Battery assembly support cushion structure

Abstract

The application relates to the field of heavy truck power battery assembly systems, in particular to a battery assembly supporting cushion structure, which comprises an outer shell and a main rubber damping unit supported in the outer shell; the main rubber damping unit comprises a core body and a rubber body; the rubber body is arranged between the core body and the outer shell; the inner wall of the outer shell is symmetrically arranged in a conical shape to improve the rigidity of the main rubber damping unit in X / Y / Z three directions and improve the supporting capacity in the corresponding directions; the outer shell is a half-open shell at one end, comprising an open end and a mounting end; the open end is provided with a limiting structure; one end of the limiting structure extends into the main rubber damping unit to limit the position of the main rubber damping unit and the outer shell. The inner wall of the additional shell of the battery assembly supporting cushion structure is symmetrically arranged in a conical shape, which provides installation space for the rubber body and can make one side of the main rubber body symmetrically and obliquely arranged, so that the whole supporting cushion structure can be uniformly stressed in each direction and effectively buffered.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heavy truck power battery assembly system, in particular to a battery assembly supporting cushion structure. BACKGROUND

[0002] The existing heavy truck mostly uses a fuel engine system, and the battery system is mainly a storage battery, which is mostly attached to one side of the frame girder or placed at the rear end of the frame. Most battery systems are light in weight and generally do not have elastic damping elements.

[0003] With the development of new energy power, some heavy truck models have begun to use battery systems as power sources. However, there is no special battery suspension assembly element for the battery system at present. The existing heavy truck power battery system is not designed with a special suspension support system, or the transmission engine suspension is used as a substitute. Therefore, the entire battery system has poor vibration attenuation effect for ground transmission, and even the suspension breaks down prematurely. It cannot effectively connect and limit the protection effect.

[0004] CN222636511.3 discloses a flexible anti-torsion suspension device for a power battery, which uses flexible rubber to connect the frame support and the battery box support, increases the anti-torsion capability of the power battery box, and prolongs the service life of the battery box. When the battery box is connected using the device, the material of the battery box can be thinned and lightened, which can save energy and increase the cruising range of the vehicle.

[0005] CN217294252.5 discloses a storage battery suspension support, which includes a connecting support fixedly connected with a storage battery box and a fixed support fixedly connected with a frame. The connecting support and the fixed support are connected by a rubber pad in the longitudinal direction, and a limiting support is fixedly connected to the fixed support, and the rubber pad is located inside the limiting support. The storage battery box and the frame are connected by a flexible rubber pad, and the rubber pad is limited in three directions by the support, so that the rubber pad does not fail due to excessive deformation.

[0006] CN22122369993.8 discloses a battery support, a battery support assembly and a vehicle. The battery support includes a bracket, a hanger connected to the bracket and extending away from the bracket, the hanger and the bracket jointly limiting a mounting position of the battery, and the hanger is used to connect with the frame, and a fastener is used to fasten the bracket and the hanger.

[0007] The searched patent above also mainly designs the support frame of the main body according to the large volume of the battery, does not design the damping unit or adopts the software for the transmission engine suspension to support the battery system. The battery system is connected through the design of the special adapter bracket, and a special rubber damping element is not designed for the battery system of the heavy truck. The damping performance and the reliability of the suspension are poor. The anti-vibration and damping capacity of the battery system cannot be effectively improved.

[0008] Therefore, it is necessary to design a supporting cushion structure specially suitable for a battery assembly to fill the gap of the suspension support technology of the power battery system of the heavy truck. SUMMARY

[0009] In view of the deficiencies of the prior art, the application discloses a battery assembly supporting cushion structure, which can effectively attenuate the vibration and impact transmitted by the road surface through the design of the shell, the main body rubber damping unit and the limiting structure, protect the battery system from running well under various road conditions, and at the same time, the suspension system itself has excellent reliability, the structure can realize lifelong maintenance-free, and the driver's regular maintenance work is eliminated.

[0010] The technical means adopted by the application to solve the above problems are as follows:

[0011] The application discloses a battery assembly supporting cushion structure, which comprises a shell and a main body rubber damping unit supported in the shell. The main body rubber damping unit comprises a core body and a rubber body. The rubber body is arranged between the core body and the shell. The inner wall of the shell is symmetrically arranged in a conical shape to improve the stiffness of the main body rubber damping unit in X / Y / Z three directions and improve the supporting capacity in the corresponding directions. The shell is a half-open shell comprising an open end and a mounting end. The open end is provided with a limiting structure. One end of the limiting structure extends into the main body rubber damping unit to limit the position of the main body rubber damping unit and the shell.

