CN219065513U

CN219065513U - Tool for connecting battery cell with test equipment

Info

Publication number: CN219065513U
Application number: CN202121936154.3U
Authority: CN
Inventors: 于奥; 姬嘉帅; 何见超; 高飞; 骆兆军; 杨红新
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2023-05-23
Anticipated expiration: 2031-08-17

Abstract

The utility model relates to a tool for connecting a battery cell with test equipment, which comprises a tool main body, a busbar unit and a probe unit; the tool main body is used for bearing the battery cell to be tested; the busbar unit is arranged on at least one of the tool main bodies and comprises two busbars arranged at intervals, and the two busbars are used for being connected with the testing equipment; the probe unit is arranged corresponding to the busbar unit, and comprises two probes which are connected with two busbars in the busbar unit one by one, and the two probes are respectively connected with two poles of the battery cell to form electric connection between the test equipment and the battery cell. According to the tool for connecting the battery cell with the test equipment, the busbar unit and the probe unit are arranged, and the probe is connected with the busbar, so that compared with a traditional test process, other equipment is not needed, the test operation on the battery cell can be simplified, the test efficiency on the battery cell can be improved, and the test cost is reduced.

Description

Tool for connecting battery cell with test equipment

Technical Field

The utility model relates to the technical field of lithium ion batteries, in particular to a tool for connecting a battery cell with test equipment.

Background

The electrical performance of the lithium ion battery is generally required to be tested after the battery cell is assembled, and the conventional testing equipment is generally required to be connected with the battery cell through a wire. However, in order to facilitate the assembly of the battery module, the square-case cell is designed to be in point contact with the pole at the beginning of the design, and the connection between the square-case cell and the external lead needs to be accomplished by additionally using a laser welding bus bar. Therefore, for a common lithium electric test, a welding machine and various buses are additionally arranged, so that the cost and the efficiency of the test are greatly affected.

In addition, in the formation capacity process of the square shell battery core before the battery is disconnected, the requirement of charge and discharge is mainly met through connection of the probe and the battery core pole, and the whole probe is arranged on a formation and capacity machine and is driven to contact with the square shell battery core pole by means of movement of equipment. Therefore, when the electrical performance of the battery cell is tested at present, large-scale equipment is needed, so that the operation is complex, the efficiency is low, and the cost is high.

Disclosure of Invention

In view of the above, the present utility model aims to provide a tool for connecting a battery cell with a testing device, which can connect the battery cell with the testing device without using other devices, can simplify the testing operation of the battery cell, can improve the testing efficiency of the battery cell, and can reduce the testing cost.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a tool for connecting a battery cell with test equipment comprises a tool main body, a busbar unit and a probe unit; wherein, the liquid crystal display device comprises a liquid crystal display device,

the tool main body is used for bearing the battery cell to be tested;

the busbar unit is arranged on at least one of the tool main bodies, and comprises two busbars arranged at intervals, wherein the two busbars are used for being connected with the test equipment;

the probe unit is arranged corresponding to the busbar unit, and comprises two probes which are connected with two busbars in the busbar unit one by one, and the two probes are respectively connected with two poles of the battery cell so as to form electric connection between the test equipment and the battery cell.

Further, the busbar is L-shaped and is provided with a first plate body and a second plate body; the first plate body is connected with the probe; the free end of the second plate body extends out of the tool main body.

Further, a connecting hole is formed in the part of the second plate body extending out of the tool main body; the connecting hole is used for being connected with the testing equipment.

Further, a distance between two of the bus bars in the bus bar unit is adjustable.

Further, the position of the probe is adjustable in a direction pointing to the pole.

Further, the tool main body comprises two clamping plates which are arranged at intervals, and a connecting unit which is connected between the two clamping plates, and the battery cell is clamped between the two clamping plates.

Further, the distance between the two clamping plates is adjustable.

