CN214464910U

CN214464910U - Novel pumping structure of silence

Info

Publication number: CN214464910U
Application number: CN202120329298.6U
Authority: CN
Inventors: 周灿锐; 罗罡; 王海英
Original assignee: TCL Rechi Huizhou Refrigeration Equipment Co Ltd
Current assignee: TCL Rechi Huizhou Refrigeration Equipment Co Ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-10-22
Anticipated expiration: 2031-02-04

Abstract

The utility model discloses a novel pumping structure of silence, including the cylinder body, set up upper bracket and the undersetting in cylinder body top and below respectively to and pass the transmission shaft that upper bracket and cylinder body are connected, the top of upper bracket is provided with the upper silencer cover, the below of undersetting is provided with down the silencer cover, airtight cavity down forms between undersetting and the lower silencer cover, form the upper plenum between upper bracket and the upper silencer cover, be provided with the cylinder body inlet port on the cylinder body, be equipped with the undersetting exhaust hole on the undersetting, be equipped with exhaust passage on undersetting, cylinder body and the upper bracket, both ends communicate with each other with upper plenum and lower airtight cavity respectively about the exhaust passage, the upper silencer is covered and is provided with the upper silencer exhaust hole. The utility model discloses can play the effect of hindering nature amortization, noise reduction effect is good, can absorb the noise that the pumping produced to reach noise reduction's purpose, improved the quality of compressor and pumping.

Description

Novel pumping structure of silence

Technical Field

The utility model relates to a compressor field, specific theory especially relates to a novel pumping structure of silence.

Background

With the development of science and technology and the improvement of living standard, people pay more and more attention to the quality of life. The most common pollution in life is noise pollution, and noise reduction has important significance for improving the quality of living environment. The compressor is as the heart of air conditioner, also is the noise source of air conditioner simultaneously, and the main noise source in the compressor comes from the pumping, and present compressor pumping structure has the defect that the noise is big because the pumping exhaust mode of current compressor is mostly straight hole upwards exhaust, and the gas that gets into in the cylinder body directly discharges through the valve opening of upper bracket, and the exhaust in-process does not carry out the amortization, leads to the pumping during operation to produce great noise.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the noise is big when current pumping during operation, the utility model provides a novel pumping structure of silence.

The utility model provides a novel pumping structure of silence, includes the cylinder body, sets up upper bracket and the undersetting in cylinder body top and below respectively to and pass the transmission shaft that upper bracket and cylinder body are connected, the top of upper bracket is provided with the upper silencer cover, the below of undersetting is provided with the lower silencer cover, airtight cavity under forming between undersetting and the lower silencer cover, form the upper cavity between upper bracket and the upper silencer cover, be provided with the cylinder body inlet port on the cylinder body, be equipped with the undersetting exhaust hole on the undersetting, be equipped with exhaust passage on undersetting, cylinder body and the upper bracket, both ends communicate with each other with upper cavity and airtight cavity down respectively about the exhaust passage, be provided with the upper silencer exhaust hole on the upper silencer cover, this pumping structure can play the noise cancelling effect, and the noise abatement is effectual.

Optionally, the exhaust passage includes the lower support channel of setting on the lower support, the cylinder body passageway of setting on the cylinder body and the upper support passageway of setting on the upper support, the aperture of cylinder body passageway is greater than the aperture of upper support passageway to still be greater than the aperture of lower support passageway, the vertical central line of lower support passageway, cylinder body passageway and upper support passageway overlaps, and the exhaust passage can play the effect of hindering nature amortization.

Optionally, the bore diameter of the cylinder channel is at least two times larger than that of the upper support channel, and the bore diameter of the cylinder channel is at least two times larger than that of the lower support channel, so that noise is reduced by changing the cross section of the exhaust channel.

Optionally, the aperture of the upper support channel is equal to the aperture of the lower support channel.

Optionally, the lower extreme of cylinder body is equipped with a breach, breach and bottom suspension exhaust hole communicate with each other, and the breach can disperse the air current pressure.

Optionally, the included angle between the lower support exhaust hole and the cross section of the exhaust channel on the same plane is 120-180 degrees, so that the noise reduction effect is improved.

Optionally, an included angle between a connecting line of the air inlet hole of the cylinder body and the midpoint of the exhaust hole of the lower support and the horizontal plane is 120-180 degrees, so that the noise reduction effect is improved.

Optionally, an included angle between the upper silencing cover exhaust hole and the exhaust channel is 80-180 degrees, and the noise reduction effect is improved.

Optionally, the number of the exhaust passages is two, and the number of the exhaust holes of the upper silencing cover is two.

