CN203257627U

CN203257627U - Small compressor high-pressure and low-pressure automatic balancing device

Info

Publication number: CN203257627U
Application number: CN 201320164448
Authority: CN
Inventors: 梁苗椿; 邢懿烨; 吴储正; 王益锋; 魏东寅; 费红钗
Original assignee: ZHEJIANG DIBEI ELECTRICAL CO Ltd
Current assignee: ZHEJIANG DIBEI ELECTRICAL CO Ltd
Priority date: 2013-03-25
Filing date: 2013-03-25
Publication date: 2013-10-30
Anticipated expiration: 2023-03-25

Abstract

The utility model discloses a small compressor high-pressure and low-pressure automatic balancing device which comprises a balancing piston and a locating pin, the balancing piston and the locating pin are arranged on a piston cylinder, a spring is arranged between the locating pin and the balancing piston, an unloading channel is further arranged on the piston cylinder, the unloading channel is communicated with a high-pressure channel on a compressor, and the unloading channel also can be sealed by the balancing piston. Through the adoption of the structure, the automatic balancing device is installed in the small compressor, high and low pressure difference in the compressor can be removed, a compressor motor is made to be started without loading, starting torque and starting currents of the motor are reduced, and energy is saved.

Description

Light duty compressor high-pressure and low-pressure automatic balancing arrangement

Technical field

The utility model discloses a kind of light duty compressor high-pressure and low-pressure automatic balancing arrangement.

Background technique

The compressor that uses at refrigerating appliances such as refrigerators comprises hyperbaric chamber, valve plate, compression cylinder, piston cylinder, piston and the high-pressure channel on piston cylinder, the shortcoming that this compressor arrangement exists is when compressor starts again, have height pressure reduction in the compressor, compressor electric motor is started in loaded situation, increased starting torque and the inrush current of motor, the energy can not well be utilized.

The model utility content

In order to overcome above-mentioned shortcoming of the prior art, the purpose of this utility model is to provide a kind of light duty compressor high-pressure and low-pressure automatic balancing arrangement, it can lay down the height pressure reduction in the compressor, compressor electric motor is started not having in the loaded situation, reduce starting torque and the inrush current of motor, saved the energy.

To achieve these goals, the technological scheme that the utility model adopts is: a kind of light duty compressor high-pressure and low-pressure automatic balancing arrangement, comprise the equalizing piston, the locating stud that are installed on the piston cylinder, be provided with spring between this locating stud and the equalizing piston, on piston cylinder, also be provided with the relief passage, this relief passage is communicated with high-pressure channel on the compressor, and this relief passage can also be sealed by described equalizing piston.

After adopting said structure, the utility model is installed in the light duty compressor, can lays down the height pressure reduction in the compressor, compressor electric motor is started not having in the loaded situation, reduced starting torque and the inrush current of motor, saved the energy.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is structural representation of the present utility model.

Embodiment

As shown in Figure 1, a kind of light duty compressor high-pressure and low-pressure automatic balancing arrangement, comprise the equalizing piston 2, the locating stud 3 that are installed on the piston cylinder 1, be provided with spring 4 between this locating stud 3 and the equalizing piston 2, on piston cylinder 1, also be provided with relief passage 5, this relief passage 5 is communicated with high-pressure channel 8 on the compressor, and this relief passage 5 can also be by described equalizing piston 2 sealings.

During compressor operating, utilize compressor valve board 6 through holes, in the pressure difference that compressor hyperbaric chamber 7 and high pressure gas passage produce, promote equalizing piston 2 and move downward sealing relief passage 5, the high pressure gas channel pressure is raise, lead to condenser through high-pressure check valve.When compressor quits work, dwindle at compressor hyperbaric chamber and high-pressure channel 8 interior pressure reduction, and reach balance, equalizing piston 2 is under spring 4 effects, it is up to promote equalizing piston 2, impel relief passage 5 open-minded, high-pressure refrigerant in high-pressure channel 8 and the hyperbaric chamber flows in the compressor pump case, owing to be provided with safety check in the high compressor refrigeration system, stoped the high-pressure system inner refrigerant to be back in the compressor hyperbaric chamber, make compressor hyperbaric chamber and high-pressure channel 8 internal pressure balances, again working for compressor starts without pressure reduction.

Claims

1. light duty compressor high-pressure and low-pressure automatic balancing arrangement, it is characterized in that: comprise the equalizing piston (2), the locating stud (3) that are installed on the piston cylinder (1), be provided with spring (4) between this locating stud (3) and the equalizing piston (2), on piston cylinder (1), also be provided with relief passage (5), this relief passage (5) is communicated with high-pressure channel (8) on the compressor, and this relief passage (5) can also be sealed by described equalizing piston (2).