CN207781669U - Battery pack for vehicle and the vehicle with it - Google Patents

Abstract

The utility model provides a battery pack for a vehicle and a vehicle with the same. The battery pack for a vehicle includes: a battery pack shell and a battery module, and the battery pack shell includes an upper shell and a lower shell ; The battery module is set in the battery pack shell, and the battery module includes: a cell group, an end plate, an insulator and a wire guard, the end plate is fixed on the front end of the cell group, and the insulator is fixed on the cell On the rear end face of the battery pack, wire guards are respectively fixed on two opposite sides of the cell pack, and the wire guards are plastic plates. The battery pack for vehicles described in the utility model can realize light weight of the battery pack, save space and volume, and reduce production cost.

Description

Battery pack for vehicle and vehicle having same

technical field

The utility model relates to the technical field of vehicles, in particular to a battery pack for vehicles and a vehicle with the same.

Background technique

With the vigorous promotion of the new energy field by the country, electric vehicles have become the mainstream trend in the future, and battery packs are the most important power supply components of electric vehicles, and the structural design and production process of battery packs have high requirements.

At present, the module design of the existing battery packs in the market is generally composed of cells, front and rear end plates, and side plates. Due to the imperfect design, the battery pack has the disadvantages of heavy weight, large volume, and high production cost, and there is room for improvement.

Utility model content

In view of this, the utility model aims to provide a battery pack for vehicles, which can realize the lightweight of the battery pack, save space and volume, and reduce production costs.

In order to achieve the above object, the technical solution of the utility model is achieved in that:

A battery pack for vehicles, comprising: a battery pack case, the battery pack case includes an upper case and a lower case; a battery module, the battery module is arranged in the battery pack case, the The battery module includes: a battery pack, an end plate, an insulating member and a wire guard, the end plate is fixed on the front end of the battery pack, and the insulating member is fixed on the rear end of the battery pack Above, the wire guards are respectively fixed on the two opposite sides of the battery pack, and the wire guards are plastic plates.

According to an embodiment of the present utility model, the insulating member is an insulating plate or insulating glue.

According to an embodiment of the present invention, the wire protection board includes: a wire protection board body and a cantilever hook. The wire protection board body is an "L" shaped plastic plate and includes a long arm and a short arm. The cantilever hook The lower end is fixed to the short arm, and the upper end of the cantilever hook is spaced apart from the long arm to form a fixing groove, and the fixing groove constitutes the fixing part of the copper bar.

According to an embodiment of the present utility model, the rear end surface of the end plate is fixed to the front end surface of the cell pack through double-sided adhesive foam, and the front end surface of the end plate is fixed to the front end surface of the battery pack through threaded fasteners. The inner wall surface of the lower case is fixed, and the insulating member is an insulating plate, and the two sides of the insulating plate are respectively connected to the rear end surface of the battery pack and the rear side of the lower case through double-sided adhesive foam. The inner wall surface of the wall is fixed.

Further, the insulating plate is a solid thin plate, the end plate is a hollow thick plate, and the BMS, fuse and relay of the battery pack are located on the front side of the end plate.

Further, there are two wire guards, and the two wire guards are respectively fixed to the left side and the right side of the cell pack through double-sided adhesive foam.

According to an embodiment of the present invention, the battery pack includes a plurality of battery cells arranged side by side in parallel, and two adjacent battery cells are connected by double-sided adhesive foam or double-sided adhesive resin.

According to an embodiment of the present invention, thermal conductive glue is filled between the cell pack and the bottom wall of the lower case.

According to an embodiment of the present invention, an adhesive is filled between the cell pack and the bottom wall of the lower casing.

Compared with the prior art, the battery pack for vehicles described in the utility model has the following advantages:

In the battery pack for vehicles described in the utility model, the rear side wall of the battery pack lower case is used to replace the original module end plate, and an insulating plate is used to insulate the middle of the battery cell and the rear side wall of the lower case, so that Under the condition of satisfying the protection function of the battery module, the module end plate and its supporting bolts can be saved, the installation is convenient, the installation process can be simplified, and at the same time, it plays a positive role in reducing the weight of the battery pack and reducing the production cost.

Another purpose of the present utility model is to provide a vehicle, which has the same advantages as the above-mentioned battery pack for vehicles compared with the prior art, which will not be repeated here.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model. In the attached picture:

Figure 1 is an exploded view of the battery pack described in the embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the end plate and the insulating plate in FIG. 1 .

