrate the base 28 and the elastic deformation member 27 by integral molding by two-color molding.

  The base 28 is integrated with the air conditioning case 20 and supports the elastic deformation member 27. The base 28 preferably has a certain hardness that does not follow the deformation of the elastic deformation member 27, and can be formed of, for example, PP resin. The structure which integrates the base 28 and the air-conditioning case 20 can employ | adopt the structure fixed to each other by the latching part and the engagement hole, and the adhesion | attachment.

  The elastic deformation member 27 is formed of a material that is elastically deformed, and a first rib 31 that protrudes toward the inflow side tank 22, and a second rib in which the position of the end 30 a changes following the elastic deformation of the first rib 31. 30 and a third rib 44 extending from the base portion of the first rib 31 to the opposite side of the second rib 30. The second rib 30 is preferably formed in a range extending at least over the core width of the core portion 3a. In other words, the second rib 30 extends in the tank longitudinal direction so as to have a width equal to or greater than the length corresponding to the core width of the core portion 3a, and flows down the blower downstream surface of the core portion 3a. Condensed water coming can be received on the surface of the inflow side tank 22.

  For the first rib 31, for example, a rubber resin such as an elastomer can be used. The elastomer may be styrene, olefin, PVC, urethane, ester, or amide. Of these, ester and amide are preferred because of their high heat resistance. The second rib 30 and the third rib 44 may be formed of the same material as the first rib 31, but may be formed of a different material having elasticity different from that of the first rib 31. When the second rib 30, the third rib 44, and the first rib 31 are formed of different materials, they can be formed by integral molding by two-color molding.

  FIG. 3 is a partial cross-sectional view showing the positional relationship between the evaporator 3 and the drainage guide member 29 immediately before the evaporator 3 is assembled in the air conditioning case 20. FIG. 4 is a partial cross-sectional view showing a positional relationship between the evaporator 3 and the drainage guide member 29 in a state where the evaporator 3 is assembled in the air conditioning case 20.

  As shown in FIGS. 3 and 4, a packing material 32 is provided on the outer surface portion of the outflow side tank 24 of the evaporator 3, and the packing material 32 of the air conditioning case 20 is stored in the storage portion 20 a. The inner surface and the outflow side tank 24 are sealed.

  The first rib 31 of the elastically deformable member 27 has a cross section with a plane formed by a direction protruding toward the evaporator 3 and a moving direction X of the tank portion when the tank portion is disposed in the storage portion 20a as a cut surface. It has a tapered shape. In other words, it has a wedge shape or a triangular shape. With this configuration, the base portion of the first rib 31 is formed larger in appearance than the tip portion, and the strength is increased. The cross section of the first rib 31 is hollow. This hollow may be formed so that the thickness of the first rib 31 is uniform.

  When the evaporator 3 is disposed at a predetermined position for assembling in the air conditioning case 20, in other words, when the inflow side tank 22 and the outflow side tank 24 (tank portion) are disposed in the storage portion 20a, the elastic deformation member 27 is As shown in FIG. At this time, the first rib 31 is drawn between the bottom surface of the inflow side tank 22 and the bottom surface near the inflow side tank 22 forming the storage portion 20a, and is pulled obliquely downward.

  A support portion 20c is formed on the bottom surface near the inflow side tank 22 forming the storage portion 20a. The support portion 20c is configured such that when the inflow side tank 22 is disposed in the storage portion 20a, the first rib 31 is elastically deformed by being pushed by the inflow side tank 22, and the first rib 31 is pulled into the storage portion 20a side. Push up toward the inflow side tank 22. Thereby, the support part 20c functions so as to sandwich the first rib 31 in cooperation with the inflow side tank 22. In addition, it is preferable that the support part 20c is a shape which protrudes in the inflow side tank 22 direction.

  As the first rib 31 is deformed in this manner, the second rib 30 is pulled obliquely downward and tilts toward the inflow side tank 22 so that its end 30a is inflow side. The abutment comes into close contact with the air downstream surface 22 a of the tank 22. The air downstream surface 22a with which the second rib 30 abuts is the upper part of the inflow side tank 22a. More preferably, it is the vicinity of a portion where the inflow side tank 22a is coupled to the core portion 3a, or a corner of the cross section of the inflow side tank 22a shown in FIG.

