CN212690288U

CN212690288U - Compressor lower shell cover and compressor

Info

Publication number: CN212690288U
Application number: CN202021192565.1U
Authority: CN
Inventors: 胡剑; 张静
Original assignee: Shanghai Highly Electrical Appliances Co Ltd
Current assignee: Shanghai Highly Electrical Appliances Co Ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-03-12
Anticipated expiration: 2030-06-24

Abstract

The utility model provides a lower shell cover and a compressor comprising the same, wherein the lower shell cover of the compressor comprises a lower shell cover body, and the lower shell cover body comprises an upper port connected with a compressor shell and a bottom surface deviating from the compressor shell; the boss is of a raised annular structure surrounding the peripheral surface of the lower shell cover body, and the surface of the boss facing the compressor shell is parallel to the end surface of the upper port. The utility model discloses a compressor lower shell cover's outer peripheral face is provided with annular boss, when being connected with compressor housing, can compatible internal diameter the same and various casings that the tolerance is different, reduces because the lower shell cover that the wrong size is close causes the lower shell cover to sink, has guaranteed the height of compressor, reduces the kind of lower shell cover size, is favorable to quality management and control and reduction development cost; meanwhile, foreign matters can be prevented from entering when the annular boss is welded with the compressor shell.

Description

Compressor lower shell cover and compressor

Technical Field

The utility model relates to a compressor field, specifically speaking relates to a cap and compressor under compressor.

Background

The existing compressor shell is divided into a compressor shell component, an upper shell cover component and a lower shell cover, the upper shell cover and the lower shell cover are connected with the shell through carbon dioxide arc welding, and conditions are provided for the internal sealing environment of the compressor shell. In the casing subassembly production process, for guaranteeing that finished product internal diameter size accords with the drawing requirement, in the casing subassembly course of working of taking lower shell cover circumference to weld, need reserve the plastic allowance, so the casing subassembly of this state and the casing subassembly contrast of no lower shell cover welding have the internal diameter difference, but these two kinds of states naked eyes are difficult to discern. At present, the three point boss structure lower shell lid of some adoption carries out the plane location with three little boss, later carries out the circumference welding, if can cause the risk that the lower shell lid sinks and the foreign matter gets into with the lower shell lid that wrong size is close. Therefore, a lower shell cover compatible with different tolerance ranges needs to be designed, quality control is facilitated, and cost reduction is facilitated.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present invention and therefore may include information that does not constitute prior art known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

To the problem among the prior art, the utility model aims to provide a shell cover and compressor under compressor, this shell cover under compressor can compatible multiple internal diameter the same and the different various casings of tolerance, can reduce the kind of shell cover size under, is favorable to the quality management and control and reduces development cost.

An embodiment of the utility model provides a compressor lower shell cover, include:

the compressor comprises a lower shell cover body, a first sealing ring and a second sealing ring, wherein the lower shell cover body comprises an upper port connected with a compressor shell and a bottom surface deviating from the compressor shell;

the boss is of a raised annular structure surrounding the peripheral surface of the lower shell cover body, and the surface of the boss facing the compressor shell is parallel to the end surface of the upper port.

According to an example of the present invention, the width of the boss is d relative to the outer peripheral surface of the lower cover body, and d is greater than or equal to 0.5 mm.

According to an example of the present invention, the lower case cover body and the boss are integrally formed.

According to an example of the present invention, the boss is obtained by an extrusion process.

According to an example of the present invention, the boss deviates from the surface of the compressor housing and is spherical.

According to an example of the present invention, the boss and the lower cover body are connected by interference fit.

According to an example of the present invention, the height of the compressor lower shell cover is H, the height of the boss to the upper port is H, and H/H is not more than 1/3.

Other embodiments of the present invention further provide a compressor, including the compressor lower shell cover.

According to an example of the present invention, the compressor is a rotary compressor.

The utility model provides a compressor lower shell cover and compressor, the outer peripheral face of this compressor lower shell cover is provided with annular boss, when being connected with the compressor casing, can compatible internal diameter the same and various casings that the tolerance is different, reduce because with wrong lower shell cover that the size is close and cause the lower shell cover to sink, guaranteed the height of compressor, reduce the kind of lower shell cover size, be favorable to quality management and control and reduce development cost; meanwhile, the welding of the annular boss and the compressor shell can avoid foreign matters from entering.

Drawings

Other features, objects, and advantages of the invention will be apparent from the following detailed description of non-limiting embodiments, which proceeds with reference to the accompanying drawings and which is incorporated in and constitutes a part of this specification, illustrating embodiments consistent with this application and together with the description serve to explain the principles of this application. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a perspective view of an upper shell cover of a compressor according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a compressor upper housing cover according to an embodiment of the present invention;

fig. 3 is a sectional view of a compressor upper housing cover according to still another embodiment of the present invention.

Reference numerals

100 lower shell cover body

110 upper port

120 bottom surface

200 boss

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.

Fig. 1 is a perspective view of an upper housing cover of a compressor according to an embodiment of the present invention, specifically, the lower housing cover of the compressor according to the embodiment includes:

a lower shell body 100, the lower shell body 100 including an upper port 110 connected to a compressor shell and a bottom surface 120 facing away from the compressor shell; feet in the shape of triangular trays and the like can be mounted at the bottom surface 120.

