JPS6172969A - Compressor vibration-proof device for air conditioner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a vibration isolation structure for a rotary compressor of an air conditioner, and particularly to a structure suitable for absorbing circumferential and lateral vibrations of the compressor. Regarding.

[Background of the invention]

A conventional example will be explained with reference to FIG. 5. In this structure, the vibration isolating rubber 5' and the boss 2a' integrated with the base 2' are in surface contact, and when the compressor 1 is operated, the foot portion 1a No consideration was given to preventing vibrations from being transmitted from the base 2a' to the base 2a'. In particular, no consideration is given to vibration absorption in the circumferential and lateral directions of the rotary compressor, and the case where the compressor is installed in an inclined manner.

An example of this type is Utility Model Application No. 59-54019.

[Purpose of the invention]

An object of the present invention is to provide a technique for improving the vibration isolation structure of an air conditioner compressor, particularly a rotary compressor, against vibrations in the circumferential direction and the lateral direction.

[Summary of the invention]

The vibration of an air conditioner compressor consists of vertical vibration and rotational vibration.In the vertical vibration, the compressor has the ability to withstand the weight of the compressor and has spring properties.In the case of a rotary compressor, the rotational vibration can be captured in the circumferential direction and the lateral direction. This was reduced by considering the contact area and position of the pin provided on the base. In other words, the anti-vibration rubber has a pin that protrudes upward on the base and connects this pin to the foot of the compressor. It abuts the pin at a distance below and from the vicinity where it matches the foot.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In FIG. 1, a pin 2a protrudes upward from a base 2, and a hole provided in a leg portion 1a of a compressor 1 is aligned with the vibration isolating rubber 5 via a vibration isolating rubber 5. The anti-vibration rubber 5 and the pin 2a are brought into close contact with each other on the circumference at the upper end 6,
A space 7 is provided between the anti-vibration rubber 5 and the pin 2a near where the anti-vibration rubber 5 and the foot 1a of the compressor 1 match. An outward bulge 9 is provided to provide a dog-shaped space 8 further than the space 7. An inward bulge is provided below the bulge 9, and a protrusion 10 is provided at the inner tip, which is different from the pin 1a. A small gap 1a is provided at the abutting position. Furthermore, near the lower end of the vibration isolating rubber 5, there is a slight gap 11a with the pin 2a at a distance from the lower end.
A protrusion 11 is provided. When the compressor 1 is operated in such a structure, vibration is transmitted from the foot 1a to the vibration isolating rubber 5, and further transmitted to the base 2 through the pin 2a, but the contact area between the vibration isolating rubber 5 and the pin 2a is at the upper end. Since only the 6th part is small and placed at a distance from the leg 1a, less vibration is transmitted. In addition, the compressor 1 repeatedly vibrates in the circumferential direction as shown in Figure 3, but this is caused by the space 7.
works very effectively.

Further, in the vertical direction, vibrations can be alleviated by the action of the bulge 9 and the space 8 as a spring.

Reference numeral 12 denotes a protrusion projecting inward at a position midway between the spaces 7 and 8, and its width is narrower than that of the space 10 and the upper end 6. Also, the gap between the pin 2a and the pin 2a is made larger than the space 10a between the protrusion 9 and the pin 2a. A gap is maintained and the vibration is activated when the vibration is large, such as when the compressor 1 is started or stopped, to further reduce the vibration at this time.

In addition, the height of the base 2 is such that the part 2b near the S tank 4 is higher than the pond part 2C (this is to prevent the compressor 1 from always tilting, so the compressor 1 is tilted so that the upper end 6 is higher than the pond part 2C). Since the spaces 10a and 12a are also maintained without further compression, the effect can be maintained stably.

〔Effect of the invention〕

The vibration of the compressor 1 can be further reduced by the springiness of the vibration isolating rubber 5 and the protrusion 10 and space 7 of the vibration isolating rubber 5 that come into contact with the pin 2a. Furthermore, since the vibration-proof rubber 5 can be integrated, the cost can be reduced in terms of cost and work.

Brief Description of the Drawings Figure 1 is a perspective view of the arrangement of a part of an air conditioner and a compressor vibration isolation structure according to an embodiment of the present invention, and Figure 2 is a perspective view of the compressor foot in Figure 1. A cross-sectional view of the installation structure of the installed anti-vibration rubber,
Figure 3 is a plan view showing the direction of vibration when the compressor in Figure 1 is viewed from directly above, Figure 4 is a partial side view of Figure 1, and Figure 5 is a diagram of the conventional compressor vibration isolation structure. It is a partial side sectional view.

DESCRIPTION OF SYMBOLS 1... Compressor, 1a... Foot part, 2... Base, 2
a... Pin, 4... S tank, 5... Anti-vibration comb,
7.8...Space, 6...Upper end, 9...Bulge, 10...Protrusion, 11...Protrusion, 12...Protrusion.

Mino 3121 50th

Claims (1)

[Scope of Claims] 1. A pin protrudes upward from a base, a vibration isolating rubber is interposed between the pin, and a hole provided in the foot of the compressor is matched with the vibration isolating rubber, the vibration isolating rubber The pin 2a is placed in close contact with the circumference of the upper end of the vibration isolating rubber, and a space is provided between the vibration isolating rubber and the pin near the area where the vibration isolating rubber matches the foot of the compressor. An outward bulge is provided below the mating part of the machine's foot to create a space larger than the space, and a protrusion that comes into contact with the pin is provided near the bottom end of the bulge. A compressor vibration isolator for an air conditioner characterized by a minute gap. 2. The compression vibration isolator for an air conditioner according to claim 1, characterized in that a projection is provided at a distance from the lower end of the vibration isolator and has a slight gap with the pin portion.