CN114263602A

CN114263602A - Scroll compressor structure

Info

Publication number: CN114263602A
Application number: CN202111526243.5A
Authority: CN
Inventors: 卢诚; 张瑞橙; 沈艺
Original assignee: Shanghai Highly New Energy Technology Co Ltd
Current assignee: Shanghai Highly New Energy Technology Co Ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-04-01

Abstract

The invention discloses a scroll compressor structure, comprising: preceding shell and quiet dish, preceding shell and quiet dish lid close the setting, enclose synthetic high-pressure chamber between preceding shell and the quiet dish, are provided with a counter bore on the preceding shell, and the fastener has been buried underground to the counter bore inside, and the fastener is used for preceding shell and quiet dish fixed connection, still is provided with the uninstallation valve in the counter bore, and the filtering runner has been seted up to the lateral wall of counter bore, and the filtering runner communicates the inner chamber of high-pressure chamber and counter bore, and the inner chamber of counter bore still communicates with the inner chamber of uninstallation valve. The structure improves the integral mode of the high-pressure cavity on the premise of ensuring light weight, and avoids resonance, thereby strengthening the rigidity of the integral structure, greatly reducing high-frequency airflow sound and improving the sound quality of the compressor. In addition, the invention can also improve the rigidity and the service life of the compressor and save the processing cost of the process.

Description

Scroll compressor structure

Technical Field

The invention relates to the technical field of compressors, in particular to a scroll compressor structure.

Background

In the actual working and exhausting process of the compressor, the natural mode of the body structure is excited and resonates (for example, the rigidity of the front shell surface is poor or the modal resonance of the whole structure of the front shell static disc) so that harsh high-frequency airflow noise is generated on the exhaust side of the compressor.

Disclosure of Invention

In view of the above problems in the prior art, it is an object of the present invention to provide a scroll compressor structure.

The specific technical scheme is as follows:

a scroll compressor structure, consisting essentially of: a front shell and a stationary disc;

the front shell and the static disc cover are arranged in a closed mode, a high-pressure cavity is enclosed between the front shell and the static disc, a counter bore is formed in the front shell, a fastener is buried in the counter bore, the fastener is used for fixedly connecting the front shell and the static disc, an unloading valve is further arranged in the counter bore, a filtering flow channel is formed in the side wall of the counter bore, the filtering flow channel is communicated with the high-pressure cavity and the inner cavity of the counter bore, and the inner cavity of the counter bore is communicated with the inner cavity of the unloading valve.

In one of the above scroll compressor constructions, there is further provided the feature that the counterbore is provided at a first-order mode vibration location of the front shell.

In one of the above scroll compressor constructions, there is further the feature that the unloader valve is spaced a predetermined distance from the fastener.

In one of the above scroll compressor arrangements, there is further provided the feature that the unloader valve is threadably connected to the front shell at one end thereof facing the fastener, and the other end of the unloader valve is sealingly connected to the front shell.

In one of the above scroll compressor arrangements, further characterized in that the unloader valve is a generally stepped post comprising a threaded section and a head section, the threaded section having a diameter smaller than the diameter of the head section;

the counter bore is arranged to be a stepped hole, the stepped hole comprises a first hole and a second hole, the diameter of the first hole is smaller than that of the second hole, and the first hole is close to the static disc;

the screw thread section with first hole threaded connection, head part or whole are located the second is downthehole, the ladder face that the uninstallation valve has with the step face card that the counter bore has is equipped with the sealing washer.

In one of the above scroll compressor constructions, there is further provided the feature that the unloading valve has an internal cavity extending through the threaded section and the head section.

In the scroll compressor structure, the first hole has a shell surface abutting against the stationary disc.

In one of the above scroll compressor constructions, there is further provided the feature that the stationary plate has a high pressure discharge port communicating with the high pressure chamber.

In one of the above scroll compressor constructions, there is also the feature that the fasteners are screws.

