A vibration damping block for a vacuum pump and a vacuum pump assembly

Abstract

The present invention provides a vibration damping block for a vacuum pump and a vacuum pump assembly. The vacuum pump includes a mounting ear, and the mounting ear includes a mounting ear body and a mounting ear end. The vibration damping block includes a vibration damping block body, and the vibration damping block body is provided with a mounting hole corresponding to the mounting ear body. The mounting ear body is installed in the mounting hole. The vibration damping block body is provided with an extension portion, and the extension portion is formed by radially extending from one end of the vibration damping block body away from the vacuum pump. The present invention optimizes the structure of the vibration damping block so that the pump body of the vacuum pump is in full contact with the vibration damping block, increases the buffer stroke, reduces the impact force of the pump body on the fixed bracket, and fully protects the vacuum pump and the fixed bracket. At the same time, the vacuum pump assembly using the above-mentioned vibration damping block has excellent anti-seismic performance, can ensure the normal function of the brake module during the driving of the vehicle, and reduce the noise of the vehicle.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum pumps, and in particular to a vibration damping block for a vacuum pump and a vacuum pump assembly. Background Art

[0002] The vacuum pump is an important part of the automobile auxiliary braking system. In the prior art, the vacuum pump consists of a vacuum pump body, a shock absorber and a vacuum pump fixing bracket. In the impact test, if the impact force of the pump body is too large, the shock absorber cannot effectively buffer the impact force of the pump body, which will cause the vacuum pump fixing bracket to break. If the bracket breaks, it will affect the function of the vacuum pump, further affect the braking performance of the car, and bring hidden dangers to driving safety. At the same time, if the bracket breaks, it will generate additional vibration and noise, causing NVH problems for the entire vehicle. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a vibration damping block for a vacuum pump and a vacuum pump assembly. The vibration damping block can effectively buffer the impact of the vacuum pump body on the fixed bracket to avoid the fracture and failure of the fixed bracket. The vacuum pump assembly including the vibration damping block has excellent shock resistance, can effectively eliminate the safety hazards of the vehicle and solve the NVH problem of the whole vehicle.

[0004] Specifically, the present invention provides a vibration damping block for a vacuum pump, the vacuum pump comprising a vacuum pump body and a mounting ear extending outward from the vacuum pump body, the mounting ear comprising a mounting ear body and a mounting ear end, the vibration damping block comprising a vibration damping block body, the vibration damping block body being provided with a mounting hole corresponding to the mounting ear body, the mounting ear body being installed in the mounting hole, the vibration damping block body being provided with an extension portion, the extension portion being formed by radially extending from one end of the vibration damping block body away from the vacuum pump body.

[0005] Preferably, a surface of the extension portion facing the end of the mounting ear matches the shape of the end of the mounting ear.

[0006] Preferably, the surface of the extension portion facing the end of the mounting ear completely covers the end of the mounting ear.

[0007] Preferably, the extension portion surrounds the end of the mounting ear to form a through hole, and the through hole is coaxially arranged with the mounting hole.

[0008] Preferably, the mounting hole is interference fit with the mounting ear body.

[0009] Preferably, the vibration damping block body and the extension portion are made of an elastic material in one piece.

[0010] Another aspect of the present invention provides a vacuum pump assembly, including a vacuum pump and a fixing bracket, and also including the above-mentioned vibration damping block.

[0011] Preferably, the vacuum pump is detachably connected to the fixed bracket, the vibration damping block is fixed between the vacuum pump and the fixed bracket, the vibration damping block is sleeved on the mounting ear body, and the extension portion is located between the end of the mounting ear and the fixed bracket.

[0012] Preferably, a surface of the extension portion facing the end of the mounting ear is in contact with the end of the mounting ear.

[0013] Preferably, an end surface of the extension portion away from the vacuum pump is in contact with the fixing bracket.

