CN216120546U

CN216120546U - Battery distribution box and battery package

Info

Publication number: CN216120546U
Application number: CN202122599650.0U
Authority: CN
Inventors: 亢策策; 张巧然; 高升
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-03-22
Anticipated expiration: 2031-10-27

Abstract

The utility model discloses a battery distribution box and a battery pack, wherein the battery distribution box comprises: the device comprises a first module, a second module and a fastening bolt assembly, wherein the first module and the second module are arranged in a vertically stacked manner; at least a portion of the fastening bolt assembly is supportingly connected between the first module and the second module and the fastening bolt assembly is adapted to securely connect the battery distribution box within a battery pack. The battery distribution box has the advantages that the overall structure is more compact, the overall volume is smaller, less space is occupied in the battery pack, the battery pack is more conveniently installed and arranged, the energy density of the battery pack can be improved, and the cruising performance of the battery pack is better.

Description

Battery distribution box and battery package

Technical Field

The utility model relates to the technical field of power batteries, in particular to a battery distribution box and a battery pack.

Background

Among the prior art, when two modules that decompose into the battery block terminal range upon range of setting from top to bottom, need connect fixedly through the supporting structure who sets up alone two modules, and the cost that support development needs is higher, lead to the manufacturing cost improvement of battery block terminal and battery package, and the setting of support needs to occupy great installation space, cause the whole volume of battery block terminal bigger, more arrangement space in the shared battery package, influence the energy density of battery package, make the duration performance of battery package receive the influence, there is the improvement space.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a battery distribution box, which has a smaller overall size and occupies less space in a battery pack, so as to improve the energy density of the battery pack and improve the endurance of the battery pack.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a battery distribution box, comprising: the first module and the second module are stacked up and down; a fastening bolt assembly, at least a portion of which is supportingly connected between the first module and the second module, and which is adapted to securely connect the battery distribution box within a battery pack.

Further, the fastening bolt assembly includes: the support connecting bolt comprises a support connecting bolt and a fastening bolt, one part of the support connecting bolt is suitable for being supported between the first module and the second module, the other part of the support connecting bolt is suitable for penetrating out of the second module, and the fastening bolt is suitable for penetrating through the first module to be in fastening connection with the support connecting bolt.

Further, the stay-attaching bolt includes: the supporting section supports between the first module and the second module, the penetrating section is connected to one end of the supporting section and penetrates out of the second module, and the cross-sectional area of the supporting section is larger than that of the penetrating section.

Further, the fastening bolt is fastened and connected with the other end of the support section.

Further, the other end of the support section is inwards sunken to form a threaded matching groove, and the fastening bolt is suitable for being matched and fastened with the threaded matching groove.

Further, the first module has a first housing, the second module has a second housing, a first through hole is opened on an end portion of the first housing, a second through hole is opened on an end portion of the second housing, the support section is supported between the end portion of the first housing and the end portion of the second housing, the penetrating section is adapted to penetrate through the second through hole to be fastened with a battery pack housing, and the fastening bolt is adapted to penetrate through the first through hole to be fastened with the support section.

Further, the first module comprises: the main negative relay and the current sensor are respectively arranged in the first shell.

Further, the second module comprises: the main positive relay, main fuse, pre-charge relay and pre-charge resistance, main positive relay main fuse pre-charge relay with pre-charge resistance sets up respectively in the second casing.

Further, the orthographic projection areas and the orthographic projection shapes of the first module and the second module are the same.

Compared with the prior art, the battery distribution box has the following advantages:

the battery distribution box has the advantages that the overall structure is more compact, the overall size is smaller, less arrangement space in the battery pack is occupied, the battery distribution box is more convenient to install and arrange in the battery pack, the energy density of the battery pack can be improved, and the cruising performance of the battery pack is better.

Another object of the present invention is to provide a battery pack, which includes the above battery distribution box, and has higher energy density and better endurance.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural view of a battery distribution box according to an embodiment of the present invention;

figure 2 is a schematic structural diagram of a battery distribution box according to an embodiment of the present invention;

figure 3 is a schematic structural diagram of a battery distribution box according to an embodiment of the present invention;

figure 4 is a schematic structural diagram of a battery distribution box according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a support coupling bolt according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a fastening bolt according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a second module according to an embodiment of the utility model;

figure 8 is a schematic diagram of a partial configuration of a battery distribution box according to an embodiment of the present invention;

fig. 9 is a partial structural schematic diagram of a battery distribution box according to an embodiment of the present invention.