  In the evaporator 3 installed in such a state, condensed air flows to the core portion 3a side due to air blowing by the blower 1, and further flows toward the lower inflow side tank 22 by gravity. Further, the condensed water is received by the end 30 a of the second rib 30, flows along the downstream surface in the blowing direction of the inclined second rib 30, further flows down through the base 28, and flows down the air conditioning case 20. The water reaches the drain hole 19 provided at the bottom and is drained to the outside.

  As shown in FIGS. 3 and 4, a wall portion that extends from the inner wall surface of the air conditioning case 20 and is formed below the storage portion 20a (for example, a wall portion located on the left side of the support portion 20c) In addition, it is not formed on both ends of the evaporator 3 in the tank longitudinal direction. Therefore, the condensed water generated and flowing down in the evaporator 3 flows toward the drainage holes 19 at both ends of the evaporator 3 in the longitudinal direction of the tank, so that the drainage flow is not hindered.

  As described above, the vehicle air conditioner of the present embodiment has the inflow side tank 22 provided on one end side positioned in the lower storage portion 20a, the evaporator 3 stored in the air conditioning case 20, and the elastically deformable material. The first rib 31 that protrudes toward the inflow side tank 22 and the second rib 30 that changes the position of the end portion 30 a following the elastic deformation of the first rib 31. And an elastically deformable member 27 provided on the downstream side in the blowing direction. Further, when the inflow side tank 22 is disposed in the storage portion 20 a, the elastic deformation member 27 is pulled into the storage portion 20 a side due to the elastic deformation of the first rib 31. At the same time, the end 30 a of the second rib 30 is in close contact with the inflow side tank 22.

  According to this configuration, the condensed water that collects on the downstream side in the blowing direction of the core portion 3 a in response to the air flow flows down to the surface of the inflow side tank 22, and is further in close contact with the surface of the inflow side tank 22. Since it flows down on the surface of 30, the condensed water can be drained without stopping around the inflow side tank 22. In addition, the work of arranging the second rib 30 at a predetermined position of the inflow side tank 22 is performed simultaneously with the drawing of the first rib 31 by the work of installing the inflow side tank 22 in the storage portion 20a. Also has an excellent effect. Even when a drainage guide member is manufactured for an evaporator having a different size, it can be easily applied by cutting the elastic deformation member 27 into an appropriate size length.

  Further, when the second rib 30 is formed so as to cover at least the core width of the core portion 3a, all the condensed water generated in the core portion 3a is received by the second rib 30 and travels on the downstream side surface in the blowing direction. Therefore, the condensed water staying on the surface of the inflow side tank 22 can be prevented.

  The inflow pipe 21 is preferably connected to the inflow side tank 22. When this configuration is adopted, the surface temperature of the inflow side tank 22 becomes lower than that of the core portion 3a due to the low-temperature refrigerant that first flows into the inflow side tank 22, and the surface of the inflow side tank 22 is likely to be frozen. . However, since the condensed water generated in the core portion 3a flows downward on the downstream side surface of the second rib 30 in the air blowing direction, the condensed water is not retained around the inflow side tank 22, so that the inflow in which freezing is likely to occur. Freezing of the surface of the side tank 22 can be effectively prevented.

  The third rib 44 follows the elastic deformation of the first rib 31 when the tank portion is disposed in the storage portion 20a and the first rib 31 is elastically deformed and pulled toward the storage portion 20a. It is preferable to bend toward the inflow side tank 22.

  According to this configuration, since the end portion 30a of the second rib 30 located on the opposite side of the third rib 44 can be set to the position where the third rib 44 is bent, the second rib 30 is moved to the tank portion side. The degree of close contact between the two ribs 30 and the inflow side tank 22 can be increased.

  In addition, the first rib 31 has a cut surface formed by the projecting direction and the moving direction X (installation direction) of the inflow side tank 22 when the inflow side tank 22 is disposed in the storage portion 20a. It is preferable that the cross-section is a tapered shape, a wedge shape, or a triangular shape.

  In the case of adopting this configuration, the tapered portion of the first rib 31 is drawn between the inflow side tank 22 and the storage portion 20a, so that a root portion that is stronger than the tapered portion can be formed. Further, since it is possible to prevent an excessive force acting on the root portion of the first rib 31, the degree of the second rib 30 following the first rib 31 to the side of the tank becomes excessive, and the elastic deformation member 27. It is possible to prevent excessive force from being applied to the power.

