JP2006213091A - Vehicular air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive structure for nipping and sealing a pipe insulator 122 of a refrigerant pipe 12H even in a semi-centrally placed unit. <P>SOLUTION: The refrigerant pipe 12H is laid around the outside of an air-conditioning case 11, and the tip side is sandwiched via the pipe insulator 122 by an outside surface of an air blower case 45 and a cover member 47. Thus, a pipe pressing hole 47b formed of the outside surface of the air blower case 45 and the cover member 47, is formed in a dimension for compressing the pipe insulator 122 closely installed in a pipe 121 by a proper compression quantity over the whole periphery of the outer periphery. The tip side of the refrigerant pipe 12H is held by and fixed to the outside surface of the air blower case 45 by the inexpensive structure for nipping and sealing this pipe insulator 122, and is also closely sealed with the air blower case 45 and the cover member 47. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an air conditioning unit that is disposed in a vehicle interior and includes a cooling heat exchanger in an air conditioning case that forms an air flow path, and is connected to the side of the air travel direction of the air conditioning unit with respect to the vehicle traveling direction. A blower unit with a built-in blower in a blower case, and a refrigerant pipe fitted with a pipe heat insulating protective member, one end of the refrigerant pipe being connected to a heat exchanger for cooling, and the other end side being a dash panel of the vehicle body The present invention relates to a vehicle air conditioner that extends to the through-hole portion, and particularly relates to the handling of refrigerant piping.

In a conventional vehicle air conditioner, for example, as shown in Patent Document 1 below, a pipe heat insulating protection member (pipe insulator) is attached to a refrigerant pipe from a cooling heat exchanger built in an air conditioning case, There is one that prevents leakage of air and condensed water from the pipe through-hole portion by sandwiching it with an air conditioning case that divides the portion.
Japanese Patent Laid-Open No. 10-16544

  However, in recent years, an air conditioner for a vehicle such as a passenger car has an air conditioner unit including an evaporator (cooling heat exchanger) built in a substantially central portion in the vehicle left-right direction in the lower part of the instrument panel in the passenger compartment. The so-called semi-center-placed type, which is arranged to be offset from the center to the passenger seat side in the lower part of the instrument panel in the passenger compartment, has become the mainstream.

  In this semi-center placement unit, the evaporator is arranged substantially in parallel with the dash panel of the vehicle. Therefore, as shown in the above-mentioned Patent Document 1 (so-called horizontal placement unit), the refrigerant pipe is directly connected from the air conditioning case to the dash panel. It is difficult to put out through the passage because of restrictions on the position of the engine and the placement of the evaporator, and in many cases, the refrigerant pipe is extended to the blower unit side and then the dash panel is passed through.

  The present invention has been made in view of the above-described conventional technology, and an object of the present invention is to realize an inexpensive structure that sandwiches and seals a pipe insulator of refrigerant piping as shown in Patent Document 1 even in a semi-centered unit. An object of the present invention is to provide a vehicle air conditioner that can be used.

In order to achieve the above object, the present invention employs technical means described in claims 1 to 5. That is, in the invention according to claim 1, an air conditioning unit (10) having a cooling heat exchanger (12) built in an air conditioning case (11) disposed in the passenger compartment and forming an air flow path,
A blower unit (4) which is connected to a side of the air-conditioning unit (10) in the vehicle traveling direction and has a blower (9) built in a blower case (45) forming an air flow path;
A refrigerant pipe (12H) equipped with a pipe heat insulating protection member (122),
In the vehicle air conditioner, one end of the refrigerant pipe (12H) is connected to the cooling heat exchanger (12) and the other end extends to the through hole (K) of the dash panel (DP) of the vehicle body.
The refrigerant pipe (12H) is routed outside the air conditioning case (11), and the other end is connected to the outer surface of the blower case (45) and the dash panel (DP) of the vehicle body via a seal member (48) when mounted on the vehicle. It is characterized in that it is sandwiched by a pipe heat insulating protection member (122) by a cover member (47) that abuts and prevents communication between the engine room and the vehicle compartment.

