CN207740134U - Exhaust silencing assembly and compressor provided with same - Google Patents

Exhaust silencing assembly and compressor provided with same Download PDF

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Publication number
CN207740134U
CN207740134U CN201721420281.1U CN201721420281U CN207740134U CN 207740134 U CN207740134 U CN 207740134U CN 201721420281 U CN201721420281 U CN 201721420281U CN 207740134 U CN207740134 U CN 207740134U
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CN
China
Prior art keywords
gasket
silencing
cavity
compressor
exhaust
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Active
Application number
CN201721420281.1U
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Chinese (zh)
Inventor
邹志锋
孙士杰
卢俊
贾延旭
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Changhong Huayi Compressor Co Ltd
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HUAYI COMPRESSOR CO Ltd
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Priority to CN201721420281.1U priority Critical patent/CN207740134U/en
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  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The utility model discloses an exhaust silencing component applied to a compressor, which comprises a silencing cavity, wherein the silencing cavity is connected with a crankcase, the upper end of the silencing cavity is provided with a sealing cover plate and an exhaust returning pipe, a gasket is arranged in the silencing cavity, the inner wall of the silencing cavity is provided with a groove or a thread, and the gasket is matched with the groove or the thread in the silencer cavity to divide the silencing cavity into two or more expansion cavities with different volumes; the expansion cavities are connected in series, the gasket is provided with a gas circulation hole, a vent hole on the crankcase is communicated with a first cavity in the expansion cavities, and the exhaust return pipe is communicated with a last cavity in the expansion cavities; the silencing assembly can realize silencing of a plurality of expansion cavities or resonance cavities on the premise that the crankcase does not occupy the inner space of the shell.

