CN207450019U - A kind of attachment device of bushing, battery pack and vehicle - Google Patents

Abstract

The utility model discloses a bushing connection device, a battery pack and a vehicle. The bushing connection structure includes an upper pad, a support plate, a buffer sleeve and a mounting seat. The support plate is provided with a first connection hole. A second connection hole is opened on the mounting seat, and the buffer sleeve includes an outer steel sleeve, an inner steel sleeve, a lower rubber sleeve and a bolt sleeve, and the outer steel sleeve, inner steel sleeve, lower rubber pad and bolt sleeve are arranged from top to bottom The sleeves are sequentially extruded to form a whole, and the buffer sleeve passes through the second connection hole and the first connection hole from bottom to top in sequence, and is connected with the upper cushion block located on the upper side of the mounting plate. Using the upper spacer and buffer sleeve structure at the installation place can play a damping role, weaken the excitation transmitted from the vehicle body to the battery pack, protect the good connection between the battery modules and the structure of the battery tray, and thus protect the entire battery pack from damage , improve the service life of the battery pack. The battery pack includes the connecting device of the bushing, and the vehicle includes the battery pack.

Description

Connecting device for bushing, battery pack and vehicle

technical field

The utility model relates to a bushing connection device, a battery pack and a vehicle.

Background technique

Known from document CN201520028136 this type of automobile and its subframe bushing installation structure.

This document discloses a bushing installation structure for an automobile and its subframe, comprising a triangular reinforcement plate connected to the frame and a bushing connected to the subframe, and also includes stud bolts, the stud bolts including bushings segment, a reinforcing plate segment and a flange connecting the bushing segment and the reinforcing plate segment, the bushing segment passes through the inner tube of the bushing and is connected to the vehicle frame, and the flange presses the A bushing; the reinforcing plate section passes through the triangular reinforcing plate, and the triangular reinforcing plate is fastened to the flange.

The disadvantage of the subframe bushing installation structure is that it lacks a vibration energy-absorbing device, which is not conducive to shock absorption and energy absorption of the battery tray. Therefore, the structure of the battery tray needs to be strengthened, which will increase the weight of the vehicle, which is not conducive to the lightweight of the vehicle.

Utility model content

The utility model aims to solve one of the technical problems in the above-mentioned technologies at least to a certain extent. Therefore, the first object of the present utility model is to provide a connecting device for bushings.

A bushing connection device, comprising an upper cushion block, a support plate, a buffer sleeve and a mounting seat, the support plate is provided with a first connection hole, the mounting seat is provided with a second connection hole, and the buffer sleeve includes an outer The steel sleeve, the inner steel sleeve, the lower rubber sleeve and the bolt sleeve, the outer steel sleeve, the inner steel sleeve, the lower rubber pad and the bolt sleeve are sequentially squeezed and integrated from top to bottom, and the buffer sleeve is sequentially arranged from bottom to top Pass through the second connection hole and the first connection hole, and connect with the upper spacer on the upper side of the mounting plate.

Preferably, the upper spacer includes a gasket and an upper rubber sleeve, and the gasket and the upper rubber sleeve are bonded together.

Preferably, the bottom of the lower rubber sleeve is provided with a base, and the top is provided with a convex portion. A cushion body is provided between the base of the lower rubber sleeve and the convex portion. The base of the lower rubber sleeve, the inner steel sleeve The flanging and the flanging of the outer steel sleeve offset successively from bottom to top.

Preferably, the buffer sleeve passes through the second connection hole and the first connection hole sequentially from bottom to top until the flange of the outer steel sleeve touches against the bottom periphery of the second connection hole, and the protrusion of the lower rubber sleeve passes through the second connection hole. A connecting hole is connected with the connecting hole of the upper rubber sleeve until the lower rubber pad body is against the bottom periphery of the first connecting hole.

Preferably, the connecting device of the bushing also includes a pressure plate, the pressure plate is located on the lower side of the base of the lower rubber sleeve, and the bolts pass through the central hole of the pressure plate, the bolt sleeve in the buffer sleeve and the upper pad in sequence from bottom to top , the pressure plate, the mounting seat, the buffer sleeve, the support plate and the upper pad are fixedly connected with the vehicle body.

Preferably, there is a cavity for placing the buffer sleeve on the mounting base, the cavity is formed by connecting the bottom surface and two side walls, the second connection hole is opened on the bottom surface of the cavity structure, and the bottom surface of the cavity structure The connecting end provided with the mounting base extends outside the cavity structure.

Preferably, a flange is provided on the side wall of the cavity structure, and the support plate is welded and fixed on the flange.

The second purpose of the utility model is to propose a battery pack, including the above-mentioned connection device for a bushing and a battery pack, the battery pack includes a battery pack sealing cover and a battery pack tray, and the battery pack sealing cover is connected to the battery pack The battery pack tray is fixedly connected, and the connecting end of the mounting base is welded and fixed to the bottom of the battery pack tray.