  According to the first aspect of the present invention, the pipe holding hole (47b) formed by the outer surface of the blower case (45) and the cover member (47) is provided with a pipe heat insulating member that is attached to the pipe (121) without a gap. The protective member (122) is dimensioned to be compressed with an appropriate compression amount over the entire outer periphery, and the refrigerant pipe (12H) has an inexpensive structure that sandwiches and seals the pipe heat insulating protective member (122). The other end is held and fixed to the outer surface of the blower case (45), and a seal is formed between the blower case (45) and the cover member (47) without a gap. Thereby, the blower case (45) can also serve as a seal case, and an inexpensive structure can be obtained.

  Moreover, in invention of Claim 2, in the vehicle air conditioner of Claim 1, refrigerant | coolant piping (12H) is a fan unit (4), an air conditioning unit (10), and these connection parts (46). ) And is surrounded by the space (DS1) surrounded by. According to the second aspect of the present invention, the outer shape of the air conditioner is not increased by using the space (DS1) which is a dead space.

  Moreover, in invention of Claim 3, in the vehicle air conditioner of Claim 1 or Claim 2, the other end side clamping part of refrigerant | coolant piping (12H) is the upper and lower cases (45A) of an air blower unit (4). , 45B) and a step space (DS2) generated between the inside air / outlet port (5) and the inside / outside air switching unit (45C) that switches between the outside air inlet (6). Yes.

  According to the third aspect of the present invention, the outer shape of the air conditioner is not increased by using the step space (DS2) which is a dead space.

  According to a fourth aspect of the present invention, in the vehicle air conditioner according to any one of the first to third aspects, the inside / outside air switching portion (45C) is shaped as a cover member (47). It is characterized by being integrated. According to the fourth aspect of the present invention, it is possible to reduce the number of assembling steps and reduce the cost by reducing the number of parts.

In the invention according to claim 5, an air conditioning unit (10) including a cooling heat exchanger (12) built in an air conditioning case (11) disposed in the passenger compartment and forming an air flow path,
A blower unit (4) which is connected to a side of the air-conditioning unit (10) in the vehicle traveling direction and has a blower (9) built in a blower case (45) forming an air flow path;
A refrigerant pipe (12H) equipped with a pipe heat insulating protection member (122),
In the vehicle air conditioner, one end of the refrigerant pipe (12H) is connected to the cooling heat exchanger (12) and the other end extends to the through hole (K) of the dash panel (DP) of the vehicle body.
The refrigerant pipe (12H) is routed through the case (11, 45, 46), and the other end is sandwiched between the upper and lower cases (45A, 45B) of the blower unit (4) via the pipe heat insulating protection member (122). It is characterized by being.

  According to the fifth aspect of the present invention, the refrigerant pipe (12H) is routed through the case (11, 45, 46) so that the outer shape of the air conditioner is not increased. Further, since the pipe heat insulating protection member (122) only needs to be provided in the pipe holding hole (47b), the amount of use of the pipe heat insulating protective member (122) can be shortened to reduce the cost.

  Incidentally, the reference numerals in parentheses of the above means are examples showing the correspondence with the specific means described in the embodiments described later.

(First embodiment)
Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. FIG. 1 is a longitudinal sectional view showing a structural outline of a vehicle air conditioner according to an embodiment of the present invention, and FIG. 2 is a horizontal partial sectional view showing an attachment state of the vehicle air conditioner according to the first embodiment of the present invention. is there. 3 is a partial view of the vehicle air conditioner of FIG. 2 as viewed from the direction A in FIG. 2, FIG. 4 is a partial view of the vehicle air conditioner of FIG. 2 as viewed from the direction B in FIG. FIG. 3 is a partial view of the vehicle air conditioner of FIG. 2 as viewed from the direction C in FIG. 2. FIG. 6 is a trihedral view showing the shape of the cover member 47.

  First, a vehicle air conditioner will be described with reference to FIG. The ventilation system of the vehicle air conditioner according to the present embodiment is roughly divided into two parts: a blower unit 4 and an air conditioning unit 10. The blower unit 4 is arranged offset from the central part to the passenger seat side in the lower part of the instrument panel in the passenger compartment. On the other hand, the air conditioning unit 10 is arranged in the lower part of the instrument panel in the passenger compartment. It is arranged at the approximate center of the direction.

