Damping bushing, thermal management system for vehicle and automobile

Abstract

The utility model provides a damping bushing, a thermal management system for a vehicle and an automobile. The damping bushing comprises a boss, and a bearing part and a mounting part are arranged on the two sides of the boss respectively; a through hole penetrating through the damping bushing is formed in the damping bushing and comprises a first section located in the bearing part and a second section located in the mounting part, and the inner diameter of the second section is larger than that of the first section. The through hole is arranged to be the two sections with different diameters, after the bearing part makes contact with the radiator, the first section can conduct compression deformation damping, and due to the fact that the inner diameter of the first section is smaller than that of the second section, the connecting position of the first section and the second section can conduct up-down elastic deformation damping, and compared with existing damping only through compression, the damping effect is better. And the damping effect is better, so that the comfort of the whole vehicle is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile, especially a kind of shock absorbing bush, heat management system for vehicle and automobile. BACKGROUND

[0002] The heat management system is a key component in the vehicle, which usually includes a compressor, a condenser, a radiator, an electronic fan and a pipeline connecting these components. During the temperature regulation process of the heat management system, the radiator fan will generate vibrations, which will be transmitted to the radiator through the mounting point and ultimately to the vehicle body.

[0003] This vibration transmission can cause resonance of the passenger compartment and its internal brake pedal and steering wheel, thereby significantly affecting the driving experience of the driver and the riding comfort of the passenger, and also adversely affecting the NVH (Noise, Vibration, Harshness) performance of the vehicle.

[0004] A rubber bushing is usually provided to play a shock-absorbing role. The rubber bushing has good elastic properties and can buffer impact and vibration. The existing rubber bushing structure for shock absorption includes: (1) compression shock-absorbing type or elastic deformation type radiator lower support bushing. This bushing has a through hole designed inside, and the diameters of both ends of the through hole are the same. This structure has low vibration isolation rate and poor shock-absorbing effect, and cannot be applied to front-end heat dissipation modules with high comfort requirements and high vibration isolation rate; (2) suspension type. Although this type has high comfort and high vibration isolation rate, it has large structure space occupation, high layout requirement and high cost, and cannot be applied to places with small layout space and high performance requirements. SUMMARY

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a shock-absorbing bush, a heat management system for vehicle and an automobile, to solve the problem of poor shock-absorbing effect of the rubber bushing in the prior art.

[0006] To achieve the above-mentioned purposes and other related purposes, on one hand, the utility model provides a shock-absorbing bush, which includes a boss, a load-bearing part and a mounting part are respectively arranged on both sides of the boss; a through hole penetrating through the shock-absorbing bush is arranged in the shock-absorbing bush, the through hole includes a first section and a second section, and the inner diameter of the second section is greater than that of the first section.

[0007] Further, a compression part is arranged at the connection between the load-bearing part and the boss, the outer diameter of the compression part is smaller than that of the load-bearing part away from the boss, and the outer diameter of the compression part gradually decreases from the side of the load-bearing part away from the boss to the boss.

[0008] Further, the first section extends from an end of the load-bearing part away from the boss to the direction of the boss, and the second section extends from an end of the mounting part away from the boss to the direction of the boss.

[0009] Further, the first section extends to at least the boss, and an annular groove is arranged on the outer side of the first section in the mounting part, the groove is located at an end of the first section close to the second section, the opening of the groove faces the second section, the groove is coaxial with the through hole, the inner diameter of the groove is greater than the diameter of the first section, and the outer diameter of the groove is less than or equal to the diameter of the second section.

[0010] Further, the boss is provided with a reinforcing member.

[0011] Further, the reinforcing member comprises a horizontal section and a vertical section, the cross section of the horizontal section and the vertical section forms an L shape, the horizontal section of the reinforcing member is located in the boss, and the vertical section of the reinforcing member extends to the side of the mounting part.

[0012] Further, the reinforcing member is made of a metal material, and the reinforcing member is embedded in the boss through a vulcanization process.

[0013] Further, a flange is arranged on the side of the mounting part away from the boss, and the outer diameter of the flange is greater than the outer diameter of the mounting part.

