CN218896172U

CN218896172U - Battery testing device

Info

Publication number: CN218896172U
Application number: CN202222756749.1U
Authority: CN
Inventors: 周东健
Original assignee: Linkdata New Energy Co Ltd
Current assignee: Linkdata New Energy Co Ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-04-21
Anticipated expiration: 2032-10-18

Abstract

The application provides a battery testing device, which comprises a testing table, a guide rod, a lifting table, a metal probe and a driving mechanism; the test bench is provided with a bearing area for bearing the battery; the guide rod is arranged on the test bench and extends along the second direction; the lifting platform is arranged on the guide rod; the metal probe is arranged on the lifting table and can move on the lifting table along a first direction so as to be contacted with the electrode of the battery, and the first direction is perpendicular to the second direction; the driving mechanism can drive the lifting platform to move along the second direction relative to the guide rod. This application can raise the efficiency and reduce cost, and metal probe can be fixed in the testboard with the battery with the electrode contact of battery on, reduces the risk that the battery emptys to this reduces the potential safety hazard that leads to because of empting.

Description

Battery testing device

Technical Field

The application relates to the technical field of electrochemical detection, in particular to a battery testing device.

Background

In the prior art, in the context of electrochemical testing of, for example, square lithium ion batteries, it is common to weld tabs on the electrode posts of the battery, with the test terminals being connected to the tabs by metal alligator clips. Welding the tabs on the electrode posts not only increases the cost and time of electrochemical testing, resulting in low testing efficiency, but also the battery is easy to topple over and has certain potential safety hazards because no clamp is used for fixing the battery in the testing process.

Disclosure of Invention

In view of the above, the present application provides a battery testing device for improving the problems of low efficiency, high cost, and easy dumping caused by the battery testing by welding the tabs.

The application provides a battery testing arrangement, including testboard, guide arm, elevating platform, metal probe and actuating mechanism. The test bench is provided with a bearing area for bearing the battery; the guide rod is arranged on the test bench and extends along the second direction; the lifting platform is arranged on the guide rod; the metal probe is arranged on the lifting table and can move on the lifting table along a first direction so as to be contacted with the electrode of the battery, and the first direction is perpendicular to the second direction; the driving mechanism can drive the lifting platform to move along the second direction relative to the guide rod.

Optionally, in the second direction, the orthographic projection of the metal probe extends beyond the orthographic projection of the lift table.

Optionally, the elevating platform includes the stage body, sets up connecting piece and slider on the stage body, and the one end and the slider of connecting piece are connected so that the connecting piece can be along first direction removal relatively the stage body, and the other end of connecting piece extends to outside the stage body, and metal probe sets up on the connecting piece and towards the loading area.

Optionally, the sliding part comprises a sliding rail, and one end of the connecting part is provided with a sliding groove clamped with the sliding rail.

Optionally, a positioning mark is arranged on the sliding piece and is used for positioning and marking the distance between the metal probes.

Optionally, the connecting piece is a telescopic piece which can be telescopic along a third direction, and the third direction, the first direction and the second direction are perpendicular to each other.

Optionally, the driving mechanism is disposed on the lifting platform and located at a side of the lifting platform facing away from the bearing area.

Optionally, the driving mechanism includes a linear bearing, and the linear bearing is sleeved on the guide rod.

Optionally, the battery testing device comprises two guide rods which are oppositely arranged along the first direction, and the two guide rods are respectively arranged at two ends of the lifting platform along the first direction in a penetrating way.

Optionally, the guide rod is provided with a blocking part for abutting against and blocking the lifting platform from moving towards the test platform; in the second direction, the height of the blocking part is H ₁ The height of the metal probe between the lifting table and the test table is H ₂ And H is ₁ >H ₂ 。

As described above, the battery testing device is provided with the test bench, the guide rod, the lifting platform, the metal probe and the driving mechanism, the battery is placed on the test bench, the metal probe is arranged on the lifting platform, the driving mechanism can drive the lifting platform to move along the second direction relative to the guide rod so as to drive the lifting platform to drive the metal probe to reach the preset position above the battery, and the metal probe is adjusted to move along the first direction on the lifting platform so as to be contacted with the electrode (such as the electrode pole) of the battery, so that the battery can be subjected to relevant test.

