阅读说明：本技术 一种仓储式电动车电池包集成结构 (Storage type electric vehicle battery pack integrated structure ) 是由 郭大洲 陈智家 杨治会 曹力 朱江明 于 2021-06-25 设计创作，主要内容包括：本发明公开了一种仓储式电动车电池包集成结构,涉及新能源汽车技术领域；包括电池组件、用以支撑电池组件的底板组件、用以支撑底板组件的边框组件、盖在电池组件上的上盖组件；所述边框组件包括位于电池组件相对两侧的门槛梁总成、固接在门槛梁总成一端之间的前横板总成、固接在门槛梁总成另一端之间的后横板总成和后地板总成、固接在前横板总成相对两侧的A柱总成；所述A柱总成的下端固接在门槛梁总成上。本发明传力途径多,当汽车受到撞击时,力由车头传递到前横板总成,然后部分力传递到A柱总成,然后到车顶,减小电池受力,保护电池。(The invention discloses a storage type electric vehicle battery pack integrated structure, and relates to the technical field of new energy vehicles; the battery pack comprises a battery pack, a bottom plate assembly used for supporting the battery pack, a frame assembly used for supporting the bottom plate assembly, and an upper cover assembly covering the battery pack; the frame component comprises threshold beam assemblies positioned on two opposite sides of the battery component, a front transverse plate assembly fixedly connected between one ends of the threshold beam assemblies, a rear transverse plate assembly and a rear floor assembly fixedly connected between the other ends of the threshold beam assemblies, and A-pillar assemblies fixedly connected on two opposite sides of the front transverse plate assembly; the lower end of the A-pillar assembly is fixedly connected to the threshold beam assembly. The invention has multiple force transmission ways, when the automobile is impacted, the force is transmitted to the front transverse plate assembly from the automobile head, then part of the force is transmitted to the A column assembly and then to the automobile roof, thus reducing the stress of the battery and protecting the battery.)

1. A battery pack integrated structure of a storage type electric vehicle is characterized by comprising a battery assembly, a bottom plate assembly for supporting the battery assembly, a frame assembly for supporting the bottom plate assembly and an upper cover assembly covering the battery assembly;

the frame component comprises threshold beam assemblies positioned on two opposite sides of the battery component, a front transverse plate assembly fixedly connected between one ends of the threshold beam assemblies, a rear transverse plate assembly and a rear floor assembly fixedly connected between the other ends of the threshold beam assemblies, and A-pillar assemblies fixedly connected on two opposite sides of the front transverse plate assembly;

the lower end of the A-pillar assembly is fixedly connected to the threshold beam assembly.

2. The battery pack integrated structure of the storage-type electric vehicle as claimed in claim 1, wherein the bottom plate assembly comprises a bottom plate body, a supporting frame fixedly connected to the edge of the bottom plate body, a cross beam fixedly connected to the upper side of the bottom plate body, a longitudinal beam fixedly connected to the upper side of the bottom plate body, and a reinforcing frame fixedly connected to the lower side of the bottom plate body;

the cross beam and the longitudinal beam divide the area on the upper side of the bottom plate body into four cells.

3. The battery pack integrated structure of the storage-type electric vehicle as claimed in claim 2, wherein the battery assembly comprises four battery modules corresponding to the cells one to one, copper bars for connecting the battery modules in series, and water pipes for cooling the battery modules.

4. The battery pack integrated structure of claim 3, wherein the battery assembly further comprises an insulating block at the end of the battery module, a distribution box at the upper side of the battery module, and a fuse box.

5. The battery pack integrated structure of claim 1, wherein the upper cover assembly comprises a front cover plate, a rear cover plate, and a cover plate beam for covering between the front cover plate and the rear cover plate.

6. The battery pack integrated structure of the storage electric vehicle as claimed in claim 4, wherein a distribution box bracket attached to the distribution box and a module pressing plate attached to the battery module are disposed on the lower side of the upper cover assembly.

