CN218385535U

CN218385535U - Power battery module structure

Info

Publication number: CN218385535U
Application number: CN202222232107.1U
Authority: CN
Inventors: 章凯; 高顺; 卫云峰; 崔亚平; 姜丹丹
Original assignee: Wuhu Etc Battery Ltd
Current assignee: Wuhu Etc Battery Ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-01-24
Anticipated expiration: 2032-08-24

Abstract

The utility model belongs to the technical field of power battery's power battery module structure. Cushion strip (30) under the glue film (20) surface-mounted battery group of tray (10) upper surface, place a set of strap module (50) under per twice or more than the battery group on cushion strip (30), cushion strip (61) on every group strap module (50) upper surface pastes the battery group more than twice or twice respectively, cushion strip (61) top sets up insulating boot (70) on the battery group, strap module (50) and tray (10) are connected through group battery connecting plate (40) and group battery screw rod (41). Power battery module structure, simplify the installation degree of difficulty of module, it is efficient in groups, increase space utilization.

Description

Power battery module structure

Technical Field

The utility model belongs to the technical field of power battery, more specifically say, relate to a power battery module structure.

Background

The battery cell module is assembled and then integrally installed inside the battery box body. Limited space of the entire vehicle, it is necessary to assemble as many unit cells as possible inside the PACK. In the use of the battery pack, some use working conditions with special conditions exist. When the working condition is applied, the safety is firstly emphasized, and the energy density is improved on the premise of ensuring the safety. In order to improve the energy density, the number of battery packs or single batteries in the battery pack needs to be increased, the length of the battery packs is too long due to the increase of the number of the single batteries, and after the length of the battery packs exceeds a certain limit, the constraint of the battery packs is invalid, so that the battery packs cannot be effectively installed in groups; splitting a long battery pack into a plurality of small battery packs can lead to increase of the number of parts, increase of installation difficulty and reduction of space utilization rate. The installation of little module needs arrange a plurality of installation roof beams in battery package inside, has increased the complexity of box structure, has increased the complexity of installation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that: the utility model provides a simple structure, the group battery adopts the module form of reintegrating, installs on bracket platform by the integration of a plurality of hoop belt modules, adopts adhesive connection between the big face of group battery electricity core, also adopts sticky and the form that the bolt linked firmly between module and integrated platform, predetermines BMU mounted position and hoist and mount latch closure on the integrated platform to simplify the installation degree of difficulty of module, it is efficient in groups, increase space utilization's power battery module structure.

To solve the technical problem, the utility model discloses the technical scheme who takes does:

the utility model relates to a power battery module structure, the tray upper surface sets up the glue film, and buffer strip under the glue film upper surface pasted group battery places a set of strap formula module under per twice or the more than twice group battery on the buffer strip, and buffer strip on the group battery is pasted respectively on twice or the more than twice to every group strap formula module upper surface, and buffer strip top sets up the insulating boot on the group battery, and strap formula module and tray pass through group battery connecting plate and group battery screw rod and connect.

The battery pack connecting plate is arranged to be of a bent L-shaped structure, each battery pack connecting plate is clamped at a position corresponding to the side edge of the band-type module, and the battery pack screw penetrates through the battery pack connecting plate, the band-type module and the screw hole in the tray to be connected in a screwing mode.

The tray contain mounting panel, supporting beam, end plate installation roof beam, tray An Liang, fixed knot, hoist and mount latch closure, BMU mounting bracket.

The lower surface of the mounting plate is fixedly connected with the support beam, the tray An Liang, the fixing structure and the reinforcing structure, and the upper surface of the mounting plate is fixedly connected with the end plate mounting beam, the hoisting ring buckle and the BMU mounting frame.

The band type module comprises an end plate, a single battery, an electric connector, a band, an output electrode insulating base, a heat insulation sheet, an end plate insulating sheet and glue.

The battery cell set up a plurality ofly, a plurality of battery cell 50B laminating is arranged, a plurality of battery cell each end sets up an end plate respectively, electric connector 50C connects a plurality of battery cell, two end plates of strap suit, a plurality of battery cell clamp are between two end plates, the battery cell of this end plate of every end plate laminating sets up end plate insulating piece and heat insulating sheet respectively, sets up output pole insulating seat on the end plate.

The single batteries are separated through the heat insulation sheet, the output pole insulation seat on the end plate is used as the output position fixing position of the electric connecting piece, and the binding surfaces among the single batteries are fixedly connected through glue.

An inter-group electric connection piece is arranged between the band type modules.

And the electric connecting piece is provided with a plurality of small holes which are used as fixing positions of the voltage and temperature sensing acquisition terminals.

The insulating cover covers the band-type module, and the insulating cover is adhered to the upper surface of the band-type module through a double-sided adhesive tape or fixed on the upper surface of the band-type module through rivets.

