Power battery suspension assembly of heavy truck

Abstract

The utility model relates to the technical field of truck motor system vibration reduction, in particular to a power battery suspension assembly of a heavy truck, which comprises a mounting seat and vulcanized bodies axially mounted in the mounting seat in pairs, and each vulcanized body sequentially comprises a mandrel, a rubber body and an outer sleeve from inside to outside in the radial direction. A first limiting flange abutting against the axial outer end of the rubber body is arranged at the outer end of the mandrel, a second limiting flange located on the inner side of the first limiting flange is arranged at the outer end of the outer sleeve, the rubber body comprises an outer side flexible section extending to the position between the first limiting flange and the second limiting flange, and the outer side flexible section wraps the second limiting flange. The inner ends of the mandrel, the rubber body and the outer sleeve are oppositely installed, the axial inner end of the rubber body is provided with a first deformation groove, and the radial outer end of the outer side flexible section is provided with a second deformation groove. The battery suspension can achieve reliable connection of the power battery and the frame, has good vibration isolation and reduction capacity, and can guarantee stable operation and service life of a battery system.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration reduction of truck motor systems, and specifically provides a heavy-duty truck power battery suspension assembly. Background Art

[0002] At present, most heavy trucks use fuel engine systems, and the battery system is mainly a storage battery, which is usually attached to one side of the frame beam, and a small part is placed at the rear end of the frame. The battery system is light in weight and generally does not have elastic vibration reduction elements. With the rapid development of new energy power and the gradual improvement of infrastructure, more and more heavy trucks have begun to use power battery systems as power sources. They mainly replace the engine with an electric motor drive based on traditional fuel vehicles, and fix the power battery on the frame behind the cab, or fix the battery to both sides of the frame through a rigid frame. There is still no special elastic system design for the power battery, but the connection between the frame and the battery system is achieved by designing a special adapter bracket.

[0003] Among the patents of prior art retrieved, such as the utility model patent with patent number "201720942502.5" and patent name "A battery suspension bracket", or the utility model patent with patent number "202122369993.8" and patent name "Battery bracket, battery bracket assembly and automobile", etc., the battery support frame is mainly designed according to the large size of the battery, or the software used for traditional engine suspension is used to support the battery system, and no special heavy-duty truck power battery suspension is designed to provide vibration reduction support for the battery.

[0004] During the actual operation of heavy trucks, the rigid connection causes the power battery to be directly exposed to the vibration and impact of the road surface. The entire battery system has a poor attenuation effect on the vibration transmitted from the ground, and the suspension may even break and fail prematurely. At the same time, deformation such as torsion of the frame will also be transmitted to the power battery, causing the battery reliability to deteriorate. At the same time, due to insufficient limit stops on traditional engine suspensions and the fact that the power battery weighs about 4 tons, which is much heavier than the engine, there are major safety hazards in the installation and use of power batteries in existing heavy trucks.

[0005] In summary, how to design a highly reliable special suspension system for heavy-duty truck power batteries to improve the vibration isolation protection capability and connection stability of the heavy-duty truck battery system is an issue that needs to be solved urgently. Utility Model Content

[0006] In order to solve the above problems, the utility model provides a heavy truck power battery suspension assembly, which can effectively attenuate the vibration and impact transmitted by the road surface, provide better protection for the heavy truck battery system, and improve the use stability and service life of the battery system.

[0007] The utility model provides a heavy-duty truck power battery suspension assembly, comprising a mounting seat and vulcanized bodies axially mounted in pairs in the mounting seat, wherein the vulcanized bodies radially sequentially comprise a core shaft, a rubber body and an outer sleeve, wherein the outer end of the core shaft is provided with a limiting flange 1 abutting against the axial outer end of the rubber body, the outer end of the outer sleeve is provided with a limiting flange 2 located inside the limiting flange 1, and the rubber body comprises an outer flexible section extending between the limiting flange 1 and the limiting flange 2; when the vulcanized bodies are mounted in pairs, the inner ends of the core shaft, the rubber body and the outer sleeve are relatively mounted.

[0008] Furthermore, the diameter of the limiting flange 1 is greater than the inner diameter of the outer sleeve.

