Square battery detection device

Abstract

The utility model discloses a square battery detection device, and relates to the technical field of detection devices. A detection cavity is formed in the box body. The weight detection part is arranged in the detection cavity and is used for detecting the weight of the to-be-detected part placed in the detection cavity; and the OCV detection assembly is arranged at the top of the detection cavity and can be connected to an electrode of the to-be-detected piece so as to detect the internal resistance and the voltage of the to-be-detected piece. The utility model aims to measure a plurality of parameters of a square battery in one device, simplify the measurement process and shorten the measurement time.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, and particularly relates to a square battery detection device. Background Art

[0002] In recent years, with the global emphasis on environmental protection and energy sustainable development, the new energy vehicle industry has risen rapidly and become a key development area for governments and enterprises of various countries. As the core component of new energy vehicles, the performance of power batteries directly determines the cruising range, safety and user experience of the whole vehicle. Therefore, the research and development and production of power batteries have become the focus of competition among major enterprises. The main types of power batteries include square batteries, cylindrical batteries and soft-pack batteries. Among them, square batteries are widely used in the field of electric vehicles due to their high energy density, stable structure, good heat dissipation performance and other advantages.

[0003] In the production process of power batteries, the measurement of battery size and performance parameters is a key link to ensure battery quality. Specifically, before leaving the factory, square batteries need to be measured for multiple parameters such as thickness, weight, voltage and internal resistance to ensure that the performance of each battery meets the standard, so as to ensure the safety and reliability of the whole vehicle.

[0004] Traditional lithium battery production lines use independent measuring instruments to measure the parameters of square batteries. Although independent measuring instruments can improve the measurement accuracy and efficiency, their cost is high, and a large amount of production space is required. Independent measuring instruments generally can only measure a single parameter and it is difficult to achieve synchronous measurement of multiple parameters, resulting in a cumbersome and time-consuming measurement process. At the same time, the data processing and transmission of independent measuring instruments require additional system support, increasing the complexity and maintenance cost of the production line.

[0005] Therefore, how to measure multiple parameters of square batteries in one device, simplify the measurement process and shorten the measurement time has become a technical problem to be solved urgently. Summary of the Utility Model

[0006] The main purpose of the utility model is to provide a square battery detection device, aiming to measure multiple parameters of square batteries in one device, simplify the measurement process and shorten the measurement time.

[0007] To achieve the above purpose, the utility model proposes a square battery detection device, including

[0008] A box body, which forms a detection cavity inside;

[0009] A weight detection piece, which is arranged in the detection cavity and is used for detecting the weight of the piece to be detected placed in the detection cavity; and

[0010] The OCV detection component is provided at the top of the detection cavity and can be connected to the electrodes of the component to be detected, so as to detect the internal resistance and voltage of the component to be detected.

[0011] All components are completed within a box, saving space and facilitating operation and maintenance. The weight detection component and the OCV detection component are responsible for detecting weight and electrical performance respectively, ensuring the accuracy of the detection results. This device can not only detect the weight of the battery, but also detect its voltage and internal resistance, providing a comprehensive battery performance analysis. The closed design of the detection cavity can protect the operator from the possible leakage or explosion risks of the battery.

[0012] In an embodiment of the present application, the OCV detection component includes:

[0013] A telescopic member, connected to the top of the detection cavity;

[0014] A support plate, connected to the telescopic shaft of the telescopic member and capable of telescopic movement along with the telescopic shaft of the telescopic member; and

[0015] A positive probe, connected to the bottom of the support plate and capable of keeping in contact with or disengaging from the positive electrode of the component to be detected along with the lifting movement of the support plate;

[0016] A negative probe, connected to the bottom of the support plate and capable of keeping in contact with or disengaging from the negative electrode of the component to be detected along with the lifting movement of the support plate.

[0017] The telescopic movement of the telescopic member can accurately control the height of the support plate, thereby ensuring that the positive probe and the negative probe can accurately contact the positive and negative electrodes of the component to be detected, improving the detection accuracy. The support plate is made of lightweight but strong aluminum alloy or stainless steel material, which can remain stable during long-term use and is not easily deformed, thus ensuring the stability of the detection process. The positive probe and the negative probe are made of highly conductive metal materials, which can ensure the stability of electrical connection and the accuracy of detection, reducing the influence of resistance on the detection results. The entire system realizes automatic operation through an electric or pneumatic telescopic member, reducing manual intervention and improving the detection efficiency and consistency.

