JPH07156644A - Air conditioner for vehicle - Google Patents

Abstract

PURPOSE:To attain both seal performance and tightening force by interposing the second packing between a lower part in a position of arranging a heavy object of an air conditioner main unit and a roof while forming seal packing into double structural packing. CONSTITUTION:Hard packing 7 brought into contact with the internal periphery between an air conditioner main unit 1 in an upper side of an opening part 2a and a ceiling 2 and packing 8 brought into contact with the periphery of this hard packing and with the periphery between the air conditioner main unit 1 and the ceiling 2 to be higher than the hard packing 7 are provided. Further, soft packing 11, 12 of height higher than the hard packing 7 is provided in a clearance with the ceiling 2 in a part overhung by the air conditioner main unit 1. Accordingly, sufficient tightening force of a bolt 4 is provided mainly by the hard packing 7, to reinforce fixation, and waterproofing can be ensured by the soft packing 8, 11, 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for a vehicle such as a recreational vehicle.

[0002]

2. Description of the Related Art As shown in FIG. 4, a conventional air conditioner for a vehicle such as a recreational vehicle such as a camper is
Although it is installed on the ceiling (roof) of the passenger compartment, the air conditioner body 1
Is generally arranged on the roof, the opening 2a is provided in the ceiling 2 of the vehicle compartment, and only the air outlet 3 is attached on the indoor side so that the vehicle interior can be widely used. To fix the air conditioner to the ceiling 2, the air conditioner body 1 on the roof and the air outlet 3 in the room
Are connected to each other with bolts 4 and the ceiling 2 is sandwiched by a frame 6 inside and packing 5 on the outside.
Although a heavy load such as a compressor, a blower, and a heat exchanger is built in the air-conditioner main body 1 on the roof, a packing 5 that withstands vibration and keeps waterproofness is used, and a predetermined bolt tightening force is applied. Need to be given.

For this reason, it is necessary to select an appropriate type and hardness of the packing 5, and if it is too soft, the sealing property for waterproofing is good, but it cannot withstand vibration due to insufficient tightening force. If it is hard, the tightening force will be good, but the sealing property will be poor. Further, since the lower part of the heavy object such as the blower or the compressor in the air conditioner body 1 may have a local excessive surface pressure, which may damage the roof, the packing 5a may be attached as shown in the figure. One row is inserted in the depth direction.

In consideration of waterproofing, the ceiling 2 is not provided with a bolt hole, and the bolt 4 is configured to pass through the opening 2a as shown in the drawing.

[0005]

The above-mentioned conventional vehicle air conditioner has the following problems to be solved.

That is, in the conventional vehicle air conditioner, as described above, since the packing made of one kind of material is used for the packings 5, 5a, etc., if the material is too soft, the sealing property is improved, but the tightening force is insufficient to cause vibration. If it is too hard, a sufficient tightening force can be obtained, but there is a problem that the adaptability to the abutting member is lacking and the sealing property is apt to occur.

Further, a portion corresponding to about half the length of the air conditioner body 1 having a weight of about 50 kg is usually diverted to the cantilevered overhanging portion of the air conditioner body, and a compressor or the like. Therefore, there is also a problem that the packing 5a is likely to be tilted or the like due to excessive surface pressure or excessive pressing amount.

In order to solve the above problems, it is an object of the present invention to provide an air conditioning system for a vehicle which also uses packings of hard and soft type 2 having different heights.

[0009]

As a means for solving the above problems, the present invention is to provide a vehicle air conditioner described in the following (1) to (4).

(1). The air conditioner body is installed on the roof corresponding to the opening provided in the ceiling of the vehicle compartment with the seal packing arranged around the opening, and is tightened with bolts and blown into the vehicle interior. In a vehicle air conditioner having an outlet, the seal packing is a double-structure packing, and a second packing is interposed between a lower portion of a position where a heavy load of the air conditioner body is arranged and the roof. A vehicle air conditioner characterized by the following.

(2). The vehicle air conditioner according to (1) above, wherein the dual structure packing has one of an inner peripheral side and an outer peripheral side made of a soft material and the other made of a hard material.

(3). The vehicle air conditioner according to (1) above, wherein the second packing is a soft material packing.

