JP3979233B2 - Anti-vibration support member for condenser - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an anti-vibration support member for a condenser that elastically supports a condenser of an air conditioner for a vehicle on a vehicle body .
[0002]
[Prior art and problems to be solved by the invention]
FIG. 9A shows the mounting structure of the condenser 1 currently being implemented. The upper and lower ends of the condenser 1 are assembled to the vehicle body via vibration-proof rubber made of an elastic body such as rubber. Yes.
[0003]
By the way, this anti-vibration rubber absorbs the vibration of the fluid due to the pulsation of pump means such as a compressor, and prevents the vibration accompanying the pulsation from propagating to the vehicle, while the heat exchanger itself accompanying the vibration of the vehicle. It absorbs vibration.
[0004]
Further, as shown in FIG. 9B, the vibration isolating rubber 10 on the lower end side is press-fitted into a hole provided in the vehicle body and fixed to the vehicle body. Therefore, in order to improve the vibration absorbing performance of the vibration isolating rubber. When the elastic coefficient of the vibration isolating rubber is reduced, the fixing force for fixing the vibration isolating rubber to the vehicle body is reduced.
[0005]
For this reason, if a large vibration acts on the anti-vibration rubber from the vehicle body side while the vehicle is running with the elastic coefficient of the anti-vibration rubber reduced to improve the vibration absorption performance of the anti-vibration rubber, the anti-vibration rubber will fall off the vehicle body. There is a risk that.
[0006]
In view of the above points, the present invention firstly provides a novel anti-vibration support member for a condenser that is different from the conventional one, and secondly, the anti-vibration support member for the condenser improves the vibration absorption performance while the anti-vibration support member for the condenser is a vehicle. The purpose is to prevent the body from falling off.
[0007]
The present invention, in order to achieve the above object, a vibration-damping support member condenser for elastically supporting the condenser (1) to the vehicle body (9) for a vehicle fluid therein flows, condenser ( 1) an elastically deformable vibration absorbing portion (10a) that is formed in a plate shape that absorbs an excitation force associated with vibration of 1), and a conical taper-shaped insertion that extends in a direction perpendicular to the plate surface of the vibration absorbing portion (10a) Yes parts and (10b), elastically deformable engaging protrusion which engages a portion of the conical surface the vehicle body (9) projecting from (10d) in the outer side of the insertion portion (10b) and (10c) The vibration absorbing portion (10a), the insertion portion (10b), and the engagement protrusion (10c) are integrally formed of rubber, and the engagement protrusion (10c) is a circumference of the insertion portion (10b). and a plurality of arranged in the direction, one engaging protrusion (10c) has its projecting distance, the insertion portion of (10b) A triangular cross-sectional shape that is smaller as toward the end side, that the cross-sectional shape portion corresponding to one side of the triangle extending in the same direction as the insertion portion is continuous with the insertion portion (10b) first It is characterized by.
[0008]
As a result, the anti-vibration rubber (10) can be firmly fixed to the vehicle body (9 ) as compared with the prior art. Accordingly, it is possible to prevent the vibration-proof support member for the condenser from falling off the vehicle body (9) while reducing the elastic coefficient of the vibration-absorbing portion (10a) and improving the vibration-absorbing performance of the vibration-proof rubber (10). Thus, a novel anti-vibration support member for a condenser different from the conventional one can be obtained.
[0010]
Further, according to the present invention, the plurality of engagement protrusions (10c) are arranged in the circumferential direction of the insertion part (10b), and the protrusion dimension of one engagement protrusion (10c) is inserted. As a cross-sectional shape of a triangle that becomes smaller toward the tip side of the portion (10b), a portion corresponding to one side of the triangle extending in the same direction as the insertion portion is continuous with the insertion portion (10b). Therefore, the vibration isolating support member can be easily inserted and mounted while preventing the vibration isolating support member from falling off the vehicle body .
[0011]
In the present invention, the vibration absorbing portion (10a), the insertion portion (10b), and the engaging protrusion (10c) are composed of soft rubber forming the vibration absorbing portion (10a), the insertion portion (10b), and the engaging protrusion. The second feature is that the two-color molding method using the hard rubber forming (10c) is integrally formed.
