JP6441596B2 - Vehicle air-conditioning structure - Google Patents

Description

  The present invention relates to a vehicle in which a part of an air conditioning unit provided in a cabin inside the vehicle body and another part of the air conditioning unit provided on the outside of the vehicle body are connected through a through-hole formed in the outer plate of the vehicle body. This relates to the air conditioning structure.

  Conventionally, there is a vehicle air-conditioning structure disclosed in Patent Document 1 below. According to this publication, the air conditioning structure of the vehicle is provided in a compartment inside the vehicle body, and an evaporator, which is a part of an air conditioning unit assembled to the stationary side member of the vehicle body, and the outside of the vehicle body that partitions the inside and outside of the vehicle compartment. A through-hole formed in a dash panel that is a plate, a refrigerant compressor that is provided on the outside of the vehicle body and is connected to a part of the air-conditioning unit through the through-hole, and the through-hole And a cylindrical sealing material for sealing between the mouth edge portion and the portion of the air conditioning unit passing through the through-hole. In this case, one end of the sealing material in the axial direction is elastically pressed against the evaporator side, and the end edge of the other end passes through the through hole, and the seal member is attached to the edge of the through hole. Locked from the chamber side.

  Then, by the operation of the air conditioning unit, the refrigerant is caused to flow between the part and the other part, so that the passenger compartment can be cooled and desired air conditioning can be obtained in the passenger compartment. It has become.

  On the other hand, the work of assembling the air conditioning unit to the vehicle body side is performed as follows.

  That is, first, the sealing material is attached to the dash panel by fitting the edge of the other end of the sealing material to the edge of the through-hole. Next, an evaporator, which is a part of the air conditioning unit, is assembled to the stationary member of the vehicle body in the passenger compartment. At this time, the evaporator side is elastically pressed against one end of the sealing material. Then, the gap between the edge portion of the through hole and the portion of the air conditioning unit that passes through the through hole is sealed by the sealing material, and the assembling operation is completed.

JP 2004-114922 A

  By the way, in the assembly work of the air conditioning unit on the vehicle body side, the evaporator side is pressed against the vehicle body while the evaporator side is pressed against one end portion of the seal member having the other end portion attached to the dash panel in the passenger compartment. Although it is supposed to be assembled to the stationary side member, since the space between the dash panel and the evaporator side around the sealing material is narrow, the assembling operation tends to be complicated.

  Further, after the assembly operation is completed, the one end portion of the sealing material and the evaporator side are simply kept in a state of being elastically pressed against each other. For this reason, an external force such as vibration when the vehicle travels tends to cause a relative displacement between the other end portion of the sealing material and the evaporator side, and the sealing performance by the sealing material between these tends to occur. May decrease.

  The present invention has been made paying attention to the above-described circumstances, and an object of the present invention is to facilitate the assembly work of the air conditioning unit to the vehicle body side and to provide the vehicle body after the assembly work. The sealing performance by the sealing material between the side and the air conditioning unit is maintained to be good.