Preferably, the battery pack fixedly connected to the connection end of the mounting seat is fixed on the vehicle body by bolts.

The third object of the present utility model is to provide a vehicle, which includes the above-mentioned battery pack.

The beneficial effects of the utility model are:

The use of the upper spacer and the buffer sleeve structure at the installation can play a damping role, weaken the excitation transmitted from the vehicle body to the battery pack, and protect the good connection between the battery modules and the structural integrity of the battery tray, thereby protecting the entire battery pack from damage , improve the service life of the battery pack. On the other hand, after the excitation transmitted by the body is weakened, the requirements for the structural strength of the battery tray itself can be reduced, that is, when the same requirements are met, part of the reinforcement structure of the battery tray can be reduced, thereby reducing the weight and cost of the battery pack. role.

Description of drawings

Fig. 1 is a schematic structural view of a connecting device for a bushing of the present invention;

Fig. 2 is a schematic exploded view of the connection device structure of a bushing of the present invention;

Fig. 3 is a schematic structural diagram of a battery pack of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

As shown in Figure 1-3, a bushing connection device includes an upper pad 1, a support plate 2, a buffer sleeve 3 and a mounting seat 4, the support plate 2 is provided with a first connection hole 21, and the mounting seat 4 is provided with a The second connection hole 41, the buffer sleeve includes the outer steel sleeve 31, the inner steel sleeve 32, the lower rubber sleeve 33 and the bolt sleeve 34, the outer steel sleeve 31, the inner steel sleeve 32, the lower rubber sleeve 33 and the bolt sleeve 34 from top to bottom Sequentially extruded sleeves are integrated, and the buffer sleeve 3 passes through the second connection hole 41 and the first connection hole 21 sequentially from bottom to top, and connects with the upper pad on the upper side of the mounting plate.

Optimally, the bottom of the lower rubber sleeve 33 is provided with a base 331, and its top is provided with a convex portion 333. A cushion body 332 is arranged between the base 331 and the convex portion 333 of the lower rubber sleeve. The lower rubber sleeve base 331, the inner steel sleeve The flanging 321 of the outer steel sleeve and the flanging 311 of the outer steel sleeve offset successively from bottom to top.

The upper block includes a gasket 11 and an upper rubber sleeve 12. The gasket 11 is located above the upper rubber sleeve 12 and bonded together with the upper rubber sleeve 12. The upper rubber sleeve 12 is located between the support plate 2 and the gasket 11, effectively It plays a shock absorbing role, avoiding the direct connection between the battery pack support plate and the 2 body structure, and effectively playing a shock absorbing role. The gasket 11 is located between the upper rubber sleeve 12 and the body structure, avoiding the gap between the upper rubber sleeve 12 and the body structure. The direct connection and contact between them avoids the damage of the upper rubber sleeve 12 and effectively improves the service life of the upper rubber sleeve 12.

The bolt sleeve 34 is squeezed into the center hole 334 of the lower rubber sleeve 33; the lower rubber sleeve 33 is squeezed into the center hole 322 of the inner steel sleeve 32, and the base 331 of the lower rubber sleeve is offset against the flange 321 of the inner steel sleeve; the outer steel sleeve The central hole 312 of 31 is squeezed and sleeved on the inner steel sleeve 32 until its flange 311 and the inner steel sleeve flange 321 are offset, and the bolt sleeve 34, the lower rubber sleeve 33, the inner steel sleeve 32 and the outer steel sleeve 31 are sequentially connected The buffer sleeve 3 is formed as a whole. The buffer sleeve 3 passes through the second connection 41 hole on the mounting seat until the flange 311 of the outer steel sleeve abuts against the bottom surface of the mounting seat 2. At this time, the convex part 333 of the lower rubber sleeve passes through the first connection. The hole 21 passes through the central hole 121 of the upper rubber sleeve and is connected to the upper cushion block 1 , so that the lower rubber sleeve body 332 is in contact with the bottom circumference of the first connecting hole 121 .

The support plate 2 and the mounting seat 4 are welded and fixed, and the distance between the first connection hole 21 and the second connection hole 41 is slightly smaller than the height of the lower rubber sleeve body 332. Optimally, this is beneficial to the connection between the lower rubber sleeve 33 and the support plate 2 and The connection between the mounting base 4 is more sufficient, which can make the lower rubber sleeve 33 better play the role of shock absorption and energy absorption, and the support plate 2 and the mounting base 4 are welded and fixed with the battery pack, so that the buffer sleeve 3 can be better It can play the role of shock absorption and protect the good connection between the battery modules.

The battery pack installation structure also includes a pressing plate 5, which abuts against the bottom flange 3312 of the lower buffer pad, and the axes of the upper cushion block 1, the first connecting hole 21, the buffer sleeve 3, the second connecting hole 41 and the pressing plate 5 coincide. The bolts pass through the pressing plate 5, the bolt sleeve 34 and the upper block 1 in order to fix the battery pack with the vehicle body structure. Optimally, the structure of the upper block 1 and the buffer sleeve 3 between the battery pack and the body can play a damping role, effectively weakening the excitation transmitted from the body to the battery pack, thereby avoiding damage to the entire battery pack, and effectively improving the battery pack. lifespan.

