CN220086228U

CN220086228U - Lithium battery pack

Info

Publication number: CN220086228U
Application number: CN202321651055.XU
Authority: CN
Inventors: 杨书廷; 孙志贤; 李琦; 马栋樑
Original assignee: Henan Power Battery Innovation Center Co ltd; Battery Research Institute Of Henan Co ltd
Current assignee: Henan Power Battery Innovation Center Co ltd; Battery Research Institute Of Henan Co ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2023-11-24
Anticipated expiration: 2033-06-27

Abstract

The utility model discloses a lithium battery pack, and relates to the technical field of batteries. The lithium battery cell battery pack comprises an outer frame, lithium battery cells, a top polar plate and a combined block, wherein a plurality of transverse equidistant baffles are fixed on the inner wall of the outer frame, baffle plates are fixed between adjacent baffles and the inner wall of the outer frame at equal intervals, the lithium battery cells are arranged between adjacent baffle plates, the top polar plate is fixed on the top of the outer frame, connecting blocks are fixed at four corners of the top polar plate, and the combined block is arranged at four corners of the outer side of the outer frame. The utility model solves the problems that the connection of batteries is easy to cause due to the impact of the lithium battery pack and the installation is more troublesome when a plurality of battery packs are used by arranging the outer frame, the lithium battery monomer, the top polar plate and the combined block, and has the advantages that: after being impacted, the electric connection of the battery monomers is not affected, and the installation is more convenient when a plurality of battery packs are used.

Description

Lithium battery pack

Technical Field

The utility model belongs to the technical field of batteries, and particularly relates to a lithium battery pack.

Background

Lithium batteries refer to batteries that contain lithium (including metallic lithium, lithium alloys, and lithium ions, lithium polymers) in an electrochemical system. Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium metal batteries are generally non-rechargeable and contain lithium in the metallic state. The lithium ion battery does not contain metallic lithium and can be charged, the lithium battery pack is formed by combining a plurality of lithium batteries together, and the device for expanding the electricity storage capacity is formed, but the following defects still exist in actual use:

the lithium battery pack generally comprises a plurality of battery cells which are required to be combined together and sealed in a shell to ensure the safety during use, but the battery cells are required to be welded on corresponding electrodes through welding during use, and when the battery pack is impacted during use, the welding positions of the batteries are easy to be damaged, and the battery pack is easy to break down during use;

the capacity of a single lithium battery pack is not unlimited, and in order to save space for use, the capacity is very limited, and thus a device using the lithium battery pack generally requires the use of a plurality of battery packs, which are cumbersome to install.

Disclosure of Invention

The utility model aims to provide a lithium battery pack, which solves the problems that the connection of batteries is easy to cause due to the impact of the lithium battery pack and the installation is more troublesome when a plurality of battery packs are used by arranging an outer frame, lithium battery monomers, a top polar plate and a combined block.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a lithium battery pack, which comprises an outer frame, lithium battery monomers, a top polar plate and a combined block, wherein a plurality of transverse and equidistant baffle plates are fixed on the inner wall of the outer frame, baffle plates are fixed between the adjacent baffle plates and the inner wall of the outer frame together at equal intervals, the lithium battery monomers are arranged between the adjacent baffle plates, the top polar plate is fixed on the top of the outer frame, connecting blocks are fixed at four corners of the top polar plate, and the combined block is arranged at four corners of the outer side of the outer frame.

Further, the bottom of frame is fixed with the bottom polar plate, four corners of frame outside upper portion are fixed with the installation piece with the connecting block position correspondence, the one side that the combined block is close to the frame is fixed with the installation piece, and the frame passes through the bottom polar plate and seals its bottom.

Further, the lithium battery monomer below is provided with and holds the board, it is provided with the pressure spring to hold the bottom of board, the bottom mounting of pressure spring is at the top of bottom polar plate, and the lithium battery monomer is through accepting the pressure spring of board and its below, with bottom polar plate electric connection to make it after the equipment in the frame through the pressure spring, can connect the fastening.

Further, wires are fixed on one side of the top polar plate and one side of the bottom polar plate, the wires fixed on the top polar plate and the bottom polar plate are positioned on the same side, and the top polar plate and the bottom polar plate are electrically connected with corresponding circuits through the wires.

Further, the connecting block is internally penetrated and inserted with a screw, the bottom end of the screw is in threaded connection with the mounting block, the connecting block is inserted into the screw through the screw, and then screwed into the mounting block, and the top polar plate is connected with the outer frame after the connecting block is screwed.

Further, the jack has been offered in the central authorities of block top link up, the lower part of jack is fixed with fixed cylinder, fixed cylinder's week side lower part is fixed with the pressure disk, the distance between pressure disk bottom to fixed cylinder bottom equals the distance between fixed cylinder top to the block top, and the block passes through the jack and connects fixed cylinder.