The invention according to claim 1 is provided in the passenger compartment 10 inside the vehicle body 2 and is mounted to the stationary panel of the vehicle body 2, and supported by the instrument panel 26. The instrument panel 26 A part 29a of the air conditioning unit 29 assembled to the stationary side member of the vehicle body 2 through the above, a through-hole 30 formed in the outer plate of the vehicle body 2 partitioning the inside and outside of the passenger compartment 10, and provided outside the vehicle body 2, The other part 29b of the air conditioning unit 29 connected to a part 29a of the air conditioning unit 29 through the through hole 30, and the edge of the through hole 30 and the part of the air conditioning unit 29 passing through the through hole 30. In an air conditioning structure of a vehicle provided with a sealing material 31 that seals between,
The air conditioning unit 29 includes a pair of cooling units that allow the cooling water 36 to circulate by causing the heater core 35 supported by the instrument panel 26 and the cooling water jacket formed in the engine 5 to communicate with each other. Water pipes 37, 37 and a joint 38 that can connect the respective divided end portions 37 a, 37 a in the longitudinal direction of each of the cooling water pipes 37 divided in the vicinity of the through hole 30. And
The air conditioning unit 29 includes an evaporator 41 and an expansion valve 42 supported by the instrument panel 26, a compressor 44 linked to the engine 5, and a condenser disposed near the front of the engine 5. 44 and a pair of refrigerant pipes 46 and 46 that allow these refrigerants to communicate with each other so that the refrigerant can be circulated. In the vicinity of the through-hole 30, intermediate portions in the longitudinal direction of the refrigerant pipes 46 are respectively divided. The divided end portions 46a are connected to each other by the expansion valve 42,
The sealing material 31 is attached to a rubber-made elastic sealing material body 50 that closes the through-hole 30 from the outside of the vehicle body 2, and an outer edge portion of the sealing material body 50. A resin locking tool 51 detachably locked from the outside of the vehicle body 2;
The through holes 57 and 57 for cooling water pipes through which the divided end portions 37a and 37a of the pair of cooling water pipes 37 and 37 are passed through the seal material main body 50 and the pair of refrigerant pipes 46 are divided. Through holes 58 and 58 for the refrigerant pipe through which the end 46a is passed,
In the vicinity of the through hole 30, the divided end portions 37 a and 37 a of the cooling water pipes 37 and 37 and the divided end portions 46 a and 46 a of the refrigerant pipes 46 and 46 are connected to each other . The vehicle air-conditioning structure is characterized in that a connecting tool 61 for connecting the sealing material 31 together with the other portion 29b of the air-conditioning unit 29 to the portion 29a is provided .

  In addition, in this section, the reference numerals and drawing numbers appended to the above terms are not intended to limit the technical scope of the present invention to the “Example” section and the contents of the drawings described later.

  The effects of the present invention are as follows.

According to the first aspect of the present invention, there is provided an instrument panel provided in a passenger compartment inside the vehicle body and assembled to a stationary side member of the vehicle body, supported by the instrument panel, and stationary of the vehicle body via the instrument panel. A part of the air conditioning unit assembled to the side member, a through-hole formed in the outer plate of the vehicle body that partitions the inside and outside of the passenger compartment, and provided on the outside of the vehicle body and connected to a part of the air-conditioning unit through the through-hole In the air conditioning structure of the vehicle comprising the other part of the air conditioning unit, and the sealing material that seals between the edge of the through hole and the part of the air conditioning unit that passes through the through hole,
The sealing material can be locked to the edge of the through-hole from the outside of the vehicle body.

  For this reason, in the assembly work of the air conditioning unit to the vehicle body side, the above-mentioned penetration is tried to seal between the edge portion of the through-hole formed in the outer plate of the vehicle body and the portion of the air-conditioning unit that penetrates this through-hole. When the work of locking the sealing material to the mouth edge of the mouth is performed, this work can be performed from the outside of the vehicle body, which can easily take a wider work space than the vehicle compartment. Therefore, the work of assembling the air conditioning unit can be facilitated accordingly.

  Moreover, the connection tool which connects the said sealing material with the other part of the said air conditioning unit with respect to a part of said air conditioning unit is provided.

  For this reason, since the other part of the air conditioning unit and the sealing material are supported by the stationary member of the vehicle body through the part of the air conditioning unit by the connector, the through holes formed in the outer plate of the vehicle body The relative position between the mouth edge and the sealing material is firmly held so as to maintain a constant state. Therefore, it is possible to prevent relative displacement between the edge portion of the through-hole and the sealing material due to external force such as vibration during traveling of the vehicle, and the sealing performance by the sealing material between them is Maintained well.

  In addition, the various effects described above are such that the sealing material can be locked to the edge of the through-hole from the outside of the vehicle body, or the sealing material is connected to a part of the air conditioning unit together with the other part of the air conditioning unit. This is achieved with a simple configuration in which a coupling tool is provided. Therefore, the air conditioning structure of the vehicle described above is particularly useful in terms of productivity.

It is an II sectional view expanded sectional view of the FIG. It is a simplified side fragmentary sectional view of a vehicle front part. FIG. 2 is a partial perspective development view of what is shown in FIG. 1.

  The air conditioning structure for a vehicle according to the present invention enables easy assembly work of the air conditioning unit to the vehicle body side and good sealing performance by the sealing material between the vehicle body side and the air conditioning unit after the assembly work. In order to realize the purpose of maintaining the state as it is, a form for carrying out the present invention is as follows.