Description

A kind of exhaust noise silencing component and the compressor for installing the exhaust noise silencing component
Technical field
The utility model is related to compressor field, more particularly to a kind of exhaust noise silencing component and the exhaust noise silencing component is installed Compressor.
Background technology
Small enclosed reciprocating compressor be it is a kind of in refrigerator, refrigerator system for being set to what refrigerant was compressed It is standby.With the improvement of living standards, people are also higher and higher to the noise requirements of refrigerator, the noise of compressor directly affects system Noise level.Exhaust gas pulses, the exhaust noise of compressor are the principal element for causing compressor noise again simultaneously.
At present common small-sized totally-enclosed formula reciprocating compressor structure it include crankcase, the back-shaped tube assembly of exhaust, piston, Connecting rod, bent axle.One or two silencing cavity is provided with by casting wherein on crankcase, passes through screw rod and sealing cylinder cap in silencing cavity Sealing.Because of the demand of compressor miniaturization, compressor is used to place the space limitation of crankcase, the noise reduction on usual crankcase Only there are one to two, exhaust noise and exhaust gas pulses improvement are limited chamber, and exhaust noise silencing chamber has improvement needs, although can To reduce gas vent noise and exhaust gas pulses to a certain degree, but silencing cavity number limits, can not multiband significantly improve row Gas noise.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of exhaust noise silencing component and the exhaust noise silencing group is installed The compressor of part can realize that multiple expansion cavities or resonator disappear under the premise of not increasing crankcase and occupying enclosure interior space Sound, to solve the above-mentioned many defects caused by the prior art.
To achieve the above object, the utility model provides technical solution below:A kind of exhaust applied to compressor disappears Sound component, which includes silencing cavity, which is connected with crankcase, and upper end is equipped with close in the silencing cavity Cover plate and exhaust back-shaped pipe, the silencing cavity is internally provided with gasket, and the inner wall of silencing cavity is equipped with groove or screw thread, gasket with disappear Silencing cavity is divided into the expansion cavity of two or more not co-contents by sound device intracavitary groove or screw-thread fit;It is gone here and there between expansion cavity Join, gas communication hole is provided on the gasket, the gas vent on crankcase is connected to the first chamber in expansion cavity, is vented back-shaped pipe Be connected to last chamber in expansion cavity, gas by exhausted by crankcase hole, by gas communication hole by each expansion cavity with And exhaust back-shaped pipe forms a completion exhaust passage.
Preferably, the gasket is horizontally mounted or vertically-mounted relative to silencing cavity relative to silencing cavity
Preferably, the gasket is spring steel, and the elasticity of Y shapes or arch is provided in gasket and silencing cavity groove mating edge Design is interference fitted, the spacer thickness >=0.5mm convenient for gasket edge and groove elastic.
Preferably, the seal cover board center is provided with mounting hole, and silencing cavity bottom is equipped with thread groove, screw in center It is threadedly coupled with thread groove across seal cover board so that cover board is mutually fixed with silencing cavity;When gasket is horizontally mounted, gasket is at center Position is provided with mounting hole, and screw passes through seal cover board and gasket to be threadedly coupled with thread groove.
Preferably, the gas vent can be one or more, and it is back-shaped that the total circulation area D1 of gas vent is more than or equal to exhaust Bore D3.
Preferably, when the gasket is horizontally mounted, said spacer mounting bores outer diameter D 2, the installation of 1. seal cover board of gas vent outer diameter D Hole outer diameter D 4 is vented back-shaped bore D3 and then meets D2-D4+D1 >=D3.
Preferably, the gasket can be rectangular, circle or other shapes, can be designed with the elasticity such as fovea superior, wave.
A kind of reciprocating compressor, including the motor and compression mechanism that are arranged in shell, motor-driven compressor structure, electricity Machine includes stator and rotor;Compression mechanism includes crankcase, piston, bent axle and valve group component, further includes disappearing for compressor Sound component, wherein silencing cavity are arranged on crankcase.
It is using the advantageous effect of above technical scheme:The reciprocating compressor of the utility model structure and applied to compression The exhaust noise silencing component of machine can realize multiple expansion cavities or total under the premise of not increasing crankcase and occupying enclosure interior space Tymapanum noise reduction, while multistage throttling may be implemented, exhaust gas pulses are reduced, and expansion cavity, the organ for resonance of co-content can not To reduce multiband noise well.
Description of the drawings
Fig. 1 is the structural schematic diagram of prior art compressor;
Fig. 2 is the vertical view of prior art compressor;
Fig. 3 is the structural schematic diagram that gasket is placed vertically;
Fig. 4 is the sectional view that gasket is placed vertically;
Fig. 5 is the horizontal positioned structural schematic diagram of gasket;
Fig. 6 is the horizontal positioned sectional view of gasket;
Fig. 7 is the sectional view at silencing cavity mounting groove;