  The blower unit 4 is formed with an inside air intake port 5 for inhaling air inside the vehicle interior and an outside air intake port 6 for inhaling air outside the vehicle interior, and selectively opens and closes these air intake ports 5 and 6. An inside / outside air switching door 7 is provided. The inside / outside air switching door 7 is opened and closed by an actuator mechanism 8 such as a servo motor.

  A blower blower 9 comprising a centrifugal multi-blade (sirocco) fan 9 a and a blower motor 9 b for driving the fan is disposed at a downstream side portion of the suction inlet switching door 7. Air sucked from either of the ports 5 and 6 is blown toward the respective outlets 35 to 38 described later.

  The air conditioning unit 10 is of a type in which both an evaporator (cooling heat exchanger) 12 and a heater core (heating heat exchanger) 13 are integrally incorporated in one common air conditioning case 11. The air conditioning case 11 is made of a resin molded product having a certain degree of elasticity and excellent strength, such as polypropylene.

  The air-conditioning case 11 is specifically composed of a plurality of divided cases. The plurality of divided cases are accommodated with devices such as the heat exchangers 12 and 13 and doors described later, and then fastened with metal spring clips and screws. The air conditioning unit 10 is configured by being integrally coupled by the means. The air conditioning unit 10 is arranged in the form shown in FIG. 2 with respect to the longitudinal direction and the vertical direction of the vehicle. An air inlet 14 is formed on a side surface of the air-conditioning case 11 which is the frontmost part of the vehicle.

  Air-conditioned air blown from the above-described blower unit 4 flows into the air inlet 14. And the evaporator 12 is arrange | positioned in the site | part just after the air inlet 14 in the air-conditioning case 11. FIG. The evaporator 12 has a thin shape in the vehicle front-rear direction and is arranged in the vertical direction so as to cross the passage in the air conditioning case 11. Accordingly, the blown air from the air inlet 14 flows into the front surface of the evaporator 12 extending in the vehicle vertical direction.

  An evaporator (refrigerant evaporator) 12 is piped together with a compressor (refrigerant compressor) 1, a condenser (refrigerant condenser) 2, and an expansion valve 3 to constitute a refrigeration cycle R. The compressor 1 is connected to a vehicle engine (not shown) via an electromagnetic clutch 1a, and is ON / OFF controlled by connecting and disconnecting the electromagnetic clutch 1a. As is well known, the evaporator 12 absorbs the latent heat of evaporation of the refrigerant in the refrigeration cycle R from the air-conditioning air and cools the air-conditioning air.

  And the heater core 13 is arrange | positioned at predetermined intervals on the air flow downstream (vehicle rear side) of the evaporator 12. The heater core 13 is disposed on the lower side in the air conditioning case 11 so as to be inclined toward the rear side of the vehicle. As shown in FIG. 2, the width dimension of the evaporator 12 and the heater core 13 in the left-right direction of the vehicle is designed to be substantially the same as the width dimension of the air conditioning case 11.

  The heater core 13 reheats the cold air that has passed through the evaporator 12, and hot water (engine cooling water) flows through the heater core 13 and heats the air using this hot water as a heat source. In the air passage in the air-conditioning case 11, a front-seat cold air bypass passage 15 that bypasses the heater core 13 and flows air (cool air) is formed in an upper portion of the heater core 13.

  In addition, a flat front air mix door 16 is disposed between the heater core 13 and the evaporator 12. This front seat air mix door 16 adjusts the amount of air that passes through the heater core 13 and becomes warm air, and the amount of cool air that bypasses the heater core 13 through the front seat cold air bypass passage 15. The temperature of the air blown toward the front seat of the vehicle interior is adjusted by adjusting the air volume ratio of the cold and hot air.

  The front seat air mix door 16 is integrally coupled to a rotation shaft arranged in the horizontal direction (vehicle width direction), and is rotatable in the vehicle vertical direction around the rotation shaft. The rotating shaft is rotatably supported by the air conditioning case 11, and one end portion of the rotating shaft protrudes outside the air conditioning case 11. The actuator mechanism 17 uses a servo motor or the like via a link mechanism (not shown). The actuator mechanism 17 adjusts the rotational position of the front seat air mix door 16.

