CN213337950U - Universal test stand device for square single batteries - Google Patents

Abstract

A universal test stand device for square single batteries comprises a plurality of battery test units, a heat-resistant panel, a fixing component and a supporting component; the battery test units are used for carrying out synchronous tests on the battery test units; and each battery test cell comprises: the device comprises a heat-resistant supporting plate 1, a fixing block 2, a fixing adjusting block 3, a tested battery sample 4, a current contact probe 5, a voltage contact probe 6, a current input end, a current output end 7 and a voltage acquisition end 8. Adopt the utility model discloses a test device can satisfy the square battery's of different types, size test demand.

Description

Universal test stand device for square single batteries

Technical Field

The utility model relates to a battery test stand device especially relates to square battery cell general type test stand device.

Background

With continuous shortage of global petroleum resources and continuous deterioration of atmospheric environment, development and utilization of new energy are generally regarded by all countries in the world, and lithium batteries gradually become one of ideal energy sources in the century due to the unique performance advantages of high working voltage, small volume, light weight, high energy, no memory effect, no pollution, long cycle life and the like. With the development of scientific technology and the improvement of the living standard of material culture of people, the appearance of a large number of portable electronic products for industrial use, civil use and medical use brought by the rapid development of information and microelectronic industry, the development and development of the electric automobile industry and the enhancement of environmental protection consciousness, people have more urgent needs on lithium batteries which are small in size, light in weight, high in energy, safe, reliable, pollution-free and capable of being repeatedly charged and used, and the lithium batteries also become powerful power for promoting the rapid development of the lithium batteries.

In China, lithium batteries are widely applied to various electronic products, but the development momentum is the strongest, the lithium batteries are also applied to the field of new energy automobiles, and the lithium battery industry is in the golden period of development as the industries such as new energy electric automobiles and electric bicycles are rapidly developed under the support of national policies. Along with the rapid development and practical application of lithium batteries, the electrical performance of lithium batteries is more and more emphasized by people. Under the condition that a plurality of lithium battery detection standards are developed in developed countries such as Europe, America and the like, China also actively develops lithium battery detection technology and safety and reliability evaluation method research, and simultaneously formulates and releases a series of national lithium battery detection standards, industry standards and the like so as to standardize the product quality of the lithium battery industry and improve the industry development level.

Among batteries used in new energy electric vehicles, the utilization rate of square batteries is the majority, so that the detection of electrical performance and the evaluation of safety and reliability of square batteries of different types and sizes are particularly necessary. However, when the battery is detected and evaluated for safety and reliability, because the types and sizes of the square batteries are different and the number of test samples required by relevant standards is large, a plurality of different sets of test lines and test tools need to be prepared and need to be replaced back and forth during testing, the test operation process is complex, a large amount of time and workload are consumed, sometimes even lugs need to be welded outside, accidents can occur even though carelessly, and personnel are injured.

Therefore, when the battery is detected and evaluated in safe reliability, in order to meet the test requirements of square batteries of different types and sizes, the complex operation required for testing the batteries of different sizes is omitted, the test flow is optimized, and the occurrence of test accidents is avoided. The universal test stand device for the square single batteries is needed to meet the test requirements of square batteries of different types and sizes and avoid consuming a large amount of time and workload.

Disclosure of Invention

The utility model relates to a square battery cell universal type test stand device to solve aforementioned problem wholly or partially effectively. The technical scheme of the utility model is that:

a universal test stand device for square single batteries comprises a plurality of battery test units, a heat-resistant panel, a fixing component and a supporting component; the battery test units are used for carrying out synchronous tests on the battery test units; and each battery test cell comprises:

a heat-resistant support plate 1 having heat and flame resistance for reducing the fire risk in the test;

the fixed block 2 is used for fixing the tested sample;

the fixed adjusting block 3 is used for sliding up and down along the vertical direction of the battery so as to adapt to test samples with different sizes and finish the operation of pressing and loosening the battery;

a tested battery sample 4;

the current contact probe 5 is connected with the positive electrode and the negative electrode of the sample to be tested so as to provide test current;

the voltage contact probe 6 is connected with the anode and the cathode of the tested sample so as to acquire the real-time voltage value of the tested sample;

a current input and output end 7 for connecting the input and output ends of the test instrument for providing current;

and the voltage acquisition end 8 is used for connecting a voltage acquisition sensor of the test instrument.

