Anti-vibration pad for electric scroll compressor of new energy automobile

Abstract

The utility model relates to an anti-vibration pad for an electric scroll compressor of a new energy automobile, belongs to the technical field of compressor vibration reduction, and solves the problems of automobile body vibration and noise caused by vibration of the compressor of the new energy automobile in the prior art. The anti-vibration pad is of an integrated structure. The anti-vibration pad comprises a buffering part used for buffering and vibration isolation and a mounting part. The buffer part and the mounting part are of cylindrical structures; the diameter of the buffer part is greater than that of the mounting part; the upper surface and the lower surface of the buffering part are provided with a plurality of first trapezoidal vibration reduction grooves and second trapezoidal vibration reduction grooves, and the first trapezoidal vibration reduction grooves and the second trapezoidal vibration reduction grooves are arrayed at equal intervals in the circumferential direction of the buffering part. An annular damping groove is formed in the outer side surface of the buffer part; a star-shaped mounting hole extending in the axis direction of the anti-vibration pad is formed in the center of the anti-vibration pad. The star-shaped mounting hole penetrates through the buffer part and the mounting part and is used for mounting a fixing screw. According to the utility model, the effective vibration reduction of the electric scroll compressor is realized, and the noise generated by the operation of the compressor is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration damping pads, in particular to a vibration damping pad for an electric scroll compressor of a new energy vehicle. Background Art

[0002] The electric scroll compressor used in new energy vehicles will produce low-frequency vibration and noise during use. In order to improve the comfort of passengers, the requirements for vibration isolation and noise reduction of electric scroll compressors are very high. Generally, vibration damping pads are installed on the brackets of electric scroll compressors to reduce noise and vibration; further, the vibration frequency between the electric scroll compressor and the frame is reduced to achieve the purpose of reducing the vibration of the steering wheel and the noise of the front and rear rows of the car.

[0003] However, the existing vibration-damping pads have limited vibration-damping effects and cannot meet the increasingly stringent requirements for vibration and noise reduction.

[0004] Therefore, the utility model provides a vibration-damping pad for an electric scroll compressor of a new energy vehicle, so as to enhance the effect of reducing noise and vibration of the electric compressor. Utility Model Content

[0005] In view of the above analysis, the utility model aims to provide a vibration-damping pad for an electric scroll compressor, so as to solve the problem that the vibration-damping effect of the existing vibration-damping pad is not ideal.

[0006] The purpose of this utility model is mainly achieved through the following technical solutions:

[0007] A vibration damping pad for an electric scroll compressor of a new energy vehicle, the vibration damping pad being an integrated structure; the vibration damping pad comprises a mounting portion and a buffer portion for buffering and vibration isolation; the buffer portion and the mounting portion are both cylindrical structures; the diameter of the buffer portion is larger than the diameter of the mounting portion; the buffer portion is provided with a first trapezoidal vibration damping groove, an annular vibration damping groove and a second trapezoidal vibration damping groove; a plurality of the first trapezoidal vibration damping grooves are provided on the upper surface of the buffer portion, and the plurality of the first trapezoidal vibration damping grooves are arrayed at equal intervals along the circumferential direction of the buffer portion; a plurality of the second trapezoidal vibration damping grooves are provided on the lower surface of the buffer portion, and the plurality of the second trapezoidal vibration damping grooves are arrayed at equal intervals along the circumferential direction of the buffer portion; the annular vibration damping groove is provided on the outer side surface of the buffer portion and is located in the middle of the buffer portion; a star-shaped mounting hole extending along the axial direction of the vibration damping pad is provided at the center of the vibration damping pad; the star-shaped mounting hole passes through the buffer portion and the mounting portion.

[0008] Furthermore, the cross section of the annular vibration damping groove is a circular ring, and the longitudinal section is a combination of a rectangle and a semicircle; the upper side and the lower side of the annular vibration damping groove are flat surfaces, and the inner side is an arc surface.

[0009] Furthermore, the first trapezoidal vibration damping groove and the second trapezoidal vibration damping groove are symmetrically arranged relative to the central plane of the buffer portion; a first trapezoidal buffer tooth is formed between two adjacent first trapezoidal vibration damping grooves, and a second trapezoidal buffer tooth is formed between two adjacent second trapezoidal vibration damping grooves; the first trapezoidal vibration damping groove and the first trapezoidal buffer tooth have the same size, and the second trapezoidal vibration damping groove and the second trapezoidal buffer tooth have the same size.

[0010] Furthermore, the longitudinal cross-sections of the first trapezoidal vibration-damping groove and the second trapezoidal vibration-damping groove are both isosceles trapezoids that are wider at the top and narrower at the bottom.