  The first rib 31 is preferably hollow. When this configuration is adopted, the elastic deformation of the first rib 31 drawn between the inflow side tank 22 and the storage portion 20a can be further promoted, and the force acting on the root portion of the first rib 31 and the first It is possible to prevent the degree of falling of the two ribs 30 toward the tank side surface from becoming excessive.

(Second Embodiment)
This embodiment is different from the first embodiment in that when the tank portion is disposed in the storage portion 20a, the bottom surface that forms the storage portion 20a is not provided. With this configuration, when the tank portion is disposed in the storage portion 20a, the first rib 31 is subjected to a force pushed in the moving direction X (installation direction) of the inflow side tank 22, but the inflow side tank 22 The force pushed to the side does not work.

  In the case of this configuration, the outflow side tank 24 is disposed in the storage portion 20b formed by the bottom surface provided to face the inflow side tank 24, and is supported from below by this bottom surface. On the other hand, the force supported from below does not act on the inflow side tank 22 unlike the outflow side tank 24, but for example, both end surfaces of the evaporator 3 in the tank longitudinal direction are supported by the inner wall surface of the air conditioning case 20. As a result, the inflow side tank 22 is maintained at a predetermined position in the air conditioning case 20.

  In the configuration of the present embodiment, the same effects as those of the first embodiment are achieved with respect to the functions and effects that the support portion 20c of the first embodiment does not contribute.

(Other embodiments)
The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  For example, drainage guide members 35 and 41 shown in FIGS. 6 and 7 are other embodiments of the drainage guide member 29. First, the drainage guide member 35 shown in FIG. 6 includes an elastic deformation member 33 including a first rib 37 and a second rib 36 similar to the drainage guide member 29, and a base 34. The drainage guide member 35 is different from the drainage guide member 29 only in the first rib 37.

  The first rib 37 has a tapered cross-section on the cooling heat exchanger side (left side in the figure) as in the case of the drainage guide member 29, and further tapers on the anti-cooling heat exchanger side (right side in the figure). And has a symmetrical rhombus or parallelogram cross-sectional shape as a whole. Further, the first rib 37 is hollow and is formed of an elastomer like the first rib 31 of the drainage guide member 29. In addition, the said cross section is formed with the direction which protrudes in the heat exchanger side for cooling of the 1st rib 37, and the moving direction X of the inflow side tank 22 when the inflow side tank 22 is arrange | positioned in the accommodating part 20a. It is a plane.

  When the cooling heat exchanger is stored in a predetermined position in the air conditioning case 20 and the inflow side tank 22 is disposed in the storage portion 20a, the first rib 37 of the elastic deformation member 33 is elastically deformed and stored. The end of the second rib 36 is brought into close contact with the air downstream surface 22 a of the inflow side tank 22 as the first rib 37 is further pulled in.

  Further, the drainage guide member 41 shown in FIG. 7 includes an elastic deformation member 39 including a first rib 43 and a second rib 42 similar to the drainage guide member 29, and a base 40. The drainage guide member 41 is different from the drainage guide member 29 only in the first rib 43. The 1st rib 43 has the plate-shaped cross section which protrudes in the heat exchanger side for cooling (left side of a figure). The first rib 43 is formed of an elastomer as with the first rib 31 of the drainage guide member 29. In addition, the said cross section is formed with the direction which protrudes in the heat exchanger side for cooling of the 1st rib 43, and the moving direction X of the inflow side tank 22 when the inflow side tank 22 is arrange | positioned in the accommodating part 20a. It is a plane.

  When the cooling heat exchanger is stored in a predetermined position in the air conditioning case 20 and the inflow side tank 22 is disposed in the storage portion 20a, the first rib 43 of the elastic deformation member 39 is elastically deformed and stored. The end of the second rib 42 comes into close contact with the air downstream surface 22 a of the inflow side tank 22 in accordance with the movement of the first rib 43 that has been further retracted.

  The drainage guide members 29, 35, and 41 are composed of the bases 28, 34, and 40 and the elastic deformation members 27, 33, and 39. In addition to integral molding, a configuration in which the locking portions and the engagement holes are engaged with each other, or a configuration in which they are fixed by bonding may be used.