[0018] In an embodiment of the present application, a sliding groove is further provided at the bottom of the support plate, and both the positive probe and the negative probe are connected in the sliding groove, and the positive probe and the negative probe can approach or move away from each other along the length direction of the sliding groove.

[0019] The sliding groove design enables the positive probe and the negative probe to be flexibly adjusted in position to meet different usage requirements. This design is particularly suitable for application scenarios that require frequent adjustment of the probe spacing, such as battery tests of different specifications. The guide rail structure of the sliding groove ensures that the probe remains stable during sliding, reduces the problem of poor contact caused by changes in the probe position, and improves the reliability of the device.

[0020] In an embodiment of the present application, a through hole penetrating the inner and outer spaces of the box body is provided at the top of the box body, and a limiting column is provided at the top of the support plate. When the telescopic shaft of the telescopic member moves downward to the maximum stroke, the free end of the limiting column is located in the through hole.

[0021] By providing a through hole penetrating the inner and outer spaces at the top of the box body and a limiting column at the top of the support plate, the rotation of the support plate can be effectively restricted, ensuring the accuracy and reliability of the movement.

[0022] In an embodiment of the present application, a size detection component for detecting the size of the workpiece to be detected is further provided in the detection cavity.

[0023] In an embodiment of the present application, the size detection component includes:

[0024] At least two driving members. When the number of driving members is two, the two driving members are respectively a first driving member and a second driving member that can record the extended length. The first driving member and the second driving member are both defined with a starting position and a maximum stroke distance. The first driving member and the second driving member are arranged oppositely to clamp the workpiece to be detected. When the first driving member and the second driving member reach their maximum distances, the first driving member and the second driving member are in contact with each other.

[0025] Through high-precision driving members and clamping mechanisms, accurate measurement of the workpiece to be detected can be achieved, improving the reliability of the detection results. The flexible adjustment ability of the driving members enables them to adapt to workpieces to be detected with different sizes and shapes, increasing the versatility of the device.

[0026] In an embodiment of the present application, a protective plate is provided at one end of the driving member close to the workpiece to be detected. The protective plate increases the contact area between the driving member and the workpiece to be detected and reduces damage to the workpiece to be detected.

[0027] In an embodiment of the present application, a control unit is further included, which is electrically connected to the OCV detection component and can adjust the voltage or current of the OCV to the voltage and / or current required for testing the workpiece to be detected.

[0028] The control unit can precisely adjust the voltage and current according to the specific requirements of the component to be detected, ensuring the accuracy and consistency of the test conditions. By precisely adjusting the voltage and current, test errors can be reduced, and the accuracy and reliability of the detection results can be improved. Appropriate voltage and current adjustment can prevent damage to the component to be detected caused by too high or too low voltage and current, thereby protecting the integrity and performance of the component to be detected.

[0029] In an embodiment of the present application, the telescopic member is a telescopic cylinder. The telescopic cylinder can achieve precise telescopic movement by adjusting the air pressure, and has a fast response speed, capable of quickly completing the telescopic action and improving work efficiency.

[0030] In an embodiment of the present application, the weight detection member is an electronic scale. The electronic scale has high-precision measurement capabilities and can accurately measure the weight of the component to be detected, ensuring the accuracy of the data.

[0031] Adopting the above technical solution, each component is completed within a box, saving space and facilitating operation and maintenance. The weight detection member and the OCV detection component are respectively responsible for detecting the weight and electrical performance, ensuring the accuracy of the detection results. This device can not only detect the weight of the battery, but also detect its voltage and internal resistance, providing a comprehensive analysis of the battery performance. The closed design of the detection cavity can protect the operator from the possible leakage or explosion risks of the battery. Description of the Drawings

[0032] The following will describe the present utility model in detail with reference to specific embodiments and drawings, where:

[0033] Figure 1 is a perspective structural schematic diagram of the first perspective of the first embodiment of the present utility model;

[0034] Figure 2 is a perspective structural schematic diagram of the second perspective of the first embodiment of the present utility model;

[0035] 10. Box body; 21. Telescopic member; 22. Support plate; 23. Limit post; 24. Positive probe; 25. Negative probe; 26. Sliding groove; 30. Weight detection member; 41. First driving member; 42. Second driving member; 50. Control unit; 60. Protection plate. Detailed Embodiments

[0036] In order to make the purpose, technical solution and advantages of the present utility model clearer, the following will describe the present utility model in detail with reference to the drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the present utility model and do not constitute a limitation to the present utility model.

