Damping structure for vacuum pump assembly installation and automobile
By designing a two-stage shock absorbing structure for vacuum pump assembly, the problem of poor shock absorption effect of vacuum pumps in the prior art is solved, and the two-stage noise and vibration reduction during vacuum pump operation is achieved, improving the sound quality in the cab.
Patent Information
- Application Number
- CN202420995951.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The shock absorption structure of existing electronic vacuum pumps is poor, resulting in the transmission of working noise and vibration into the cab, affecting NVH performance and customer experience.
A two-stage shock absorbing structure for installation of vacuum pump assembly is designed, connected to the mounting parts of the vacuum pump assembly through the first bracket, and a first shock absorbing pad is provided therebetween to realize first-stage shock absorbing; then connected to the first bracket through the second bracket, and a second shock absorbing pad is provided therebetween to realize second-stage shock absorbing and reduce the transmission of noise and vibration.
The two-stage shock absorption structure between the vacuum pump assembly and the car is realized, which significantly reduces the noise and vibration transmitted to the cab during the operation of the vacuum pump, improves the sound quality in the cab and reduces customer complaints.
Smart Images
Figure CN222596345U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobiles, and more specifically relates to a shock absorbing structure for installing a vacuum pump assembly and an automobile. Background Art
[0002] Improving the NVH performance of automobiles, improving the sound quality in the cab, and enhancing the driving experience of customers are important links in vehicle development. Limited by the vacuum pumping capacity of the engine, some models need to be equipped with electronic vacuum pumps for auxiliary vacuum pumping. The working noise of the electronic vacuum pump is transmitted to the cab through air, vibration of connecting parts, etc., causing complaints from customers.
[0003] At present, most auxiliary electronic vacuum pumps adopt a blade structure. In order to improve the air extraction performance, the speed is generally set higher. When working, the motor drives the blades to rotate at high speed and makes a sharp sound. In addition, due to the characteristics of its non-waterproof structure and the space for cabin layout, it is usually arranged on the longitudinal beam or near the longitudinal beam of the vehicle body. The existing electronic vacuum pump and its bracket fixing form usually have a shock-absorbing pad on the vacuum pump, and the shock-absorbing pad and the bracket are fixed by through bolts, and the shock-absorbing effect is very small. Utility Model Content
[0004] The purpose of the utility model is to provide a shock-absorbing structure for installing a vacuum pump assembly in view of the deficiencies in the prior art, so as to solve the problem that in the prior art the vacuum pump is connected to the bracket only by a shock-absorbing pad, and the bracket is connected to the body of the car, resulting in poor shock-absorbing effect on the vacuum pump.
[0005] In order to achieve the above object, the utility model provides a shock absorbing structure for installing a vacuum pump assembly, wherein the vacuum pump assembly comprises at least two mounting components, each of which is provided with at least one first mounting hole, including:
[0006] A first bracket, wherein the first bracket is provided with a second mounting hole and a third mounting hole, and the number of the second mounting holes is equal to the number of the first mounting holes;
[0007] a second bracket, wherein the second bracket is provided with fourth mounting holes, the number of the fourth mounting holes is equal to the number of the third mounting holes, and the second bracket is provided with a connecting portion, and the connecting portion is used to connect with the car;
[0008] a first shock-absorbing pad, the first shock-absorbing pad being arranged between the mounting component and the first bracket;
[0009] A second shock-absorbing pad is disposed between the first bracket and the second bracket.
[0010] Optionally, a first through hole is provided in the middle of the first shock-absorbing pad, and a first bolt passes through the first mounting hole, the first through hole and the second mounting hole in sequence and is connected to a first nut provided on a side of the first bracket away from the mounting component.
[0011] Optionally, the first shock-absorbing pad includes a barrel-shaped main body, a middle outer wall of the main body is provided with an inwardly recessed positioning groove, and the mounting component is snap-fitted into the positioning groove.
[0012] Optionally, the first nut is fixed to a side of the first bracket away from the mounting component.
[0013] Optionally, it also includes a support tube, which is inserted into the first through hole, and one end of the support tube is provided with an annular flange portion, which is in contact with one end of the main body and is located between the bolt head of the first bolt and the main body, and the length of the support tube is smaller than the length of the first through hole.
[0014] Optionally, a second bolt is respectively provided at both ends of the second shock-absorbing pad, and the second shock-absorbing pad passes through the third mounting hole and the fourth mounting hole respectively through the second bolts at both ends and is connected to a second nut provided on the side away from each other between the first bracket and the second bracket.
[0015] Optionally, two second bolts are integrally formed at two ends of the second shock-absorbing pad.
[0016] Optionally, the first shock-absorbing pad and the second shock-absorbing pad are made of rubber.