The positive effects of the technical scheme are as follows:

according to the scroll compressor structure, the counter bore is formed in the front shell, the fastener and the load relief valve are arranged in the counter bore, the filtering flow passage is formed in the side wall of the counter bore and is communicated with the high-pressure cavity and the inner cavity of the counter bore, and the inner cavity of the counter bore is also communicated with the inner cavity of the load relief valve. In addition, the invention can also improve the rigidity and the service life of the compressor and save the processing cost of the process.

Drawings

FIG. 1 is a schematic structural view of a scroll compressor arrangement provided by the present invention;

FIG. 2 is a cross-sectional structural schematic view of the scroll compressor arrangement provided by the present invention;

fig. 3 is a partial structural diagram of fig. 2.

In the drawings: 1. a front housing; 11. a counter bore; 111. a first hole; 112. a second hole; 113. a filtering flow channel; 114. an inner cavity of the counterbore; 2. a stationary disc; 21. a high pressure vent; 3. a high pressure chamber; 4. a fastener; 5. a relief valve; 51. a threaded segment; 52. a head portion; 53. an inner chamber of the relief valve; 6. and (5) sealing rings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below by way of embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 3, the present invention discloses a scroll compressor structure, which includes: a front shell 1 and a static disc 2.

Specifically, preceding shell 1 and quiet dish 2 lid set up, enclose synthetic high pressure chamber 3 between preceding shell 1 and the quiet dish 2, and quiet dish 2 has high-pressure gas vent 21, and high-pressure gas vent 21 communicates with high pressure chamber 3. In the working process of the compressor, a high-pressure gas refrigerant (refrigerant, also called snow, is a medium substance for completing energy conversion in various heat engines) is discharged from a high-pressure exhaust port 21 of the static disc 2 and enters a high-pressure cavity 3 between the front shell 1 and the static disc 2.

The front shell 1 is provided with a counter bore 11, a fastener 4 is embedded in the counter bore 11, and the fastener 4 is used for fixedly connecting the front shell 1 and the static disc 2. Optionally, the fastener 4 is a screw.

A relief valve 5 is also disposed in the counterbore 11.

One end of the load relief valve 5 facing the fastening piece 4 is in threaded connection with the front shell 1, and the other end of the load relief valve 5 is in sealing connection with the front shell 1.

Specifically, in the present embodiment, the relief valve 5 is a stepped column as a whole, and includes a threaded section 51 and a head 52, the threaded section 51 has a diameter smaller than that of the head 52, wherein the threaded section 51 is close to the stationary disc 2;

the counter bore 11 is provided as a stepped bore including a first bore 111 and a second bore 112, the diameter of the first bore 111 being smaller than the diameter of the second bore 112, wherein the first bore 111 is close to the stationary disc 2;

the threaded section 51 is in threaded connection with the first hole 111, and optionally, the shell surface of the first hole 111 is attached to the static disc 2. The head 52 is partially or fully located within the second bore 112. For example, in the present embodiment, the head 52 is higher than the second bore 112 of the counterbore 11, and the head 52 is partially located within the second bore 112.

The side wall of the counterbore 11 is provided with a filtering flow passage 113, the filtering flow passage 113 is communicated with the high-pressure cavity 3 and an inner cavity 114 of the counterbore 11, and the inner cavity 114 of the counterbore 11 is also communicated with the inner cavity 53 of the relief valve 5.

Optionally, in this embodiment, the internal cavity 53 of the relief valve 5 extends through the threaded section 51 and the head 52.

Optionally, in this embodiment, the relief valve 5 is spaced a predetermined distance from the fastener 4. The space between the relief valve 5 and the fastener 4 is the inner cavity 114 of the counterbore 11.