[0012] The battery assembly supporting cushion structure of the application uses the main body rubber damping unit for vibration resistance and buffering of the battery assembly. Through the design of the main body rubber damping unit, the stiffness in X / Y / Z three directions can be effectively improved, and the supporting capacity can be enhanced, which is especially suitable for the working conditions of the battery.

[0013] The inner wall of the additional shell of the battery assembly supporting cushion structure of the application is symmetrically arranged in a conical shape, which provides installation space for the rubber body and allows one side of the main body rubber to be symmetrically and obliquely arranged. This structure ensures that the entire supporting cushion structure can be uniformly stressed in all directions and effectively buffered.

[0014] The battery assembly supporting cushion structure can be used to reduce and control the vibration and impact transmitted to the power battery and the rubber part serving as the supporting function.

[0015] Further, the core body comprises an outer surface and a mounting surface arranged opposite to the outer surface; the outer surface is a center-symmetrical polygonal structure, and a mounting hole one is arranged at the center of the polygonal structure.

[0016] Further, a connecting vertical surface and a connecting inclined surface are arranged between the outer surface and the mounting surface of the core body, so that the whole core body is conical and is adapted to the shell. This structure makes the core body and the shell as close as possible, thereby increasing the use reliability of the whole structure.

[0017] Further, the connecting vertical surface comprises a groove-shaped surface and a rectangular surface; the groove-shaped surface is connected between the outer surface and the mounting surface, is arranged from the edge of the core body to the center along the Y direction, and comprises an edge one close to the outer surface and an edge two close to the mounting surface; and groove-shaped walls are arranged opposite to the two sides of the groove-shaped surface.

[0018] Further, along the X direction, the rectangular surfaces are arranged opposite to each other at the edges of the core body; a connecting surface is further arranged between the groove-shaped surface and the rectangular surface; and the connecting surface extends to the side of the mounting surface and forms a curved surface section between the adjacent rectangular surfaces.

[0019] Further, the connecting inclined surface comprises a closed transition conical surface connected between the rectangular surface and the mounting surface.

[0020] Further, the rubber body comprises a cavity matched with the core body and a bottom surface abutting against the shell; a mounting hole two is arranged at the center of the cavity, and the size of the mounting hole two is greater than that of the mounting hole one.

[0021] Further, a buffer structure protruding outwardly to the shell is arranged at the bottom surface, and the buffer structure is arranged parallel to the closed transition conical surface; and an intermediate partition plate is further arranged in the rubber body, and the intermediate partition plate is made of metal material or composite fiber plate.

[0022] Further, the limiting structure comprises a transverse protruding part connected to the inner side of the shell, and a clamping groove is arranged on the side wall of the core body, and the transverse protruding part is embedded in the clamping groove to limit the movement of the core body.

[0023] Further, the outer surface of the core body is a hexahedral structure, and the mounting surface is a rhombic structure.

[0024] Further, the shell is a cubic structure, and the groove-shaped surface and the vertical surface are parallel to the side wall of the shell, respectively.

[0025] Another object of the present application is to disclose the application of the above-mentioned battery assembly supporting cushion structure, which is used in the heavy truck power battery assembly supporting system to improve the vibration attenuation of the battery system.

[0026] The present application has the following advantages compared with the prior art:

[0027] According to the characteristics that the heavy truck power battery system itself is heavy (the single side weight reaches about 2 tons) and both sides of the frame need to be arranged to provide sufficient power input for the operation of the whole vehicle, the battery assembly supporting cushion structure is specially designed; on the one hand, the battery frame is connected with the frame girder; on the other hand, the suspended rubber main structure can effectively attenuate the vibration and impact transmitted by the road; the battery system is protected to run well under various road conditions; at the same time, the suspended system itself has excellent reliability. The structure can realize lifelong maintenance free, and eliminates the regular maintenance work of the driver.

[0028] The battery assembly supporting cushion structure of the present application is simple to install, and can effectively improve the vibration attenuation of the battery system. The rubber bodies are arranged in pairs and symmetrically with the conical shell, preferably, four rubber bodies are connected together as a damping system; the vibration and impact transmitted by the road to the battery can be effectively attenuated.

[0029] The battery assembly supporting cushion structure can be used to reduce and control the vibration and impact transmitted to the power battery, and the rubber part plays a supporting role.

