Compressor support and compressor assembly structure
By designing an inverted V-shaped compressor bracket, and combining the lower and upper brackets with inclined damping pads, the problem of Y-axis vibration and noise in the compressor of the electric excavator was solved, achieving stability and vibration reduction in both the Y and Z axes, and extending the service life of the compressor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIUZHOU LIUGONG EXCAVATORS CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-05
AI Technical Summary
The existing compressor brackets in electric excavators have not effectively solved the problems of vibration and noise, especially in the Y direction, resulting in poor stability, large vibration and noise of the compressor under complex road conditions.
A compressor bracket is designed with the lower bracket having its peripheral edge bent upwards and tilted inwards to form a connecting part, and the upper bracket having its peripheral edge bent parallel to form a connecting area. A shock-absorbing pad is inclinedly placed between the two. The connecting part and the connecting area are fixed by studs and nuts to form an inverted V-shaped structure to enhance the shock absorption effect in the Y and Z directions.
It has good impact resistance and vibration reduction in both the Y and Z directions, ensuring that the compressor has good stability, low vibration and low noise under complex road conditions, and extending the service life of the compressor.
Smart Images

Figure CN224200777U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compressor technology, and in particular to a compressor bracket and compressor assembly structure. Background Technology
[0002] A compressor is a fluid machine that raises low-pressure gas to high-pressure gas. In electric excavators, the compressor serves both the cab cooling and battery cooling needs, making it a key component of the refrigeration system. The air conditioning compressor bracket is used to mount and secure the compressor, primarily to reduce vibration and noise transmission, improving the stability and comfort of the air conditioning system. In electric excavators, the compressor is typically mounted on the chassis. Because the chassis and compressor vibrate at different frequencies, vibration damping pads need to be incorporated into the compressor bracket design to ensure effective vibration reduction.
[0003] A common compressor bracket, as shown in patent publication number CN222501999U, is a flat plate structure with shock-absorbing pads positioned at the bottom along the Z-axis to provide good impact damping in that direction. However, in the operating conditions of electric excavators, the compressor is subjected to significant vibration and impact in both the Z and Y axes. The flat plate compressor bracket can only achieve vibration damping in the Z-axis, leaving the compressor with noticeable vibration and high noise levels in the Y-axis.
[0004] Patent CN211166317U discloses an electric air conditioning compressor bracket, including an upper support and a lower support. The upper and lower support are connected by a shock-absorbing connector. The four corners of the upper support are bent upwards and outwards to form a connecting bracket. The side of the lower support is bent upwards and outwards simultaneously to form a flat-bottomed V-shaped structure. Thus, the angle between the axis of the shock-absorbing connector installed between the connecting bracket and the V-shape and the horizontal plane is an acute angle, providing shock absorption in both the Z and Y directions. However, because its flat-bottomed V-shaped structure is achieved by bending upwards and outwards from the side of the lower support, its impact resistance and shock absorption in the Y direction are relatively weak. It can only meet the shock absorption and impact resistance requirements of electric vehicles with relatively stable road conditions. For electric excavators with complex road conditions, its shock absorption and impact resistance in the Y direction are insufficient, and the compressor still suffers from poor stability, high vibration, and high noise in the Y direction. Utility Model Content
[0005] In order to overcome at least one of the defects mentioned above in the prior art, the purpose of this utility model is to provide a compressor bracket and compressor assembly structure. The compressor bracket has good impact resistance and vibration reduction effect in both the Y and Z directions, which can ensure that the compressor has good stability, low vibration and low noise in both the Y and Z directions in electric excavators with complex road conditions, and is conducive to improving the service life of the compressor.
[0006] The technical solution adopted by this utility model to solve its problem is:
[0007] In a first aspect, this utility model provides a compressor bracket, comprising:
[0008] The lower support has a connecting part formed by bending the peripheral edge of the lower support upward and tilting it inward with a hook.
[0009] The upper support is located above the lower support, and the peripheral edge of the upper support is bent parallel to the connecting part to form a connecting area.
[0010] The shock-absorbing pad is located between the lower support and the upper support, and the connecting part and the connecting area are connected by the shock-absorbing pad.
[0011] In a preferred embodiment, the lower support includes a body portion, the opposite sides of the body portion are symmetrically bent upward to form an extension portion, and the upper end of the extension portion is bent at an angle toward the body portion to form a connecting portion.
[0012] In a preferred embodiment, the upper support includes a body area disposed above the middle region of the lower support, the opposite side of the body area is bent upward to form an extension area, and the upper end of the extension area is bent obliquely away from the body area and parallel to the connecting portion to form a connecting area.
