CN219873776U

CN219873776U - Novel low-cost standard battery pack for electric bicycle

Info

Publication number: CN219873776U
Application number: CN202321345316.5U
Authority: CN
Inventors: 韩方宇
Original assignee: Shanghai Electric Guoxuan New Energy Technology Suzhou Co ltd
Current assignee: Shanghai Electric Guoxuan New Energy Technology Suzhou Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-10-20
Anticipated expiration: 2033-05-30

Abstract

The utility model relates to the technical field of batteries, in particular to a novel standard battery pack for a low-cost electric bicycle. The battery module comprises a battery module, a shell used for wrapping the battery module, and a BMS bracket arranged in the shell and matched with the battery module for installation, wherein the battery module comprises a plurality of small-sized battery cells which are connected in series and wrapped by a heat shrinkage film, a large-sized battery cell formed by a plurality of small-sized battery cells wrapped by a large-sized heat shrinkage film, and a wire bundle integrated plate arranged at the side end of the large-sized battery cell. The utility model has the advantages that: according to the technical scheme, the battery module is assembled through the heat shrinkage film, so that the assembly efficiency is greatly improved, the battery module is changed to have no traditional battery cell support, the material cost is saved without the need of the battery cell support, and the production efficiency is also improved.

Description

Novel low-cost standard battery pack for electric bicycle

Technical Field

The utility model relates to the technical field of batteries, in particular to a novel standard battery pack for a low-cost electric bicycle.

Background

Along with the vigorous development of vehicle intelligent technology, on-vehicle intelligent sensor tends to the diversity, and the equipment of test and the diversity of executor product are more strict to the electric line installation requirement of test car, generally can appear because of the circuit virtual joint or the circuit overlength leads to the various test problems that the load increases and arouses, secondly need to hide the operation of powering on and powering off at the inside sensor of bumper in the test link, because the problem in space leads to in the short time unable realization, consequently need design a novel standard battery package for low-cost electric bicycle and solve above problem.

In the prior art, the application number is: CN202120367372.3, a fast-charging battery pack, has complex structure, high manufacturing cost and general performance, so a new low-cost standard battery pack for electric bicycles needs to be designed to solve the above problems.

Disclosure of Invention

The utility model aims to provide a novel low-cost standard battery pack for an electric bicycle, which overcomes the defects in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

novel low-cost standard battery package for electric bicycle, it includes the battery module, is used for wrapping up the casing of battery module, and arranges in the casing and the BMS support of cooperation battery module installation, its characterized in that: the battery module comprises a plurality of small-sized battery cells which are connected in series and wrapped by heat shrinkage films, a large-sized battery cell formed by the plurality of small-sized battery cells wrapped by the large-sized heat shrinkage films, and a wire bundle integrated plate arranged at the side end of the large-sized battery cell.

Preferably, a low-voltage interface is arranged at one end of the wire harness integrated board, and a high-voltage interface is arranged at the other end of the wire harness integrated board.

Preferably, the housing is assembled by an upper housing and a lower housing, and a space for mounting the power supply module and other spare parts is formed between the upper housing and the lower housing.

Preferably, a mounting hole is formed in the lower housing.

Preferably, a handle is also mounted on the housing.

Preferably, the BMS support is further provided with a plurality of lithium battery protection board mounting holes, and the BMS support is further provided with a software protection board and a linear protection board.

The beneficial effects of the utility model are as follows: according to the technical scheme, the battery module is assembled through the heat shrinkage film, so that the assembly efficiency is greatly improved, the battery module is changed to have no traditional battery cell support, the material cost is saved without the need of the battery cell support, and the production efficiency is also improved.