Fig. 8 is the gasket construction schematic diagram being horizontally mounted.
Wherein, 1-- crankcases, 2-- exhausts back-shaped pipe, 3-- pistons, 4-- connecting rods, 5-- bent axles, 6-- screw rods, 7-- noise reductions Chamber, 8 seal cover boards, 9-- expansion cavity a, 10-- expansion cavity b, 11-- gasket, 12-- expansion cavity c, 13-- expansion cavity d, 15-- gases Recirculation hole, 71-- are horizontally mounted the vertically-mounted groove of groove, 72--.
Specific implementation mode
The preferred embodiment that according to the present invention will be described in detail below with reference to the accompanying drawings.
Small-sized totally-enclosed formula reciprocating compressor structure common at present is as depicted in figs. 1 and 2 comprising crankcase 1, exhaust Back-shaped pipe 2, piston 3,4 amount of money bent axle 5 of connecting rod.One or two silencing cavity 7, noise reduction are wherein provided with by casting on crankcase 1 Pass through 6 screw rods and 8 sealing cylinder cap sealings on chamber.Because the demand of compressor miniaturization, compressor are used to place the sky of crankcase Between limit, only there are one to two, exhaust noise and exhaust gas pulses improvement are limited the silencing cavity on usual crankcase, row Gas silencing cavity has improvement needs.
In conjunction with Fig. 1-Fig. 8, a kind of exhaust noise silencing component applied to compressor, which includes silencing cavity 7, The silencing cavity 7 is connected with crankcase 1, and upper end is equipped with seal cover board 8 and exhaust back-shaped pipe 2, the noise reduction in the silencing cavity 7 Chamber 7 is internally provided with gasket 11, and the inner wall of silencing cavity 7 is equipped with groove or screw thread, and gasket 11 is matched with 7 intracavitary groove of muffler or screw thread Close the expansion cavity that silencing cavity is divided into two or more not co-contents;It connects between expansion cavity, gas is provided on the gasket 11 Body recirculation hole 15, the gas vent on crankcase 1 are connected to the first chamber in expansion cavity, exhaust back-shaped pipe 2 in expansion cavity most Latter chamber connection, gas pass through each expansion cavity and exhaust back-shaped pipe by exhausted by crankcase hole, by gas communication hole 15 Form a completion exhaust passage.
Gasket is spring steel, and the elasticity that Y shape or arch are provided in gasket 11 and 7 groove mating edge of silencing cavity designs, and is convenient for Gasket edge is interference fitted with groove elastic, the spacer thickness >=0.5mm;Gasket can be rectangular, round or other Shape can be designed with the elasticity such as fovea superior, wave;Gas vent can be one or more, and the total circulation area D1 of gas vent is more than etc. In the back-shaped bore D3 of exhaust.
Seal cover board center is provided with mounting hole, and silencing cavity bottom is equipped with thread groove in center, and screw passes through sealing cover Plate is threadedly coupled with thread groove so that cover board is mutually fixed with silencing cavity.
Gasket is horizontally mounted or vertically-mounted relative to silencing cavity relative to silencing cavity.
Wherein, such as Fig. 3, Fig. 4 and Fig. 7, when gasket 11 is vertically-mounted, vertically-mounted groove 72, groove are equipped in silencing cavity 7 Depth meets 0.2mm≤h1≤1mm, and gasket is vertically arranged is divided into expansion cavity a9 and expansion cavity b10 by silencing cavity.
Wherein, such as Fig. 5-Fig. 8, when gasket 11 is horizontally mounted, gasket 11 is provided with mounting hole in center, and screw passes through close Capping plate and gasket are threadedly coupled with thread groove;Be equipped in silencing cavity 7 and be horizontally mounted groove 71, depth of groove meet 0.2mm≤ H2≤1mm, gasket 11 is horizontally disposed to be divided into expansion cavity c12 and expansion cavity d13 by silencing cavity;Said spacer mounting bores outer diameter D 2, row 1. seal cover board mounting hole outer diameter D 4 of stomata outer diameter D, is vented back-shaped bore D3 and then meets D2-D4+D1 >=D3.
A kind of reciprocating compressor, including the motor and compression mechanism that are arranged in shell, motor-driven compressor structure, electricity Machine includes stator and rotor;Compression mechanism includes crankcase, piston, bent axle and valve group component, further includes disappearing for compressor Sound component, wherein silencing cavity are arranged on crankcase.
By being internally provided with groove or screw thread in silencing cavity, match by elastomeric pad and muffler chamber inner groovy or screw thread Close the expansion cavity that silencing cavity is divided into two or more not co-contents;Gas communication hole, bent axle are provided on the elastomeric pad Gas vent on case is connected to the first chamber, and exhaust back-shaped pipe is connected to last chamber, and gas passes through valve group exhaust, exhausted by crankcase Hole, silencing cavity that elastomeric pad separates, gas communication hole, exhaust back-shaped pipe form a completion exhaust passage.By this practicality New design can realize that multiple expansion cavities or resonator disappear under the premise of not increasing crankcase and occupying enclosure interior space Sound, while multistage throttling may be implemented, exhaust gas pulses are reduced, and the expansion cavity, organ for resonance of co-content can be not fine Reduction multiband noise
Above-described is only preferred embodiments of the present invention, it is noted that for the ordinary skill of this field For personnel, without departing from the concept of the present invention, various modifications and improvements can be made, these all belong to In the scope of protection of the utility model.

