Capacitance test clamping device

Abstract

The utility model relates to the technical field of storage battery testing, and provides a capacitance test clamping device. The capacitance test clamping device comprises a distance adjusting assembly, a protection piece, a limiting assembly, an adjusting assembly and a capacity tester assembly. Wherein at least one end of the protection piece is provided with an opening and is internally provided with a protection cavity, and the test joints of the capacity tester assembly are arranged in the protection cavity in a one-to-one correspondence manner; the distance adjusting assembly is connected with the protection pieces and used for adjusting the distance between the protection pieces; the limiting assembly is connected with the two protection parts and can stretch out and draw back in the distance adjusting direction of the protection parts. The adjusting assembly is arranged between the distance adjusting assembly and the limiting assembly. The storage battery capacity testing device solves the problems that in the storage battery capacity testing process, the labor intensity of operators is increased, poor contact is easily caused by fatigue or misoperation, and the accuracy of testing results is affected in the prior art, and the storage battery capacity testing device can reduce the labor intensity of the operators and improve the testing efficiency. And the clamping device for the capacitance test enables the binding posts to be fixed more firmly.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, and in particular to a capacity testing clamping device. Background Technology

[0002] During battery pack capacity testing, it is typically necessary to connect testing equipment to the battery electrodes for discharge detection. To ensure the stability and accuracy of the test, a reliable clamping device is required to achieve a secure connection between the testing equipment and the battery electrodes, and to reduce manual intervention.

[0003] Currently, the common clamping method involves the operator holding the tester's probe in hand, continuously pressing the probe against the battery's terminals, and manually fixing it throughout the entire test.

[0004] Because the testing process takes a long time, operators need to manually maintain the contact between the test probe and the terminal block throughout the process. This not only increases the labor intensity but also makes it easy for fatigue or misoperation to cause poor contact, affecting the accuracy of the test results. Utility Model Content

[0005] This utility model provides a capacity testing clamping device to solve the defects of the existing technology in the process of battery pack capacity testing, which not only increases the labor intensity, but also easily leads to poor contact due to fatigue or misoperation, affecting the accuracy of the test results. It realizes a capacity testing clamping device that can reduce the labor intensity of the staff and make the terminal block more secure.

[0006] This utility model provides a capacitance testing clamping device, comprising:

[0007] Capacity tester components, including test connectors;

[0008] At least two protective components, each having an opening at at least one end and a protective cavity inside, with the test connectors correspondingly disposed in the protective cavities;

[0009] An adjustment assembly, connected to the protective component, is used to adjust the distance between the two protective components;

[0010] A limiting component is connected to the two protective members and can extend and retract along the direction of adjustment of the distance between the two protective members;

[0011] An adjustment component, disposed between the adjustment component and the limiting component, is used to drive the limiting component to switch between a first position and a second position; in the first position, the limiting component limits the terminal block to the test connector; in the second position, the limiting component releases the limiting of the terminal block.

[0012] According to the capacitance testing clamping device provided by this utility model, the distance adjustment component includes:

[0013] The frame has a sliding track;

[0014] A bidirectional threaded rod is rotatably mounted on the frame.

[0015] At least two threaded sliders, the interior of the two threaded sliders is threadedly connected to the bidirectional threaded rod, the exterior of the two threaded sliders is slidably engaged with the slide rail, and the protective components are correspondingly provided on the threaded sliders;

[0016] A power source, connected to the bidirectional threaded rod, is used to drive the bidirectional threaded rod to rotate.

[0017] According to the present invention, a capacitance testing clamping device is provided, wherein the power source includes mechanical power and manual power; when the power source is manual power, a first handle is provided at one end of the bidirectional threaded rod.

[0018] According to the capacitance testing clamping device provided by this utility model, the limiting component includes:

[0019] At least two limiting members are provided, each corresponding to the other, and are slidably disposed on the protective member.

[0020] A telescopic component is disposed between the two limiting components.

[0021] According to the capacitance testing clamping device provided by this utility model, the telescopic component includes:

[0022] Guide components;

[0023] At least two sliding members are provided, each sliding member is slidably disposed at both ends of the guide member, and two limiting members are correspondingly disposed at the ends of the sliding members away from the guide member.

[0024] According to the capacitance testing clamping device provided by this utility model, the adjustment component includes:

[0025] Threaded sleeve, located in the limit assembly;

[0026] A fixed base is provided on the adjusting assembly;

[0027] The threaded rod has one end threadedly connected to the threaded sleeve, and the other end passes through the fixed seat and is rotatably engaged with the fixed seat.

