CN212337637U - Upper cylinder cover and compressor - Google Patents

Abstract

The utility model provides an upper cylinder cover go up the cylinder cap and be provided with a n waist type hole along a ring region of its circumference, the regional centre of a circle of ring does go up the central point of cylinder cap, waist type hole includes two relative arc limits to and the concentric arc limit that two relative angles equal, the dot on concentric arc limit does go up the central point of cylinder cap, the width in waist type hole is two distance between the concentric arc limit, the angle in waist type hole does the angle on concentric arc limit, wherein, the angle in waist type hole satisfies:

the width of the waist-shaped hole satisfies the following conditions:

wherein alpha is₁、α₂、α₃、...、α_nThe angle of each waist-shaped hole is respectively, R is the width of each waist-shaped hole, and R is the radius of the upper cylinder cover. The upper cylinder cover can meet the requirement of the compressor on the shaft system strength during operation, can effectively release welding stress and reduces deformation of the pump body part. The utility model provides a include the compressor of upper cylinder cover.

Description

Upper cylinder cover and compressor

Technical Field

The utility model relates to a compressor field, in particular to go up cylinder head and compressor.

Background

According to the existing rotor compressor, an upper cylinder cover is of a spoke structure, waist-shaped holes are formed in the upper cylinder cover in a surrounding mode, basically all pump body fixing structures adopt an upper cylinder cover welding mode, welding of the upper cylinder cover has the advantages of small welding deformation and the like, but if the spoke structure is unreasonable in design, the positions and proportions of the waist-shaped holes are not coordinated, and adverse effects can be generated on the performance of the compressor. Particularly, the waist-shaped hole is too small to release welding stress, so that the deformation degree of the upper cylinder cover after welding is increased; the waist-shaped hole is too large, so that the rigidity of the upper cylinder cover can be reduced, the shafting is further influenced, and the noise, the electromagnetic sound and the like of the whole machine are increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides an upper cylinder cover and compressor for the upper cylinder cover of compressor among the solution prior art easily produces the problem of deformation and reduction compressor shafting intensity on welding the compressor housing.

In order to solve the problems, the utility model provides an upper cylinder cover, n waist-shaped holes are arranged in a circular ring area of the upper cylinder cover along the circumferential direction of the upper cylinder cover, the circle center of the circular ring area is the central point of the upper cylinder cover,

the waist-shaped hole comprises two opposite arc edges and two opposite concentric arc edges with the same angle, the round point of the concentric arc edges is the central point of the upper cylinder cover, the width of the waist-shaped hole is the distance between the two concentric arc edges, the angle of the waist-shaped hole is the angle of the concentric arc edges, wherein,

the angle of the waist-shaped hole satisfies the following conditions:

wherein alpha is₁、α₂、α₃、...、α_nRespectively the angle of each kidney-shaped hole.

Further, the width of the kidney-shaped hole satisfies:

wherein R is the width of the kidney-shaped hole, and R is the radius of the upper cylinder cover.

Further, the number n of the kidney-shaped holes satisfies: n is more than or equal to 4 and less than or equal to 7.

Further, the width of the kidney-shaped holes is equal.

Furthermore, two concentric circular arc edges of the waist-shaped hole are respectively superposed with two edges of the circular ring area.

Further, the angles of the kidney-shaped holes are equal.

Further, the kidney-shaped holes are uniformly and circumferentially distributed in the annular area.

Further, the width of the kidney-shaped hole satisfies: r ═ r₁-r₂，

Wherein r is₁The farthest distance r from the waist-shaped hole to the central point of the upper cylinder cover₂The shortest distance from the waist-shaped hole to the center point of the upper cylinder cover.

In order to solve the above problem, the present invention further provides a compressor, which comprises a main housing and an upper cylinder cover, wherein the main housing is a hollow cylinder, and the upper cylinder cover is installed at one end of the main housing.

Further, the upper cylinder cover is welded and mounted on the main shell.

Therefore, the utility model provides an upper cylinder cover, a plurality of waist type hole on the upper cylinder cover satisfy certain width and angle size, have both satisfied the requirement of compressor operation to the intensity of shafting, can effectual release welding stress again, have reduced the deformation of compressor pump body portion article. The utility model discloses still provide one kind and include the compressor of last cylinder cap.

Drawings

FIG. 1 is a view showing a structure of an upper cylinder head according to an embodiment of the present invention;

the structure comprises a cylinder cover 1, a first kidney-shaped hole 21, a second kidney-shaped hole 22 and a third kidney-shaped hole 23. 24-fourth kidney-shaped hole, 25-fifth kidney-shaped hole, 31-upper cylinder cover central point.

Detailed Description

The upper cylinder cover and the compressor according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

As shown in fig. 1, it is a structural diagram of the upper cylinder cover according to the embodiment of the present invention. N waist-shaped holes are arranged in a circular ring area of the upper cylinder cover 1 along the circumferential direction of the upper cylinder cover, the circle center of the circular ring area is the central point 31 of the upper cylinder cover,

the waist-shaped hole comprises two opposite arc edges and two opposite concentric arc edges with equal angles, the round point of the concentric arc edges is the central point 31 of the upper cylinder cover, the width of the waist-shaped hole is the distance between the two concentric arc edges, the angle of the waist-shaped hole is the angle of the concentric arc edges, wherein,

the angle of the waist-shaped hole satisfies the following conditions:

wherein alpha is₁、α₂、α₃、...、α_nThe angles of the waist-shaped holes are respectively;

in addition, the width of the waist-shaped hole satisfies:

wherein R is the width of the kidney-shaped hole, and R is the radius of the upper cylinder cover 1.