[0011] Furthermore, the first trapezoidal vibration-damping groove and the second trapezoidal vibration-damping groove are gradually reduced in size from the outer side to the center of the vibration-damping pad.

[0012] Furthermore, the first trapezoidal vibration-damping groove extends from the outer side surface of the buffer portion to the star-shaped mounting hole.

[0013] Furthermore, the second trapezoidal vibration-damping groove extends from the outer side surface of the buffer portion to the outer side surface of the mounting portion.

[0014] Furthermore, the star-shaped mounting hole is composed of a cylindrical hole and a plurality of triangular grooves arranged in an array along the circumferential direction of the cylindrical hole.

[0015] Furthermore, the bottom end of the triangular groove and the tip end between two adjacent triangular grooves are designed with rounded corners.

[0016] Furthermore, the vibration-damping pads are used in pairs on the upper and lower sides of the mounting bracket of the electric scroll compressor.

[0017] The technical solution of the utility model can achieve at least one of the following effects:

[0018] 1. The vibration damping pad for an electric scroll compressor of the utility model can effectively dampen and isolate the vibration generated by the operation of the compressor and greatly reduce the noise by arranging a circumferential array of trapezoidal vibration damping grooves on the upper and lower sides of the buffer part and arranging annular vibration damping grooves on the outer side of the buffer part; the first trapezoidal vibration damping groove and the second trapezoidal vibration damping groove are in contact with the nut / nut of the fastening screw and the surface of the mounting bracket respectively; on the one hand, the toothed part between the trapezoidal vibration damping grooves can effectively buffer the vibration in the vertical direction, and on the other hand, the internal energy of the vibration damping pad under the working state of the compressor can be released by scaling the annular vibration damping groove, which is beneficial to eliminate vibration and noise and can prevent the vibration damping pad from overheating.

[0019] 2. The utility model is used for a vibration damping pad of an electric scroll compressor, and the cylindrical mounting portion is used to cooperate with the mounting bracket of the compressor to facilitate the installation of the vibration damping pad; and an axially penetrating star-shaped mounting hole is arranged inside the vibration damping pad. After installation, the star-shaped mounting hole can buffer and isolate horizontal vibrations, and at the same time, the vibration energy absorbed by the vibration damping pad is released through the deformation of the star-shaped mounting hole, thereby reducing vibration and noise while releasing internal energy to prevent the vibration damping pad from heating up.

[0020] 3. The utility model is used for the vibration damping pad of the electric scroll compressor. The first trapezoidal vibration damping groove, the second trapezoidal vibration damping groove, the annular vibration damping groove and the star-shaped mounting hole can be processed and manufactured by cutting the blank, and can also be integrally formed by a mold. The production and processing are convenient, which is beneficial to improving the production efficiency, reducing the manufacturing cost of the vibration damping pad, and thus reducing the manufacturing cost of the automobile.

[0021] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents specifically pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0023] Figure 1 It is a schematic structural diagram of a vibration damping pad for an electric scroll compressor of the utility model;

[0024] Figure 2 It is a front view of the vibration damping pad for the electric scroll compressor of the utility model;

[0025] Figure 3 A top view of a vibration damping pad for an electric scroll compressor according to the utility model;

[0026] Figure 4 This is an effect diagram of the use status of the vibration damping pad for the electric scroll compressor of the utility model.

[0027] Reference numerals:

[0028] 1-Vibration damping pad; 2-Mounting bracket; 3-Bolt;

[0029] 101 - first trapezoidal vibration-damping groove; 102 - annular vibration-damping groove; 103 - second trapezoidal vibration-damping groove; 104 - star-shaped mounting hole; 105 - mounting portion. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0031] Example 1

[0032] A specific embodiment of the utility model discloses a vibration damping pad for an electric scroll compressor, such as Figure 1 , Figure 2 As shown, the vibration damping pad is an integrated structure; the vibration damping pad includes a buffering portion and a mounting portion 105 for buffering and vibration isolation; the buffering portion and the mounting portion 105 are both cylindrical structures; the diameter of the buffering portion is greater than the diameter of the mounting portion 105.

[0033] like Figure 4 As shown, when in use, the mounting portion 105 cooperates with the mounting hole on the mounting bracket 2 of the electric scroll compressor, and the upper and lower ends of the buffer portion respectively contact the bottom surface of the nut of the bolt 3 and the upper surface of the mounting bracket 2, thereby being able to reduce vibration of the electric scroll compressor when it vibrates.

[0034] Furthermore, if Figure 4 As shown, the vibration-damping pads are used in pairs on the upper and lower sides of the mounting bracket of the electric scroll compressor.