7. The battery pack integrated structure of the storage-type electric vehicle as claimed in claim 3, wherein the battery modules are wrapped by an outer wrap frame, the outer wrap frame is slidably connected with the bottom plate body, the battery modules corresponding to two cells adjacent to the front cross plate assembly are named as front battery modules, the other two battery modules are named as rear battery modules, the cross beam is penetrated by a longitudinal connecting rod, the front battery modules and the rear battery modules are connected by the longitudinal connecting rod, the longitudinal connecting rod is slidably connected with the cross beam, the longitudinal beam is penetrated by a transverse connecting rod, the front battery modules are connected by the transverse connecting rod, the rear battery modules are connected by the transverse connecting rod, the longitudinal beam is provided with a long hole for accommodating the transverse connecting rod, and a force application spring for applying a force to the transverse connecting rod towards the transverse plate of the rear assembly is arranged in the long hole, the improved friction wheel structure is characterized in that a rotating shaft is arranged in the cross beam, a rotating wheel is connected to the rotating shaft in a rotating mode, a clamping tooth is fixedly connected to one side of the rotating wheel, a clamping groove is formed in the longitudinal connecting rod, the clamping tooth is located in the clamping groove, a friction wheel is connected to the rotating shaft in a rotating mode, an one-way bearing used for limiting the rotating direction of the friction wheel is arranged between the friction wheel and the cross beam, the rotating wheel is abutted to the friction wheel on one side, a reset spring is arranged on the other side of the rotating wheel, the reset spring is sleeved on the rotating shaft, one end of the reset spring is connected to the inner wall of the cross beam, the other end of the reset spring is connected to the rotating wheel, and the reset spring applies force towards one side of the friction wheel to the rotating wheel to enable the rotating wheel to be tightly pressed on the friction wheel.

8. The battery pack integrated structure of a warehouse-type electric vehicle as claimed in claim 7, wherein a water channel is formed inside the wall of the outer frame, a transverse water channel is formed inside the transverse connecting rod, a longitudinal water channel is formed inside the longitudinal connecting rod, the water channels corresponding to the rear battery modules are communicated through the transverse water channel, the water channels corresponding to the front battery modules are communicated through the transverse water channel, the water channels corresponding to the rear battery modules and the front battery modules are communicated through the longitudinal water channel, and the water pipes are connected with the water channels.

Technical Field

The invention belongs to the technical field of new energy automobiles, and particularly relates to a battery pack integrated structure of a storage type electric vehicle.

Background

In the technical development process of the electric vehicle, the user has higher and higher expectation on endurance, and the battery power is a key factor for determining the endurance of the electric vehicle.

The existing battery pack structure has few force transmission paths, when the vehicle head is impacted, force is directly transmitted to the threshold beam assembly by the front transverse plate assembly and then transmitted to the battery, and the battery is easy to break and explode.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a battery pack integrated structure of a storage type electric vehicle.

In order to achieve the purpose, the invention adopts the following technical scheme:

a battery pack integrated structure of a storage type electric vehicle comprises a battery assembly, a bottom plate assembly used for supporting the battery assembly, a frame assembly used for supporting the bottom plate assembly, and an upper cover assembly covered on the battery assembly; the frame component comprises threshold beam assemblies positioned on two opposite sides of the battery component, a front transverse plate assembly fixedly connected between one ends of the threshold beam assemblies, a rear transverse plate assembly and a rear floor assembly fixedly connected between the other ends of the threshold beam assemblies, and A-pillar assemblies fixedly connected on two opposite sides of the front transverse plate assembly; the lower end of the A-pillar assembly is fixedly connected to the threshold beam assembly.

Preferably, the bottom plate assembly comprises a bottom plate body, a supporting frame fixedly connected to the edge of the bottom plate body, a cross beam fixedly connected to the upper side of the bottom plate body, a longitudinal beam fixedly connected to the upper side of the bottom plate body, and a reinforcing frame fixedly connected to the lower side of the bottom plate body; the cross beam and the longitudinal beam divide the area on the upper side of the bottom plate body into four cells.

Preferably, the battery pack comprises four battery modules which correspond to the grids one to one, a copper bar used for connecting the battery modules in series and a water pipe used for cooling the battery modules.

Preferably, the battery pack further includes an insulating block located at an end of the battery module, a distribution box located on an upper side of the battery module, and a fuse box.

Preferably, the upper cover assembly includes a front cover plate, a rear cover plate, and a cover cross member to cover between the front cover plate and the rear cover plate.

Preferably, a distribution box bracket attached to the distribution box and a module pressing plate attached to the battery module are arranged on the lower side of the upper cover assembly.

Preferably, the outer side of the battery module is wrapped by an outer wrapping frame, the outer wrapping frame is connected with the bottom plate body in a sliding manner, the battery module corresponding to two cells close to the front transverse plate assembly is named as a front battery module, the other two battery modules are named as rear battery modules, a longitudinal connecting rod penetrates through the cross beam, the front battery module is connected with the rear battery module through the longitudinal connecting rod, the longitudinal connecting rod is connected with the cross beam in a sliding manner, a transverse connecting rod penetrates through the longitudinal beam, the front battery modules are connected with each other through the transverse connecting rod, the rear battery modules are connected with each other through the transverse connecting rod, a long hole for accommodating the transverse connecting rod is formed in the longitudinal beam, a force application spring for applying force to the transverse connecting rod towards the rear transverse plate assembly is arranged in the long hole, a rotating shaft is arranged in the cross beam, and a rotating wheel is rotatably connected to the rotating shaft, one side rigid coupling of runner has the latch, be equipped with the draw-in groove on the vertical connecting rod, the latch is located the draw-in groove, it is connected with the friction pulley to rotate in the pivot, be equipped with the one-way bearing that is used for restricting the friction pulley rotation direction between friction pulley and the crossbeam, runner one side is supported and is leaned on the friction pulley, the runner opposite side is equipped with reset spring, reset spring cover is in the pivot, reset spring one end is connected on the crossbeam inner wall, the reset spring other end is connected on the runner, thereby reset spring applys the power towards friction pulley one side to the runner and makes the runner compress tightly on the friction pulley.

