CN217062414U

CN217062414U - Battery module convenient to replace

Info

Publication number: CN217062414U
Application number: CN202220856032.1U
Authority: CN
Inventors: 吴小波
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-07-26
Anticipated expiration: 2032-04-13

Abstract

The utility model relates to a lithium battery module technical field, concretely relates to convenient battery module of changing, including a plurality of electric cores and first PCB board and second PCB board, every electric core includes body, first link and second link, and the both sides at the body are installed respectively to first link and second link, all installs the busbar in first PCB board and the second PCB inboard, corresponds first link and second link department on the busbar and is equipped with the jack, jack and first link and second link phase-match. Every electric core of this application is connected through first link, second link and jack, consequently need not be welding electric core through the welded mode, thereby when one of them or a plurality of electric core need be changed, all electric cores on one side wherein need not all get through high temperature, only need pull out one side of electric core from one of them PCB board, then take out bad, change new can, be connected with the mode of inserting between PCB board and the electric core, it is very convenient to dismantle the installation.

Description

Battery module convenient to replace

Technical Field

The utility model relates to a lithium cell module technical field, concretely relates to convenient battery module of changing.

Background

Traditional cylinder lithium battery module mainly adopts the plastic support to assemble, specifically is: coating UV glue on the inner wall of a plastic support hole, inserting the cylindrical battery cell into the plastic support in sequence, curing by using a UV lamp, coating the AB glue on the position of a busbar arranged on the plastic support, fixing the busbar on the plastic support, and finally welding the battery cells in series and parallel connection by using aluminum wire welding to achieve module assembly.

According to the method, the front end and the rear end of each battery cell are connected with the busbar in a welding mode, so that when one or more battery cells break down and need to be replaced, the battery cells can be detached by using an auxiliary tool, and the installation is also complicated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses be connected through the welded form to between present electric core and busbar or the nickel piece for all inconvenient problems in the time of installation and dismantlement provide a convenient battery module of changing.

In order to realize the purpose of the utility model, the utility model provides a following technical scheme:

a battery module convenient to replace comprises a plurality of battery cells, a first PCB and a second PCB, wherein each battery cell comprises a body, a first connecting end and a second connecting end, the first connecting end and the second connecting end are respectively installed on two sides of the body, conductive strips are installed in the first PCB and the second PCB, jacks are arranged on the conductive strips corresponding to the first connecting end and the second connecting end, and the jacks are matched with the first connecting end and the second connecting end; and the first PCB and the second PCB are both provided with connecting holes.

Preferably, the battery cell is cylindrical, and the first connecting end and the second connecting end are cylindrical.

Preferably, the first connection end is a positive electrode, the second connection end is a negative electrode, and the diameter of the first connection end is larger than that of the second connection end. The size difference of two link prevents to install electric core backward when reinstalling.

Preferably, the cells are arranged in a matrix, and the positive and negative electrodes of the cells in adjacent rows are arranged oppositely. The electrodes of the cells in adjacent rows are opposite, so that series connection can be formed between the cells.

Preferably, adjacent conductive strips are connected through connecting strips, and two connecting strips on the same conductive strip are respectively positioned on two sides of the conductive strip. The equivalent is that the middle one of the conductive strips is connected with the two connected conductive strips in series.

Preferably, the first connecting end and the second connecting end are different in color, and the reverse installation can be further prevented by the color during installation.

Preferably, the height H of the first connection end is greater than the height D of the second connection end. The purpose of this is also to prevent reverse installation and to distinguish the positive and negative poles of the cell.

Preferably, the conductive strips are made of copper or nickel, and the conductive strips are adhered to the first PCB and the second PCB by soldering or solder paste.

Compared with the prior art, the beneficial effects of the utility model are that: this application is through setting up the busbar on first PCB board and second PCB board, set up the jack on the busbar, and be equipped with first link and second link respectively at the upper and lower both ends of every electric core, every electric core is through first link like this, the second link is connected with the jack, consequently, need not welding electric core through the welded mode, thereby when one of them or a plurality of electric cores need be changed, all electric cores on one side need not all be got through high temperature wherein, only need pull out one side of electric core from one of them PCB board, then take out bad, change new can, be connected with the mode of inserting between electric core and the PCB board, it is very convenient to dismantle the installation.

Description of the drawings:

fig. 1 is a schematic structural diagram of a battery module convenient to replace according to the present application;

FIG. 2 is a schematic diagram of a conductive strip structure;

fig. 3 is a schematic structural diagram of a battery cell.