Adopt the technical scheme of the utility model following technical advantage has at least:

1. the device is flexible in connecting and fixing components, can be used for testing square batteries with different sizes by independently adjusting the distance, avoids the complex process that a plurality of different test wires and test tools are needed for testing batteries with different sizes, and obtains good effect when a prototype of the device is applied to charge-discharge and electrical performance tests;

2. the device has reasonable design and compact volume, combines a plurality of battery test units into one, can realize synchronous test of single batteries in batches, and can greatly save test space;

3. the panel, the shell, the fixing part, the supporting part and the like of the device are all made of heat-resistant and flame-retardant materials, so that the heat damage caused by the heating and the burning of the battery due to the test is prevented;

4. the device accords with the test requirement of multiple domestic and foreign battery test standard, includes: GB 31241-;

5. the device is simple to operate and easy to popularize.

Drawings

FIG. 1 shows a schematic diagram of a universal test stand device for square single batteries;

FIG. 2 shows a schematic diagram of a battery test cell;

fig. 3 shows a diagram of a test stand device for a square cell.

Detailed Description

Fig. 1-2 show a schematic diagram of a square cell universal test stand device and a cell test unit.

The device comprises a plurality of battery test units, a heat-resistant panel, a fixing part, a supporting part and the like, and can realize synchronous tests of a plurality of single batteries. Each cell test cell comprises 8 components, respectively: 1. the heat-resistant support plate has heat resistance and flame resistance, and reduces the fire risk of the test; 2. the fixed block is used for fixing the sample to be detected; 3. the fixed adjusting block can slide up and down along the vertical direction of the battery, so that the fixed adjusting block is suitable for test samples with different sizes to complete the operation of pressing and loosening the battery; 4. a tested battery sample; 5. the current contact probe is connected with the positive electrode and the negative electrode of the sample to be tested and provides test current; 6. the voltage contact probe is connected with the anode and the cathode of the tested sample and used for collecting the real-time voltage value of the tested sample; 7. the current input end and the current output end are used for connecting the input end and the output end of the current provided by the test instrument; 8. and the voltage acquisition end is used for connecting a voltage acquisition sensor of the test instrument.

The test method adopting the device comprises the following steps:

1. firstly, measuring the size of a tested battery sample, then adjusting the position of a fixing block to ensure that the distance between the fixing blocks in the vertical direction is 5-10 mm larger than the size of the tested battery sample, and the distance between the fixing blocks in the left-right direction is 2-3 mm larger than the size of the tested battery sample, locking a screw of the fixing block, and determining the relative position distance;

2. the electrode of the tested battery sample is placed between the fixed blocks upwards, and the fixed adjusting block is pushed towards the direction of the tested battery sample and is pressed tightly, so that the tested battery sample is completely fixed on the device;

3. connecting the current input end and the current output end with the input end and the current output end of the test instrument respectively, and firmly connecting the input end and the current output end;

4. connecting the voltage acquisition end with a voltage acquisition sensor provided by a test instrument, and firmly connecting the voltage acquisition end with the voltage acquisition sensor;

5. carrying out charge and discharge and related electrical property tests on a tested battery sample;

6. after the test of the tested battery sample is finished, when the tested battery sample needs to be taken down from the device, the tested battery sample is firstly pressed towards the direction of the supporting plate, then the fixed adjusting block is pushed towards the opposite direction of the tested battery sample, and then the fixed adjusting block can be released and taken down.

In the process of detecting and evaluating the safety and reliability of the battery, in order to verify the practicability and effectiveness of the universal test stand device for the square single batteries, a set of prototype machine is manufactured according to a device schematic diagram, a plurality of square single battery samples are selected, a charge-discharge test is carried out, relevant test data are recorded, and the test process is smooth. The charge and discharge test data are shown in table 1.

Table 1 charge and discharge test data

In addition, a diagram of a test stand device for a square battery cell is shown in fig. 3.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and the technical effects of the present invention can be achieved by the same means, which all belong to the protection scope of the present invention. The technical solution and/or the embodiments of the invention may be subject to various modifications and variations within the scope of the invention.

Claims (1)

1. A universal test stand device for square single batteries comprises a plurality of battery test units, a heat-resistant panel, a fixing component and a supporting component; the battery test units are used for carrying out synchronous tests on the battery test units; and each battery test cell comprises:

a heat-resistant support plate (1) having heat and flame resistance for reducing the fire risk of the test;

the fixed block (2) is used for fixing the tested sample;

the fixed adjusting block (3) is used for sliding up and down along the vertical direction of the battery so as to adapt to test samples with different sizes and finish the operation of pressing and loosening the battery;

a tested battery sample (4);

the current contact probe (5) is connected with the positive electrode and the negative electrode of the sample to be tested so as to provide test current;

the voltage contact probe (6) is connected with the positive electrode and the negative electrode of the tested sample so as to acquire a real-time voltage value of the tested sample;

the current input and output end (7) is used for connecting the input end and the output end of the test instrument for providing current;

and the voltage acquisition end (8) is used for connecting a voltage acquisition sensor of the test instrument.

Images