The utility model has the following beneficial effects:

according to the utility model, the problem that the battery connection is easy to cause due to the fact that the lithium battery pack is impacted is solved by arranging the outer frame, the lithium battery cell, the top polar plate and the combined block, the pressure spring is compressed during operation, part of impact can be absorbed by the pressure spring when the outer frame is impacted, and after the whole combination of the structures connected by the outer frame is good, the compression between the top of the lithium battery cell and the top of the top polar plate is ensured, so that the battery connection is not easy to cause due to the fact that the lithium battery pack is impacted, and the use of the lithium battery pack is more stable.

According to the utility model, the problem of troublesome installation when a plurality of battery packs are used is solved by arranging the outer frames, the lithium battery cells, the top polar plates and the combined blocks, when the two outer frames are required to be combined together, firstly, the long bolts (not shown in the figure) are inserted into the fixed cylinders and extend out of the combined blocks, the outer frames are placed on a workbench surface, the other outer frames are taken down, the bottom ends of the fixed cylinders on the outer sides of the outer frames are inserted into the insertion holes on the combined blocks, the long bolts are inserted into the fixed cylinders and extend out of the combined blocks, then, the nuts (not shown in the figure) are screwed onto the long bolts, and after the two outer frames are screwed, the two outer frames are combined together, so that the plurality of battery packs can be installed and limited together, and the installation convenience when the plurality of battery packs are used is improved.

Drawings

FIG. 1 is a perspective view of a split structure of the present utility model;

FIG. 2 is a perspective view of the outer frame structure of the present utility model;

fig. 3 is a perspective view of a structure of a lithium battery cell according to the present utility model;

FIG. 4 is a perspective view of the top plate structure of the present utility model;

fig. 5 is a perspective view of the combined block structure of the present utility model.

Reference numerals:

100. an outer frame; 101. a bottom plate; 102. a baffle; 103. a partition plate; 104. a mounting block; 105. a screw; 200. a lithium battery cell; 201. a receiving plate; 202. a pressure spring; 300. a top plate; 301. a connecting block; 302. a wire; 400. a combination block; 401. a jack; 402. a fixed cylinder; 403. and (3) pressing a plate.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-5, the present utility model is a lithium battery pack, including an outer frame 100, lithium battery cells 200, top electrode plates 300 and a combination block 400, wherein a plurality of transverse and equidistant baffles 102 are fixed on the inner wall of the outer frame 100, the outer frame 100 encloses the lithium battery cells 200 therein, baffles 103 are fixed between adjacent baffles 102 and the inner wall of the outer frame 100 together at equal intervals through the baffles 102, the inner space of the outer frame 100 is partitioned into a plurality of grids by the baffles 103 and the baffles 102, so as to limit the corresponding lithium battery cells 200 therein, the lithium battery cells 200 are arranged between adjacent baffles 103, the lithium battery cells 200 provide a charging and discharging function, the top electrode plates 300 are fixed on the top of the outer frame 100, the top electrode plates 300 are in close contact with the tops of the lithium battery cells 200 during operation, one electrode of the lithium battery cells 200 can be electrically connected with corresponding circuits, connecting blocks 301 are fixed at four corners of the top electrode plates 300, during operation, the positions of the connection of the top electrode plates 300 and the outer frame 100 are provided, and the combination blocks 400 are connected at the outer sides of the outer frame 100 through the connecting blocks 301, so that the combination of the two outer frame 400 can be combined together.

As shown in fig. 1 and 2, a bottom plate 101 is fixed at the bottom of the outer frame 100, one pole of the bottom plate 101, far from the top end, of the lithium battery cell 200 can be electrically connected with a corresponding circuit, mounting blocks 104 are correspondingly fixed at four corners of the outer upper part of the outer frame 100 and the positions of the connecting blocks 301, the mounting blocks 104 provide positions for screw 105 to be connected in a threaded manner, and one side, close to the outer frame 100, of the combined block 400 is fixed with the mounting blocks 104.

As shown in fig. 1, 2 and 3, a receiving plate 201 is disposed below the lithium battery unit 200, the receiving plate 201 is used for supporting the lithium battery unit 200 in the outer frame 100, a pressure spring 202 is disposed at the bottom of the receiving plate 201, the pressure spring 202 supports the receiving plate 201 and the lithium battery unit 200 at the top of the bottom polar plate 101 during operation, the pressure spring 202 is compressed during operation, when the outer frame 100 is impacted, part of impact can be absorbed by the pressure spring 202, and after the whole structure connected with the outer frame 100 is combined, compression between the top of the lithium battery unit 200 and the top of the top polar plate 300 is ensured, and the bottom end of the pressure spring 202 is fixed at the top of the bottom polar plate 101.

As shown in fig. 1 and 4, wires 302 are fixed on one sides of the top plate 300 and the bottom plate 101, and the wires 302 fixed on the top plate 300 and the bottom plate 101 are located on the same side and fixed with corresponding external power transmission structures through the wires 302, so that the top plate 300 and the bottom plate 101 are electrically connected with corresponding power utilization and charging structures.

