JP2001253230A - Thermal shielding structure of condenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent hot air of an engine from turning around in a condenser or a receiver tank side, and to reduce the number of parts and to lessen constraints by a vehicle structure by surely sealing the condenser and the receiver tank without using urethane foam packing or a vehicle body member in a terminal shielding structure of the condenser. SOLUTION: A receiver side extending part extended so as to overlap on a striker member is formed on a receiver thermal shielding plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat shielding structure of a condenser, and more particularly to a heat shielding structure of a condenser for shielding a condenser of an air conditioner disposed behind a bumper at a front portion of a vehicle.

[0002]

2. Description of the Related Art In an air conditioner for a vehicle, a compressor (compressor) is driven by driving an engine, and gas which has been compressed by the compressor and has become high temperature is cooled and liquefied by a condenser (condenser). This liquefied gas is sent from a receiver tank (liquid receiver) to an evaporator (evaporator) through a sight glass and an expansion valve (expansion valve), and the evaporator removes heat in the vehicle interior when the gas is vaporized. Some cool and cool, and then send that gas back to the compressor.

In this case, as shown in FIGS. 12 and 13, a bumper 102 and a bumper member 104 are provided substantially in parallel with the bumper 102 at the front of the vehicle.
2 and a condenser tank 106 and a receiver tank 108 are provided behind the bumper member 104, and hot air from an engine (not shown) provided behind the condenser 106
Sealing is performed using a urethane foam packing 110 between the vehicle body so as not to go around. That is, in a vehicle having the bumper member 104, the rib 112 projects rearward from the bumper 102, and the rib 11
2 has a bumper member insertion hole 114 of the bumper member 104.
Is formed by notching.

[0004] Such a structure of the front portion of the vehicle is disclosed in, for example, Japanese Patent Application Laid-Open No. 7-125545 and Japanese Utility Model Laid-Open No. 7-41.
No. 33 discloses this. JP-A-7-125545
In the structure disclosed in Japanese Patent Laid-Open Publication No. H10-260, a metal capacitor member is provided on the upper part of a capacitor body, a part of the capacitor member is extended upward to form a heat shield plate, and the heat shield plate is connected to the capacitor body and the vehicle body member. Are arranged in a gap formed between them. In Japanese Unexamined Utility Model Publication No. 7-4133, a fin portion of a front grill located in front of a radiator is extended to the rear of the vehicle until the fin portion is substantially the same as and overlaps the tip end position of the seal board.

[0005]

However, conventionally, in the heat shielding structure of a capacitor, in the case of a vehicle having a bumper member, a rib protrudes rearward from the bumper, and the rib is formed by notching a bumper member insertion hole of the bumper member. Since it is formed, it is difficult to completely seal it, and there is a disadvantage that it is restricted by the vehicle body structure. In addition, there is a problem that the attaching position of the urethane foam packing is not accurate, or there is a fear of peeling off, so that the attaching operation is troublesome and the assembling operation is reduced. Further, since the urethane foam packing is exposed to a high temperature, using a heat-resistant urethane foam packing has a disadvantage of increasing the cost.

[0006]

Therefore, in order to eliminate the above-mentioned inconvenience, a striker member is erected in the center of the front part of a vehicle, and the striker member is provided in front of an engine mounted on the vehicle. A condenser of an air conditioner is provided on one side, a receiver tank of the air conditioner is provided on a striker member side of the condenser, and a receiver heat shield plate is provided behind the receiver tank. The heat shield plate is formed with a receiver-side extension that extends so as to overlap the striker member.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the present invention, since a receiver-side heat shield plate is formed with a receiver-side extension portion which is extended so as to overlap a striker member, a capacitor or a body can be used without using urethane foam packing or a vehicle body member. Securely seal the receiver tank, prevent hot air from the engine from flowing to the condenser and the receiver tank side, reduce the number of parts, make it less susceptible to restrictions due to the body structure, and reduce the cost. Can be.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; 1 to 6 show a first embodiment of the present invention. 1 to 6, 2 is a vehicle,
4 is an engine, 6 is a front floor member, 8 is a front upper member, 10 and 10 are side members, 12 is a bumper member, 14 is a plastic bumper at the front of the vehicle 2, and 16 is a manifold cover attached to the engine 2. It is. This manifold cover 16 is used for the engine 4
To prevent radiant heat from the exhaust manifold (not shown).

