Battery performance test tool

Abstract

The utility model belongs to the field of battery detection, and particularly relates to a battery performance testing tool which comprises a bottom plate and a movable plate arranged above the bottom plate through a lifting assembly, a containing space used for containing a to-be-tested battery is formed between the movable plate and the bottom plate, and the distance between the movable plate and the bottom plate is adjustable under the action of the lifting assembly. Therefore, to-be-tested batteries with different heights can be adapted. The two probe assemblies used for being in contact with the positive pole and the negative pole of the battery to be tested are arranged on the movable plate in a spaced mode, and the distance between the two probe assemblies is adjustable so as to adapt to the distance between the positive pole and the negative pole of batteries of different specifications. The battery performance test tool can meet the test performance of batteries with different models and sizes, especially batteries with different heights and different distances between positive and negative pole columns. Welding is not needed in the testing process, operation is easy, damage to the battery is avoided, and the tested battery meets the degradation use standard to a certain extent.

Description

Technical Field

[0001] This application relates to the field of battery testing technology, and in particular to a battery performance testing fixture. Background Technology

[0002] With the rapid development of the new energy industry, lithium-ion batteries are being used in all aspects of our lives. The rapid development of lithium batteries has brought us a lot of convenience and made a significant contribution to global environmental protection.

[0003] Batteries are judged based on their quality and grade based on indicators such as long-term and short-term performance. Short-term performance mainly includes battery capacity, rate capability, high and low temperature discharge performance, and safety performance. Currently, electrical performance testing equipment comes in various forms and is quite diverse. The most common testing method in the industry is to weld different types of connecting pieces to the battery terminals and then connect them to an external circuit for electrical performance testing. This method requires expensive equipment for welding the connecting pieces, requires specialized personnel for welding, is too cumbersome, and is also a destructive test. Batteries that have undergone this test cannot be downgraded for use. Utility Model Content

[0004] This application provides a battery performance testing fixture designed to achieve solder-free testing, which is simple to operate and will not damage the battery. After testing, the battery meets the standards for degrading to a certain extent.

[0005] To achieve the above objectives, this application provides a battery performance testing fixture, comprising:

[0006] Base plate;

[0007] A movable plate, positioned above the base plate via a lifting assembly, forms an accommodating space between the movable plate and the base plate for accommodating the battery under test. The movable plate can move closer to or further away from the base plate under the action of the lifting assembly.

[0008] Two probe assemblies are spaced apart on the movable plate, and the distance between the two probe assemblies is adjustable. Each probe assembly has a probe for contacting the terminal of the battery under test, and the probe is located on the side of the movable plate facing the base plate.

[0009] Optionally, the movable plate is provided with a strip-shaped through hole, and the probe assembly further includes a slider and a connector. The slider is slidably connected to the strip-shaped through hole and can slide along the length direction of the strip-shaped through hole. One end of the connector is connected to the slider, and the other end passes downward through the strip-shaped through hole and is connected to the probe.

[0010] Optionally, the connector includes a spring, with its opposite ends fixedly connected to the slider and the probe, respectively.

[0011] Optionally, the probe assembly further includes an indicator rod. The slider has a through hole along its vertical direction. The lower end of the indicator rod is fixedly connected to the probe. The upper end of the indicator rod passes through the through hole and extends upward. The outer wall of the indicator rod is provided with a marking portion. When the probe is not in contact with the terminal of the battery under test, the marking portion is located inside the through hole. When the probe abuts against the terminal of the battery under test and compresses the spring, the indicator rod can be pushed upward so that the marking portion is exposed outside the through hole.

[0012] Optionally, the outer diameter of the indicator rod is smaller than the inner diameter of the spring, and the indicator rod is coaxially arranged with the spring.

