CN206976439U - A kind of battery modules - Google Patents

Abstract

The utility model provides a battery module group, which comprises a plurality of battery modules, a pair of fixing seats, a plurality of fixing rods and a plurality of electrical connecting pieces; each battery module comprises a pair of cover plates, a pair of fixing frames, and a pair of A plurality of batteries between the fixing frames, an insulating plate located on the side of each fixing frame opposite to the battery, and a bus plate located between each fixing frame and a corresponding insulating plate; each fixing frame includes a base plate, a part from the base plate The side plate formed by the extension of the edge and a pair of fixed clips located at both ends of the side plate, each cover plate is buckled with two fixed clips on a pair of fixed frames; each fixed seat is provided with multiple fixed protrusions, Each fixing rod can pass through the fixing frames of multiple battery modules in turn or pass through the fixing frames of multiple battery modules and a plurality of fixing protrusions of a fixing rod in order to fix and connect multiple battery modules; The two ends are respectively electrically connected to the bus bars of two adjacent battery modules and accommodated in the fixing positions.

Description

A battery module

【Technical field】

The utility model relates to the technical field of power batteries, in particular to a battery module.

【Background technique】

As the core component of electric vehicles, the battery module has a direct relationship with the stability and reliability of the structure and affects the performance and life of the entire battery system. Therefore, the design of battery modules has become an important part of the development process of electric vehicles. The design of the battery module needs to consider its production efficiency, connection method and electrical connection lead-out direction, etc.

In the prior art, a single module of a battery module connected by screws cannot be an independent unit, and modular production and assembly cannot be realized; it can only be fixed along the length direction of the battery module, and cannot be fixed from the side; battery modules are generally For linear circuits, the soft busbars used as electrical connections are relatively long, which not only increases the weight but also poses safety hazards; there are usually several battery cells above the battery module to assemble the acquisition board, which reduces the space utilization rate; the battery module adopts The separators are insulated and then fastened with sheet metal end plates, which do not use light weight and the end plates are prone to short circuit risks; the number of PCB boards used is large, and lightweight design is not used; battery modules have multiple standard rectangles, which cannot be fully utilized The curved space of the car body.

In view of this, it is necessary to provide a battery module to overcome the above defects.

【Content of utility model】

The purpose of the utility model is to provide a battery module capable of realizing modularization and light weight.

In order to achieve the above object, the utility model provides a battery module including a plurality of battery modules, a pair of fixing seats, a plurality of fixing rods and a plurality of electrical connecting pieces; each battery module includes a pair of cover plates, a pair of spaced opposite and a symmetrically arranged fixing frame, a plurality of batteries located between a pair of fixing frames, an insulating plate located on the side of each fixing frame opposite to the battery, and a confluence between each fixing frame and a corresponding insulating plate plate; each fixed frame includes a base plate, a side plate formed by extending from the edge of the base plate part, and a pair of fixed clips located at both ends of the side plate, and each cover plate is connected to two adjacent ones on a pair of fixed frames. The fixed snap fits; multiple battery modules are arranged side by side, and the insulating plates of two adjacent battery modules lean against each other; each fixing seat is provided with multiple fixing protrusions, and one end of each battery module leans against one of them One side of the fixing seat is provided with a fixing protrusion, and the other end abuts against the side of another fixing seat provided with a fixing protrusion; each fixing rod can pass through the fixing frames of multiple battery modules in sequence or pass through multiple battery modules in sequence. The fixing frame of the battery module and the multiple fixing protrusions of a fixing rod enable the fixed connection of multiple battery modules; the two ends of each electrical connection piece are respectively electrically connected with the bus pieces of two adjacent battery modules and accommodated in the adjacent In the corresponding fixing positions of the two battery modules.

In a preferred embodiment, each battery module includes a first end and a second end that are far away from each other, the connection lines of the first ends of the plurality of battery modules are parallel to the connection lines of the second ends of the plurality of battery modules, and the first ends The height is greater than the height of the second end; the side plate of each fixing frame is located between the first end and the second end, and the side plate is stepped.

In a preferred embodiment, the base plate of each fixing frame includes a first surface and a second surface opposite to each other and a plurality of receiving holes passing through the first surface and the second surface, and the side plates are perpendicular to the The base plate is located on the side of the first surface, and the bus plate is against the second surface; in a battery module, one end of each battery passes through a receiving hole of one of the fixing brackets and connects with the corresponding The bus board is electrically connected, and the other end passes through a corresponding receiving hole of the other fixing frame and is electrically connected with the corresponding bus board.

