CN214660847U

CN214660847U - Sealing structure for electric compressor

Info

Publication number: CN214660847U
Application number: CN202121016868.2U
Authority: CN
Inventors: 蔡生院; 张雅
Original assignee: Jiangsu Kangpu Ruisen New Energy Technology Co ltd
Current assignee: Jiangsu Kangpu Ruisen New Energy Technology Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2021-11-09
Anticipated expiration: 2031-05-12

Abstract

The utility model relates to a compressor technical field especially relates to a seal structure for electric compressor, including quiet dish bulge, back lid bulge, cylinder body and seal gasket, quiet dish is first cavity and second cavity with cylinder body internal partitioning, and the terminal surface of quiet dish bulge and cylinder body all laminates mutually with the terminal surface of back lid bulge, and the seal gasket clamp is established in the terminal surface of quiet dish bulge and cylinder body all with the laminating department of the terminal surface of back lid bulge. The utility model discloses a setting up of seal gasket carries out radial seal to cylinder body and quiet dish bellying junction, guarantee first cavity and second cavity promptly high-pressure chamber and low pressure chamber between the leakproofness, only need through the control to the seal gasket extrusion force, thereby the packing force of adjustment seal gasket and first sealed face, in order to guarantee good sealed effect, replace the sealed form of the terminal surface hard seal of quiet dish bulge, the terminal surface of cylinder body and back lid bulge among the prior art simultaneously, seal gasket processing is simple and the machining precision is low.

Description

Sealing structure for electric compressor

Technical Field

The utility model relates to a compressor technical field especially relates to a seal structure for motor compressor.

Background

The scroll compressor is a positive displacement compressor, and is widely applied to the fields of industry, agriculture, transportation and the like due to the characteristics of small volume, light weight, small vibration, high efficiency and the like. The gas that the compressor compression was accomplished can enter high pressure chamber then discharge compressor, need guarantee between high pressure chamber and the low pressure chamber sealed, in present scheme, relies on the sealing washer between quiet dish back and the back lid to carry out axial seal between high pressure chamber and the low pressure chamber, but this kind of sealed mode machining precision is higher, and sealed effect is difficult to guarantee. Therefore, how to ensure the sealing effect of the sealing structure for the electric compressor is a technical problem which needs to be solved by the technical personnel in the field at present. In view of the above problems, the present designer is based on the practical experience and professional knowledge that are abundant for many years in engineering application of such products, and is engaged in the application of theory to actively make research and innovation, so as to create a sealing structure for an electric compressor, which is more practical.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: how to ensure the sealing effect of the sealing structure for the electric compressor.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a seal structure for electric compressor, includes quiet dish bulge, back lid bulge, cylinder body and seal gasket, and quiet dish is first cavity and second cavity with cylinder body internal partitioning, the terminal surface of quiet dish bulge and cylinder body all laminates with the terminal surface of back lid bulge mutually, the seal gasket clamp is established the laminating department of the terminal surface of quiet dish bulge and cylinder body all with the terminal surface of back lid bulge.

Further, the cylinder body has the first sealed face of laminating with the back lid, back lid bulge have with the sealed face of second of quiet dish bulge and cylinder body laminating, the radial binding face of quiet dish bulge and back lid bulge is the sealed face of third, the axial binding face of quiet dish bulge and back lid bulge is the fourth sealed face, the quiet dish bulge with the axial binding face of cylinder body is the fifth sealed face.

Furthermore, a step surface is arranged on the second sealing surface, and the height of one side, close to the static disc, of the step surface is higher.

Furthermore, one side of the sealing gasket, which is close to the protruding part of the rear cover, is provided with a protruding part, and the protruding part and one side of the second binding surface, which is close to the static disc, are bound together.

Further, it is characterized in that: and a placing groove is formed in the fourth sealing surface in the circumferential direction, and a sealing ring is arranged in the placing groove.

Furthermore, a mounting groove is formed in the fifth sealing surface in the circumferential direction, and a sealing ring is arranged in the mounting groove.

Further, the sealing gasket is provided with a protruding structure.

Further, the sealing gasket is fixed by pressing the rear cover projection and the first sealing surface.

Furthermore, a through hole is formed in the sealing gasket, and the fastener penetrates through the protruding portion of the rear cover and the through hole to be connected with the cylinder body.