  That is, an air conditioning structure of a vehicle is provided in a passenger compartment inside the vehicle body, and is mounted on a stationary member of the vehicle body, and is supported by the instrument panel, and the vehicle body is configured through the instrument panel. A part of the air conditioning unit assembled to the stationary side member, a through-hole formed in the outer plate of the vehicle body that partitions the inside and outside of the passenger compartment, and an external side of the vehicle body are connected to a part of the air-conditioning unit through the through-hole. A sealing material that seals between the other part of the air conditioning unit, the edge of the through hole, and the part of the air conditioning unit that passes through the through hole.

  The sealing material can be locked to the edge of the through-hole from the outside of the vehicle body. A connector for connecting the sealing material together with the other part of the air conditioning unit to a part of the air conditioning unit is provided.

  In order to explain the present invention in more detail, an embodiment thereof will be described with reference to the accompanying drawings.

  In the figure, reference numeral 1 denotes a vehicle exemplified by a small truck, and an arrow Fr indicates the front in the traveling direction of the vehicle 1. The left and right described below refer to the width direction of the vehicle body 2 of the vehicle 1 toward the front.

  The vehicle 1 includes a vehicle body 2, a rear wheel 4 that is suspended by the vehicle body 2 and supports the vehicle body 2 on the traveling surface 3, and an engine 5 that can drive the vehicle 1. The front portion of the vehicle body 2 is a driver's cab 8 and the rear portion is a loading platform 9.

  The interior of the driver's cab 8 of the vehicle body 2 serves as a passenger compartment 10, and the right side of the passenger compartment 10 serves as a driver's compartment. The driver's cab 8 is made of sheet metal, and forms the front and rear surfaces of the passenger compartment 10, the rear plates 12 and 13, the left and right side plates 14 of the passenger compartment 10, and the upper surface of the passenger compartment 10. And a floor panel 16 that forms the lower surface of the passenger compartment 10. The constituent members 12 to 16 of the cab 8 constitute a stationary member of the vehicle body 2 and constitute an outer plate that partitions the inside and outside of the passenger compartment 10.

  The floor panel 16 is bent so that the rear part is one step higher than the front part. The rear portion of the floor panel 16 is a seat riser, and a seat 20 that allows the occupant 19 to be seated forward is supported on the upper surface of the seat riser. The front portion of the floor panel 16 is a foot placement portion that allows the occupant 19 on the seat 20 to place a foot. The engine 5 is disposed in a space 21 below the rear portion (seat riser) of the floor panel 16, and the engine 5 is supported by a skeleton member at the front portion of the vehicle body 2.

  A front cross member 25 is provided which extends in the width direction of the vehicle body 2 and is provided at the front lower portion of the passenger compartment 10 and is fixed to the left and right side plates 14 with fasteners 24 and assembled to the left and right side plates 14. A resin instrument panel 26 is provided at the front lower part of the vehicle compartment 10. The instrument panel 26 is supported by the front cross member 25 and assembled to the side plate 14 together with the front cross member 25.

  An air conditioning unit 29 for air-conditioning the passenger compartment 10 is provided so that the passenger compartment 10 can be heated or cooled. A portion 29 a of the air conditioning unit 29 is supported by the instrument panel 26 and is assembled to the left and right side plates 14 via the instrument panel 26 and the front cross member 25. A through-hole 30 is formed at the front end of the floor panel 16 to communicate the inside and outside of the central portion of the vehicle compartment 10 in the width direction of the vehicle body 2. The other part 29 b of the air conditioning unit 29 is provided on the outside (lower part) side of the cab 8 of the vehicle body 2 and is connected to a part 29 a of the air conditioning unit 29 through the through hole 30. A sealing material 31 is provided for sealing between the edge portion of the through hole 30 and the portion of the air conditioning unit 29 that passes through the through hole 30.