[0013] In a preferred embodiment, the damping pad includes a damping pad body and studs disposed at opposite ends of the damping pad body. The damping pad body is connected to the connecting portion and the connecting area via the studs and locked by nuts.
[0014] In a preferred embodiment, a gasket is provided at the locking connection between the connecting part and the connecting area and the corresponding nut.
[0015] In a preferred embodiment, the angle between the axis of the shock-absorbing pad and the horizontal plane is 20-40°.
[0016] Secondly, this utility model provides a compressor assembly structure, including: a compressor body and the above-mentioned compressor bracket, wherein the compressor body is mounted on the upper bracket.
[0017] In a preferred embodiment, the compressor body has a mounting part at its bottom, and the upper end of the upper bracket is slidably connected to the mounting part via a connector.
[0018] In a preferred embodiment, the compressor body has a mounting portion at its axial end, and the side of the upper bracket extends upward corresponding to the mounting portion at the axial end to form a side bracket, which is slidably connected to its corresponding mounting portion via a connector.
[0019] In a preferred embodiment, the upper end of the upper bracket and the side bracket are provided with connecting ears facing the corresponding mounting parts. The connecting parts include screws and nuts. The screws pass through and connect the corresponding connecting ears and mounting parts, and are locked by the nuts.
[0020] The beneficial effects of the compressor bracket and compressor assembly structure provided by this utility model are as follows:
[0021] The lower support's peripheral edge bends upward and tilts inward to form a connecting part. This, in conjunction with the upper support's peripheral edge, is bent parallel to the connecting part to form a connecting area. When the shock-absorbing pad is positioned between the upper and lower supports, connecting the connecting part and the connecting area, the shock-absorbing pad is tilted. If the compressor experiences impact or vibration, the impact force and vibration are transmitted along the shock-absorbing pad to the lower support and decomposed into Z- and Y-directional forces transmitted to the chassis. Furthermore, because the connecting part is formed by bending upward and tilting inward from the lower support's peripheral edge, its stability, strength, and shock absorption in the Y-direction are superior. Thus, this compressor support exhibits good impact resistance and shock absorption in both the Y and Z directions, ensuring good stability, low vibration, and low noise in both directions, even in electric excavators operating on complex terrain, thereby extending the compressor's service life. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the compressor bracket of this utility model;
[0023] Figure 2 This is a right view of the compressor bracket of this utility model;
[0024] Figure 3 This is a schematic diagram of the compressor assembly structure of this utility model;
[0025] Figure 4 This is a front view of the compressor assembly structure of this utility model.
[0026] The meanings of the reference numerals in the attached figures are as follows:
[0027] 1. Lower bracket; 11. Connecting part; 12. Main body; 13. Extension part; 2. Upper bracket; 21. Connecting area; 22. Main body area; 23. Extension area; 24. Side bracket; 25. Connecting ear; 3. Vibration damping pad; 31. Vibration damping pad body; 32. Stud; 33. Nut; 34. Washer; 4. Compressor body; 41. Mounting part; 5. Connecting piece; 51. Screw; 52. Nut; 6. Bolt. Detailed Implementation
[0028] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.
[0029] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0031] See Figure 1 and Figure 2 This utility model provides a compressor bracket, including: a lower bracket 1, an upper bracket 2 and a shock-absorbing pad 3. The peripheral edge of the lower bracket 1 is bent upward and hooked inward to form a connecting part 11. The upper bracket 2 is located above the lower bracket 1, and the peripheral edge of the upper bracket 2 is bent parallel to the connecting part 11 to form a connecting area 21. The shock-absorbing pad 3 is located between the lower bracket 1 and the upper bracket 2, and the connecting part 11 and the connecting area 21 are connected by the shock-absorbing pad 3.
[0032] In this compressor bracket, the upper bracket 2 is used to mount the compressor body 4, and the lower bracket 1 is used to mount the compressor body 4 on the electric excavator's frame, in the X, Y, Z, and other directions, such as... Figure 4 As shown, the peripheral edge of the lower support 1 is bent upwards and tilted inwards to form a connecting part 11. This, in conjunction with the peripheral edge of the upper support 2, is bent parallel to the connecting part to form a connecting area 21. When the shock-absorbing pad 3 is positioned between the upper support 2 and the lower support 1, connecting the connecting part 11 and the connecting area 21, the shock-absorbing pad 3 is tilted. If the compressor is impacted or vibrates, the impact force and vibration will be transmitted along the shock-absorbing pad 3 to the lower support 1 and decomposed into Z- and Y-direction forces transmitted to the chassis. Furthermore, because the connecting part 11 is formed by bending upwards and tilting inwards from the peripheral edge of the lower support 1, its stability, strength, and shock absorption effect in the Y-direction are superior. Thus, this compressor support has good impact resistance and shock absorption effects in both the Y and Z directions, ensuring good stability, low vibration, and low noise in both directions for the compressor, even in electric excavators operating on complex terrain, thereby extending the compressor's service life.
