CN114046250B - Resonant cavity assembly and compressor - Google Patents

Resonant cavity assembly and compressor Download PDF

Info

Publication number
CN114046250B
CN114046250B CN202111294447.0A CN202111294447A CN114046250B CN 114046250 B CN114046250 B CN 114046250B CN 202111294447 A CN202111294447 A CN 202111294447A CN 114046250 B CN114046250 B CN 114046250B
Authority
CN
China
Prior art keywords
cylinder
resonant cavity
groove
air guide
sliding sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202111294447.0A
Other languages
Chinese (zh)
Other versions
CN114046250A (en
Inventor
刘华文
阙沛祯
胡艳军
向柳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202111294447.0A priority Critical patent/CN114046250B/en
Publication of CN114046250A publication Critical patent/CN114046250A/en
Application granted granted Critical
Publication of CN114046250B publication Critical patent/CN114046250B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F04C29/061—Silencers using overlapping frequencies, e.g. Helmholtz resonators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The application provides a resonant cavity assembly and a compressor. The resonant cavity component comprises a cylinder, wherein a sliding sheet groove is formed in the cylinder, and the sliding sheet groove is arranged along two axial sides of the cylinder in a sealing mode; the sliding sheet is arranged in the sliding sheet groove and can slide along the radial direction of the air cylinder in a sealing manner, and the first end of the sliding sheet is always positioned in the sliding sheet groove; the first end and the slide sheet groove enclose a resonant cavity; the side wall of the resonant cavity is communicated with an air guide channel, and the air guide channel is communicated with the inside of the air cylinder or the exhaust of the air cylinder. This application adopts the resonant cavity that sliding vane groove and sliding vane constitute to utilize the sliding vane to seal the slip in the sliding vane groove, make this resonant cavity can carry out the volume variable, thereby make the noise cancelling frequency of high-pressure gas can change, widened noise cancelling frequency's scope, reduce compressor noise.

