JPS58137633A - Compressor supporting apparatus - Google Patents

Abstract

PURPOSE:To prevent collision of an upper projection formed at the top of a mechanical section of a compressor against its retainer at the time of stopping the compressor, by supporting support legs of the compressor by vibration-damping members, and making the coefficient of elasticity of the damping members, located on the side of a suction pipe smaller than that of the damping members located on the side of a discharge pipe. CONSTITUTION:The lower portion of a mechanical section 2 of a compressor is supported by coil springs 3 while the upper protion of the mechanical section 2 is supported by a coil spring 4, so that the mechanical section 2 is supported in an outer shell in a vibration damping manner, Further, support legs 7 of the outer shell 1 are supported on a base plate 10 by means of coil springs 8, 9. Here, the spring constant of the coil springs 8 located on the side of a suction pipe 11 is selected to be smaller than that of the coil spring 9 located on the side of a discharged pipe 12. Therefore, when the compressor is stopped, the mechanical section 2 and the outer shell 1 tend to turn and the center of rotation also tends to displace toward the suction pipe 11 because the diameter of the suction pipe 11 is greater than that of the discharge pipe 12. However, since the spring constant of the coil springs 8 is small, the restricting force by the suction pipe 11 is moderated, so that collision of a projection 5 against its retainer 6 can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support device for a compressor in an air conditioner, a refrigerator, etc. 1. One of the purposes is to prevent vibration when the engine is stopped and contact between the internal equipment and the outer shell.

Conventionally, the support device for the compressor in air conditioners, etc.
Most of the structures are as shown in Figures 3 to 3.

That is, in the figure, a compressor a includes a suction pipe C and a discharge pipe d, and its bottom leg is supported and fixed to a base plate f via a coil spring O. Here, the suction pipe C is the evaporator g
Since the refrigerant pressure loss between the pipe and the refrigerant greatly affects the cooling capacity, large-diameter pipes are used to minimize the refrigerant pressure loss as much as possible. On the other hand, the discharge pipe d
In this case, the refrigerant pressure loss between the condenser and the condenser does not have as great an effect on the capacity as on the suction side, and relatively small diameter pipes are used to reduce material costs.

Further, inside the compressor a, as shown in FIGS. 2 and 3, the mechanism part a is supported at the lower part by a plurality of coil springs a2 at an angle of <lL3, and by one coil spring at the upper part. It is supported by the outside town by A4. A receiver a5 fixed to the outside is fitted inside the coil spring &4, and a protrusion a6 fixed to the upper part of the mechanism part a1 is located inside the receiver a5. .

With this configuration, the internal mechanism ILI of the compressor is protected against vibrations during transportation of products such as air conditioners! This prevents damage to L2.

However, in such a structure, when the compressor is a hermetic type, the stator and mechanism part aI tend to rotate in the opposite direction to the rotational direction of the motor rotor when the compressor is started, and when the compressor is stopped, the stator and the mechanism part aI tend to rotate in the opposite direction to the upper part I when the compressor is started. Since mechanism part a tries to rotate, the outside of the compressor (IL3 also tries to rotate in the above direction. In other words, during steady operation, protrusion part a, as shown in Fig. 4, It is located approximately at the center, but when it is stopped, it moves to a certain angle as shown in Figure 6. When it is in the middle, the suction pipe 0 and the discharge pipe d, which are fixed at the outside of the compressor or <lLa, are located at the suction pipe 0. Since the diameter is larger, the outer shell a
3 has a large restraining force, and as a result, the center of rotation G is at the suction pipe 0.
Shift to the side. Moreover, the mechanism part & 10 rotation angle are outside.
Since the rotation angle of ax is larger, the protrusion IL6 and the receiver a
6 collide and generate an impact sound.

This impact sound gives the user a sense of anxiety, and to prevent this collision, use the protrusion A6 and the receiver! Increase the gap at L5, mechanism section 'L+! : It is possible to increase the gap between the outside and It sympathizes with the shortcomings of the past.

Hereinafter, FIGS. 6 to 6 of the accompanying drawings showing one embodiment of the present invention.
This will be explained based on FIG.