  The air conditioning unit 29 includes a pair of heater cores 35 supported by the instrument panel 26, and a heater core 35 and a cooling water jacket formed in the engine 5 that communicate with each other so that the cooling water 36 can be circulated. The coolant pipes 37, 37 and the split end portions 37 a, 37 a in the middle in the longitudinal direction of each of the coolant pipes 37 split in the vicinity of the through-hole 30 can be connected with one touch. And a one-touch joint 38. The vehicle compartment 10 can be heated via the heater core 35 by circulation of the cooling water 36 warmed by cooling the engine 5.

  In the above case, the heater core 35 and the cooling water pipes 37 extending from the heater core 35 to the respective cut ends 37a are integrally supported by the instrument panel 26 and are part 29a of the air conditioning unit 29. Configure. On the other hand, each cooling water pipe 37 and each joint 38 from the engine 5 until reaching each divided end portion 37 a constitute another portion 29 b of the air conditioning unit 29. In this case, the cooling water pipes 37 on the engine 5 side are flexible and can be bent freely.

  The air conditioning unit 29 includes an evaporator 41 and an expansion valve 42 supported by the instrument panel 26, a compressor 43 linked to the engine 5, and a condenser disposed near the front of the engine 5, respectively. 44 and a pair of refrigerant pipes 46 and 46 that allow these refrigerants 41 to 44 to communicate with each other to circulate the refrigerant 45. In the vicinity of the through hole 30, midway portions in the longitudinal direction of the refrigerant pipes 46 are divided, and the divided end portions 46 a are connected to each other by the expansion valve 42. Then, the circulation of each refrigerant 45 dehumidifies the air in the passenger compartment 10 via the evaporator 41, and the passenger compartment 10 can be cooled.

  In the above case, the evaporator 41 and the expansion valve 42 and the refrigerant pipes 46 extending from the evaporator 41 and the expansion valve 42 to the divided end portions 46a are integrally supported by the instrument panel 26. A part 29a of the air conditioning unit 29 is configured. On the other hand, the compressor 43 and the condenser 44 and the refrigerant pipes 46 extending from the compressor 43 and the condenser 44 to the divided end portions 46a constitute the other part 29b of the air conditioning unit 29.

  The sealing material 31 is attached to a rubber-made elastic sealing material body 50 that closes the through-hole 30 from the outside (lower part) side of the floor panel 16 of the vehicle body 2, and an outer edge portion of the sealing material body 50. A hook-shaped resin locking tool 51 that is detachably locked from the outside (lower part) side of the floor panel 16 to the mouth edge of the mouth 30, and extends along the surface direction of the sealing material body 50, An aluminum metal rigid plate 52 whose outer edge is supported by the sealing material main body 50, and a midway portion in the surface direction of the rigid plate 52, and a portion exposed to the lower region of the floor panel 16 from below. It has a pair of elastic left and right seal rings 53, 53 made of rubber.

  In the above case, the outer end edge portion of the sealing material main body 50 is pressed against the lower surface of the mouth edge portion of the through-hole 30, and the pressure contact portion is sealed. In addition, the locking tool 51 has sufficiently larger rigidity than the sealing material body 50 and is firmly locked to the edge portion of the through-hole 30, and by this locking, the sealing material body 50, The rigid plate 52 and the seal ring 53 are firmly supported by the floor panel 16.

  A pair of through holes 57 and 57 are formed in the sealing material body 50, and the divided end portions 37 a of the cooling water pipes 37 on the heater core 35 side are passed through the through holes 57. The hole edge portion of each through hole 57 is elastically pressed against the outer peripheral surface of each divided end portion 37a, and the pressure contact portion is sealed.

  A pair of other through holes 58 are formed on the axial center of each seal ring 53 and in the middle of the rigid plate 52 in the surface direction. The compressor 43 and the condenser 44 are formed in these other through holes 58. The split end 46a of each refrigerant pipe 46 on the side is penetrated. The hole edge portion of each seal ring 53 is elastically pressed against the outer peripheral surface of each divided end portion 46a, and the pressure contact portion is sealed.

  In addition, a drain hole 59 is formed in the sealing material body 50. The drain hole 59 is for discharging a dehumidifying liquid when the evaporator 41 is dehumidified by the evaporator 41.

