JPS58202106A - Air conditioner for vehicle - Google Patents

Abstract

PURPOSE:To mount or demount an air-conditioning unit easily, and to maintain the airtight capability of joining sections with other units by fitting a flange to the whole circumference of an opening section for the ventilation of the unit and fitting and connecting an annular sealing member with an internal ventilating hole to the whole circumference of the flange. CONSTITUTION:L-shaped outward flanges 11a, 11b are formed to the whole circumference of an opening section for the ventilation of the case 11 of a cleaning unit C while grooves 12a, 13a are formed to sealing members 12, 13 and annular air holes 12b, 13b to the inside. When the sealing members 12, 13 are fitted to the case flange sections 11a, 11b while being extended, they shrink by their elasticity and are fixed to the case 11, and adhesives are unnecessitated. The sealing members 12, 13 are not exfoliated and do not fall off when mounting or demounting the unit C because they are fitted and connected extending over the whole circumference. The airtight capability of joining can be maintained completely under the state in which the seals 12, 13 are connected to an air intake blower I and a heater unit H because they have the air holes 12b, 13b.

Description

[Detailed description of the invention] The present invention relates to an improvement in a vehicle air conditioner.

In general, the indoor air conditioner unit of the vehicle air conditioner is
As shown schematically in FIG. 1, there is an air intake blower I having an inside/outside air switching function, and a cooling unit C having an evaporator Et which evaporates refrigerant during cooling.
It consists of a heater core that has a heating function by circulating engine coolant, and a heater unit H that has an air mix door and the like.

As shown in FIG.
a, 1b are integrally formed, and these 7 langes -1a, 1
An annular sealing member (packet) 2.3 integrally formed of an elastic material is adhered to b' with an adhesive.

The cooling unit C configured in this manner is connected to the air intake blower I and the heater unit (H) through the respective seal members 2.6, respectively.
By fixing in a compressed state of 6 gold, each connection is kept airtight.

However, in such a conventional vehicle air conditioner, when each unit, especially the cooling unit C, is attached or detached, the sliding direction when the unit is attached or detached is approximately parallel to the surface to which the member is attached. The sealing member 2.6 may peel off from the 7th rank portions 1a and 1b, causing ventilation leaks and water leaks, as well as impairing workability when attaching and removing the unit, and also requiring a large amount of work to attach the sealing member. This required a number of man-hours.

This invention was made in view of the above points, and does not require the work of pasting a sealing member, and when the unit is attached or detached,
It is an object of the present invention to provide a vehicle air conditioner device in which there is no fear that a seal member will fall off.

Therefore, in the vehicle air conditioner according to the present invention, an annular seal member having an annular hole inside is fitted and locked to the flange portion formed around the entire circumference of the ventilation opening of the air conditioner unit. Thus, the above objectives have been achieved.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 6 to 6 of the accompanying drawings.

FIG. 6 shows the entire first embodiment of the present invention, in which outward L-shaped flanges 11a and 11b are formed around the entire circumference of the case 11 of the cooling unit C.

On the other hand, an annular sealing member 12.11 is integrally molded from a stretchable elastic material such as sponge or rubber, and grooves 12a and 13ae are provided in this sealing member 12.13 into which the flanges 11a and 11b can fit, and an internal Annular pores 12b and 13bt are provided in the sealing member 12.13'.
The eggplant has a hollow shape.

If the sealing members 12.13f are fitted into the grooves 12a, 13at and the case flanges 11a, 11b of the cooling unit C while being slightly stretched, the sealing members 12.13 will contract due to their elasticity. It is fixed to the case 11 and does not require a fixing adhesive like the conventional one.

Further, the seal member 12.16 has a flank portion 11a.

Since the sealing members 12 and 11b are fitted and locked over the entire circumference, the sealing members 12 and 13 will not peel off or fall off even if they are slid in any direction when the cooling unit C is attached or detached.

Furthermore, the seal member 12.13 has an annular pore 12 inside.
By appropriately selecting the size and shape of the pores 12b and 13b and the cross-sectional shape of the sealing member 12.16, the air intake blower and heater unit shown in FIG. )H, the pores 12b and 13b enable fine adjustment of adhesion, and the airtightness of the joint can be maintained completely.

Next, FIG. 4 shows a second embodiment of the present invention.

In this embodiment, the opening of the case 21 of the cooling unit C is provided with U-shaped flange portions 21a and 21bi that are perpendicular to the end surface of the case, and a plurality of flanges are provided on the bottom surface thereof at intervals in the circumferential direction. Through hole 21c, 2
1 dt, and the through holes 21c are provided in the bottom surfaces of the annular sealing members 22 and 23, respectively.

A plurality of retaining protrusions 22a and 23a that fit into 21d.
The interior is provided with annular pores 22b as in the first embodiment.
.

23b.

The sealing members 22 and 23' are respectively fitted into the U-shaped flanks 21a and 21b to be clamped, and the through holes 2 of the case 21 are inserted into the respective retaining protrusions 22a and 23a'.
1c and 2+1d and lock them.