Drawings

Fig. 1 is a schematic perspective view of a battery testing device according to an embodiment of the present disclosure;

FIG. 2 is a front elevational view of the battery testing device of FIG. 1;

FIG. 3 is a left side view of the battery testing device shown in FIG. 1;

fig. 4 is a top view of the battery testing device shown in fig. 1.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly described below with reference to specific embodiments and corresponding drawings. It will be apparent that the embodiments described below are only some, but not all, of the embodiments of the present application. The following embodiments and technical features thereof may be combined with each other without conflict, and also belong to the technical solutions of the present application.

It should be understood that in the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the technical solutions and simplifying the description of the corresponding embodiments of the present application, and do not indicate or imply that the device or element must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Example 1

Fig. 1 to 4 are schematic structural diagrams of four views of a battery detection device according to an embodiment of the present application, in which a battery is disposed. Referring to fig. 1 to 4, the battery detection device 1 includes a test stand 10, a guide rod 11, a lifting stand 12, two metal probes 13, and a driving mechanism 14.

The test bench 10 is provided with a carrying area for carrying the battery 2. For example, the test stand 10 may be a plate as shown in the figures, the plate being rectangular for illustrative purposes only, providing a relatively flat bearing surface on which bearing areas (not shown) may be identified by dashed line locations to facilitate quick placement of the battery 2 by a tester, and otherwise prevent placement of the battery 2 outside the maximum adjustment range of the two metal probes 13.

The guide rod 11 is disposed on the test bench 10, and extends along the second direction y, and the lifting platform 12 is mounted on the guide rod 11. In the implementation shown in the figure, the battery detection device 1 is provided with two guide rods 11, and the two guide rods 11 are oppositely arranged along the first direction x and respectively penetrate through two end parts of the lifting platform 12 arranged along the first direction x, so that the lifting platform 12 has better stability on the guide rods 11.

The first direction x may be regarded as a width direction of the battery detection device 1, the second direction y may be regarded as a height direction of the battery detection device 1, and a thickness direction of the battery detection device 1 may be the third direction z. The first direction x, the second direction y and the third direction z may be perpendicular to each other. In view of errors in the process, measurement, etc., the term "perpendicular" throughout this application does not require that the angle between the two must be 90 °, but allows deviations of + -10 °, i.e. the term "perpendicular" is understood to mean an angle between any two directions of 80 ° to 100 °. Similarly, the term "parallel" throughout this application does not necessarily require an angle of 0 ° or 180 ° between the two directions, based on factors such as errors, but rather allows a deviation of ±10°, i.e. the term "parallel" is understood to mean an angle of 0 ° to 10 ° or 170 ° to 190 ° between any two directions.

Two metal probes 13 are provided on the elevating table 12 and are movable on the elevating table 12 in a first direction x to be in contact with electrodes (e.g., electrode posts) 21 of the battery 2.

In the implementation shown in fig. 1 to 4, the lifting platform 12 includes a platform body 121, two connecting pieces 122 and a sliding piece 123, the two connecting pieces 122 and the sliding piece 123 are disposed on the platform body 121, one end of each connecting piece 122 is connected with the sliding piece 123, and each connecting piece 122 can reciprocate along the first direction x relative to the platform body 121. For example, the sliding member 123 may be a sliding rail, one end of each connecting member 122 is provided with a sliding slot, and the two connecting members 122 are engaged with one sliding rail through the respective sliding slots, so that each connecting member 122 can slide back and forth along the first direction x on the platform 121, and thus the distance between the two connecting members 122 can be adjusted to adapt to the distance between the electrodes 21 of the batteries 2 of different types. Each of the connectors 122 may be individually movable so that each of the metal probes 13 may be individually adjusted in position relative to the test bed 10.

Alternatively, each of the connection members 122 is a telescopic member that is telescopic in the third direction z, so that the distance between the two metal probes 13 and the battery 2 in the third direction z can be changed.