Preferably, a water channel is arranged inside the wall of the outer wrapping frame, a transverse water channel is arranged in the transverse connecting rod, a longitudinal water channel is arranged in the longitudinal connecting rod, the water channels corresponding to the rear battery modules are communicated through the transverse water channel, the water channels corresponding to the front battery modules are communicated through the transverse water channel, the water channels corresponding to the rear battery modules and the front battery modules are communicated through the longitudinal water channel, and the water pipes are connected with the water channels.

The invention has the beneficial effects that: 1. the power transmission paths are multiple, when the automobile is impacted, the force is transmitted to the front transverse plate assembly from the automobile head, then partial force is transmitted to the A column assembly and then to the automobile roof, the stress of the battery is reduced, and the battery is protected. 2. The integration level of the bottom plate assembly for supporting the battery assembly and the vehicle body is high, and the stability of the vehicle body is improved. 3. When the battery is assembled, the battery is assembled to the vehicle body from top to bottom. 4. The rigidity of the whole vehicle is good, and the collision performance is good. 5. The battery module is fully distributed in the cells, so that the space of the chassis is fully utilized, and the endurance is further increased. And the high integration of frame subassembly improves assembly efficiency. In addition, an optimization scheme is provided, and the battery is buffered during the collision.

Drawings

FIG. 1 is a schematic diagram of an integrated structure of a battery pack;

FIG. 2 is a schematic view of a bezel assembly;

FIG. 3 is a schematic view of a base plate assembly;

FIG. 4 is a schematic view of a battery assembly;

FIG. 5 is a partial sectional view of embodiment 2;

FIG. 6 is a cross-sectional view A-A of FIG. 5;

fig. 7 is a sectional view B-B of fig. 5.

In the figure: the device comprises a battery component 1, a bottom plate component 2, a frame component 3, an upper cover component 4, a threshold beam assembly 5, an A-pillar assembly 6, a front transverse plate assembly 7, a rear transverse plate assembly 8, a rear floor assembly 9, a bottom plate body 10, longitudinal beams 11, a transverse beam 12, a supporting frame 13, a reinforcing frame 14, a battery module 16, a copper bar 17, a distribution box 18, a fuse box 19, an insulating block 20, a front cover plate 21, a rear cover plate 22, a cover plate transverse beam 23, an outer covering frame 26, a longitudinal connecting rod 27, a transverse connecting rod 28, a long hole 29, a force application spring 30, a rotating shaft 31, a rotating wheel 32, a latch 33, a clamping groove 34, a friction wheel 35, a one-way bearing 36, a return spring 37, a water channel 38, a transverse water channel 39, a longitudinal water channel 40 and a water pipe 41.

Detailed Description

The invention is explained in further detail below with reference to the figures and the detailed description:

example 1:

referring to fig. 1 to 4, a battery pack integrated structure of a storage type electric vehicle includes a battery assembly 1, a base plate assembly 2 for supporting the battery assembly 1, a frame assembly 3 for supporting the base plate assembly 2, and an upper cover assembly 4 covering the battery assembly 1;

the frame component 3 comprises threshold beam assemblies 5 positioned at two opposite sides of the battery component 1, a front transverse plate assembly 7 fixedly connected between one ends of the threshold beam assemblies 5, a rear transverse plate assembly 8 and a rear floor assembly 9 fixedly connected between the other ends of the threshold beam assemblies 5, and A-pillar assemblies 6 fixedly connected at two opposite sides of the front transverse plate assembly 7;

the lower end of the A-pillar assembly 6 is fixedly connected to the threshold beam assembly 5.

The bottom plate component 2 comprises a bottom plate body 10, a supporting frame 13 fixedly connected to the edge of the bottom plate body 10, a cross beam 12 fixedly connected to the upper side of the bottom plate body 10, a longitudinal beam 11 fixedly connected to the upper side of the bottom plate body 10 and a reinforcing frame 14 fixedly connected to the lower side of the bottom plate body 10;

the cross members 12 and the longitudinal members 11 divide the area of the upper side of the floor body 10 into four cells.