[0037] As Figure 1As shown in the figure, to achieve the above object, the present utility model provides a square battery detection device, including

[0038] a box body 10, within which a detection cavity is formed;

[0039] a weight detection member 30, disposed within the detection cavity, for detecting the weight of a workpiece to be detected placed within the detection cavity; and

[0040] an OCV detection assembly, disposed at the top of the detection cavity, connectable to the electrodes of the workpiece to be detected, for detecting the internal resistance and voltage of the workpiece to be detected.

[0041] Specifically, the box body 10 is the basic structure of the entire device, and a detection cavity is formed inside. The box body 10 is made of a metal material, such as an aluminum alloy material, a alloy steel material, etc. The box body 10 made of a metal material has advantages such as strong supporting ability and wear resistance. Of course, according to the design requirements, the box body 10 can also be made of other strength materials, such as high-strength plastics. The box body 10 made of high-strength plastics has advantages such as light weight, low cost, and insulation. The internal space of the box body 10 is used as an area for placing the workpiece to be detected (i.e., the square battery).

[0042] The weight detection member 30 can be a high-precision electronic scale or sensor. The weight detection member 30 is installed at the bottom of the detection cavity, for measuring the weight of the workpiece to be detected placed thereon. The weight detection member 30 is fixedly connected to the box body 10 to ensure its stability and measurement accuracy.

[0043] The OCV (Open Circuit Voltage) detection assembly includes an electrode clamp and a measuring instrument, for measuring the open circuit voltage and internal resistance of the battery. The OCV detection assembly is installed at the top of the detection cavity. The OCV detection assembly is connected to the electrodes of the workpiece to be detected through the electrode clamp to achieve electrical measurement.

[0044] Adopting the above technical solution, each component is completed within a box, saving space and facilitating operation and maintenance. The weight detection member 30 and the OCV detection assembly are respectively responsible for detecting the weight and electrical performance, ensuring the accuracy of the detection results. This device can not only detect the weight of the battery, but also detect its voltage and internal resistance, providing a comprehensive battery performance analysis. The closed design of the detection cavity can protect the operator from the possible leakage or explosion risks of the battery.

[0045] In an embodiment of the present application, the OCV detection assembly includes:

[0046] a telescopic member 21, connected to the top of the detection cavity;

[0047] The support plate 22 is connected to the telescopic shaft of the telescopic member 21 and can move telescopically with the telescopic shaft of the telescopic member 21; and

[0048] The positive probe 24 is connected to the bottom of the support plate 22 and can keep in contact with or separate from the positive electrode of the device to be detected along with the lifting movement of the support plate 22;

[0049] The negative probe 25 is connected to the bottom of the support plate 22 and can keep in contact with or separate from the negative electrode of the device to be detected along with the lifting movement of the support plate 22.

[0050] Specifically, the OCV (Open Circuit Voltage) detection component mainly includes a telescopic member 21, a support plate 22, a positive probe 24 and a negative probe 25. Among them, the telescopic member 21 is connected to the top of the detection cavity, and its main function is to adjust the height of the support plate 22 through telescopic movement. The telescopic member 21 generally uses an electric telescopic rod or a pneumatic telescopic rod, which has high precision and stability.

[0051] The support plate 22 is connected to the telescopic shaft of the telescopic member 21 and can move up and down with the telescopic movement of the telescopic member 21. The material of the support plate 22 is usually selected as a light metal, such as aluminum alloy or stainless steel, to ensure its stability during movement.

[0052] Both the positive probe 24 and the negative probe 25 are connected to the bottom of the support plate 22 and can keep in contact with or separate from the positive and negative electrodes of the device to be detected along with the lifting movement of the support plate 22. The probes generally use highly conductive metal materials, such as copper or gold-plated copper, to ensure the accuracy and stability of detection.

[0053] Adopting the above technical solution, the telescopic movement of the telescopic member 21 can accurately control the height of the support plate 22, thereby ensuring that the positive probe 24 and the negative probe 25 can accurately contact the positive and negative electrodes of the device to be detected, improving the detection accuracy. The support plate 22 is made of light but strong aluminum alloy or stainless steel material, which can remain stable during long-term use and is not easy to deform, thus ensuring the stability of the detection process. The positive probe 24 and the negative probe 25 use highly conductive metal materials, which can ensure the stability of electrical connection and the accuracy of detection, reducing the influence of resistance on the detection result. The entire system realizes automatic operation through the electric or pneumatic telescopic member 21, reduces manual intervention, and improves the detection efficiency and consistency.