Further, at least one of the bus bars is provided with a first bar-shaped hole; the first strip-shaped holes are arranged along the arrangement direction between the two bus bars; the busbar and one of the clamping plates are connected through a thread pair, and a bolt in the thread pair penetrates through the first strip-shaped hole.

Further, a second strip-shaped hole which is arranged along the direction that the probe points to the pole is formed in the clamping plate; the buss bar is secured to the clamping plate by fasteners passing through the second bar-shaped holes.

Further, one of the clamping plates is provided with a supporting block which is arranged corresponding to the busbar; the busbar is arranged on the supporting block.

Compared with the prior art, the utility model has the following advantages:

according to the tool for connecting the battery cell with the test equipment, the busbar unit and the probe unit are arranged on the tool main body, and the probe is connected with the busbar, so that connection between the battery cell and the test equipment can be realized when the busbar is connected with the test equipment and the probe is connected with the pole, and the electrical performance of the battery cell can be tested.

In addition, the busbar is arranged in an L shape, so that the busbar can be conveniently connected with the probe and the testing equipment at the same time. The connecting holes are formed in the second plate body, so that connection between the busbar and the testing equipment can be facilitated. The interval between two buses in the bus bar unit can be adjusted, so that the tool can be applied to electric cores with different sizes. The position of the probe is adjustable along the direction pointing to the polar column, so that the tool can be applied to the test of the electric core with different lengths. The tool main body comprises two clamping plates which are arranged at intervals, and the battery cell is clamped between the two clamping plates, so that the stability of placing the battery cell can be improved.

In addition, through the interval adjustable setting between two splint, can make this frock be applied to the test of the electric core of different thickness. And the first strip-shaped hole is formed in at least one busbar, so that the distance between the two busbars is adjustable, and the structure is simple and the design and implementation are convenient. Through set up the second bar hole on splint to adjust the position of probe, simple structure is convenient for process manufacturing. By arranging the supporting block on one clamping plate, the connection between the probe and the pole can be realized conveniently.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a tool for connecting a battery cell with test equipment according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a tool for connecting a battery cell with a test device according to an embodiment of the present utility model under another view angle;

FIG. 3 is a top view of FIG. 2;

fig. 4 is a left side view of fig. 2.

Reference numerals illustrate:

1. a clamping plate; 101. a second bar-shaped hole;

2. a busbar; 201. a first bar-shaped hole;

3. a bolt; 4. a support block; 5. a probe; 6. and a battery cell.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "back", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. In addition, the terms "first," "second," are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

The embodiment relates to a tool for connecting a battery cell with test equipment, which comprises a tool main body, a busbar unit and a probe unit in an integral structure.

The tool main body is used for bearing the battery cell 6 to be tested. The busbar unit is located at least one on the frock main part, and the busbar unit includes two busbar 2 that the interval set up, and two busbar 2 are used for linking to each other with test equipment. The probe units are arranged corresponding to the busbar units, and each probe unit comprises two probes 5 which are connected with two busbars 2 in the busbar unit one by one, and the two probes 5 are respectively connected with two poles of the battery cell 6 to form electric connection between the test equipment and the battery cell 6.

The tool for connecting the battery cell with the test equipment of the embodiment is characterized in that the busbar unit and the probe unit are arranged on the tool main body, and the probe 5 is connected with the busbar 2, so that connection between the battery cell 6 and the test equipment can be realized when the busbar 2 is connected with the test equipment and the probe 5 is connected with the pole, and thus, the electrical performance of the battery cell 6 can be tested.

Based on the above overall constitution, an exemplary structure of the fixture for connecting the battery cell with the test equipment of the present embodiment is shown in fig. 1 to 4, wherein the present embodiment is described taking the fixture body provided with one bus bar unit as an example. For manufacturing convenience, the tool body includes two clamping plates 1 arranged at intervals, and a connection unit for connecting the two clamping plates 1. The battery cell 6 is clamped between the two clamping plates 1, so that the placement stability of the battery cell 6 can be improved, and the accuracy of the battery cell 6 test can be ensured. Furthermore, as a specific embodiment, the clamping plate 1 of the present embodiment is rectangular, and of course, the shape of the clamping plate 1 can be adjusted accordingly according to design requirements.