The front floor member 6 is provided with an upright striker member 18 at the center thereof. As shown in FIG. 3, the striker member 18 has a U-shaped cross section and includes a central portion 20, one side portion 22, and another side portion 24.

[0010] The front floor member 6 has a structure shown in FIG.
As shown in FIG. 3, a radiator 26 is erected in front of the engine 4 on one side of the striker member 18 (left side of the vehicle), and a condenser 28 of the air conditioner is arranged in front of the radiator 26 and substantially in parallel with the radiator 26. Is erected. The radiator 26 is provided with legs 30 at a lower portion, and is attached to the front floor member 6 via the legs 30. The upper portion is attached to the front upper member 8 by radiator upper mounting brackets 32. It is attached. The condenser 28 has a lower part attached to the front floor member 6 by condenser lower fixtures 34 and an upper part attached to an upper portion of the radiator 26 by condenser upper fixtures 36. Radiator upper mounting bracket 32.3
2 and the capacitor upper fittings 36 are fastened together,
It is fixed to the front upper member 8. The radiator cap portion 38 of the radiator 26 is disposed close to the radiator upper mounting bracket 32 on the side member 10 side.

Further, a receiver heat shield plate 42 is attached to the condenser 28 via a receiver plate bracket 44 so as to cover the receiver tank 40 of the air conditioner and the rear and side portions of the condenser 28. As shown in FIG. 3, the receiver heat shield plate 42 includes a rear cover 46 that covers the receiver tank 40 and the side portion of the capacitor 28 from the rear side, and a side cover that covers the receiver tank 40 from the center side. And a portion 48. In addition, the receiver heat shield plate 4
As shown in FIG. 1, the pipe 2 has a pipe cutout 52 that is partially cut away so as to avoid the pipe 50 that communicates with the connector 50A provided above the capacitor 28. The receiver heat shield plate 42 has an upper end attached to the upper end of the capacitor 28 near the connector portion 50A above the notch 52 for the pipe, and a lower end attached to the lower portion of the capacitor 28 via the receiver plate bracket 44. It is attached to the tool 34.

On the other side (right side of the vehicle) of the striker member 18 opposite to the condenser 28 with the striker member 18 interposed therebetween, as shown in FIG. 2, a bumper heat shield plate 54 stands upright in front of the manifold cover 16. Have been. The bumper member 12 is provided in front of the bumper heat shield plate 54, and the bumper 14 is provided in front of the bumper member 12. As shown in FIGS. 1 and 4, the bumper heat shield plate 54, together with the connected striker member 18 and the receiver heat shield plate 40, shields the radiant heat of the engine 4 to the bumper 14 side. A main body 56 is formed so as to protrude toward the bumper 14, and a fixing portion 58 is formed so that a substantially central portion protrudes toward the engine room (rear side). The fixing portion 58 is used for the striker member 18.
With a bumper plate fixture 60. As shown in FIGS. 1 and 4, an upper notch 62 is formed in a substantially central portion above the main body 56 of the bumper heat shield plate 54.
Upper mounting portions 64 are formed on both sides of the upper cutout 62. The upper attachment portions 64 are attached to the front upper member 8. A side notch 66 extending from substantially the center to the upper portion is formed on the side member 10 side of the main body 56 of the bumper heat shield plate 54, and a side cutout is formed continuously below the side notch 66. Part mounting part 6
8 are formed. This side attachment portion 68 is attached to the side member 10.

The side cover 48 of the receiver heat shield plate 42 includes
As shown in FIG. 3, the receiver-side extension 72 is formed by extending along the bumper 14 at the center of the vehicle 2 so as to overlap the one-side bent end 70 of the side 22 of the striker member 18 at the front. I do. Since the receiver-side extension 72 has the one-side bent end 70 located substantially parallel to the bumper 14,
Similarly, it is located in front of the vehicle 2 substantially parallel to the bumper 14 and separated from the one-side bent end 70 by the distance L1.