Claims (8)

1. a kind of exhaust noise silencing component applied to compressor, which includes silencing cavity, the silencing cavity and bent axle Case is connected, which is characterized in that upper end is equipped with seal cover board and exhaust back-shaped pipe in the silencing cavity, is set inside the silencing cavity There are gasket, the inner wall of silencing cavity to be equipped with groove or screw thread, gasket separates silencing cavity with muffler chamber inner groovy or screw-thread fit For the expansion cavity of two or more not co-contents;It connects between expansion cavity, is provided with gas communication hole on the gasket, on crankcase Gas vent be connected to the first chamber in expansion cavity, exhaust back-shaped pipe be connected to last chamber in expansion cavity, gas passes through song Axle box gas vent forms a completion exhaust passage by gas communication hole by each expansion cavity and exhaust back-shaped pipe.
2. the exhaust noise silencing component according to claim 1 applied to compressor, which is characterized in that the gasket relative to Silencing cavity is horizontally mounted or vertically-mounted relative to silencing cavity.
3. the exhaust noise silencing component according to claim 1 applied to compressor, which is characterized in that the gasket is spring Steel, the elasticity that Y shape or arch are provided in gasket and silencing cavity groove mating edge designs, convenient for gasket edge and groove elastic Interference fit, the spacer thickness >=0.5mm.
4. the exhaust noise silencing component according to claim 1 applied to compressor, which is characterized in that in the seal cover board The heart is provided with mounting hole, and silencing cavity bottom is equipped with thread groove in center, and screw is threadedly coupled across seal cover board with thread groove, So that cover board is mutually fixed with silencing cavity;When gasket is horizontally mounted, gasket is provided with mounting hole in center, and screw passes through sealing cover Plate and gasket are threadedly coupled with thread groove.
5. the exhaust noise silencing component according to claim 1 applied to compressor, which is characterized in that the gas vent can be with It is one or more, the total circulation area D1 of gas vent, which is more than or equal to, is vented back-shaped bore D3.
6. the exhaust noise silencing component according to claim 1 applied to compressor, which is characterized in that the gasket level peace When dress, it is then full to be vented back-shaped bore D3 for said spacer mounting bores outer diameter D 2,1. seal cover board mounting hole outer diameter D 4 of gas vent outer diameter D Sufficient D2-D4+D1 >=D3.
7. the exhaust noise silencing component according to claim 1 applied to compressor, which is characterized in that the gasket can be Rectangular, circle or other shapes can be designed with the elasticity such as fovea superior, wave.
8. a kind of compressor, including the motor and compression mechanism that are arranged in shell, motor-driven compressor structure, motor includes fixed Son and rotor;Compression mechanism includes crankcase, piston, bent axle and valve group component, which is characterized in that further includes claim 1-6 Any one of them is used for the noise reduction component of compressor, and wherein silencing cavity is arranged on crankcase.
CN201721420281.1U 2017-10-31 2017-10-31 Exhaust silencing assembly and compressor provided with same Active CN207740134U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721420281.1U CN207740134U (en) 2017-10-31 2017-10-31 Exhaust silencing assembly and compressor provided with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721420281.1U CN207740134U (en) 2017-10-31 2017-10-31 Exhaust silencing assembly and compressor provided with same

Publications (1)

Publication Number Publication Date
CN207740134U true CN207740134U (en) 2018-08-17

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Family Applications (1)

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CN201721420281.1U Active CN207740134U (en) 2017-10-31 2017-10-31 Exhaust silencing assembly and compressor provided with same

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111219313A (en) * 2019-10-16 2020-06-02 杭州钱江制冷压缩机集团有限公司 Refrigeration compressor
CN115355157A (en) * 2022-08-11 2022-11-18 珠海格力电器股份有限公司 Cylinder block structure and compressor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111219313A (en) * 2019-10-16 2020-06-02 杭州钱江制冷压缩机集团有限公司 Refrigeration compressor
CN115355157A (en) * 2022-08-11 2022-11-18 珠海格力电器股份有限公司 Cylinder block structure and compressor
CN115355157B (en) * 2022-08-11 2023-11-14 珠海格力电器股份有限公司 Cylinder block structure and compressor

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CP01 Change in the name or title of a patent holder

Address after: 333000 No. 1 Changhong Avenue, Jingdezhen High-tech Zone, Jiangxi Province (High-tech Development Zone)

Patentee after: Changhong Huayi Compressor Co., Ltd.

Address before: 333000 No. 1 Changhong Avenue, Jingdezhen High-tech Zone, Jiangxi Province (High-tech Development Zone)

Patentee before: Huayi Compressor Co.,Ltd.

CP01 Change in the name or title of a patent holder