[0033] Specifically, the lower support 1 includes a body portion 12. The opposite sides of the body portion 12 are symmetrically bent upwards to form extension portions 13. The upper ends of the extension portions 13 are bent at an angle towards the body portion 12 to form connecting portions 11. The body portion 12 is used to be fixedly mounted on the frame of an electric excavator by bolts 6. The body portion 12 has a flat plate structure, facilitating stable installation of the compressor support on the frame. The extension portions 13 can be located at any position on opposite sides of the body portion 12, as long as they are symmetrically arranged to ensure the stability of the compressor body 4 installation. In this invention, the four corners of the body portion 12 are bent upwards to form four extension portions 13, and the upper ends of each extension portion 13 are bent at an angle towards the body portion 12, that is, bent downwards and obliquely towards the inner region of the body portion 12 to form connecting portions 11. This allows the connecting portions 11 and the extension portions 13 to cooperate to form an inverted V-shaped structure, providing stronger impact resistance and vibration damping in the Y direction, resulting in good stability, low vibration, and low noise in both the Y and Z directions for the compressor body 4.
[0034] Based on the structure of the lower support 1, the upper support 2 includes a body area 22 located above the middle region of the lower support 1. The opposite sides of the body area 22 have corresponding extensions 13 that bend upwards to form extension areas 23. The upper end of the extension areas 23 is away from the body area 22 and bends obliquely parallel to the connecting part 11 to form a connecting area 21. The body area 22 has a flat plate structure. The four corners of the body area 22 have corresponding extensions 13 that bend upwards to form extension areas 23. The extension areas 23 do not necessarily have to be parallel to the extensions 13. This depends on the shape of the body part 12 and the body area 22. As long as the extension areas 23 can be bent obliquely to form a connecting area 21 parallel to the connecting part 11, the shock-absorbing pad 3 can be installed perpendicular to the connecting part 11 and the connecting area 21 to ensure stable shock absorption.
[0035] The shock-absorbing pad 3 includes a shock-absorbing pad body 31 and studs 32 located at opposite ends of the shock-absorbing pad body 31. The shock-absorbing pad body 31 is connected to the connecting part 11 and the connecting area 21 via the studs 32 and locked by nuts 33. The shock-absorbing pad body 31 is made of rubber, and studs 32 are provided at its axial ends through a vulcanization process. The studs 32 do not axially penetrate the shock-absorbing pad body 31. Both the connecting part 11 and the connecting area 21 have mounting holes adapted to accommodate the studs 32. During installation, the end of the stud 32 facing away from the shock-absorbing pad body 31 passes through the corresponding mounting hole of the connecting part 11 or the mounting hole of the connecting area 21, and then the nuts 33 are fitted and tightened to assemble the compressor bracket.
[0036] A washer 34 is provided at the locking connection between the connecting part 11 and the connecting area 21 and the corresponding nut 33. The washer 34 helps to improve the stability of the shock-absorbing pad 3 installed with the upper bracket 2 and the lower bracket 1.
[0037] In this invention, the angle between the axis of the shock-absorbing pad 3 and the horizontal plane is 20-40°. This angle can be selected from 20°, 25°, 30°, 35°, 40°, etc. Within this range, when the compressor body 4 is subjected to impact and vibration, the impact force and vibration can be reasonably distributed to the Z and Y directions, so as to improve the impact resistance, shock absorption and stability of the compressor body 4.
[0038] In addition, see Figure 3 and Figure 4 The present invention also provides a compressor assembly structure, including: a compressor body 4 and the above-mentioned compressor bracket, wherein the compressor body 4 is mounted on the upper bracket 2.
[0039] During compressor assembly, the lower support 1 is mounted on the frame of the electric excavator. The lower support 1 and the upper support 2 are connected by a shock-absorbing pad 3, and the compressor body 4 is mounted on the upper support 2. Because the connecting part 11 and the extension part 13 of the lower support 1 cooperate to form an inverted V-shaped structure, its stability, strength and shock absorption effect in the Y direction are superior. This gives the compressor support good impact resistance and shock absorption effect in both the Y and Z directions. Once the compressor body 4 is impacted and vibrates, the impact force and vibration will be transmitted to the lower support 1 along the shock-absorbing pad 3 and rationally decomposed into forces in the Z and Y directions and transmitted to the frame. This ensures that the compressor has good stability, low vibration and low noise in both the Y and Z directions in electric excavators with complex road conditions, which is beneficial to improving the service life of the compressor body 4.
