CN215768924U

CN215768924U - Lithium battery discharge test equipment

Info

Publication number: CN215768924U
Application number: CN202121718838.6U
Authority: CN
Inventors: 赵同同; 徐卫星; 刘亚杰
Original assignee: Hebei Xinli New Energy Technology Co ltd
Current assignee: Hebei Xinli New Energy Technology Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-02-08
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a lithium battery discharge test device which comprises a box body, a display, a switch, a connecting terminal, a cooling fan, a resistor, a support and universal wheels, wherein the display is arranged on the front side of the box body; the sampling port of the display, the resistor, the switch and the wiring terminal are connected through wires. The utility model has simple structure, can realize the test of the multi-discharge power of the battery to be tested by combining the series and the parallel of the resistors so as to detect the state of the battery, and solves the problems of battery discharge management and storage with low cost.

Description

Lithium battery discharge test equipment

Technical Field

The utility model relates to the technical field of batteries, in particular to a lithium battery discharge testing device.

Background

The lithium ion battery has the advantages of high energy, high working voltage, wide working temperature range, small volume, light weight, long storage life and the like, and is increasingly paid attention to the industry as a novel secondary power supply with superior performance, so that the lithium ion power battery has wide future market prospect.

However, lithium ion batteries have severe requirements in terms of storage, and in addition to the severe environmental temperature requirements, the lithium ion batteries need to be maintained within a preset storage voltage interval, and need to be charged and discharged once every 3 months. If the storage voltage of the lithium ion battery is not suitable, over-discharge can cause the internal resistance of the battery to rise in the process of over-low voltage storage, the reversibility of the positive and negative active materials is damaged, the capacity of the battery is obviously reduced, and the gradual decomposition and aging of the electrolyte of the battery can be caused due to over-high voltage, so that the battery is damaged in advance. Currently, most of the discharge devices of lithium batteries perform discharge operations (such as 0-30V or 30-100V) for lithium batteries of a certain voltage range, and the discharge power is generally small, such as increasing the discharge power, and the cost is increased more. Therefore, how to provide a lithium battery discharge test device which is suitable for a larger discharge power interval becomes a difficult problem which needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lithium battery discharge testing device, which solves the problems that the traditional lithium battery discharge testing device is low in power and high in cost of increasing discharge power.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model discloses a lithium battery discharge test device which comprises a box body, a display, a switch, a connecting terminal, a heat radiation fan, a resistor, supports and universal wheels, wherein the display is arranged on the front side of the box body; the sampling port of the display, the resistor, the switch and the wiring terminal are connected through wires.

Furthermore, the resistors are six in number, every two resistors are arranged in a three-layer mode, and two wiring ends of each resistor are connected with the wiring terminals.

Furthermore, the wiring terminals are distributed by 2 × 7, two wiring terminals in the first row are respectively connected with the current sampling port of the display, two wiring terminals in each of the other rows are respectively connected with two ends of the resistor, one end of the voltage sampling port of the display is connected with one end of the current sampling port of the display, and the other end of the voltage sampling port of the display is connected with the last wiring terminal in the last row; and data obtained by sampling the current sampling port and the voltage sampling port are transmitted to the display screen.

Further, the switch is arranged on a trunk of the test circuit.

Further, the front face and the top face of the box body are provided with heat dissipation holes, door leaves which can be opened in a rotating mode are arranged on the two sides of the box body, the door leaves are hinged to the box body, and the heat dissipation fans are regularly arranged and fixed to the door leaves through screws.

Compared with the prior art, the utility model has the beneficial technical effects that:

the lithium battery discharge test equipment comprises a box body, a display, a switch, a wiring terminal, a cooling fan, resistors, a support and universal wheels, wherein six resistors are arranged on the support, and experiments of different discharge powers of lithium batteries are realized by connecting the resistors in series and in parallel; the side surface of the box body is provided with a heat radiation fan which can radiate heat to the resistor; the universal wheels are arranged at the lower part of the bracket, so that the movement is convenient. The utility model has simple structure, can realize the test of the multi-discharge power of the battery to be tested by combining the series and the parallel of the resistors so as to detect the state of the battery, and solves the problems of battery discharge management and storage with low cost.

Drawings

The utility model is further illustrated in the following description with reference to the drawings.

FIG. 1 is a cross-sectional view of a lithium battery discharge testing apparatus according to the present invention;

FIG. 2 is an isometric view of the present invention;

FIG. 3 is a schematic circuit diagram of the present invention;

description of reference numerals: 1. a box body; 2. a display; 201. a display screen; 202. a current sampling port; 203 a voltage sampling port; 3. a switch; 4. a wiring terminal; 5. a heat radiation fan; 6. a resistance; 7. a support; 8. a universal wheel; 9. a lithium battery.