As shown in fig. 1, 2 and 4, the connecting block 301 is internally inserted with a screw 105, the bottom end of the screw 105 is screwed in the mounting block 104, and after the top polar plate 300 is aligned with the top of the outer frame 100, the screw 105 is inserted into the connecting block 301 and screwed into the mounting block 104, so that the outer frame 100 and the top polar plate 300 are combined together.

As shown in fig. 1 and 5, a jack 401 is formed in the center of the top of the combined block 400, the combined block 400 is movably connected with the bottom end of the fixed cylinder 402 outside the upper outer frame 100 through the jack 401, the fixed cylinder 402 is fixed at the lower part of the jack 401, when the two outer frames 100 are assembled together, the fixed cylinder 402 is supported, a pressure plate 403 is fixed at the lower part of the periphery of the fixed cylinder 402, and after the bottom end of the fixed cylinder 402 is inserted into the jack 401 on the combined block 400 below the fixed cylinder 402 through the pressure plate 403, a certain support is provided for the fixed cylinder 402, and the distance from the bottom of the pressure plate 403 to the bottom end of the fixed cylinder 402 is equal to the distance from the top end of the fixed cylinder 402 to the top of the combined block 400.

The specific working principle of the utility model is as follows: when the lithium battery cell 200 is in operation, firstly, one outer frame 100 is put on a corresponding working table, then the lithium battery cell 200 is put in a corresponding grid separated by the baffle plate 102 and the baffle plate 103 in the outer frame 100, after the bottom of the lithium battery cell 200 contacts the bearing plate 201, the pressure spring 202 with a certain height is pressed down, the upper part of the lithium battery cell 200 stretches out of the outer frame 100 through the support of the pressure spring 202, then one top polar plate 300 is taken, the top polar plate 300 is aligned with the top of the outer frame 100, the connecting block 301 is aligned with the mounting block 104, the screw 105 is inserted into the connecting block 301 and screwed down into the mounting block 104, the top polar plate 300 is connected to the top of the outer frame 100, in the process, the top polar plate 300 gradually presses down the lithium battery cell 200, finally, the top of the lithium battery cell 200 can be tightly contacted with the top polar plate 300, when the two outer frames 100 are required to be combined together, firstly, a long bolt (not drawn in the figure) is inserted into the fixing cylinder 402 and stretches out of the combining block 400, the outer frame 100 is placed on the working table, the other outer frame 100 is taken down, the other outer frame 100 is screwed down, the bolt is inserted into the fixing cylinder 400 is screwed into the combining cylinder 400, and the combining block is not drawn into the combining block 402, and the two outer frames are combined together, and the two frames are screwed into the cylinder 402, and the frame is screwed up.

The foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present utility model.

Claims

1. The utility model provides a lithium battery group, includes frame (100), lithium cell (200), top polar plate (300) and block (400), its characterized in that: be fixed with a plurality of horizontal and equidistant baffle (102) on frame (100) inner wall, adjacent be fixed with baffle (103) jointly between baffle (102) and the inner wall of frame (100) equidistance, adjacent be provided with lithium cell monomer (200) between baffle (103), the top of frame (100) is fixed with top polar plate (300), four corners of top polar plate (300) all are fixed with connecting block (301), four corners in the outside of frame (100) all are provided with composite block (400).

2. A lithium battery pack according to claim 1, wherein: bottom polar plates (101) are fixed at the bottom of the outer frame (100), mounting blocks (104) are fixed at four corners of the outer side upper portion of the outer frame (100) corresponding to the positions of the connecting blocks (301), and one side, close to the outer frame (100), of the combined block (400) is fixed with the mounting blocks (104).

3. A lithium battery pack according to claim 2, wherein: the lithium battery is characterized in that a bearing plate (201) is arranged below the lithium battery unit (200), a pressure spring (202) is arranged at the bottom of the bearing plate (201), and the bottom end of the pressure spring (202) is fixed at the top of the bottom polar plate (101).

4. A lithium battery pack according to claim 2, wherein: and wires (302) are fixed on one side of the top polar plate (300) and one side of the bottom polar plate (101), and the wires (302) fixed on the top polar plate (300) and the bottom polar plate (101) are positioned on the same side.

5. A lithium battery pack according to claim 2, wherein: the connecting block (301) is internally penetrated and inserted with a screw (105), and the bottom end of the screw (105) is in threaded connection with the mounting block (104).

6. A lithium battery pack according to claim 1, wherein: the utility model discloses a combination block, including fixed barrel (400) and fixed barrel, fixed barrel (402) is fixed with fixed barrel (402) in the middle of combined block (400) top, fixed barrel (402) lower part is fixed with pressure disk (403) in the week side, the distance between pressure disk (403) bottom to fixed barrel (402) bottom equals the distance between fixed barrel (402) top to combined block (400) top.