[0014] In another aspect, the application provides a heat management system for a vehicle, comprising a radiator and the shock-absorbing bushing described above, and the shock-absorbing bushing is used to connect the radiator and the vehicle body.

[0015] In another aspect, the application provides an automobile, comprising a vehicle body and the heat management system for a vehicle described above, and the heat management system is installed on the vehicle body.

[0016] As described above, the application has the following beneficial effects: the through hole is arranged in two sections with different diameters, the first section can be compressed and deformed to absorb shock after the load-bearing part contacts the radiator, the connection between the first section and the second section can also be elastically deformed up and down to absorb shock because the inner diameter of the first section is smaller than the inner diameter of the second section, the shock-absorbing effect of the application is better than that of the prior art which only has compression shock absorption, and the comfort of the vehicle is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A front view of the shock-absorbing bushing provided by the application is shown in the figure.

[0018] Figure 2 A front view of the shock-absorbing bushing provided by the application is shown in the figure. Figure 1 A sectional view along A-A is shown in the figure.

[0019] Figure 3 Structure diagram of the reinforcing member;

[0020] Figure 4 Structure diagram of the heat management system.

[0021] Label explanation

[0022] 1 - boss, 2 - bearing part, 3 - mounting part, 31 - flange, 4 - through hole, 41 - first section, 42 - second section, 5 - compression part, 6 - reinforcing member, 61 - horizontal section, 62 - vertical section, 7 - groove, 8 - radiator. DETAILED DESCRIPTION

[0023] The implementation of the present application will be described by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0024] It should be understood that the structures, proportions, sizes, etc. shown in the drawings attached to the specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "up", "down", "left", "right", "middle" and "one" in the specification are only for the convenience of clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship without substantially changing the technical content is also considered as the scope of the present application.

[0025] In order to describe the present application in detail, first, the shock absorbing bushing, the heat management system for the vehicle and the automobile of the present application will be described in detail.

[0026] As shown in Figure 1 and Figure 2 The present application provides a shock absorbing bushing, which comprises a boss 1, a bearing part 2 and a mounting part 3, and the bearing part 2 and the mounting part 3 are arranged on both sides of the boss 1. The bearing part 2 is connected with a radiator 8 of a heat management system, and the mounting part 3 is connected with a vehicle body.

[0027] In some embodiments, the through hole 4 includes a first section 41 and a second section 42. The inner diameter of the first section 41 is not the same as that of the second section 42, which can be larger or smaller than that of the second section 42. The through hole 4 is divided into two sections with different diameters, and when the radiator 8 vibrates, the shock absorbing bushing is not only compressed for shock absorption, but the first section 41 and the second section 42 with different inner diameters can also be elastically deformed relative to each other, thereby achieving better shock absorption effect.

[0028] In this embodiment, the inner diameter of the second section 42 is larger than that of the first section 41, and when the radiator 8 vibrates, the force is transmitted to the first section 41. Since the inner diameter of the first section 41 is smaller than that of the second section 42, the shock absorbing bushing is compressed and deformed, reducing the impact of the radiator 8 vibration on the vehicle body. After the first section 41 is compressed, the inner side of the first section 41 will be recessed into the inner side of the second section 42, which provides space for the deformation of the first section 41. The first section 41 and the second section 42 can be elastically deformed relative to each other, thereby attenuating the vibration of the radiator 8 and enhancing the vibration isolation performance.

[0029] This embodiment designs the through hole 4 into two sections with different inner diameters, only needs to slightly increase the outer diameter of the mounting portion 3 compared to the existing shock absorbing bushing, without significantly increasing the volume of the shock absorbing bushing. Moreover, it ingeniously combines compression shock absorption and up-down elastic shock absorption mechanisms, significantly improving the overall vibration isolation efficiency of the shock absorbing bushing without increasing additional layout space. This not only helps to improve the stability and ride comfort of the vehicle during driving, but also effectively reduces the NVH problem caused by vibration, thereby providing a more quiet and comfortable driving experience.