[0009] Furthermore, a deformation groove 1 is provided at the axial inner end of the rubber body.

[0010] Furthermore, the outer flexible section is coated on the second limiting flange.

[0011] Furthermore, a second deformation groove is provided at the radial outer end of the outer flexible section.

[0012] Furthermore, the first deformation groove is an arc-shaped groove structure protruding from the inside to the outside toward one side of the second limiting flange along the axial direction, and the second deformation groove is an arc-shaped groove structure protruding from the outside to the inside toward the core shaft along the radial direction.

[0013] Furthermore, when the vulcanized bodies are mounted, the inner end faces of the core shafts are in contact with each other, and the inner end faces of the rubber bodies close to the inner connecting sections of the core shafts are in contact with each other.

[0014] Furthermore, a deformation groove 1 is formed by extending the inner connecting section of the rubber body toward the side away from the core shaft; when the vulcanized bodies are mounted, a gap 1 is left between the inner end faces of the outer sleeves, and the mounted rubber bodies are enclosed at one part of the deformation groove to form an annular deformation cavity, and the deformation cavity is correspondingly disconnected at one part of the gap to form a gap 2.

[0015] Furthermore, the mounting seat comprises a bottom connecting seat and an upper mounting seat located at the upper end of the bottom connecting seat, the upper mounting seat is provided with a mounting through hole, and the vulcanized body is mounted in the mounting through hole.

[0016] Furthermore, a connecting platform is provided at a corner of the mounting seat and a connecting hole is provided on the connecting platform, and a weight-reducing groove is provided at the bottom end of the mounting seat.

[0017] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0018] 1. The battery suspension assembly in the utility model can connect the battery frame and the frame beam. The rubber body structure in the suspension can effectively attenuate the vibration and impact transmitted from the road surface, avoid deformation of the frame and transmission to the battery, and protect the battery system to operate properly under various road conditions.

[0019] 2. The battery suspension assembly in the utility model can realize directional limitation. At the same time, the limiting flange 1 of the core shaft and the limiting flange 2 of the outer sleeve can further realize limitation, which can prevent the suspension from being damaged and falling out. The vibration reduction and connection functions can be maintained for life to provide good protection for the battery. The rubber body has good durability and excellent reliability, which can achieve lifelong maintenance-free and exempt the driver from the work of regular maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structure of the battery suspension assembly provided according to the embodiment of the utility model is schematically shown in FIG. Figure 1 (stereoscopic image);

[0021] Figure 2 The overall structure of the battery suspension assembly provided according to the embodiment of the utility model is schematically shown in FIG. Figure 2 (front view);

[0022] Figure 3 yes Figure 2 Sectional view in the AA direction;

[0023] Figure 4 It is a schematic diagram of the sulfide body pairing provided according to an embodiment of the utility model;

[0024] Figure 5 It is a schematic diagram of the overall structure of a vulcanized body provided according to an embodiment of the utility model;

[0025] Figure 6 It is a schematic diagram of the explosion structure of the sulfide body provided according to an embodiment of the utility model;

[0026] Figure 7 The overall structure of the battery suspension assembly provided according to the embodiment of the utility model is shown in FIG. Figure 3 (Stereoscopic image).

[0027] The accompanying drawings include: mounting seat 1, vulcanized body 2, core shaft 3, rubber body 4, outer sleeve 5, limiting flange one 6, limiting flange two 7, outer flexible section 8, deformation groove one 9, deformation groove two 10, inner connecting section 11, gap one 12, gap two 13, deformation cavity 14, bottom connecting seat 15, upper mounting seat 16, connecting platform 17, connecting hole 18, weight reduction groove 19. DETAILED DESCRIPTION

[0028] In the following, reference will be made to the Figure 1-7 Describe the embodiment of the utility model. In the following description, the same modules are represented by the same reference numerals. In the case of the same reference numerals, their names and functions are also the same. Therefore, the detailed description thereof will not be repeated.

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following Figure 1-7 It should be understood that the specific embodiments described herein are only used to explain the present invention and do not constitute a limitation on the present invention.