[0013] Optionally, the lifting assembly includes multiple vertically arranged studs, the lower ends of which are evenly fixed to the base plate along the edge of the base plate. The movable plate is provided with multiple through holes corresponding to the studs one by one, the upper ends of which pass through the multiple through holes on the movable plate one by one, and each stud is screwed with an adjusting nut at both the upper and lower ends of the movable plate.

[0014] Optionally, both the base plate and the movable plate are rectangular plates, the lifting assembly includes four studs, the lower ends of the four studs are respectively fixed at the four corners of the base plate, and the four through holes are respectively provided at the four corners of the movable plate.

[0015] The beneficial effects of the battery performance testing fixture provided in this application are as follows: Compared with the prior art, the battery performance testing fixture of this application includes a base plate and a movable plate mounted above the base plate via a lifting assembly. A accommodating space for accommodating the battery under test is formed between the movable plate and the base plate. Under the action of the lifting assembly, the distance between the movable plate and the base plate is adjustable to accommodate batteries of different heights. Two probe assemblies for contacting the positive and negative terminals of the battery under test are spaced apart on the movable plate, and the distance between the two probe assemblies is adjustable to accommodate the spacing between the positive and negative terminals on batteries of different specifications. This battery performance testing fixture can meet the testing performance requirements of batteries of different models and sizes, especially batteries with different heights and different spacing between the positive and negative terminals.

[0016] In practical use, the battery under test is placed on the base plate. The height of the movable plate is adjusted using the lifting assembly, and the spacing between the two probe assemblies on the movable plate is also adjusted so that the probes in the two probe assemblies are aligned with the positive and negative terminals of the battery under test, respectively. As the movable plate is pressed down, the probes gradually contact and press against the terminals. Then, the lifting assembly is locked, and the external circuit can be connected for performance testing. No soldering is required during the testing process, the operation is simple, and it will not damage the battery. After testing, the battery meets the degradation standards to a certain extent. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] in:

[0019] Figure 1 This is a schematic diagram of the overall structure of a battery performance testing fixture shown in one embodiment of this application;

[0020] Figure 2 This is a cross-sectional view of a battery performance testing fixture according to an embodiment of this application;

[0021] Figure 3 This is an exploded view of a battery performance testing fixture shown in one embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the probe assembly in a battery performance testing fixture according to an embodiment of this application;

[0023] Figure 5 This is an exploded view of the probe assembly in a battery performance testing fixture, as shown in one embodiment of this application.

[0024] Explanation of key component symbols:

[0025] 100. Base plate;

[0026] 200. Movable plate; 201. Strip through hole; 202. Via hole;

[0027] 300. Lifting assembly; 310. Stud; 320. Adjusting nut;

[0028] 400, probe assembly; 410, probe; 420, slider; 421, through hole; 430, connector; 440, indicator rod; 441, marking part. Detailed Implementation

[0029] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0033] It should also be noted that in the embodiments of this application, the same reference numerals are used to represent the same component or part. For the same part in the embodiments of this application, the reference numerals may only be used to mark one part or component as an example. It should be understood that the reference numerals are also applicable to other identical parts or components.

[0034] As described in the background section, existing battery performance testing methods involve soldering different types of connectors onto the battery terminals and then connecting them to an external circuit for electrical performance testing. This method requires expensive equipment for soldering the connectors, necessitates specialized personnel for the soldering process, is overly cumbersome, and is a destructive test; batteries tested cannot be downgraded for use.

[0035] To address the aforementioned problems, embodiments of this application provide a battery performance testing fixture, such as... Figures 1-2As shown, the battery performance testing fixture includes a base plate 100, a movable plate 200, and two probe assemblies 400. The movable plate 200 is positioned above the base plate 100 via a lifting assembly 300, forming a space between the movable plate 200 and the base plate 100 to accommodate the battery under test. The movable plate 200 can move closer to or further away from the base plate 100 under the action of the lifting assembly 300, thus accommodating batteries of different heights. The two probe assemblies 400 are spaced apart on the movable plate 200, and the distance between the two probe assemblies 400 is adjustable, thus accommodating the spacing between the positive and negative terminals on batteries of different specifications. Each probe assembly 400 has a probe 410 for contacting the terminals of the battery under test, and the probe 410 is located on the side of the movable plate 200 facing the base plate 100.

