Button cell test fixture
By designing a buckle battery test fixture including a lower clamping seat, a movable seat, a driving structure, a pressing seat and a press head, the problems of inconvenient clamping, uneven pressure, and easy loosening of terminals in the prior art are solved, and stable wire connection and uniform pressure distribution are achieved, testing efficiency is improved and cost is reduced.
Patent Information
- Application Number
- CN202421146922.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-05-23
AI Technical Summary
The existing buckle battery test fixture has a simple structure that is not convenient for clamping, uneven pressure, or the structure is too specific, with high cost, and the terminals are easy to loosen, affecting R&D efficiency.
A buckle-type battery test fixture including a lower clamp seat, a movable seat, a driving structure, a press seat and a press head is designed. The guide groove and an insulation layer are arranged to ensure stable connection of the conductors and uniform pressure distribution through the driving structure.
It realizes stable connection of wires, easy clamping and uniform pressure, reduces R&D costs and improves testing efficiency.
Smart Images
Figure CN222784530U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery research and development testing, in particular to a button-type battery testing fixture. Background Art
[0002] During the battery research and development stage, button batteries are often used as carriers for cycle testing after battery cell assembly because they are easy to assemble and their hard shell provides a certain degree of protection for the test battery cells.
[0003] In the existing technology, button-type battery test fixtures are of mixed quality. Some are too simple in structure, inconvenient to clamp and have uneven pressure, or have highly specialized and refined structures that are not suitable for laboratory environments with variable materials, structures, electrochemical properties, etc., and are too expensive, increasing unnecessary R&D costs.
[0004] In the prior art, some button-type battery test fixtures use wires and wiring terminals for wiring, and the wiring terminals often become loose, which is not conducive to efficient research and development. Utility Model Content
[0005] The utility model aims to provide a button-type battery testing fixture to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.
[0006] The technical solutions adopted to solve the above technical problems are:
[0007] The utility model provides a button-type battery testing fixture, comprising a lower clamping seat, a movable seat, a driving structure, a pressure seat, and a pressure head. The pressure seat is arranged on the lower clamping seat, and the lower clamping seat is provided with a first guide groove for connecting a wire to the pressure seat. The pressure head is arranged on the movable seat, and the movable seat is provided with a second guide groove for connecting the wire to the pressure head. The pressure seat and the pressure head are arranged opposite to each other, and the driving structure is used to drive the pressure seat and the pressure head to move closer to or away from each other. The pressure seat and the pressure head are both conductive components, and an insulating layer is provided at the connection between the lower clamping seat, the movable seat, the pressure seat, and the pressure head.
[0008] The beneficial effects of the utility model are:
[0009] The first guide groove and the second guide groove are specially provided to facilitate the setting of the wires, which are respectively connected to the positive and negative electrodes of the button battery under test. During the compression test, the wires are easy to fall off but not easy to fall off. The structure is simple and the battery clamp is easy to fix.
[0010] As a further improvement of the above technical solution, the lower clamping seat is provided with a first insulating seat, the pressure seat is provided on the first insulating seat, and the first insulating seat is provided with an annular limiting rib for limiting the battery, which is conducive to placing the button battery to be tested on the pressure seat and limiting it.
[0011] As a further improvement of the above technical solution, the bottom of the pressure seat is provided with a first protrusion, and the first insulating seat and the lower clamp seat are both provided with a first mounting hole matching the first protrusion, so that the first insulating seat can provide blocking and limiting for the battery and facilitate the installation of the pressure seat.
[0012] As a further improvement of the above technical solution, the lower clamp seat is provided with a first limiting groove, the first guide groove is provided on the side opposite to the first limiting groove, the first insulating seat is provided in the first limiting groove, and the first mounting hole is connected to the first guide groove to facilitate the setting of the wire.
[0013] As a further improvement of the above technical solution, the movable seat is provided with a second insulating seat, the pressure head is provided with a second convex end, the second insulating seat and the movable seat are both provided with a second mounting hole matching the second convex end, and the second mounting hole is connected to the second guide groove.
[0014] As a further improvement of the above technical solution, the movable seat is provided with a second limiting groove, the second insulating seat is arranged in the second limiting groove, and the second limiting groove is connected to the second guide groove.
