CN218481618U - Echelon battery cell testing tool - Google Patents

Abstract

The utility model provides an echelon cell testing tool, which includes a positioning mechanism and a conductive mechanism, the positioning mechanism is used for positioning the echelon cell, and the conductive mechanism is used for connecting the echelon cell with external power supply equipment , the conductive mechanism includes a test bracket and a conductive part, the test bracket is fixedly connected to the positioning mechanism, the conductive part is installed on the test bracket, and the ladder cell is connected to the conductive part after positioning. test. The echelon cell testing tool provided by the utility model can be automatically positioned and energized during the test, without manual locking and fixing and wiring energization, with high testing efficiency and labor cost savings.

Description

Echelon cell test tooling

technical field

The utility model relates to the technical field of batteries, in particular to a test tool for cascaded battery cells.

Background technique

The power battery on an electric vehicle is usually composed of multiple single cells connected in series or in parallel. When the power battery is decommissioned, these single cells can be disassembled, and after screening, they are used as echelon cells, and then passed through After the performance test, reconfigure the battery and use it as a cascade utilization battery.

The existing test method for cascade batteries is to place the cascade batteries on the test tool, manually lock and fix them, and then manually connect the positive and negative electrodes of the cascade batteries to the energized wires of the external power supply equipment, and then energize. Performance Testing.

The decommissioned power batteries are usually dismantled and screened by the manufacturer in batches, and then reorganized. The number of dismantled battery cells is large. If they are all tested by manual locking, manual wiring and electrification test equipment, it will cost a lot of money. Many working hours, low testing efficiency and high labor costs.

Utility model content

In view of this, the purpose of this utility model is to provide a cascade cell testing tool, which can improve testing efficiency and reduce labor costs.

In order to achieve the above purpose, the utility model provides a ladder battery test tool, including a positioning mechanism and a conductive mechanism, the positioning mechanism is used to position the ladder battery, and the conductive mechanism is used to place the ladder battery Connected with external power supply equipment, the conductive mechanism includes a test bracket and a conductive part, the test bracket is fixedly connected to the positioning mechanism, the conductive part is installed on the test bracket, and the ladder cells are connected to the The above-mentioned conductive part connection is tested.

Optionally, the conductive part includes a positive test pin and a negative test pin, the test bracket is provided with a first mounting hole and a second mounting hole, the positive test pin is passed through the first mounting hole, the The negative test pin is passed through the second installation hole.

Optionally, one end of the positive test needle and the negative test needle includes a needle and a spring, the needle is used to connect the ladder cell, and the other end of the positive test needle and the negative test needle is used to connect the external power supply equipment.

Optionally, the conductive part includes a first insulating sleeve and a second insulating sleeve, the first insulating sleeve is disposed between the positive test pin and the first installation hole, and the second insulating sleeve is disposed between the positive electrode test pin and the first installation hole. Between the negative test pin and the second installation hole, the positive test pin penetrates the first insulating sleeve, and the negative test pin penetrates the second insulating sleeve.

Optionally, the positioning mechanism includes a bottom plate for supporting the ladder cells, and the test bracket is connected to one end of the bottom plate.

Optionally, the positioning mechanism further includes a mobile positioning part, the mobile positioning part is connected to the other end of the bottom plate, and can move in a direction away from or close to the test stand, and the mobile positioning part is used to move The ladder cell is connected to the conductive part and positioned.

Optionally, the mobile positioning part includes a cylinder and a push plate, the telescoping rod of the cylinder is connected to the push plate, and the cylinder moves the ladder cell to the conductive part by pushing the push plate. Connect and locate.

Optionally, the push plate is provided with a groove, the notch of the groove faces the conductive part, and the groove is used for engaging the tail of the ladder cell.

Optionally, the positioning mechanism further includes a clamping part, the clamping part is connected to the bottom plate and is located near one end of the test bracket, and the clamping part is used to clamp the ladder cell Ends.

Optionally, the clamping portion includes a first clamping plate and a second clamping plate, the first clamping plate includes a top plate and a side plate, one end of the side plate is connected to the bottom plate, and the other end is connected to the bottom plate. The top plate is connected; the second clamping plate has the same structure as the first clamping plate, and is arranged symmetrically with the first clamping plate.