[0030] In summary, the battery assembly supporting cushion structure can improve the reliability of the whole battery system, and has a wide market prospect. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The overall structure schematic diagram of the battery assembly supporting cushion structure described in Embodiment 1.

[0032] Figure 2 The battery assembly supporting cushion structure described in Embodiment 1. Figure 1 The top view of the battery assembly supporting cushion structure described in Embodiment 1.

[0033] Figure 3 The A-A direction sectional structure schematic diagram of the battery assembly supporting cushion structure described in Embodiment 1. Figure 2

[0034] The B-B direction sectional structure schematic diagram of the battery assembly supporting cushion structure described in Embodiment 1. Figure 4 Figure 2 The assembly structure schematic diagram of the battery assembly supporting cushion structure described in Embodiment 1.

[0035] Figure 5 Figure 3 The assembly structure schematic diagram of the battery assembly supporting cushion structure described in Embodiment 1. Figure 1

[0036] Figure 6 The assembly structure schematic diagram of the battery assembly supporting cushion structure described in Embodiment 1. Figure 3 Figure 2 The assembly structure schematic diagram of the battery assembly supporting cushion structure described in Embodiment 1.​​​​

[0037] Figure 7 Example 2 is a heavy-duty truck power battery assembly support system with the aforementioned battery assembly support pad structure.

[0038] Among them, 1-shell, 11-open end, 12-mounting end, 2-main rubber vibration damping unit, 21-core, 211-outer surface, 212-mounting surface, 22-rubber body, 221-cavity, 222-bottom surface, 223-mounting hole two, 23-mounting hole one, 25-groove surface, 251-edge one, 252-edge two, 26-rectangular surface, 261-curved surface segment, 27-connecting surface, 271-curved surface segment, 28-slot, 3-buffer structure, 4-limiting structure, 41-lateral protrusion, 5-middle partition, 9-empty, 100-battery assembly, 200-locking nut, 300-battery assembly connecting bracket, 500-connecting core rod, 600-vehicle frame. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings. The drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Example 1

[0040] like Figures 1-6 As shown, the battery assembly support pad structure is a brand-new design, especially for the development of heavy-duty truck power battery systems. The structural adjustments of the outer shell and core improve the stability of the entire product while ensuring the product's load-bearing capacity, thus guaranteeing the product's service life.

[0041] The battery assembly support pad structure includes an outer shell 1 and a main rubber vibration damping unit 2 carried inside the outer shell 1; the main rubber vibration damping unit 2 is separately set from the outer shell 1 and is pre-compressed in the Y direction by locking the nut.

[0042] Specifically, the main rubber damping unit 2 comprises a core body 21 and a rubber body 22; the rubber body 22 is vulcanized between the core body 21 and the shell 1, and the inner wall of the shell 1 is arranged in a symmetrical conical shape to improve the stiffness of the main rubber damping unit 2 in the X / Y / Z three directions and improve the supporting capacity in the corresponding directions; the shell 1 in the embodiment is a cube structure, and the shell 1 is a half-open shell at one end, comprising an open end 11 and a mounting end 12, the open end 11 is provided with a limiting structure 4, one end of the limiting structure 4 extends into the main rubber damping unit 2, and the position of the main rubber damping unit 2 and the shell 1 is limited. The limiting structure 4 comprises a transverse protruding portion 41 connected to the inner side of the shell, and the side wall of the core body 21 is provided with a clamping groove 28, and the transverse protruding portion 41 is embedded in the clamping groove 28 to limit the movement of the core body 21, and protect the system from excessive movement to interfere with the movement of other accessories or even damage.

[0043] The shell 1 and the core body 21 can be made of cast steel, ductile cast iron or cast aluminum, and are integrally formed by casting. The core body 21 in the embodiment is a special polyhedral structure, comprising an outer surface 211 and a mounting surface 212 opposite to the outer surface 211; the cross section of the outer surface 211 is a central symmetrical polygonal structure, which is octagonal in the embodiment; a mounting hole one 23 is arranged at the center of the polygonal structure, which is used for mounting and connecting the core rod 6 to mount the battery assembly supporting cushion structure on the frame body. The outer surface 211 and the mounting surface 212 of the core body 21 in the embodiment are provided with a connecting vertical surface and a connecting inclined surface, so that the whole core body 21 is conical and matched with the shell 1.

[0044] The connecting vertical surface comprises a groove surface 25 and a rectangular surface 26; the groove surface 25 connects the outer surface 211 and the mounting surface 212, and is arranged from the edge to the center of the core body 21 along the Y direction, the groove surface 25 comprises an edge one 251 close to the outer surface 211 and an edge two 252 close to the mounting surface 212, and the two sides of the groove surface 25 are oppositely provided with groove walls.

