An electric compressor

Abstract

The utility model relates to an electric compressor, including compressor casing, earthing patch, bolt, the top and bottom of compressor casing all are provided with the installation machine foot, the both ends of installation machine foot respectively symmetrically are provided with the shock absorbing rubber pad, the shock absorbing rubber pad includes metal screw rod, rubber bush, the outer peripheral wall of rubber bush and the inner peripheral wall interference of installation machine foot abut, the inner peripheral wall of rubber bush is sleeved on the outer peripheral wall of metal screw rod, the end face bonding connection of earthing patch with one of metal screw rod of shock absorbing rubber pad, and earthing patch with installation machine foot contact, bolt passes two metal screw rod and earthing patch in proper order and will two metal screw rod and earthing patch fixed on installation machine foot, the utility model discloses electric compressor, need not extra occupy the space in the car, can effectively reduce the vibration of compressor, avoid the resonance of car internal component and reduce the grounding resistance of complete machine.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to an electric compressor. Background Technology

[0002] To meet the cooling needs of the electric vehicle's interior and the fast charging requirements of the battery pack, the cooling system needs to generate greater cooling capacity to balance the comfortable temperature inside the vehicle and the battery management requirements. The compressor, as a key component of the cooling system, requires higher rotational speeds for this increased cooling capacity. However, the severe vibrations generated by the compressor at high speeds can easily cause resonance in the vehicle frame, which is then transmitted to the steering wheel and dashboard area, and can also generate unusual noise near the driver's seat. This not only degrades the quality of the new energy vehicle but also affects the driver's experience. To reduce compressor vibration, shock absorber brackets are typically added to the vehicle for mounting. While this improves compressor vibration, it also increases the space occupied by the brackets, hindering lightweight and integrated design of the vehicle. Furthermore, some conventional rubber shock absorber components can increase the overall grounding resistance of the compressor. Utility Model Content

[0003] Based on this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide an electric compressor that does not require additional space in the vehicle, can effectively reduce compressor vibration, avoid resonance of vehicle components, and reduce the grounding resistance of the whole machine.

[0004] To achieve the above objectives, this utility model provides an electric compressor, including a compressor housing, a grounding patch, and bolts. The compressor housing has mounting feet at both its top and bottom. Shock-absorbing rubber pads are symmetrically fitted at both ends of each mounting foot. Each shock-absorbing rubber pad includes a metal screw and a rubber bushing. The outer peripheral wall of the rubber bushing is press-fitted against the inner peripheral wall of the mounting foot. The inner peripheral wall of the rubber bushing is fitted onto the outer peripheral wall of the metal screw. The grounding patch is attached to the end face of one of the metal screws of the shock-absorbing rubber pad and is in contact with the mounting foot. The bolts pass through two metal screws and the grounding patch in sequence, fixing the two metal screws and the grounding patch to the mounting foot.

[0005] Therefore, according to this utility model, the electric compressor symmetrically mounts two shock-absorbing rubber pads on the mounting feet of the compressor housing. Each shock-absorbing rubber pad consists of a metal screw and a rubber bushing. The rubber bushing makes an interference fit with the inner circumferential wall of the mounting foot, thereby absorbing vibrations from the mounting foot and achieving a shock-absorbing effect. The metal screw contacts a grounding patch, and the grounding patch contacts the mounting foot. Thus, when the bolt passes through the two metal screws and the grounding patch in sequence, an electrical connection is established between the bolt, the grounding patch, the metal screw, and the compressor housing, thereby reducing the overall grounding resistance. In other words, this utility model eliminates the need for additional shock-absorbing brackets. By setting shock-absorbing rubber pads and grounding patches at the mounting feet of the compressor housing and using bolts to press and fix the shock-absorbing rubber pads and grounding patches to the mounting feet, it effectively reduces compressor vibration, prevents resonance of vehicle components, and reduces the overall grounding resistance without occupying additional space inside the vehicle.

