CN114335673A - Light power battery module and assembling method thereof - Google Patents

Abstract

The invention discloses a light power battery module, which comprises: a plurality of unit cells; the battery support comprises a battery limiting table, a plurality of dry battery hole sites arranged on the battery limiting table, and three connecting columns which are fixed on the battery limiting table and are spaced from the battery hole sites, wherein unit batteries are installed in the battery hole sites, and the connecting columns are fixedly connected with the two battery supports through screws; the collecting plates are fixed with busbars respectively attached to battery lugs of the unit batteries, and the collecting plates are two and are respectively riveted with the outer sides of the two battery supports; and the battery management module is arranged on the side surface of the battery bracket and is connected with the collection plate wire harness. The invention provides a standardized assembly mode and process for the assembly process of the cylindrical battery module, simplifies the production process, is convenient for automatic operation of a manipulator, has reliable and firm product structure, and better solves the problems of product consistency and reliability.

Description

A light-weight power battery module and its assembly method

technical field

The invention belongs to the technical field of batteries, and in particular relates to a light-weight power battery module and an assembling method thereof.

Background technique

With the development of the new energy industry, the trend of lithium electrification of light-duty vehicles is becoming more and more obvious. It is particularly important to design a suitable battery module structure to provide users with safer and more reliable battery products.

Traditional light power module products usually use conductive bars to directly connect the battery to the battery management module due to factors such as cost. Although the structure design is relatively simple, it is difficult to ensure the consistency of the processing process, which is safe for subsequent product use. hidden danger.

Therefore, there is an urgent need for a product that can solve the problem of integrated assembly during the use of cylindrical batteries and form an efficient and reliable battery module.

SUMMARY OF THE INVENTION

In view of this, the technical problem to be solved by the present invention is to provide a light-weight power battery module and an assembling method thereof, which are used to avoid the trouble of simple structure, poor assembly consistency and potential safety hazards of the previous power battery module.

In order to solve the above technical problems, the present invention discloses a light power battery module, which includes:

several unit cells;

Two battery brackets, the battery bracket has a battery limit table, a number of battery holes arranged on the battery limit table, and three connecting posts fixed on the battery limit table and spaced from the battery holes, wherein the battery hole installation unit The battery, the connecting column is fixedly connected to the two battery brackets by the screw;

a collection board, the collection board is fixed with bus bars that are respectively fitted to the battery tabs of the unit cells, and two collection boards are provided, which are respectively riveted to the outer sides of the two battery brackets; and

Battery management module, the battery management module is installed on the side of the battery bracket and connected to the wiring harness of the acquisition board.

According to an embodiment of the present invention, the above-mentioned battery limiting platform is provided with a plurality of positioning columns facing the collecting plate, and the positioning columns pass through the positioning holes of the collecting plate.

According to an embodiment of the present invention, a side surface of the battery bracket is provided with a mounting hole for fixing the battery management module.

According to an embodiment of the present invention, both sides of the bus bar are provided with bus bar fixing claws, and the bus bar fixing claws are snapped into the bus bar fixing holes of the collecting plate and fixed by soldering.

A method for assembling a light-weight power battery module, comprising:

S01, providing a unit cell, the unit cell including a battery body and a battery tab extending from the battery body;

S02, a battery bracket is provided, and the battery bracket is provided with a battery installation hole and a battery limit table;

S03, the battery support is installed on the outer periphery of the battery body and closely fitted, and the battery tabs are fixed at the positions corresponding to the battery limiters;

S04, provide a bus bar and a collection board, pass the bus bar fixing claw through the bus bar fixing hole to make it closely fit, and then weld them together by soldering;

S05, fit the bus bar side of the collection board to the side of the battery tabs, the positioning holes of the collection board and the positioning posts on the battery support are matched with each other, and use an external tool to apply a certain welding pre-pressure to the collection board towards the battery direction ;

S06, welding the battery tabs on the bus bar under the action of welding pre-pressure, and welding the positioning posts on the battery support and the battery collection board together;

S07, the battery management module is fixed on the battery bracket, and the battery management module and the collection board are connected together through the collection wire harness.