[0030] At the same time, the connection between the first section 41 and the second section 42 is smoothly transitioned. The smooth transition can effectively disperse the stress at the connection, avoiding stress concentration caused by abrupt structures. Stress concentration is one of the main reasons for material fatigue and early failure of the shock absorbing bushing. By smoothing the transition, the durability and service life of the shock absorbing bushing can be significantly improved. The smooth transition can make there be no obvious weak point between the first section 41 and the second section 42, which can ensure that the shock absorbing bushing is more solid and reliable when bearing various loads.

[0031] The load bearing portion 2 is in contact with the radiator 8, and part of the radiator 8 enters the first section 41. Therefore, in order to enable the radiator 8 to smoothly enter the first section 41, a chamfer is provided on the side of the first section 41 away from the second section 42, which serves as a guide.

[0032] In some embodiments, the outer diameter of the boss 1 is larger than the outer diameter of the load-bearing portion 2 and the mounting portion 3. The main purpose of this design is to limit the shock-absorbing bushing and effectively limit the direct contact between the vehicle body and the side part of the radiator 8. Through this ingenious layout, the boss 1 not only plays a limiting role, but also plays a physical isolation role, ensuring that the vehicle body and the radiator 8 will not be unnecessarily worn due to external impact or long-term use.

[0033] Specifically, when the shock-absorbing bushing is installed in place, the boss 1 can ensure that the shock-absorbing bushing is fixed in a predetermined position, preventing displacement or loosening during vehicle operation. At the same time, due to the presence of the boss 1, the contact area between the shock-absorbing bushing and the vehicle body is increased, preventing the side part of the radiator 8 from contacting the vehicle body, and avoiding potential damage or vibration transmission caused by direct contact between the radiator 8 and the vehicle body. This not only improves the overall stability and durability of the system, but also helps to further optimize the NVH performance of the vehicle, providing a more comfortable and quiet driving experience for the driver and passengers. In addition, this design reduces installation errors, making maintenance work more convenient and efficient. In summary, by setting the boss 1, not only the functionality of the shock-absorbing bushing is enhanced, but also the overall vehicle reliability and user experience are improved.

[0034] In some embodiments, in order to make the compression effect better, a compression portion 5 is provided between the load-bearing portion 2 and the boss 1, and the outer diameter of the compression portion 5 is smaller than that of the boss 1 and the load-bearing portion 2, which is equivalent to setting a relatively small diameter compression section between the two large diameter sections. This design can further improve the compression performance of the shock-absorbing bushing. Since the diameter of the compression portion 5 is smaller than the outer diameter of the boss 1 and the load-bearing portion 2 on both sides, the inner side of the first section 41 is recessed and deformed towards the inner side of the second section 42, thereby more effectively absorbing and dispersing vibration energy.

[0035] In this embodiment, the design of the compression portion 5 can provide better cushioning effect and reduce the impact force transmitted to the vehicle body and the radiator 8. By setting a small diameter compression section between the large diameter sections, the stress distribution can be better controlled. When the vehicle encounters bumps or impacts during driving, the compression portion 5 can deform preferentially, concentrating stress in this area and protecting other critical parts from damage. The smaller diameter compression portion 5 has higher flexibility and can quickly respond to external forces in a short time, quickly compressing and recovering, which helps to improve the response speed and efficiency of the entire shock-absorbing system. Even in the process of frequent compression and recovery, it can maintain good elasticity and stability, thereby prolonging the overall service life of the shock-absorbing bushing.

[0036] The outer diameter of the compression part 5 gradually decreases from the side of the boss 1 away from the load-bearing part 2 to the boss 1, that is, the diameter of the compression part 5 gradually decreases from the load-bearing part 2 to the boss 1. After the load-bearing part 2 is compressed, the inner side of the first section 41 deforms downward, and the outer side of the load-bearing part 2 can deform upward away from the side of the boss 1. By providing the compression part 5, the deformation of the load-bearing part 2 will not cause the boss 1 to deform. If the outer side of the load-bearing part 2 is directly connected vertically with the boss 1 without the compression part 5, when the inner side of the first section 41 is recessed to the inner side of the second section 42, the outer side of the load-bearing part 2 deforms upward and pulls the boss 1 to deform, thereby affecting the damping effect. The compression part 5 is provided in the utility model, which is equivalent to the shock absorbing bushing in the damping process, only the upper part of the boss 1 is deformed, and the mounting part 3 in contact with the vehicle body deforms less, thereby affecting the vehicle body less.