[0017] Optionally, the first bracket and the second bracket include a first annular portion and a second annular portion, respectively, and part of the vacuum pump assembly is disposed inside the first annular portion and the second annular portion and forms a first gap and a second gap between the first annular portion and the inner circumference of the second annular portion, respectively.
[0018] The utility model also provides a car, comprising:
[0019] Car body;
[0020] Vacuum pump assembly;
[0021] The above-mentioned shock-absorbing structure for installing the vacuum pump assembly, the vacuum pump assembly is connected to the vehicle body through the shock-absorbing structure for installing the vacuum pump assembly.
[0022] The utility model provides a shock-absorbing structure and a car for installing a vacuum pump assembly, and the beneficial effects are as follows: the shock-absorbing structure for installing the vacuum pump assembly comprises a first bracket and a second bracket, which are connected to the installation component of the vacuum pump assembly through the first bracket, and a first shock-absorbing pad is arranged between the first bracket and the installation component to achieve primary shock absorption, and is connected to the first bracket through the second bracket, and is also connected to the car through a connecting part on the second bracket, and a second shock-absorbing pad is arranged between the second bracket and the first bracket to achieve secondary shock absorption. Through such a design, a two-stage shock-absorbing structure between the vacuum pump assembly and the car is obtained, and the two-stage reduction of noise and vibration generated when the vacuum pump is working is achieved, thereby reducing the working noise transmitted to the cab, improving the sound quality in the cab, and reducing customer complaints.
[0023] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.
[0025] Figure 1 A three-dimensional structural schematic diagram of a shock absorbing structure for installing a vacuum pump assembly according to an embodiment of the utility model is shown.
[0026] Figure 2 A side structural schematic diagram of a shock absorbing structure for installing a vacuum pump assembly according to an embodiment of the utility model is shown.
[0027] Figure 3 A schematic diagram of the installation structure of a first shock-absorbing pad of a shock-absorbing structure for installing a vacuum pump assembly according to an embodiment of the utility model is shown.
[0028] Figure 4 A schematic diagram of the installation structure of a second shock-absorbing pad of a shock-absorbing structure for installing a vacuum pump assembly according to an embodiment of the utility model is shown.
[0029] Description of reference numerals:
[0030] 1. Mounting component; 2. First bracket; 3. Second bracket; 4. Connecting portion; 5. First shock-absorbing pad; 6. Second shock-absorbing pad; 7. First nut; 8. Second nut; 9. Positioning groove; 10. Support tube; 11. Flanged portion; 12. First bolt; 13. Second bolt; 14. Vacuum pump assembly. DETAILED DESCRIPTION
[0031] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.
[0032] like Figures 1 to 4 As shown, the utility model provides a shock absorbing structure for installing a vacuum pump assembly. The vacuum pump assembly 14 includes at least two mounting components 1, each mounting component 1 is provided with at least one first mounting hole, including:
[0033] A first bracket 2, the first bracket 2 is provided with a second mounting hole and a third mounting hole, and the number of the second mounting holes is equal to the number of the first mounting holes;
[0034] A second bracket 3, the second bracket 3 is provided with fourth mounting holes, the number of the fourth mounting holes is equal to the number of the third mounting holes, and the second bracket 3 is provided with a connecting portion 4, the connecting portion 4 is used to connect with the car;
[0035] A first shock-absorbing pad 5, which is arranged between the mounting component 1 and the first bracket 2;
[0036] The second shock absorbing pad 6 is arranged between the first bracket 2 and the second bracket 3 .
[0037] Specifically, in order to solve the problem in the prior art that the vacuum pump is connected to the bracket only through a shock-absorbing pad, and is connected to the body of the car through the bracket, which has a poor shock-absorbing effect on the vacuum pump; the shock-absorbing structure for installing the vacuum pump assembly provided by the utility model has a first bracket 2 and a second bracket 3, which are connected to the mounting component 1 of the vacuum pump assembly 14 through the first bracket 2, and a first shock-absorbing pad 5 is arranged between the first bracket 2 and the mounting component 1 to achieve primary shock absorption, and are connected to the first bracket 2 through the second bracket 3, and are also connected to the car through the connecting part 4 on the second bracket 3, and a second shock-absorbing pad 6 is arranged between the second bracket 3 and the first bracket 2 to achieve secondary shock absorption. Through such a design, a two-stage shock-absorbing structure between the vacuum pump assembly 14 and the car is obtained, which realizes a two-stage reduction of noise and vibration generated when the vacuum pump is working, reduces the working noise transmitted to the cab, improves the sound quality in the cab, and reduces customer complaints.
[0038] In this embodiment, the mounting component 1 includes a mounting plate, which extends outward from the outer side of the vacuum pump assembly 14, and a first mounting hole is formed on the mounting plate, and a hole wall on one side of the first mounting hole is opened to form a notch.