[0028] According to the capacitance testing clamping device provided by this utility model, the adjustment component further includes a second handle, which is located at the end of the threaded rod away from the threaded sleeve.

[0029] According to the present invention, a capacitance testing clamping device is provided, wherein the first handle is provided with an anti-slip part.

[0030] According to the capacitance testing clamping device provided by this utility model, the capacitance tester assembly further includes:

[0031] Capacity tester;

[0032] One end of the wire is electrically connected to the capacity tester, and the other end is electrically connected to the test connector.

[0033] According to the present invention, a capacitance test clamping device is provided, wherein the test connector is provided with a limiting groove, and the limiting groove is adapted to the shape of the terminal block.

[0034] The capacitance testing clamping device provided by this utility model adjusts the distance between two protective components via an adjustable spacing assembly to accommodate battery terminals of different specifications. The protective cavity inside the protective component accommodates the test connector and prevents external interference. The limiting assembly switches positions under the drive of the adjusting assembly: in the first position, the limiting assembly presses the terminal onto the test connector to ensure contact stability; in the second position, the limiting assembly releases the terminal, facilitating quick assembly and disassembly. This utility model reduces manual intervention, lowers labor intensity, and avoids testing errors caused by poor contact. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the first orientation of the capacitance testing clamping device provided by this utility model.

[0037] Figure 2 This is a schematic diagram of the second direction structure of the capacitance testing clamping device provided by this utility model.

[0038] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0039] Figure 4 This is a partial structural schematic diagram of the capacitance testing clamping device provided by this utility model.

[0040] Figure label:

[0041] 100: Adjustable distance assembly; 110: Frame; 120: Two-way threaded rod; 130: Threaded slider; 140: First handle;

[0042] 200: Protective components;

[0043] 300: Limiting component; 310: Guide component; 320: Sliding component; 330: Limiting component;

[0044] 400: Adjustment component; 410: Threaded sleeve; 420: Threaded rod; 430: Fixing base; 440: Second handle;

[0045] 500: Capacity tester assembly; 510: Capacity tester; 520: Lead wire; 530: Test connector. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0047] The following is combined Figures 1-4 Describe the structure and working principle of this utility model.

[0048] Reference Figure 1 and Figure 2 The present invention provides a capacitance testing clamping device comprising an adjusting assembly 100, at least two protective members 200, a limiting assembly 300, an adjusting assembly 400, and a capacitance tester assembly 500. The capacitance tester assembly 500 includes a test connector 530; at least one end of each protective member 200 has an opening and an internal protective cavity, with the test connectors 530 correspondingly disposed within the protective cavity; the adjusting assembly 100 is connected to the protective members 200 and is used to adjust the distance between the two protective members 200; the limiting assembly 300 is connected to the two protective members 200 and can extend and retract along the direction of adjusting the distance between the two protective members 200; the adjusting assembly 400 is disposed between the adjusting assembly 100 and the limiting assembly 300 and is used to drive the limiting assembly 300 to switch between a first position and a second position; in the first position, the limiting assembly 300 limits the terminal to the test connector 530; in the second position, the limiting assembly 300 releases the limitation on the terminal.

[0049] Specifically, the adjusting component 100 only needs to be able to adjust the distance between the two protective members 200, and its specific form is not limited. The protective member 200 can be a sleeve structure, meaning it has openings at both ends and an internal cavity structure, which serves as the protective cavity. As for the limiting component 300, on the one hand, its two ends can extend and retract with the movement of the protective member 200; on the other hand, the limiting component 300 can be adjusted in position as a whole under the action of the adjusting component 400.

[0050] This invention adjusts the distance between two protective components 200 using an adjusting component 100 to accommodate battery terminals of different specifications. The protective cavity inside each protective component 200 accommodates the test connector 530, preventing external interference. The limiting component 300 switches positions under the drive of the adjusting component 400: in the first position, the limiting component 300 presses the terminal onto the test connector 530, ensuring contact stability; in the second position, the limiting component 300 releases the terminal, facilitating quick assembly and disassembly. During operation, the initial distance between the protective components 200 is first adjusted using the adjusting component 100, aligning the terminal with the test connector 530 inside the protective cavity. Then, the limiting component 300 is pushed to the first position by the adjusting component 400 to complete the clamping, allowing testing via the capacity tester component 500. After testing, the limiting component 300 is returned to the second position by the adjusting component 400 to release the clamping. This device reduces manual intervention, lowers labor intensity, and avoids testing errors caused by poor contact.