In a preferred embodiment, a plurality of hooks located on one side of the second surface are provided on the edge of each fixing frame base plate, the shape of the insulating plate corresponds to the shape of the base plate, and each insulating plate The edge is provided with a plurality of slots corresponding to the hooks on the base plate; in a battery module, the insulating plate abuts against the side of the bus plate away from the fixing frame, and passes through the hooks. The snap fit with the slot makes the insulating board fixedly connected with a corresponding fixing bracket.

In a preferred embodiment, each fixing base includes a first fixing plate and a second fixing plate arranged perpendicular to each other, and a plurality of fixing protrusions are provided on the side of the first fixing plate away from the second fixing plate. Each fixing protrusion has a through hole whose center line is parallel to the first fixing plate; The corresponding through-holes and through-holes enable the fixed connection of multiple battery modules.

In a preferred embodiment, the fixing seat further includes a pair of lugs extending from both ends of the first fixing plate to a side away from the second fixing plate, each lug is provided with a via hole The two ends of the fixing rod passing through a plurality of corresponding through holes and the plurality of through holes in sequence also pass through a pair of through holes corresponding to a pair of tabs.

In a preferred embodiment, both the first fixing plate and the second fixing plate are rectangular; one side of the second fixing plate is connected to the first fixing plate, and the opposite side is provided with multiple evenly spaced mounting holes.

In a preferred embodiment, the bus board located between a fixed frame and a corresponding insulating board includes at least one main board and a connecting board extending from the edge of one of the main board parts and perpendicular to the main board; Leaning against the base plate corresponding to a fixed frame, the connecting plate extends into a fixed clamping position of the fixed frame.

In a preferred embodiment, each connection plate is provided with a first connection hole, and the two ends of each electrical connection sheet are respectively provided with a second connection hole; a bolt is used to pass through a first connection hole and a corresponding second connection hole One end of the electrical connecting sheet is connected to a corresponding connecting plate and electrically contacted.

In a preferred embodiment, a collection line is also included, and the collection line is covered outside the fixing frame.

The beneficial effects of the battery module provided by the utility model are as follows: each battery module is an independent unit, which can realize modular production and assembly, and is convenient for later maintenance and replacement; The problem that the group is too long is not easy to install; the manifold is connected to each other by electrical connectors, which eliminates the PCB board, which is conducive to miniaturization design; in addition, the trapezoidal design increases the space utilization.

【Description of drawings】

Fig. 1 is a three-dimensional structural view of the partially assembled battery module provided by the present invention.

FIG. 2 is an exploded view of the battery module shown in FIG. 1 .

FIG. 3 is a three-dimensional structural view of a battery module in the battery module shown in FIG. 1 .

FIG. 4 is an exploded view of a battery module shown in FIG. 3 .

FIG. 5 is a partially enlarged view of area A in FIG. 2 .

FIG. 6 is a partially enlarged view of area B in FIG. 5 .

【detailed description】

In order to make the purpose, technical solution and beneficial technical effects of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementations described in this specification are only for explaining the utility model, not for limiting the utility model.

Referring to FIGS. 1 to 3 , the present invention provides a battery module 100 , which includes a plurality of battery modules 10 , a pair of fixing bases 20 , a plurality of fixing rods 30 and a plurality of electrical connecting pieces 40 . In this embodiment, each battery module 10 includes a first end 11 and a second end 12 that are far away from each other, and multiple battery modules 10 are arranged side by side, that is, the connection lines of the first ends 11 of multiple battery modules 10 are parallel to multiple battery cells. The wiring of the second terminal 12 of the module 10 . A plurality of battery modules 10 are located between the pair of fixing seats 20 , that is, the first end 11 of each battery module 10 abuts against one of the fixing seats 20 , and the second end 12 of each battery module 10 abuts against the other fixing seat 20 . Each fixing rod 30 can pass through and be fixedly connected to a plurality of battery modules 10 in turn. The electrical connection sheet 40 can electrically connect the plurality of battery modules 10 .

3 and FIG. 4, each battery module 10 includes a pair of cover plates 13, a pair of spaced opposite and symmetrically arranged fixing frames 14, a plurality of batteries 15 located between the pair of fixing frames 14, and a plurality of batteries 15 located between each fixing frame. 14 is an insulating plate 16 on the side opposite to the battery 15 and a bus plate 17 located between each fixing frame 14 and a corresponding insulating plate 16 . Specifically, each fixing frame 14 includes a base plate 141 , a side plate 142 extending from a part of the edge of the base plate 141 , and a pair of fixing positions 143 located at two ends of the side plate 142 . Each cover plate 13 is snap-fitted with corresponding two fixing positions 143 on a pair of fixing brackets 14 . In this embodiment, the height of the first end 11 of the battery module 10 is greater than the height of the second end 12, and the side plate 142 of each fixing frame 14 is located between the first end 11 and the second end 12. Between, and the side plate 142 is stepped.