[0014] The present invention optimizes the structure of the vibration damping block by adding an extension portion on the basis of the existing vibration damping block for the vacuum pump, so that the vacuum pump body can fully contact the vibration damping block during the impact process, and at the same time increase the buffer stroke, so that the vibration damping block can fully buffer the impact of the vacuum pump body on the fixed bracket, reduce the impact force of the pump body on the fixed bracket, and fully protect the vacuum pump and the fixed bracket. In addition, the structure of the vibration damping block is simple, has no significant impact on the existing production process, and can effectively control the production cost. At the same time, the vacuum pump assembly using the above-mentioned vibration damping block has excellent anti-seismic performance, can ensure the normal function of the brake module during the driving of the vehicle, and reduce the noise of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 An exploded view of a vacuum pump assembly according to a preferred embodiment of the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the vacuum pump;

[0017] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the vibration damping block;

[0018] Figure 4 for Figure 3 Front view of the vibration damping block;

[0019] Figure 5 for Figure 3 Schematic diagram of the structure of the GG section of the vibration damping block;

[0020] Figure 6 for Figure 1 Cross-sectional view of the vacuum pump assembly where the vacuum pump and vibration damping block are installed.

[0021] Reference numerals:

[0022] 10-vibration damping block, 110-vibration damping block body, 120-mounting hole, 130-extension part, 131-through hole,

[0023] 20-vacuum pump, 210-vacuum pump body, 220-mounting ear, 221-mounting ear body, 222-mounting ear end,

[0024] 30-Fix the bracket. DETAILED DESCRIPTION

[0025] The advantages of the present invention are described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0027] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0028] Figure 1 1 is an exploded view of a vacuum pump assembly according to an embodiment of the present invention. The vacuum pump assembly includes a vacuum pump 20 , a vibration damping block 10 and a fixing bracket 30 .

[0029] The vacuum pump 20 includes a vacuum pump body 210 and a mounting ear 220 extending outward from the vacuum pump body 210. Figure 2 The mounting ear 220 includes a mounting ear body 221 and a mounting ear end 222. The end surface of the mounting ear end 222 away from the vacuum pump 20 is an arc surface. The end surface of the mounting ear end 222 away from the vacuum pump 20 can also be a spherical surface or other shapes, which is not specifically limited in the present invention. The vacuum pump 20 is detachably connected to the fixed bracket 30. In this embodiment, the vacuum pump 20 is connected to the fixed bracket 30 by bolts. In other embodiments, the vacuum pump 20 and the fixed bracket 30 can be connected by other means such as buckles, which is not limited in the present invention.

[0030] The vibration damping block 10 is provided with a mounting hole 120, and the vibration damping block 10 is sleeved on the mounting ear 220 through the mounting hole 120 and fixed between the vacuum pump 20 and the fixing bracket 30. In other embodiments, the vibration damping block 10 is sleeved on the vacuum pump 20, which is not limited to being used in the vacuum pump assembly in this embodiment, and the present invention is not limited to this.

[0031] See also Figure 3-5 The vibration damping block 10 includes a vibration damping block body 110, and a mounting hole 120 corresponding to the mounting ear body 221 is provided on the vibration damping block body 110, and the mounting ear body 221 is installed in the mounting hole 120. On the basis of the prior art, an extension portion 130 is provided on the vibration damping block body 110, and the extension portion 130 is formed by radially extending from the end of the vibration damping block body 110 away from the vacuum pump body 210, that is, extending from the end of the vibration damping block body 110 away from the vacuum pump body 210 to the inside of the mounting hole 120. The extension direction of the extension portion 130 can extend along the axial direction of the mounting hole 120, and can also extend along the surface of the mounting ear end 222, and the side of the extension portion facing the mounting ear end 222 matches the shape of the mounting ear end 222, and the present invention does not make specific restrictions on this. In this way, the thickness of the vibration damping block 10 can be partially increased, thereby increasing the buffer distance of the vibration damping block 10. Preferably, in this embodiment, the extension portion 130 surrounds the mounting ear end portion 222 to form a through hole 131 .

[0032] In this embodiment, the vibration-damping block 10 is made of a rubber material in one piece. In other embodiments, the vibration-damping block body 110 and the extension portion 130 may be made of other elastic materials in one piece, which is not limited in the present invention.