[0051] Reference Figure 1 In some embodiments of this utility model, the adjusting assembly 100 includes a frame 110, a bidirectional threaded rod 120, at least two threaded sliders 130, and a power source. The frame 110 has a slide rail; the bidirectional threaded rod 120 is rotatably mounted on the frame 110; the interiors of the two threaded sliders 130 are threadedly connected to the bidirectional threaded rod 120, and the exteriors of the two threaded sliders 130 slide in cooperation with the slide rail; protective members 200 are correspondingly provided on the threaded sliders 130; the power source is connected to the bidirectional threaded rod 120 and is used to drive the bidirectional threaded rod 120 to rotate. The power source includes mechanical power and manual power; when the power source is manual power, one end of the bidirectional threaded rod 120 is provided with a first handle 140.

[0052] Specifically, the slide rail of the frame 110 can be provided with a T-slot or a dovetail groove, and the external of the threaded slider 130 is provided with a matching protrusion structure to keep it stable when sliding along the slide rail. The bidirectional threaded rod 120 is rotatably mounted at both ends of the frame 110 via bearings, which can be deep groove ball bearings or sliding bearings, and are limited by end caps. The internal part of the threaded slider 130 is provided with a threaded hole that matches the bidirectional threaded rod 120. The thread type can be trapezoidal thread or ordinary triangular thread to improve transmission smoothness. The protective part 200 can be fixedly mounted on the upper surface of the threaded slider 130. The fixing method can be bolt connection or welding. When bolt connection is used, a threaded hole can be opened on the threaded slider 130, and the base of the protective part 200 is provided with a through hole for fastening with bolts. If the power source is a motor, its output shaft can be connected to the bidirectional threaded rod 120 through a coupling; if it is manually powered, the first handle 140 can be keyed or pinned to the end of the bidirectional threaded rod 120.

[0053] In this embodiment, the pitch adjustment component 100 drives the bidirectional threaded rod 120 to rotate via a power source, causing the two threaded sliders 130 to move synchronously in opposite directions along the slide rail, thereby adjusting the distance between the two protective components 200 to accommodate the terminal spacing of batteries of different specifications. The power source can be mechanical (such as a motor) or manual (such as the first handle 140). Manual operation is simple and suitable for environments without power, while mechanical operation can improve adjustment efficiency. The threaded engagement between the threaded slider 130 and the bidirectional threaded rod 120 ensures adjustment accuracy, and the slide rail restricts its movement trajectory to prevent skewing. During operation, if manual operation is used, the operator rotates the first handle 140 to rotate the bidirectional threaded rod 120, causing the threaded slider 130 to move the protective component 200 to the appropriate position; if mechanical operation is used, the rotation of the bidirectional threaded rod 120 is directly controlled by an external drive device. This structure improves the adaptability of the clamping device, ensures precise alignment of the test connector 530 and the terminal, reduces manual adjustment time, and improves testing efficiency.

[0054] In some possible embodiments, scales may be provided on both sides of the slide rail of the frame 110 to visually display the adjustment distance of the protective component 200, facilitating quick matching with different battery models. The sliding contact surface of the threaded slider 130 may be fitted with wear-resistant bushings, such as copper-based graphite bushings or engineering plastic bushings, to reduce wear during long-term use. The grip portion of the first handle 140 may be covered with a non-slip rubber layer to improve the comfort of manual operation. This embodiment enhances the stability, durability, and ease of operation of the device, making it suitable for frequent adjustments or high-precision testing scenarios.

[0055] Reference Figure 1In some embodiments of this utility model, the limiting component 300 includes at least two limiting members 330 and a telescopic component. The limiting members 330 are slidably disposed on the protective member 200 in a one-to-one correspondence; the telescopic component is disposed between the two limiting members 330.

[0056] It should be noted that the limiting member 330 slides through the side wall of the protective member 200. Specifically, a through hole is made at the corresponding position of the protective member 200, and a linear sliding bearing or bushing is installed in the through hole. The limiting member 330 slides axially through the bearing or bushing. The clearance between the through hole and the limiting member 330 is controlled within a small range to ensure smooth sliding without wobbling. The through section of the limiting member 330 may be provided with an annular limiting boss to prevent it from dislodging from the protective member 200. A clearance is left between the limiting boss and the inner or outer wall of the protective member 200. The telescopic component is connected to the ends of the two limiting members 330 located inside the protective member 200. The connection method can be integral molding, threaded connection, pin hinge, or quick-connect structure.

[0057] When the adjusting component 400 drives the telescopic component to move, the limiting member 330 slides axially along the through hole of the protective member 200, causing the two limiting members 330 to move synchronously towards or away from each other. In the first position, the limiting member 330 presses against the battery terminal, ensuring reliable contact between the test connector 530 and the terminal; in the second position, the limiting member 330 releases its restriction on the terminal. The through-type sliding design makes the force on the limiting member 330 more balanced, avoiding the jamming problem caused by force on one side. During operation, the position of the limiting member 330 can be switched by adjusting the adjusting component 400. The entire process does not require direct manual operation of the limiting member 330, which ensures operational safety and improves testing efficiency.

