CN213816366U

CN213816366U - Battery module

Info

Publication number: CN213816366U
Application number: CN202022407078.9U
Authority: CN
Inventors: 刘小民; 郭鹏亮; 汪超
Original assignee: Shenzhen Clou Electronics Co Ltd
Current assignee: Shenzhen Clou Electronics Co Ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-07-27
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses a battery module, it includes: the battery is provided with a plurality of batteries, and the material of the lugs of the batteries is aluminum; the battery is embedded in the mounting frame; the composite connection board has two, and every composite connection board includes aluminum product part and copper product part, and the aluminum product part and the total positive tab of battery module of a composite connection board are connected, and the aluminum product part and the total negative tab of battery module of another composite connection board are connected, and the copper product part of every composite connection board is fixed in the mounting bracket. This battery module includes copper aluminium composite connection board, has solved aluminum product and battery aluminium utmost point ear welding simultaneously to and the problem that copper product and external copper bar are connected, guaranteed the reliability of system, temperature when reducing the battery module and charging and discharging improves system efficiency.

Description

Battery module

Technical Field

The utility model relates to a battery technology especially relates to a battery module.

Background

In the field of new energy, hard-package cells are increasingly used. Generally, the total positive electrode and the total negative electrode of the hard-package battery cell are both aluminum tabs, and under the existing technical conditions, the aluminum bars and the aluminum tabs of the battery cell are generally used for laser welding of the same type of materials. Because of the poor conductive efficiency of aluminium, battery module generally can adopt the copper product as the cable, or directly uses the copper bar. However, if the copper product that will be used for the cable with be used for passing through the screw with aluminium utmost point ear welded aluminum product and be connected, when carrying out heavy current charge-discharge, can produce the arc reaction, lead to contact surface resistance increase, it is serious to generate heat, temperature rising scheduling problem for there is the potential safety hazard in battery module system, and reduces this system efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a battery module, this battery module has safe and reliable's characteristics.

According to the utility model discloses a battery module of first aspect embodiment, include: the battery is provided with a plurality of batteries, and the material of the lugs of the batteries is aluminum; the battery is embedded in the mounting frame; the composite connection board has two, every composite connection board includes aluminum product part and copper product part, one composite connection board the aluminum product part with battery module's total positive ear is connected, another composite connection board the aluminum product part with battery module's total negative pole ear is connected, every composite connection board the copper product part be fixed in the mounting bracket.

According to the utility model discloses battery module has following beneficial effect at least: it solves aluminum product and battery aluminium utmost point ear welding simultaneously to and the problem that the copper product is connected with external copper bar, the temperature when reducing the battery module and charging and discharging guarantees the reliability of this battery module, has improved system's efficiency.

According to some embodiments of the utility model, the composite connection board is the structure of buckling, two the copper product part passes through the screw fixation in the front of mounting bracket, two the aluminum product part respectively with total anodal ear and total negative pole ear welding.

According to some embodiments of the utility model, it is adjacent utmost point ear passes through the aluminium connection piece and connects.

According to some embodiments of the invention, the mounting frame is a frame.

According to some embodiments of the utility model, adjacent two be formed with the gap between the battery holds the chamber, the mounting bracket still seted up with the ventilation groove of gap intercommunication, the wind channel has still been injectd to the mounting bracket, every the battery hold the chamber with the wind channel intercommunication, the mounting bracket still has the opening, the opening with the wind channel intercommunication.

According to some embodiments of the utility model, the battery holds the chamber including two, the wind channel is located two the battery holds in the middle of the chamber, the gap with the wind channel is perpendicular.

According to some embodiments of the utility model, still include the apron, the apron cover in on the mounting bracket, and with the mounting bracket passes through screwed connection.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic view of an embodiment of the present invention with the cover plate removed;

fig. 3 is a schematic side view of an embodiment of the present invention;

fig. 4 is a schematic diagram of a battery connection relationship according to an embodiment of the present invention;

fig. 5 is a schematic view of a composite connecting plate according to an embodiment of the present invention.

Reference numerals:

mounting bracket 100, opening 110, ventilation groove 120, composite connecting plate 140, aluminum material part 141, copper material part 142, cover plate 200, battery 300 and aluminum connecting sheet 400.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as excluding the number, and the terms greater than, less than, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in combination with the specific content of the technical solution.

Referring to fig. 2, 4 and 5, a battery module according to an embodiment of the first aspect of the present invention includes: a mounting block 100, the mounting block 100 including a plurality of battery receiving cavities; a plurality of batteries 300, wherein the batteries 300 are arranged in the battery accommodating cavities, and the material of the battery tabs is aluminum; and two composite connection plates 140, each of which 140 includes an aluminum material portion 141 and a copper material portion 142, the aluminum material portion 141 of one of the composite connection plates 140 being connected to the total positive tab of the battery module, the aluminum material portion 141 of the other composite connection plate 140 being connected to the total negative tab of the battery module, and the copper material portion 142 of each of the composite connection plates 140 being fixed to the mounting block 100.

This battery module includes copper aluminium composite connection board 140, has solved the welding of aluminum product and battery 300 aluminium utmost point ear simultaneously to and the problem that the copper product is connected with external copper bar or copper cable, guarantee the reliability of system, temperature when reducing the charge-discharge improves system efficiency.