Description

Resonant cavity assembly and compressor
Technical Field
The application belongs to the technical field of compressors, and particularly relates to a resonant cavity assembly and a compressor.
Background
In the rotary compressor, the refrigerant is compressed by the pump body and then discharged from the exhaust port, and great pneumatic noise is generated due to sudden change of the pressure of the refrigerant in the compression and exhaust processes. In order to reduce the aerodynamic noise, a helmholtz resonator is generally provided near the exhaust port, or a muffler of an expansion chamber type is provided around the exhaust port. However, because the structure of the resonant cavity is fixed, the corresponding volume is also fixed, so the muffling frequency of the resonant cavity is fixed, the peak value near the muffling frequency is reduced in the muffling process, and the muffling frequency range is narrow.
Disclosure of Invention
Therefore, the resonant cavity assembly and the compressor can solve the problems that in the prior art, the silencing frequency of the resonant cavity is fixed, the peak value near the silencing frequency is reduced in the silencing process, and the silencing frequency range is narrow.
In order to solve the above problem, the present application provides a resonant cavity assembly, comprising:
the air cylinder is provided with a sliding sheet groove, and the sliding sheet groove is arranged along two axial sides of the air cylinder in a sealing manner;
the sliding sheet is arranged in the sliding sheet groove and can slide along the radial direction of the air cylinder in a sealing manner, and the first end of the sliding sheet is always positioned in the sliding sheet groove; the first end and the slide sheet groove enclose a resonant cavity;
the side wall of the resonant cavity is communicated with an air guide channel, and the air guide channel is communicated with the inside of the air cylinder or the exhaust of the air cylinder.
Optionally, when the air guide channel is communicated with the exhaust of the cylinder, the resonant cavity assembly further includes a flange disposed on one side of the cylinder, the flange is provided with an exhaust port and an air guide hole, the exhaust port is communicated with the interior of the cylinder, and the air guide channel includes the air guide hole.
Optionally, the groove bottom of the slide plate groove is provided with a circular hole along the axial direction of the cylinder, and the hole diameter is d 2; the aperture of the air guide hole is d1, and the requirement that the d1/d2 is more than or equal to 1/2 and less than or equal to 1 is met.
Optionally, a groove is provided between the exhaust port and the air guide hole.
Optionally, the resonant cavity assembly further comprises a partition plate arranged on the other side of the cylinder, the diameter of the partition plate is D1, the diameter of the flange is D2, the distance from the edge of the circular hole to the center of the cylinder is L1, D1 is greater than or equal to L1, and D2 is greater than or equal to L1.
Optionally, an elastic member is disposed in the slide groove to drive the slide to move into the cylinder.
Optionally, a threaded hole and an end cover in threaded connection with the threaded hole are formed in the side wall of the cylinder, and one end of the end cover is abutted to the elastic piece.
Optionally, when the air guide channel is communicated with the inside of the air cylinder, the air cylinder is provided with an air guide groove, and the air guide channel comprises the air guide groove.
Optionally, an inclined notch is formed in the inner wall of the cylinder, and one end of the air guide groove is communicated with the inclined notch.
According to another aspect of the present application, there is provided a compressor comprising a resonant cavity assembly as described above.
The present application provides a resonant cavity assembly, comprising: the air cylinder is provided with a sliding sheet groove, and the sliding sheet groove is arranged along two axial sides of the air cylinder in a sealing manner; the sliding sheet is arranged in the sliding sheet groove and can slide along the radial direction of the air cylinder in a sealing manner, and the first end of the sliding sheet is always positioned in the sliding sheet groove; the first end and the slide sheet groove enclose a resonant cavity; the side wall of the resonant cavity is communicated with an air guide channel, and the air guide channel is communicated with the inside of the air cylinder or the exhaust of the air cylinder.
This application adopts the resonant cavity that sliding vane groove and sliding vane constitute to utilize the sliding vane to seal the slip in the sliding vane groove, make this resonant cavity can carry out the volume variable, thereby make the noise cancelling frequency of high-pressure gas can change, widened noise cancelling frequency's scope, reduce compressor noise.
Drawings
Fig. 1 is a schematic view of an internal structure of a compressor according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a flange according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural view of a cylinder according to an embodiment of the present application;
FIG. 4 is a partially enlarged structural view of the embodiment of the present application in FIG. 1;
FIG. 5 is a partially enlarged another schematic structural view of the embodiment of the present application in FIG. 1;
FIG. 6 is another schematic structural diagram of a cylinder according to an embodiment of the present application;
fig. 7 is a comparison between the compressor of the embodiment of the present application and conventional silencing.
The reference numerals are represented as:
1. a cylinder; 11. an end cap; 12. a slide groove; 121. a circular hole; 13. sliding blades; 14. a spring; 15. a bevel notch; 151. a gas guide groove; 2. a partition plate; 3. a flange; 31. an exhaust port; 32. and air vents.
Detailed Description
Referring collectively to figures 1-7, according to an embodiment of the present application, a resonant cavity assembly, comprises:
the air cylinder 1 is provided with a sliding sheet 13 and a groove 12, and the sliding sheet 13 and the groove 12 are arranged along two axial sides of the air cylinder 1 in a sealing manner;
the sliding sheet 13 is arranged in the sliding sheet 13 groove 12 and can slide along the radial direction of the cylinder 1 in a sealing manner, and the first end of the sliding sheet 13 is always positioned in the sliding sheet 13 groove 12; the first end and the sliding piece 13 groove 12 form a resonant cavity;
the side wall of the resonant cavity is communicated with an air guide channel, and the air guide channel is communicated with the inside of the air cylinder 1 or the exhaust of the air cylinder 1.
This application adopts the resonant cavity that gleitbretter 13 groove 12 and gleitbretter 13 constitute to utilize gleitbretter 13 to seal the slip in gleitbretter 13 groove 12, make this resonant cavity can carry out the volume variable, thereby make the noise cancelling frequency of high-pressure gas can change, widened noise cancelling frequency's scope, reduce compressor noise.
When the resonant cavity is communicated with the inside of the cylinder 1 through the air guide channel, the structure of the flange 3 is not required to be modified; or the resonant cavity is communicated to the periphery of the exhaust port 31 on the flange 3 through an air guide channel, and the cylinder 1 is not provided with a groove structure connected with the oblique cutting port, so that the clearance volume is reduced.
In some embodiments, when the air guide channel is communicated with the exhaust gas of the cylinder 1, the resonant cavity assembly further includes a flange 3 disposed at one side of the cylinder 1, the flange 3 is provided with an exhaust port 31 and an air guide hole 32, the exhaust port 31 is communicated with the inside of the cylinder 1, and the air guide channel includes the air guide hole 32.
The flange 3 is additionally provided with the air guide holes 32, and high-pressure air exhausted from the air exhaust port 31 can be partially introduced into the resonant cavity through the air guide holes 32, so that the purpose of noise reduction is achieved. In this case, the chamfer 15 of the conventional cylinder 1 may not be provided with a groove structure connected with the chamfer, so that the clearance volume of the cylinder 1 can be reduced.
In some embodiments, the bottom of the slot 12 of the sliding sheet 13 is provided with a circular hole 121 along the axial direction of the cylinder 1, and the hole diameter is d 2; the aperture of the air guide hole 32 is d1, and the requirement that the d1/d2 is more than or equal to 1/2 and less than or equal to 1 is met. Or a groove is provided between the exhaust port 31 and the air-guide hole 32.
Preferably, the resonant cavity assembly further comprises a partition plate 2 arranged on the other side of the cylinder 1, the diameter of the partition plate 2 is D1, the diameter of the flange 3 is D2, the distance from the edge of the circular hole 121 to the center of the cylinder 1 is L1, and D1 is more than or equal to L1, and D2 is more than or equal to L1.
In order to ensure the tightness of the circular hole 121 in the slot 12 of the sliding sheet 13, the diameter of the partition plate 2 and the diameter of the flange 3 are increased.
By adopting the structure that the exhaust port 31 of the flange 3 is communicated with the resonant cavity, the volume of the cavity is obviously increased more than that of the resonant cavity of the existing cylinder 1, and the noise reduction effect is more obvious. Resonant frequency
Figure BDA0003336132170000041
Wherein C is the speed of sound, V is the volume of the cavity, C 0 Is a conductivity; and is
Figure BDA0003336132170000042
Where s is the cross-sectional area of the introduction path, l 0 β is a correction coefficient of 0.85 for the length of the introduction path. Due to the reciprocating motion of the sliding piece, the volume V of the cavity is changed, so that the resonance frequency f is continuously changed, the resonance frequency range capable of silencing is wide, and the frequency silencing range is 1000-2000 Hz according to the design of the motion rule of the sliding piece and the size parameters of the resonant cavity.
In some embodiments, the slot 12 of the sliding piece 13 is provided with an elastic member, which drives the sliding piece 13 to move towards the cylinder 1. Or, be equipped with the screw hole on the cylinder 1 lateral wall and with screw hole matching thread connection's end cover 11, 11 one end butts of end cover the elastic component.
An elastic piece is arranged in the groove 12 of the sliding sheet 13, so that the sliding sheet 13 can be always in a state of abutting against the roller; the pump body assembly process can be simplified, and the pump body spring 14 and the sealing cover can be eliminated. The 13 tails of gleitbretter is the high pressure with the 1 combustion gas intercommunication of cylinder, and 13 heads of gleitbretter are well low pressure, can not break away from the roller motion through pressure differential gleitbretter 13.
In some embodiments, when the air guide channel is communicated with the inside of the cylinder 1, the cylinder 1 is provided with an air guide groove 151, and the air guide channel comprises the air guide groove 151.
The air guide channel of the resonant cavity is communicated to the inside of the cylinder 1, and the flange 3 does not need to be provided with the air guide hole 32; the scheme can increase the clearance volume, but the volume of the resonant cavity is variable, so that the purpose of noise reduction can be achieved.
In the concrete structure, be equipped with oblique incision 15 on the cylinder 1 inner wall, air guide groove 151 one end with oblique incision 15 intercommunication.
According to another aspect of the present application, there is provided a compressor comprising a resonant cavity assembly as described above.
Compared with the conventional compressor, the compressor adopting the resonant cavity component structure has the advantage that the frequency point with higher noise elimination amount is caused by the resonance generated by the frequency point, and the resonance frequency range of the resonant cavity of the present application is obviously wider than that of a common resonant cavity, so that the noise elimination effect of the full-frequency section is better than that of the common resonant cavity, as shown in fig. 7.
It is easily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims (7)