Generally, the number n of kidney-shaped holes may satisfy: n is more than or equal to 4 and less than or equal to 7.

For example, the upper cylinder head 1 of fig. 1 has 5 kidney-shaped holes, including a first kidney-shaped hole 21, a second kidney-shaped hole 22, a third kidney-shaped hole 23, a fourth kidney-shaped hole 24, and a fifth kidney-shaped hole 25. Wherein the angle of the first kidney-shaped hole 21 is alpha₁The angle of the second kidney-shaped hole 22 is alpha₂The angle of the third kidney-shaped hole 23 is alpha₃The angle of the fourth kidney-shaped hole 24 is alpha₄The angle of the fifth kidney-shaped hole 25 is alpha₅. Therefore, the angle of each kidney-shaped hole should satisfy:

in order to improve the stability of the upper cylinder cover 1 and the beauty of the upper cylinder cover 1, the width of the waist-shaped hole of the upper cylinder cover 1 can be equal, preferably, two concentric circular arc edges of the waist-shaped hole are respectively superposed with two edges of the circular ring area. In the present embodiment, the widths of the first kidney-shaped hole 21, the second kidney-shaped hole 22, the third kidney-shaped hole 23, the fourth kidney-shaped hole 24 and the fifth kidney-shaped hole 25 are all r, and all the kidney-shaped holes are equidistant from the upper cylinder head center point 31, wherein the farthest distance from the kidney-shaped holes to the upper cylinder head center point 31 is r₁The shortest distance from the kidney-shaped hole to the central point 31 of the upper cylinder cover is r₂. Therefore, the width of each kidney-shaped hole satisfies: r ═ r₁-r₂。

Similarly, in order to improve the aesthetic property and stability of the upper cylinder cover 1, the angles of the kidney-shaped holes may be equal, preferably, the kidney-shaped holes are uniformly and circumferentially distributed in the annular region.

It should be understood that the upper cylinder head 1 is a cambered surface, and therefore the geometric dimensions such as the width and angle of the kidney-shaped hole and the radius of the upper cylinder head 1 are taken as a reference plane on which the radial direction of the upper cylinder head 1 is located, that is, the radius of the upper cylinder head 1 and the width and angle of the kidney-shaped hole are measured by the projection of the upper cylinder head 1 and all kidney-shaped holes on the reference plane.

The embodiment also provides a compressor. The compressor comprises a main shell (not marked) and an upper cylinder cover 1, wherein the main shell is a hollow cylinder, and the upper cylinder cover 1 is installed at one end of the main shell.

Further, the upper cylinder cover 1 may be welded to the main housing, and generally, the upper cylinder cover 1 and the main housing may be welded by a plurality of welding points.

To sum up, the utility model provides an upper cylinder cover makes upper cylinder cover upper waist type hole satisfy certain size, and the width and the angle in waist type hole are in the scope of predetermineeing promptly. If the size of the waist-shaped hole exceeds a preset range, the rigidity of the upper cylinder cover can be reduced, the strength of a shaft system is further influenced, and overall machine noise and poor electromagnetic sound can be generated; and the size of the waist-shaped hole is lower than the preset range, so that the welding stress cannot be effectively released, and the influence of the welding stress on the motion friction of the pump body is reduced. Therefore, the utility model discloses an upper cylinder cover both can satisfy the requirement of compressor operation to shafting intensity, can effectual release welding stress again, has reduced the deformation of pump body portion article. The utility model discloses still provide one kind and include the compressor of last cylinder cap.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example" or "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. And the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. An upper cylinder cover is characterized in that n waist-shaped holes are arranged in a circular ring area of the upper cylinder cover along the circumferential direction of the upper cylinder cover, the circle center of the circular ring area is the central point of the upper cylinder cover,

the waist-shaped hole comprises two opposite arc edges and two opposite concentric arc edges with the same angle, the round point of the concentric arc edges is the central point of the upper cylinder cover, the width of the waist-shaped hole is the distance between the two concentric arc edges, the angle of the waist-shaped hole is the angle of the concentric arc edges, wherein,

the angle of the waist-shaped hole satisfies the following conditions:

wherein alpha is₁、α₂、α₃、...、α_nRespectively the angle of each kidney-shaped hole.

2. The upper cylinder head as set forth in claim 1, wherein the kidney hole has a width satisfying:

wherein R is the width of the kidney-shaped hole, and R is the radius of the upper cylinder cover.

3. The upper cylinder head as set forth in claim 1 or 2, wherein the number n of kidney holes satisfies: n is more than or equal to 4 and less than or equal to 7.

4. The upper cylinder head as claimed in claim 1 or 2, wherein the kidney holes have the same width.

5. The upper cylinder head according to claim 4, characterized in that the two concentric circular arc edges of the kidney-shaped hole coincide with the two edges of the annular zone, respectively.

6. The upper cylinder head as claimed in claim 1 or 2, wherein the angle of the kidney holes is equal.

7. The upper cylinder head according to claim 6, wherein the kidney-shaped holes are evenly circumferentially distributed in the annular ring area.

8. The upper cylinder head as set forth in claim 2, wherein the kidney hole has a width satisfying: r ═ r₁-r₂，

Wherein r is₁The farthest distance r from the waist-shaped hole to the central point of the upper cylinder cover₂The shortest distance from the waist-shaped hole to the center point of the upper cylinder cover.

9. A compressor comprising a main housing which is a hollow cylindrical body and an upper cylinder head as claimed in any one of claims 1 to 8 mounted to one end of the main housing.

10. A compressor according to claim 9, wherein said upper head is welded to said main housing.

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