Referring to fig. 2 and 5, in some embodiments of the present invention, the composite connecting plate 140 is a bent structure, two copper material portions 142 are fixed to the front surface of the mounting frame 100 by screws, and two aluminum material portions 141 are welded to the total positive electrode tab and the total negative electrode tab, respectively. It should be understood that the connection manner of the above components may be clamping, welding, screwing, etc., and is not limited thereto. Similarly, the composite connecting plate 140 does not need to be a bent structure when the copper material portion 142 is in the same plane as the tabs of the battery 300.

Referring to fig. 2, 3 and 4, a gap is formed between two adjacent battery accommodating cavities, the mounting bracket 100 is further provided with a ventilation slot 120 communicated with the gap, the mounting bracket 100 is further limited with an air duct, each battery accommodating cavity is communicated with the air duct, the mounting bracket 100 is further provided with an opening 110, and the opening 110 is communicated with the air duct. Through this kind of setting, inside cold wind can get into battery module by opening 110 and ventilation groove, the heat that produces battery module during operation discharges to realize battery module's heat dissipation cooling.

Referring to fig. 2 and 4, further, the battery accommodating chambers include two rows, the air duct is located between the two rows of battery accommodating chambers, and the gap is perpendicular to the air duct.

Referring to fig. 2 and 4, in some embodiments of the present invention, adjacent tabs are connected by an aluminum connecting sheet 400, thereby connecting the cells 300.

Referring to fig. 2, in some embodiments of the invention, the mounting frame 100 is a frame. It is understood that the mounting bracket 100 may also be cylindrical, spherical, etc., without limitation.

Referring to fig. 1, in some embodiments of the present invention, the present invention further includes a cover plate 200, and the cover plate 200 covers the mounting frame 100 and is connected to the mounting frame 100 by screws. Cover each battery 300 of inlaying in mounting bracket 100 through setting up apron 200, can play dustproof effect, extension equipment life.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

The following describes a battery module according to an embodiment of the present invention in detail with reference to fig. 1 to 5 as a specific embodiment. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.

The battery module includes: a mounting block 100, the mounting block 100 including a plurality of battery receiving cavities; a plurality of batteries 300, wherein the batteries 300 are arranged in the battery accommodating cavities, and the material of the battery tabs is aluminum; and two composite connection plates 140, each of which 140 includes an aluminum material portion 141 and a copper material portion 142, the aluminum material portion 141 of one of the composite connection plates 140 being connected to the total positive tab of the battery module, the aluminum material portion 141 of the other composite connection plate 140 being connected to the total negative tab of the battery module, and the copper material portion 142 of each of the composite connection plates 140 being fixed to the mounting block 100. The composite connection plate 140 is of a bent structure, two copper material portions 142 are fixed on the front surface of the mounting frame 100 through screws, and two aluminum material portions 141 are welded to a total positive tab and a total negative tab respectively. Adjacent tabs are connected by an aluminum connecting plate 400. The mounting block 100 is a frame. A gap is formed between every two adjacent battery holding cavities, the mounting frame 100 is further provided with a ventilation groove 120 communicated with the gap, the mounting frame 100 is further limited with an air duct, each battery holding cavity is communicated with the air duct, the mounting frame 100 is further provided with an opening 110, and the opening 110 is communicated with the air duct. The battery holds the chamber including two, and the wind channel is located two battery and holds the chamber in the middle of, and the gap is perpendicular with the wind channel. The battery module further includes a battery module cover plate 200, and the cover plate 200 covers the mounting frame 100 and is connected to the mounting frame 100 by screws.

According to the utility model discloses battery module, through so setting up, can reach some effects as follows at least: this battery module includes copper aluminium composite connection board 140, solves the welding of aluminum product and battery 300 aluminium utmost point ear simultaneously to and the problem that the copper product is connected with external copper bar, the reliability of assurance system reduces the temperature when charging and discharging, improves system efficiency.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. Battery module, its characterized in that includes:

a mounting bracket including a plurality of battery receiving cavities;

a plurality of batteries are arranged in the battery accommodating cavity, and the battery tabs are made of aluminum;

the composite connection board has two, every composite connection board includes aluminum product part and copper product part, one composite connection board the aluminum product part with battery module's total positive ear is connected, another composite connection board the aluminum product part with battery module's total negative pole ear is connected, every composite connection board the copper product part be fixed in the mounting bracket.

2. The battery module according to claim 1, wherein: the composite connection board is of a bent structure, the copper material parts are fixed on the front face of the mounting frame through screws, and the aluminum material parts are welded with the total positive electrode lug and the total negative electrode lug respectively.

3. The battery module according to claim 1, wherein: and the adjacent lugs are connected through an aluminum connecting sheet.

4. The battery module according to claim 1, wherein: the mounting frame is a frame.

5. The battery module according to claim 4, wherein: two adjacent the battery holds and is formed with the gap between the chamber, the mounting bracket still seted up with the ventilation groove of gap intercommunication, the wind channel has still been injectd to the mounting bracket, every the battery hold the chamber with the wind channel intercommunication, the mounting bracket still has the opening, the opening with the wind channel intercommunication.

6. The battery module according to claim 5, wherein: the battery holds the chamber and includes two, the wind channel is located two the battery holds the chamber in the middle of, the gap with the wind channel is perpendicular.

7. The battery module according to claim 1, wherein: still include the apron, the apron cover in on the mounting bracket, and with the mounting bracket passes through screwed connection.