CN209981321U

CN209981321U - Battery module structure

Info

Publication number: CN209981321U
Application number: CN201920926187.6U
Authority: CN
Inventors: 李穷; 钱伟; 潘炳涛
Original assignee: Anhui Woboyuan Technology Co Ltd
Current assignee: Anhui Woboyuan Technology Co Ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-01-21
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a battery module structure, which comprises a battery module, a plurality of fixed plates and end plates; the battery module comprises a plurality of battery rows which are arranged in parallel, each battery row comprises a plurality of single batteries which are arranged in parallel, and a fixing plate is clamped between every two adjacent battery rows; the fixing plates comprise two opposite side surfaces and two opposite end surfaces connected with the side surfaces, the side surfaces are provided with accommodating grooves corresponding to the number of the single batteries in each battery row, and the single batteries are accommodated in the accommodating grooves of two adjacent fixing plates; the end plate is fixed on the end face of the fixing plate and connected with the end faces. The utility model provides a battery module structure can avoid battery cell to bump in the application, and the fastening nature between a plurality of battery cells is good, and battery cell is difficult not hard up, and the vibration resistance is good, and the end plate has further improved the structure steadiness of battery module structure.

Description

Battery module structure

[ technical field ] A method for producing a semiconductor device

The utility model relates to a power battery technical field especially relates to a battery module structure.

[ background of the invention ]

The power battery has the advantages of high energy density, good safety, light weight, long cycle life and the like, and is widely applied to various energy storage systems. In order to meet the power requirement of the energy storage system, a plurality of single batteries are usually required to be connected in parallel and then connected in series to form a battery module, however, the conventional battery module structure is that the plurality of single batteries are directly arranged between a pair of battery clamping plates, the tightness among the plurality of single batteries is poor, the single batteries are easy to loosen after long-time use, and the vibration resistance is poor.

In view of the above, it is desirable to provide a new battery module structure to overcome the above drawbacks.

[ Utility model ] content

The utility model aims at providing a battery module structure that the fastening nature between a plurality of battery cells is good, battery cell is difficult not hard up, the vibration resistance is good.

In order to achieve the purpose, the battery module structure comprises a battery module, a plurality of fixing plates and end plates; the battery module comprises a plurality of battery rows which are arranged in parallel, each battery row comprises a plurality of single batteries which are arranged in parallel, and a fixing plate is clamped between every two adjacent battery rows; the fixing plates comprise two opposite side surfaces and two opposite end surfaces connected with the side surfaces, the side surfaces are provided with accommodating grooves corresponding to the number of the single batteries in each battery row, and the single batteries are accommodated in the accommodating grooves of two adjacent fixing plates; the end plate is fixed on the end face of the fixing plate and connected with the end faces.

In a preferred embodiment, the fixing plate is further provided with a through hole penetrating through two opposite end surfaces.

In a preferred embodiment, the battery module further comprises two edge plates disposed at edges of the battery module and used for fixing the battery rows located at the edges of the battery module.

In a preferred embodiment, a side wall of the edge plate is provided with a groove corresponding to the number of the single batteries in each battery row, and the single batteries in the battery rows at the edge of the battery module are accommodated in the grooves; the other side wall of the edge plate is a smooth plane.

In a preferred embodiment, the end plate is further secured to the end wall of the edge plate at portions extending laterally from both ends of the end plate.

In a preferred embodiment, the fixing plate and the edge plate are formed by processing aluminum material, and the end plate is welded to an end surface of the fixing plate and an end wall of the edge plate.

In a preferred embodiment, the length of the end surface of the fixing plate is less than the height of the unit cell.

In a preferred embodiment, the single battery is cylindrical, and the receiving groove of the fixing plate and the groove of the edge plate are semicircular.

Compared with the prior art, the utility model provides a battery module structure, through set up a fixed plate between two adjacent battery rows, the monomer battery in the battery row is acceptd in the accepting groove of two adjacent fixed plates, and the periphery wall of monomer battery supports and leans on in the accepting groove, can avoid monomer battery to bump in the application, and the fastening nature between a plurality of monomer batteries is good, and monomer battery is difficult for becoming flexible, and the vibration resistance is good; and, the end plate is fixed in on the terminal surface of fixed plate and connect a plurality of terminal surfaces, and the end plate has further improved the structure steadiness of battery module structure.

[ description of the drawings ]

Fig. 1 is a schematic view of a battery module structure provided by the present invention.

Fig. 2 is a schematic view of a fixing plate portion of the battery module structure shown in fig. 1.

Fig. 3 is a schematic view of an edge plate portion of the battery module structure shown in fig. 1.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration only and not by way of limitation.

Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic view of a battery module structure 100 according to the present invention, and fig. 2 is a partial schematic view of the battery module structure 100 shown in fig. 1. The utility model provides a battery module structure 100, including battery module 10, a plurality of fixed plate 20 and end plate 30.

The battery module 10 includes a plurality of battery rows 11 arranged in parallel, each battery row 11 includes a plurality of unit batteries 111 arranged in parallel, and a fixing plate 20 is interposed between two adjacent battery rows 11; the fixing plate 20 comprises two opposite side surfaces 21 and two opposite end surfaces 22 connected with the side surfaces 21, the side surfaces 21 are provided with accommodating grooves 23 corresponding to the number of the single batteries 111 in each battery row 11, and the single batteries 111 are accommodated in the accommodating grooves 23 of two adjacent fixing plates 20; the end plate 30 is fixed to the end face 22 of the fixed plate 20 and connected to the end faces 22.