The utility model has the advantages that:

the utility model discloses a setting up of seal gasket carries out radial seal to cylinder body and quiet dish bellying junction, guarantees first cavity and second cavity and is the leakproofness between high-pressure chamber and the low pressure chamber, only needs through the control to the seal gasket extrusion force to the packing force of adjustment seal gasket and first sealed face, with guaranteeing good sealed effect replaces simultaneously among the prior art the terminal surface of quiet dish bulge, cylinder body and the hard sealed form of terminal surface of back lid bulge, seal gasket processing is simple and the machining precision is low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the connection between the rear cover and the cylinder body of the electric compressor of the present invention.

Fig. 2 is the utility model discloses well motor compressor is with seal structure's installation schematic diagram.

Fig. 3 is an enlarged view of a portion a in fig. 2 according to the present invention.

Fig. 4 is a schematic structural diagram of the middle stationary disc of the present invention.

Reference numerals: the seal structure comprises a static disc bulge part 1, a rear cover bulge part 2, a cylinder body 3, a seal gasket 4, a first sealing surface 31, a second sealing surface 21, a third sealing surface 11, a fourth sealing surface 12, a fifth sealing surface 13, a step surface 23, a bulge part 41, a placement groove 121, a mounting groove 131 and a through hole 42.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are the directions or positional relationships indicated on the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.

The sealing structure for the electric compressor shown in the attached figures 1 to 4 comprises a static disc bulge 1, a rear cover bulge 2, a cylinder body 3 and a sealing gasket 4, wherein the static disc divides the inside of the cylinder body 3 into a first cavity and a second cavity, the end surfaces of the static disc bulge 1 and the cylinder body 3 are respectively attached to the end surface of the rear cover bulge 2, and the sealing gasket 4 is clamped at the attachment position of the end surfaces of the static disc bulge 1 and the cylinder body 3 and the end surface of the rear cover bulge 2.

Specifically, the cylinder 3 has a first sealing surface 31 attached to the rear cover, the rear cover protrusion 2 has a second sealing surface 21 attached to the stationary disc protrusion 1 and the cylinder 3, the radial attaching surface of the stationary disc protrusion 1 and the rear cover protrusion 2 is a third sealing surface 11, the axial attaching surface of the stationary disc protrusion 1 and the rear cover protrusion 2 is a fourth sealing surface 12, the axial attaching surface of the stationary disc protrusion 1 and the cylinder 3 is a fifth sealing surface 13, the fifth sealing surface 13 is perpendicular to the first sealing surface 31, and the second sealing surface 21 is perpendicular to the fourth sealing surface 12. The sealing gasket 4 is secured by compression of the rear cover projection 2 and the first sealing surface 31. In this embodiment, the gasket 4 is provided with a through hole 42, and the fastening member is connected to the cylinder 3 through the rear cover protruding portion 2 and the through hole 42.

The utility model discloses a setting up of seal gasket 4 carries out radial seal to

cylinder body

3 and 41 junctions of quiet dish, guarantee first cavity and second cavity promptly high-pressure chamber and low pressure chamber between the leakproofness, only need through the control to the 4 extrusion forces of seal gasket, thereby adjust seal gasket 4 and the packing force of first sealed face 31, in order to guarantee good sealed effect, replace quiet dish bulge 1 among the prior art simultaneously, the terminal surface of cylinder body 3 and the hard sealed form of terminal surface of back lid bulge 2, seal gasket 4 processing is simple and the machining precision is low.

Preferably, in the above embodiment, the fourth sealing surface 12 is provided with a circumferential groove 121, a gasket is provided in the groove 121, and the fourth sealing surface 12 is sealed by providing the gasket in the groove 121, whereby the sealing property between the first cavity and the second cavity can be ensured.

Preferably, as in the above embodiment, the fifth sealing surface 13 is provided with a circumferentially disposed mounting groove 131, a sealing ring is disposed in the mounting groove 131, and the fifth sealing surface 13 is sealed by disposing the sealing ring in the mounting groove 131, so as to further ensure the sealing performance between the first cavity and the second cavity.