  A connector 61 for connecting the seal material 31 together with the refrigerant pipe 46 on the condenser 43 side and the condenser 44 side which is the other part 29b of the air conditioning unit 29 to the valve box of the expansion valve 42 which is the part 29a of the air conditioning unit 29. Is provided. The connector 61 is externally fitted to the divided end portions 46a of the refrigerant pipes 46 on the compressor 43 and condenser 44 sides, and a fastening plate 62 that is movable upward along with the divided end portions 46a and the fastening plate 62. The plate 62 is brought into pressure contact with the lower surface of the rigid plate 52 via a flange formed on the divided end portion 46a of each refrigerant pipe 46 and each seal ring 53, and the rigid plate 52 and the fastening plate 62 are integrated. And a fastener 63 to be fastened to the expansion valve 42.

  The assembly work of the part 29a and the other part 29b of the air conditioning unit 29 to the vehicle body 2 side is performed as follows.

  That is, first, the heater core 35 and the evaporator 41, which are a part 29a of the air conditioning unit 29, are assembled to the instrument panel 26, and the assembled bodies 26 and 29a are attached to the front portion of the passenger compartment 10 by a one-dot chain line in FIG. It is moved forward and downward from the position shown, and assembled to the left and right side plates 14 of the vehicle body 2 as shown by the solid line in FIG.

  Next, as shown by the solid line in FIG. 1, the sealing material 31 is engaged with the edge portion of the through-hole 30. At this time, the through holes 57 of the sealing material main body 50 of the sealing material 31 are fitted into the divided end portions 37a of the cooling water pipe 37 on the heater core 35 side. Further, the rigid plate 52 of the sealing material 31 is made to face (including contact and pressure contact) with the lower surface of the expansion valve 42.

  Next, as shown by the solid line in FIG. 1, the divided end portions 37 a of the cooling water pipes 37 on the engine 5 side are connected to the divided end portions 37 a of the cooling water pipes 37 on the heater core 35 side by joints 38. . Further, the divided end portions 46a of the refrigerant pipes 46 on the compressor 43 and the condenser 44 side are fitted into the expansion valve 42 through the other through holes 58 of the sealing material 31, and the divided ends. The portion 46 a and the sealing material 31 are connected to the expansion valve 42 by the connecting tool 61.

  Then, the gap between the edge of the through hole 30 and the portion of the air conditioning unit 29 that passes through the through hole 30 is sealed by the seal material 31, and the seal material 31 includes the expansion valve 42. It is firmly supported by the left and right side plates 14 of the vehicle body 2 via a part 29 a of the air conditioning unit 29 and the instrument panel 26. For this reason, the sealing performance by the said sealing material 31 will be maintained favorable, and the said assembly | attachment operation | work is complete | finished by this.

  According to the above configuration, the sealing material 31 can be locked to the edge of the through-hole 30 from the outside of the vehicle body 2.

  For this reason, in the assembly work of the air conditioning unit 29 on the vehicle body 2 side, the edge portion of the through-hole 30 formed in the floor panel 16 that is the outer plate of the vehicle body 2 and the air-conditioning unit 29 that penetrates the through-hole 30 are provided. When the work for locking the sealing material 31 to the rim of the through-hole 30 is performed in an attempt to seal the gap between the parts, this work is more work than the vehicle compartment 10 where the instrument panel 26 and the like are present. This can be done from the outside of the vehicle body 2 where a large space can be easily taken. Therefore, the work of assembling the air conditioning unit 29 can be facilitated accordingly.

  In addition, a connecting tool 61 for connecting the sealing material 31 together with the other part 29 b of the air conditioning unit 29 to the part 29 a of the air conditioning unit 29 is provided.

  For this reason, the other part 29b of the air conditioning unit 29 and the sealing material 31 are supported by the connecting tool 61 on the left and right side plates 14 which are stationary members of the vehicle body 2 via the part 29a of the air conditioning unit 29. Therefore, the relative position between the edge portion of the through-hole 30 formed in the floor panel 16 that is the outer plate of the vehicle body 2 and the sealing material 31 is firmly held so as to maintain a constant state. Therefore, it is possible to prevent relative displacement between the edge portion of the through-hole 30 and the sealing material 31 due to an external force such as vibration during traveling of the vehicle 1, and the sealing material 31 between them. The sealing performance by is maintained well.