Description of reference numerals:

100-battery distribution box, 1-first module, 11-first housing, 111-first through hole, 2-second module, 21-second housing, 211-second through hole, 3-fastening bolt assembly, 31-support connecting bolt, 311-support section, 312-piercing section, 313-thread fit groove, 32-fastening bolt.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

A battery distribution box 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 9.

The battery distribution box 100 according to an embodiment of the present invention may include: a first module 1, a second module 2 and a fastening bolt assembly 3.

As shown in fig. 1-4, the battery distribution box is used as a power distribution unit of the battery pack, and can ensure power transmission of the battery pack, the battery distribution box is a bridge for power supply and signal transmission between the inside of the battery pack and external high-voltage equipment, and the battery distribution box can receive instructions from a battery management system and realize the function of powering on and powering off the battery pack in time. In order to make the battery pack have higher energy density, the space occupied by the battery distribution box in the battery pack should be as small as possible, so that more battery modules can be arranged in the battery pack, thereby ensuring the energy density and the cruising performance of the battery pack.

Traditional battery power distribution box is a whole, and battery power distribution box can't arrange in a flexible way in the battery package, leads to the space that battery power distribution box occupy great, influences the energy density of battery package for the continuation of the journey performance of battery package receives the influence. In order to facilitate the arrangement of the battery distribution box, the battery distribution box is generally decomposed into two modules, and the two modules are electrically connected, so that the battery distribution box can be flexibly arranged in a battery pack, the two modules are generally required to be arranged in a vertically stacked manner due to the narrow space in the battery pack, and when the two modules decomposed into the battery distribution box are arranged in a vertically stacked manner, the two modules are required to be fixedly connected through a separately arranged support structure, the cost required by the development of the support is high, the manufacturing cost of the battery distribution box and the battery pack is increased, and the support is required to occupy a large installation space, so that the whole volume of the battery distribution box is larger, more arrangement spaces in the battery pack are occupied, the energy density of the battery pack is influenced, and the cruising performance of the battery pack is influenced.

To this end, embodiments of the present invention contemplate a battery distribution box that utilizes a fastening bolt assembly to connect and support two modules. From this, the battery distribution box need not to set up solitary support and fix and support the module on upper strata to reduce the manufacturing cost of battery distribution box and battery package, and the overall structure of battery distribution box is compacter, has reduced the required space of battery distribution box installation, thereby has improved the energy density of battery package, so that the continuation of the journey performance of battery package is better.

Wherein, battery power distribution box 100 includes two modules, is first module 1 and second module 2 respectively, and first module 1 and second module 2 range upon range of setting from top to bottom to make the required installation of battery power distribution box 100 arrange the space littleer, thereby make battery power distribution box 100 can utilize narrow and small space in the battery package to install, so that improve the energy density of battery package, make the continuation of the journey performance of battery package better.

That is, the first module 1 is disposed above the second module 2. Further, in order to ensure that the first module 1 can be stably installed above the second module 2, the embodiment of the present invention further provides the battery distribution box 100 with the fastening bolt assembly 3, wherein the fastening bolt assembly 3 not only can stably connect the first module 1 and the second module 2 in the battery pack, but also the fastening bolt assembly 3 has a supporting function, and the fastening bolt assembly 3 can stably support and connect the first module 1 above the second module 2 to ensure the stability of the installation of the first module 1.

Specifically, at least a part of the fastening bolt assembly 3 is supported and connected between the first module 1 and the second module 2, that is, at least a part of the fastening bolt assembly 3 can support and connect the first module 1, so that the first module 1 can be stably supported and connected above the second module 2, thereby ensuring the stability of the arrangement between the first module 1 and the second module 2, and further ensuring the stability of the overall arrangement of the battery distribution box 100. Also, the fastening bolt assembly 3 is adapted to fasten the battery distribution box 100 within the battery pack, so the battery distribution box 100 can be stably disposed within the battery pack by the fastening action of the fastening bolt assembly 3, thereby ensuring the stability of the entire arrangement of the battery pack.

That is, the fastening bolt assembly 3 can not only stably support and connect the first module 1 and the second module 2 together to ensure the overall stability of the battery distribution box 100, but also stably dispose the battery distribution box 100 in the battery pack to ensure the disposition stability of the battery distribution box 100, thereby making the structure of the fastening bolt assembly 3 have various functions to make the functionality thereof stronger and also making the overall structure of the battery pack more compact.

