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Vibration attenuation structure and compressor provided with same

A vibration-damping structure and compressor technology, which is applied in the field of compressors, can solve problems such as compressor vibration and noise, and achieve the effects of suppressing resonance, reducing vibration and noise, and widening the operating frequency and working condition range

Inactive Publication Date: 2018-12-18
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, the technical problem to be solved by the present invention is to overcome the defects of compressor vibration and noise caused by the vibration of the pump body caused by various exciting forces in the compressor in the prior art, so as to provide a vibration damping structure and a its compressor

Method used

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  • Vibration attenuation structure and compressor provided with same
  • Vibration attenuation structure and compressor provided with same
  • Vibration attenuation structure and compressor provided with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] Embodiment 1 Referring to Figures 3 and 4, preferably, the vibrating body includes the cylinder 7, and a cylinder hole 71 is arranged on the cylinder 7 along the axial direction, and the cylinder hole 71 is formed as the cavity Part or all of the mass block 1 is arranged in the cylinder bore 71 . The mass block and the cavity can be used to reduce vibration and noise of the cylinder.

[0111] Preferably, the cylinder hole 71 is a circular through hole passing through the cylinder 7 along the axial direction, and the mass block 1 is a cylindrical structure.

[0112] Preferably, the bearing 8 includes a first bearing 81 connected to one axial end surface of the cylinder 7 and a second bearing 82 connected to the other axial end surface of the cylinder 7, the first bearing 81 and The second bearing 82 seals the circular through hole into the airtight cavity.

[0113] Preferably, the axial gap e3 between the proof mass 1 and the cavity satisfies 0<e3<2mm, and the radial gap...

Embodiment 2

[0118] Example 2, see Figure 5 , preferably, the vibrating body includes a crankshaft 5, and a crankshaft hole 51 is provided at one end of the crankshaft 5 along its axial direction, the crankshaft hole 51 forms part or all of the cavity, and the mass 1 is set in the crankshaft hole 51. The mass block and the cavity can be used to reduce vibration and noise of the crankshaft.

[0119] Preferably, a screw 9 is inserted into the crank hole 51 at the one end of the crankshaft 5, and the crank hole 51 is sealed into an airtight cavity through the screw 9; Figure 5 , in Embodiment 2 of the present invention, the airtight cavity 3 is composed of a cylindrical hole 13 and a screw 14 sealed at the upper end of the crankshaft 12; the axial (Z-direction) gap e3 between the cylindrical mass 1b and the airtight cavity 3 satisfies (0<e3<2mm), the radial clearance e1,2 satisfies (0<e1,2<2mm).

[0120] A modified embodiment of Embodiment 2, or, the compressor further includes a rotor u...

Embodiment 3

[0122] Example 3, see Figure 7 ,Preferably,

[0123] Described vibrating body comprises described crankshaft 5 and motor rotor 6, and described crankshaft 5 is arranged in the inner hole of described motor rotor 6, and also comprises rotor upper baffle plate 10, and one end of described crankshaft 5 is connected with described rotor. There is a gap between the baffles 10 , and the gap between the one end of the crankshaft 5 and the upper baffle 10 of the rotor forms the airtight cavity. The mass block and the cavity can be used to jointly reduce the vibration and noise of the crankshaft and the motor rotor.

[0124] Preferably,

[0125] The gap is a cylindrical hole, the mass block 1 is a cylinder, and the axial gap e3 between the mass block 1 and the cavity satisfies 0

[0126] combined with Figure 7 In Embodiment 3 of the present invention, the airtight cavity 3 is composed of the upper end surface of the cranksha...

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Abstract

The invention provides a vibration attenuation structure and compressor provided with the same. The vibration attenuation structure comprises a mass block (1) and a vibration body (2); a cavity (3) isformed in the vibration body; the mass block (1) is arranged in the cavity (3) is an interval is formed between the mass block (1) and the cavity (3); and a medium is arranged in the cavity in a filling mode. The mass block (1) can move relative to the vibration body (2) in the cavity (3). The vibration attenuation structure can enable the mass block to be in repeatedly friction with the medium and the vibration body. The vibration energy of the vibration body is converted into heat energy consumption, and therefore resonance can be effectively suppressed and impact energy can be effectivelybuffered, and further vibration noise of the whole compressor can be lowered, and the operation frequency and working condition range of the compressor can be widened.

Description

technical field [0001] The invention belongs to the technical field of compressors, and in particular relates to a vibration damping structure and a compressor with the same. Background technique [0002] The pump body rotor assembly 2 of the existing rolling rotor compressor is a moving part for compressing refrigerant, and there are various dynamic excitation forces such as electromagnetic, pneumatic and mechanical. Various exciting forces excite the vibration of the pump body, which is transmitted to the compressor shell 1 through the solder joint 3, resulting in vibration and noise of the whole compressor, such as figure 1 shown. [0003] At present, the compressor has the following vibration and noise problems, which are difficult to solve and affect the use of the compressor: [0004] 1) When the pump rotor assembly is subjected to an uneven excitation force, bending mode resonance occurs, resulting in a large vibration and noise problem; [0005] 2) Under certain o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C29/00F04C29/06F04C18/356F16F15/02
CPCF04C18/356F04C29/00F04C29/06F16F15/02
Inventor 文智明胡余生张要思张荣婷谷欢欢张金圈
Owner GREE ELECTRIC APPLIANCES INC
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