CN214499418U - High-strength lower cover for vortex type refrigeration compressor - Google Patents

Abstract

The utility model provides a high strength lower cover for vortex formula compressor. The utility model discloses a lower cover body, grommet and casing, the lower cover body includes plane portion and sets up in the kink of plane portion two opposite sides, plane portion's center is the sphere pit, grommet fixed connection is on the outer lane arc surface of this sphere pit, the outside of grommet cup joints the casing. After a lining ring is welded on the inner side of the shell, the stress of a welding seam between the pressure-bearing lower cover and the shell can be reduced, and the mechanical strength of the whole shell of the compressor is improved under the condition of ensuring the height of an oil surface.

Description

High-strength lower cover for vortex type refrigeration compressor

Technical Field

The utility model relates to a compressor technical field especially relates to a high strength lower cover for vortex formula compressor.

Background

When the scroll type refrigeration compressor is applied to the field of refrigeration air conditioners, a certain pressure needs to be borne in the shell, and the integral shell needs to have enough strength during design.

In order to simplify the structure, the support legs and the lower cover are usually made into an integrated lower cover form at present, and the strength of a welding seam between the lower cover and the shell needs additional measures to guarantee the strength.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned technical problems, a high strength lower cover for a scroll compressor is provided. The utility model discloses a technical means as follows:

the utility model provides a high strength lower cover for vortex formula compressor, includes lower cover body, grommet and casing, the lower cover body includes plane portion and sets up in the kink of plane portion two opposite sides, the center of plane portion is the sphere pit, grommet fixed connection is on the outer lane arc surface of this sphere pit, the outside of grommet cup joints the casing.

Furthermore, the plane part is a regular quadrangle, and through holes are formed in four corners of the plane part.

Further, the shell is fixedly connected to the plane of the plane portion.

The lining ring of the utility model is sleeved on the inner side of the shell and is arranged on the sunken arc surface of the lower cover, and the whole circle of welding is carried out on the inner side of the lining ring along the gap contacted with the lower cover; after the lining ring is additionally arranged, the stress of a welding seam of the shell and the lower cover can be reduced after bearing, and the mechanical strength of the welding seam is ensured under the condition of ensuring the height of an oil surface.

Drawings

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

Fig. 1 is an axial polished surface view of the assembly relationship of the shell, the lining ring and the lower cover of the utility model.

Fig. 2 is a plan view of the assembly relationship of the casing, the lining ring and the lower cover of the present invention.

In the figure: 1. a lower cover body; 2. a housing; 3. a liner ring; 4. a spherical pit; 5. a planar portion; 6. a bending section; 7. a through hole; 8. a shell weld; 9. and (6) backing ring welding seams.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and fig. 2, the present embodiment discloses a high strength lower cover for a scroll compressor, which includes a lower cover body 1, a bushing ring 3, and a housing 2, where the lower cover body includes a planar portion 5 and bending portions 6 disposed on two opposite sides of the planar portion, and the bending portions are downward flanges. The center of the plane part is a spherical pit 4 formed by punching, and the lining ring is fixedly connected to an outer ring arc surface of the spherical pit. The liner ring is a cylindrical thin-wall ring, and the outer diameter of the liner ring is slightly smaller than the inner diameter of the shell. The shell is sleeved outside the lining ring. The shell is a cylindrical thin-wall cylinder, the shell is welded with the lower cover in a girth welding mode after the position of the shell is adjusted, and the shell and the lower cover are welded together to form a shell welding line 8. After the center of the lower cover is punched into a spherical pit, the strength is improved compared with that of a flat plate; and the accommodating space is increased, and the oil level can be reduced to a certain extent under the condition that the height of the shell is not increased. Welding the inner side of the liner ring along a gap in contact with the lower cover for a whole circle, and welding the inner side of the liner ring and the lower cover together to form a liner ring welding seam 9; after the lining ring is additionally arranged, the stress of the welding seam of the shell and the shell of the lower cover can be reduced after bearing, so that the mechanical strength of the welding seam is ensured.

The planar part is a regular quadrangle, and can be a steel plate punched into a quadrangle, and four corners of the planar part are punched through holes 7.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (3)

1. The high-strength lower cover for the scroll refrigeration compressor is characterized by comprising a lower cover body, a lining ring and a shell, wherein the lower cover body comprises a plane portion and bending portions arranged at two opposite sides of the plane portion, the center of the plane portion is a spherical pit, the lining ring is fixedly connected to an outer ring arc surface of the spherical pit, and the shell is sleeved outside the lining ring.

2. The high strength lower cover for a scroll compressor as recited in claim 1, wherein said planar portion is a regular quadrilateral, and four corners of said planar portion are provided with through holes.

3. The high strength lower cover for a scroll compressor of claim 1, wherein the housing is fixedly attached to a plane of the planar portion.

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