[0006] In one embodiment, the mounting foot includes two coaxially spaced mounting sleeves. Each of the two mounting sleeves has a first through hole at one adjacent end and a second through hole at the other end. The diameter of the first through hole is smaller than the diameter of the second through hole. The rubber bushing includes a first bushing and a second bushing coaxially connected. The outer diameter of the first bushing is smaller than the outer diameter of the second bushing. The metal screw includes a first nut and a first screw coaxially connected. The first bushing and the second bushing are coaxially sleeved on the first screw. The outer peripheral wall of the first bushing is press-fitted against the inner peripheral wall of the mounting sleeve. One end of the second bushing abuts against the end face of the first nut, and the other end of the second bushing abuts against the edge of the second through hole of the mounting sleeve.

[0007] In one embodiment, a third through hole is provided through the interior of the first screw along its axial direction for the bolt to pass through; a fourth through hole is provided through the interior of the rubber bushing along its axial direction, and the first screw passes through the fourth through hole from one end of the second bushing and extends out of the first through hole.

[0008] In one embodiment, the grounding patch includes a metal ring and two metal hooks integrally formed on the outer side wall of the metal ring. The metal ring is fitted and connected to the end face of the first nut away from the second bushing. The two metal hooks are respectively engaged and sleeved on the outer side walls of the first bushing and the first nut, and the outer side walls of the two metal hooks are respectively in contact with the mounting sleeve.

[0009] In one embodiment, the outer diameter of the first nut is equal to the outer diameter of the second bushing, and the metal hook is an anti-detachment structure. The metal hook is engaged and sleeved on the outer side wall of the first bushing and the first nut through one end of its opening.

[0010] In one embodiment, a plurality of protrusions are uniformly provided on the outer peripheral wall of the first bushing, and a groove is formed between two adjacent protrusions.

[0011] In one embodiment, the bolt includes a nut and a second screw and a second nut coaxially connected. The second screw passes through the two metal screws and the grounding patch in sequence, and is then tightened onto the second screw by the nut, which presses and fixes the two metal screws and the grounding patch onto the mounting foot.

[0012] In one embodiment, the first bushing and the second bushing are integrally formed, and the first screw and the first nut are integrally formed.

[0013] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the electric compressor according to an embodiment of the present utility model;

[0015] Figure 2 This is an exploded view of the electric compressor according to an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the shock-absorbing rubber pad of the electric compressor according to an embodiment of the present utility model;

[0017] Figure 4 This is an exploded view of the shock-absorbing rubber pad of the electric compressor according to an embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the grounding patch of the electric compressor according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 10. Compressor housing; 11. Mounting feet; 12. Mounting sleeve; 13. Bolt; 20. Shock-absorbing pad; 21. Metal screw; 22. Rubber bushing; 23. First bushing; 24. Second bushing; 25. Protrusion; 30. Grounding patch; 31. Metal ring; 32. Metal hook foot. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0023] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] In related technologies, to meet the cooling needs of the electric vehicle's interior and the fast charging requirements of the battery pack, the cooling system needs to generate greater cooling capacity to balance the suitable temperature inside the vehicle and the battery management requirements. The compressor, as a key component of the cooling system, requires higher rotational speeds for greater cooling capacity. However, the severe vibrations generated by the compressor at high speeds can easily cause resonance in the vehicle frame, which is then transmitted to the steering wheel and dashboard area, and also generates unusual noise near the driver's seat. This not only reduces the quality of the new energy vehicle but also affects the driver's experience. To reduce compressor vibration, shock absorber brackets are typically added to the vehicle for mounting. While this improves compressor vibration, it also increases the space occupied by the brackets, hindering the vehicle's lightweight and integrated design. Furthermore, some conventional rubber shock absorber components can increase the overall grounding resistance of the compressor.

[0025] Therefore, this utility model embodiment provides an electric compressor. The electric compressor according to this utility model embodiment does not require additional space inside the vehicle, effectively reduces compressor vibration, avoids resonance of components inside the vehicle, and reduces the overall grounding resistance.