[0033] Figure 6 It is a cross-sectional view of the connection between the vacuum pump 20 and the vibration damping block 10 in the vacuum pump assembly of this embodiment. In this embodiment, the mounting hole 120 is interference fit with the mounting ear 220 body. The surface of the extension portion 130 facing the mounting ear end 222 matches the shape of the mounting ear end 222. In this embodiment, the surface of the extension portion 130 facing the mounting ear end 222 fits the arc surface of the mounting ear end 222. Preferably, in this embodiment, the through hole 131 is coaxially arranged with the mounting hole 120 to make the force of the vibration damping block 10 more uniform. The end surface of the extension portion 130 away from the vacuum pump 20 fits the fixed bracket 30. In some embodiments, the extension portion 130 can completely cover the mounting ear end 222, and the surface of the extension portion 130 facing the mounting ear end 222 completely fits the mounting ear end 222.

[0034] The vibration damping block 10 in this embodiment is provided with an extension portion 130 on the vibration damping block body 110, partially increasing the thickness of the vibration damping block 10, forming a buffer area between the mounting ear end 222 and the fixed bracket 30, thereby preventing the mounting ear end 222 from directly impacting the fixed bracket 30 and causing the fixed bracket 30 to break, thereby increasing the buffer distance of the vibration damping block; at the same time, the extension portion 130 is in full contact with the mounting ear 220, increasing the contact area between the vibration damping block 10 and the mounting ear 220, and fully reducing the impact of the vacuum pump body on the fixed bracket 30. In addition, the vibration damping block 10 has a simple structure, has no significant impact on the existing production process, and can effectively control the production cost.

[0035] The vacuum pump assembly in this embodiment includes the above-mentioned vibration damping block 10, which can effectively absorb the impact energy of the vacuum pump body on the fixing bracket 30 and reduce the destructive force transmitted to the fixing bracket 30. Therefore, the vacuum pump assembly has excellent shock resistance and stability, which can ensure the normal function of the brake module during the driving of the vehicle and reduce the noise of the vehicle.

[0036] The specific embodiments of the present invention are described in detail above, but they are only examples, and the present invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions made to the present invention are also within the scope of the present invention. Therefore, the equalization changes and modifications made without departing from the spirit and scope of the present invention should be included in the scope of the present invention.

Claims

1. A vibration damping block for a vacuum pump, arranged between a vacuum pump and a fixed bracket, wherein the vacuum pump comprises a vacuum pump body and a mounting ear extending outward from the vacuum pump body, wherein the mounting ear comprises a mounting ear body and a mounting ear end, wherein the vibration damping block comprises a vibration damping block body, wherein a mounting hole corresponding to the mounting ear body is arranged on the vibration damping block body, and the mounting ear body is installed in the mounting hole, wherein: An extension portion is provided on the vibration damping block body, and the extension portion extends from one end of the vibration damping block body away from the vacuum pump body to the inside of the mounting hole. The extension direction of the extension portion extends along the axial direction of the mounting hole or along the surface of the mounting ear end. The side surface of the extension portion facing the mounting ear end matches the shape of the mounting ear end. The end surface of the extension portion away from the vacuum pump is fitted with the fixed bracket, the thickness of the vibration damping block is partially increased, and a buffer area is formed between the mounting ear end and the fixed bracket.

2. The vibration damping block according to claim 1, characterized in that: The surface of the extension portion facing the end of the mounting ear completely covers the end of the mounting ear.

3. The vibration damping block according to claim 1, characterized in that: The extension portion surrounds the end of the mounting ear to form a through hole, and the through hole is coaxially arranged with the mounting hole.

4. The vibration damping block according to claim 1, characterized in that: The mounting hole is interference-fitted with the mounting ear body.

5. The vibration damping block according to any one of claims 1 to 4, characterized in that: The vibration-damping block body and the extending portion are made of elastic material in one piece.

6. A vacuum pump assembly, comprising a vacuum pump and a fixing bracket, characterized in that: comprising a vibration damping block as described in any one of claims 1 to 5; The vacuum pump is detachably connected to the fixing bracket, and the vibration damping block is fixed between the vacuum pump and the fixing bracket; The vibration-damping block is sleeved on the mounting ear body, and the extension portion is located between the end of the mounting ear and the fixing bracket.

7. The vacuum pump assembly according to claim 6, characterized in that: A surface of the extension portion facing the end of the mounting ear is in contact with the end of the mounting ear.

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