Compared with the prior art, the technical solution of the utility model has the following advantages: by setting the positioning mechanism and the conductive mechanism, the cascade battery can be automatically positioned and energized during the test, without manual locking and fixing and wiring energization; A spring is set at the needle head of the pole test needle, which can adapt to the installation test of the ladder cells with different expansion coefficients. The utility model consumes less time for testing and installation, has high testing efficiency and saves labor costs.

Description of drawings

Fig. 1 is the three-dimensional view of the utility model embodiment cascade cell testing tool;

Fig. 2 is a top view of the echelon cell test tooling of the embodiment of the present invention;

Fig. 3 is a test diagram of the echelon cell test tooling of the embodiment of the present invention.

In the picture:

1. Test bracket; 12. Second mounting hole; 2. Conductive part; 21. Positive test piece; 211. First spring; 22. Negative test piece; 221. Second spring; 23. First insulating sleeve; 24. 2nd insulating sleeve; 3, bottom plate; 4, mobile positioning part; 41, cylinder; 42, push plate; 421, groove; 5, clamping part; 51, first clamping plate; 511, top plate; plate; 52, the second clamping plate; 6, the ladder cell.

Detailed ways

Preferred embodiments of the utility model are described in detail below in conjunction with the accompanying drawings, but the utility model is not limited to these embodiments. The utility model covers any replacement, modification, equivalent method and scheme made on the spirit and scope of the utility model.

In order to make the public have a thorough understanding of the utility model, specific details are described in the following preferred embodiments of the utility model, and those skilled in the art can fully understand the utility model without the description of these details.

In the following paragraphs, the present utility model is described more specifically by way of example with reference to the accompanying drawings. It should be noted that all the drawings are in a relatively simplified form and use inaccurate proportions, which are only used to facilitate and clearly illustrate the purpose of the embodiment of the present utility model.

In the utility model, there are descriptions involving "first", "second", etc., and the descriptions of "first", "second", etc. are only for description purposes, not specifically referring to the order or order, nor It is not intended to limit the present utility model, but only to distinguish components or operations described with the same technical terms, and should not be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features.

Please refer to FIG. 1 and FIG. 2 , which are perspective views and top views of the cascade cell testing tooling of the embodiment of the present invention. The ladder battery test tool includes a positioning mechanism and a conductive mechanism. The conductive mechanism is used to connect the ladder battery 6 with an external power supply device. It includes a test bracket 1 and a conductive part 2. The test bracket 1 is connected and fixed to the positioning mechanism. On test stand 1. The positioning mechanism is used to position the tested ladder cell 6 to prevent loosening during the test, and to make the positive and negative electrodes of the ladder cell 6 accurately contact the positive and negative electrodes of the conductive part 2 for testing, so that manual fixing is not required The cascade cell 6 can be tested for performance by powering on with manual wiring, with high test efficiency and low labor cost.

As shown in Figures 1 and 2, the conductive part 2 includes a positive test pin 21 and a negative test pin 22. In this embodiment, the positive test pin 21 and the negative test pin 22 have the same structure and size, and are located on the left and right sides of the test stand 1 respectively. On both sides, a first installation hole (not shown) and a second installation hole 12 are respectively provided on the left and right sides of the test bracket 1, the positive test needle 21 is inserted in the first installation hole, and the negative test needle 22 is inserted in the first installation hole. Set in the second installation hole 12 . One end of the positive test pin 21 and the negative test pin 22 is located at the front side of the test bracket 1, that is, the side near the positioning mechanism, and the other end is located at the rear side of the test bracket 1, wherein the end located at the front side of the test bracket 1 includes a spring and As for the needle, as shown in FIG. 2 and FIG. 3 , the springs are respectively a first spring 211 and a second spring 221 , and the spring-connected needle is connected to the ladder cell 6 . The cascade battery 6 dismantled from the decommissioned power battery will partially expand, and the expansion coefficients are different. A spring is provided at the end where the positive test pin 21 and the negative test pin 22 are connected to the cascade battery 6 to conduct electricity. An adjustable installation space can be formed to alleviate the situation of different expansion coefficients, so that the cascade cells 6 with different expansion systems can be installed and tested.