In this embodiment, in order to enable the tool to be applied to the test of the battery cells 6 with different thicknesses, the interval between the two clamping plates 1 is adjustable. For this purpose, as shown in fig. 1, the connection unit of the present embodiment includes a bolt 3 passing through two clamping plates 1, and a nut screwed with the bolt 3. In addition, in order to improve the stability of the clamping of the battery cell 6, as a specific embodiment, four bolts 3 are provided at four corner points of the clamping plate 1.

In addition, in order to enable the tool to be applied to the testing of the battery cells 6 with different lengths, in this embodiment, the position of the probe 5 is adjustable along the direction pointing to the pole (i.e., the direction indicated by the arrow in fig. 4). For this purpose, as shown in fig. 1 and 2, a second bar-shaped hole 101 arranged in a direction in which the probe 5 is directed toward the post is formed in the clamping plate 1 for mounting the bus bars 2, and the two bus bars 2 are respectively fixed to the clamping plate 1 by fasteners passing through the second bar-shaped hole 101.

In this embodiment, the fastener of the present embodiment is specifically a bolt 3 inserted into the second bar-shaped hole 101, and the bolt can be screwed with a nut to fix the busbar 2. Moreover, in order to improve the use effect, the second strip-shaped holes 101 of the present embodiment are provided with a plurality of second strip-shaped holes along the arrangement direction of the two bus bars 2, so that the distance between the two bus bars 2 can be adjusted, so that the tool is used for testing the battery cells 6 with different specifications.

In addition, based on the fact that the cell 6 has a certain thickness, a certain distance is formed between the pole and the side face of the cell 6, at this time, in order to facilitate the connection between the probe 5 and the pole, as shown in fig. 3 and 4, a supporting block 4 corresponding to the bus bar 2 is provided on the clamping plate 1 for setting the bus bar 2, and the bus bar 2 is provided on the supporting block 4. In this embodiment, in order to enable the two clamping plates 1 to be commonly used, as shown in fig. 1, the two clamping plates 1 of this embodiment have the same structure.

In this embodiment, in order to facilitate connection of the busbar 2 with the probe 5 and the test device at the same time, as shown in fig. 4, the busbar 2 is L-shaped and has a first plate body and a second plate body, and the first plate body is connected with the probe 5, and a free end of the second plate body extends outside the tool body. In addition, as shown in fig. 2, a portion of the second plate body extending outside the tool body is formed with a connection hole for connection with the test equipment. Of course, the bus bar 2 may be formed in other shapes such as a U shape and an E shape, instead of being formed in an L shape. Besides, the second plate body can be retracted into the tool body or arranged flush with the tool body besides extending the second plate body to the tool body.

The probes 5 are specifically welded to the busbar 2, and the probes 5 are conventional probes 5 with spring pieces, plastic brackets and the like for testing the electrical performance of the battery cells 6. In addition, for can making this frock be applied to the electric core 6 of different size specifications, the interval between two busbar 2 in the busbar unit is adjustable to be used for adjusting the interval between two probes 5, thereby can make this frock be applicable to the test of electric core 6 of interval difference between two utmost point posts. Thus, by arranging the support blocks 4 in different second bar-shaped holes 101, the two busbars 2, i.e. the distance between the two probes 5, can be changed, while by adjusting the relative positions of the first bar-shaped holes 201 of the busbars 2 and the support blocks 4, the positions of the two busbars 2, i.e. the positions of the probes 5, can be fine-tuned.