[0054] As Figure 2 shown, in an embodiment of the present application, a sliding groove 26 is further provided at the bottom of the support plate 22, both the positive probe 24 and the negative probe 25 are connected in the sliding groove 26, and the positive probe 24 and the negative probe 25 can approach or move away from each other along the length direction of the sliding groove 26.

[0055] Specifically, a sliding groove 26 is provided at the bottom of the support plate 22 for the installation and movement of the positive probe 24 and the negative probe 25. The sliding groove 26 is located at the bottom of the support plate 22 and extends along the length direction. The design of the sliding groove 26 allows the positive probe 24 and the negative probe 25 to move along its length direction, thereby realizing the adjustment of the relative position between the two. The positive probe 24 and the negative probe 25 are respectively installed in the sliding groove 26, and through the guide rail structure of the sliding groove 26, they can slide in the sliding groove 26. The probe is a slender metal rod, and the end is designed with a specific contact point to ensure the stability of the electrical connection.

[0056] With the above technical solution, the design of the sliding groove 26 enables the positive probe 24 and the negative probe 25 to flexibly adjust their positions to meet different usage requirements. This design is particularly suitable for application scenarios that require frequent adjustment of the probe spacing, such as the testing of batteries with different specifications. The guide rail structure of the sliding groove 26 ensures that the probes remain stable during sliding, reducing the problem of poor contact caused by changes in the probe position and improving the reliability of the device.

[0057] In an embodiment of the present application, a through hole penetrating the inner and outer spaces of the box body 10 is provided at the top of the box body 10, and a limiting column 23 is provided at the top of the support plate 22. When the telescopic shaft of the telescopic member 21 moves downward to the maximum stroke, the free end of the limiting column 23 is located in the through hole.

[0058] Specifically, a through hole penetrating the inner and outer spaces of the box body 10 is provided at the top of the box body 10. A limiting column 23 is provided at the top of the support plate 22. When the telescopic shaft of the telescopic member 21 moves downward to the maximum stroke, the free end of the limiting column 23 is located in the through hole, thereby restricting the rotation of the support plate 22.

[0059] With the above technical solution, by providing a through hole penetrating the inner and outer spaces at the top of the box body 10 and providing a limiting column 23 at the top of the support plate 22, the rotation of the support plate 22 can be effectively restricted, ensuring the accuracy and reliability of the movement.

[0060] In an embodiment of the present application, a size detection component for detecting the size of the object to be detected is further provided in the detection cavity.

[0061] Specifically, the size detection component can be a laser rangefinder, an optical measurement system, etc.

[0062] When the size detection component is a laser rangefinder, it has high precision and fast response speed; non-contact measurement, which will not cause damage to the object to be measured.

[0063] Optical measurement systems (such as cameras and image processing technologies) can achieve multi-point and multi-dimensional measurements; they can combine image processing technologies to perform precise measurements of complex shapes and surfaces; non-contact measurement is safe and reliable.

[0064] In an embodiment of the present application, the size detection component includes:

[0065] At least two driving members. When the number of driving members is two, the two driving members are respectively a first driving member 41 and a second driving member 42 that can record the extended length. Both the first driving member 41 and the second driving member 42 are defined with a starting position and a maximum stroke distance. The first driving member 41 and the second driving member 42 are oppositely arranged to clamp the workpiece to be detected. When both the first driving member 41 and the second driving member 42 reach the maximum distance, the first driving member 41 and the second driving member 42 are in contact with each other.

[0066] Specifically, the first driving member 41 has the functions of extending and retracting and can record its extended length. The starting position is the position where the driving member is fully retracted, and the maximum stroke distance is the position where the driving member is fully extended.

[0067] The second driving member 42 is similar to the first driving member 41 and has the same functions and characteristics.

[0068] The two driving members are oppositely arranged so that they can clamp the workpiece to be detected during the extension process. The clamping process is achieved by the extension and retraction of the driving members.

[0069] The detailed detection process is as follows:

[0070] Ensure that the first driving member 41 and the second driving member 42 are in the starting position, that is, the two driving members are in the initial state and no extension operation has been performed.

[0071] Place the workpiece to be detected at the detection position between the first driving member 41 and the second driving member 42.

[0072] Start the driving system to move the first driving member 41 and the second driving member 42 towards the workpiece to be detected until both clamp the workpiece to be detected.

[0073] During the clamping process, record the extended lengths of the first driving member 41 and the second driving member 42. At this time, the non-extended lengths of the two driving members should be the width of the workpiece to be detected.

[0074] After completing the size detection, the driving system controls the first driving member 41 and the second driving member 42 to return to the starting position and release the workpiece to be detected.