  On the other hand, in the air conditioning case 11, a wall surface 18 that extends in the vertical direction with a predetermined interval from the heater core 13 is formed integrally with the air conditioning case 11 at a portion of the heater core 13 on the air downstream side (vehicle rear side). Yes. The wall surface 18 forms a warm air passage 19 that extends up and down immediately after the heater core 13 (on the downstream side of the air), and the upper side of the warm air passage 19 is a front seat temperature for supplying warm air to the front seat side. A wind passage 19a is formed on the lower side, and a rear-seat warm air passage 30 for supplying warm air to the rear seat side.

  The previous front seat hot air passage 19a merges with the downstream side of the front seat cold air bypass passage 15 in the upper portion of the heater core 13 to form a front seat air mixing section 20 that mixes cold air and hot air. Yes. And in the upper surface part of the air-conditioning case 11, the defroster opening part 21 in which the air-conditioning air temperature-controlled by the front seat air mixing part 20 flows in the site | part near the vehicle front. The defroster opening 21 is connected to a defroster outlet 35 via a defroster duct 39, and blows wind from the defroster outlet 35 toward the inner surface of the vehicle front window glass.

  The defroster opening 21 is opened and closed by a flat plate-shaped defroster door (blow-out opening / closing means) 22. The defroster door 22 is rotated by a rotation shaft 23 disposed in the horizontal direction in the vicinity of the upper surface portion of the air conditioning case 11. The defroster door 22 switches between the defroster opening 21 and the communication port 24 to open and close. The communication port 24 serves as a passage for flowing the conditioned air from the air mixing unit 20 to the front seat face opening 25 and the front seat foot opening 26 described later.

  On the upper surface of the air conditioning case 11, a front seat face opening 25 is provided at a position on the rear side of the vehicle (close to the occupant) with respect to the defroster opening 21, and the front seat face opening 25 is used for the front seat. A face duct 40 is connected to a front seat face air outlet 36 disposed on the upper side of the instrument panel, and wind is blown from the front seat face air outlet 36 toward the head of the front seat passenger in the passenger compartment.

  Next, in the air conditioning case 11, a front seat foot opening 26 is provided below the front seat face opening 25. The front seat foot openings 26 are opened on the left and right side surfaces of the air conditioning case 11, and the front seat driver seat side via front seat foot ducts 41 (represented as one for convenience) on the left and right sides. The front seat foot outlet 37 is connected to the passenger's foot on the passenger seat side, and the wind blows out from the front seat foot outlet 37 to the driver's seat on the front seat and the passenger's foot on the passenger seat side.

  A flat face / foot door (air outlet opening / closing means) 27 is disposed between the openings 25 and 26 so as to be rotatable by a rotating shaft 28. The face / foot door 27 allows the front seat face opening 25 to be rotated. And the entrance 26a of the front seat foot opening 26 are switched open and closed.

  Here, the defroster door 22 and the face / foot door 27 are front-seat blow mode switching means, and the rotary shafts 23 and 28 are blow-off mode switch actuator mechanisms such as a servo motor via a link mechanism (not shown). The doors 22 and 27 are operated in conjunction with each other by the actuator mechanism 43.

  Next, a cool air bypass passage 29 for the rear seat that allows the cool air from the outlet of the evaporator 12 to pass through the heater core 13 is formed in the lower part of the heater core 13 in the air conditioning case 11. A flat rear seat air mix door 31 is disposed at the junction of the rear seat hot air passage 30 and the rear seat cold air bypass passage 29 so as to be rotatable by a rotation shaft.

  The rear seat air mix door 31 adjusts the air volume ratio between the hot air from the rear seat hot air passage 30 and the cold air from the rear seat cold air bypass passage 29 to adjust the temperature of the air blown to the rear seat side of the vehicle interior. To make adjustments. The warm air from the rear-seat warm air passage 30 and the cool air from the rear-seat cold air bypass passage 29 are mixed in the rear-seat air mixing unit 33 to become air of a desired temperature.

  The rotating shaft of the rear seat air mix door 31 is disposed in the horizontal direction (vehicle width direction), and one end thereof projects outside the air-conditioning case 11 and is independently connected using a servo motor or the like via a link mechanism (not shown). The actuator mechanism 32 is connected to adjust the rotational position of the rear seat air mix door 35.