Using the structure of the upper pad 1 and the buffer sleeve 3 at the installation place can play a damping role, weaken the excitation transmitted from the vehicle body to the battery pack, protect the good connection between the battery modules and the structure of the battery tray, and thus protect the entire battery pack Damaged, prolong the service life of the battery pack. On the other hand, after the excitation transmitted by the body is weakened, the requirements for the structural strength of the battery tray itself can be reduced, that is, when the same requirements are met, part of the reinforcement structure of the battery tray can be reduced, thereby reducing the weight and cost of the battery pack. role.

A battery pack, including the above-mentioned connection device of a bushing and a battery pack 6, the battery pack includes a battery pack sealing cover 61 and a battery pack tray 62, the battery pack sealing cover 61 is fixedly connected to the battery pack tray 62, the installation The seat connecting end 414 is welded and fixed to the bottom of the battery pack tray 62 .

Optimally, the battery pack 6 fixedly connected to the connecting end 414 of the mount is fixed on the vehicle body by bolts.

Another embodiment of the present utility model provides a vehicle, which includes the above-mentioned battery pack.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limitations of the present invention, and those skilled in the art are within the scope of the present invention. Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (10)

1. A bushing connecting device, characterized in that it comprises an upper pad (1), a support plate (2), a buffer sleeve (3) and a mounting seat (4), and the support plate (2) is provided with a second A connection hole (21), a second connection hole (41) is provided on the mounting seat (4), and the buffer sleeve includes an outer steel sleeve (31), an inner steel sleeve (32), a lower rubber sleeve (33) and The bolt sleeve (34), the outer steel sleeve (31), the inner steel sleeve (32), the lower rubber sleeve (33) and the bolt sleeve (34) are sequentially extruded into one body from top to bottom, and the buffer sleeve (3) Go through the second connection hole (41) and the first connection hole (21) sequentially from bottom to top, and connect with the upper pad located on the upper side of the mounting plate. 2. A bushing connection device according to claim 1, characterized in that, the upper pad (1) comprises a gasket (11) and an upper rubber sleeve (12), and the gasket (11) It is bonded together with the upper rubber sleeve (12). 3. A bushing connection device according to claim 1, characterized in that, the bottom of the lower rubber sleeve (33) is provided with a base (331), and its top is provided with a convex portion (333), the A cushion body (332) is arranged between the base (331) and the convex part (333) of the lower rubber sleeve, the base (331) of the lower rubber sleeve, the flange (321) of the inner steel sleeve and the flange of the outer steel sleeve The sides (311) offset successively from bottom to top. 4. A connecting device for bushings according to claim 3, characterized in that, the buffer sleeve (3) passes through the second connecting hole (41) and the first connecting hole (21) sequentially from bottom to top ), until the outer steel sleeve flanging (311) and the bottom periphery of the second connection hole (41) are against each other, and the lower rubber sleeve protrusion (333) passes through the first connection hole (21) and the connection hole of the upper rubber sleeve ( 121) until the lower rubber sleeve (33) abuts against the bottom periphery of the first connecting hole (21). 5. A bushing connection device according to claim 4, characterized in that it further comprises a pressing plate (5), the pressing plate (5) is located on the lower side of the lower rubber bushing base (331), and the bolts are connected from the bottom Go through the center hole of the pressure plate (5), the bolt sleeve (34) in the buffer sleeve (3) and the upper cushion block (1) successively, and install the pressure plate (5), the mounting seat (4), the buffer sleeve (3) ), the support plate (2) and the upper pad (1) are fixedly connected with the vehicle body. 6. The connecting device of a bushing according to claim 1, characterized in that, there is a cavity for placing the buffer sleeve (3) on the mounting seat (4), and the cavity is defined by the bottom surface (411) The second connection hole (41) is opened on the bottom surface (411) of the cavity structure, and the bottom surface (411) of the cavity structure is provided with a mounting base connecting end (414) extending to outside the cavity structure. 7. A connecting device for bushings according to claim 6, characterized in that, a flange (415) is provided on the side wall (412) of the cavity structure, and the support plate (2) is welded and fixed on on the flange (415). 8. A battery pack, comprising a bushing connection device and a battery pack (6) according to any one of claims 1 to 7, said battery pack comprising a battery pack sealing cover (61) and a battery pack tray (62), the battery pack sealing cover (61) is fixedly connected to the battery pack tray (62), and the connecting end of the mounting seat (414) is welded and fixed to the bottom of the battery pack tray (62). 9. A battery pack according to claim 8, characterized in that the battery pack (6) fixedly connected to the connection end (414) of the mounting seat is fixed on the vehicle body by bolts. 10. A vehicle, characterized in that the vehicle comprises a battery pack according to any one of claims 8 to 9.