CN221747446U - A lithium battery pack - Google Patents

Abstract

The utility model discloses a lithium battery pack, including: a lower shell, an upper cover, a positive terminal and a negative terminal, wherein a battery module is arranged in the lower shell, the positive terminal is electrically connected to the positive electrode of the battery module, the negative terminal is electrically connected to the negative electrode of the battery module, the upper cover is buckled on the lower shell, the positive terminal and the negative terminal are square structures, and the upper cover is provided with a positive terminal mounting position for mounting the positive terminal and a negative terminal mounting position for mounting the negative terminal. Compared with the prior art, the utility model sets the positive terminal and the negative terminal in a square shape, thereby increasing the contact area and meeting the user's growing demand for current.

Description

A lithium battery pack

Technical Field

The utility model relates to the technical field of new energy storage batteries, in particular to a lithium battery pack.

Background Art

The existing starting lithium iron phosphate batteries basically use lead-acid battery shells and are manufactured using traditional structural processes. The positive and negative pole tabs are relatively thin. Therefore, under the premise of the same voltage and capacity, when lithium batteries are used and installed in lead-acid shells, there will be more or less excess space. At this time, EVA needs to be filled. In addition, the relatively thin positive and negative pole tabs are also difficult to meet customers' growing demand for current.

Utility Model Content

The main purpose of the utility model is to provide a lithium battery pack, aiming to meet the increasing demand of users for current.

To achieve the above-mentioned purpose, the utility model proposes a lithium battery pack, comprising: a lower shell, an upper cover, a positive terminal and a negative terminal, a battery module is arranged in the lower shell, the positive terminal is electrically connected to the positive pole of the battery module, the negative terminal is electrically connected to the negative pole of the battery module, the upper cover is buckled on the lower shell, the positive terminal and the negative terminal are square structures, and the upper cover is provided with a positive terminal mounting position for mounting the positive terminal, and a negative terminal mounting position for mounting the negative terminal.

A further technical solution of the utility model is that the top of the positive terminal, the top of the negative terminal and the top of the upper cover are flush.

A further technical solution of the utility model is that the positive terminal, the negative terminal and the upper cover are integrally formed.

A further technical solution of the present invention is that the positive terminal and the negative terminal are made of aluminum alloy.

A further technical solution of the utility model is that a protection plate is arranged inside the upper cover.

A further technical solution of the utility model is that a handle buckle position is arranged on the upper cover.

A further technical solution of the utility model is that a plurality of vertical stripes are arranged on the lower shell.

A further technical solution of the utility model is that the bottom of the upper cover is concavely formed with an inlay male stop, and the inner wall of the lower shell is provided with a female stop corresponding to the inlay male stop.

The beneficial effects of the lithium battery pack of the utility model are:

The utility model, through the above technical scheme, includes: a lower shell, an upper cover, a positive terminal and a negative terminal, a battery module is arranged in the lower shell, the positive terminal is electrically connected to the positive pole of the battery module, the negative terminal is electrically connected to the negative pole of the battery module, the upper cover is buckled on the lower shell, the positive terminal and the negative terminal are square structures, a positive terminal mounting position for mounting the positive terminal and a negative terminal mounting position for mounting the negative terminal are provided on the upper cover, compared with the prior art, the utility model sets the positive terminal and the negative terminal to be square, increases the contact area, and meets the user's growing demand for current.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

FIG1 is a schematic diagram of the overall structure of a preferred embodiment of the lithium battery pack of the utility model;

FIG. 2 is a schematic diagram of the exploded structure of a preferred embodiment of the lithium battery pack of the present invention.

Description of Figure Numbers:

Label name Label name 1 Lower shell 4 Negative terminal 2 Upper cover 5 Handle buckle 3 Positive terminal

The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and/or" appearing in the full text includes three parallel schemes. Taking "A and/or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

Please refer to Figures 1 to 2. The utility model provides a lithium battery pack. The utility model adopts a non-traditional assembly process for production. The internal space is compressed to the extreme, the size of each part is just right, and no other auxiliary materials are needed for filling.

A preferred embodiment of the utility model comprises: a lower shell 1, an upper cover 2, a positive terminal 3 and a negative terminal 4, a battery module is arranged in the lower shell 1, the positive terminal 3 is electrically connected to the positive pole of the battery module, the negative terminal 4 is electrically connected to the negative pole of the battery module, the upper cover 2 is buckled on the lower shell 1, the positive terminal 3 and the negative terminal 4 are square structures, and a positive terminal 3 mounting position for mounting the positive terminal 3 and a negative terminal 4 mounting position for mounting the negative terminal 4 are provided on the upper cover 2.