The high-pressure cavity 3 is communicated with the inner cavity 114 of the counter bore 11 through the filtering flow channel 113, the inner cavity 114 of the counter bore 11 is communicated with the inner cavity 53 of the relief valve 5, the refrigerant enters the high-pressure cavity 3 with a large diameter from the high-pressure exhaust port 21 with a small diameter, the flow speed of the turbulent high-pressure refrigerant is reduced and buffered, if the rigidity of the shell of the front shell 1 at the moment is poor, the inherent mode of the refrigerant is excited by the high-pressure refrigerant which is rushed into the high-pressure cavity 3 and then is beated on the inner walls of the front shell 1 and the static disc 2, the overall structural design and the monomer cost requirement of the compressor are considered, and the front shell 1 does not have high rigidity performance. According to the invention, the counter bore 11 is arranged on the front shell 1, and the front shell 1 and the static disc 2 are connected through the fastening piece 4, so that resonance can be avoided while the mode is improved, and the rigidity of the whole structure is enhanced. Meanwhile, the relief valve 5 is arranged in the counter bore 11 and above the fastening piece 4 (above in fig. 2), the space of the counter bore 11 is utilized to the maximum extent, and the inner cavity of the relief valve 5, the inner cavity of the counter bore 11 and the filtering flow channel 113 form a relief channel, so that modal high-frequency airflow noise of the front shell 1 is reduced. The structure has little influence on the whole depth and volume of the high-pressure cavity 3, so that the problem of regeneration noise can not occur. In addition, the inner cavity 114 of the counter bore 11 is connected with the high-pressure cavity 3 through a fine filtering flow passage 113, and high-pressure refrigerant flows into the inner cavity 114 of the counter bore 11 and the load relief valve 5 through the fine filtering flow passage 113, so that instant high-pressure fluctuation can be filtered, and the effect of preventing load relief by mistake is achieved. The structure can also save the processing technology of punching and installing the load relief valve 5 at other positions of the front shell 1, and save the processing technology brought by improving high-frequency noise.

Preferably, the stepped surface of the relief valve 5 and the stepped surface of the counter bore 11 are clamped with the sealing ring 6. The sealing between the load relief valve 5 and the counter bore 11 is realized through the sealing ring 6, so that the high-pressure refrigerant can smoothly flow into the inner cavity of the load relief valve 5, and the leakage is avoided.

Preferably, in the present embodiment, the counter bore 11 is disposed at a first-order mode vibration position of the front shell 1, so as to improve the mode and avoid resonance, thereby enhancing the rigidity of the whole structure.

According to the invention, the counter bore 11 is arranged on the front shell 1, the fastener 4 and the load relief valve 5 are arranged in the counter bore 11, the side wall of the counter bore 11 is provided with the filtering flow passage 113, the filtering flow passage 113 is communicated with the high-pressure cavity 3 and the inner cavity of the counter bore 11, and the inner cavity of the counter bore 11 is also communicated with the inner cavity of the load relief valve 5, so that the integral mode of the high-pressure cavity 3 is improved on the premise of ensuring light weight, resonance is avoided, the integral structure rigidity is strengthened, the high-frequency airflow sound is greatly reduced, and the sound quality of the compressor is improved. In addition, the invention can also improve the rigidity and the service life of the compressor and save the processing cost of the process.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A scroll compressor structure, comprising: a front shell and a stationary disc;

2. The scroll compressor arrangement of claim 1, wherein the counterbore is disposed at a first order modal vibration location of the front shell.

3. The scroll compressor arrangement of claim 1, wherein the unloader valve is spaced a predetermined distance from the fastener.

4. The scroll compressor arrangement of claim 1, wherein one end of the unloader valve toward the fastener is threadably connected to the front shell and the other end of the unloader valve is sealingly connected to the front shell.

5. The scroll compressor arrangement of claim 4, wherein the unloader valve is a generally stepped post including a threaded section and a head section, the threaded section having a diameter smaller than a diameter of the head section;

6. The scroll compressor arrangement of claim 5, wherein an internal cavity of the unloader valve extends through the threaded section and the head portion.

7. The scroll compressor arrangement of claim 5, wherein a shell surface of the first bore abuts the stationary disc.

8. The scroll compressor arrangement of any one of claims 1 to 7, wherein the stationary disc has a high pressure discharge port, the high pressure discharge port communicating with the high pressure chamber.

9. The scroll compressor structure of claim 8, wherein the fasteners are screws.