[0030] A heavy truck power battery suspension assembly is connected between a battery frame and a vehicle frame, comprising a mounting seat 1 and two vulcanized bodies 2, the two vulcanized bodies 2 are mounted in pairs in the mounting seat 1 along the axial direction, and the axial direction is as follows: Figure 2 As shown in the M direction, Figure 1 , Figure 2 , Figure 7 As shown, the mounting seat 1 includes a bottom connecting seat 15 and an upper mounting seat 16. The upper mounting seat 16 is located at the upper end of the bottom connecting seat 15. The upper mounting seat 16 is provided with a mounting through hole. The vulcanized body 2 is mounted in the mounting through hole. A connecting platform 17 is provided at a corner of the mounting seat 1. The connecting platform 17 is provided with a connecting hole 18. The battery suspension assembly is connected to the frame through the connecting hole 18. A weight reduction groove 19 is provided at the bottom end of the mounting seat 1. The weight reduction groove 19 can save materials and achieve lightweight. At the same time, the mounting seat 1 is made of materials such as cast steel or forged aluminum, which can achieve high strength and lightweight effects.

[0031] like Figure 1-Figure 6 As shown, the vulcanized body 2 includes a core shaft 3, a rubber body 4 and a jacket 5 in sequence from the inside to the outside in the radial direction. Figure 2 As shown in the N direction, the outer end of the core shaft 3 is provided with a limiting flange 6 abutting against the axial outer end of the rubber body 4, and the outer end of the outer sleeve 5 is provided with a limiting flange 2 7 located on the inner side of the limiting flange 6. The diameter of the limiting flange 6 is larger than the inner diameter of the outer sleeve 5. The limiting flange 6 can limit the outer sleeve 5 and the rubber body 4 well, prevent the outer sleeve 5 and the rubber body 4 from falling off, avoid the battery from falling, and improve the installation reliability.

[0032] The rubber body 4 includes an outer flexible section 8 extending between the limiting flange 1 6 and the limiting flange 2 7. The axial inner end of the rubber body 4 is provided with a deformation groove 1 9. The outer flexible section 8 is covered on the limiting flange 2 7, which can protect the limiting flange 2 and improve the deformation ability. The radial outer end of the outer flexible section 8 is provided with a deformation groove 2 10. The deformation groove 2 10 is an arc groove structure protruding from the outside to the inside toward the core shaft 3 in the radial direction. The deformation groove 2 10 can provide space for the deformation of the rubber. At the same time, the arc groove structure can prevent the rubber surface from being folded and deformed during the deformation process. The deformation groove 1 9 is an arc groove structure protruding from the inside to the outside toward one side of the limiting flange 2 7 in the axial direction. The deformation groove 1 9 can also provide an extrusion space for the deformation of the rubber, which can prevent the rubber surface from being stacked, folded, deformed or broken when the rubber is deformed.

[0033] Since power batteries are very expensive, if the battery suspension connected to the vibration reduction is damaged and falls out, the power battery may be loose or unable to work, which may cause the battery to catch fire. The pair of vulcanized bodies 2 can make the entire battery suspension have greater rigidity in the axial direction. No matter in which direction the rubber is stressed, it has great rigidity and can withstand a large load. The limiting flange 1 6 and the limiting flange 2 7 can limit the battery in the original position, so that the connection relationship between the battery and the battery suspension always exists, which can ensure the safety of the battery. At the same time, in this embodiment, the vulcanized body 2 is also pressed with interference fit, so that the vulcanized body 2 is in a compressed state under various working conditions, which can effectively improve the durability of the vulcanized body 2.

