CN214403978U

CN214403978U - First-stage silencing cavity structure of rotary vane compressor

Info

Publication number: CN214403978U
Application number: CN202120566058.8U
Authority: CN
Inventors: 刘进; 陶平安; 刘红梅; 段威林
Original assignee: Chongqing Jianshe Automobile Air Conditioning Co ltd
Current assignee: Chongqing Jianshe Automobile Air Conditioning Co ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-10-15
Anticipated expiration: 2031-03-19

Abstract

The utility model discloses a rotary vane compressor one-level amortization chamber structure, the cylinder body subassembly with the connection can be dismantled to the shell, and be located the inside of shell, the inboard of shell is provided with first amortization wall, the cylinder body subassembly with first amortization wall encloses and forms the amortization chamber, the bottom of cylinder body subassembly is provided with first exhaust hole, the side of cylinder body subassembly is provided with the second exhaust hole, first exhaust hole with the second exhaust hole all with amortization chamber intercommunication, through above-mentioned structure, the part that utilizes traditional rotary vane compressor carries out the shape change, forms the amortization chamber need not to increase extra cost, through the amortization chamber carries out the one-level noise elimination, has effectively reduced the pneumatic noise that produces in suction and exhaust work and the flow, has reduced the vibration of the squeaking of compressor and system pipeline.

Description

First-stage silencing cavity structure of rotary vane compressor

Technical Field

The utility model relates to a vehicle air conditioner rotary vane compressor technical field especially relates to a rotary vane compressor one-level noise elimination chamber structure.

Background

After the compression of the gas of the rotary vane compressor of the vehicle air conditioner is finished in the compression chamber, the high-temperature and high-pressure gas is discharged through the exhaust hole of the cylinder body and finally enters the system pipeline to do work circularly. With the continuous improvement of the requirement of people on the comfort of the automobile, the noise limit generated by the compressor is higher and higher, wherein the pneumatic noise is the main noise generated by the compressor in the processes of air suction and exhaust work and flow, and is also one of the main factors causing the squeal of the compressor and the vibration of a system pipeline.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a one-level noise elimination cavity structure of rotary vane compressor aims at solving among the prior art pneumatic noise that the compressor produced in suction and exhaust work and flow, arouses the technical problem of compressor squeal and the vibration of system's pipeline.

In order to achieve the above object, the present invention provides a primary muffling cavity structure of a rotary vane compressor, comprising a housing and a cylinder assembly, wherein the cylinder assembly is detachably connected to the housing and located inside the housing, the inner side of the housing is provided with a first muffling wall, the cylinder assembly and the first muffling wall enclose a muffling cavity, the bottom end of the cylinder assembly is provided with a first exhaust hole, the side surface of the cylinder assembly is provided with a second exhaust hole, both the first exhaust hole and the second exhaust hole are communicated with the muffling cavity, the cylinder assembly comprises a cylinder and a valve, the cylinder is detachably connected to the housing and located inside the housing, the number of the first exhaust holes is two, the first exhaust holes are located at the top end of the cylinder, the number of the valve is two, and the valve is movably connected to the cylinder, and are respectively positioned above the corresponding first exhaust holes.

Wherein, the top of cylinder body is provided with the second amortization wall.

The cylinder body assembly further comprises a front end plate, the front end plate is detachably connected with the cylinder body and is located on the side face of the cylinder body, and a third silencing wall is arranged on one side, close to the cylinder body, of the front end plate.

The cylinder body assembly further comprises a rear end plate, the rear end plate is detachably connected with the cylinder body and located on one side, away from the front end plate, of the cylinder body, and a fourth silencing wall is arranged on one side, close to the cylinder body, of the rear end plate.

Wherein the first sound-deadening wall, the second sound-deadening wall, the third sound-deadening wall and the fourth sound-deadening wall enclose the sound-deadening chamber.

The first exhaust hole penetrates through the second silencing wall to be communicated with the silencing cavity, and the second exhaust hole penetrates through the fourth silencing wall to be communicated with the silencing cavity.

The beneficial effects of the utility model are embodied in: the silencing cavity formed by the first silencing wall, the second silencing wall, the third silencing wall and the fourth silencing wall has a longer length and a large enough equal section relative to the first exhaust hole, the volume of the second exhaust hole is far smaller than that of the silencing cavity, when gas generated by the cylinder body enters the silencing cavity through the first exhaust hole, the section through which the gas passes is suddenly increased to cause sudden change of acoustic impedance in a channel, so that sound waves of the gas cannot pass through the silencing cavity in certain frequency sections, and further, the high-pressure gas generated by the cylinder body is subjected to a first-stage silencing effect, through the structure, the shapes of parts of a traditional rotary vane compressor are changed to form the silencing cavity, additional cost is not required to be increased, and through the silencing cavity, first-stage silencing is performed, so that pneumatic noise generated in gas suction and exhaust work and flow is effectively reduced, the squeal of the compressor and the vibration of the system pipeline are reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of the structure of the first-stage muffling cavity of the vane rotary compressor of the present invention.

Fig. 2 is a sectional view of the structure of the first-stage muffling cavity of the vane rotary compressor of the present invention.

Fig. 3 is a perspective view of the present invention with the outer casing removed.