[0015] As a further improvement of the above technical solution, it also includes a guide column, the movable seat is slidably sleeved on the guide column, the movable seat and the guide column are clearance-matched, and the driving structure is used to drive the pressure head to move closer to or away from the pressure seat. The clearance fit allows the movable plate to achieve micro-angle free rotation in space, effectively avoiding uneven force on various points of the battery when clamping the battery due to insufficient part processing accuracy. The movable seat is designed to float and clamp at an adaptive angle.
[0016] As a further improvement of the above technical solution, the driving structure includes an upper clamping seat and a clamping screw. The two ends of the guide column are respectively arranged on the lower clamping seat and the upper clamping seat. The clamping screw is threadedly connected to the upper clamping seat and abuts against the movable seat. The clamp is pressurized by using the clamping screw. The pressure head and pressure seat are respectively connected to the lower clamping seat and the movable seat for centering and clamping.
[0017] As a further improvement of the above technical solution, it also includes a wire, which is an integrated flat metal sheet and has openings at both ends of the wire, which effectively prevents the wire from falling off when wiring using a wiring terminal.
[0018] As a further improvement of the above technical solution, the middle portion of the wire is wrapped with an insulating sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0020] Figure 1This is a structural schematic diagram of a button battery test fixture provided by the utility model, wherein six arrows represent forward, backward, left, right, upward and downward directions respectively;
[0021] Figure 2 The utility model provides a button battery test fixture, and an exploded structural schematic diagram of one embodiment thereof, wherein six arrows represent forward, backward, left, right, upward and downward directions respectively;
[0022] Figure 3 The utility model provides a button battery test fixture, and an exploded structural schematic diagram of one embodiment thereof, wherein six arrows represent forward, backward, left, right, upward and downward directions respectively;
[0023] Figure 4 The utility model provides a button battery test fixture, and an exploded structural schematic diagram of an embodiment thereof, wherein six arrows respectively represent forward, backward, left, right, upward and downward directions.
[0024] Reference numerals:
[0025] The lower clamping seat 100, the first guide groove 110, the first limiting groove 120, the movable seat 200, the second guide groove 210, the second limiting groove 230, the pressing seat 300, the first protrusion 310, the pressing head 400, the second protrusion 410, the first insulating seat 500, the annular limiting rib 510, the first mounting hole 520, the second insulating seat 600, the second mounting hole 610, the guide column 700, the upper clamping seat 800, the tightening screw 810, the wire 900, and the opening 910. DETAILED DESCRIPTION
[0026] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0028] In the description of the present utility model, if there are words such as "several", it means one or more, "more" means more than two, greater than, less than, exceed, etc. are understood to exclude the number, and above, below, within, etc. are understood to include the number.
[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0030] During the battery research and development stage, button batteries are often used as carriers for cycle testing after battery cell assembly because they are easy to assemble and their hard shell provides a certain degree of protection for the test battery cells.
[0031] In the existing technology, button-type battery test fixtures are of mixed quality. Some are too simple in structure, inconvenient to clamp and have uneven pressure, or have highly specialized and refined structures that are not suitable for laboratory environments with variable materials, structures, electrochemical properties, etc., and are too expensive, increasing unnecessary R&D costs.
[0032] In the prior art, some button battery test fixtures use wires 900 plus wiring terminals for wiring, and the wiring terminals often become loose, which is not conducive to the efficient development of research and development. Figures 1 to 4 The present invention provides a button battery test fixture as follows:
[0033] In some embodiments, a button battery testing fixture includes a lower clamping seat 100 , a movable seat 200 , a driving structure, a pressing seat 300 , a pressing head 400 , a first insulating seat 500 , a second insulating seat 600 , two guide pillars 700 , and two wires 900 .
[0034] The press seat 300 and the press head 400 are arranged opposite to each other, and the driving structure is used to drive the press head 400 to move away from or towards the press seat 300. In another embodiment, the driving structure is used to drive the press seat 300 to move away from or towards the press head 400. The press seat 300 and the press head 400 are both conductive components, and an insulating layer is provided at the connection between the lower clamp seat 100, the movable seat 200 and the press seat 300 and the press head 400 to effectively prevent the clamp from short-circuiting after assembly.