[0034] When the vulcanized bodies 2 are mounted in pairs, the inner ends of the mandrel 3, the rubber body 4 and the outer sleeve 5 are mounted relatively to each other. Specifically, when the vulcanized bodies 2 are mounted in pairs, the inner end faces of the mandrel 3 are relatively abutted to ensure the support stiffness. Figure 3 As shown at S in the figure, the inner end surface of the rubber body 4 is relatively in contact with the inner connecting section 11 close to the core shaft 3, as shown in FIG. Figure 3 As shown at D in the middle, the deformation groove 19 is formed by the inner connecting section 11 of the rubber body 4 extending toward the side away from the core shaft 3. When the vulcanized body 2 is installed in pairs, a gap 12 is left between the inner end faces of the outer sleeve 5. The installed rubber bodies 4 are surrounded at the deformation groove 19 to form an annular deformation cavity 14. The deformation cavity 14 is correspondingly disconnected at the gap 12 to form a gap 2 13. The deformation cavity 14 and the gap 2 13 can provide a space for the rubber to be squeezed without damage when the vulcanized body 2 is installed and pressed and during the use of the suspension assembly. The gap 12 can prevent the outer sleeve 5 from being damaged. At the same time, in this embodiment, the rubber body 4 can be designed with a corresponding structure to adjust the stiffness according to the actual stiffness requirements.

[0035] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

[0036] The above specific implementation methods of the utility model do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A heavy truck power battery suspension assembly, characterized in that: The invention comprises a mounting seat (1) and vulcanized bodies (2) which are mounted in pairs in the mounting seat (1) along the axial direction. The vulcanized bodies (2) comprise a core shaft (3), a rubber body (4) and an outer sleeve (5) in order from the inside to the outside in the radial direction. The outer end of the core shaft (3) is provided with a first limiting flange (6) which abuts against the axial outer end of the rubber body (4). The outer end of the outer sleeve (5) is provided with a second limiting flange (7) which is located inside the first limiting flange (6). The rubber body (4) comprises an outer flexible section (8) which extends between the first limiting flange (6) and the second limiting flange (7). When the vulcanized bodies (2) are mounted in pairs, the inner ends of the core shaft (3), the rubber body (4) and the outer sleeve (5) are mounted relative to each other.

2. The heavy truck power battery suspension assembly according to claim 1, characterized in that: The diameter of the limiting flange 1 (6) is greater than the inner diameter of the outer sleeve (5).

3. The heavy truck power battery suspension assembly according to claim 2, characterized in that: The axial inner end of the rubber body (4) is provided with a deformation groove 1 (9).

4. The heavy truck power battery suspension assembly according to claim 3 is characterized in that: The outer flexible section (8) is coated on the second limiting flange (7).

5. The heavy truck power battery suspension assembly according to claim 4, characterized in that: A second deformation groove (10) is provided at the radial outer end of the outer flexible section (8).

6. The heavy truck power battery suspension assembly according to claim 5, characterized in that: The first deformation groove (9) is an arc-shaped groove structure protruding from the inside to the outside toward one side of the second limiting flange (7) along the axial direction, and the second deformation groove (10) is an arc-shaped groove structure protruding from the outside to the inside toward the core shaft (3) along the radial direction.

7. The heavy truck power battery suspension assembly according to claim 6, characterized in that: When the vulcanized body (2) is mounted, the inner end faces of the core shaft (3) are in contact with each other, and the inner end faces of the rubber body (4) are in contact with the inner connecting section (11) close to the core shaft (3).

8. The heavy truck power battery suspension assembly according to claim 7, characterized in that: The deformation groove 1 (9) is formed by extending the inner connecting section (11) of the rubber body (4) toward the side away from the core shaft (3); when the vulcanized bodies (2) are mounted, a gap 1 (12) is left between the inner end faces of the outer sleeve (5); the mounted rubber bodies (4) are surrounded at the deformation groove 1 (9) to form an annular deformation cavity (14), and the deformation cavity (14) is correspondingly disconnected at the gap 1 (12) to form a gap 2 (13).

9. The heavy truck power battery suspension assembly according to claim 8, characterized in that: The mounting seat (1) comprises a bottom connecting seat (15) and an upper mounting seat (16) located at the upper end of the bottom connecting seat (15); a mounting through hole is provided on the upper mounting seat (16); and the vulcanized body (2) is mounted in the mounting through hole.

10. The heavy truck power battery suspension assembly according to claim 9, characterized in that: A connecting platform (17) is provided at a corner of the mounting seat (1), and a connecting hole (18) is provided on the connecting platform (17), and a weight-reducing groove (19) is provided at the bottom end of the mounting seat (1).

Images