The fixed portion 58 of the bumper heat shield 54 extends obliquely along one side 22 of the striker member 18 so that the end 74 overlaps the receiver-side extension 72 in front of the vehicle 2. In addition, a bumper side extension 76 is formed. The end portion 74 of the bumper-side extension 76 is similarly positioned substantially parallel to the bumper 14 and located in parallel with the receiver-side extension 72 because the receiver-side extension 72 is located substantially parallel to the bumper 14. The vehicle 2 is disposed in front of the vehicle 2 with a distance L2 therebetween. Thereby, the striker member 18
The maze structure 78 is formed by the one side 22, the receiver-side extension 72, and the end 74 of the bumper-side extension 76.

Next, the operation of the first embodiment will be described.

Since the receiver heat shield plate 42 is extended so as to overlap with the strike member 18 at the center of the front portion of the vehicle 2, the heat shield between the receiver tank 40 and the condenser 28 is made using the receiver heat shield plate 42. Therefore, the members such as urethane foam packing and the vehicle body member are not required. Therefore, even in the vehicle 2 having the bumper member 12, the urethane foam packing is not cut off in order to avoid the bumper member 12. There is no danger that the sealing performance will be reduced at the chipped portion, the heat can be shielded from the radiant heat of the engine 4, and the hot air of the engine 4 is prevented from flowing to the condenser 28 and the receiver tank 40 side. Prevent score increase,
It is less likely to be restricted by the vehicle body structure, and can be inexpensive.

Since the bumper side extension 76 and the receiver side extension 72 are disposed so as to overlap the striker member 18, the bumper side extension 76 and the receiver side extension 72 are arranged.
The striker member 18 and the striker member 18 form a maze structure 78, so that heat from the radiant heat of the engine 4 can be more reliably shielded.

Since the bumper-side extension 76 and the receiver-side extension 72 are arranged so as to overlap in front of the striker member 18, the striker member 18 is held by the bumper-side extension 76 and the receiver-side extension 72. It can hide and improve the beauty.

FIG. 7 shows a second embodiment of the present invention.

In the following embodiment, portions having the same functions as those in the above-described first embodiment will be described with the same reference numerals.

The features of the second embodiment are as follows. That is, the radiator 26 is disposed behind the condenser 28, and a receiver cooling air passage 82 having a required gap S is formed between the receiver tank 40 and the receiver heat shield plate 42.

According to the structure of the second embodiment, since the air is guided from the front toward the radiator 26 behind the condenser 28 by the receiver cooling air passage 82, the receiver tank 40 can be actively cooled. it can.

In the second embodiment, as shown in FIG. 8, when the clearance between the receiver tank 40 and the receiver heat shield plate 42 is small and a required passage cross-sectional area cannot be ensured, the receiver shield is required. The heat plate 42 may be formed with a plurality of passage recesses 84 so as to secure a required passage cross-sectional area.

FIG. 9 shows a third embodiment of the present invention.

The features of the third embodiment are as follows. That is, an engagement notch 86 as an engagement notch is provided at an upper portion of the receiver heat shield plate 42, and the vehicle 2
A bumper rib 88 is provided on the rear surface of the bumper 14, and a rear portion of the bumper rib 88 is provided so as to engage with the engaging portion 86. A hole 90 for a pipe was formed in the bumper rib 88.

According to the structure of the third embodiment, the bumper 1
By using a bumper rib 88 provided on the rear surface of the engine 4, heat can be shielded from radiant heat of the engine 4 by the bumper rib 88 and the receiver heat shield plate 42. Therefore, the heat shield from the radiant heat of the engine 4 can be reliably performed without lowering the strength of the bumper 14.

In the third embodiment, FIG.
The bumper member 12 is located below the bumper rib 88 as shown in FIG.
It is also possible to provide a heat shielding structure below the bumper rib 88 in the same manner as in the first embodiment described above.

FIG. 11 shows a special configuration of the present invention, and shows a fourth embodiment.