  The air of the desired temperature mixed in the rear seat air mixing section 33 flows toward the downstream side (rear side of the vehicle) and passes through the rear seat outlet opening 34 and the rear seat duct 42 to the rear seat face. Or it blows out from the blower outlet 38 of the foot toward the head side or the foot side of the rear seat occupant.

  The air-conditioning control device 44 is configured by a microcomputer or the like, and is activated when power is supplied from a vehicle-mounted battery when a vehicle key switch is turned on. Operation signals from the front seat side air conditioning operation panel installed on the instrument panel and the rear seat side air conditioning operation panel installed on the rear seat side in the vehicle interior are input to the compressor 1, the blower unit 4 and the air conditioning unit 10. The various air conditioners to be controlled are controlled in accordance with a preset program.

  The vehicle air conditioner 10 according to the present embodiment controls the operation positions (rotation positions) of the front seat air mix door 16 and the rear seat air mix door 31 to thereby blow out the front seat side and the rear seat side. Air temperature can be controlled independently. Further, by selecting the operation positions of the defroster door 22 and the face / foot door 27 for switching the blowing mode, the blowing modes such as the face blowing mode, the bi-level blowing mode, the foot blowing mode, the foot differential blowing mode, and the defroster blowing mode are selected. Can be set. The vehicle air conditioner 10 is automatically controlled by an air conditioning control device (control means) 44.

  Next, FIG. 2 is a horizontal partial cross-sectional view showing a state where the vehicle air conditioner is attached to the vehicle. Note that the inside / outside air switching box 45C and the cover member 47, which will be described later, are omitted for the sake of description with reference to FIGS. An engine (E / G) is installed in the engine room, and an air conditioning unit 10 is attached to the center of the vehicle width direction on the front side of the passenger compartment via the engine and the dash panel DP. The blower unit 4 is attached with an offset toward the passenger seat side, and is connected to the side of the air conditioning unit 10.

  In the present embodiment, a connection duct 46 is configured between the air conditioning unit 10 and the blower unit 4 as a case of a connection portion. And the refrigerant | coolant piping 12H connected to the side surface of the evaporator 12 is routed outside the air-conditioning case 11, and the front-end | tip (other end) side is formed in the vehicle front side vicinity of the air blower unit 4 avoiding the engine in an engine room. The dash panel DP is extended to the through hole K.

  And in this embodiment, the expansion valve 3 is connected to the engine room side end of the refrigerant | coolant piping 12H, and the piping H is connected from the engine room side to the expansion valve 3 arrange | positioned at the back of this through-hole part K. It is like that. The refrigerant pipe 12H has a pipe insulator (pipe heat insulation protection member) 122 mounted on the outer periphery of an aluminum high / low pressure pipe 121 (see FIG. 3), and block joints 123 (see FIG. 4) are caulked at both ends thereof. It is.

  The pipe insulator 122 is made of a material such as ethylene / propylene rubber (EPDM), and a long foamed tube having a circular cross section is formed by continuous extrusion molding, and the tube is cut to a desired length. A lubricant or air is used to cover the pipe 121 from one end using the elongation of the material.

  And as the principal part of this invention, the front end side of the refrigerant | coolant piping 12H is attached to the piping 121 by the outer surface of the air blower case 45, more specifically, the upper surface (refer FIG. 3) of air blower upper case 47A, and the cover member 47. The pipe insulator 122 is sandwiched and held and fixed (see FIG. 4).

  FIG. 6 is a trihedral view showing the shape of the cover member 47. The cover member 47 is in contact with the dash panel DP of the vehicle body via a dash seal packing (seal member) 48 when mounted on the vehicle to prevent communication between the engine room and the vehicle compartment. A space 47a in which the block joint 123 and the expansion valve 3 are inserted, a pipe holding hole 47b for holding the pipe together with the pipe insulator 122, a fastening part 47c for fastening the blower case 45, a flange part 47d for attaching the dash seal packing 48, and the like. Is formed.