1. A resonant cavity assembly, comprising:
the air cylinder (1) is provided with a sliding sheet groove (12), and the sliding sheet groove (12) is arranged along two axial sides of the air cylinder (1) in a sealing manner;
the sliding sheet (13) is arranged in the sliding sheet groove (12) and can slide along the radial direction of the cylinder (1) in a sealing manner, and the first end of the sliding sheet (13) is always positioned in the sliding sheet groove (12); the first end and the slide sheet groove (12) enclose a resonant cavity;
the side wall of the resonant cavity is communicated with an air guide channel, and the air guide channel is communicated with the air cylinder (1) or the exhaust of the air cylinder (1);
when the air guide channel is communicated with exhaust of the cylinder (1), the resonant cavity assembly further comprises a flange (3) arranged on one side of the cylinder (1), an exhaust port (31) and an air guide hole (32) are formed in the flange (3), the exhaust port (31) is communicated with the interior of the cylinder (1), and the air guide channel comprises the air guide hole (32).
2. The resonant cavity assembly of claim 1, characterized in that the groove bottom of the slide groove (12) is provided with a circular hole (121) along the axial direction of the cylinder (1), and the hole diameter is d 2; the aperture of the air guide hole (32) is d1, and the requirement that the d1/d2 is more than or equal to 1/2 and less than or equal to 1 is met.
3. The resonant cavity assembly according to claim 1 or 2, characterized in that a groove is provided between the exhaust port (31) and the gas-conducting hole (32).
4. The resonant cavity assembly of claim 2, further comprising a partition plate (2) disposed at the other side of the cylinder (1), wherein the diameter of the partition plate (2) is D1, the diameter of the flange (3) is D2, the distance from the edge of the circular hole (121) to the center of the cylinder (1) is L1, and D1 is greater than or equal to L1, and D2 is greater than or equal to L1.
5. The resonant cavity assembly according to claim 1, characterized in that the slide slot (12) is provided with a resilient member for driving the slide (13) to move towards the cylinder (1).
6. The resonant cavity assembly of claim 5, characterized in that the side wall of the cylinder (1) is provided with a threaded hole and an end cap (11) in matching threaded connection with the threaded hole, and one end of the end cap (11) abuts against the elastic member.
7. A compressor comprising a resonant cavity assembly according to any one of claims 1 to 6.
CN202111294447.0A 2021-11-03 2021-11-03 Resonant cavity assembly and compressor Active CN114046250B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111294447.0A CN114046250B (en) 2021-11-03 2021-11-03 Resonant cavity assembly and compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111294447.0A CN114046250B (en) 2021-11-03 2021-11-03 Resonant cavity assembly and compressor