According to the battery distribution box 100 provided by the embodiment of the utility model, the overall structure of the battery distribution box 100 is more compact, the overall volume is smaller, the occupied arrangement space in the battery pack is less, and the battery distribution box is more convenient to install and arrange in the battery pack, so that the energy density of the battery pack can be improved, and the cruising performance of the battery pack is better.

In connection with the embodiments shown in fig. 1-4, the fastening bolt assembly 3 comprises: the support connection bolts 31 and the fastening bolts 32, wherein the support connection bolts 31 not only can connect the battery distribution box 100 in the battery pack, but the support connection bolts 31 can also stably support the first module 1 above the second module 2 to ensure the overall stability of the battery distribution box 100. Further, the fastening bolt 32 can connect the first module 1 to the support connection bolt 31, and further, indirectly connect the first module to the inside of the battery pack through the support connection bolt 31.

Specifically, a portion of the support coupling bolt 31 is adapted to be supported between the first module 1 and the second module 2 to stably support the first module 1 above the second module 2. And another portion of the support coupling bolt 31 is adapted to penetrate the second module 2 and couple the second module 2 within the battery pack. The fastening bolt 32 is adapted to penetrate the first module 1 to be fastened with the support connection bolt 31, so as to stably connect the first module 1 to the support connection bolt 31, thereby stably connecting the first module 1 and the second module 2 together, and to indirectly connect the first module 1 in the battery pack through the support connection bolt 31.

As shown in fig. 1 to 6, the support coupling bolt 31 includes: a support section 311 and a penetrating section 312, wherein the support section 311 is supported between the first module 1 and the second module 2 to stably support the first module 1 above the second module 2, thereby ensuring the stability of the arrangement of the first module 1. And the penetrating section 312 is connected to one end of the supporting section 311 and penetrates the second module 2 outwards to stably connect the second module 2 in the battery pack. The cross-sectional area of the support section 311 is greater than that of the penetrating section 312, so that the support section 311 can be stably supported between the first module 1 and the second module 2, and the support section 311 can have a larger area for bearing the gravity of the first module 1, so that the support stability of the support section 311 to the first module 1 is ensured, and the stability of the overall arrangement of the battery distribution box 100 is ensured.

Further, the fastening bolt 32 is fastened to the other end of the support section 311, and therefore, the fastening bolt 32 can connect the first module 1 to the support section 311 supporting the connecting bolt 31, so that the first module 1 can be stably connected to the second module 2, and the first module 1 can be indirectly connected to the inside of the battery pack through the support connecting bolt 31. And, one end of the supporting section 311 is in supporting connection with the second module 2, and the other end of the supporting section 311 is in supporting connection with the first module 1, so that the supporting section 311 can be stably supported and connected between the first module 1 and the second module 2, thereby ensuring the overall stability of the battery distribution box 100.

Still further, the other end of the support section 311 is recessed inward to form a screw-fitting groove 313, and the fastening bolt 32 is adapted to be fastened in cooperation with the screw-fitting groove 313 to attach the first module 1 to the other end of the support section 311. Specifically, the provision of the screw-fitting groove 313 facilitates the fitting fixation between the other end of the support section 311 and the fastening bolt 32 more, and the connection can be accomplished without providing another fastening member between the fastening bolt 32 and the support section 311, so that the overall structure of the battery distribution box 100 is more compact.

Referring to fig. 1 to 4, the first module 1 has a first housing 11, the first housing 11 can protect components in the first module 1 so as to improve the safety of the first module 1, and the first housing 11 can also support the components in the first module 1 so as to ensure the stability of the arrangement of the first module 1.

The second module 2 has a second housing 21, and the second housing 21 can protect components in the second module 2 so as to improve the security of the second module 2, and the second housing 21 can also support the components in the second module 2 so as to ensure the stability of the second module 2.

With reference to the embodiments shown in fig. 7 to 9, the first through hole 111 is opened on the end of the first housing 11 so as to facilitate the insertion of the fastening bolt 32, facilitate the connection of the first module 1 on the supporting connection bolt 31 through the fastening bolt 32, and the second through hole 211 is opened on the end of the second housing 21 so as to facilitate the insertion of the penetrating segment 312, and facilitate the connection of the second module 2 in the battery pack through the supporting connection bolt 31.

As shown in fig. 1 to 4, the support section 311 is supported between an end of the first casing 11 and an end of the second casing 21 so as to be stably supported between the first module 1 and the second module 2 without affecting the normal arrangement of the first module 1 and the second module 2, and so as to avoid the arrangement of the fastening bolt assembly 3 from affecting the arrangement of components in the first module 1 and the second module 2.