[0035] like Figure 1 As shown, the buffer portion is provided with a first trapezoidal vibration-damping groove 101 , an annular vibration-damping groove 102 and a second trapezoidal vibration-damping groove 103 .

[0036] Specifically, Figure 3 As shown, a plurality of first trapezoidal vibration-damping grooves 101 are disposed on the upper surface of the buffer portion, and the plurality of first trapezoidal vibration-damping grooves 101 are arranged in an array with equal intervals along the circumferential direction of the buffer portion.

[0037] Specifically, Figure 1 , Figure 2 As shown, a plurality of second trapezoidal vibration-damping grooves 103 are disposed on the lower surface of the buffer portion, and the plurality of second trapezoidal vibration-damping grooves 103 are arranged in an array with equal intervals along the circumferential direction of the buffer portion.

[0038] Furthermore, if Figure 2 As shown, the first trapezoidal vibration-damping groove 101 and the second trapezoidal vibration-damping groove 103 are symmetrically arranged relative to the central plane of the buffer portion.

[0039] Furthermore, if Figure 1As shown, a first trapezoidal buffer tooth is formed between two adjacent first trapezoidal damping grooves 101, and a second trapezoidal buffer tooth is formed between two adjacent second trapezoidal damping grooves 103. Specifically, the first trapezoidal damping groove 101 and the first trapezoidal buffer tooth have the same size, and the second trapezoidal damping groove 103 and the second trapezoidal buffer tooth have the same size.

[0040] Furthermore, the longitudinal cross-sections of the first trapezoidal vibration-damping groove 101 and the second trapezoidal vibration-damping groove 103 are both isosceles trapezoids that are wider at the top and narrower at the bottom.

[0041] Furthermore, the first trapezoidal vibration-damping groove 101 and the second trapezoidal vibration-damping groove 103 are gradually reduced in size from the outer side to the center of the vibration-damping pad.

[0042] That is to say, the first trapezoidal vibration damping groove 101 extends from the outer side of the buffer portion toward the middle star-shaped mounting hole 104, and the size of the first trapezoidal vibration damping groove 101 gradually decreases and is connected to the star-shaped mounting hole 104; the second trapezoidal vibration damping groove 102 extends from the outer side surface of the buffer portion to the outer side surface of the mounting portion 105, and the size gradually decreases.

[0043] When in use, when the electric scroll compressor generates up and down vibrations in the vertical direction, the first trapezoidal buffer teeth and the second trapezoidal buffer teeth can be compressed and deflected / torsional, thereby dissipating the vibration energy.

[0044] like Figure 1 , Figure 2 As shown, the annular vibration-damping groove 102 is arranged on the outer side of the buffer portion and is located in the middle of the buffer portion.

[0045] Specifically, the cross section of the annular vibration-damping groove 102 is a circular ring, and the longitudinal section is a combination of a rectangle and a semicircle; the upper side and the lower side of the annular vibration-damping groove 102 are planes, and the inner side is an arc surface.

[0046] During use, when the electric scroll compressor generates vertical up and down vibrations, the vibration damping pad is repeatedly compressed and released as a whole. When the vibration damping pad is compressed as a whole, the annular vibration damping groove 102 is also compressed, and the upper and lower sides of the annular vibration damping groove 102 deflect relative to the arc surface, and the deflection directions are opposite; at the same time, the arc curvature of the arc surface changes. In the process of the vibration damping pad being compressed or released as a whole, the shape change of the annular vibration damping groove 102 can consume vibration energy and release the internal energy of the vibration damping pad after absorbing vibration energy.

[0047] Furthermore, if Figure 1 , Figure 3 As shown, a star-shaped mounting hole 104 extending along the axis direction of the vibration-damping pad is provided at the center of the vibration-damping pad; the star-shaped mounting hole 104 passes through the buffer portion and the mounting portion 105 .

[0048] Furthermore, the first trapezoidal vibration-damping groove 101 extends from the outer side surface of the buffer portion to the star-shaped mounting hole 104 .

[0049] Furthermore, the second trapezoidal vibration-damping groove 102 extends from the outer side surface of the buffer portion to the outer side surface of the mounting portion 105 .

[0050] In a specific implementation of the present invention, the star-shaped mounting hole 104 is composed of a cylindrical hole and a plurality of triangular grooves arranged in an array along the circumferential direction of the cylindrical hole.

[0051] Furthermore, if Figure 3 As shown, the bottom end of the triangular groove and the tip between two adjacent triangular grooves are designed with rounded corners.

