CN219371105U

CN219371105U - Power battery system structure with wireless communication function

Info

Publication number: CN219371105U
Application number: CN202222094659.0U
Authority: CN
Inventors: 李良彬; 曹锡仪; 高贵彦; 周晴; 王超强; 姜志强; 王欣荣; 陈金龙; 胡艳兰; 李强; 彭爱平; 廖龙龙; 何兵
Original assignee: JIANGXI GANFENG LITHIUM CO Ltd; Jiangxi Ganfeng Lienergy Technology Co Ltd
Current assignee: Jiangxi Ganfeng Lithium Industry Group Co ltd; Jiangxi Ganfeng Lienergy Technology Co Ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2023-07-18
Anticipated expiration: 2032-08-10

Abstract

The utility model discloses a power battery system structure with a wireless communication function, which comprises a battery module, an upper cover and a box body, wherein the battery module, the upper cover and the box body form a battery system shell; the battery pack is arranged at the bottom end inside the battery module; the BMS battery management system is arranged on the surface of a pressing plate at the upper part of the battery pack; the 4G module is arranged on the inner side of the upper cover and is in wireless communication with the outside through a window opening structure of the upper cover, and the upper cover is formed by using sheet metal stamping, bending and welding processes; the middle part of the upper cover is provided with a windowing structure matched with the signal emission of the 4G module, and the box body is formed by using sheet metal stamping, bending and welding processes. The problem that the service life of the battery module is influenced due to poor heat dissipation of the battery module structure in the natural cooling use process is solved; the problem that the battery module is affected by the restraint of an external communication wire harness is solved, and BMS system program upgrading and background monitoring and positioning functions of the battery module are carried out on the battery module through a wireless communication function.

Description

Power battery system structure with wireless communication function

Technical Field

The utility model relates to the technical field of battery packs, in particular to a power battery system structure with a wireless communication function.

Background

At present, most of the bottom mounting modes of the battery system are sealed by the bottom space, so that the heat dissipation effect is affected. Liquid cooling and natural cooling are common; however, in the liquid cooling scheme, the natural cooling scheme is more selected to design due to the high cost of the liquid cooling system and the external matched compression pump; the problem of poor heat dissipation effect in natural cooling is a problem which needs to be solved.

For the communication plates of the battery system, more aviation sockets of the battery system are accessed for communication through external communication wiring harnesses; the mode is constrained by an external wire harness, so that a battery system is inconvenient to move, data is monitored, and a program is updated; in particular, there are constraints on the program upgrade of the BMS system and the background monitoring and positioning of the battery module.

Therefore, we propose a power battery system structure with wireless communication function to solve the above problems.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a pole piece rebound measuring device.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a power battery system architecture with wireless communication function, comprising: comprises an upper cover, a box body, a battery pack, a BMS battery management system and a 4G communication module. The upper cover and the box body form a battery system shell; the battery pack is arranged at the bottom of the battery box body; a BMS battery management system mounted on a surface of a pressing plate at an upper portion of the battery pack; and the 4G module is arranged at the inner side of the upper cover and performs stable communication and positioning functions with the outside through the window opening structure of the upper cover. The upper cover and the box body are formed by stamping and welding metal plates, the forming process is simple, and the manufacturing cost is low. The BMS battery management system provides intelligent management for the whole life cycle of the battery module, protects the battery module to run in a healthy state, and realizes remote communication functions such as background monitoring, wireless upgrading of system programs, positioning and the like of the battery module by matching with the wireless communication function of the 4G module; the function of managing a plurality of battery modules in batches can be realized.

Further preferably, the middle part of the upper cover is provided with a windowing structure matched with the signal emission of the 4G module.

Further preferably, the middle part of the box body structure is higher than the bottom plane to form a box body bottom neutral gear area; the box body also comprises carrying pull rings at two sides and a charging and discharging interface of the battery module. The bottom of the box body is provided with an extended box body fixing point.

Further preferably, the battery pack is mounted at the bottom of the case and partitioned by a buffer block; and fixing the battery pack at the bottom of the box body by using a pressing plate.

Further preferably, the BMS battery management system is mounted above the pressing plate.

Further preferably, the 4G communication module is mounted at a corresponding windowing position in the middle of the upper cover. And is installed above the BMS battery management system.

Compared with the prior art, the utility model has the beneficial effects that:

the power battery system structure with the wireless communication function solves the problems that the heat dissipation of a battery module structure is poor in the natural cooling use process, and the service life of the battery module is influenced; the problem that the battery module is affected by the restraint of an external communication wire harness is solved, and BMS system program upgrading and background monitoring and positioning functions of the battery module are carried out on the battery module through a wireless communication function.

Drawings

Fig. 1 is an exploded view of a lithium battery pack according to the present utility model;

fig. 2 is a schematic perspective view of a lithium battery pack according to the present utility model.