Compared with the prior art, the present invention can obtain the following technical effects:

The invention provides a standardized assembly mode and process for the assembly process of the cylindrical battery module, simplifies the production process, facilitates the automatic operation of the manipulator, has a reliable and firm product structure, and better solves the problems of product consistency and reliability.

Of course, any product implementing the present invention does not necessarily need to achieve all the above-mentioned technical effects at the same time.

Description of drawings

The accompanying drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

FIG. 1 shows an exploded view of a light-duty power battery module provided by an embodiment of the present invention;

FIG. 2 shows a schematic diagram of a battery support provided by an embodiment of the present invention;

FIG. 3 shows a schematic diagram of a bus bar provided by an embodiment of the present invention;

FIG. 4 shows a schematic diagram of a collection board provided by an embodiment of the present invention.

reference number

Unit battery 11, battery bracket 12, screw 13, collection board 14, battery management module 15, battery body 110, battery tab 111, battery mounting hole 121, battery limiter 122, positioning post 123, mounting hole 124, connection Post 125 , bus bar 141 , bus bar fixing claw 142 , bus bar fixing hole 143 , positioning hole 144 .

Detailed ways

The embodiments of the present invention will be described in detail below with the accompanying drawings and examples, so as to fully understand and implement the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects.

Please refer to FIGS. 1 to 4 together. FIG. 1 shows an exploded view of a light-duty power battery module provided by an embodiment of the present invention; FIG. 2 shows a schematic diagram of a battery bracket provided by an embodiment of the present invention; FIG. 3 shows Figure 4 shows a schematic diagram of a collection board provided by an embodiment of the present invention.

As shown in the figure, a light power battery module includes:

a number of unit cells 11;

Two battery brackets 12, the battery bracket 12 has a battery limiter 122, a plurality of battery holes 121 arranged on the battery limiter 122, and three connecting posts 125 fixed on the battery limiter 122 and spaced from the battery holes 122 , wherein, the battery hole 121 is installed with the unit battery 11, and the connecting column 125 is fixedly connected to the two battery brackets 12 through the screw 13;

The collecting plate 14, the collecting plate 14 is fixed with the bus bars 141 which are respectively fitted to the battery tabs 111 of the unit cells 11, and two collecting plates 14 are provided, and are respectively riveted to the outer sides of the two battery brackets 12; and

The battery management module 15 is installed on the side of the battery bracket 12 and is connected to the collection board 14 by the wiring harness.

In an embodiment of the present invention, the unit cells 11 are selected from cylindrical batteries, which include a battery body 110 and battery tabs 111 for being placed in the battery holder 12, and the battery holder 12 is symmetrically arranged for being fixed on the unit cells Both ends of 11 include a battery limiter 122, a battery hole 121, and a connecting column 125, wherein the battery limiter 122 cooperates with the battery hole 121 to install the unit battery 11, and the connecting column 125 is used for transmission. A screw 13 is provided, and the two battery brackets 12 are fastened to complete the fixing.

The collecting plate 14 is riveted and fixed on the outside of the battery bracket 12, and is closely attached to the battery tab 111 of the unit battery 11 through the bus bar 141 to complete the conductive connection, while the battery management module 15 is installed and fixed on the side of the battery bracket 12 to form control management. To ensure the stability and reliability of the battery work.

The battery limiter 122 of the present invention is provided with a plurality of positioning posts 123 facing the collection plate 14, and the positioning posts 123 pass through the positioning holes 144 of the collection plate 14, thereby positioning the battery support 12 and the collection plate 14, facilitating riveting and ensuring that after riveting stability.

In addition, the side surface of the battery bracket 12 is provided with a mounting hole 124 for fixing the battery management module 15, which is used for fixing the battery management module 15 in the mounting hole 124, which is convenient for assembly.

The bus bar 141 has bus bar fixing claws 142 on both sides. The bus bar fixing claws 142 are snapped into the bus bar fixing holes 143 of the collecting plate 14 to form positioning, and are fixed by soldering, which is easy to assemble.