[0026] Please see Figures 1 to 5 This utility model embodiment provides an electric compressor, including a compressor housing 10, a grounding patch 30, and bolts 13. The compressor housing 10 has mounting feet 11 at both its top and bottom. Shock-absorbing rubber pads 20 are symmetrically fitted at both ends of each mounting foot 11. Each shock-absorbing rubber pad 20 includes a metal screw 21 and a rubber bushing 22. The outer peripheral wall of the rubber bushing 22 is press-fitted against the inner peripheral wall of the mounting foot 11. The inner peripheral wall of the rubber bushing 22 is fitted onto the outer peripheral wall of the metal screw 21. The grounding patch 30 is attached to the end face of the metal screw 21 of one of the shock-absorbing rubber pads 20 and is in contact with the mounting foot 11. Bolts 13 pass through two metal screws 21 and the grounding patch 30 in sequence, fixing the two metal screws 21 and the grounding patch 30 to the mounting foot 11. Both the compressor housing 10 and the mounting feet 11 on the compressor housing 10 are made of metal.

[0027] Specifically, in this embodiment of the present invention, the mounting foot 11 includes two coaxially spaced mounting sleeves 12, each with a first through hole at one adjacent end and a second through hole at the other end. The diameter of the first through hole is smaller than the diameter of the second through hole. Correspondingly, the rubber bushing 22 includes a first bushing 23 and a second bushing 24 coaxially connected. The first bushing 23 and the second bushing 24 are integrally formed, and the outer diameter of the first bushing 23 is smaller than the outer diameter of the second bushing 24. The metal screw 21 includes a first nut and a first screw coaxially connected. The first screw and the first nut are integrally formed. The first bushing 23 and the second bushing 24 are coaxially sleeved on the first screw. The outer peripheral wall of the first bushing 23 is press-fitted against the inner peripheral wall of the mounting sleeve 12. One end of the second bushing 24 abuts against the end face of the first nut, and the other end of the second bushing 24 abuts against the edge of the second through hole of the mounting sleeve 12. In other words, in this embodiment of the invention, the rubber bushing 22 is inserted into the mounting sleeve 12 via a first bushing 23, such that the outer peripheral wall of the first bushing 23 forms an interference fit with the inner peripheral wall of the mounting sleeve 12, enabling the rubber bushing 22 to absorb vibrations transmitted from the mounting sleeve 12; while the second bushing 24 abuts against the outer port of the mounting sleeve 12. The outer peripheral wall of the first bushing 23 is uniformly provided with a plurality of protrusions 25, and a groove is formed between two adjacent protrusions 25; thus, the first bushing 23 can achieve an interference fit with the mounting sleeve 12 through the plurality of protrusions 25.

[0028] Furthermore, in this embodiment of the present invention, a third through hole is provided axially through the interior of the first screw, which is used for the bolt 13 to pass through; a fourth through hole is provided axially through the interior of the rubber bushing 22, and the first screw passes through the fourth through hole from one end of the second bushing 24 and extends out of the first through hole. In addition, the grounding patch 30 includes a metal ring 31 and two metal hooks 32 integrally formed on the outer wall of the metal ring 31. The metal ring 31 is fitted to the end face of the first nut away from the second bushing 24, and the two metal hooks 32 are respectively engaged and sleeved on the outer walls of the first bushing 23 and the first nut, and the outer walls of the two metal hooks 32 are respectively in contact with the mounting sleeve 12. The outer diameter of the first nut is equal to the outer diameter of the second bushing 24, and the metal hooks 32 are anti-detachment structures, such as a U-shaped structure, with one open end of the metal hooks 32 engaged and sleeved on the outer walls of the first bushing 23 and the first nut.

[0029] In addition, the bolt 13 in this embodiment of the present invention includes a nut and a second screw and a second nut that are coaxially connected. After the second screw passes through the two metal screws 21 and the grounding patch 30 in sequence, the nut is tightened on the second screw and the two metal screws 21 and the grounding patch 30 are pressed and fixed on the mounting foot 11.