Preferably, as the above embodiment, the second sealing surface 21 is provided with a step surface 23, the height of the side of the step surface 23 close to the stationary disk is higher, the step surface 23 is provided on the side of the fifth sealing surface 13 away from the stationary disk, the step surface 23 extends from the side of the circumferential surface of the fifth contact surface close to the cylinder 3 to the side of the circumferential surface of the fifth contact surface close to the stationary disk bulge 1, and the pressing force of the sealing gasket 4 and the first contact surface can be increased by the provision of the step surface 23, so that the sealing effect of the joint of the cylinder 3 and the stationary disk bulge 1 is increased.

Preferably, as for the above embodiment, a protruding portion 41 is disposed on a side of the sealing gasket 4 close to the rear cover protruding portion 2, the protruding portion 41 is attached to a side of the second attaching surface close to the stationary disc, the protruding portion 41 extends from a side of the fifth attaching surface circumferential surface close to the cylinder 3 to a side of the fifth attaching surface circumferential surface close to the stationary disc protruding portion 1, the pressing force between the sealing gasket 4 and the first attaching surface can be increased by disposing the protruding portion 41 on the sealing gasket 4, so as to increase the sealing effect at the joint between the cylinder 3 and the stationary disc protruding portion 1, the height difference between the protruding portion 41 and the second attaching surface can be effectively controlled by disposing the protruding portion 41, and the sealing gasket 4 is processed with a height difference, so that the processing is convenient and fast, and the required processing precision is low.

Preferably, the gasket 4 is provided with a plurality of convex structures, and the roughness of the gasket 4 is increased by the convex structures, so that the friction force between the rear cover and the cylinder 3 and between the rear cover and the end face of the stationary disc is increased.

It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description of the embodiments and the description is only for the purpose of illustrating the principles of the present invention, and that there can be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A kind of electric compressor uses the hermetically-sealed construction, characterized by that: including quiet dish bulge (1), back lid bulge (2), cylinder body (3) and seal gasket (4), quiet dish is for first cavity and second cavity with cylinder body (3) internal partitioning, the terminal surface of quiet dish bulge (1) and cylinder body (3) all laminates with the terminal surface of back lid bulge (2) mutually, seal gasket (4) press from both sides and establish the laminating department of the terminal surface of quiet dish bulge (1) and cylinder body (3) all with the terminal surface of back lid bulge (2).

2. A sealing structure for an electric compressor according to claim 1, characterized in that: the cylinder body (3) have with the first sealed face (31) of back lid laminating, back lid bulge (2) have with the sealed face (21) of second of quiet dish bulge (1) and cylinder body (3) laminating, quiet dish bulge (1) is sealed face (11) for the third with the radial binding face of back lid bulge (2), quiet dish bulge (1) is sealed face (12) for the fourth with the axial binding face of back lid bulge (2), quiet dish bulge (1) with the axial binding face of cylinder body (3) is the sealed face (13) of fifth.

3. A sealing structure for an electric compressor according to claim 2, characterized in that: and a step surface (23) is arranged on the second sealing surface (21), and the height of one side, close to the static disc, of the step surface (23) is higher.

4. A sealing structure for an electric compressor according to claim 2, characterized in that: one side of the sealing gasket (4) close to the rear cover protruding part (2) is provided with a protruding part (41), and the protruding part (41) is attached to one side of the second attaching surface close to the static disc.

5. A seal structure for an electric compressor according to any one of claims 2 or 3, characterized in that: and a placing groove (121) which is circumferentially arranged is formed in the fourth sealing surface (12), and a sealing ring is arranged in the placing groove (121).

6. A seal structure for an electric compressor according to claim 5, characterized in that: and a mounting groove (131) which is circumferentially arranged is formed in the fifth sealing surface (13), and a sealing ring is arranged in the mounting groove (131).

7. A seal structure for an electric compressor according to claim 5, characterized in that: and the sealing gasket (4) is provided with a convex structure.

8. A sealing structure for an electric compressor according to claim 2, characterized in that: the sealing gasket (4) is fixed by the extrusion of the rear cover bulge (2) and the first sealing surface (31).

9. A sealing structure for an electric compressor according to claim 8, wherein: the sealing gasket (4) is provided with a through hole (42), and the fastener passes through the rear cover protruding part (2) and the through hole (42) to be connected with the cylinder body (3).