[0052] During implementation, the star-shaped mounting hole 104 can follow the vibration of the electric scroll compressor and deform. When the electric scroll compressor generates up and down vibrations and the vibration damping pad is compressed, the tooth-shaped portion between the triangular grooves of the star-shaped mounting hole 104 of the vibration damping pad is deformed, and the angles of the multiple triangular grooves of the star-shaped mounting hole 104 change; when the electric scroll compressor generates horizontal vibration / lateral vibration, the tooth-shaped portion between the triangular grooves of the star-shaped mounting hole 104 of the vibration damping pad is compressed. Through the deformation of the star-shaped mounting hole 104, the up and down vibrations in the vertical direction and the lateral vibrations in the horizontal direction can be buffered at the same time, and the internal energy of the vibration damping pad can be released.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A vibration damping pad for an electric scroll compressor of a new energy vehicle, characterized in that: The vibration-damping pad (1) is an integrated structure; the vibration-damping pad (1) comprises a mounting portion (105) and a buffer portion for buffering and isolating vibrations; the buffer portion and the mounting portion (105) are both cylindrical structures; the diameter of the buffer portion is greater than the diameter of the mounting portion (105); The buffer portion is provided with a first trapezoidal vibration-damping groove (101), an annular vibration-damping groove (102) and a second trapezoidal vibration-damping groove (103); A plurality of the first trapezoidal vibration-damping grooves (101) are arranged on the upper surface of the buffer portion, and the plurality of the first trapezoidal vibration-damping grooves (101) are arranged in an array with equal intervals along the circumferential direction of the buffer portion; A plurality of the second trapezoidal vibration-damping grooves (103) are arranged on the lower surface of the buffer portion, and the plurality of the second trapezoidal vibration-damping grooves (103) are arranged in an array with equal intervals along the circumferential direction of the buffer portion; The annular vibration-damping groove (102) is arranged on the outer side surface of the buffer portion and is located in the middle of the buffer portion; A star-shaped mounting hole (104) extending along the axis direction of the vibration-damping pad is arranged at the center of the vibration-damping pad; the star-shaped mounting hole (104) passes through the buffer portion and the mounting portion (105).

2. The vibration damping pad for the electric scroll compressor of new energy vehicles according to claim 1, characterized in that: The cross section of the annular vibration-damping groove (102) is a circular ring, and the longitudinal section is a combination of a rectangle and a semicircle; the upper side and the lower side of the annular vibration-damping groove (102) are planes, and the inner side is an arc surface.

3. The vibration damping pad for the electric scroll compressor of new energy vehicles according to claim 2, characterized in that: The first trapezoidal vibration damping groove (101) and the second trapezoidal vibration damping groove (103) are symmetrically arranged relative to the central plane of the buffer portion; a first trapezoidal buffer tooth is formed between two adjacent first trapezoidal vibration damping grooves (101), and a second trapezoidal buffer tooth is formed between two adjacent second trapezoidal vibration damping grooves (103); the first trapezoidal vibration damping groove (101) and the first trapezoidal buffer tooth have the same size, and the second trapezoidal vibration damping groove (103) and the second trapezoidal buffer tooth have the same size.

4. The vibration damping pad for the electric scroll compressor of new energy vehicles according to claim 3, characterized in that: The longitudinal cross-sections of the first trapezoidal vibration-damping groove (101) and the second trapezoidal vibration-damping groove (103) are both isosceles trapezoids that are wide at the top and narrow at the bottom.

5. The vibration damping pad for the electric scroll compressor of new energy vehicles according to claim 4, characterized in that: The first trapezoidal vibration-damping groove (101) and the second trapezoidal vibration-damping groove (103) gradually decrease in size from the outer side of the vibration-damping pad to the center.

6. The vibration damping pad for the electric scroll compressor of new energy vehicles according to any one of claims 1 to 5, characterized in that: The first trapezoidal vibration-damping groove (101) extends from the outer side surface of the buffer portion to the star-shaped mounting hole (104).

7. The vibration damping pad for the electric scroll compressor of new energy vehicles according to any one of claims 1 to 5, characterized in that: The second trapezoidal vibration-damping groove (103) extends from the outer side surface of the buffer portion to the outer side surface of the mounting portion (105).

8. The vibration damping pad for the electric scroll compressor of new energy vehicles according to claim 1, characterized in that: The star-shaped mounting hole (104) is composed of a cylindrical hole and a plurality of triangular grooves arranged in an array along the circumferential direction of the cylindrical hole.

9. The vibration damping pad for the electric scroll compressor of new energy vehicles according to claim 8, characterized in that: The bottom end of the triangular groove and the tip between two adjacent triangular grooves are both rounded.

10. The vibration damping pad for the electric scroll compressor of new energy vehicles according to claim 1, characterized in that: The vibration-damping pads are used in pairs on the upper and lower sides of the mounting bracket of the electric scroll compressor.

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