  Here, as in the above-described embodiment, the outer panel of the vehicle body 2 is the floor panel 16 that forms the lower surface of the passenger compartment 10, and the edge portion of the through-hole 30 formed in the floor panel 16 and the through-hole When the space between the air conditioning unit 29 penetrating 30 is sealed with the sealing material 31, foreign matters such as stones and mud that are splashed up by the wheels 4 when the vehicle 1 travels are the sealing material 31. Tend to collide easily. In this case, a large impact force is applied to the sealing material 31, and there is a possibility that the sealing material 31 falls off from the edge portion of the through-hole 30.

  However, as described above, since the other portion 29b of the air conditioning unit 29 and the sealing material 31 are supported by the left and right side plates 14 which are stationary members of the vehicle body 2, this support is made strong. Therefore, as described above, even when a large impact force is applied to the sealing material 31 when the vehicle 1 is traveling, the sealing material 31 may drop off from the edge of the through-hole 30 and cause trouble. This is prevented.

  In addition, the various effects described above are such that the sealing material 31 can be locked to the edge of the through-hole 30 from the outside of the vehicle body 2, or the sealing material 31 is attached to the part 29 a of the air conditioning unit 29. This is achieved by a simple configuration in which a connecting tool 61 that is connected together with the other portion 29b of 29 is provided. Therefore, the air conditioning structure of the vehicle 1 described above is particularly useful in terms of productivity.

  The outer plate of the vehicle body 2 may be a dash panel that partitions the engine room and the vehicle compartment inside the vehicle body 2 in a passenger car. The compressor 43 may be an electric type. In this case, the arrangement of the compressor 43 is not related to the engine 5 and can be arranged at a desired position.

  Further, the related configuration of the sealing material 31 and the connecting tool 61 and the refrigerant pipe 46 may be applied to the cooling water pipe 37. Further, the connecting tool 61 may be a one-touch joint 38 instead of the fastener 63.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Car body 3 Running surface 4 Wheel 5 Engine 10 Car compartment 14 Side plate (stationary side member)
16 Floor panel (outer plate)
26 Instrument Panel 29 Air Conditioning Unit 29a Part 29b Other Part 30 Through Port 31 Sealing Material 61 Connector

Claims (1)

An instrument panel provided in a passenger compartment inside the vehicle body and assembled to the stationary side member of the vehicle body, and an air conditioning unit supported by the instrument panel and assembled to the stationary side member of the vehicle body via the instrument panel A through hole formed in the outer plate of the vehicle body that partitions the inside and outside of the passenger compartment, and the other part of the air conditioning unit that is provided on the outer side of the vehicle body and is connected to a part of the air conditioning unit through the through hole. In the air conditioning structure of a vehicle provided with a sealing material that seals between the edge portion of the through hole and the portion of the air conditioning unit that passes through the through hole,
The air conditioning unit includes a heater core supported by the instrument panel, a pair of cooling water pipes that allow the heater core and a cooling water jacket formed in the engine to communicate with each other to circulate the cooling water, and the penetration A joint that enables connection of each divided end portion of the midway portion in the longitudinal direction of each of the cooling water pipes divided in the vicinity of the mouth,
In addition, the air conditioning unit communicates the evaporator and the expansion valve respectively supported by the instrument panel, the compressor linked to the engine, the condenser arranged near the front of the engine, and these. And a pair of refrigerant pipes that allow the refrigerant to circulate, and in the vicinity of the through-holes, midway portions in the longitudinal direction of the refrigerant pipes are respectively divided, and the divided end portions are respectively separated by the expansion valves. Are connected to each other,
The sealing material is attached to a rubber-made elastic sealing material main body that closes the through-hole from the outside of the vehicle body, and an outer edge portion of the sealing material main body. And a resin locking device that is removably locked,
A through hole for the cooling water pipe through which the divided end portions of the pair of cooling water pipes penetrate the seal material body, and a through hole for the refrigerant pipe through which the divided end portions of the pair of refrigerant pipes are penetrated A hole is formed,
The split ends of the cooling water pipe and the split ends of the refrigerant pipe are connected to each other in the vicinity of the through hole, and the seal material is connected to the other part of the air conditioning unit. A vehicle air-conditioning structure characterized in that a connector for connection with the vehicle is provided .

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