Optionally, as shown in fig. 1 and 4, the sliding member 123 may be provided with a positioning identifier 1231 for positioning (for example, when the connecting member 122 drives the corresponding metal probe 13 to move to a position of a positioning identifier 1231, the positioning identifier 1231 may fix the connecting member 122 relatively to the position to prevent the connecting member 122 from shifting), and identify the distance between the two metal probes 13, so that a tester can quickly know whether the distance between the two metal probes 13 matches the distance between the electrodes 21 of the battery 2 of the current model to be tested, which is beneficial for quickly moving the metal probes 13 to the desired position.

The other end of each connecting piece 122 extends out of the table body 121, and two metal probes 13 are respectively arranged on the corresponding connecting piece 122 and face the bearing area of the test table 10. Here, the orthographic projections of both metal probes 13 extend beyond the orthographic projection of the elevating table 12, as viewed in the second direction y.

The drive mechanism 14 may drive the lift table 12 to move in a second direction y relative to the guide bar 11, e.g., in the placement orientation of fig. 2 and 3, the lift table 12 may be driven to move downward relative to the guide bar 11.

In one implementation, the driving mechanism 14 may be disposed on the table body 121 of the lifting platform 12 and located on a side of the lifting platform 12 facing away from the bearing area, for example, an upper side of the table body 121 in the placement orientation shown in fig. 1 to 3. In a practical scenario, the driving mechanism 14 may be two linear bearings, and the two linear bearings are respectively sleeved on the corresponding guide rods 11. The linear bearing is rotated to enable the linear bearing to move downwards along the guide rod 11, so that the lifting table 12 and the two metal probes 13 on the lifting table are correspondingly driven to move downwards.

For the battery testing device 1 of the embodiment of the application, the battery 2 is placed on the test stand 10, the two metal probes 13 are arranged on the lifting stand 12, the driving mechanism 14 can drive the lifting stand 12 to drive the two metal probes 13 to reach the preset position above the battery 2, and the two metal probes 13 are adjusted to move on the lifting stand 12 along the first direction x so as to be in contact with the electrode 21 of the battery 2, so that the battery 2 can be tested in a related manner, and the test type and content can be determined according to actual requirements, such as charge and discharge tests. Compared with the prior art, the battery testing device 1 is simple to operate for testing the battery 2, the efficiency is improved, the cost is reduced, the other two metal probes 13 are in contact with the electrode 21 of the battery 2, force towards the test bench 10 can be applied to the battery 2, the battery 2 can be fixed on the test bench 10, the risk of dumping the battery 2 is reduced, and therefore potential safety hazards caused by dumping can be reduced.

Alternatively, the table body 121 of the lifting table 12 may be provided with a handle 124, for example, after the battery 2 is tested, the test person may move the lifting table 12 and the two metal probes 13 upward by rotating the linear bearing to move the linear bearing upward along the guide rod 11 through the handle 124 so as to perform the next test.

The guide bar 11 may be provided with a blocking portion for abutting and blocking continued movement of the lift table 12 towards the test table 10. Referring to the implementation shown in fig. 1 to 4, the guide rod 11 includes two parts, a first part 111 allowing the lifting platform 12 to move upwards or downwards, and a second part 112 being the end of the guide rod 11 facing the test platform 10 (referred to as the lower end of the guide rod 11), the diameter of the second part 112 being larger than the diameter of the first part 111, so that the second part 112 forms a blocking part, or the junction of the second part 112 and the first part 111 forms a blocking part. In the second direction y, the height of the barrier (exemplified by the distance between the second portion 112 and the test bench 10) is H ₁ The height of the metal probe 13 between the lifting table 12 and the test table 10 is H ₂ (not shown), and H ₁ >H ₂ Thereby avoiding damage to the metal probe 13 when the metal probe 13 contacts the bearing surface of the test bench 10 when the guide bar 11 reaches the lowest position downwards. In addition, the thicker second portion 112 can also improve the stability of the combination of the guide rod 11 and the test stand 10, thereby improving the placement stability of the battery detection device 1 as a whole.