[0035] The driving structure includes an upper clamping seat 800 and a clamping screw 810. The two ends of the guide column 700 are respectively arranged on the lower clamping seat 100 and the upper clamping seat 800. The clamping screw 810 is threadedly connected to the upper clamping seat 800 and abuts against the movable seat 200. The clamp is pressurized by the clamping screw 810. The pressure head 400 and the pressure seat 300 are respectively connected to the lower clamping seat 100 and the movable seat 200 for centering and clamping. The clamping screw 810 pressurizes the movable seat 200. A torque wrench can be used to apply constant force to it. In some other embodiments, a cylinder, electric cylinder or other equipment can also be used to press down to drive the movable seat 200 to press down.
[0036] The lower fixed plate and the upper fixed plate are connected and fixed by the two guide columns 700; the movable plate is assembled between the upper fixed plate and the lower fixed plate, and is slidably connected to the guide columns 700; the pressure head 400 is fixed to the movable plate through the second insulating seat 600; the pressure seat 300 is fixed to the lower clamping seat 100 through the first insulating seat 500; the clamping screw 810 is threadedly connected to the upper clamping seat 800, and the lower end surface of the clamping screw 810 abuts against the movable seat 200, and the clamp is pressurized by using the clamping screw 810, and the pressure head 400 and the pressure seat 300 are respectively connected to the lower clamping seat 100 and the movable seat 200, and clamped in the center; two wires 900 are respectively connected or fixed to the pressure head 400 and the pressure seat 300.
[0037] The pressing head 400 and the pressing seat 300 are made of conductive materials such as copper, aluminum, and stainless steel, and the first insulating seat 500 and the second insulating seat 600 are made of insulating materials such as rubber. The bottom of the pressing seat 300 is provided with a first convex end 310, and the first insulating seat 500 and the lower clamping seat 100 are both provided with a first mounting hole 520 matching the first convex end 310, so that the first insulating seat 500 can provide a blocking limit for the battery and facilitate the installation of the pressing seat 300.
[0038] The upper side surface of the lower clamp seat 100 is provided with a first limiting groove 120, and the lower side surface of the upper side surface of the lower clamp seat 100 is provided with a first guide groove 110. The first insulating seat 500 is arranged in the first limiting groove 120. The first insulating seat 500 and the lower clamp seat 100 are both provided with a first mounting hole 520. The first protrusion 310 is inserted into the first mounting hole 520 in sequence, so that the first insulating seat 500 can provide blocking and limiting for the battery, and it is also convenient to install the pressure seat 300.
[0039] The first mounting hole 520 is connected to the first guide groove 110, and the wire 900 extends from the first guide groove 110 and is connected to the first protruding end 310 of the pressing seat 300, so as to facilitate the setting of the wire 900. The first guide groove 110 and the second guide groove 210 are specially provided to facilitate the setting of the wire 900, which are respectively connected to the positive and negative electrodes of the button battery under test. During the compression test, the wire 900 is easy to fall off and is not easy to fall off, and the structure is simple, and the battery clamp is convenient to fix.
[0040] The first insulating seat 500 is provided with two annular limiting ribs 510, which are arranged at intervals on both sides of the pressing seat 300, which is conducive to placing the button battery to be tested on the pressing seat 300 and limiting its position, and when taking out the button battery, the side wall of the button battery can be touched between the two annular limiting baffles, which is convenient for taking out the button battery. In some other embodiments, one or more than three annular limiting baffles can also be provided, and those skilled in the art can set them specifically according to actual conditions.
[0041] The movable seat 200 is provided with a second limiting groove 230, the movable seat 200 is provided with a second insulating seat 600, the second insulating seat 600 is arranged in the second limiting groove 230, the pressure head 400 is provided with a second protrusion 410, the second insulating seat 600 and the movable seat 200 are both provided with a second mounting hole 610 matching the second protrusion 410, and the second mounting hole 610 is connected to the second guide groove 210.
[0042] That is, the first limiting groove 120, the second limiting groove 230, and the first guide groove 110 are partially or completely insulated. The insulation method specifically includes plating, painting, gluing, etc., which effectively prevents the fixture from short-circuiting after assembly.
[0043] The existing clamps also have the problem of uneven pressure when increasing pressure, so the movable seat 200 and the guide column 700 are clearance-matched, and the clearance-matching allows the movable plate to achieve micro-angle free rotation in the space, effectively avoiding uneven force on each point of the battery when clamping the battery due to insufficient part processing accuracy. The movable seat 200 has a floating design and adaptive angle compression.
[0044] It also includes a wire 900, which is an integrated flat metal sheet. Both ends of the wire 900 are provided with openings 910, which effectively prevent the wire 900 from falling off when connecting using the terminal block. The openings 910 are convenient for fixing it to the pressure head 400 or the pressure seat 300 with screws. Only the conductors of the wire 900 are exposed at both ends. The connection method of the wire 900 is screw fastening, welding, conductive adhesive bonding, etc. The wire 900 is made of copper sheet, aluminum sheet, stainless steel sheet, etc. The middle section of the wire 900 needs to be insulated, that is, the middle part of the wire 900 is wrapped with an insulating sleeve, such as a rubber insulating layer.
[0045] Clamping process: manually loosen the clamping screw 810, lift the movable plate, and place the battery to be tested in the limit baffle of the pressure seat 300 adapter block on the pressure seat 300; use a torque wrench to tighten the clamping screw 810 until the torque reaches the preset value and stop applying pressure; clamp the positive and negative test wires of the test equipment to the two wires 900 corresponding to the positive and negative poles of the battery respectively, and the clamping work is completed.
[0046] After the test is completed, remove the test line of the test equipment, loosen the clamping screw 810, lift the movable plate, and take out the tested battery.
[0047] The preferred implementation modes of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A button battery test fixture, characterized in that: It includes a lower clamping seat, a movable seat, a driving structure, a pressure seat, and a pressure head. The pressure seat is arranged on the lower clamping seat, and the lower clamping seat is provided with a first guide groove for connecting the wire and the pressure seat. The pressure head is arranged on the movable seat, and the movable seat is provided with a second guide groove for connecting the wire and the pressure head. The pressure seat and the pressure head are arranged opposite to each other, and the driving structure is used to drive the pressure seat and the pressure head to move closer to or away from each other. The pressure seat and the pressure head are both conductive components, and an insulating layer is provided at the connection between the lower clamping seat, the movable seat, the pressure seat, and the pressure head.
2. A button battery test fixture according to claim 1, characterized in that: The lower clamping seat is provided with a first insulating seat, the pressing seat is provided on the first insulating seat, and the first insulating seat is provided with an annular limiting rib for limiting the battery.
3. A button battery test fixture according to claim 2, characterized in that: The bottom of the pressing seat is provided with a first convex end, and the first insulating seat and the lower clamping seat are both provided with a first mounting hole matching the first convex end.
4. A button battery test fixture according to claim 3, characterized in that: The lower clamping seat is provided with a first limiting groove, the first guiding groove is provided on a side opposite to the first limiting groove, the first insulating seat is provided in the first limiting groove, and the first mounting hole is communicated with the first guiding groove.
5. The button battery test fixture according to claim 1, characterized in that: The movable seat is provided with a second insulating seat, the pressure head is provided with a second convex end, the second insulating seat and the movable seat are both provided with a second mounting hole matching the second convex end, and the second mounting hole is communicated with the second guide groove.
6. A button battery test fixture according to claim 5, characterized in that: The movable seat is provided with a second limiting groove, the second insulating seat is arranged in the second limiting groove, and the second limiting groove is communicated with the second guide groove.
7. The button battery test fixture according to claim 1, characterized in that: It also includes a guide column, the movable seat is slidably sleeved on the guide column, the movable seat and the guide column are in clearance fit, and the driving structure is used to drive the pressure heads to move closer to or away from the pressure seat.
8. The button battery test fixture according to claim 7, characterized in that: The driving structure comprises an upper clamping seat and a clamping screw. The two ends of the guide column are respectively arranged on the lower clamping seat and the upper clamping seat. The clamping screw is threadedly connected to the upper clamping seat and abuts against the movable seat.
9. The button battery test fixture according to claim 1, characterized in that: It also includes a wire, which is an integrated flat metal sheet and has openings at both ends of the wire.
10. The button battery test fixture according to claim 9, characterized in that: The middle part of the wire is wrapped with an insulating sleeve.