In the figure, reference numeral 1 denotes an outer shell of a compressor, and a compression mechanism section having a known structure is disposed inside. The mechanism section 2 is supported by a plurality of coil springs 3 at the lower part and by a coil spring 4 at the upper part to absorb vibrations on the outer shell 1, respectively.

Further, a protrusion 6 is provided on the upper part of the mechanism part 2, and this is enclosed by a receiver 6 fixed to the outer shell 1. 7
Support legs are fixed to the bottom of the shell 1, and the compressor is supported by the base plate 1o via coil springs 8 and 9 attached to the support legs 7. Further, 11 is a suction pipe, and 12 is a discharge pipe, each of which is fixed to the outer frame 1 of the compressor. The suction pipe 11 is replaced with the discharge pipe 1 for the same reason as in the conventional case.
The diameter is larger than 2. Also, the coil spring 8,
9, the coil spring 8 on the suction pipe 11 side is connected to the discharge pipe 12.
The spring constant is smaller than that of the side coil spring e.

In the above configuration, when the compressor is stopped, the compressor mechanism section 2 and the outer paddle 1 try to rotate as shown in FIG. At the time of rotation, the suction pipe 11 has a larger diameter than the discharge pipe 12, so the restraining force on the suction pipe 11 side is large, and the center of rotation G tends to shift toward the suction pipe 11 side. However, since the coil spring 8 on the suction pipe 11 side has a smaller spring constant than the coil spring 9 on the discharge pipe 12 side, it has a greater degree of freedom, and the restraining force exerted by the suction pipe 11 is relaxed, and as a result, the center of rotation G is compressed. It remains close to the center of the aircraft. This makes it possible to avoid collision between the protrusion 6 and the receiver 6.

Therefore, the gap between the protrusion 6 and the receiver 6 can be made smaller, and the gap between the outer shell 1 and the mechanism part 2 can be made smaller. It is possible to produce a compressor at a low price without the impact noise that makes people feel uneasy.

In the above embodiment, the case where a coil spring is used as the cushioning material has been described, but it is also possible to use an elastic body such as rubber as a cushioning material! J! A similar effect can be obtained by applying The same process can also be applied to other products such as refrigerators.

As is clear from the above embodiments, the compressor support device according to the present invention includes a support leg provided at the bottom of a hermetic compressor to which an evaporator and a condenser are connected by piping, and a plurality of coils connected to the support leg. Support with cushioning material such as spring or rubber,
Furthermore, the elastic coefficient of the buffer material on the suction pipe side and the elastic coefficient of the buffer material on the discharge pipe side are made smaller. By changing the elastic coefficient, the protrusion on the upper part of the mechanism that occurs when the compressor stops, and the receiver It is possible to prevent collisions between objects, avoid collision noises that give a sense of anxiety to the user, and also reduce the gap between the protrusion and the holder to reduce the gap between the mechanism and the outside, making it small and lightweight. This has various advantages, such as the fact that the compressor can be realized at low cost.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the internal structure of an air conditioner equipped with a conventional compressor support device, Fig. 2 is a plan cross-sectional view of a compressor equipped with the same support device, and Fig. 3 is a support for the compressor. FIGS. 4 and 6 are explanatory diagrams showing the state of vibration generation in the same compressor, and FIG. 6 is a plan sectional view of a compressor equipped with a support device according to an embodiment of the present invention. , FIG. 7 is a longitudinal cross-sectional view showing the supported state of the compressor, and FIG. 8 is an explanatory diagram showing the vibration-absorbing state by the support device. 1...Outside of the compressor, 2...Compressor,
6... Protrusion, 6... Receiver, 8...
... Suction pipe side coil spring, 9 ... Discharge pipe side coil spring, 11 ... Suction pipe, 12 ...
・Discharge piping. Name of agent: Patent attorney Toshio Nakao and 1 other person 1st floor
fil Jl12 Figure *4 Figure 16 Figure 118 Figure

Claims (1)

[Claims] A support leg is provided at the bottom of the hermetic compressor that is connected to the evaporator and condenser through piping, and this support leg is supported by multiple coil springs or cushioning material such as rubber. A compressor support device whose elastic modulus is smaller than that of the cushioning material on the discharge piping side.