Specifically, as shown in Figures 2 and 3, a first insulating sleeve 23 is provided between the positive test pin 21 and the first installation hole, and a second insulating sleeve is provided between the negative test pin 22 and the second installation hole 12. 24. The positive test pin 21, the first installation hole and the first insulating sleeve 23 are coaxial, the first insulating sleeve 23 is set on the outer surface of the positive test pin 21, and the two ends of the positive test pin 21 penetrate the first insulating sleeve 23. The negative test needle 22, the second installation hole 12 and the second insulating sleeve 24 are coaxial, the second insulating sleeve 24 is set on the outer surface of the negative test needle 22, and the two ends of the negative test needle 22 penetrate the second insulation Set of 24. In this embodiment, the structure and size of the first insulating sleeve 23 and the second insulating sleeve 24 are the same, as shown in Figure 3, one end of the two insulating sleeves is respectively embedded in the first installation hole and the second installation hole 12, and the other One end extends out of the mounting hole where it sits. An insulating sleeve is added between the test pin and the installation hole to prevent the test result from being affected by the over-electricity of the test bracket 1, and to prevent personnel from touching the test bracket 1 and getting an electric shock, thereby improving the safety and reliability of the test.

Specifically, as shown in FIG. 3 , the positioning mechanism includes a bottom plate 3 , a moving positioning part 4 and a clamping part 5 . The bottom plate 3 is used to support the bottom of the tested cascade cell 6. In this embodiment, the bottom plate 3 can be a bakelite board. While supporting, it also insulates the cascade cell 6 to improve test safety and test tooling wear resistance. In this example, the mobile positioning part 4 is used to move the ladder cell 6 to a position where it is in contact with the conductive part 2 and to position it to prevent loosening during the test. As shown in Figure 3, the test bracket 1 is connected to one end of the base plate 3, and the mobile positioning part 4 is connected to the other end of the base plate 3, and can move away from or close to the direction of the test bracket 1, and the mobile positioning part 4 is used for moving The ladder cell 6 is connected to the conductive part 2 and positioned. As shown in Figure 1, the mobile positioning part 4 includes a cylinder 41 and a push plate 42. The telescopic rod end of the cylinder 41 is connected with the push plate 42. During the test, the step cell 6 is first placed on the base plate 3, and then the expansion and contraction of the cylinder 41 The rod extends the push plate 42, pushes the ladder cell 6 to move toward the direction of the conductive part 2, and connects the positive and negative poles at the end of the ladder cell 6 to the positive test pin 21 and the negative test pin 22. During the test, the cylinder The telescopic rod of 41 can also maintain the extended state, so that the ladder cell 6 can be positioned in the front and rear directions without loosening, and the stability of the test can be improved. As shown in Figure 2, a groove 421 is provided on the push plate 42, the opening of the groove 421 faces the position of the conductive part 2, and the opening size of the groove 421 is adapted to the outer dimension of the ladder cell 6 to be tested, which can Engage with the tail of the ladder cell 6 to be tested, and also orient the two sides of the tail of the ladder cell 6, so that the positive and negative poles of the ladder cell 6 correspond to the positive test pin 21 and the negative test pin 22 more accurately connection to improve positioning reliability. As shown in FIG. 3 , the clamping part 5 is provided at one end of the bottom plate 3 close to the test bracket 1 for clamping the end of the ladder cell 6 so as to further clamp and position the ladder cell 6 . Specifically, as shown in FIG. 1, the clamping part 5 includes a first clamping plate 51 and a second clamping plate 52, which are respectively located on both sides of the bottom plate 3, and can clamp both sides of the end of the ladder cell 6. , wherein the first clamping plate 51 includes a top plate 511 and a side 512, the side 512 is connected to the bottom plate 3, the top plate 511 is connected to the side 512 to form an inverted L shape, the second clamping plate 52 and the first clamping plate 51 The structure and size are the same, and the second clamping plate 52 and the first clamping plate 51 are arranged symmetrically, and the sides of the two clamp the two sides of the end of the ladder cell 6, and at the same time, the ladder cell 6 moves close to the conductive part 2, it plays a guiding role, and the top plates of the two are located on the top of the ladder cell 6, and limit the top of the ladder cell 6.