[0075] With the above technical solution, through a high-precision driving member and a clamping mechanism, accurate measurement of the workpiece to be detected can be achieved, improving the reliability of the detection result. The flexible adjustment ability of the driving member enables it to adapt to workpieces to be detected with different sizes and shapes, increasing the versatility of the device.

[0076] In an embodiment of the present application, a protective plate 60 is provided at one end of the driving member close to the workpiece to be detected.

[0077] With the above technical solution, the protective plate 60 increases the contact area between the driving member and the workpiece to be detected, reducing damage to the workpiece to be detected.

[0078] In an embodiment of the present application, a control unit 50 is further included, electrically connected to the OCV detection component, and capable of adjusting the voltage or current of the OCV to the voltage and / or current required for testing the workpiece to be detected.

[0079] With the above technical solution, the control unit 50 can accurately adjust the voltage and current according to the specific requirements of the workpiece to be detected, ensuring the accuracy and consistency of the test conditions. By accurately adjusting the voltage and current, test errors can be reduced, improving the accuracy and reliability of the detection result. Appropriate adjustment of the voltage and current can prevent damage to the workpiece to be detected caused by too high or too low voltage and current, thus protecting the integrity and performance of the workpiece to be detected.

[0080] In an embodiment of the present application, the telescopic member 21 is a telescopic cylinder.

[0081] With the above technical solution, the telescopic cylinder can achieve precise telescopic movement by adjusting the air pressure, and has a fast response speed, capable of quickly completing the telescopic action and improving work efficiency.

[0082] In an embodiment of the present application, the weight detection member 30 is an electronic scale.

[0083] With the above technical solution, the electronic scale has high-precision measurement ability, capable of accurately measuring the weight of the workpiece to be detected and ensuring the accuracy of the data.

[0084] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A square battery detection device, characterized in that, including a box body, within which a detection cavity is formed; a weight detection member, disposed within the detection cavity, for detecting the weight of a workpiece to be detected placed within the detection cavity; and an OCV detection assembly, disposed at the top of the detection cavity, connectable to the electrodes of the workpiece to be detected, for detecting the internal resistance and voltage of the workpiece to be detected.

2. The square battery detection device according to claim 1, characterized in that The OCV detection assembly includes: a telescopic member, connected to the top of the detection cavity; a support plate, connected to the telescopic shaft of the telescopic member, and capable of telescopic movement along with the telescopic shaft of the telescopic member; and a positive probe, connected to the bottom of the support plate, and capable of maintaining contact with or disengaging from the positive electrode of the workpiece to be detected along with the lifting movement of the support plate; a negative probe, connected to the bottom of the support plate, and capable of maintaining contact with or disengaging from the negative electrode of the workpiece to be detected along with the lifting movement of the support plate.

3. The square battery detection device according to claim 2, wherein A sliding groove is further provided at the bottom of the support plate, and both the positive probe and the negative probe are connected within the sliding groove, and the positive probe and the negative probe can approach or move away from each other along the length direction of the sliding groove.

4. The square battery detection device according to claim 2, wherein, A through hole penetrating the internal and external spaces of the box body is provided at the top of the box body, and a limiting post is provided at the top of the support plate. When the telescopic shaft of the telescopic member moves downward to the maximum stroke, the free end of the limiting post is located within the through hole.

5. The square battery detection device according to any one of claims 1 to 4, characterized in that, A dimension detection assembly for detecting the dimensions of the workpiece to be detected is further provided within the detection cavity.

6. The square battery detection device according to claim 5, wherein, The dimension detection assembly includes: at least two driving members. When the number of driving members is two, the two driving members are respectively a first driving member and a second driving member capable of recording the extended length. Both the first driving member and the second driving member are defined with a starting position and a maximum stroke distance. The first driving member and the second driving member are oppositely arranged to clamp the workpiece to be detected. When both the first driving member and the second driving member reach the maximum distance, the first driving member and the second driving member are in contact with each other.

7. The square battery detection device according to claim 6, wherein, A protective plate is provided at one end of the driving member close to the workpiece to be detected.

8. The square battery detection device according to claim 1, characterized in that, It further includes a control unit, electrically connected to the OCV detection assembly, capable of adjusting the voltage or current of the OCV to the voltage and / or current required for testing the workpiece to be detected.

9. The square battery detection device according to claim 2, wherein The telescopic member is a telescopic cylinder.

10. The square battery detection device according to claim 1, characterized in that, The weight detection member is an electronic scale.

Images