The battery assembly 1 includes four battery modules 16 corresponding to the cells one to one, copper bars 17 for connecting the battery modules 16 in series, and water pipes 41 for cooling the battery modules 16.

The battery assembly 1 further includes an insulating block 20 at an end of the battery module 16, a distribution box 18 at an upper side of the battery module 16, and a fuse box 19.

The upper cover assembly 4 includes a front cover plate 21, a rear cover plate 22, and a cover cross member 23 to cover between the front cover plate 21 and the rear cover plate 22.

The lower side of the upper cover assembly 4 is provided with a distribution box holder attached to the distribution box 18 and a module pressing plate attached to the battery module 16.

In the embodiment, the force transmission paths are multiple, when an automobile is impacted, force is transmitted to the front transverse plate assembly from the automobile head, then partial force is transmitted to the A column assembly 6 and then to the automobile roof, the stress of the battery is reduced, and the battery is protected.

In this embodiment, the battery modules 16 are distributed over the cells, so as to fully utilize the chassis space and further increase the endurance.

And the frame component 3 is highly integrated, and the assembly efficiency is improved.

Example 2:

this embodiment is substantially the same as embodiment 1 except that the power distribution box holder and the module pressing plate are not provided on the lower side of the upper cover assembly 4.

Referring to fig. 5 to 7, the outsides of the battery modules 16 are wrapped with an outsourcing frame 26, the outsourcing frame 26 is slidably connected with the bottom plate body 10, the battery modules 16 corresponding to two cells close to the front cross plate assembly 7 are named as front battery modules, the other two battery modules 16 are named as rear battery modules, the cross beam 12 is penetrated with a longitudinal connecting rod 27, the front battery modules and the rear battery modules are connected through the longitudinal connecting rod 27, the longitudinal connecting rod 27 is slidably connected with the cross beam 12, the longitudinal beam 11 is penetrated with a transverse connecting rod 28, the front battery modules are connected through the transverse connecting rod 28, the rear battery modules are connected through the transverse connecting rod 28, the longitudinal beam 11 is provided with a long hole 29 for accommodating the transverse connecting rod 28, a force applying spring 30 for applying a force to the transverse connecting rod 28 towards the rear cross plate assembly 8 is arranged in the long hole 29, be equipped with pivot 31 in the crossbeam 12, it is connected with runner 32 to rotate in the pivot 31, one side rigid coupling of runner 32 has latch 33, be equipped with draw-in groove 34 on the longitudinal tie rod 27, latch 33 is located draw-in groove 34, it is connected with friction pulley 35 to rotate in the pivot 31, be equipped with the one-way bearing 36 that is used for restricting friction pulley 35 rotation direction between friction pulley 35 and the crossbeam 12, runner 32 one side is supported and is leaned on friction pulley 35, runner 32 opposite side is equipped with reset spring 37, reset spring 37 cover is on pivot 31, reset spring 37 one end is connected on crossbeam 12 inner wall, the reset spring 37 other end is connected on runner 32, thereby reset spring 37 applys the power towards friction pulley 35 one side to runner 32 makes runner 32 compress tightly on friction pulley 35.

The water channel 38 is arranged inside the wall of the outer wrapping frame 26, the transverse connecting rod 28 is internally provided with a transverse water channel 39, the longitudinal connecting rod 27 is internally provided with a longitudinal water channel 40, the water channel 38 corresponding to the rear battery module is communicated through the transverse water channel 39, the water channel 38 corresponding to the front battery module is communicated through the transverse water channel 39, the water channels 38 corresponding to the rear battery module and the front battery module are communicated through the longitudinal water channel 40, and the water pipe 41 is connected with the water channel 38.

In this embodiment, the battery module 16 is not covered with the cells, and at ordinary times, the front battery module abuts against the cross beam 12, referring to fig. 6, under the action of both the friction force between the one-way bearing 36, the friction wheel 35 and the rotating wheel 32, the battery module 16 cannot slide forward, after the vehicle head is impacted, under the inertia action of the battery module 16, the rotating wheel 32 rotates against the friction force, the latch rotates, the return spring twists, after the latch 33 and the slot 34 are disengaged, under the action of the return spring 37, the latch 33 abuts against the longitudinal link 27, the battery module 16 slides forward, the latch slides on the longitudinal link, the force applying spring 30 shortens, the battery module 16 is buffered, then under the action of the force applying spring 30, the battery module 16 slides backward, the slot is close to the latch, when the slot moves to the latch, the rotating wheel rotates, the latch enters the slot, the slot 34 is again matched with the latch 33, the front battery module then rests again on the cross beam 12. The battery module is at gliding in-process, and the friction power that the outsourcing frame was overcome and bottom plate body does work, and power consumption, though also can strike on the crossbeam at last, the impact force reduces greatly.