[0045] Along the X direction, the rectangular surface 26 is oppositely arranged at the edge of the core body 21, and a connecting surface 27 is further arranged between the groove surface 25 and the rectangular surface 26, the connecting surface 27 extends to one side of the mounting surface 212, and forms a curved surface section 271 between adjacent rectangular surfaces 26, which is V-shaped in the embodiment. The connecting inclined surface comprises a rectangular surface 26 and a closed transition conical surface connected between the rectangular surface 26 and the mounting surface 212.

[0046] The whole of the core 21 can be divided into two parts, a vertical direction extending polyhedral layer close to the outer surface 211 side, which is composed of rectangular surface 26 and connecting surface 27 connecting rectangular surface 26, and the groove surface 25 is inclined to connect the outer surface 211 and the mounting surface 212. Not only can the whole soft pad structure be lightened, but also can be matched with the inner wall structure of the shell, so that the core 21 can be effectively matched with the inner wall of the shell, and the convenience of assembly and the safety and stability of use are increased. Due to the structural design of the groove surface 25, the limiting structure 4 is also provided with an assembly position, and the position of each part can be intuitively judged during installation, saving the installation time.

[0047] The groove surface 25 of the core 21 of the embodiment is an inner recess structure matched with the limiting structure 4, and the limiting structure 4 is a transverse protruding part 41, which can be a wedge-shaped block. In order to install conveniently and uniformly, the limiting structure 4 can be installed at the center position of one side wall of the shell, and a bearing slope is arranged on the inner wall of the side wall on the other side, the slope of the bearing slope is consistent with the slope of the buffer structure 3, so as to cooperate with the support main body rubber damping unit 2. The whole main body rubber damping unit 2 protrudes from the shell 1, and the corners of the shell 1 are left with empty spaces 9 to provide accommodation space for the deformation of the rubber 22.

[0048] The rubber body 22 in the embodiment is arranged on the mounting surface 212 side of the core 21, and is shaped with the core 21. It includes a cavity 221 adhered to the core 21 and a bottom surface 222 abutting against the shell 1. The cavity 221 is provided with a mounting hole two 223 at the center, and the size of the mounting hole two 223 is larger than that of the mounting hole one 23.

[0049] In order to install more reliably with the shell 1, the buffer structure 3 protruding outward from the shell 1 is arranged at the bottom surface 222. The buffer structure 3 of the embodiment is approximately a cuboid, and the buffer structure 3 is arranged in parallel with the closed transition conical surface. In order to enhance the strength of the whole rubber body 22, an intermediate partition plate 5 is further arranged inside the rubber body 22. The intermediate partition plate 5 is made of metal material or composite fiber plate, and is formed by stamping. The material can be steel or aluminum for stamping. The partition plate is vulcanized with the rubber to improve the rigidity of the soft pad itself. As another solution, the intermediate partition plate 5 can be removed, and the thickness of the rubber body 22 can be increased or decreased. Embodiment 2

[0050] The battery assembly supporting soft pad structure of embodiment 1 is used for heavy truck power battery assembly supporting system to improve the vibration attenuation of the battery system.

[0051] As Figure 7As shown, the heavy truck power battery assembly supporting system with the battery assembly supporting cushion structure of the embodiment includes a battery assembly 100, a locking nut 200, a battery assembly connecting bracket 300, the battery assembly supporting cushion structure shown in Embodiment 1, a connecting core rod 500, and a vehicle frame 600.

[0052] When the system assembly is assembled, the battery assembly 100 is arranged on both sides of the vehicle frame 600; the battery assembly connecting bracket 300 is locked with the battery assembly 100 through bolts, the connecting core rod 500 penetrates through both sides of the vehicle frame 600 and is connected with the battery assembly connecting bracket 300 cushion through the locking nut 200; and the battery assembly supporting cushion is arranged between the battery assembly connecting bracket 300 connecting bracket and the vehicle frame 600, so as to realize the flexible connection between the battery assembly 100 and the vehicle frame 600.

[0053] The connecting core rod 500, the battery assembly supporting cushion structure, and the battery assembly connecting bracket 300 connecting bracket are rigidly connected in sequence, and finally the locking nut 200 is tightened to realize the connection of the battery assemblies on both sides, while effectively preventing the nut from loosening during movement.