In this case as well, the sealing members 22 and 23 are aligned all around the opening of the case 21, and the plurality of retaining protrusions 22
Case 21 without using adhesive by a, 2+a
Since the cooling unit is securely locked in place, there is no risk that the seal members 22 and 23 will fall off from the case 21 even if they slide parallel to the seal surface with the mating unit when the cooling unit is installed or removed, and the airtightness of the joint is maintained. is also complete.

FIG. 5 shows a third embodiment of the present invention, which is applicable when the case opening of the cooling unit C cannot be provided with an L-shaped or U-shaped flank.

In this embodiment, the end face of the opening of the case 61 is used as the flange parts 31a and 31b, and the flank part 31
A and 31b are respectively provided with a plurality of through holes 31c and 31dTr at intervals in the circumferential direction.

On the other hand, it has grooves 32a and 33affi into which the flank parts 31a and 31b fit, and an annular pore 32b inside.
, 33b, a plurality of through holes 32(!, 33(!) corresponding to the through holes 31c, 31d, respectively, are provided in the flank portion of the sealing member 32.33.
When mounting, the through holes 61c and 51d on the case side were aligned with the through holes 32c and 33c of the sealing member 32.33, respectively, and the sealing member 32.33 was attached to the flanges 31a and 31b of the case 31. Rear, through hole 32c.

31c, 33c, 31d<Fixing metal fittings 34 such as rivets and clips are respectively inserted to lock the seal members 52 and 53 to the case 31.

In addition, in this embodiment, since the seal member 32°66 forms the trumpet-shaped suction port A and discharge port B for smooth air flow inside the case 61, in addition to the above-mentioned effects, The reduction in ventilation resistance prevents pressure loss, and it is also possible to reduce noise by reducing vortices and jets generated at the opening.

FIG. 6 shows a fourth embodiment of the present invention, which further improves the workability when installing the seal member in the third example,
Components corresponding to those in FIG. 5 are given the same reference numerals.

In this embodiment, grooves 32a and 33at are formed only on one side of each flange surface of the sealing members 32 and 33.
A plurality of through holes 62c are spaced apart in the circumferential direction.

33 C'fr is provided, and this through hole 62 is provided on the other side.
c.

A plurality of retaining protrusions 32d and 33d corresponding to 33c.
After installing the seal members 62,66'r on the seven flange portions 31a and 31b of the case 61, the retaining protrusion 32
d and 33d are enlarged and locked in the through holes 61c and 31d of the case 61 and the through holes 32c and 33c of the sealing member 32.3'3, respectively.

According to this embodiment, when the seal member 32,33'r is attached to the flange portions 31a, 31b of the case 61, no separate fixing fittings are required, so in addition to the effects of the third embodiment, the seal member The installation can be made even easier.

In each of the above-mentioned embodiments, a case has been described in which the seal member is attached to the ventilation opening of the cooling unit C. Needless to say, they may be installed separately.

As described above, according to the present invention, the flange portion is formed around the entire circumference of the ventilation opening of the air conditioner unit.
Since the annular seal member having an annular pore inside is fixed at a low position over the entire circumference of the seven flange portions, no adhesive is required when installing the seal member, and the installation work is easy. It is. Moreover, this air conditioner unit)k
Sufficient airtightness is maintained when connected to other units, and there is no fear that the sealing member will peel or fall off when the unit is removed.

[Brief explanation of drawings]

FIG. 1 is a side view showing a schematic configuration of a vehicle air conditioner. FIG. 2 is a partially sectional view 911I showing the state of the seal member bag layer of a conventional cooling unit. FIG. 6, FIG. 4, FIG. 5, and FIG. 6 respectively show the first embodiment, the second embodiment, the third embodiment, and the fourth embodiment of the present invention.
FIG. 2 is a facing view similar to FIG. 2 showing the embodiment. 1, 11.21.31...Case 11a, 1 lb, 21a, 21b, 31a,
31b-flange portion 12, 15.22.23.62.
33.42.43.../-ru member 12b, 13b,
22b, 23b, 32b, 33b, 42b,
43b...Stomata I...Air intake blower C...Cooling unit H...Heater unit Figure 1 Figure 2 Figure 4 Procedure amendment (white side July 5, 1980 Commissioner of the Japan Patent Office Kazu Wakasugi) Husband 1, Indication of the case Special application No. 57-84809 2, Name of the invention Vehicle air conditioner device 3, Person making the amendment Relationship to the case Patent applicant Nissan, 2 (399) Takaracho, Kanayō-ku, Yokohama-shi, Kanagawa Prefecture Jidosha Co., Ltd. 4, Agent 1-20-5 Higashiikebukuro, Toshima-ku, Tokyo Figure Box 6, Contents of the Amendment The drawing "Figure 6" is amended as shown in the corrected drawing attached to this document. 7. Attached documents

Claims (1)

[Claims] 1. A flange is formed around the entire circumference of a ventilation opening of an air conditioner unit that constitutes a vehicle air conditioner, and an annular sealing member integrally formed of an elastic material and having annular pores inside is installed around the entire circumference of the flange. An air conditioner for a vehicle, characterized in that the unit is fitted and locked by the seal member, and the unit is connected to another unit via the seal member.