[0039] Optionally, a first through hole is provided in the middle of the first shock-absorbing pad 5 , and the first bolt 12 passes through the first mounting hole, the first through hole and the second mounting hole in sequence and is connected to a first nut 7 provided on a side of the first bracket 2 away from the mounting component 1 .
[0040] Specifically, the bolt head of the first bolt 12 is located on the side of the mounting component 1 away from the first bracket 2, the first nut 7 is located on the side of the first bracket 2 away from the mounting component 1, and the first bolt 12 is threadedly connected to the first nut 7 to achieve the installation of the vacuum pump assembly 14 on the first bracket 2.
[0041] Optionally, the first shock-absorbing pad 5 includes a barrel-shaped main body, a middle outer wall of the main body is provided with an inwardly recessed positioning groove 9, and the mounting component 1 is clamped in the positioning groove 9.
[0042] Specifically, the first shock-absorbing pad 5 is set to the shape of a wine barrel, and is clamped with the hole wall part of the first mounting hole through the positioning groove 9 in the middle. This can not only achieve stable installation of the first shock-absorbing pad 5 on the mounting component 1, but also form shock-absorbing parts on both sides of the mounting component 1 to improve the shock-absorbing effect.
[0043] Optionally, the first nut 7 is fixed on a side of the first bracket 2 away from the mounting component 1 .
[0044] Specifically, the first nut 7 may be a welding nut, which may be welded to a side of the first bracket 2 away from the mounting component 1 , so that the vacuum pump assembly 14 can be installed on the first bracket 2 by directly tightening the first bolt 12 .
[0045] Optionally, it also includes a support tube 10, which is inserted into the first through hole. One end of the support tube 10 is provided with an annular flange portion 11, which is fitted with one end of the main body and is located between the bolt head of the first bolt 12 and the main body. The length of the support tube 10 is smaller than the length of the first through hole.
[0046] Specifically, the support tube 10 is cylindrical, inserted in the first through hole, and is shorter than the first through hole. It can provide sufficient space for the elastic deformation of the first shock-absorbing pad 5, and also form support for the first shock-absorbing pad 5 in the first through hole. The setting of the flange portion 11 can increase the force area between the bolt head of the first bolt 12 and the end of the first shock-absorbing pad 5 during the tightening process of the first bolt 12.
[0047] Optionally, a second bolt 13 is respectively provided at both ends of the second shock-absorbing pad 6, and the second shock-absorbing pad 6 passes through the third mounting hole and the fourth mounting hole respectively through the second bolts 13 at both ends and is connected to the second nut 8 arranged on the side away from each other of the first bracket 2 and the second bracket 3.
[0048] Specifically, the body of the second shock-absorbing pad 6 is columnar, and a second bolt 13 with a threaded portion facing outward is provided at both ends thereof. The two second bolts 13 are respectively inserted into the third mounting hole and the fourth mounting hole on the first bracket 2 and the second bracket 3, and are threadedly connected with the second nut 8 to realize the connection between the first bracket 2 and the second bracket 3, and a shock-absorbing design is formed between the first bracket 2 and the second bracket 3 to improve the shock-absorbing effect.
[0049] Optionally, two second bolts 13 are integrally formed at two ends of the second shock-absorbing pad 6 .
[0050] Specifically, receiving grooves are formed at both ends of the second shock-absorbing pad 6 , and the shape of the receiving groove matches the shape of the bolt head of the second bolt 13 . The second bolt 13 is also integrally formed on the second shock-absorbing pad 6 through a vulcanization process.
[0051] Optionally, the first shock absorbing pad 5 and the second shock absorbing pad 6 are made of rubber.
[0052] Optionally, the first bracket 2 and the second bracket 3 include a first annular portion and a second annular portion respectively, and a partial vacuum pump assembly 14 is arranged inside the first annular portion and the second annular portion and forms a first gap and a second gap between the inner periphery of the first annular portion and the second annular portion respectively.
[0053] Specifically, when the vacuum pump assembly 14 is installed on the shock absorbing structure, part of the vacuum pump assembly 14 is inserted into the first annular portion and the second annular portion, and connected to the vehicle through the connecting portion 4 on the second bracket 3 .
[0054] In this embodiment, a bending plate is provided on one side of the second bracket 3 , and a connecting hole is provided on the bending plate. The connection with the vehicle body can be achieved through the connecting hole and the connecting bolts, such as being connected to the longitudinal beam of the vehicle.
[0055] In this embodiment, two mounting components 1 are symmetrically arranged on both sides of the vacuum pump assembly 14, and three second shock-absorbing pads 6 are evenly distributed along the circumference of the second annular portion, using the principle that triangular distribution is more stable to enhance the stability of the installation of the vacuum pump assembly 14.