Explanation of reference signs:

100-battery pack, 11-lower housing, 111-fixing part of lower housing, 1111-fixing hole of lower housing, 12-upper housing, 121-flange of upper housing, 1211-fixing hole of upper housing, 2 -Battery core group, 21-battery core, 3-wire guard, 31-wire guard body, 311-long arm, 312-short arm, 32-cantilever hook, 321-upper end, 322-lower end, 4-end plate , 41-through hole, 5-insulation board, 51-double-sided adhesive foam, 6-BMS.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

In addition, the up, down, front, back, left, and right mentioned in the embodiments of the present utility model refer to up, down, front, back, and left and right shown in FIG. 1 .

The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

As shown in FIG. 1 , a battery pack 100 for a vehicle according to an embodiment of the present invention may include: a battery pack case and a battery module.

The battery pack casing may include an upper casing 12 and a lower casing 11, the upper casing 12 is located above the lower casing 11, the upper casing 12 may have an upper casing flange 121, and the upper casing flange 121 is provided with The upper housing fixing hole 1211, the lower housing 11 is provided with the lower housing fixing part 111, the lower housing fixing part 111 is multiple, and the plurality of lower housing fixing parts 111 are distributed at intervals in the circumferential direction of the lower housing 11, and The lower housing fixing portion 111 can be provided with a lower housing fixing hole 1111, so that when the upper housing 12 is covered on the lower housing 11, the threaded fasteners can be fixed through the upper housing sequentially from top to bottom. The hole 1211 and the lower housing fixing hole 1111 are used to realize the installation and fixing between the upper housing 12 and the lower housing 11 .

The battery module is arranged in the battery pack casing, and the battery module may include: a battery cell group 2, an end plate 4, an insulator and a wire guard plate 3, wherein the battery cell group 2 may be formed by arranging a plurality of battery cells 21 side by side , the end plate 4 is fixed on the front end face of the cell pack 2, the insulator is fixed on the rear end face of the cell pack 2, the wire protection plates 3 are respectively fixed on two opposite sides of the cell pack 2, and the wire guards Plate 3 is a plastic plate.

According to the battery pack 100 for vehicles according to the embodiment of the present invention, the rear side wall of the battery pack lower case 11 is used to replace the original module end plate 4, and is used between the battery cell 21 and the rear side wall of the lower case 11. The insulating plate 5 is insulated, so that under the condition of satisfying the protection function of the battery module, the module end plate 4 and its supporting bolts can be saved, the installation is convenient, the installation process can be simplified, and at the same time, the weight of the battery pack 100 is reduced and the production capacity is reduced. Cost plays a positive role.

Optionally, the insulator can be an insulating plate 5 or insulating glue, so as to realize electrical insulation between the battery pack casing and the battery module, and ensure the working reliability of the battery pack 100 , while the insulator is light in weight.

As shown in FIG. 1 , there can be two wire guards 3 , and the two wire guards 3 can be respectively fixed to the left side and the right side of the cell pack 2 by means of double-sided adhesive foam. Further, the wire protection plate 3 is "L" shaped and includes a long arm 311 and a short arm 312. The wire protection board 3 may be provided with a cantilever hook 32, and there are a plurality of cantilever hooks 32, and the plurality of cantilever hooks 32 are arranged along the wire protection board. The length direction of the main body 31 is distributed at intervals, and the lower end 322 of each cantilever hook 32 is fixed to the short arm 312, and the upper end 321 and the long arm 311 are spaced apart to form a fixing groove, which constitutes the above-mentioned copper bar fixing part, thereby facilitating installation Fixing the copper bars helps save space in the battery pack 100 and saves fasteners for fixing the copper bars, thereby reducing the number of parts in the battery pack 100 and reducing the weight of the battery pack 100 .

At the same time, the wire guards 3 of plastic parts are attached to both sides of the battery pack 2 to protect the battery pack 2, which can effectively reduce the quality of the battery module, and at the same time can play an important role in electrical insulation and protection of wiring harnesses, bus bars, etc. Parts perform the function of fixed limit.

Optionally, the rear end surface of the end plate 4 may be fixed to the front end surface of the cell pack 2 by means of double-sided adhesive foam, and the front end surface of the end plate 4 is fixed to the inner wall surface of the lower housing 11 by threaded fasteners, specifically , the end plate 4 and the inner wall surface of the lower shell 11 can be clamped by the production line tooling fixture, and the end plate 4 is tightened and fixed on the inner wall surface of the lower shell 11 with threaded fasteners such as bolts, so as to realize the end plate 4 Maintain the clamping force of the battery cell 21 to realize the clamping and fixing of the battery cell group 2 .

At the same time, the end plate 4 is a hollow thick plate. Specifically, as shown in FIG. Through the upper end surface and the lower end surface of the end plate 4, there may be multiple through holes 41, and the plurality of through holes 41 are distributed at intervals along the length direction of the end plate 4. The BMS6, fuse and relay of the battery pack 100 are located The front side, in this way, the front side of the battery pack 2 is protected by the end plate 4 composed of a hollow thick plate, which can play a role of heat insulation and effectively prevent the heat of the battery pack 2 from being transferred to the front side of the battery pack 2. BMS6, fuses and relays, thus affecting the normal operation of BMS6, fuses and relays.