It should be understood that the battery detection device 1 of the present application may further include other structural elements, such as a top plate 113, where the top plate 113 is disposed on top of the guide rod 11 to block the linear bearing 14 from further moving upward and out of the guide rod 11 when reaching the maximum position.

In addition, the type and size adaptability of the battery 2 that can be detected by the battery detection device 1 are different depending on the size setting of each of the above-described structural elements. For example, in one scenario, the battery 2 that the battery detection device 1 can detect is of the size: the thickness (length in the third direction z) of the compatible battery 2 is 50 to 60mm; the length of the compatible battery 2 (length in the first direction x) is 148mm or 173mm; the height (length in the second direction y) of the compatible battery 2 is 102mm, 145mm or 204mm; the adjustable range of the two metal probes 13 in the second direction y may be greater than 105mm.

Example 2

On the basis of the description of embodiment 1, the difference is that the battery detection device 1 of embodiment 2 is only provided with one metal probe 13, and correspondingly, the lifting platform 12 is only provided with one connecting piece 122, and the connection relationship and the working process thereof can be referred to the corresponding description of embodiment 1, which is not repeated herein.

In embodiment 2, the battery 2 having the electrode posts 21 disposed at opposite ends (in the second direction y) can be tested, and the single metal probe 13 is in contact with the electrode post 21 disposed above the battery 2, and the electrode post 21 disposed below the battery 2 can be in contact with a conductive member disposed on the test stand 10, for example.

The foregoing description is only a partial embodiment of the present application and is not intended to limit the scope of the patent application, and it is intended that all equivalent structural modifications made by those skilled in the art using the present description and accompanying drawings be included in the scope of the patent application.

Although the terms first, second, etc. are used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. In addition, the singular forms "a", "an" and "the" are intended to include the plural forms as well. The terms "or" and/or "are to be construed as inclusive, or mean any one or any combination. An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.

Claims

1. A battery testing apparatus, comprising:

the test board is provided with a bearing area for bearing the battery;

the guide rod is arranged on the test bench and extends along the second direction;

the lifting platform is arranged on the guide rod;

a metal probe disposed on the elevating table and movable on the elevating table in a first direction to contact an electrode of the battery, the first direction being perpendicular to the second direction;

the driving mechanism can drive the lifting platform to move along the second direction relative to the guide rod.

2. The battery testing device of claim 1, wherein the orthographic projection of the metal probe extends beyond the orthographic projection of the lift table in the second direction.

3. The battery testing device of claim 2, wherein the lifting platform comprises a platform body, a connecting piece and a sliding piece, wherein the connecting piece and the sliding piece are arranged on the platform body, one end of the connecting piece is connected with the sliding piece so that the connecting piece can move along the first direction relative to the platform body, the other end of the connecting piece extends out of the platform body, and the metal probe is arranged on the connecting piece and faces the bearing area.

4. The battery testing device of claim 3, wherein the sliding member comprises a sliding rail, and one end of the connecting member is provided with a sliding groove engaged with the sliding rail.

5. The battery testing device of claim 3 or 4, wherein the slide is provided with positioning marks for positioning and marking the distance between the metal probes.

6. The battery testing device of claim 3, wherein the connector is a retractable member that is retractable in a third direction, the first direction, and the second direction being perpendicular to each other.

7. The battery testing device of claim 1, wherein the drive mechanism is disposed on the lift table and on a side of the lift table facing away from the load-bearing area.

8. The battery testing device of claim 7, wherein the drive mechanism comprises a linear bearing, the linear bearing being sleeved on the guide rod.

9. The battery testing device according to claim 1, wherein the battery testing device comprises two guide rods arranged opposite to each other along the first direction, and the two guide rods are respectively arranged at two ends of the lifting platform along the first direction in a penetrating manner.

10. The battery testing device according to claim 1, wherein the guide bar is provided with a blocking portion for abutting and blocking the elevating table from moving toward the test table;

in the second direction, the height of the blocking part is H ₁ The height of the metal probe between the lifting table and the test table is H ₂ And H is ₁ >H ₂ 。