Referring to fig. 7 and 8, the piercing section 312 is adapted to pass through the second through hole 211 to fasten with the battery pack housing, thereby achieving the purpose of fastening the second module 2 to the battery pack housing. The fastening bolt 32 is adapted to pass through the first through hole 111 to be fastened with the support section 311, thereby achieving the purpose of fastening the first module 1 to the second module 2.

According to some embodiments of the utility model, the first module 1 comprises: the main negative relay and the current sensor are respectively arranged in the first shell 11, so that the first shell 11 can effectively protect the main negative relay and the current sensor. I.e. the first module 1 is configured as a relay master negative module. The second module 2 includes: the main positive relay, the main fuse, the pre-charging relay and the pre-charging resistor are respectively arranged in the second shell 21, so that the second shell 21 can effectively protect the main positive relay, the main fuse, the pre-charging relay and the pre-charging resistor. I.e. the second module 2 is configured as a relay master positive module. Thereby, the arrangement of the internal circuit of the battery distribution box 100 is more facilitated.

As shown in fig. 1 to 4, the orthographic projection areas and the orthographic projections of the first module 1 and the second module 2 are the same, that is, the orthographic projection area and the orthographic projection shape of the first module 1 are the same as the orthographic projection of the second module 2, that is, the sizes of the first module 1 and the second module 2 are the same, so that the first module 1 and the second module 2 are stacked up and down, and therefore, more arrangement space can be avoided, and the overall structure of the battery distribution box 100 is more compact.

A battery pack according to another aspect embodiment of the present invention includes the battery distribution box 100 described in the above embodiment. The battery pack has higher energy density and better cruising performance. Other configurations for the battery pack are well known to those skilled in the art and thus will not be described in detail herein.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery distribution box (100), comprising:

the device comprises a first module (1) and a second module (2), wherein the first module (1) and the second module (2) are arranged in a vertically stacked mode;

a fastening bolt assembly (3), at least a portion of the fastening bolt assembly (3) being in supporting connection between the first module (1) and the second module (2), and the fastening bolt assembly (3) being adapted to fasten the battery distribution box (100) within a battery pack.

2. The battery distribution box (100) of claim 1, wherein the fastening bolt assembly (3) comprises: a support connecting bolt (31) and a fastening bolt (32), wherein one part of the support connecting bolt (31) is suitable for being supported between the first module (1) and the second module (2), the other part of the support connecting bolt (31) is suitable for penetrating out of the second module (2), and the fastening bolt (32) is suitable for penetrating through the first module (1) to be fastened and connected with the support connecting bolt (31).

3. The battery distribution box (100) according to claim 2, wherein said supporting connection bolt (31) comprises: the supporting section (311) is supported between the first module (1) and the second module (2), the penetrating section (312) is connected to one end of the supporting section (311) and penetrates out of the second module (2), and the cross-sectional area of the supporting section (311) is larger than that of the penetrating section (312).

4. The battery distribution box (100) according to claim 3, characterized in that the fastening bolt (32) is fastened with the other end of the support section (311).

5. The battery distribution box (100) according to claim 4, wherein the other end of the support section (311) is recessed inwardly to form a screw-fitting groove (313), the fastening bolt (32) being adapted to be fittingly fastened with the screw-fitting groove (313).

6. The battery distribution box (100) according to claim 4, wherein the first module (1) has a first housing (11), the second module (2) has a second housing (21), a first through hole (111) is opened on an end of the first housing (11), a second through hole (211) is opened on an end of the second housing (21), the support section (311) is supported between an end of the first housing (11) and an end of the second housing (21), the penetration section (312) is adapted to penetrate the second through hole (211) to be fastened with a battery housing body, and the fastening bolt (32) is adapted to penetrate the first through hole (111) to be fastened with the support section (311).

7. The battery distribution box (100) according to claim 6, wherein said first module (1) comprises: the main negative relay and the current sensor are respectively arranged in the first shell (11).

8. The battery distribution box (100) according to claim 7, wherein the second module (2) comprises: the main relay, main fuse, pre-charge relay and pre-charge resistance, main relay, main fuse pre-charge relay with pre-charge resistance sets up respectively in second casing (21).

9. The battery distribution box (100) according to claim 1, characterized in that the orthographic projection of the first module (1) and the second module (2) are both identical in area and shape.

10. A battery pack, characterized by comprising a battery distribution box (100) according to any of claims 1-9.