(4). The vehicle air conditioner according to (2) above, wherein the soft material packing has a higher dimension in the height direction than the hard material packing.

[0014]

Since the present invention is constructed as described above, it has the following actions.

(1). In the configuration of (1) above, the seal packing at the opening of the ceiling of the vehicle compartment has a double structure, and is provided between the vehicle roof and the portion below the heavy object placement position of the air conditioner body. In order to allow the second packing to intervene, for example, one of the double structures has a high-height, soft packing,
If the other is a low-height, hard packing, and the second packing is a plurality of or a wide width, for example, the same material and the same height as the soft packing, a sufficient bolt tightening force can be obtained by the hard packing. Since the amount of bending due to the tightening force is small, the air conditioner body does not tilt.

Further, since the high-height, soft packing flexes sufficiently and adapts well to the curve of the abutting member, it has a high waterproof property (sealing property).

The second packing flexes sufficiently to generate a uniform surface pressure over a wide area, which provides vibration resistance and helps prevent tilting of the air conditioner body.

(2). In the structure of (2) above, one of the inner and outer peripheral sides of the double structure packing of the above structure (1) is made of a soft material, and the other is made of a hard material. If the hard material packing has a low profile, the hard material packing with small deflection can provide sufficient bolt tightening force, and at the same time, the conformability of the soft material packing with large deflection can sufficiently fill the unevenness of the gap with the abutting member. Therefore, high waterproofness can be obtained.

(3). In the configuration of (3) above, since the second packing of the configuration of (1) is made of a soft material, if a plurality of soft material packings are used as the second packing, due to its flexibility, The surface pressure against a large load (weight) can be made uniform, and proper supporting strength that does not damage the roof of the vehicle can be obtained, and at the same time vibration resistance is improved.

(4). In the structure of (4) above, since the height of the soft material packing of the double structure packing of the above structure (2) is made higher than that of the hard material packing, when the air conditioner main body is fastened with bolts, the hard material packing is The soft material packing has a larger amount of flexure, and due to its adaptability, the contact member, that is, the non-uniformity of the mutual gap due to the curves of the air conditioner body rear surface and the vehicle roof, etc. is filled well, and high waterproofness is achieved. Is obtained.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. The same components as those in the conventional example are designated by the same reference numerals,
The description is omitted except when necessary. 1 is a side sectional view of the present embodiment, FIG. 2 is a perspective view of the hard packing 7 and the soft packing 8 of FIG. 1, and FIG. 3 is a hard packing 7 and soft packings 8 and 11 by tightening bolts 4 from the state of FIG. , 12 is a side sectional view schematically showing a compressed state.

In these figures, especially in FIG. 1, reference numeral 7 is made of hard rubber, which is in contact with the inner periphery between the air conditioner body 1 and the ceiling 2 above the opening 2a, and is higher than the soft packing 8. Of low hardness is made of soft rubber which is in contact with the outer circumference of the hard packing 7 and is brought into contact with the outer circumference between the air conditioner body 1 and the ceiling 2, and the soft packing having a height higher than the hard packing 7, Reference numeral 12 is a soft packing made of two rows of soft rubber that is abutted in the gap between the ceiling 2 of the air conditioner body 1 overhanging in a cantilever manner so as to divide the length of the overhanging portion substantially evenly. is there. Other configurations are similar to those of the conventional example. The free height of the soft packing 8 before tightening the bolts 4 is about twice that of the hard packing 7.

After fastening the soft packings 11 and 12,
The surface pressure and the flexibility are set so as to sufficiently withstand the additive load of the overhang portion of the air conditioner body 1 which is a relatively heavy portion and the fastening force of the bolt 4 and also to absorb vibration.

Next, the operation of the above configuration will be described.

As shown in FIG.
When the state of the air conditioner is reached, the weight of the air conditioner body 1 and the tightening force of the bolts 4 are reduced by the hard packing 7, the soft packing 8, 11, 1.
Although it will be almost balanced with the bending reaction force of 2 (the moment will not be mentioned), the hard packing 7, the soft packings 8, 11, so that the hard packing 7 bears a large part of the reaction force at that time. Twelve elasticity and shapes are set.

