CN217881721U

CN217881721U - New energy battery box with composite layer structure

Info

Publication number: CN217881721U
Application number: CN202221172902.XU
Authority: CN
Inventors: 黄长远; 傅孙明
Original assignee: FUJIAN MINFA ALUMINIUM Inc
Current assignee: FUJIAN MINFA ALUMINIUM Inc
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-11-22
Anticipated expiration: 2032-05-16

Abstract

The utility model relates to an accessory field of new energy automobile battery, concretely relates to composite bed structure's new energy battery box, last box and lower box including seal installation, the bottom of box is provided with the guard plate down, be provided with four at least guide assembly that are used for both to be connected between guard plate and the lower box, the rigid coupling has the buffer spring subassembly between guard plate and the lower box, the lower box includes bottom plate, rigid coupling curb plate around the bottom plate and is used for installing the turn-ups of box, the curb plate includes external fixed plate, internal fixed plate and connects reinforcing floor between them, each guide assembly sets up between the external fixed plate and the internal fixed plate of curb plate. The utility model discloses be applied to new energy automobile, solved the not enough problem of its battery box shock resistance.

Description

New energy battery box with composite layer structure

Technical Field

The utility model relates to an accessory field of new energy automobile battery, concretely relates to composite bed structure's new forms of energy battery box.

Background

In the prior art, a battery box structure applied to new energy, as shown in chinese patent application CN 113206341A, includes: the device comprises an upper box body, a lower box body, a connecting piece and a fixing piece; the upper box body is provided with a first side wall and a first eave part protruding from the first side wall along the circumferential direction, and the lower box body is provided with a second side wall and a second eave part protruding from the second side wall along the circumferential direction; the first eaves part and the second eaves part are oppositely arranged in the vertical direction, the first eaves part is provided with a first connecting hole, and the second eaves part is provided with a second connecting hole and a mounting hole which is arranged at an interval with the second connecting hole; the connecting piece penetrates through the first connecting hole and the second connecting hole to be fixedly connected with the upper box body and the lower box body; the fixing piece penetrates through the mounting hole to mount the lower box body on external equipment; the material density of the lower box body is greater than that of the upper box body; the height of the first side wall in the up-down direction is greater than the height of the second side wall in the up-down direction. Structurally, the lower box body for bearing is made of a material with density higher than that of the upper box body, so that the weight of the battery box is reduced, and the structural strength is ensured;

when being applied to the new energy automobile field, the lower box body as the bearing part not only needs to cope with jolting and shaking of the automobile body during driving, but also ensures that the bottom of the battery box has good cushioning and protective effects on the battery pack when being impacted or impacted by the outside.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a new forms of energy battery box of composite bed structure has solved the not enough problem of battery box shock resistance.

In order to achieve the purpose, the utility model is realized by the following technical proposal:

the utility model provides a new forms of energy battery box of composite bed structure, includes seal installation's last box and lower box, the bottom of box is provided with the guard plate down, be provided with four at least guide assembly that are used for both to connect between guard plate and the lower box, the rigid coupling has the buffer spring subassembly between guard plate and the lower box, the lower box includes bottom plate, rigid coupling curb plate and the turn-ups that is used for installing the box around the bottom plate, the curb plate includes external fixation board, internal fixation board and connects reinforcing floor between them, each guide assembly sets up between the external fixation board and the internal fixation board of curb plate.

Preferably, the protection plate is provided with a plurality of drainage holes.

Preferably, the guide assembly is a self-lubricating guide post assembly.

Preferably, the protection plate is provided with protruding portions and recessed portions which are distributed in a staggered mode.

Preferably, the buffer spring assembly is a whole net spring.

Preferably, the reinforcing rib plate is a broken line structure, and the ends of the broken line of the reinforcing rib plate are respectively connected with the outer fixing plate and the inner fixing plate.

Preferably, the circumferential side of the protection plate is bent upward to wrap the lower case.

By adopting the technical scheme, the beneficial effects of the utility model are that:

the protection plate is arranged on the lower box body, the bottom surface of the lower box body serving as a bearing part is protected, the lower box body is fixed through the guide assembly during installation and is elastically connected through the buffer spring assembly, and energy can be absorbed through the buffer spring assembly when the battery box is greatly impacted in the states of bottom collision and the like of a vehicle;

to the direction subassembly, with its installation in the inside of box down, carry out sufficient protection to the direction subassembly after the installation, and when the atress, most impact force is absorbed by buffer spring subassembly, and partly then conduct the curb plate of box down by the direction subassembly in, can not directly exert pressure to battery body, guaranteed battery body's structural security.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a first embodiment of the present invention;

fig. 2 is a schematic top view of a box body according to an embodiment of the present invention;

fig. 3 is a schematic sectional view of a second embodiment of the present invention.

Reference numerals: 1. an upper box body; 2. a lower box body; 21. a base plate; 22. a side plate; 221. an outer fixing plate; 222. an inner fixing plate; 223. a reinforcing rib plate; 23. flanging; 3. a protection plate; 31. a guide assembly; 32. a buffer spring assembly; 33. a drain hole; 34. a boss portion; 35. a recessed portion.

Detailed Description

The following detailed description will be given with reference to specific embodiments, so as to solve the technical problems by applying technical means, and to fully understand and implement the technical effects of the present invention.