[0054] The connecting support system of the power battery is connected to the connecting outer surface 211 on one side of the core body 21 and locked on the mounting surface 212 on the other side, so that the left and right battery assembly supporting cushions can be connected together through the connecting core rod 500 in the middle, and the reliability of the connection can be ensured by locking and pre-tightening through the locking nut, so that the loosening problem caused by reciprocating vibration can be avoided, and the system stiffness can also be ensured.

[0055] The battery assembly supporting cushion structure and the vehicle frame 600 can realize end face contact after the locking nut 200 is screwed to the bottom, realizing the effect of horizontal pre-compression; on the one hand, it can realize the tight connection of the rubber shock-absorbing main battery assembly; on the other hand, the service life of the rubber body can be effectively improved by pre-compressing the rubber body. The battery system can run well under various road conditions; at the same time, the suspension system itself has excellent reliability. The structure can realize lifelong maintenance-free, eliminating the regular maintenance work of the driver.

[0056] The above is only an embodiment of the present application, and the present application is not limited to this embodiment. The specific structure and characteristics of the scheme and other common knowledge are not described in detail. It should be noted that for those skilled in the art, without departing from the content of the present application, a number of modifications and improvements can be made, which should be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in this application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A battery assembly support cushion structure, characterized by, The application relates to a main rubber damping unit (2) and a shell (1) for supporting the main rubber damping unit (2) inside the shell (1); the main rubber damping unit (2) comprises a core body (21) and a rubber body (22); the rubber body (22) is arranged between the core body (21) and the shell (1); the inner wall of the shell (1) is arranged in a symmetrical conical shape, so that the rigidity of the main rubber damping unit (2) in X / Y / Z three directions is improved, and the supporting capacity in the corresponding direction is improved; the shell (1) is a half-open shell with one end, comprising an open end (11) and a mounting end (12); the open end (11) is provided with a limiting structure (4); one end of the limiting structure (4) extends into the main rubber damping unit (2), so that the position of the main rubber damping unit (2) and the shell (1) is limited. The core body (21) comprises an outer surface (211) and a mounting surface (212) arranged opposite to the outer surface (211); the cross section of the outer surface (211) is a center-symmetrical polygonal structure; the polygonal structure is provided with a mounting hole one (23) in the center. A connecting vertical surface and a connecting inclined surface are arranged between the outer surface (211) and the mounting surface (212) of the core body (21), so that the whole core body (21) is conical and is matched with the shell (1). The connecting vertical surface comprises a groove surface (25) and a rectangular surface (26); the groove surface (25) is connected between the outer surface (211) and the mounting surface (212) and is arranged in a tight manner from the edge of the core body (21) to the center along the Y direction; the groove surface (25) comprises an edge one (251) close to the outer surface (211) and an edge two (252) close to one side of the mounting surface (212); the two sides of the groove surface (25) are oppositely provided with groove walls.

2. The battery assembly support cushion structure of claim 1, wherein, Along the X direction, the rectangular surfaces (26) are oppositely arranged at the edges of the core body (21); a connecting surface (27) is further arranged between the groove surface (25) and the rectangular surface (26); the connecting surface (27) extends to one side of the mounting surface (212) and forms a curved surface section (261) between adjacent rectangular surfaces (26).

3. The battery assembly support cushion structure of claim 2, wherein, The connecting inclined surface comprises a rectangular surface (26) and a closed transition conical surface connected between the rectangular surface (26) and the mounting surface (212).

4. The battery assembly support cushion structure of claim 3, wherein, The rubber body (22) comprises a cavity (221) combined with the core body (21) and a bottom surface (222) abutting against the shell (1); the cavity (221) is provided with a mounting hole two (223) in the center; the size of the mounting hole two (223) is larger than that of the mounting hole one (23).

5. The battery assembly support cushion structure of claim 4, wherein, The bottom surface (222) is provided with a buffer structure (3) protruding outward to the shell (1); the buffer structure (3) is arranged in parallel with the closed transition conical surface; an intermediate partition plate (5) is further arranged in the rubber body (22); the intermediate partition plate (5) is made of metal material or composite fiber plate.

6. The battery assembly support cushion structure of any one of claims 1-5, wherein, The limiting structure (4) comprises a transverse protruding part (41) connected to the inner side of the shell; the sidewall of the core body (21) is provided with a clamping groove (28); the transverse protruding part (41) is embedded in the clamping groove (28), so as to limit the movement of the core body (21).

7. The battery assembly support cushion structure of claim 6, wherein, The main rubber damping unit (2) is arranged separately from the shell (1), and pre-compression in the Y direction is realized through a locking nut.

Images