[0012]
Incidentally, the reference numerals in parentheses of each means described above are an example showing the correspondence with the specific means described in the embodiments described later.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
In this embodiment, the anti-vibration support member according to the present invention is applied to an anti-vibration rubber for elastically supporting the lower end side of the condenser of the vehicle air conditioner on the vehicle body.
[0014]
1 is a view showing a mounting structure of the condenser 1 using the vibration isolating rubber 10 according to the present embodiment, and FIG. 2 is an enlarged view of a portion A (lower end side mounting portion) in FIG. FIG. 4 is an external view of the vibration isolating rubber 10 according to the present embodiment, FIG. 4 is an enlarged view of an upper end side mounting portion, and FIG. 5 is a side view of FIG.
[0015]
As shown in FIG. 1, the condenser 1 includes a plurality of tubes 2 through which refrigerant flows, wave-like fins 3 joined to the outer surface of the tubes 2, and tubes 2 arranged at the longitudinal ends. It consists of a header tank 4 that communicates with the side plate 5 and a side plate 5 that extends in parallel with the tube 2 and reinforces the core part composed of the tube 2 and the fins 3. These 2 to 5 are integrated by brazing. .
[0016]
The bracket 6 on the lower end side is an attachment stay member fixed to the header tank 4 by fastening means such as bolts, and the bracket 7 on the upper end side is an attachment stay member fixed to the side plate 5 by fastening means such as bolts. Yes, the condenser 1 is fixed to the vehicle body 9 via vibration-proof rubbers 8 and 10 assembled to the brackets 6 and 7.
[0017]
As shown in FIG. 4, the vibration isolating rubber 8 on the upper end side is formed by integrating a groove portion 8a for sandwiching the bracket 7, a bolt 8b for suspension, and a nut portion 8c for mounting the bolt 8b. It is integrated by embedding in the rubber cushion 8 when molding the rubber cushion 8. Incidentally, the anti-vibration rubber 8 on the upper end side is the same as the conventional (present) implementation product.
[0018]
Further, as shown in FIGS. 2 and 3, the vibration-proof rubber 10 on the lower end side is an elastically deformable vibration absorbing portion 10 a and a vibration absorbing portion formed in a disk shape that absorbs an exciting force accompanying vibration of the condenser 1. An insertion portion 10b having a conical taper shape extending in a direction perpendicular to the plate surface 10a, and an elastically deformable engagement that protrudes outward from the conical surface 10d of the insertion portion 10b and engages a part of the vehicle body 9. It is configured to have a mating protrusion 10c, and these 10a to 10c are integrally formed of rubber.
[0019]
Further, the projecting dimension of the engaging protrusion 10c becomes smaller toward the distal end side of the insertion portion 10b. When the vibration isolating rubber 10 is attached to the vehicle body 9, as shown in FIG. The anti-vibration rubber 10 is fixed to the vehicle body 9 so as to sandwich the vehicle body 9 by the engagement protrusion 10c.
[0020]
Next, the effect of this embodiment is described.
[0021]
The vibration isolating rubber 10 on the lower end side according to the prior art is only press-fitted into the vehicle body 9, whereas in the vibration isolating rubber 10 on the lower end side according to the present embodiment, the engagement protrusion 10 c is Since it engages with a part of the vehicle body 9, the anti-vibration rubber 10 can be firmly fixed to the vehicle body 9 as compared with the prior art.
[0022]
Therefore, it is possible to prevent the vibration isolating rubber 10 from dropping from the vehicle body 9 while reducing the elastic coefficient of the vibration absorbing portion 10a and improving the vibration absorbing performance of the vibration isolating rubber 10.
[0023]
Incidentally, FIG. 6 shows an examination plan for preventing the vibration-proof rubber 10 from falling off the vehicle body 9 by using a material having a high spring effect for the bracket 6. In this examination plan, however, the manufacturing cost of the bracket 6 is increased. On the other hand, in the present embodiment, it can be dealt with by changing the shape of the anti-vibration rubber 10.