Drawings

FIG. 1 is an exploded view of a standard battery pack for a new low cost electric bicycle of the present utility model;

fig. 2 is a top view of a BMS support of a standard battery pack for a novel low-cost electric bicycle according to the present utility model;

FIG. 3 is a schematic diagram of a battery module of a standard battery pack for a novel low-cost electric bicycle;

in the figure: 1. a battery module; 2. a housing; 3. BMS rack; 21. an upper housing; 22. a lower housing; 11. a battery cell; 12. a heat shrinkage film; 13. a small-sized battery cell; 14. large heat-shrinkable film; 15. a large-sized cell; 16. a thread bundle integrated board; 17. a low voltage interface; 18. a high-voltage interface; 31. a lithium battery protection plate mounting hole; 4. a software protection board; 5. a wire-through protection board; 6. a handle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1 to 3, a new low-cost standard battery pack for an electric bicycle includes a battery module 1, a housing 2 for wrapping the battery module 1, and a BMS bracket 3 disposed in the housing 2 and mounted in cooperation with the battery module;

the shell 2 is formed by assembling an upper shell 21 and a lower shell 22, a space for installing the power supply module 1 and other parts is formed between the upper shell 21 and the lower shell 22, the space can be matched with the installation of the plug connector and the installation of the wire harness, the shell material is PC+ABS, the V0 level requirement is met, and the whole structure is reliable and the performance is excellent.

The lower shell 22 is internally provided with a mounting hole, and a screw is used for locking the battery pack; and a plug connector is reserved on the side surface of the lower shell for realizing high-low voltage output.

The battery module 1 comprises a plurality of small-sized battery cells 13 which are connected in series and wrapped by a plurality of heat-shrinkable films 12, a large-sized battery cell 15 formed by a plurality of small-sized battery cells 13 wrapped by a large-sized heat-shrinkable film 14, a wire harness integrated board 16 arranged at the side end of the large-sized battery cell 15, a low-voltage interface 17 arranged at one end of the wire harness integrated board 16 and a high-voltage interface 18 arranged at the other end of the wire harness integrated board.

The concrete 5 sets of electric cores 11 that adopt overlap from top to bottom and set up, and adopt 22Ah electric cores, 5 sets of electric cores 11 wrap up into a set of small-size electric cores through the pyrocondensation membrane, through passing through large-size pyrocondensation membrane 14 with 3 small-size electric cores, pyrocondensation becomes a large-size electric core 15, module top welding line beam integrated plate 16, the baking of pyrocondensation membrane all is realized in the baker in the large-size electric core 15, the baker is located the flow line, accomplish the baking process and only need 1 second's time, greatly improved packaging efficiency. And the battery module is not provided with the traditional battery cell bracket, the material cost is saved without the battery cell bracket, the production efficiency is improved,

still offered a plurality of lithium cell protection shield mounting holes 31 on the BMS support 3, can select different protection shield according to the different demands of customer, provided the product commonality, practiced thrift the research and development cost still install software protection shield 4 and a lead to protection shield 5 on the BMS support 3.

A handle 6 is also mounted on the housing 2 for easy removal, installation and removal.

The utility model has the advantages that the battery module is assembled by the heat shrinkage film, the assembly efficiency is greatly improved, the battery module is not provided with the traditional battery cell bracket, the material cost is saved without the battery cell bracket, and the production efficiency is also improved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. Novel low-cost standard battery package for electric bicycle, it includes the battery module, is used for wrapping up the casing of battery module, and arranges in the casing and the BMS support of cooperation battery module installation, its characterized in that: the battery module comprises a plurality of small-sized battery cells which are connected in series and wrapped by heat shrinkage films, a large-sized battery cell formed by the plurality of small-sized battery cells wrapped by the large-sized heat shrinkage films, and a wire bundle integrated plate arranged at the side end of the large-sized battery cell.

2. A new low cost standard battery pack for electric bicycles as claimed in claim 1, wherein: one end of the wire harness integrated board is provided with a low-voltage interface, and the other end of the wire harness integrated board is provided with a high-voltage interface.

3. A new low cost standard battery pack for electric bicycles as claimed in claim 1, wherein: the shell is formed by assembling an upper shell and a lower shell, and a space for installing a battery module and other spare parts is formed between the upper shell and the lower shell.

4. A new low cost standard battery pack for electric bicycles as claimed in claim 3, wherein: and a mounting hole is formed in the lower shell.

5. A new low cost standard battery pack for electric bicycles as claimed in claim 3, wherein: a handle is also mounted on the housing.

6. A new low cost standard battery pack for electric bicycles as claimed in claim 1, wherein: a plurality of lithium battery protection board mounting holes are further formed in the BMS support, and a software protection board and a wire harness protection board are further mounted on the BMS support.