The step cell test tool provided by the embodiment of the present invention, when in use, can first select the matching test tool for testing according to the size of the step cell 6 to be tested and the distance between the positive and negative poles, and then place the step cell 6 in the On the test tool, use the cylinder 41 to push the telescopic rod against the tail of the step cell 6, so that the end of the step cell 6 to be tested touches the positive and negative test pins, so that the positive test pin 21 and the negative test pin 22 can be tested respectively. Contact the positive pole and the negative pole of the ladder cell 6, and then an external power supply device (not shown in the figure) supplies power to the ladder cell 6 through the positive test pin 21 and the negative test pin 22, and test the ladder by the change of the power supply voltage and current The capacity, internal resistance, and voltage of the battery cell 6. After the test is completed, the telescopic rod of the cylinder 41 is retracted, that is, a test cycle is completed.

Although the above embodiments are described and illustrated separately, some common technologies are involved, and in the eyes of those of ordinary skill in the art, the embodiments can be replaced and integrated, and the content that is not clearly recorded in one of the embodiments can be Reference is made to another example documented.

The implementation methods described above do not constitute a limitation to the scope of protection of the technical solution. Any modifications, equivalent replacements and improvements made within the spirit and principles of the above implementation methods shall be included in the protection scope of the technical solution.

Claims (10)

1. A step battery test tool, characterized in that: comprising a positioning mechanism and a conductive mechanism, the positioning mechanism is used to locate the step battery (6), and the conductive mechanism is used to place the step battery (6) 6) Connected to external power supply equipment, the conductive mechanism includes a test bracket (1) and a conductive part (2), the test bracket (1) is fixedly connected to the positioning mechanism, and the conductive part (2) is installed on the The test bracket (1), the ladder cell (6) is connected to the conductive part (2) after being positioned for testing. 2. The cascade battery test tool according to claim 1, characterized in that: the conductive part (2) includes a positive test pin (21) and a negative test pin (22), and the test bracket (1) is provided with The first installation hole and the second installation hole (12), the positive test needle (21) is passed through the first installation hole, and the negative test needle (22) is passed through the second installation hole (12) ). 3. The ladder battery testing tool according to claim 2, characterized in that: one end of the positive test needle (21) and the negative test needle (22) includes a needle and a spring, and the needle is used to connect the ladder The battery cell (6), the other end of the positive test pin (21) and the negative test pin (22) are used to connect the external power supply equipment. 4. The ladder cell testing tool according to claim 3, characterized in that: the conductive part (2) includes a first insulating sleeve (23) and a second insulating sleeve (24), and the first insulating sleeve ( 23) Set between the positive test needle (21) and the first installation hole, the second insulating sleeve (24) is set between the negative test needle (22) and the second installation hole (12 ), the positive test needle (21) penetrates the first insulating sleeve (23), and the negative test needle (22) penetrates the second insulating sleeve (24). 5. The ladder battery testing tool according to claim 1, characterized in that: the positioning mechanism includes a bottom plate (3), the bottom plate (3) is used to support the ladder battery (6), and the test The bracket (1) is connected to one end of the bottom plate (3). 6. The cascade battery testing tool according to claim 5, characterized in that: the positioning mechanism further includes a mobile positioning part (4), and the mobile positioning part (4) is connected to another part of the bottom plate (3) One end, and can move away from or close to the direction of the test bracket (1), the mobile positioning part (4) is used to move the ladder cell (6) to connect with the conductive part (2), and perform position. 7. The cascade cell testing tool according to claim 6, characterized in that: the mobile positioning part (4) includes a cylinder (41) and a push plate (42), and the telescopic rod of the cylinder (41) is in contact with the The push plate (42) is connected, and the cylinder (41) moves the ladder cell (6) to connect with the conductive part (2) and position it by pushing the push plate (42). 8. The ladder cell testing tool according to claim 7, characterized in that: the push plate (42) is provided with a groove (421), and the notch of the groove (421) faces the conductive part ( 2), the groove (421) is used to engage the tail of the ladder cell (6). 9. The cascade cell testing tool according to claim 5, characterized in that: the positioning mechanism further includes a clamping part (5), the clamping part (5) is connected with the bottom plate (3), and Located near one end of the test bracket (1), the clamping portion (5) is used to clamp the end of the ladder cell (6). 10. The ladder cell testing tool according to claim 9, characterized in that: the clamping part (5) comprises a first clamping plate (51) and a second clamping plate (52), the first The clamping plate (51) includes a top plate (511) and a side plate (512), one end of the side plate (512) is connected to the bottom plate (3), and the other end is connected to the top plate (511); The second clamping plate (52) has the same structure as the first clamping plate (51), and is arranged symmetrically with the first clamping plate (51).

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