  Although not shown, a shape similar to that of the cover member 47 is also formed on the upper surface of the blower upper case 47A. Further, a fitting groove (not shown) is formed in the contact portion between the blower upper case 45A and the cover member 47 to form a labyrinth structure, and there is no gap between the engine room and the vehicle compartment in the contact portion. It is like that.

  And in this embodiment, the refrigerant | coolant piping 12H is managed using space DS1 enclosed with the air blower unit 4, the air conditioning unit 10, and the connection duct 46 (refer FIG. 2). In addition, a step formed between the upper and lower cases 45A and 45B of the blower unit 4 and an inside / outside air switching box (inside / outside air switching unit) 45C for switching between the inside air inlet 5 and the outside air inlet 6 is provided at the front end side of the refrigerant pipe 12H. It arrange | positions using space DS2 (refer FIG. 5).

  Further, the hot water pipe 131 connected to the side surface of the heater core 13 is routed outside the air conditioning case 11, and the tip side extends to the through hole K of the dash panel DP formed avoiding the engine in the engine room. A hot water pipe (not shown) is connected to the front end side from the engine room side. 2 in FIG. 2 is a dash seal packing that prevents communication between the engine room and the vehicle compartment.

  Next, features and effects of this embodiment will be described. First, the refrigerant pipe 12H is routed outside the air conditioning case 11, and the tip side abuts against the outer surface of the blower case 45 and the dash panel DP of the vehicle body via the dash seal packing 48 when mounted on the vehicle. The pipe member 122 is sandwiched by a cover member 47 that prevents communication with the chamber.

  According to this, the pipe holding hole 47b formed by the outer surface of the blower case 45 and the cover member 47 allows the pipe insulator 122 mounted on the pipe 121 without a gap to be compressed with an appropriate amount of compression over the entire circumference. Due to the low-cost structure in which the pipe insulator 122 is sandwiched and sealed, the front end side of the refrigerant pipe 12H is held and fixed to the outer surface of the blower case 45 without gaps between the blower case 45 and the cover member 47. A seal is made. Thereby, the blower case 45 can also serve as a seal case, and an inexpensive structure can be obtained.

  Further, the refrigerant pipe 12H is routed using a space DS1 surrounded by the blower unit 4, the air conditioning unit 10, and the connection portions 46. According to this, the outer shape of the air conditioner is not increased by using the space DS1 that is a dead space.

  Further, the front end side clamping portion of the refrigerant pipe 12H uses a step space DS2 generated between the upper and lower cases 45A and 45B of the blower unit 4 and the inside / outside air switching box 45C for switching between the inside air suction port 5 and the outside air suction port 6. It is arranged. According to this, the outer shape of the air conditioner is not increased by using the step space DS2 which is a dead space.

(Second Embodiment)
FIG. 7 is a horizontal partial cross-sectional view showing a state in which the vehicle air conditioner according to the second embodiment of the present invention is attached to the vehicle, and FIG. 8 is a view of the vehicle air conditioner of FIG. 7 as viewed from the direction D in FIG. FIG. As a feature different from the first embodiment described above, the refrigerant pipe 12H is routed in the cases 11, 45, and 46, and the front end side is sandwiched between the upper and lower cases 45A and 45B of the blower unit 4 via the pipe insulator 122. Yes.

  According to this, the refrigerant pipe 12H is routed through the cases 11, 45, and 46 so that the outer shape of the air conditioner is not increased. Further, since it is possible to prevent the condensed water of the pipe from falling into the vehicle interior, the pipe insulator 122 only needs to be provided in the pipe holding hole portion, and the amount of use of the pipe insulator 122 can be shortened to reduce the cost. .

(Other embodiments)
In the first embodiment, the cover member 47 is used. However, the shape of the cover member 47 may be integrated with the inside / outside air switching box 45C. According to this, it is possible to reduce assembly man-hours and cost by reducing the number of parts.

  In addition, this invention is not limited to embodiment mentioned above, The connection duct 47 does not necessarily need to be comprised, and the connection part of the air conditioning unit 10 and the air blower unit 4 is the air conditioning case 11 or the air blower case 45. It may be united. Further, the expansion valve 3 does not necessarily have to be on the engine room side of the refrigerant pipe 12H, and may be configured to be provided between the refrigerant pipe 12H and the evaporator 12 or in the middle of the refrigerant pipe 12H.