[0058] Reference Figure 1 and Figure 4 In some embodiments of this utility model, the telescopic component includes a guide member 310 and at least two sliding members 320, with the two sliding members 320 respectively slidably disposed at both ends of the guide member 310, and two limiting members 330 correspondingly disposed at the ends of the sliding members 320 away from the guide member 310.

[0059] Specifically, the guide member 310 can adopt a hollow tubular structure or a solid rod structure, and its surface is provided with a linear guide rail or guide groove. The sliding member 320 cooperates with the guide rail of the guide member 310 through a slider or roller structure to achieve smooth axial sliding. The limiting member 330 is fixedly disposed at the end of the sliding member 320, and the connection method is threaded connection or welding. If a threaded connection is used, the end of the sliding member 320 is provided with an internal threaded hole, and the mounting end of the limiting member 330 is machined with an external thread; if welding is used, the limiting member 330 is directly welded to the end face of the sliding member 320.

[0060] In this embodiment, the guide member 310 provides precise sliding guidance for the sliding member 320, enabling the two limiting members 330 to move towards or away from each other. When the two protective members 200 move, they drive the limiting member 330, which in turn drives the sliding member 320 to slide along the guide member 310, achieving length adjustment. This ensures that the limiting member 330 can always be connected to the sliding member 320 or always be located on the protective member 200. The linear guide structure of the guide member 310 ensures the accurate movement trajectory of the limiting member 330, avoiding poor contact caused by skewness. The sliding fit between the sliding member 320 and the guide member 310 can use a low-friction coefficient material, such as engineering plastics or coated metal, to reduce movement resistance. This structure achieves smooth and synchronous movement of the limiting member 330, improves the reliability and repeatability of clamping, and reduces frictional loss during operation.

[0061] Reference Figure 2 and Figure 3 In some embodiments of this utility model, the adjusting component 400 includes a threaded sleeve 410, a fixed seat 430, a threaded rod 420, and a second handle 440. The threaded sleeve 410 is disposed on the limiting component 300; the fixed seat 430 is disposed on the adjusting component 100; one end of the threaded rod 420 is threadedly connected to the threaded sleeve 410, and the other end passes through the fixed seat 430 and is rotatably engaged with the fixed seat 430. The second handle 440 is disposed at the end of the threaded rod 420 away from the threaded sleeve 410.

[0062] Specifically, the threaded sleeve 410 is fixedly mounted on the telescopic component of the limiting assembly 300. Specifically, an installation platform is provided in the middle of the guide member 310 of the telescopic component, and the threaded sleeve 410 is fixed to this platform by welding or bolts. The fixed seat 430 is fixedly mounted on the frame 110 of the adjusting assembly 100. Its installation method involves welding a fixed bracket to the side of the frame 110, and the fixed seat 430 is connected to the bracket by bolts. The threaded connection between the threaded rod 420 and the threaded sleeve 410 uses a trapezoidal or rectangular thread. The end of the threaded rod 420 has a shoulder, and its axial movement is restricted by a retaining spring. The rotational fit between the threaded rod 420 and the fixed seat 430 uses a sliding bearing or a ball bearing, and the bearing is fixed inside the fixed seat 430 by a pressure cap. The second handle 440 is fixedly mounted on the end of the threaded rod 420, and the connection method is a keyed connection or a tapered fit, and it is locked with an end nut to prevent loosening.

[0063] In this embodiment, rotating the second handle 440 drives the threaded rod 420 to rotate. Since the threaded rod 420 is rotatably engaged with the fixed seat 430 and threadedly connected to the threaded sleeve 410, the rotational motion of the threaded rod 420 is converted into the linear motion of the threaded sleeve 410, thereby driving the entire limiting assembly 300 to move. When the second handle 440 is rotated clockwise, the threaded sleeve 410 moves towards the fixed seat 430, pulling the limiting assembly 300 to retract; when rotated counterclockwise, it pushes the limiting assembly 300 to extend. The threaded drive has a self-locking characteristic, maintaining the stable position of the limiting assembly 300. This structure achieves precise adjustment of the position of the limiting assembly 300, is labor-saving, and the adjustment process is smooth, ensuring a stable clamping force of the limiting component 330 on the battery terminal during testing.

[0064] In some embodiments of this utility model, the first handle 140 is provided with an anti-slip part (not shown in the figure).