[0024]
Therefore, in this embodiment, it is possible to prevent the vibration isolating rubber 10 from dropping from the vehicle body 9 while improving the vibration absorbing performance while suppressing the increase in the manufacturing cost of the vibration isolating composition.
[0025]
7 is a test result showing the relationship between the acceleration generated in the condenser 1 and the frequency, and FIG. 8 is a test result showing time until the vibration isolating rubber 10 (condenser 1) falls off. As can be seen from FIG. 8, according to the present embodiment, it is possible to prevent the vibration isolating rubber 10 from dropping from the vehicle body 9 while improving the vibration absorbing performance. Note that the test conditions correspond to vehicle vibrations that actually occur.
[0026]
Moreover, since the protrusion dimension of the engaging protrusion 10c becomes smaller toward the distal end side of the insertion portion 10b, the vibration isolation rubber 10 can be easily inserted into the vibration isolation rubber mounting hole provided in the vehicle body 9. can do.
[0028]
(Other embodiments)
In the above-described embodiment, the vibration absorbing portion 10a, the insertion portion 10b, and the engaging projection portion 10c are integrally formed of the same rubber. However, the present invention is not limited to this, and the vibration absorbing portion 10a is relatively soft. The insertion portion 10b and the engagement projection portion 10c may be formed of rubber that is harder than the vibration absorbing portion 10a. At this time, all may be integrally molded by a two-color molding method, or each may be molded and then joined by vulcanization or the like.
[Brief description of the drawings]
FIG. 1 is a view showing a condenser mounting structure using vibration-proof rubber according to an embodiment of the present invention.
2 is an enlarged view of a portion A (lower end side attachment portion) of FIG. 1; FIG.
FIG. 3 is an external view of an anti-vibration rubber according to an embodiment of the present invention.
FIG. 4 is an enlarged view of an attachment portion on the upper end side according to the embodiment of the present invention.
FIG. 5 is a side view of FIG. 1;
FIG. 6 is a view showing a lower-end-side mounting structure related to trial manufacture.
FIG. 7 is a graph showing the relationship between acceleration generated in a condenser and frequency.
FIG. 8 is a bar graph showing the time until the anti-vibration rubber (condenser) falls off.
9A is a view showing a condenser mounting structure according to the prior art, and FIG. 9B is an enlarged view of a portion A in FIG. 9A.
[Explanation of symbols]
9 ... Vehicle body, 10 ... Anti-vibration rubber, 10a ... Vibration absorber,
10b: Insertion portion, 10c: Engagement projection portion.

Claims (2)

An anti-vibration support member for a condenser that elastically supports a vehicle condenser (1) through which a fluid flows inside the vehicle body (9),
An elastically deformable vibration absorbing portion (10a) formed in a plate shape that absorbs an exciting force accompanying vibration of the condenser (1) ;
A conical tapered insertion portion (10b) extending in a direction perpendicular to the plate surface of the vibration absorption portion (10a);
An elastically deformable engagement protrusion (10c) that protrudes outward from the conical surface (10d) of the insertion portion (10b) and engages with a part of the vehicle body (9) ;
The vibration absorbing portion (10a), the insertion portion (10b), and the engagement protrusion (10c) are integrally formed of rubber,
A plurality of the engaging protrusions (10c) are arranged in the circumferential direction of the insertion portion (10b),
One of the engaging protrusions (10c) has a triangular cross-sectional shape in which the protruding dimension becomes smaller toward the distal end side of the insertion part (10b), and extends in the same direction as the insertion part. A vibration-proof support member for a condenser, wherein a portion corresponding to one side of a triangle has a cross-sectional shape that is continuous with the insertion portion (10b) . The vibration absorbing portion (10a), the insertion portion (10b), and the engaging protrusion (10c ) are a soft rubber forming the vibration absorbing portion (10a), the insertion portion (10b), and the engaging protrusion. The anti-vibration support member for a condenser according to claim 1 , wherein the anti-vibration support member is integrally molded by a two-color molding method using a hard rubber forming (10c) .

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