The insulator is an insulating plate 5, and the two sides of the insulating plate 5 are fixed to the rear end surface of the cell pack 2 and the inner wall surface of the rear side wall of the lower casing 11 by double-sided adhesive foam respectively, and the insulating plate 5 can be a solid thin plate , so that the insulating part can effectively transfer the heat of the cell pack 2 to the rear side wall of the lower casing 11, and then dissipate the heat through the rear side wall. The quality of the battery pack 100 can be reduced, and the space volume of the battery pack 100 can be saved.

The battery pack 2 includes a plurality of battery cells 21 arranged side by side in parallel, and two adjacent battery cells 21 can be connected by double-sided adhesive foam or double-sided adhesive resin, so the fixing method is simple and the connection is firm. Further, heat-conducting glue and adhesive are filled between the battery pack 2 and the bottom wall of the lower casing 11, so that by setting the heat-conducting glue, the heat conduction between the battery 21 and the casing can be realized, which facilitates the heat dissipation of the battery 21, and at the same time An adhesive is added between the bottom of the cell pack 2 and the lower case 11 to strengthen the fixation between the cell 21 and the lower case 11 .

To sum up, the battery pack 100 for a vehicle according to the embodiment of the present invention can realize the weight reduction of the battery pack 100 , save space and volume, and reduce production cost.

The utility model also provides a vehicle, which includes the above-mentioned battery pack 100 for vehicles, thus having the advantages of a high level of light weight.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model shall be included in the utility model. within the scope of the new protection.

Claims (10)

1. a kind of battery pack (100) for vehicle, which is characterized in that including：

Battery pack housing, the battery pack housing include upper shell (12) and lower housing (11)；

Battery modules, the battery modules are arranged in the battery pack housing, and the battery modules include：Battery core group (2), end Plate (4), insulating part and shield line plate (3), the end plate (4) are fixed on the front end face of the battery core group (2), and the insulating part is solid Be scheduled on the rear end face of the battery core group (2), the shield line plate (3) be separately fixed at two of the battery core group (2) it is opposite On side, the shield line plate (3) is plastic plate.

2. the battery pack (100) according to claim 1 for vehicle, which is characterized in that the insulating part is insulation board (5) or insulating cement.

3. the battery pack (100) according to claim 1 for vehicle, which is characterized in that the shield line plate (3) includes： Line plate ontology (31) and cantilever hooks (32) are protected, the shield line plate ontology (31) is that " L " shapes flitch and include long-armed (311) and short Arm (312), the lower end (322) of the cantilever hooks (32) and the galianconism (312) are fixed, the upper end of the cantilever hooks (32) (321) it is spaced apart between long-armed (311) to form fixing groove, the fixing groove constitutes copper bar fixed part.

4. the battery pack (100) according to claim 1 for vehicle, which is characterized in that the rear end face of the end plate (4) It is fixed by double faced adhesive tape foam (51) and the front end face of the battery core group (2), the front end face of the end plate (4) passes through screw thread Fastener and the internal face of the lower housing (11) are fixed, and the insulating part is insulation board (5), the both sides of the insulation board (5) Pass through the interior of double faced adhesive tape foam (51) and the rear end face of the battery core group (2) and the rear wall of the lower housing (11) respectively Wall surface is fixed.

5. the battery pack (100) according to claim 4 for vehicle, which is characterized in that the insulation board (5) is solid Thin plate, the end plate (4) are Thick Hollow, and BMS, fuse and the relay of the battery pack (100) are located at the end plate (4) Front side.

6. the battery pack (100) according to claim 3 for vehicle, which is characterized in that the shield line plate (3) is two A, two shield line plates (3) are solid with the left side of the battery core group (2) and right side respectively by double faced adhesive tape foam (51) It is fixed.

7. the battery pack (100) according to claim 1 for vehicle, which is characterized in that the battery core group (2) includes more A parallel battery core (21) arranged side by side passes through double faced adhesive tape foam (51) or double faced adhesive tape between adjacent two battery cores (21) Resin connects.

8. the battery pack (100) according to claim 1 for vehicle, which is characterized in that the battery core group (2) with it is described Heat-conducting glue is filled between the bottom wall of lower housing (11).

9. the battery pack (100) according to claim 1 for vehicle, which is characterized in that the battery core group (2) with it is described Bonding agent is filled between the bottom wall of lower housing (11).

10. a kind of vehicle, which is characterized in that include the battery pack for vehicle according to any one of claim 1-9 (100)。