Publications (2)

Publication Number Publication Date
CN114046250A CN114046250A (en) 2022-02-15
CN114046250B true CN114046250B (en) 2022-09-16

Family

ID=80206983

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111294447.0A Active CN114046250B (en) 2021-11-03 2021-11-03 Resonant cavity assembly and compressor

Country Status (1)

Country Link
CN (1) CN114046250B (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB578419A (en) * 1942-11-24 1946-06-27 Helge Fabian Rost Frequency stabilising means
BR8800513A (en) * 1988-02-04 1989-09-12 Brasil Compressores Sa HIGH-FREQUENCY NOISE SILENCING CAMERA IN ROTARY HERMETIC COMPRESSORS
CN201858158U (en) * 2010-11-03 2011-06-08 上海日立电器有限公司 Noise-damping hole structure for realizing variable volume of noise-damping cavity through blade with noise-damping slot
EP2873864B1 (en) * 2012-06-26 2020-09-09 Panasonic Intellectual Property Management Co., Ltd. Rotary compressor
CN104179687A (en) * 2014-07-30 2014-12-03 珠海格力电器股份有限公司 Rotary compressor noise reduction structure and rotary compressor with the same
CN105604940A (en) * 2016-03-04 2016-05-25 广东美芝制冷设备有限公司 Multi-cylinder rotating compressor and refrigeration system with same
CN106917749A (en) * 2017-03-27 2017-07-04 广东美芝制冷设备有限公司 Rotary compressor and the freezing cycle device with it
CN106870373B (en) * 2017-03-27 2019-09-06 广东美芝制冷设备有限公司 Rotary compressor and refrigerating circulatory device with it
CN111412141B (en) * 2020-03-26 2022-08-23 广东美芝制冷设备有限公司 Rotary compressor and refrigeration cycle device

Also Published As

Publication number Publication date
CN114046250A (en) 2022-02-15

Similar Documents

Publication Publication Date Title
KR20000050706A (en) Discharge muffler for a sealed rotary compressor
CN112196801B (en) Pump body muffler, pump body subassembly and compressor
JP2013241851A (en) Gas compressor
CN215595841U (en) Compressor and refrigerating and heating equipment
CN216554388U (en) Pump body subassembly, compressor, air conditioner
CN114046250B (en) Resonant cavity assembly and compressor
JP2012167584A (en) Hermetic compressor
CN112177887A (en) Exhaust silencing structure and compressor
CN107605729B (en) Pump body assembly and compressor
KR20170025530A (en) Resonator for vehicle
CN113389733A (en) Silencer and compressor
CN216044402U (en) Cylinder, compressor and air conditioner
CN216518627U (en) Pump body assembly, compressor and air conditioner with same
CN218376913U (en) Noise reduction flange, pump body assembly and compressor
CN216044401U (en) Pump body assembly and rotary fluid compression device
CN215805199U (en) Pump body amortization subassembly, pump body subassembly and compressor
CN111720326A (en) Novel swing rotor compressor with low-pressure cavity in shell
CN111059056A (en) Pump body assembly, rotary compressor and air conditioner
CN220705946U (en) Noise elimination structure and compressor
CN214944961U (en) Compressor pump subassembly, compressor and electrical apparatus
CN113864197B (en) Pump body structure, compressor and air conditioner
CN114087184A (en) Pump body assembly, compressor and air conditioner with same
CN113803253A (en) Pump body assembly and rotary fluid compression device
CN212318293U (en) Cylinder, compressor and air conditioner with resonance noise elimination
CN221033140U (en) Pump body structure of compressor and compressor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant