A lithium battery auxiliary testing device

Abstract

The application relates to a lithium battery auxiliary testing device, belonging to the technical field of lithium battery testing, which comprises a connecting plate and two conductive blocks fixed on the connecting plate, the two conductive blocks are close to each other, and are respectively connected with testing lines extending to a testing device, one end of the testing line away from the conductive block is plugged into the testing device, during testing, one hand can hold the red and black lines of the lithium battery and quickly place the red and black lines on the two close conductive blocks, a stable testing loop is established with the aid of the conductive blocks and the testing lines, core parameter detection of the voltage, internal resistance and capacity of the lithium battery is realized, while the one-hand docking operation is completed, the other hand can synchronously fix the red and black lines with adhesive tape, the testing operation steps are simplified, the difficulty of single-person operation is reduced, the overall efficiency of the lithium battery testing is effectively improved while the stability of the testing loop and the accuracy of the parameter detection are ensured.

Description

Technical Field

[0001] This application relates to the field of lithium battery testing technology, and in particular to an auxiliary testing device for lithium batteries. Background Technology

[0002] Lithium batteries, with their outstanding advantages such as high energy density, long cycle life, and environmental friendliness, have been widely used in many key fields such as consumer electronics, new energy vehicles, energy storage systems, low-altitude economy and aerospace, and industrial equipment. They have become the core energy component of various modern electronic devices and power systems. To ensure the performance stability, safety, and reliability of lithium batteries in actual applications after they leave the factory, their core electrical performance parameters, such as voltage, internal resistance, and capacity, must be strictly tested by professional testing equipment before leaving the factory. This testing process requires establishing a circuit connection between the testing equipment and the lithium battery through the red and black wires of the lithium battery to achieve accurate data acquisition and analysis.

[0003] In related technologies, lithium battery testing methods typically involve using testing equipment with two independent test probes. The tester manually and precisely places the end of one test probe against the red wire of the lithium battery, while simultaneously placing the end of the other test probe against the black wire. The red and black wire ends of the lithium battery are then fixed to the test probes at preset positions using tape. By establishing a complete test circuit, parameter detection is completed.

[0004] However, in the existing testing process, the operator must use both hands to hold and fix the two test probes to ensure stable contact between the test probes and the red and black lines. This makes the operation process cumbersome and completely occupies the operator's hands, increasing the difficulty of single-person operation. It also makes it impossible to perform auxiliary operations such as cutting tape simultaneously during the test, thus restricting the improvement of testing efficiency. Utility Model Content

[0005] To address the aforementioned issues, this application provides an auxiliary testing device for lithium batteries.

[0006] The lithium battery auxiliary testing device provided in this application adopts the following technical solution: it includes a connecting plate and two conductive blocks fixed on the connecting plate. The two conductive blocks are close to each other. The two conductive blocks are respectively connected to test lines extending to the testing equipment. The end of the test line away from the conductive block is plugged into the testing equipment.

[0007] By adopting the above technical solution, two conductive blocks are fixed on the connecting plate at a close distance, and the two conductive blocks are respectively connected to the test lines extending to the testing equipment. During testing, only one hand is needed to hold the red and black wires of the lithium battery and quickly place them on the two closely spaced conductive blocks. A stable test circuit can be established by connecting the conductive blocks and the test lines, enabling the detection of core parameters such as lithium battery voltage, internal resistance, and capacity. At the same time, since the connection operation between the red and black wires and the conductive blocks can be completed with one hand, the other hand can simultaneously perform the auxiliary operation of applying tape to fix the position of the red and black wires. This simplifies the testing operation steps, reduces the difficulty of single-person operation, and effectively improves the overall efficiency of lithium battery testing while ensuring the stability of the test circuit and the accuracy of parameter detection.

[0008] Preferably, the two conductive blocks are embedded and fixed on the connecting plate, and the two test lines pass through the side wall of the connecting plate and are fixedly connected to the conductive blocks.

[0009] By adopting the above technical solution, the embedded fixing can stably fix the conductive block on the connecting plate, reducing the problem of displacement and loosening of the conductive block when placing the red and black wires of the lithium battery with one hand during testing. It ensures stable contact between the red and black wires of the lithium battery and the conductive block. The test wires pass through the side wall of the connecting plate and are fixedly connected to the conductive block, reducing the problems of tangling and pulling caused by the mess of the test wires exposed on the surface of the connecting plate.

[0010] Preferably, one of the conductive blocks has a positive electrode marking on the side closest to the test line, and the other conductive block has a negative electrode marking on the side closest to the test line.

[0011] By adopting the above technical solution, positive and negative electrode markings are respectively marked at corresponding positions on the two conductive blocks. This allows operators to quickly identify the positive and negative electrode attributes of the two conductive blocks while placing the red and black wires of the lithium battery on the conductive blocks with one hand. This reduces test circuit abnormalities caused by incorrect positive and negative electrode connection and ensures the accuracy and safety of testing core parameters such as lithium battery voltage, internal resistance, and capacity.

[0012] Preferably, each of the two test lines has a quick-plug interface at the end furthest from the connecting plate.

[0013] By adopting the above technical solution, the quick-plug interface is used to connect to the test equipment, which makes the connection operation between the test leads and the test equipment simpler. The quick-plug interface can be quickly plugged and unplugged with one hand, saving time for connecting the equipment before testing and disconnecting the equipment after testing.

[0014] Preferably, it further includes a mounting plate, wherein the connecting plate is hinged to the mounting plate. By adopting the above technical solution, the connecting plate is hinged to the mounting plate, and the angle of the connecting plate can be adjusted arbitrarily. This, in turn, drives the conductive block fixed on the connecting plate and the test wires connected to the conductive block to adjust their angles synchronously. This allows for flexible adaptation to different placement positions during lithium battery testing. By adjusting the angle of the connecting plate, the conductive block can always be in the optimal position for easy one-handed placement of the red and black wires of the lithium battery. At the same time, the angle of the test wires can be adapted to the relative position of the testing equipment and the mounting plate, further optimizing the convenience of one-handed operation.

[0015] Preferably, a universal hinge is provided between the mounting plate and the connecting plate, with one end of the universal hinge fixed to the mounting plate and the other end of the universal hinge fixed to the connecting plate.

[0016] By adopting the above technical solution, a universal hinge is set between the mounting plate and the connecting plate, with one end of the universal hinge fixed to the mounting plate and the other end fixed to the connecting plate. This structure can easily achieve hinged engagement between the connecting plate and the mounting plate through the multi-directional rotation characteristics of the universal hinge. This allows for flexible adjustment of the angle of the connecting plate, which in turn drives the conductive block fixed on the connecting plate and the test lines connected to the conductive block to adjust their angles synchronously. This can adapt to different placement positions of lithium batteries and test scenarios such as the angle of red and black wire leads.

[0017] Preferably, it further includes two protective covers, which are hinged to the connecting plate and respectively cover the two conductive blocks.

[0018] By adopting the above technical solution, the protective cover can effectively shield the conductive block when not in testing mode, reducing the amount of dust particles and other impurities adhering to the surface of the conductive block, which may lead to oxidation or poor contact. This ensures that the conductive block can make stable contact with the red and black wires of the lithium battery during subsequent testing, providing a basis for accurately detecting core parameters such as lithium battery voltage, internal resistance, and capacity. At the same time, the protective cover can also reduce the possibility of personnel accidentally touching the conductive block during non-testing periods, thus reducing operational risks.

[0019] Preferably, the edges of the connecting plate and the mounting plate are rounded.

[0020] By adopting the above technical solutions, in the single-handed operation scenario of lithium battery testing, the rounded corner setting can reduce the risk of hand scratches, improve the safety and grip comfort of the operator, and at the same time, the rounded corner setting can reduce the structural damage caused by collisions with the connecting plate and mounting plate in the testing environment.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. During testing, simply hold the red and black wires of the lithium battery with one hand and quickly place them on two closely spaced conductive blocks. A stable test circuit can be established by connecting the conductive blocks and the test wires, enabling the detection of core parameters such as lithium battery voltage, internal resistance, and capacity. At the same time, since the connection between the red and black wires and the conductive blocks can be completed with one hand, the other hand can simultaneously perform the auxiliary operation of applying tape to fix the position of the red and black wires. This not only simplifies the testing operation steps and reduces the difficulty of single-person operation, but also effectively improves the overall efficiency of lithium battery testing while ensuring the stability of the test circuit and the accuracy of parameter detection. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0023] Figure 2 This is a structural schematic diagram of an embodiment of this application.

[0024] Explanation of reference numerals in the attached diagram: 1. Connecting plate; 2. Conductive block; 3. Test lead; 4. Quick-connect interface; 5. Mounting plate; 6. Universal hinge; 7. Protective cover; 9. Positive polarity indicator; 10. Negative polarity indicator. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0026] This application discloses an auxiliary testing device for lithium batteries. (Refer to...) Figure 1 and Figure 2 It includes a connecting plate 1, two conductive blocks 2 and two test lines 3. The two conductive blocks 2 are fixed on the connecting plate 1 and are close to each other. The two test lines 3 are connected to the two conductive blocks 2 respectively and extend to the test equipment. The end of the test line 3 away from the conductive blocks 2 is plugged into the test equipment.

[0027] This demonstrates that by fixing two conductive blocks 2 to the connecting plate 1 and keeping them close together, and connecting the two conductive blocks 2 to the test lines 3 extending to the test equipment, during testing, the red and black wires of the lithium battery can be held with only one hand, and the red and black wires can be quickly placed on the two closely spaced conductive blocks 2. A stable test circuit can be established by connecting the conductive blocks 2 and the test lines 3, thereby enabling the detection of core parameters such as the voltage, internal resistance, and capacity of the lithium battery.

[0028] Meanwhile, since the connection between the red and black wires and conductive block 2 can be completed with one hand, the other hand can simultaneously perform the auxiliary operation of applying tape to fix the position of the red and black wires. This simplifies the testing operation steps, reduces the difficulty of single-person operation, and effectively improves the overall efficiency of lithium battery testing while ensuring the stability of the test circuit and the accuracy of parameter detection. Specifically, the connecting plate 1 serves to support and fix the conductive block 2. The connecting plate 1 is made of insulating material to ensure safety during use. The connecting plate 1 is rectangular in shape. The conductive block 2 is a key component for realizing the electrical connection between the red and black wires of the lithium battery and the testing equipment. In this embodiment, the conductive block 2 is made of copper. Copper has good electrical and thermal conductivity, which allows the conductive block 2 to be tightly bonded to the connecting plate 1 and not easily loosened. The two conductive blocks 2 are square in shape. In addition to copper, other metals with good conductivity, such as silver or aluminum, can also be used.

[0029] Furthermore, the conductive block 2 is embedded and fixed on the connecting plate 1 to ensure its stable fixation. This reduces the risk of displacement or loosening of the conductive block 2 during single-handed placement of the lithium battery's red and black wires during testing. The test wire 3 connects the conductive block 2 to the testing equipment. The test wire 3 passes through the side wall of the connecting plate 1 and is fixedly connected to the conductive block 2. This reduces the tangling and pulling problems caused by the mess of the test wire 3 exposed on the surface of the connecting plate 1. The material of the test wire 3 should have good conductivity. In this embodiment, the test wire 3 is made of copper wire. One end of the test wire 3 is fixedly connected to the conductive block 2, and the connection between the test wire 3 and the conductive block 2 is ensured by welding or other methods. The other end of the test wire 3 is inserted into the testing equipment.

[0030] Furthermore, since the two conductive blocks 2 are close together, during testing, the operator can directly pinch the red and black wires of the lithium battery with one hand at the same time. Because the distance between the two conductive blocks 2 is short, the red and black wires can be easily and quickly brought into contact with the corresponding two conductive blocks 2, thus successfully establishing a test circuit to carry out the detection of core parameters such as lithium battery voltage, internal resistance, and capacity.

[0031] In addition, one of the conductive blocks 2 has a positive electrode marking 9 near the test line 3, which is a "+" symbol. The other conductive block 2 has a negative electrode marking 10 near the test line 3, which is a "-" symbol. In this embodiment, the positive electrode marking 9 and the negative electrode marking 10 are implemented using stickers or engravings of different colors. In this embodiment, the positive electrode marking 9 and the negative electrode marking 10 are drawn with a marker. The advantage of this setting is that it ensures that when the operator connects the red and black wires of the lithium battery to the conductive block 2 with one hand, the positive and negative electrode correspondence can be quickly identified, reducing the problem of abnormal test circuit, distorted test data, or damage to test equipment and lithium battery caused by incorrect connection of positive and negative electrodes.

[0032] Furthermore, quick-plug interfaces 4 are provided at the ends of the two test leads 3. In this embodiment, the quick-plug interface 4 is configured as a banana plug or the like. The quick-plug interface 4 is used to connect to the test equipment, which makes the connection operation between the test lead 3 and the test equipment simpler. The quick-plug interface 4 can be quickly plugged and unplugged with one hand, saving time for connecting the equipment before testing and disconnecting the equipment after testing.

[0033] Furthermore, this embodiment also includes a mounting plate 5, on which the connecting plate 1 is hinged. The mounting plate 5 is made of the same insulating material as the connecting plate 1, and the mounting plate 5 is rectangular in shape. This design allows the connecting plate 1 to rotate relative to the mounting plate 5, thereby adjusting the angle of the connecting plate 1. This, in turn, causes the conductive block 2 fixed on the connecting plate 1 and the test line 3 connected to the conductive block 2 to adjust their angles synchronously, adapting to different placement positions of lithium batteries and test scenarios such as the angle of red and black wire leads.

[0034] In addition, a universal hinge 6 is provided between the mounting plate 5 and the connecting plate 1. One end of the universal hinge 6 is fixed to the mounting plate 5, and the other end is fixed to the connecting plate 1. In this embodiment, the universal hinge 6 is set as a universal hinge ball. Through the damping cooperation or friction design between the ball and the ball seat, the operator can flexibly rotate the connecting plate 1 to adjust to a suitable angle according to the requirements such as the placement position of the lithium battery and the angle of the red and black lines. Once rotated to the target angle, the force between the ball and the ball seat can counteract the gravity of the connecting plate 1 and the slight external force, so that the connecting plate 1 is stably maintained at that angle.

[0035] Furthermore, the embodiments of this application also include two protective covers 7, which are hinged to the connecting plate 1. The two protective covers 7 cover the two conductive blocks 2. The protective covers 7 are made of insulating material and their shapes match the conductive blocks 2, so as to completely cover the conductive blocks 2.

[0036] Furthermore, the protective cover 7 is connected to the connecting plate 1 by a hinge, and the flipping direction of the protective cover 7 is perpendicular to the connection direction of the test line 3 and the copper block. During the lithium battery testing operation, when the operator opens or closes the protective cover 7, since the flipping direction of the protective cover 7 is perpendicular to the connection direction of the test line 3 and the copper block, the flipping trajectory of the protective cover 7 will not overlap with the direction of the red and black lines of the lithium battery placed on the conductive block 2. The range of hand movements does not interfere with the operation area of ​​the red and black lines placed on the conductive block 2.

[0037] Furthermore, when not testing, the protective cover 7 is placed over the conductive block 2. The protective cover 7 can effectively shield the conductive block 2, reducing the adhesion of dust particles and other impurities to the surface of the conductive block 2, which may lead to oxidation or poor contact. This ensures that the conductive block 2 can make stable contact with the red and black wires of the lithium battery during subsequent testing, providing a basis for accurately detecting core parameters such as lithium battery voltage, internal resistance, and capacity. At the same time, the protective cover 7 can also reduce the possibility of personnel accidentally touching the conductive block 2 during non-testing periods, thus reducing operational risks.

[0038] In addition, the edges of the connecting plate 1 and the mounting plate 5 are rounded. The rounded corners reduce the risk of hand scratches and improve the safety and grip comfort of the operator. At the same time, the rounded corners can reduce the structural damage caused by collisions with the connecting plate 1 and the mounting plate 5 in the testing environment.

[0039] The implementation principle of the lithium battery auxiliary testing device in this application embodiment is as follows: Using a connecting plate 1 as the basic supporting structure, two conductive blocks 2 with good conductivity are embedded and fixed on the connecting plate 1, keeping the two conductive blocks 2 relatively close together. Simultaneously, positive / negative polarity markings 10 are marked at corresponding positions on the conductive blocks 2. Two test wires 3 pass through the side wall of the connecting plate 1 and are welded and fixed to the conductive blocks 2 respectively. The ends of the test wires 3 are provided with quick-connect interfaces 4 for plugging into the testing equipment, thus establishing an electrical path from the red and black wires of the lithium battery to the testing equipment.

[0040] It also includes a mounting plate 5, and a universal hinge 6 is provided between the mounting plate 5 and the connecting plate 1. The universal hinge 6 can be used to flexibly adjust the connecting plate 1 to further adjust the angle of the conductive block 2 and the test line 3 and keep them stable, adapting to different placement positions of lithium batteries and the lead-out angle of red and black lines.

[0041] The connecting plate 1 is also hinged with a protective cover 7. The flipping direction of the protective cover 7 is perpendicular to the connection direction of the test line 3 and the conductive block 2. When not testing, it can completely cover the conductive block 2 to prevent dust and accidental contact. When testing, it can be lifted with one hand.

[0042] During actual testing, the operator adjusts the angle of the connecting plate 1 to the appropriate position with one hand, lifts the protective cover 7, and then pinches the red and black wires of the lithium battery with one hand. Taking advantage of the close proximity of the two conductive blocks 2, the red and black wires of the lithium battery are quickly connected to the two conductive blocks 2. A stable test circuit is established through the connection of the conductive blocks 2 and the test line 3, so as to realize the detection of core parameters such as lithium battery voltage, internal resistance, and capacity.

[0043] Meanwhile, since the docking operation can be completed with one hand, the other hand can simultaneously perform the auxiliary operation of applying tape to fix the red and black wires. In addition, the rounded corners of the connecting plate 1 and the mounting plate 5 improve the safety of use. Overall, while ensuring the accuracy of testing and the safety of operation, the steps are greatly simplified, the difficulty of single-person operation is reduced, and the efficiency of lithium battery testing is effectively improved.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lithium battery auxiliary testing device, characterized in that: It includes a connecting plate (1) and two conductive blocks (2) fixed on the connecting plate (1). The two conductive blocks (2) are close to each other. The two conductive blocks (2) are respectively connected to test lines (3) extending to the test equipment. The end of the test line (3) away from the conductive block (2) is plugged into the test equipment.

2. The lithium battery auxiliary testing device according to claim 1, characterized in that: Two conductive blocks (2) are embedded and fixed on the connecting plate (1), and two test lines (3) pass through the side wall of the connecting plate (1) and are fixedly connected to the conductive blocks (2).

3. The lithium battery auxiliary testing device according to claim 1, characterized in that: One of the conductive blocks (2) has a positive electrode marking (9) in the direction near the test line (3), and the other conductive block (2) has a negative electrode marking (10) in the direction near the test line (3).

4. The lithium battery auxiliary testing device according to claim 1, characterized in that: Both test lines (3) are provided with quick-plug interfaces (4) at the ends away from the connecting plate (1).

5. The lithium battery auxiliary testing device according to claim 1, characterized in that: It also includes a mounting plate (5), on which the connecting plate (1) is hinged.

6. The lithium battery auxiliary testing device according to claim 5, characterized in that: A universal hinge (6) is provided between the mounting plate (5) and the connecting plate (1). One end of the universal hinge (6) is fixed to the mounting plate (5), and the other end of the universal hinge (6) is fixed to the connecting plate (1).

7. The lithium battery auxiliary testing device according to claim 1, characterized in that: It also includes two protective covers (7), which are hinged to the connecting plate (1) and respectively cover the two conductive blocks (2).

8. The lithium battery auxiliary testing device according to claim 5, characterized in that: The edges of the connecting plate (1) and the mounting plate (5) are rounded.

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