Please also refer to FIG. 5 , the base plate 141 of each fixing frame 14 includes a first surface 1411 and a second surface 1412 opposite to each other and a plurality of receiving holes 1413 passing through the first surface 1411 and the second surface 1412 . The side plate 142 is perpendicular to the base plate 141 and located on a side of the first surface 1411 , and the bus plate 17 is against the second surface 1412 . In this embodiment, a plurality of receiving holes 1413 on each substrate 141 are arranged in a matrix, and the battery 15 is in a cylindrical shape; in a battery module 10, one end of each battery 15 passes through one of the fixing brackets 14 The receiving hole 1413 is electrically connected to the corresponding bus plate 17 , and the other end passes through the corresponding receiving hole 1413 of the other fixing frame 14 and is electrically connected to the corresponding bus plate 17 .

Please also refer to FIG. 6 , the shape of the insulating plate 16 corresponds to the shape of the base plate 141 , and a plurality of hooks 1414 located on one side of the second surface 1412 are provided on the edge of each base plate 141 , each A plurality of slots 161 corresponding to the hooks 1414 on the base plate 141 are provided on the edge of the insulating board 16 . In a battery module 10, the insulating plate 16 is against the side of the bus plate 17 away from the base plate 141, and the insulating plate 16 is connected to the corresponding A fixed frame 14 is fixedly connected.

Please refer to FIG. 2 and FIG. 5 , each fixing base 20 includes a first fixing plate 21 and a second fixing plate 22 arranged perpendicularly to each other and two ends of the first fixing plate 21 away from the second fixing plate 22 A pair of lugs 23 formed by extending from one side. Each battery module 10 abuts against the side of the first fixing plate 21 away from the second fixing plate 22 , and the side of the first fixing plate 21 away from the second fixing plate 22 is provided with a plurality of Each of the fixing protrusions 211 has a through hole 2111 whose central line is parallel to the first fixing plate 21 . Each tab 23 defines a through hole 231 . In this embodiment, both the first fixing plate 21 and the second fixing plate 22 are rectangular, one side of the second fixing plate 22 is connected to the first fixing plate 21, and the opposite side is opened There are a plurality of mounting holes 221 evenly distributed. The battery module 100 is mounted on the vehicle through a pair of mounting holes 221 of the fixing base 20 .

Please also refer to FIG. 4 , each fixing frame 14 is provided with a plurality of through holes 144, and each fixing rod 30 can pass through the corresponding plurality of through holes 144 in sequence or pass through the corresponding plurality of through holes 144, a plurality of The through hole 2111 and the pair of through holes 231 make the plurality of battery modules 10 fixedly connected.

Further, the bus board 17 located between a fixing frame 14 and a corresponding insulating board 16 includes at least one main board 171 and a connecting board 172 extending from a part of the edge of one of the main boards 171 and perpendicular to the main board 171 . The main board 171 abuts against the base plate 141 corresponding to a fixed frame 14 , and the connecting plate 172 extends into a fixed clip 143 of the fixed frame 14 . Both ends of each electrical connection piece 40 are respectively electrically connected to the bus bars 17 of two adjacent battery modules 10 and accommodated in corresponding fixing positions 143 of the two adjacent battery modules 10 . In this embodiment, each connecting plate 172 is provided with a first connecting hole 1721, and the two ends of each electrical connecting sheet 40 are respectively provided with a second connecting hole 41; a bolt is used to pass through a first connecting hole 1721 and a corresponding first connecting hole 1721. The two connecting holes 41 connect one end of the electrical connecting piece 40 to a corresponding connecting plate 172 and make electrical contact.

Please refer to FIG. 2 , the battery module 100 also includes a collection line 50, which can replace the traditional collection board to collect temperature and voltage. Aesthetics and improved reliability.

The beneficial effects of the battery module provided by the utility model are as follows: each battery module is an independent unit, which can realize modular production and assembly, and is convenient for later maintenance and replacement; The problem that the group is too long is not easy to install; the manifold is connected to each other by electrical connectors, which eliminates the PCB board, which is conducive to miniaturization design; in addition, the trapezoidal design increases the space utilization.

The utility model is not limited to the description in the description and the implementation, so those skilled in the art can easily realize additional advantages and modifications, so without departing from the spirit and general concept defined by the claims and equivalent scope Without limitation, the invention is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein.