[0030] Therefore, according to the electric compressor of this utility model embodiment, two shock-absorbing rubber pads 20 are symmetrically fitted on the mounting feet 11 of the compressor housing 10. The shock-absorbing rubber pads 20 are composed of metal screws 21 and rubber bushings 22. The rubber bushings 22 are partially in interference contact with the inner peripheral wall of the mounting feet 11, thereby absorbing the vibration from the mounting feet 11 and achieving the effect of shock absorption. The metal screws 21 are in contact with the grounding patch 30, and the grounding patch 30 is in contact with the mounting feet 11. In this way, when the bolts 13 pass through the two metal screws 21 and the grounding patch 30 in sequence, the bolts 13, the grounding patch 30, the metal screws 21 and the compressor housing 10 can be electrically connected, thereby reducing the grounding resistance of the whole machine. In other words, this utility model embodiment does not require additional shock-absorbing brackets. By setting shock-absorbing rubber pads 20 and grounding patches 30 at the mounting feet 11 of the compressor housing 10, and using bolts 13 to press and fix the shock-absorbing rubber pads 20 and grounding patches 30 at the mounting feet 11, the vibration of the compressor can be effectively reduced without occupying additional space inside the vehicle, thus avoiding resonance of components inside the vehicle and reducing the grounding resistance of the entire machine.

[0031] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the electric compressor of this utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. An electric compressor, characterized in that: The device includes a compressor housing, a grounding patch, and bolts. The compressor housing has mounting feet at both its top and bottom. Shock-absorbing rubber pads are symmetrically fitted at both ends of each mounting foot. Each shock-absorbing rubber pad includes a metal screw and a rubber bushing. The outer peripheral wall of the rubber bushing is press-fitted against the inner peripheral wall of the mounting foot. The inner peripheral wall of the rubber bushing is fitted onto the outer peripheral wall of the metal screw. The grounding patch is attached to the end face of one of the metal screws of the shock-absorbing rubber pad and is in contact with the mounting foot. The bolts pass through two metal screws and the grounding patch in sequence, fixing the two metal screws and the grounding patch to the mounting foot.

2. The electric compressor according to claim 1, characterized in that: The mounting feet include two coaxially spaced mounting sleeves. Each of the two mounting sleeves has a first through hole at one adjacent end and a second through hole at the other end. The diameter of the first through hole is smaller than the diameter of the second through hole. The rubber bushing includes a first bushing and a second bushing coaxially connected. The outer diameter of the first bushing is smaller than the outer diameter of the second bushing. The metal screw includes a first nut and a first screw coaxially connected. The first bushing and the second bushing are coaxially sleeved on the first screw. The outer peripheral wall of the first bushing is press-fitted against the inner peripheral wall of the mounting sleeve. One end of the second bushing abuts against the end face of the first nut, and the other end abuts against the edge of the second through hole of the mounting sleeve.

3. The electric compressor according to claim 2, characterized in that: The first screw has a third through hole extending through its interior along its axial direction, which is used for the bolt to pass through; the rubber bushing has a fourth through hole extending through its interior along its axial direction, and the first screw passes through the fourth through hole from one end of the second bushing and extends out of the first through hole.

4. The electric compressor according to claim 2, characterized in that: The grounding patch includes a metal ring and two metal hooks integrally formed on the outer side wall of the metal ring. The metal ring is attached to the end face of the first nut away from the second bushing. The two metal hooks are respectively engaged and sleeved on the outer side walls of the first bushing and the first nut, and the outer side walls of the two metal hooks are respectively in contact with the mounting sleeve.

5. The electric compressor according to claim 4, characterized in that: The outer diameter of the first nut is equal to the outer diameter of the second bushing. The metal hook is an anti-detachment structure, and the metal hook is engaged and sleeved on the outer side wall of the first bushing and the first nut through one end of its opening.

6. The electric compressor according to claim 2, characterized in that: The outer peripheral wall of the first bushing is uniformly provided with a plurality of protrusions, and a groove is formed between two adjacent protrusions.

7. The electric compressor according to claim 1, characterized in that: The bolt includes a nut and a second screw and a second nut that are coaxially connected. The second screw passes through the two metal screws and the grounding patch in sequence, and is then tightened onto the second screw by the nut, which presses and fixes the two metal screws and the grounding patch onto the mounting foot.

8. The electric compressor according to claim 2, characterized in that: The first bushing and the second bushing are integrally formed, and the first screw and the first nut are integrally formed.

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