It is the schematic diagram which showed the internal structure of the vehicle air conditioner in 1st Embodiment of this invention. In the vehicle air conditioner of 1st Embodiment, it is the perspective view which showed the structure of the evaporator 3 and the drainage guide member 29 before assembling the evaporator 3. FIG. In 1st Embodiment, it is the fragmentary sectional view which showed the positional relationship of the evaporator 3 and the waste_water | drain guide member 29 before assembling the evaporator 3. FIG. In 1st Embodiment, it is the fragmentary sectional view which showed the positional relationship of the evaporator 3 and the waste_water | drain guide member 29 in the state which assembled | attached the evaporator 3. FIG. In 2nd Embodiment, it is the fragmentary sectional view which showed the positional relationship of the evaporator 3 and the waste_water | drain guide member 29 in the state which assembled | attached the evaporator 3. FIG. It is the fragmentary sectional view showing the composition of drainage guide member 35 in other embodiments. It is the fragmentary sectional view showing the composition of drainage guide member 41 in other embodiments.

Explanation of symbols

2 Air passage 3 Evaporator (cooling heat exchanger)
3a Core part 20 Air-conditioning case 20a, 20b Storage part 20c Support part 21 Inflow piping 22 Inflow side tank (tank part)
27, 33, 39 Elastic deformation member 30, 36, 42 Second rib 30a End portion 31, 37, 43 First rib X Movement direction of tank portion

Claims (7)

An air conditioning case (20) having an air passage (2) through which air blown into the passenger compartment passes;
A cooling heat exchanger (3) which has a tank part (22) provided on one end side and which is stored in the air conditioning case (20) with the tank part (22) positioned below;
Storage units (20a, 20b) in which the tank units (22, 24) are arranged in a state where the cooling heat exchanger (3) is stored in the air conditioning case (20);
Following the elastic deformation of the first ribs (31, 37, 43) and the first ribs (31, 37, 43) which are formed of an elastically deformable material and protrude toward the tank part (22, 24) side. Elastic deformation members (27, 33) having second ribs (30, 36, 42) in which the positions of the end portions (30a) are changed and provided on the downstream side in the air blowing direction from the cooling heat exchanger (3). 39),
With
The elastic deformation member (27, 33, 39) has the first rib (31, 37, 43) when the tank portion (22, 24) is disposed in the storage portion (20a, 20b). The second ribs (30, 36, 42) are pulled into the storage part (20a, 20b) side by elastic deformation, and the second ribs (30, 36, 42) are moved to the tank part (22) along with the movement of the first ribs (31, 37, 43). A vehicle air conditioner characterized by being in close contact with the The cooling heat exchanger (3) includes a core portion (3a) having a core width extending in the longitudinal direction of the tank portion (22),
The vehicle air conditioner according to claim 1, wherein the second rib (30, 36, 42) is formed to extend at least over the core width of the core portion (3a). The tank unit housed in the air conditioning case (20) so as to be positioned below has a plurality of tanks (22, 24) arranged in the blowing direction,
An inflow pipe (21) through which the refrigerant flowing into the cooling heat exchanger (3) passes is located downstream of the plurality of tanks (22, 24) in the blowing direction, and the elastic deformation member (27, The vehicle air conditioner according to claim 1 or 2, characterized in that the vehicle air conditioner is connected to an inflow side tank (22) in contact with the inflow side tank (33, 39).   The first ribs (31, 37) of the elastically deformable members (27, 33) are formed when the tank portions (22, 24) are arranged in the protruding direction and the storage portions (20a, 20b). The vehicle air conditioner according to any one of claims 1 to 3, wherein a cross section with a plane formed by a moving direction (X) of the tank portion (22, 24) is a tapered shape. .   The vehicle air conditioner according to any one of claims 1 to 4, wherein the first ribs (31, 37) of the elastically deformable members (27, 33) are hollow. The elastic deformation member (27) has a third rib (44) extending from a root portion of the first rib (31) to the opposite side of the second rib (30),
The tank portions (22, 24) are disposed in the storage portions (20a, 20b), and the first ribs (31, 37, 43) are elastically deformed and pulled into the storage portions (20a, 20b) side. The third rib (44) bends closer to the tank portion (22, 24) following the elastic deformation of the first rib (31, 37, 43). The vehicle air conditioner according to any one of 1 to 5.   The tank portions (22, 24) are disposed in the storage portions (20a, 20b), and the first ribs (31, 37, 43) are elastically deformed and pulled into the storage portions (20a, 20b) side. A support portion (20c) for sandwiching the first rib (31) in cooperation with the tank portion (22, 24) when provided is provided. The vehicle air conditioner described.

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