[0056] The utility model also provides a car, comprising:
[0057] Car body;
[0058] Vacuum pump assembly 14;
[0059] The above-mentioned shock absorbing structure for installing the vacuum pump assembly, the vacuum pump assembly 14 is connected to the vehicle body through the shock absorbing structure for installing the vacuum pump assembly.
[0060] Specifically, when the vacuum pump assembly 14 is installed on the vehicle body through the above-mentioned shock-absorbing structure for installing the vacuum pump assembly, the first bracket 2 and the vacuum pump assembly 14 are first fixed through the first shock-absorbing pad 5 and the first bolt 12, and the first nut 7 is a welding nut welded on the first bracket 2; then the two second bolts 13 on the second shock-absorbing pad 6 are respectively passed through the third mounting hole and the fourth mounting hole corresponding to the first bracket 2 and the second bracket 3, and are fastened with the second nut 8. The noise and vibration generated by the vacuum pump assembly 14 when working are firstly attenuated by the first shock-absorbing pad 5, and the vibration is transmitted to the first bracket 2. The vibration received by the first bracket 2 is secondarily attenuated by the second shock-absorbing pad 6, and the vibration is transmitted to the second bracket 3. The second bracket 3 then transmits the vibration through the vehicle body to the cab through the fixed point on the connecting part 4; through the two-stage vibration attenuation, especially the second-stage rubber vibration isolation, the noise heard by the driver will be greatly reduced.
[0061] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims
1. A shock absorbing structure for installing a vacuum pump assembly, the vacuum pump assembly comprising at least two mounting components, each of the mounting components being provided with at least one first mounting hole, characterized in that: include: A first bracket, wherein the first bracket is provided with a second mounting hole and a third mounting hole, and the number of the second mounting holes is equal to the number of the first mounting holes; a second bracket, wherein the second bracket is provided with fourth mounting holes, the number of the fourth mounting holes is equal to the number of the third mounting holes, and the second bracket is provided with a connecting portion, and the connecting portion is used to connect with the car; a first shock-absorbing pad, the first shock-absorbing pad being arranged between the mounting component and the first bracket; A second shock-absorbing pad is disposed between the first bracket and the second bracket.
2. The shock absorbing structure for installing a vacuum pump assembly according to claim 1, characterized in that: A first through hole is provided in the middle of the first shock-absorbing pad, and a first bolt passes through the first mounting hole, the first through hole and the second mounting hole in sequence and is connected to a first nut provided on a side of the first bracket away from the mounting component.
3. The shock absorbing structure for installing a vacuum pump assembly according to claim 2, characterized in that: The first shock-absorbing pad comprises a barrel-shaped main body, a middle outer wall of the main body is provided with an inwardly recessed positioning groove, and the mounting component is clamped in the positioning groove.
4. The shock absorbing structure for installing a vacuum pump assembly according to claim 3, characterized in that: The first nut is fixed to a side of the first bracket away from the mounting component.
5. The shock absorbing structure for installing a vacuum pump assembly according to claim 3, characterized in that: It also includes a support tube, which is inserted into the first through hole. One end of the support tube is provided with an annular flange portion, which is fitted with one end of the main body and is located between the bolt head of the first bolt and the main body. The length of the support tube is smaller than the length of the first through hole.
6. The shock absorbing structure for installing a vacuum pump assembly according to claim 1, characterized in that: A second bolt is respectively provided at both ends of the second shock-absorbing pad, and the second shock-absorbing pad passes through the third mounting hole and the fourth mounting hole through the second bolts at both ends and is connected to a second nut provided at the side away from the first bracket and the second bracket.
7. The shock absorbing structure for installing a vacuum pump assembly according to claim 6, characterized in that: The two second bolts are respectively integrally formed at two ends of the second shock-absorbing pad.
8. The shock absorbing structure for installing a vacuum pump assembly according to claim 1, characterized in that: The first shock-absorbing pad and the second shock-absorbing pad are made of rubber.
9. The shock absorbing structure for installing a vacuum pump assembly according to claim 1, characterized in that: The first bracket and the second bracket include a first annular portion and a second annular portion, respectively. Part of the vacuum pump assembly is disposed inside the first annular portion and the second annular portion and forms a first gap and a second gap between the first annular portion and the inner circumference of the second annular portion, respectively.
10. An automobile, characterized in that: include: Car body; Vacuum pump assembly; According to the shock absorbing structure for installing a vacuum pump assembly according to any one of claims 1 to 9, the vacuum pump assembly is connected to the vehicle body through the shock absorbing structure for installing the vacuum pump assembly.