Therefore, since the hard packing 7 sufficiently supports the bolt tightening force and the large load of the air conditioner body 1 and the soft packings 11 and 12 complement it, the air conditioner body 1 is firmly attached to the ceiling 2. It will be fixed to and will not generate vibration or tilt.

On the other hand, since the soft packing 8 is compressed more than half of its free height and has sufficient flexibility, the undulation of the rear surface of the air conditioner main body 1, the curved surface of the ceiling 2, etc. causes the air conditioner main body. 1 is sufficiently filled with the non-uniformity of the gap between the ceiling 1 and the ceiling 2 to prevent rain dew, washing water, and the like from entering the vehicle compartment through the opening 2a.

In this embodiment, the tall soft packing 8 is provided on the outer side of the short hard packing 7, but the inner and outer positions can be reversed.

Further, the soft packings 11 and 12 are not necessarily limited to soft ones, and a single hard packing can be freely used within a purposeful range such as surface pressure, vibration absorption, inclination prevention (of the air conditioner main body 1). , Multiple may be used interchangeably.

As described above, according to this embodiment, the opening 2a
The double packing of the hard packing 7 and the soft packing 8 is used around the outside of the air conditioner, and the soft packings 11 and 12 are used in two rows between the ceiling 2 and the overhanging portion of the air conditioner main body 1. There is an advantage that a sufficient fastening force is obtained, the air conditioner main body 1 is firmly fixed, and vibration or tilt does not occur.

Further, since the high-height soft packing 8 is sufficiently compressed, there is an advantage that waterproofing is completely achieved.

Further, since the packing having a double structure of the hard packing 7 and the soft packing 8 is used for the opening 2a, as in the conventional case, one packing has sufficient flexibility, that is, waterproofness, and the air conditioner main body 1 There is also a secondary advantage that the waterproofness and the bolt tightening force can be set independently of each other without having to suffer from the design proposition of the trade-off that is how to set the degree of fixing, that is, the balance with the bolt tightening force. .

[0033]

Since the present invention is constructed as described above, it has the following effects.

That is, according to the present invention, the ceiling (roof) of the vehicle
The packing for waterproofing and vibration proofing of the mounting opening of the air conditioner main body, etc., provided in the double structure, one of which is a soft material packing and the other is a hard material packing, and the overhang portion is a second Since the packing is interposed, sufficient bolt tightening force, that is, firm fixing of the air conditioner main body is achieved mainly by the hard material packing.

As a result, a vehicle air conditioner can be obtained in which the air conditioner body does not tilt or vibrate.

Further, the integrity of waterproofing is guaranteed by the sufficient compression amount of the soft material packing.

Since the packing has a double structure of soft material and hard material, the waterproof property and the mounting strength can be set separately.
You can make an ideal design.

[Brief description of drawings]

FIG. 1 is a side sectional view of an embodiment of the present invention,

FIG. 2 is a perspective view of the hard packing 7 and the soft packing 8 shown in FIG.

3 is a side sectional view schematically showing a state in which the hard packing 7 and the soft packings 8, 11, 12 are compressed by tightening the bolt 4 from the state of FIG. 1,

FIG. 4 is a side sectional view of a conventional example.

[Explanation of symbols]

 1 Air conditioner body 2 Ceiling (also shown as roof) 3 Air outlet 4 Bolt 6 Frame 7 Hard packing 8 Soft packing 11 and 12 Soft packing (second packing)

Claims (4)

[Claims] 1. An air conditioner main body is installed on a roof corresponding to an opening provided in a ceiling of a vehicle compartment through a seal packing arranged around the opening, and is fixed by a bolt. In a vehicular air-conditioning system in which an air outlet is provided on the inside of a vehicle compartment, the seal packing is a double-structured packing, and a second structure is provided between a lower portion of a position where heavy objects are arranged in the air conditioner body and the roof. An air conditioner for a vehicle, characterized by being provided with packing. 2. The vehicle air conditioner according to claim 1, wherein one of the inner and outer peripheral sides of the double structure packing is made of a soft material and the other is made of a hard material. 3. The vehicle air conditioner according to claim 1, wherein the second packing is a soft material packing. 4. The vehicle air conditioner according to claim 2, wherein the soft material packing has a higher dimension in the height direction than the hard material packing.