Adopt the technical scheme of the utility model, theory of operation and beneficial effect are as follows:

power battery module structure, 1, the installation technology degree of difficulty reduces. And a structural form of large module integration is adopted, so that the installation process and material control are simplified. 2. The grouping efficiency is high. The method of gluing and bundling the strap is adopted for grouping, the process is simple, the operation is convenient, and the assembly efficiency is high. 3. The space utilization rate is high. The integrated tray fixes the module on the surface of the integrated tray through glue and fixing bolts, and the strength of the module can be compensated. Power battery module structure, simple structure, the group battery adopts the module form of reintegrating, installs on the bracket platform by many hoop belt module integrations, adopts adhesive connection between the big face of group battery electricity core, also adopts sticky and the form that the bolt linked firmly between module and integrated platform, predetermines BMU mounted position and hoist and mount latch closure on the integrated platform, simplifies the installation degree of difficulty of module, it is efficient in groups, increases space utilization.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

fig. 1 is an explosion structure diagram of the power battery module structure according to the present invention;

fig. 2 is a schematic structural view of the power battery module structure according to the present invention;

fig. 3 is an exploded schematic view of a tray of the power battery module structure according to the present invention;

fig. 4 is a schematic structural view of a tray of the power battery module structure according to the present invention;

fig. 5 is a schematic diagram of an explosion structure of a band type module of the power battery module structure according to the present invention;

fig. 6 is a schematic structural view of a band type module of the power battery module structure according to the present invention;

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings, wherein the embodiments of the present invention are described in detail with reference to the accompanying drawings, for example, the shapes, structures, mutual positions and connection relations of the components, the functions and operation principles of the components, and the like:

as shown in fig. 1-6, the utility model relates to a power battery module structure, the tray 10 upper surface sets up glue film 20, glue film 20 upper surface pastes buffering strip 30 under the group battery, place a set of hoop formula module 50 under per twice or more than twice buffering strip 30 on the group battery, every group hoop formula module 50 upper surface pastes buffering strip 61 on twice or more than twice group battery respectively, buffering strip 61 top sets up insulating boot 70 on the group battery, hoop formula module 50 and tray 10 pass through group battery connecting plate 40 and group battery screw 41 and connect. The structure provides an improved technical scheme aiming at the defects in the prior art. Mainly include tray 10, glue film 20, buffering strip 30 under the group battery, group battery connecting plate 40, group battery screw rod 41, strap formula module 50, intergroup electric connector 60, buffering strip 61 on the battery membrane, insulating boot 70. The battery pack structure can be a band type module, can also be a battery pack formed by combining end plates, side plates and bottom plates, or can be a mode of directly stacking battery cells on an integrated platform; the intergroup electric connecting pieces 60 can be copper bars or wire harnesses and the like; the structure of the tray 1010 can be a sheet metal combined welding piece, a square tube or a plate; the glue layer 20 may be glue, double-sided tape or other glue type. The electric connecting piece 50C and the single battery pole can be connected in a welding or bolt mode; the voltage and temperature data can be collected in the form of a wire harness or in the form of an FPC (flexible printed circuit) and the like. The insulating cover 70 may be bolted to the end plate with insulating material or glued to the cell surface or side. By adopting the structure, 1, the difficulty of the installation process is reduced. And a structural form of large module integration is adopted, so that the installation process and material control are simplified. 2. The grouping efficiency is high. The method of gluing and bundling the strap is adopted for grouping, the process is simple, the operation is convenient, and the assembly efficiency is high. 3. The space utilization rate is high. The integrated tray fixes the module on the surface of the integrated tray through glue and fixing bolts, so that the strength of the module can be compensated, and the overall strength performance is improved. Power battery module structure, simple structure, the group battery adopts the module form of reintegrating, installs on bracket platform by many hoop formula module integrations, adopts adhesive connection between the big face of group battery electricity core, also adopts sticky and the form that the bolt linked firmly between module and integrated platform, predetermines BMU mounted position and hoist and mount latch closure on the integrated platform to simplify the installation degree of difficulty of module, it is efficient in groups, increase space utilization.

The battery pack connecting plate 40 is arranged to be of a bent L-shaped structure, each battery pack connecting plate 40 is clamped at the side position of a corresponding band-type module 50, and the battery pack screw 41 penetrates through the battery pack connecting plate 40 and the band-type module 50 to be connected with the screw hole in the tray 10 in a screwing mode. In the structure, the battery pack connecting plate 40 is clamped at the side position of the belt-type module 50, the plurality of battery pack screws 41 respectively penetrate through the plurality of battery pack connecting plates 40, and each battery pack screw 41 respectively penetrates through the hole in the belt-type module and is connected with the tray to form an integrated structure.

The tray 10 comprises a mounting plate 10A, a support beam 10B, an end plate mounting beam 10C, a tray An Liang D, a fixing structure 10E and a mounting frame 10G for a hoisting buckle 10F, BMU. The BMU refers to a battery management unit. The lower surface of the mounting plate 10A is fixedly connected with a support beam 10B, a tray An Liang D, a fixing structure 10E and a reinforcing structure 10H, and the upper surface of the mounting plate 10A is fixedly connected with an end plate mounting beam 10C and a hoisting buckle 10F, BMU mounting frame 10G. Above-mentioned structure, whole tray is formed by a plurality of part welding, and the plane degree of whole tray is guaranteed through mounting panel 10A, tray An Liang D and fixed knot structure 10E combined action. The tray is simple to process, and the strength meets the requirement.