The features of the fourth embodiment are as follows. That is, the receiver-side extension 72 of the receiver heat shield plate 42 is further extended so as to overlap the one side 22 of the striker member 18 from the center side, and the striker member 1
8, a hot air passage 92 is formed with the one side portion 22, a wind guide passage 94 is formed with the bumper side extension 76, and a tip end of the bumper side extension 76. The striker member 78 is formed so as to be curved away from the receiver extension portion 72, and a return hole 96 is formed in a concave central portion of one side portion 22 of the striker member 18.

According to the configuration of the fourth embodiment, hot air (indicated by a dashed line) from the engine 4 side is guided from the hot air side passage 92 to the recessed central portion of the one side 22 of the striker member 18, and When the air is guided from the wind guide passage 94, the hot air is returned to the engine 4 from the return hole 96 together with the air, and the hot air can be effectively prevented from flowing to the condenser 28 side.

In the present invention, the receiver heat shield plate has a double structure, in which air is circulated, or the inside thereof is sealed to make a vacuum state, thereby achieving heat insulation of the receiver heat shield plate. It is also possible to improve the heat shielding effect. Moreover, it is also possible to improve the heat shielding effect by forming the receiver tank as a double structure.

[0032]

As is apparent from the above detailed description, according to the present invention, the receiver heat shield plate is formed with the receiver-side extension portion that extends so as to overlap the striker member, so that the urethane foam packing and the vehicle body member are formed. Without using a seal, it securely seals the condenser and receiver tank, prevents the hot air of the engine from flowing to the condenser and receiver tank side, reduces the number of parts, and is less susceptible to restrictions due to the body structure And it can be inexpensive.

[Brief description of the drawings]

FIG. 1 is a perspective view of a heat shielding structure.

FIG. 2 is a sectional view taken along arrow 2-2 in FIG.

FIG. 3 is a plan view showing an arrangement state of each heat shield plate.

FIG. 4 is a schematic perspective view of a front portion of the vehicle.

FIG. 5 is a front view of a front portion of the vehicle.

FIG. 6 is a plan view of a front portion of the vehicle.

FIG. 7 is a plan view of a heat shielding structure according to a second embodiment.

FIG. 8 is a modified example of the second embodiment, and is a cross-sectional view of a heat shielding structure.

FIG. 9 is a perspective view of a heat shielding structure according to a third embodiment.

FIG. 10 is a modified example of the third embodiment, and is a cross-sectional view of a heat shielding structure.

FIG. 11 is a sectional view of a heat shielding structure according to a fourth embodiment.

FIG. 12 is a perspective view of a conventional heat shielding structure.

FIG. 13 is a sectional view of a conventional heat shielding structure.

[Explanation of symbols]

 2 vehicle 4 engine 6 front floor member 8 front upper member 10 side member 12 bumper member 14 bumper 18 striker member 28 condenser 40 receiver tank 42 receiver heat shield plate 54 bumper heat shield plate 72 receiver extension 76 bumper extension 78 maze structure

Claims (4)

[Claims] 1. A striker member is erected in the front center of a vehicle, and a condenser of an air conditioner is provided on one side of the striker member in front of an engine mounted on the vehicle. In the heat shield structure of the condenser provided with the receiver tank of the air conditioner, a receiver heat shield plate provided behind the receiver tank,
A heat-shielding structure for a capacitor, wherein the receiver heat-shielding plate has a receiver-side extension that extends so as to overlap the striker member. 2. The condenser according to claim 1, wherein a radiator is provided behind the condenser, and a receiver cooling air passage is formed between the receiver tank and the receiver heat shield plate. Heat shielding structure. 3. A bumper heat shield is disposed on the other side of the striker member opposite to the capacitor, and the bumper heat shield is provided on the receiver-side extension of the receiver heat shield. 2. The heat shielding structure for a capacitor according to claim 1, wherein an overlapping extension on the bumper side is formed, and the extension on the bumper side and the extension on the receiver side are arranged so as to overlap in front of the striker member. . 4. An engagement portion is provided on the receiver heat shield plate, a bumper rib is provided on a rear surface of the bumper of the vehicle, and a rear portion of the bumper rib is provided in engagement with the engagement portion. A heat shielding structure for a capacitor according to claim 1.