Detailed Description

As shown in fig. 1 and 2, a lithium battery discharge testing device includes a box 1, a display 2, a switch 3, a connection terminal 4, a heat dissipation fan 5, a resistor 6, a support 7, and a universal wheel 8, wherein the display 2 is disposed on the front surface of the box 1, the switch 3 and the connection terminal 4 are disposed on the back surface of the box 1, the heat dissipation fan 5 is disposed on two sides of the box 1, the support 7 is welded inside the box 1, the universal wheel 8 is disposed at the bottom of the support 7, and the resistor 6 is connected to the support 7 through a bolt; the sampling port of the display 2, the resistor 6, the switch 3 and the wiring terminal 4 are connected through wires.

The resistor 6 is six in number, every two resistors are arranged in a three-layer mode, and two wiring ends of the resistor 6 are connected with the wiring terminal 4.

As shown in fig. 3, the connection terminals 4 are distributed by 2 × 7, two connection terminals 4 in a first row are respectively connected to the current sampling port 202 of the display 2, two connection terminals 4 in each remaining row are respectively connected to two ends of the resistor 6, one end of the voltage sampling port 203 of the display 2 is connected to one end of the current sampling port 202 of the display 2, and the other end of the voltage sampling port 203 of the display 2 is connected to the last connection terminal 4 in a last row; the data sampled by the current sampling port 202 and the voltage sampling port 203 is transmitted to the display screen 201.

The switch 3 is arranged on the trunk of the test circuit.

As shown in fig. 2, heat dissipation holes are formed in the front face and the top face of the box body 1, door leaves which can be opened in a rotating mode are arranged on two sides of the box body 1, the door leaves are hinged to the box body 1, and the heat dissipation fans 5 are regularly arranged and fixed on the door leaves through screws.

The action process of the utility model is as follows:

firstly, the positive and negative electrodes of the lithium battery 9 are connected with the first connecting terminal 4 and the last connecting terminal 4, then the series-parallel connection operation is carried out on the resistor 6 by testing the power of the lithium battery 9 according to the requirement, and then the switch 3 is opened. The test circuit is powered on, the heat dissipation fan 5 dissipates heat to the resistor 6 in the box body 1, and the current sampling port 202 and the voltage sampling port 203 upload sampled data to the display screen 201.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. The utility model provides a lithium cell test equipment that discharges which characterized in that: the LED lamp box comprises a box body (1), a display (2), a switch (3), a wiring terminal (4), a cooling fan (5), a resistor (6), a support (7) and universal wheels (8), wherein the display (2) is arranged on the front surface of the box body (1), the switch (3) and the wiring terminal (4) are arranged on the back surface of the box body (1), the cooling fan (5) is arranged on two sides of the box body (1), the support (7) is welded in the box body (1), the universal wheels (8) are arranged at the bottom of the support (7), and the resistor (6) is connected to the support (7) through bolts; the sampling port of the display (2), the resistor (6), the switch (3) and the wiring terminal (4) are connected through wires.

2. The lithium battery discharge testing device of claim 1, wherein: the resistor (6) is six in number, every two resistors are arranged in a three-layer mode, and the two wiring ends of the resistor (6) are connected with the wiring terminal (4).

3. The lithium battery discharge testing device of claim 2, wherein: the wiring terminals (4) are distributed in a 2 x 7 mode, two wiring terminals (4) in a first row are respectively connected with a current sampling port (202) of the display (2), two wiring terminals (4) in each other row are respectively connected with two ends of the resistor (6), one end of a voltage sampling port (203) of the display (2) is connected with one end of the current sampling port (202) of the display (2), and the other end of the voltage sampling port (203) of the display (2) is connected with the last wiring terminal (4) in a last row; and data obtained by sampling the current sampling port (202) and the voltage sampling port (203) are transmitted to the display screen (201).

4. The lithium battery discharge testing device of claim 3, wherein: the switch (3) is arranged on a trunk of the test circuit.

5. The lithium battery discharge testing device of claim 1, wherein: the front and the top surface of the box body (1) are provided with heat dissipation holes, door leaves which can be opened in a rotating mode are arranged on two sides of the box body (1), the door leaves are hinged to the box body (1), and the heat dissipation fans (5) are regularly arranged and fixed to the door leaves through screws.