[0036] In practical use, the battery to be tested is placed on the base plate 100. The height of the movable plate 200 is adjusted using the lifting assembly 300, and the distance between the two probe assemblies 400 on the movable plate 200 is adjusted so that the probes 410 in the two probe assemblies 400 are respectively aligned with the positive and negative terminals of the battery to be tested. As the movable plate 200 is pressed down, the probes 410 gradually contact and press against the terminals. Then the lifting assembly 300 is locked, and the external circuit can be connected to conduct battery performance testing.

[0037] In this embodiment, the battery performance testing fixture can meet the testing performance requirements of batteries of different models and sizes, especially batteries with different heights and different spacing between positive and negative terminals. The testing process requires no welding, is simple to operate, and does not damage the battery. The tested batteries meet the standards for degraded use to a certain extent.

[0038] In one embodiment, such as Figures 1-2 As shown, the movable plate 200 is provided with a strip-shaped through hole 201. The probe assembly 400 also includes a slider 420 and a connector 430. The slider 420 is slidably connected to the strip-shaped through hole 201 and can slide along the length direction of the strip-shaped through hole 201. One end of the connector 430 is connected to the slider 420, and the other end passes downward through the strip-shaped through hole 201 and is connected to the probe 410.

[0039] The movement of the entire probe assembly 400 relative to the movable plate 200 is achieved by the cooperation of the slider 420 with the strip-shaped through hole 201 on the movable plate 200, thereby adjusting the distance between the two probe assemblies 400. The structure is simple and the adjustment is convenient.

[0040] In one specific embodiment, such as Figures 2-4As shown, the connector 430 includes a spring, with its two ends fixedly connected to the slider 420 and the probe 410, respectively. By using a spring as the connector 430 between the slider 420 and the probe 410, the spring can be compressed and undergo elastic deformation during the process of the movable plate 200 pressing down and the probe 410 abutting against the pole post, preventing excessive pressure between the probe 410 and the pole post from causing damage.

[0041] It is conceivable that in other embodiments, the slider 420 and the probe 410 can also be rigidly connected. Of course, using a spring to achieve an elastic connection is a more preferred solution.

[0042] In one specific embodiment, such as Figure 2 and Figure 5 As shown, the probe assembly 400 also includes an indicator rod 440. A through hole 421 is vertically provided on the upper edge of the slider 420. The lower end of the indicator rod 440 is fixedly connected to the probe 410. The upper end of the indicator rod 440 passes through the through hole 421 and extends upward. A marking part 441 is provided on the outer wall of the indicator rod 440. When the probe 410 is not in contact with the terminal of the battery under test, the marking part 441 is located inside the through hole 421. When the probe 410 abuts against the terminal of the battery under test and compresses the spring, the indicator rod 440 can be pushed upward so that the marking part 441 is exposed outside the through hole 421.

[0043] Preferably, the outer diameter of the indicator rod 440 is smaller than the inner diameter of the spring, and the indicator rod 440 is coaxially arranged with the spring.

[0044] With this configuration, during use, when the probe 410 gradually contacts the terminal and the spring between the probe 410 and the slider 420 is compressed, the indicator rod 440 is pushed upward. When the mark part 441 on the indicator rod 440 is exposed, it indicates that the probe 410 is in good contact with the battery terminal, avoiding test errors caused by abnormal contact. Then, the lifting assembly 300 is locked, and the external circuit can be connected to conduct battery performance testing.

[0045] Specifically, the marking part 441 may be a ring-shaped coating with a bright red or yellow color.