Optionally, the upper silencing cover comprises a plane plate and a protruding portion protruding upwards from the plane plate, and the exhaust hole of the upper silencing cover is formed in the protruding portion, so that the noise reduction effect is improved.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a novel pumping structure of silence can reduce the noise that the pumping during operation produced, and gas is discharged after the undersetting exhaust hole, lower airtight cavity, exhaust passage, upper plenum and upper muffler exhaust hole in proper order from the cylinder body, has increased the length of gas flow path, can change the direction of gas flow, plays the effect of hindering nature amortization, and noise reduction effect is good, can absorb the noise that the pumping produced to reach the purpose of noise reduction, improved the quality of compressor and pumping.

Drawings

Fig. 1 is an exploded schematic view of a novel silent pumping structure provided in an embodiment of the present application;

fig. 2 is a schematic cross-sectional structure diagram of a novel silent pumping structure provided in an embodiment of the present application;

fig. 3 is a schematic perspective view of a cylinder provided in an embodiment of the present application;

fig. 4 is a graph showing the noise contrast between the pumping structure of the present invention and the prior pumping structure.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Referring to the attached drawings 1-3, a novel silent pumping structure comprises a cylinder body 1, an upper support 2 and a lower support 3 which are respectively arranged above and below the cylinder body 1, and a transmission shaft 4 which penetrates through the upper support 2 and is connected with the cylinder body 1, an upper silencing cover 5 is arranged above the upper support 2, a lower silencing cover 6 is arranged below the lower support 3, a lower closed cavity 7 is formed between the lower support 3 and the lower silencing cover 6, an upper cavity 8 is formed between the upper support 2 and the upper silencing cover 5, a cylinder body air inlet 11 is arranged on the cylinder body 1, a lower support exhaust hole 31 is arranged on the lower support 3, an exhaust channel 9 is arranged on the lower support 3, the cylinder body 1 and the upper support 2, the upper end and the lower end of the exhaust channel 9 are respectively communicated with the upper cavity 8 and the lower closed cavity 7, and an upper silencing cover exhaust hole 51 is arranged on the upper silencing cover 5. In some embodiments, there are two exhaust passages 9 and two upper muffler cover exhaust holes 51. The upper silencing cover 5, the upper support 2, the cylinder body 1, the lower support 3 and the lower silencing cover 6 are fixed through bolts.

Specifically, gas enters the cylinder body 1 from the cylinder body air inlet 11, and then is discharged after sequentially passing through the lower support exhaust hole 31, the lower closed cavity 7, the exhaust channel 9, the upper cavity 8 and the upper silencing cover exhaust hole 51, the sound is gradually reduced in the gas flowing process, the noise generated during the final gas discharge is relatively low, and the hole sites are matched with each other to play a silencing role.

Referring to fig. 4, comparing the current compressor that adopts straight line exhaust pumping structure with the adoption the utility model discloses the compressor of pumping structure, detecting the noise vibration average value of 10 compressors respectively, the average value of current compressor is 65.4dBA 9 mu m, the utility model discloses an average value is 60.1dBA 9 mu m, can see out from the figure, the utility model discloses a pumping structure is less than the noise that current pumping structure produced.

A gap 12 is arranged at the lower end of the cylinder body 1, and the gap 12 is communicated with a lower support exhaust hole 31. The gap 12 has the function of dispersing gas pressure, which is beneficial to reducing noise.

The upper sound-absorbing cover 5 comprises a plane plate 52 and a protrusion 53 protruding upwards from the plane plate 52, the upper sound-absorbing cover exhaust hole 51 is arranged on the protrusion 53, the distance from the upper sound-absorbing cover exhaust hole 51 to the exhaust channel 9 is increased, and the sound-absorbing effect is enhanced.

The exhaust passage 9 includes a lower seat passage 91 provided on the lower seat 3, a cylinder passage 92 provided on the cylinder block 1, and an upper seat passage 93 provided on the upper seat 2, the bore diameter of the cylinder block 1 passage is larger than the bore diameter of the upper seat passage 93 and also larger than the bore diameter of the lower seat passage 91, and the longitudinal centerlines of the lower seat passage 91, the cylinder passage 92, and the upper seat passage 93 overlap.

In some embodiments, the bore diameter of the cylinder passage 92 is at least two times larger than the bore diameter of the upper seat passage 93, and the bore diameter of the cylinder passage 92 is at least two times larger than the bore diameter of the lower seat passage 91; the aperture of the upper support channel 93 is equal to the aperture of the lower support channel 91; the upper support channel 93 and/or the lower support channel 91 are/is a cylinder or a circular truncated cone, the cylinder body channel 92 is a cylinder or a bent pipeline structure, and acoustic impedance is changed through abrupt change of the inner section of the exhaust channel 9, so that the purpose of reducing noise is achieved, and the quality of the compressor is improved.