The mark in the figure is: the battery comprises a battery core 1, a first PCB 2, a second PCB 3, a body 4, a first connecting end 5, a second connecting end 6, a conductive strip 7, an insertion hole 8, a connecting hole 9 and a connecting strip 10.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 3, the present application provides a battery module convenient to replace, which includes a plurality of battery cells 1, a first PCB 2 and a second PCB 3, wherein the first PCB 2 and the second PCB 3 are respectively located at two sides of the battery cells 1. Each battery cell 1 comprises a body 4, a first connecting end 5 and a second connecting end 6, wherein the first connecting end 5 and the second connecting end 6 are respectively installed on two sides of the body 4.

Conductive strips 7 are mounted in the first PCB 2 and the second PCB 3, jacks 8 are arranged on the conductive strips 7 corresponding to the first connecting end 5 and the second connecting end 6, and the jacks 8 are matched with the first connecting end 5 and the second connecting end 6. The jack 8 is matched with the first connecting end 5 and the second connecting end 6 in size, the first connecting end 5 and the second connecting end 6 cannot be in direct contact with the first PCB 2 and the second PCB 3 after being inserted into the jack, and the first connecting end 5 and the second connecting end 6 are slightly larger than the jack 8, so that good contact can be guaranteed. The insertion hole 8 is preferably not a through hole, corresponding to a hole provided with a recess in the conductive strip 7.

All be equipped with connecting hole 9 on first PCB board 2 and the second PCB board 3, the bolt passes through connecting hole 9 and connects first PCB board 2 and second PCB board 3. Adjacent conductive strips 7 are connected through connecting strips 10, and two connecting strips 10 on the same conductive strip 7 are respectively located on two sides of the conductive strip 7, so that the conductive strips 7 are connected in an end-to-end manner, and all the battery cells 1 are connected in series. In order to connect all the battery cells 1 in series, the positive and negative poles of the battery cells 1 in adjacent rows are opposite, which is equivalent to that the conductive strips 7 on the first PCB 2 flow into the conductive strips 7 on the second PCB 3 through the battery cells 1, then pass through the battery cells 1 in another row to the conductive strips 7 on the first PCB 2, and finally are connected with the electric equipment through the plug.

What disclose in this embodiment is that the battery module mainly aims at is the module of cylindrical electric core 1, first link 5, second link 6 are cylindrical, and certainly the electric core also can be the battery module of cuboid or square or other shapes. The battery cells 1 are arranged in a matrix, the number of the corresponding conductive strips 7 is as many as possible, the battery module provided in the embodiment is a 4 × 4 battery module, and the number of the battery cells can be set as required.

The first connection end 5 is a positive electrode, and the second connection end 6 is a negative electrode. In order to distinguish the positive electrode and the negative electrode of the battery cell 1 conveniently, the installation is reversed when the battery cell is placed and assembled, so that the diameter of the first connecting end 5 is larger than that of the second connecting end 6; or the first connecting end 5 and the second connecting end 6 are different in color; the height H of the first connecting end 5 is greater than the height D of the second connecting end 6.

The conductive strips 7 in this embodiment are attached to the PCB by soldering or SMT, and the conductive strips 7 may be copper or nickel. The insurance between single battery and the scheme that the power management system adopts current battery module, this patent no longer describes specifically.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A battery module convenient to replace comprises a plurality of battery cells (1), a first PCB (2) and a second PCB (3), and is characterized in that each battery cell (1) comprises a body (4), a first connecting end (5) and a second connecting end (6), the first connecting end (5) and the second connecting end (6) are respectively installed on two sides of the body (4), conductive strips (7) are installed in the first PCB (2) and the second PCB (3), jacks (8) are arranged on the conductive strips (7) corresponding to the first connecting end (5) and the second connecting end (6), and the jacks (8) are matched with the first connecting end (5) and the second connecting end (6); and the first PCB (2) and the second PCB (3) are both provided with connecting holes (9).

2. The battery module convenient to replace according to claim 1, wherein the battery core (1) is cylindrical, and the first connecting end (5) and the second connecting end (6) are cylindrical.

3. The battery module convenient to replace according to claim 2, wherein the first connecting end (5) is a positive electrode, the second connecting end (6) is a negative electrode, and the diameter of the first connecting end (5) is larger than that of the second connecting end (6).

4. The battery module convenient to replace according to claim 3, wherein the battery cells (1) are arranged in a matrix, and the positive and negative poles of the battery cells (1) in adjacent rows are opposite.

5. The battery module convenient for replacement as claimed in claim 4, wherein adjacent conductive strips (7) are connected by connecting strips (10), and two connecting strips (10) on the same conductive strip (7) are respectively located at two sides of the conductive strip (7).

6. The replacement-convenient battery module according to claim 1, wherein the first connection terminal (5) and the second connection terminal (6) are different in color.

7. The replacement-convenient battery module according to claim 1, wherein the height H of the first connection end (5) is greater than the height D of the second connection end (6).

8. The battery module facilitating replacement as claimed in claim 1, wherein the conductive bar (7) is produced from copper or nickel.