In the figure: 1. a battery module; 2. an upper cover; 201. windowing; 3. a case; 31. a charge-discharge output port; 32. a pull ring; 33. a box fixing point; 4. a battery pack; 41. a first battery pack; 42. a second battery pack; 43. a third battery pack; 401. a first buffer block; 402. a second buffer block; 5. BMS battery management system; 6. a 4G communication module; 7. a pressing plate; 71. a first platen; 72. a second pressing plate; 73. and a third pressing plate.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

As shown in fig. 1-2, a battery module 1 includes an upper cover 2, a case 3, a battery pack 4, a BMS battery management system 5, and a 4G communication module 6. The upper cover 2 and the box body 3 form a battery system shell; the battery pack 4, the battery pack 4 is divided into the first battery pack 41, the second battery pack 42 and the third battery pack 43, and the battery pack 4 is partitioned by the first buffer block 401 and the second buffer block 402, so that a heat dissipation space between the battery packs 4 is maintained.

More preferably, the bottom of the battery box body 3, the middle part structure of the box body 3 is higher than the bottom plane, so as to form a neutral gear area at the bottom of the box body 3, provide an air convection space for heat dissipation of the box body 3, improve the heat dissipation capacity of the whole battery module 1, and prolong the service life of the battery module 1; the box body 3 is a sheet metal stamping, bending and welding forming process, and has the advantages of simple structure, low manufacturing cost and the like, and is beneficial to acquisition.

More preferably, the BMS battery management system 5 is mounted on the surface of the second pressing plate 72 at the upper portion of the second battery pack 32; the battery pack 4 is restricted to a fixed range so that the battery pack 4 is kept in a fixed position.

More preferably, the 4G module 6 is installed inside the upper cover 2, and performs a stable communication and positioning function with the outside through the structure of the window 201 of the upper cover 2.

More preferably, the BMS battery management 5 system provides intelligent management for the whole life cycle of the battery module 1, protects the battery pack 4 to run in a healthy state, and cooperates with the wireless communication function of the 4G module 6 to realize remote communication functions such as background monitoring, system program wireless upgrading, positioning and the like of the battery module 1; the function of managing a plurality of battery modules 1 in batches can be achieved.

More preferably, the middle part of the upper cover 2 is provided with a signal transmitting window 201 matched with the 4G module 6, so that the signal communication without shielding can be realized, and the stable output and input of wireless signals can be maintained. The upper cover 2 is formed by stamping, bending and welding a sheet metal, and has the advantages of simple structure, easy acquisition, low manufacturing cost and the like.

More preferably, the battery pack 4 is mounted at the bottom of the case and partitioned by a buffer block; and fixing the battery pack at the bottom of the box body by using a pressing plate.

More preferably, the BMS battery management system is installed above the pressing plate, so that short-distance signal interaction between the internal BMS battery management system and the 4G module 6 is realized, and the probability of signal delay is reduced.

More preferably, pull rings 32 are arranged on two sides of the box body 3, so that the battery module 1 can be conveniently moved when needed; is fixed in the corresponding mounting position by the box fixing point 33.

The following description is made in connection with specific examples: according to the utility model, the middle part of the structure of the box body 3 is higher than the bottom plane, so that a bottom neutral gear area of the box body 3 is formed, an air convection space is provided for heat dissipation of the box body 3, the heat dissipation capacity of the whole battery module 1 is improved, and the service life of the battery module 1 is prolonged. The battery pack 4 is fixed to the bottom of the case 3 by a pressing plate 7. Monitoring the health state of the battery pack 4 and collecting signals by using the BMS battery management system 5; transmitting a communication signal of the BMS battery management system 6 to the outside through the 4G module; the 4G module can also provide program upgrading of the BMS battery management system 5, data of the health state of the battery pack 4 collected by the BMS battery management system 5 can be displayed on the background management system, the 4G module can also send out a self-position function, and the latest position information can be fed back in real time according to a background instruction to provide a reliable positioning function.

Claims

1. A power battery system structure with wireless communication function, comprising: the battery module (1), the upper cover (2) and the box body (3) form a battery system shell; the battery pack (4) is arranged at the bottom end inside the battery module (1); the BMS battery management system (5) is arranged on the surface of a pressing plate (7) at the upper part of the battery pack (4); the 4G module is arranged on the inner side of the upper cover (2) and is in wireless communication with the outside through the window (201) opening structure of the upper cover (2).

2. The power battery system structure with the wireless communication function according to claim 1, wherein the upper cover (2) is formed by using sheet metal stamping, bending and welding processes; the middle part of the upper cover (2) is provided with a windowing (201) structure matched with the signal emission of the 4G module.

3. The power battery system structure with the wireless communication function according to claim 1, wherein the box body (3) is formed by using sheet metal stamping, bending and welding processes; the box body (3) further comprises a power line output interface, two metal pull rings (32) carried on two sides and a fixed block of the bottom battery system.

4. The power battery system structure with the wireless communication function according to claim 1, wherein the battery pack (4) is composed of a plurality of battery packs (4) and is installed at the bottom of the case (3).

5. The power battery system structure with wireless communication function according to claim 4, wherein the battery pack (4) is mounted further comprising a buffer block between the battery packs (4) and a pressing plate (7) above the battery packs (4).

6. The power battery system structure with the wireless communication function according to claim 1, wherein the BMS battery management system (5) is installed on the upper surface of the pressing plate (7).

7. The power battery system structure with wireless communication function according to claim 1, wherein the 4G module is installed at a corresponding position of a window (201) structure inside the upper cover (2).