Specifically, as shown in fig. 1 and 2, in order to make it possible to commonly use two bus bars 2, a first bar-shaped hole 201 is configured in each of the two bus bars 2. The first bar-shaped holes 201 are provided along the arrangement direction between the two bus bars 2 (i.e., the left-right direction as viewed in the state of fig. 2). The busbar 2 and one clamping plate 1 are connected through a thread pair, and a bolt 3 in the thread pair penetrates through the first strip-shaped hole 201 and is in threaded connection with a nut after penetrating through the supporting block 4 and the second strip-shaped hole 101, so that the busbar 2 is fixed.

Here, it should be noted that, instead of providing the first bar-shaped holes 201 on both of the bus bars 2, it may be provided on only one of the bus bars 2. In addition, instead of providing the second bar-shaped holes 101 on both clamping plates 1, only the second bar-shaped holes 101 may be provided on the clamping plates 1 for fixing the bus bar 2.

By adopting the structure, the tool for connecting the battery cell with the testing equipment can be used for testing the electrical performance of the battery cell 6 without using other equipment, and can improve the testing efficiency of the battery cell 6 and reduce the testing cost. In addition, through adjusting the position of the probe 5 and the interval between the two buses 2, the tool can be used for testing the battery cells 6 with different specifications, so that the tool has a good use effect.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A frock for electricity core is connected with test equipment, its characterized in that: the fixture comprises a fixture main body, a busbar unit and a probe unit; wherein, the liquid crystal display device comprises a liquid crystal display device,

the tool main body is used for bearing a battery cell (6) to be tested;

the busbar unit is arranged on at least one of the tool main bodies, and comprises two busbars (2) arranged at intervals, wherein the two busbars (2) are used for being connected with the test equipment;

the probe units are arranged corresponding to the busbar units, each probe unit comprises two probes (5) which are connected with two busbars (2) in the busbar units one by one, and the two probes (5) are respectively connected with two poles of the battery cell (6) so as to form electric connection between the test equipment and the battery cell (6).

2. The tooling for connecting a cell with test equipment of claim 1, wherein:

the busbar (2) is L-shaped and is provided with a first plate body and a second plate body;

the first plate body is connected with the probe (5);

the free end of the second plate body extends out of the tool main body.

3. The tooling for connection of a cell to a test device of claim 2, wherein:

a connecting hole is formed in the part, extending out of the tool main body, of the second plate body;

the connecting hole is used for being connected with the testing equipment.

4. The tooling for connecting a cell with test equipment of claim 1, wherein:

the distance between two of the bus bars (2) in the bus bar unit is adjustable.

5. The tooling for connecting a cell with test equipment of claim 1, wherein:

the position of the probe (5) is adjustable in the direction pointing to the pole.

6. The tooling for connection of a cell to a test device of claim 4 or 5, wherein:

the tool main body comprises two clamping plates (1) which are arranged at intervals, and a connecting unit which is connected between the two clamping plates (1), and the battery cell (6) is clamped between the two clamping plates (1).

7. The tooling for connection of a cell to a test device of claim 6, wherein:

the distance between the two clamping plates (1) is adjustable.

8. The tooling for connection of a cell to a test device of claim 6, wherein:

at least one of the bus bars (2) is provided with a first strip-shaped hole (201);

the first strip-shaped holes (201) are arranged along the arrangement direction between the two bus bars (2);

the busbar (2) is connected with one clamping plate (1) through a thread pair, and a bolt (3) in the thread pair is arranged in the first strip-shaped hole (201) in a penetrating mode.

9. The tooling for connection of a cell to a test device of claim 6, wherein:

the clamping plate (1) is provided with a second strip-shaped hole (101) which is arranged along the direction of the probe (5) pointing to the polar column;

the busbar (2) is fixed to the clamping plate (1) by means of a fastener passing through the second strip-shaped hole (101).

10. The tooling for connection of a cell to a test device of claim 6, wherein:

one clamping plate (1) is provided with a supporting block (4) which is arranged corresponding to the busbar (2);

the busbar (2) is arranged on the supporting block (4).