Claims (10)

1. A battery module, characterized in that: it includes a plurality of battery modules, a pair of fixing seats, a plurality of fixing rods and a plurality of electrical connecting pieces; each battery module includes a pair of cover plates, a pair of spaced opposite and symmetrical The set fixing frame, a plurality of batteries located between a pair of fixing frames, an insulating plate located on the side of each fixing frame opposite to the battery, and a bus plate located between each fixing frame and a corresponding insulating plate; Each fixing frame includes a base plate, a side plate extending from a part of the edge of the base plate and a pair of fixing clips located at both ends of the side plate, and each cover plate is connected to two adjacent fixing clips on a pair of fixing frames. snap fit; multiple battery modules are arranged side by side, and the insulating plates of two adjacent battery modules are against each other; each fixing seat is provided with multiple fixing protrusions, and one end of each battery module is leaning against one of the fixing seats One side with a fixing protrusion, and the other end leans against the side of another fixing seat with a fixing protrusion; each fixing rod can pass through the fixing frames of multiple battery modules in sequence or through multiple battery modules in sequence The fixing frame and multiple fixing protrusions of a fixing rod enable multiple battery modules to be fixedly connected; the two ends of each electrical connecting piece are respectively electrically connected to the bus bars of two adjacent battery modules and are accommodated in two adjacent battery modules. in the corresponding fixing slot of the battery module. 2. The battery module according to claim 1, wherein each battery module includes a first end and a second end that are far away from each other, and the connection lines of the first ends of the plurality of battery modules are parallel to the second ends of the plurality of battery modules. The connection line of the two ends, the height of the first end is greater than the height of the second end; the side plate of each fixing frame is located between the first end and the second end, and the side plate is stepped. . 3. The battery module according to claim 1, wherein the base plate of each fixing frame comprises a first surface and a second surface opposite to each other and a plurality of holes penetrating through the first surface and the second surface. The receiving hole, the side plate is perpendicular to the base plate and is located on the side of the first surface, and the bus plate is against the second surface; in a battery module, one end of each battery passes through one of the One receiving hole of the fixing frame is electrically connected with the corresponding busbar, and the other end passes through the corresponding receiving hole of the other fixing frame and is electrically connected with the corresponding busbar. 4. The battery module according to claim 3, characterized in that: the edge of each fixing frame base plate is provided with a plurality of hooks located on the side of the second surface, and the shape of the insulating plate is the same as that of the base plate The shape of each insulating plate is consistent, and the edge of each insulating plate is provided with a plurality of slots corresponding to the hooks on the substrate; in a battery module, the insulating plate leans against the bus plate and is away from the One side of the fixing frame, and the insulating plate is fixedly connected with a corresponding fixing frame through the snap fit of the hook and the slot. 5. The battery module according to claim 1, wherein each fixing seat includes a first fixing plate and a second fixing plate arranged perpendicular to each other, and the first fixing plate is far away from the side of the second fixing plate. One side is provided with a plurality of said fixing protrusions, and each fixing protrusion has a through hole whose center line is parallel to the first fixing plate; each fixing bracket is provided with a through hole, and each fixing rod can pass through multiple A plurality of battery modules are fixedly connected through the corresponding through holes or through a plurality of corresponding through holes and through holes in sequence. 6. The battery module according to claim 5, wherein the fixing base further comprises a pair of lugs extending from both ends of the first fixing plate to a side away from the second fixing plate Each ear piece is provided with a through hole, and the two ends of the fixing rod passing through a plurality of corresponding through holes and the plurality of through holes in turn pass through a pair of through holes corresponding to a pair of ear pieces. 7. The battery module according to claim 6, wherein: the first fixing plate and the second fixing plate are rectangular; one side of the second fixing plate is connected to the first fixing plate Connected to each other, and the opposite side is provided with a plurality of evenly distributed mounting holes. 8. The battery module according to claim 1, wherein the bus plate located between a fixing frame and a corresponding insulating plate includes at least one main board and is formed by extending from an edge of one of the main boards and perpendicular to The connecting plate of the main board; the main board leans against the base plate corresponding to a fixed frame, and the connecting plate extends into a fixed clamping position of the fixed frame. 9. The battery module as claimed in claim 8, wherein each connection plate is provided with a first connection hole, and the two ends of each electrical connection piece are respectively provided with a second connection hole; a bolt is used to pass through a first connection hole. A connection hole and a corresponding second connection hole connect one end of the electrical connecting piece with a corresponding connecting plate and make electrical contact. 10 . The battery module according to claim 1 , further comprising a collection line, and the collection line is covered outside the fixing frame. 11 .