[0037] The load-bearing part 2 and the compression part 5 can be smoothly transitioned, and the compression part 5 and the boss 1 are also smoothly transitioned, which can reduce stress concentration points, help to evenly distribute loads, and avoid damage caused by local overload. At the same time, the gradually changing outer diameter allows the compression part 5 to deform more naturally when subjected to pressure, thereby providing more linear compression characteristics, better absorbing and dispersing vibration energy, and improving the overall performance of the shock absorbing bushing. As the outer diameter gradually decreases, the stiffness of the compression part 5 at different positions also changes, which helps to improve the response speed to different frequency vibrations. The smaller diameter part can deform faster, while the larger diameter part provides better support, which is equivalent to the part of the compression part 5 in contact with the boss 1 deforming first, and then the part in contact with the load-bearing part 2 deforming, which can ensure the stability and reliability of the overall structure.

[0038] In detail, due to the increase in the inner diameter of the second section 42, in order not to affect the installation of the shock absorbing bushing and the vehicle body, the outer diameter of the mounting part 3 needs to be increased under the condition that the thickness of the mounting part 3 remains unchanged, which can ensure that the mounting part 3 can be stably connected with the vehicle body and provide sufficient support.

[0039] The longer the length of the first section 41 compared to the second section 42, the better the shock absorption effect. Therefore, the first section 41 passes downward through the boss 1, so that the first section 41 has more space for elastic deformation, and the shock absorption effect of the shock absorption bushing is better. Since the first section 41 passes downward through the boss 1, the thickness of the connecting part of the mounting portion 3 and the boss 1 is relatively thick. The thicker part is not easy to deform effectively when subjected to vibration, thereby affecting the shock absorption performance. The embodiment is provided with a groove 7 in the mounting portion 3, that is, the groove 7 is arranged outside the first section 41. The groove 7 is located on the side of the first section 41 close to the second section 42, and the groove 7 is located outside the first section 41. The opening of the groove 7 faces the end of the second section 42. The groove 7 is annular, and the groove 7 is coaxial with the through hole 4. The inner diameter of the groove 7 is greater than the diameter of the first section 41, and the diameter of the groove 7 is less than or equal to the diameter of the second section 42.

[0040] The groove 7 arranged outside the first section 41 reduces the amount of material of the contact part of the mounting portion 3 and the boss 1, reduces the thickness of the contact part of the mounting portion 3 and the boss 1, so that this part can be more effectively compressed and rebounded when subjected to vibration. The groove 7 can make it easier to elastically deform.

[0041] The shock absorption bushing is made of rubber, so the support performance of the shock absorption bushing is not very high. In order to improve the support performance of the shock absorption bushing, a metal reinforcing member 6 is added in the boss 1. Figure 2 and Figure 3 As shown in FIGS. 6 and 7, the cross section of the reinforcing member 6 is L-shaped, and the horizontal section 61 of the reinforcing member 6 is arranged in the boss 1 along the horizontal direction of the boss 1, which can provide additional rigidity and stability to prevent excessive deformation of the boss 1 when subjected to pressure. The vertical section 62 of the reinforcing member 6 extends to the mounting portion 3 on the side of the mounting portion 3, and the vertical section 62 is arranged parallel to the through hole 4. By adding the reinforcing member 6, not only the longitudinal support capacity of the entire shock absorption bushing is enhanced, but also the compression and tensile strength is improved. By embedding the metal reinforcing member 6, the overall rigidity of the shock absorption bushing is significantly improved, which helps to maintain the stability and integrity of the structure when bearing large loads, prolongs the service life of the shock absorption bushing, especially in the case of long-term heavy load or frequent vibration.