The utility model provides a battery module structure 100, through establish a fixed plate 20 between two adjacent battery rows 11 with pressing from both sides, the battery cell 111 in the battery row 11 is acceptd in the accepting groove 23 of two adjacent fixed plates 20, and the periphery wall of battery cell 111 supports and leans on in the accepting groove 23 promptly, can avoid battery cell 111 to collide in the application, and the fastening nature between a plurality of battery cells 111 is good, and battery cell 111 is difficult not hard up, and anti-vibration is good; the end plates 30 are fixed to the end surfaces 22 of the fixing plates 20 and connect the end surfaces 22, and the end plates 30 further improve structural stability of the battery module structure 100.

Furthermore, the fixing plate 20 is further provided with a through hole 201 penetrating through the two opposite end surfaces 22, and the through hole 201 can reduce the weight of the fixing plate 20, so that the weight of the whole battery module structure 100 is reduced, and the energy density of the battery module structure 100 is improved; moreover, the through holes 201 are beneficial to heat dissipation of the single batteries 111, and the heat dissipation performance of the battery module structure 100 is improved. In the present embodiment, the number of the through holes 201 opened in each fixing plate 20 is three.

Referring to fig. 3, the battery module structure 100 of the present invention further includes two edge plates 40, wherein the edge plates 40 are disposed at the edge of the battery module 10 and are used for fixing the battery row 11 at the edge of the battery module 10. Specifically, a side wall 41 of the edge plate 40 is provided with grooves 401 corresponding to the number of the single batteries 111 in each battery row 11, and the single batteries 111 in the battery row 11 located at the edge of the battery module 10 are accommodated in the grooves 401; the other side wall 41 of the edge plate 40 is a smooth flat surface. The two edge plates 40 further fix the unit cells 111 in the battery row 11 located at the edge of the battery module 10, improving the structural stability of the battery module structure 100.

Furthermore, the extending portions of the two ends of the end plate 30 are fixed to the end walls 42 of the edge plates 40, and the end plate 30 can connect the end surface 22 of the fixing plate 20 and the end walls 42 of the edge plates 40, thereby improving the stability of the fixing plate 20 and the edge plates 40. Specifically, the fixing plate 20 and the edge plate 40 are formed by processing aluminum materials, the end plate 30 is welded to the end surface 22 of the fixing plate 20 and the end wall 42 of the edge plate 40, and the fixing plate 20 and the edge plate 40 are formed by processing aluminum materials with light materials, so that the weight of the battery module structure 100 is further reduced.

Specifically, the length H of the end face 22 of the fixing plate 20 is smaller than the height H of the single battery 111, so that the two adjacent fixing plates 20 only clamp the middle position of the single battery 111, and the fixing plate 20 is far away from the positive end 112 of the single battery 111, thereby preventing the short circuit of the single battery 111 and improving the safety of the battery module structure 100.

In this embodiment, the single battery 111 is cylindrical, the receiving grooves 23 of the fixing plate 20 and the grooves 401 of the edge plate 40 are both semicircular, and the outer circumferential wall of the single battery 111 abuts between two adjacent receiving grooves 23, or the outer circumferential wall of the single battery 111 abuts between the groove 401 and the receiving groove 23 adjacent to the groove 401. It is understood that the shapes of the receiving groove 23 and the groove 401 correspond to the shape of the single battery 111, for example, when the single battery 111 is a rectangular parallelepiped, the shapes of the receiving groove 23 and the groove 401 are rectangular.

The invention is not limited solely to that described in the specification and the embodiments, and additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a battery module structure which characterized in that: comprises a battery module, a plurality of fixing plates and end plates; the battery module comprises a plurality of battery rows which are arranged in parallel, each battery row comprises a plurality of single batteries which are arranged in parallel, and a fixing plate is clamped between every two adjacent battery rows; the fixing plates comprise two opposite side surfaces and two opposite end surfaces connected with the side surfaces, the side surfaces are provided with accommodating grooves corresponding to the number of the single batteries in each battery row, and the single batteries are accommodated in the accommodating grooves of two adjacent fixing plates; the end plate is fixed on the end face of the fixing plate and connected with the end faces.

2. The battery module structure according to claim 1, wherein: the fixing plate is also provided with through holes penetrating through the two opposite end faces.

3. The battery module structure according to claim 2, wherein: the battery pack further comprises two edge plates, wherein the edge plates are arranged at the edge of the battery module and used for fixing the battery row at the edge of the battery module.

4. The battery module structure according to claim 3, wherein: one side wall of the edge plate is provided with grooves corresponding to the number of the single batteries in each battery row, and the single batteries in the battery rows at the edge of the battery module are accommodated in the grooves; the other side wall of the edge plate is a smooth plane.

5. The battery module structure according to claim 4, wherein: the end plates are fixed on the end walls of the edge plates by parts which extend towards two sides and are extended from two ends of the end plates.

6. The battery module structure according to claim 5, wherein: the fixed plate and the edge plate are formed by processing aluminum materials, and the end plate is welded on the end face of the fixed plate and the end wall of the edge plate.

7. The battery module structure according to claim 6, wherein: the length of the end face of the fixing plate is smaller than the height of the single battery.

8. The battery module structure according to claim 7, wherein: the single battery is cylindrical, and the accommodating groove of the fixing plate and the groove of the edge plate are semicircular.