The boss 200 is a raised annular structure surrounding the outer circumferential surface of the lower shell cover body, and the surface of the boss 200 facing the compressor shell is parallel to the end surface of the upper port 110.

Fig. 2 is a cross-sectional view of the upper shell cover of the compressor according to an embodiment of the present invention, wherein the diameter of the lower shell cover is D1, the width of the boss 200 relative to the outer peripheral surface of the lower shell cover body 100 is D, and the diameter of the boss of the lower shell cover is D2, D2 is D1+ 2D. In some embodiments, d ≧ 0.5 mm.

The utility model discloses a compressor lower shell cover's outer peripheral face is provided with annular boss, when being connected with compressor housing, can compatible internal diameter the same and various casings that the tolerance is different, namely the internal diameter is all applicable between D1 and D2, reduces because the lower shell cover that the wrong size is close causes the lower shell cover to sink, has guaranteed the height of compressor, can reduce the kind of lower shell cover size from this, is favorable to quality management and control and reduction development cost; meanwhile, when the compressor shell and the lower shell cover are welded circumferentially, the surface of the boss facing the compressor shell is matched with the shell, and therefore foreign matters can be prevented from entering during welding.

The lower case cover body 200 and the boss 100 may be an integrally formed member. The boss 200 may be obtained by an extrusion process. The extrusion processing technology has the advantages of wide application range, high production flexibility, simple process flow, less equipment investment, low production cost and the like. The compressor lower shell cover with the boss of the integrally-formed part is obtained through an extrusion processing technology, and the integrally-formed part has the characteristic of high strength.

The surface of the boss 200 shown in fig. 2 facing the compressor housing is parallel to the end surface of the upper port 110, and the surface of the boss departing from the compressor housing, which is obtained by the extrusion process, is spherical, so as to form a triangular support structure of the outer side surface of the lower cover, and the structure has higher stability and can better play a role in supporting the compressor housing.

Fig. 3 is a sectional view of an upper shell cover of a compressor according to another embodiment of the present invention, the lower shell cover with a boss can be obtained by interference-fitting the boss 200 with the lower shell cover body 100, and the section of the boss in the interference-fitting method can be similar to a triangle as in fig. 2, so as to improve the supporting strength of the boss.

If the height of the compressor lower shell cover is H, the height from the boss 200 to the upper port 110 is H, and H/H is preferably less than or equal to 1/3.

Other embodiments of the present invention further provide a compressor, including the compressor lower shell cover. The compressor may be a rotary compressor. Specifically, the compressor may include an upper shell cover, a housing, a motor housed within the housing, and a pump body. The pump body includes the compressor cylinder of cylinder body, upper cylinder cap and lower cylinder cap, and upper cylinder cap and lower cylinder cap set up respectively in the both ends of cylinder body, form a compression space that is used for compressing the refrigerant. Still be equipped with the bent axle in the casing, the axis of support assembly location in the casing is passed through to the upper portion of bent axle, and the center of upper cylinder cap and lower cylinder cap is worn to locate by the lower part of bent axle to make whole bent axle be located the axis department of casing. A piston is arranged in a compression space formed by the upper cylinder cover, the lower cylinder cover and the cylinder body, the piston is fixed on the lower portion of the crankshaft and synchronously rotates with the crankshaft, and the crankshaft transmits the rotating force of the motor to the cylinder body so as to compress a refrigerant.

To sum up, the utility model provides a lower shell cover and a compressor comprising the same, the lower shell cover of the compressor comprises a lower shell cover body, the lower shell cover body comprises an upper port connected with the compressor shell and a bottom surface deviating from the compressor shell; the boss is of a raised annular structure surrounding the peripheral surface of the lower shell cover body, and the surface of the boss facing the compressor shell is parallel to the end surface of the upper port. The utility model discloses a compressor lower shell cover's outer peripheral face is provided with annular boss, when being connected with compressor housing, can compatible internal diameter the same and various casings that the tolerance is different, reduces because the lower shell cover that the wrong size is close causes the lower shell cover to sink, has guaranteed the height of compressor, reduces the kind of lower shell cover size, is favorable to quality management and control and reduction development cost; meanwhile, foreign matters can be prevented from entering when the annular boss is welded with the compressor shell.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the apparatus claims may also be implemented by one unit or means in software or hardware. It is to be understood that the terms "lower" or "upper", "downward" or "upward" and the like are used to describe features of the exemplary embodiments with reference to the positions of such features as displayed in the figures.

Claims

1. A compressor lower housing cover, comprising:

2. A compressor lower housing cover according to claim 1, wherein: the width of the boss relative to the peripheral surface of the lower shell cover body is d, and d is more than or equal to 0.5 mm.

3. A compressor lower housing cover according to claim 1, wherein: the lower shell cover body and the lug boss are integrally formed.

4. A compressor lower housing cover according to claim 3, wherein: the boss is obtained through an extrusion processing technology.

5. A compressor lower shell cover according to claim 1, wherein the surface of said boss facing away from said compressor housing is spherically curved.

6. A compressor lower housing cover according to claim 1, wherein: the boss with the inferior valve lid body is connected through interference fit.

7. A compressor lower housing cover according to claim 1, wherein: the height of the compressor lower shell cover is H, the height from the boss to the upper port is H, and H/H is not more than 1/3.

8. A compressor, characterized by comprising a compressor lower shell cover as claimed in any one of claims 1 to 7.

9. The compressor of claim 8, wherein: the compressor is a rotor compressor.