[0042] The reinforcing member 6 is embedded in the shock absorption bushing through a vulcanization process, which is a method of tightly combining rubber and metal. In this process, the rubber undergoes cross-linking reaction under high temperature and high pressure, forming a solid whole, which can ensure that there is no gap between the metal reinforcing member 6 and the rubber, avoiding separation or loosening during use. At the same time, the shock absorption bushing after vulcanization has better durability and fatigue resistance, which can maintain its structural integrity and functional stability even in long-term use and harsh working environment.

[0043] Through the vulcanization process, the metal reinforcing part 6 can be directly embedded during the rubber injection molding or compression molding process, achieving integrated molding. This not only simplifies the production process, but also ensures the quality consistency of the product. The combination of the metal reinforcing part 6 and the rubber not only retains the elastic shock-absorbing properties of the rubber, but also increases the overall rigidity. This combination allows the shock-absorbing bushing to absorb vibrations while providing stable support.

[0044] The mounting portion 3 is provided with a flange 31 on the side away from the boss 1, and the outer diameter of the flange 31 is larger than that of the mounting portion 3. The flange 31 can effectively clamp the mounting hole, preventing the shock-absorbing bushing from loosening or falling off the vehicle body during use due to vibration. The guide design of the flange 31 makes it easier to insert the shock-absorbing bushing into the mounting hole of the vehicle body, and it can be fixed in place by simple pressing or tapping.

[0045] On the other hand, as Figure 4 shown, the present application also provides a heat management system for a vehicle, comprising a radiator 8 and the above-mentioned shock-absorbing bushing, which is used to connect the radiator 8 to the vehicle body.

[0046] On the other hand, the present application also provides an automobile comprising a vehicle body and the above-mentioned heat management system for a vehicle, which is installed on the vehicle body.

[0047] The above embodiments are only illustrative of the principles and effects of the present application, and are not intended to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed by the present application shall be covered by the claims of the present application.

Claims

1. A vibration damping bushing, characterized by The boss is provided with a bearing part and a mounting part on two sides respectively; a through hole is arranged in the damping bushing, the through hole comprises a first section and a second section, and the inner diameter of the second section is larger than that of the first section.

2. The vibration damping bushing of claim 1, wherein A compression part is arranged at the connection between the bearing part and the boss, the outer diameter of the compression part is smaller than that of the bearing part; the outer diameter of the compression part gradually decreases from the side of the bearing part away from the boss to the boss.

3. The vibration damping bushing of claim 1, wherein The first section extends from the end of the bearing part away from the boss to the boss, and the second section extends from the end of the mounting part away from the boss to the boss.

4. The damping bushing of claim 3, wherein, The first section extends to the boss at least, the outer side of the first section is provided with an annular groove, the groove is located at the end of the first section close to the second section, the opening of the groove faces the second section, the groove is coaxial with the through hole, the inner diameter of the groove is larger than the diameter of the first section, and the outer diameter of the groove is smaller than or equal to the diameter of the second section.

5. The vibration damping bushing of any one of claims 1-4, wherein, A reinforcing part is arranged in the boss.

6. The vibration damping bushing of claim 5, wherein The reinforcing part comprises a horizontal section and a vertical section, the cross section of the horizontal section and the vertical section forms an L shape, the horizontal section of the reinforcing part is located in the boss, and the vertical section of the reinforcing part extends to the side of the mounting part.

7. The vibration damping bushing of claim 5, wherein The reinforcing part is made of metal material, and the reinforcing part is embedded in the boss through a vulcanization process.

8. The vibration damping bushing of any one of claims 1-4 or 6-7, characterized in that, A flange is arranged on the side of the mounting part away from the boss, and the outer diameter of the flange is larger than that of the mounting part.

9. A thermal management system for a vehicle, characterized by, The heat sink and the damping bushing of any one of claims 1-8 are used to connect the heat sink and a vehicle body.

10. An automobile characterized by comprising: The heat management system for vehicles of claim 9 is mounted on the vehicle body.

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