Example one

Referring to fig. 1 and 2, a new energy battery box with a composite layer structure includes an upper box body 1 and a lower box body 2 which are hermetically mounted, a protection plate 3 is arranged at the bottom of the lower box body 2, four guide assemblies 31 for connecting the protection plate 3 and the lower box body 2 are arranged between the protection plate 3 and the lower box body 2, a buffer spring assembly 32 is fixedly connected between the protection plate 3 and the lower box body 2, the lower box body 2 includes a bottom plate 21, side plates 22 fixedly connected around the bottom plate 21, and flanges 23 for mounting the upper box body 1, and specifically, the buffer spring assembly 32 is a whole screen spring; the whole net spring structure is a whole body, can cover most of the area of the bottom plate 21, can be contracted as a whole body when stressed, has light whole weight, cannot influence the whole weight of the battery box, and has relatively low material cost;

the side plate 22 comprises an outer fixing plate 221, an inner fixing plate 222 and a reinforcing rib plate 223 connecting the outer fixing plate and the inner fixing plate, and each guide assembly 31 is arranged between the outer fixing plate 221 and the inner fixing plate 222 of the side plate 22; specifically, the guide assembly 31 is a self-lubricating guide pillar assembly, one end of a guide sleeve of the guide assembly is embedded in the side plate 22, and the guide pillar extends out of the side plate 22 and is fixedly connected with the protection plate 3, so that the service life of a self-lubricating structure can be ensured;

structurally, the protection plate 3 arranged on the lower box body 2 protects the bottom surface of the lower box body 2 serving as a bearing part, the lower box body is fixed through the guide assembly 31 during installation and is elastically connected through the buffer spring assembly 32, energy can be absorbed through the buffer spring assembly 32 when the battery box is greatly impacted under the conditions of bottom collision of a vehicle and the like, compared with the traditional rigid structure protection, the protection plate has good buffering, the direct impact of a battery body in the battery box is avoided, the impact resistance is strong, and the protection performance is high;

the guide assembly 31 is arranged in the lower box body 2, the guide assembly 31 is sufficiently protected after being arranged, when the guide assembly 31 is stressed, most impact force is absorbed by the buffer spring assembly 32, and a part of the impact force is transmitted into the side plate 22 of the lower box body 2 through the guide assembly 31, so that the direct pressure on the battery body is avoided, and the structural safety of the battery body is ensured; in response to the stress, the reinforcing rib 223 has a broken line structure, and the ends of the broken line connect the outer fixing plate 221 and the inner fixing plate 222, respectively, so as to improve the structural strength of the whole side plate 22;

meanwhile, in order to provide structural safety under extreme conditions such as wading, a plurality of drain holes 33 (only one row is shown in fig. 1) are formed in the protection plate 3, and the drain holes 33 are uniformly distributed on the surface of the protection plate 3.

Example two

Referring to fig. 3, in the present embodiment, the protection plate 3 has protrusions 34 and recesses 35 distributed in a staggered manner; the protrusions 34 and the recesses 35 are regular block-shaped undulating structures, which increase the structural strength of the fender 3 itself compared to a planar structure;

in this embodiment, the circumference of the protection plate 3 is bent upwards to wrap the lower box body 2; specifically, the part bent upwards is not structurally connected with the lower box body 2 in a normal state, and meanwhile, the lower box body 2 is not extruded after being stressed and compressed; in addition, the water discharging hole 33 is also disposed close to the bending position, so as not to affect the processing of the protrusion 34 and the recess 35.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a new forms of energy battery box of composite bed structure, includes sealed installation's last box (1) and lower box (2), its characterized in that: the bottom of lower box (2) is provided with guard plate (3), be provided with at least four guide assembly (31) that are used for both to connect between guard plate (3) and lower box (2), the rigid coupling has buffer spring subassembly (32) between guard plate (3) and lower box (2), lower box (2) include bottom plate (21), rigid coupling curb plate (22) and turn-ups (23) that are used for installing box (1) around bottom plate (21), curb plate (22) include outer fixed plate (221), interior fixed plate (222) and connect reinforcing floor (223) between them, each guide assembly (31) set up between outer fixed plate (221) and interior fixed plate (222) of curb plate (22).

2. The new energy battery box of composite layer structure according to claim 1, characterized in that: the protection plate (3) is provided with a plurality of drain holes (33).

3. The new energy battery box of composite layer structure according to claim 1, characterized in that: the reinforcing rib plate (223) is of a broken line structure, and the ends of the broken line of the reinforcing rib plate are respectively connected with the outer fixing plate (221) and the inner fixing plate (222).

4. The new energy battery case of composite layer structure as set forth in claim 1, 2 or 3, wherein: the protection plate (3) is provided with protruding parts (34) and recessed parts (35) which are distributed in a staggered mode.

5. The new energy battery case of composite layer structure according to claim 1, 2 or 3, wherein: the buffer spring assembly (32) is a whole net spring.

6. The new energy battery case of composite layer structure according to claim 1, 2 or 3, wherein: the guide assembly (31) is a self-lubricating guide pillar assembly.

7. The new energy battery case of composite layer structure as set forth in claim 1, 2 or 3, wherein: the peripheral sides of the protection plates (3) are bent upwards to wrap the lower box body (2).