The band type module 50 includes an end plate 50A, a single battery 50B, an electric connector 50C, a band 50D, an output electrode insulating base 50E, a heat insulating sheet 50F, an end plate insulating sheet 50G, and a glue 50H. The battery cell 50B set up a plurality ofly, a plurality of battery cell 50B laminating is arranged, each end of a plurality of battery cell 50B sets up an end plate 50A respectively, electric connector 50C connects a plurality of battery cell 50B, two end plates 50A of strap 50D suit, a plurality of battery cell 50B press from both sides and establish between two end plates 50A, the battery cell 50B of this end plate 50A of every end plate 50A laminating sets up end plate insulating piece 50G and heat insulating sheet 50F respectively, set up output pole insulating seat 50E on the end plate 50A. The single batteries 50B are separated by a heat insulation sheet 50F, an output electrode insulation seat 50E on the end plate 50A is used as an output position fixing position of the electric connector 50C, and binding surfaces among the single batteries 50B are fixedly connected by using glue 50H. Inter-block electrical connections 60 are provided between the band modules 50. The electric connector 50C is provided with a plurality of small holes as fixing positions of the voltage and temperature sensing acquisition terminals. Above-mentioned structure, two end plates 50A of whole strap formula module 50 suit through strap 50D, and a plurality of battery cell 50B press from both sides and are being held between two end plates 50A, like this, form the reliable fixed of a plurality of battery cell 50B, satisfy the requirement.

The insulating cover 70 covers the band module 50, and the insulating cover 70 is fixed on the upper surface of the band module 50 by double-sided tape adhesion or rivets.

The present invention has been described in detail with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and the present invention can be implemented in various ways without modification, and the present invention is not limited by the above embodiments.

Claims

1. The utility model provides a power battery module structure which characterized in that: tray (10) upper surface sets up glue film (20), cushion strip (30) under glue film (20) upper surface paste group battery, place a set of strap formula module (50) under per twice or more than twice on group battery cushion strip (30), cushion strip (61) on every group strap formula module (50) upper surface paste the group battery more than twice or twice respectively, cushion strip (61) top sets up insulating boot (70) on the group battery, strap formula module (50) and tray (10) are connected through group battery connecting plate (40) and group battery screw rod (41).

2. The power battery module structure of claim 1, wherein: the battery pack connecting plate (40) is of a bent L-shaped structure, each battery pack connecting plate (40) is clamped at the side position of a corresponding band type module (50), and a battery pack screw rod (41) penetrates through the battery pack connecting plate (40) and the band type module (50) to be connected with a screw hole in the tray (10) in a screwing mode.

3. The power battery module structure of claim 1 or 2, characterized in that: tray (10) contain mounting panel (10A), supporting beam (10B), end plate installation roof beam (10C), tray An Liang (10D), fixed knot constructs (10E), hoist and mount latch closure (10F), BMU mounting bracket (10G).

4. The power battery module structure of claim 3, wherein: mounting panel (10A) lower fixed surface connect a supporting beam (10B), tray An Liang (10D), fixed knot constructs (10E), additional strengthening (10H), fixed surface connects end plate installation roof beam (10C), hoist and mount latch closure (10F), BMU mounting bracket (10G) on mounting panel (10A).

5. The power battery module structure of claim 1 or 2, characterized in that: the band type module (50) comprises an end plate (50A), a single battery (50B), an electric connecting piece (50C), a band (50D), an output electrode insulating base (50E), a heat insulation sheet (50F), an end plate insulating sheet (50G) and glue (50H).

6. The power battery module structure of claim 5, wherein: monomer battery (50B) set up a plurality ofly, a plurality of monomer batteries (50B) laminating is arranged, each end of a plurality of monomer batteries (50B) sets up an end plate (50A) respectively, a plurality of monomer batteries (50B) are connected in electric connector (50C), two end plates (50A) of strap (50D) suit, a plurality of monomer batteries (50B) press from both sides and press from both sides between two end plates (50A), monomer battery (50B) of this end plate (50A) of every end plate (50A) laminating set up end plate insulating piece (50G) and heat insulating sheet (50F) respectively, set up output utmost point insulating seat (50E) on end plate (50A).

7. The power battery module structure of claim 6, wherein: the single batteries (50B) are separated through a heat insulation sheet (50F), an output pole insulation seat (50E) on the end plate (50A) is used as an output position fixing position of the electric connecting piece (50C), and the binding surfaces of the single batteries (50B) are fixedly connected through glue (50H).

8. The power battery module structure of claim 1 or 3, wherein: an intergroup electric connection piece (60) is arranged between the band type modules (50).

9. The power battery module structure of claim 7, wherein: and a plurality of small holes are arranged on the electric connecting piece (50C) and used as fixing positions of the voltage and temperature sensing acquisition terminals.

10. The power battery module structure of claim 1 or 2, characterized in that: the insulating cover (70) covers the belt type module (50), and the insulating cover (70) is adhered to the upper surface of the belt type module (50) through double-sided adhesive tape or fixed on the upper surface of the belt type module through rivets.