[0040] Specifically, the compressor body 4 has a mounting part 41 at its bottom, and the upper end of the upper bracket 2 is slidably connected to the mounting part 41 via a connector 5. The mounting part 41 at the bottom of the compressor body 4 is provided corresponding to the body area 22 of the upper bracket 2. Both the mounting part 41 and the body area 22 have mounting holes, and the connector 5 passes through the mounting holes on the mounting part 41 and the body area 22 to realize the installation of the bottom of the compressor body 4 and the body area 22.
[0041] Furthermore, the compressor body 4 has a mounting portion 41 at its axial end. The side of the upper bracket 2 extends upward corresponding to the mounting portion 41 at its axial end to form a side bracket 24. The side bracket 24 is slidably connected to its corresponding mounting portion 41 via a connector 5. Both the side bracket 24 and the mounting portion 41 at its axial end have mounting holes. The connector 5 passes through the mounting holes on the mounting portion 41 and the side bracket 24 to realize the installation of the compressor body 4 at its axial end with the side bracket 24.
[0042] Therefore, the bottom and axial ends of the compressor body 4 are both assembled and connected to the upper bracket 2, which can improve the installation strength and stability of the compressor body 4.
[0043] The upper bracket 2 and the side bracket 24 are both provided with connecting ears 25 facing the corresponding mounting part 41. The connector 5 includes a screw 51 and a nut 52. The screw 51 passes through and connects the corresponding connecting ear 25 and the mounting part 41, and is locked by the nut 52. The connecting ear 25 has a mounting hole. The screw 51 passes through the corresponding connecting ear 25 and the mounting hole on the mounting part 41 in sequence, and is locked by the nut 52, thereby realizing the installation of the upper bracket 2 and the compressor body 4.
[0044] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.
Claims
1. A compressor bracket, characterized in that, include: A lower bracket for mounting on the frame of an electric excavator, wherein the peripheral edge of the lower bracket is bent upward and tilted inward to form a connecting part; An upper bracket for mounting the compressor body is located above the lower bracket, and the peripheral edge of the upper bracket is bent parallel to the connecting part to form a connecting area. A shock-absorbing pad is disposed between the lower support and the upper support, and the connecting part and the connecting area are connected through the shock-absorbing pad; The lower support includes a body portion, the opposite sides of which are symmetrically bent upwards to form an extension portion, and the upper end of the extension portion is bent at an angle toward the body portion to form the connecting portion.
2. The compressor bracket according to claim 1, characterized in that: The upper support includes a body area located above the middle region of the lower support. The opposite side of the body area bends upward to form an extension area, and the upper end of the extension area is bent away from the body area and parallel to the connecting portion to form the connecting area.
3. The compressor bracket according to claim 1, characterized in that: The shock-absorbing pad includes a shock-absorbing pad body and studs disposed at opposite ends of the shock-absorbing pad body. The shock-absorbing pad body is connected to the connecting part and the connecting area via the studs and locked by nuts.
4. The compressor bracket according to claim 3, characterized in that: The connecting part and the connecting area are provided with a gasket at the locking connection point of the corresponding nut.
5. The compressor bracket according to any one of claims 1-4, characterized in that: The angle between the axis of the shock-absorbing pad and the horizontal plane is 20-40°.
6. A compressor assembly structure, characterized in that, include: The compressor body and the compressor bracket according to any one of claims 1-5, wherein the compressor body is mounted on the upper bracket.
7. The compressor assembly structure according to claim 6, characterized in that: The compressor body has a mounting part at its bottom, and the upper end of the upper bracket is slidably connected to the mounting part through a connector.
8. The compressor assembly structure according to claim 7, characterized in that: The compressor body has a mounting portion at its axial end. The side of the upper bracket extends upward to form a side bracket corresponding to the mounting portion at the axial end. The side bracket is slidably connected to the mounting portion corresponding to it via the connector.
9. The compressor assembly structure according to claim 8, characterized in that: Both the upper end of the upper bracket and the side bracket are provided with connecting ears facing the corresponding mounting part. The connecting member includes a screw and a nut. The screw passes through and connects the corresponding connecting ear and the mounting part, and is locked by the nut.
Citation Information
Patent Citations
Electric air conditioner compressor support with multi-stage damping function
CN211166317U
Compressor support
CN222501999U