[0046] In some embodiments, such as Figures 1-3 As shown, the lifting assembly 300 includes multiple vertically arranged studs 310. The lower ends of the studs 310 are evenly fixed to the base plate 100 along the edge of the base plate 100. The movable plate 200 is provided with multiple through holes 202 that correspond one-to-one with the studs 310. The upper ends of the studs 310 pass through the multiple through holes 202 on the movable plate 200. Each stud 310 is screwed with an adjusting nut 320 at both the upper and lower ends of the movable plate 200.

[0047] As described above, the lifting assembly 300 allows for height adjustment of the movable plate 200 by adjusting the position of the adjusting nut 320 on the stud 310. It is conceivable that the lifting assembly 300 could also employ vertically arranged electric or pneumatic cylinders. There could be one or more electric or pneumatic cylinders, with the cylinder body fixed to the base plate 100 and the piston rod fixed to the movable plate 200.

[0048] In some specific embodiments, such as Figure 1 and Figure 3 As shown, both the base plate 100 and the movable plate 200 are rectangular plates. The lifting assembly 300 includes four studs 310, the lower ends of which are fixed to the four corners of the base plate 100. Four through holes 202 are respectively located at the four corners of the movable plate 200. This configuration allows the area between the four studs 310 to hold the battery under test. The four corners of the movable plate 200 are connected to the four studs 310, ensuring that the probes 410 of the probe assembly 400 are pressed against the battery terminals, resulting in a more even distribution of force on the movable plate 200.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A battery performance testing fixture, characterized in that, include: Base plate; An movable plate is positioned above the base plate via a lifting assembly, forming an accommodating space between the movable plate and the base plate for accommodating the battery to be tested. The movable plate can move closer to or further away from the base plate under the action of the lifting assembly. as well as Two probe assemblies are spaced apart on the movable plate, and the distance between the two probe assemblies is adjustable. Each probe assembly has a probe for contacting the terminal of the battery under test, and the probe is located on the side of the movable plate facing the base plate.

2. The battery performance testing fixture according to claim 1, characterized in that, The movable plate is provided with a strip-shaped through hole. The probe assembly also includes a slider and a connector. The slider is slidably connected to the strip-shaped through hole and can slide along the length direction of the strip-shaped through hole. One end of the connector is connected to the slider, and the other end passes downward through the strip-shaped through hole and is connected to the probe.

3. The battery performance testing fixture according to claim 2, characterized in that, The connector includes a spring, with its opposite ends fixedly connected to the slider and the probe, respectively.

4. The battery performance testing fixture according to claim 3, characterized in that, The probe assembly also includes an indicator rod. A through hole is provided vertically along the upper edge of the slider. The lower end of the indicator rod is fixedly connected to the probe. The upper end of the indicator rod passes through the through hole and extends upward. A marking part is provided on the outer wall of the indicator rod. When the probe is not in contact with the terminal of the battery under test, the marking part is located inside the through hole. When the probe abuts against the terminal of the battery under test and compresses the spring, the indicator rod can be pushed upward so that the marking part is exposed outside the through hole.

5. The battery performance testing fixture according to claim 4, characterized in that, The outer diameter of the indicator rod is smaller than the inner diameter of the spring, and the indicator rod and the spring are coaxially arranged.

6. The battery performance testing fixture according to any one of claims 1-5, characterized in that, The lifting assembly includes multiple vertically arranged studs. The lower ends of the studs are evenly fixed to the base plate along the edge of the base plate. The movable plate is provided with multiple through holes corresponding to the studs. The upper ends of the studs pass through the multiple through holes on the movable plate. Each stud is screwed with an adjusting nut at both the upper and lower ends of the movable plate.

7. The battery performance testing fixture according to claim 6, characterized in that, Both the base plate and the movable plate are rectangular plates. The lifting assembly includes four studs, the lower ends of which are fixed at the four corners of the base plate, and four through holes are respectively located at the four corners of the movable plate.

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