In this embodiment, the positive terminal 3 and the negative terminal 4 may be made of aluminum alloy, or a metal copper shunt structure may be used inside the main body of the positive terminal 3 and the negative terminal 4, so that the positive terminal 3 and the negative terminal 4 can withstand a larger current. In specific implementation, copper plating with bronze or metal surface plating with gold may be used to enhance the aesthetics of the positive terminal 3 and the negative terminal 4, and make them look more elegant.

In addition, in this embodiment, the positive terminal 3 and the negative terminal 4 are configured as a square structure, which is an upgrade of the previous terminals, greatly increasing the contact area and increasing the current, and can meet the user's needs for harsh environments.

Furthermore, in this embodiment, the top of the positive terminal 3 and the top of the negative terminal 4 are flush with the top of the upper cover 2 .

In this embodiment, the top of the positive terminal 3 and the top of the negative terminal 4 are flush with the top of the upper cover 2, and the positive terminal 3 and the negative terminal 4 are electrically connected to the positive and negative poles of the battery module in the lower shell 1, ensuring flexible diversion of multiple lines to meet the user's high current and high rate usage requirements as much as possible.

Furthermore, in this embodiment, the positive terminal 3, the negative terminal 4 and the upper cover 2 are integrally formed. A protective plate is provided inside the upper cover 2.

In this embodiment, the protection plate is arranged inside the upper cover 2, so that it can be well separated from the battery module, further improving the safety of the battery pack. In this embodiment, the positive terminal 3, the negative terminal 4 and the upper cover 2 are integrally formed, which not only saves the installation process, but also is firm and reliable.

In this embodiment, a handle buckle position 5 is provided on the upper cover 2 .

The handle buckle 5 is detachably arranged on the upper cover 2 and can be installed or removed at any time for flexible use.

In this embodiment, a plurality of vertical stripes are provided on the lower shell 1 .

This embodiment, by providing the plurality of vertical stripes on the lower shell 1, not only improves the toughness of the lower shell 1, but also integrates the sense of beauty and strength, while also setting off the beauty of metal and improving the aesthetics.

Furthermore, in this embodiment, the bottom of the upper cover 2 is concavely formed with an inlay male stop, and the inner wall of the lower shell 1 is provided with a female stop corresponding to the inlay male stop.

In this embodiment, the positive terminal 3 and the negative terminal 4 are welded to the upper cover 2 as one body, and are integrated with the protective plate and assembled inside the upper cover 2, which is equivalent to a module assembly. Only the total positive electrode and the total negative electrode are reserved to connect the positive terminal 3 and the negative terminal 4, and then the module is placed on the support bone position inside the lower shell 1, ensuring that there is a gap between the module and the equalizing plate in the lower shell 1, and they cannot be close together, and then the upper cover 2 is fixed with glue, and the stop between the lower shell 1 and the upper cover 2 is flat and corresponding, and finally the upper cover 2 is combined and fixed with the lower shell 1. This installation method is easy to install, waterproof, and can prevent arbitrary disassembly.

The beneficial effects of the lithium battery pack of the utility model are:

The utility model, through the above technical scheme, includes: a lower shell, an upper cover, a positive terminal and a negative terminal, a battery module is arranged in the lower shell, the positive terminal is electrically connected to the positive pole of the battery module, the negative terminal is electrically connected to the negative pole of the battery module, the upper cover is buckled on the lower shell, the positive terminal and the negative terminal are square structures, a positive terminal mounting position for mounting the positive terminal and a negative terminal mounting position for mounting the negative terminal are provided on the upper cover, compared with the prior art, the utility model sets the positive terminal and the negative terminal to be square, increases the contact area, and meets the user's growing demand for current.

The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly/indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims (8)

1. A lithium battery pack, comprising: inferior valve, upper cover, anodal terminal and negative pole terminal, be equipped with the battery module in the inferior valve, anodal terminal with battery module's anodal electric connection, negative pole terminal with battery module's negative pole electric connection, the upper cover is detained and is located on the inferior valve, anodal terminal with negative pole terminal is square structure, be equipped with on the upper cover and be used for the installation anodal terminal installation position, and be used for the installation negative pole terminal's negative pole terminal installation position.

2. The lithium battery pack of claim 1, wherein the top of the positive terminal, the top of the negative terminal are flush with the top of the upper cover.

3. The lithium battery pack of claim 1, wherein the positive terminal, the negative terminal, and the upper cover are integrally formed.

4. The lithium battery pack according to claim 1, wherein the positive electrode terminal and the negative electrode terminal are made of an aluminum alloy material.

5. The lithium battery pack according to claim 1, wherein a protection plate is provided in the upper cover.

6. The lithium battery pack according to claim 5, wherein the upper cover is provided with a handle fastening position.

7. The lithium battery pack according to claim 1, wherein the lower case is provided with a plurality of vertical stripes.

8. The lithium battery pack according to claim 1, wherein the bottom of the upper cover is concavely formed with an insert male spigot, and the inner wall of the lower case is provided with a female spigot corresponding to the insert male spigot.