[0065] Specifically, the anti-slip part of the first handle 140 can adopt a wrap-around structure or a one-piece molded structure. In the wrap-around structure, the anti-slip part is a rubber or silicone sleeve, which is fitted onto the grip area of ​​the first handle 140 with an interference fit. The inner surface of the rubber sleeve may have annular protrusions to enhance the fixing effect. In the one-piece molded structure, the anti-slip part is integrally cast or injection molded with the first handle 140, and anti-slip textures or uneven surfaces are machined on the grip area. The connection end between the first handle 140 and the threaded rod 420 may have a mounting hole, and the anti-slip part is fixed by a set screw or pin. The material of the anti-slip part can be a thermoplastic elastomer or a knurled metal, which has sufficient wear resistance while ensuring anti-slip performance. The thickness of the anti-slip part is determined according to the diameter of the handle to ensure a comfortable grip and prevent slippage during operation.

[0066] This embodiment significantly improves grip stability during operation by incorporating an anti-slip part in the first handle 140. When the operator rotates the first handle 140 to adjust the position of the limiting component 300, the anti-slip part increases the friction between the hand and the handle, preventing slippage during force application. The elastic material of the anti-slip part can buffer vibrations during operation, improving hand comfort. During operation, the operator can apply rotational torque more stably, precisely control the rotation angle of the threaded rod 420, and thus accurately adjust the extension and retraction of the limiting component 300.

[0067] Reference Figure 1In some embodiments of this utility model, the capacity tester assembly 500 further includes a capacity tester 510 and a wire 520. One end of the wire 520 is electrically connected to the capacity tester 510, and the other end is electrically connected to a test connector 530. The test connector 530 is provided with a limiting groove, the shape of which is adapted to the shape of the terminal block. Specifically, the limiting groove can be a "V" shaped structure. The capacity tester 510 and the test connector 530 are electrically connected via the wire 520 to perform the test.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A capacitance testing clamping device, characterized in that, include: Capacity tester components, including test connectors; At least two protective components, each having an opening at at least one end and a protective cavity inside, with the test connectors correspondingly disposed in the protective cavities; An adjustment assembly, connected to the protective component, is used to adjust the distance between the two protective components; A limiting component is connected to the two protective members and can extend and retract along the direction of adjustment of the distance between the two protective members; An adjustment component, disposed between the adjustment component and the limiting component, is used to drive the limiting component to switch between a first position and a second position; in the first position, the limiting component limits the terminal block to the test connector; in the second position, the limiting component releases the limiting of the terminal block.

2. The capacitance testing clamping device according to claim 1, characterized in that, The distance adjustment component includes: The frame has a sliding track; A bidirectional threaded rod is rotatably mounted on the frame. At least two threaded sliders, the interior of the two threaded sliders is threadedly connected to the bidirectional threaded rod, the exterior of the two threaded sliders is slidably engaged with the slide rail, and the protective components are correspondingly provided on the threaded sliders; A power source, connected to the bidirectional threaded rod, is used to drive the bidirectional threaded rod to rotate.

3. The capacitance testing clamping device according to claim 2, characterized in that, The power source includes mechanical power and manual power; when the power source is manual power, a first handle is provided at one end of the bidirectional threaded rod.

4. The capacitance testing clamping device according to claim 1, characterized in that, The limiting component includes: At least two limiting members are provided, each corresponding to the other, and are slidably disposed on the protective member. A telescopic component is disposed between the two limiting components.

5. The capacitance testing clamping device according to claim 4, characterized in that, The telescopic component includes: Guide components; At least two sliding members are provided, each sliding member is slidably disposed at both ends of the guide member, and two limiting members are correspondingly disposed at the ends of the sliding members away from the guide member.

6. The capacitance testing clamping device according to claim 1, characterized in that, The adjustment component includes: Threaded sleeve, located in the limiting assembly; A fixed base is provided on the adjusting assembly; The threaded rod has one end threadedly connected to the threaded sleeve, and the other end passes through the fixed seat and is rotatably engaged with the fixed seat.

7. The capacitance testing clamping device according to claim 6, characterized in that, The adjustment assembly also includes a second handle, which is located at the end of the threaded rod away from the threaded sleeve.

8. The capacitance testing clamping device according to claim 3, characterized in that, The first handle is equipped with an anti-slip part.

9. The capacitance testing clamping device according to any one of claims 1-8, characterized in that, The capacity tester assembly also includes: Capacity tester; One end of the wire is electrically connected to the capacity tester, and the other end is electrically connected to the test connector.

10. The capacitance testing clamping device according to claim 9, characterized in that, The test connector is provided with a limiting groove, which is adapted to the shape of the terminal block.

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