It is a longitudinal section showing the outline of the structure of the air-conditioner for vehicles concerning the embodiment of the present invention. It is a horizontal fragmentary sectional view which shows the attachment state of the vehicle air conditioner in 1st Embodiment of this invention. FIG. 3 is a partial view of the vehicle air conditioner of FIG. 2 as viewed from the direction A in FIG. 2. FIG. 3 is a partial view of the vehicle air conditioner of FIG. 2 as viewed from a direction B in FIG. 2. FIG. 3 is a partial view of the vehicle air conditioner of FIG. 2 as viewed from the direction C in FIG. 2. FIG. 6 is a three-side view showing the shape of a cover member 47. It is a horizontal fragmentary sectional view which shows the attachment state to the vehicle of the vehicle air conditioner in 2nd Embodiment of this invention. It is the fragmentary view which looked at the vehicle air conditioner of FIG. 7 from the D direction in FIG.

Explanation of symbols

4 ... Blower unit 5 ... Inside air inlet 6 ... Outside air inlet 9 ... Blower 10 ... Air conditioning unit 11 ... Air conditioning case 12 ... Evaporator (cooling heat exchanger)
12H ... Refrigerant piping 45 ... Blower case 45A ... Blower upper case 45B ... Blower lower case 45C ... Inside / outside air switching box (inside / outside air switching section)
46 ... Connection duct (connection part, case)
47 ... Cover member 48 ... Dash seal packing (seal member)
122 ... Pipe insulator (pipe insulation protection member)
DP ... Dash panel DS1 ... Dead space
DS2 ... Dead space (step space)
K ... Through hole

Claims (5)

An air conditioning unit (10) which is disposed in the passenger compartment and has a cooling heat exchanger (12) built in an air conditioning case (11) forming an air flow path;
A blower unit (4) which is connected to the side of the vehicle traveling direction of the air conditioning unit (10) and has a blower (9) built in a blower case (45) forming the air flow path;
A refrigerant pipe (12H) equipped with a pipe heat insulating protection member (122),
In the vehicle air conditioner, one end of the refrigerant pipe (12H) is connected to the cooling heat exchanger (12) and the other end extends to a through hole (K) of a dash panel (DP) of a vehicle body.
The refrigerant pipe (12H) is routed outside the air conditioning case (11), and the other end is connected to the outer surface of the blower case (45) and the dash panel of the vehicle body via a seal member (48) when mounted on the vehicle. A vehicle air conditioner characterized in that the vehicle air-conditioning apparatus is sandwiched by the pipe heat insulating protection member (122) by a cover member (47) that contacts the (DP) and prevents communication between the engine room and the vehicle compartment.   The refrigerant pipe (12H) is routed using the space (DS1) surrounded by the blower unit (4), the air conditioning unit (10), and the connection portion (46). The vehicle air conditioner according to claim 1, wherein   The other end side clamping portion of the refrigerant pipe (12H) switches between the upper and lower cases (45A, 45B) of the blower unit (4), the inside air inlet (5), and the outside air inlet (6). The vehicle air conditioner according to claim 1 or 2, wherein the air conditioner is disposed using a step space (DS2) generated between the first portion and the second portion (45C).   The vehicle air conditioner according to any one of claims 1 to 3, wherein the inside / outside air switching portion (45C) is integrally provided with a shape as the cover member (47). An air conditioning unit (10) which is disposed in the passenger compartment and has a cooling heat exchanger (12) built in an air conditioning case (11) forming an air flow path;
A blower unit (4) which is connected to the side of the vehicle traveling direction of the air conditioning unit (10) and has a blower (9) built in a blower case (45) forming the air flow path;
A refrigerant pipe (12H) equipped with a pipe heat insulating protection member (122),
In the vehicle air conditioner, one end of the refrigerant pipe (12H) is connected to the cooling heat exchanger (12) and the other end extends to a through hole (K) of a dash panel (DP) of a vehicle body.
The refrigerant pipe (12H) is routed through the case (11, 45, 46), and the other end is the upper and lower cases (45A, 45B) of the blower unit (4). The vehicle air-conditioning apparatus is characterized by being sandwiched between the two.

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