The invention also discloses a method for assembling the light-duty power battery module, comprising:

S01, providing a unit cell 11, the unit cell 11 including a battery body 110 and battery tabs 111 extending from the battery body 110;

S02, providing a battery support 12, the battery support 12 is provided with a battery mounting hole 121 and a battery limiting platform 122;

S03, install the battery support 12 on the outer periphery of the battery body 110 and closely fit, and fix the battery tabs 111 at the positions corresponding to the battery limiters 122;

S04, providing the bus bar 141 and the collecting board 14, passing the bus bar fixing claw 142 through the bus bar fixing hole 143 to make it closely fit, and then welding them together by soldering;

S05, fit the side of the bus bar 141 of the collection board 14 to the side of the battery tab 111, the positioning holes 144 of the collection board 14 and the positioning posts 123 on the battery support 12 are matched with each other, and use an external tool to align the collection board 14 to the Apply a certain welding pre-pressure in the direction of the battery;

S06, welding the battery tabs 111 on the bus bar 141 under the action of the welding pre-pressure, and welding the positioning posts 123 on the battery support 12 and the battery collecting plate 14 together;

S07, the battery management module 15 is fixed on the battery support 12, and the battery management module 15 and the collection board 14 are connected together through the collection wire harness.

Preferably, there are 15 unit cells 11 in the present invention, and the number of connected screws 13 can be 3 in order to ensure stability.

To sum up, the present invention provides a standardized assembly mode and process for the assembly process of the cylindrical battery module, simplifies the production process, facilitates the automatic operation of the manipulator, the product structure is reliable and firm, and better solves the problems of product consistency and reliability. question.

The foregoing description shows and describes several preferred embodiments of the present invention, but as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein, and should not be construed as an exclusion of other embodiments, but may be used in various and other combinations, modifications and environments, and can be modified within the scope of the inventive concepts described herein, from the above teachings or from skill or knowledge in the relevant art. However, modifications and changes made by those skilled in the art do not depart from the spirit and scope of the present invention, and should all fall within the protection scope of the appended claims of the present invention.

Claims (5)

1. A light power battery module, characterized in that, comprising: several unit cells; Two battery brackets, the battery brackets have a battery limit table, a plurality of battery holes arranged on the battery limit table, and three connecting posts fixed on the battery limit table and spaced from the battery holes , wherein the unit battery is installed in the battery hole, and the connecting column is fixedly connected to the two battery brackets through a screw; a collection board, wherein the collection board is fixed with bus bars that fit the battery tabs of the unit cells respectively, and two collection boards are provided, and are respectively riveted to the outer sides of the two battery brackets; and A battery management module, the battery management module is installed on the side of the battery bracket and connected to the wire harness of the collection board. 2 . The light-duty power battery module according to claim 1 , wherein the battery limiting platform is provided with a plurality of positioning columns facing the collection plate, and the positioning columns pass through the holes of the collection plate. 3 . Positioning holes. 3 . The light-duty power battery module according to claim 1 , wherein a side surface of the battery bracket is provided with a mounting hole for fixing the battery management module. 4 . 4 . The light-duty power battery module according to claim 1 , wherein there are bus bar fixing claws on both sides of the bus bar, and the bus bar fixing claws are snapped into the bus bar fixing holes of the collecting plate. 5 . , and fixed by soldering. 5. An assembly method for processing the light-duty power battery module according to claim 1, characterized in that, comprising: S01, providing a unit cell, the unit cell including a battery body and a battery tab extending from the battery body; S02, a battery bracket is provided, and the battery bracket is provided with a battery installation hole and a battery limit table; S03, the battery support is installed on the outer periphery of the battery body and closely fitted, and the battery tabs are fixed at the positions corresponding to the battery limiters; S04, provide a bus bar and a collection board, pass the bus bar fixing claw through the bus bar fixing hole to make it closely fit, and then weld them together by soldering; S05, fit the bus bar side of the collection board to the side of the battery tabs, the positioning holes of the collection board and the positioning posts on the battery support are matched with each other, and use an external tool to apply a certain welding pre-pressure to the collection board towards the battery direction ; S06, welding the battery tabs on the bus bar under the action of welding pre-pressure, and welding the positioning posts on the battery support and the battery collection board together; S07, the battery management module is fixed on the battery bracket, and the battery management module and the collection board are connected together through the collection wire harness.

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