100-first-stage silencing cavity structure of rotary vane compressor, 1-shell, 2-rear end plate, 3-fourth silencing wall, 4-second exhaust hole, 5-second silencing wall, 6-valve, 7-first silencing wall, 8-third silencing wall, 9-front end plate, 10-first exhaust hole and 11-cylinder body.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 3, the present invention provides a technical solution: a first-stage muffling cavity structure 100 of a rotary vane compressor comprises a shell 1 and a cylinder body assembly, wherein the cylinder body assembly is detachably connected with the shell 1 and is positioned in the shell 1, a first muffling wall 7 is arranged on the inner side of the shell 1, the cylinder body assembly and the first muffling wall 7 are enclosed to form a muffling cavity, a first exhaust hole 10 is formed in the bottom end of the cylinder body assembly, a second exhaust hole 4 is formed in the side face of the cylinder body assembly, the first exhaust hole 10 and the second exhaust hole 4 are both communicated with the muffling cavity, the cylinder body assembly comprises a cylinder body 11 and valves 6, the cylinder body 11 is detachably connected with the shell 1 and is positioned in the shell 1, the number of the first exhaust holes 10 is two, the two first exhaust holes 10 are positioned at the top end of the cylinder body 11, and the number of the valves 6 is two, the two valves 6 are respectively movably connected with the cylinder body 11 and are respectively positioned above the corresponding first exhaust holes 10.

In this embodiment, the muffling cavity has a longer length and a sufficiently large uniform cross section relative to the first exhaust hole 10, and the volume of the second exhaust hole 4 is much smaller than that of the muffling cavity, when the compressor is in operation, gas generated by the cylinder 11 enters the muffling cavity through the first exhaust hole 10, and the cross section through which the gas passes is suddenly increased, so that a sudden change in acoustic impedance is caused in the channel, and sound waves at certain frequencies in the channel along the muffling cavity are not reflected back to the sound source through the muffling cavity.

Further, a second sound deadening wall 5 is provided at the top end of the cylinder block 11.

In the present embodiment, the second silencing wall 5 serves as a lower end surface constituting the silencing chamber.

Further, the cylinder body assembly further comprises a front end plate 9, the front end plate 9 is detachably connected with the cylinder body 11 and is located on the side face of the cylinder body 11, and a third silencing wall 8 is arranged on one side, close to the cylinder body 11, of the front end plate 9.

In the present embodiment, the third silencing wall 8 serves as a right end surface constituting the silencing chamber.

Further, the cylinder body assembly further comprises a rear end plate 2, the rear end plate 2 is detachably connected with the cylinder body 11 and is located on one side, away from the front end plate 9, of the cylinder body 11, and the rear end plate 2 is close to one side of the cylinder body 11 and is provided with a fourth silencing wall 3.

In the present embodiment, the fourth silencing wall 3 serves as a left end surface constituting the silencing chamber.

Further, the first sound-deadening wall 7, the second sound-deadening wall 5, the third sound-deadening wall 8 and the fourth sound-deadening wall 3 enclose the sound-deadening chamber; further, the first exhaust hole 10 penetrates through the second silencing wall 5 to communicate with the silencing cavity, and the second exhaust hole 4 penetrates through the fourth silencing wall 3 to communicate with the silencing cavity.

In the present embodiment, the front end plate 9 and the cylinder block 11 also have corresponding parts in a conventional compressor, and the shape of the parts in the conventional compressor is modified to form the muffling cavity, so that additional production cost is not required to be added in mass production.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. A first-stage muffling cavity structure of a rotary vane compressor is characterized by comprising a shell and a cylinder body assembly, wherein the cylinder body assembly is detachably connected with the shell and is positioned in the shell, a first muffling wall is arranged on the inner side of the shell, the cylinder body assembly and the first muffling wall are enclosed to form a muffling cavity, a first exhaust hole is formed in the bottom end of the cylinder body assembly, a second exhaust hole is formed in the side face of the cylinder body assembly, the first exhaust hole and the second exhaust hole are communicated with the muffling cavity, the cylinder body assembly comprises a cylinder body and valves, the cylinder body is detachably connected with the shell and is positioned in the shell, the number of the first exhaust holes is two, the two first exhaust holes are positioned at the top end of the cylinder body, the number of the valves is two, and the two valves are movably connected with the cylinder body respectively, and are respectively positioned above the corresponding first exhaust holes.

2. The structure of one-stage muffling chamber of rotary vane compressor according to claim 1, wherein said cylinder block is provided at its top end with a second muffling wall.

3. The structure of a first-stage muffling cavity of a rotary vane compressor according to claim 2, wherein said cylinder assembly further comprises a front end plate detachably attached to said cylinder and located at a side surface of said cylinder, and a third muffling wall is provided at a side of said front end plate close to said cylinder.

4. The structure of a first-stage muffling cavity of a rotary vane compressor according to claim 3, wherein said cylinder block assembly further comprises a rear end plate detachably attached to said cylinder block and located on a side of said cylinder block remote from said front end plate, and a fourth muffling wall is disposed on a side of said rear end plate close to said cylinder block.

5. The structure of one-stage muffling chamber of a rotary vane compressor of claim 4, wherein said first, second, third and fourth muffling walls enclose said muffling chamber.

6. The structure of one-stage muffling chamber of rotary vane compressor according to claim 5, wherein said first exhaust port communicates with said muffling chamber through said second muffling wall, and said second exhaust port communicates with said muffling chamber through said fourth muffling wall.