In some embodiments, the included angle between the connecting line of the midpoint of the cylinder body air inlet hole 11 and the midpoint of the lower support exhaust hole 31 and the horizontal plane is 120-180 degrees; the included angle between the lower support exhaust hole 31 and the cross section of the exhaust channel 9 on the same plane with the lower support exhaust hole is 120-180 degrees, the shorter the vertical straight line distance between the lower support exhaust hole 31 and the exhaust channel 9 is, the longer the gas flowing distance and flowing time are, and the better the noise reduction effect is; the included angle between the upper silencing cover exhaust hole 51 and the exhaust channel 9 is 80-180 degrees, the larger the distance between the upper silencing cover exhaust hole 51 and the exhaust channel 9 is, the longer the distance and the flow time of gas flow are, and the better the noise reduction effect is.

The utility model provides a novel pumping structure of silence can reduce the noise that the pumping during operation produced, and gas is discharged after the undersetting exhaust hole, lower airtight cavity, exhaust passage, upper plenum and upper muffler exhaust hole in proper order from the cylinder body, has increased the length of gas flow path, can change the direction of gas flow, plays the effect of hindering nature amortization, and noise reduction effect is good, can absorb the noise that the pumping produced to reach the purpose of noise reduction, improved the quality of compressor and pumping.

In the present invention, unless otherwise expressly stated or limited, the terms "provided", "disposed", "connected", and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a novel pumping structure of silence, includes cylinder body (1), sets up upper bracket (2) and undersetting (3) above cylinder body (1) and below respectively to and pass transmission shaft (4) that upper bracket (2) are connected with cylinder body (1), its characterized in that: the top of upper bracket (2) is provided with upper muffler cover (5), the below of undersetting (3) is provided with lower muffler cover (6), airtight cavity (7) down forms between undersetting (3) and lower muffler cover (6), form upper chamber (8) between upper bracket (2) and upper muffler cover (5), be provided with cylinder body inlet port (11) on cylinder body (1), be equipped with undersetting exhaust hole (31) on undersetting (3), be equipped with exhaust passage (9) on undersetting (3), cylinder body (1) and upper bracket (2), both ends communicate with each other with upper chamber (8) and lower airtight cavity (7) respectively about exhaust passage (9), be provided with upper muffler cover exhaust hole (51) on upper muffler cover (5).

2. A novel silent pumping structure according to claim 1, characterized in that: the exhaust passage (9) comprises a lower support passage (91) arranged on the lower support (3), a cylinder passage (92) arranged on the cylinder body (1) and an upper support passage (93) arranged on the upper support (2), the aperture of the cylinder passage (92) is larger than that of the upper support passage (93) and is also larger than that of the lower support passage (91), and the longitudinal center lines of the lower support passage (91), the cylinder passage (92) and the upper support passage (93) are overlapped.

3. A novel silent pumping structure according to claim 2, characterized in that: the bore diameter of the cylinder passage (92) is at least two times larger than that of the upper support passage (93), and the bore diameter of the cylinder passage (92) is at least two times larger than that of the lower support passage (91).

4. A novel silent pumping structure according to claim 2 or 3, characterized in that: the aperture of the upper support channel (93) is equal to the aperture of the lower support channel (91).

5. A novel silent pumping structure according to claim 1, characterized in that: the lower end of the cylinder body (1) is provided with a notch (12), and the notch (12) is communicated with the lower support exhaust hole (31).

6. A novel silent pumping structure according to claim 1, characterized in that: the included angle between the lower support exhaust hole (31) and the cross section of the exhaust channel (9) located on the same plane is 120-180 degrees.

7. A novel silent pumping structure according to claim 1, characterized in that: and an included angle between a connecting line of the cylinder body air inlet hole (11) and the midpoint of the lower support exhaust hole (31) and the horizontal plane is 120-180 degrees.

8. A novel silent pumping structure according to claim 1, characterized in that: and the included angle between the upper silencing cover exhaust hole (51) and the exhaust channel (9) is 80-180 degrees.

9. A novel silent pumping structure according to claim 1, characterized in that: the number of the exhaust channels (9) is two, and the number of the upper silencing cover exhaust holes (51) is two.

10. A novel silent pumping structure according to claim 1, characterized in that: the upper silencing cover (5) comprises a plane plate (52) and a protruding part (53) protruding upwards from the plane plate (52), and the upper silencing cover exhaust hole (51) is formed in the protruding part (53).