Pressing device for battery test

Abstract

The utility model belongs to the technical field of battery test tools, and discloses a battery test pressing device. The battery test pressing device comprises a base, a support, a pressing mechanism and a probe assembly, the support is arranged on the base, the pressing mechanism comprises a fixing frame, a shaft sleeve assembly and a pressing plate, the fixing frame is arranged on the support in a sliding mode and can stop at a preset position, the shaft sleeve assembly is connected with the fixing frame, and the pressing plate is connected with the lifting end of the shaft sleeve assembly. The probe assembly is arranged on the pressing plate, the shaft sleeve assembly can drive the probe assembly to descend or ascend by a preset distance, when batteries of different specifications are fixed, it is guaranteed that the magnitude of pressing force applied to the batteries is fixed, heating caused by large contact resistance at the position of an electrode is prevented, the battery test pressing device can be made to be lower, and the battery test pressing device is more convenient to use. The space volume is saved, the use in a test box is facilitated, and the use range is expanded.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery test frock technical field especially relates to battery test compression device. BACKGROUND

[0002] When the performance of the battery is tested, the battery needs to be fixed to make the test probe and the contact on the battery stable contact.

[0003] The existing battery compression device usually adopts the push forceps to compress the battery, and the handle of the push forceps needs to swing in the vertical direction to compress the battery, and the handle swinging process occupies a large space, resulting in that the volume of the battery compression device is relatively large, and when the battery is used for the first time or is replaced by the battery with different appearance specifications, the user usually needs to adjust the position of the push forceps by visual observation to adapt to the size and shape of the battery, and the adjusting mode depends on the manual experience, and the adjusting distance is prone to being too large or too small, resulting in that the compression force of the push forceps is too large or too small, and then the battery test effect is affected.

[0004] Therefore, the battery test compression device is needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing battery test compression device, can avoid damaging battery, guarantee the reliability of test result, and can save space.

[0006] In order to achieve the purpose, the utility model adopts the following technical scheme:

[0007] The battery test compression device comprises a base, a support, a pressing plate and a compression mechanism.

[0008] The base is provided on the support.

[0009] The support is provided on the base.

[0010] The pressing plate is slidably arranged on the support, and a probe assembly is arranged on the pressing plate.

[0011] The compression mechanism comprises a fixing frame, a handle and a shaft sleeve assembly, the fixing frame is slidably arranged on the support and can be stopped at a preset position, the shaft sleeve assembly is arranged on the fixing frame in the vertical direction, the handle is connected with the input end of the shaft sleeve assembly, the pressing plate is connected with the output end of the shaft sleeve assembly, and the handle rotates along the circumference of the shaft sleeve assembly to drive the pressing plate to ascend or descend by a preset distance.

[0012] Alternatively, the compression mechanism comprises a driving motor and a transmission assembly, the driving motor is arranged on the support, the output end of the transmission assembly is connected with the pressing plate, and the driving motor is configured to drive the pressing plate to ascend or descend by a preset distance.

[0013] Optionally, the shaft sleeve assembly comprises:

[0014] a mounting plate connected with the fixing frame;

[0015] a limiting shaft sleeve detachably arranged on the mounting plate, a side wall of the limiting shaft sleeve being provided with two Z-shaped limiting holes which are centrally symmetrical;

[0016] a rotating shaft rotatably arranged in the limiting shaft sleeve, an upper end of the rotating shaft being connected with the handle, and a lower end of the rotating shaft being rotatably connected with the pressing plate;

[0017] a cylindrical pin penetrating the rotating shaft along a radial direction of the rotating shaft, two ends of the cylindrical pin being slidably arranged in the two Z-shaped limiting holes respectively.

[0018] Optionally, the shaft sleeve assembly further comprises at least two limiting flaps, the two limiting flaps being rotatably arranged on the mounting plate respectively, and the two limiting flaps being used for limiting the handle at an initial position, and the Z-shaped limiting holes being used for controlling a pressing and lifting stroke.

[0019] Optionally, two oblong holes are formed in the pressing plate, and the two oblong holes are located on the same straight line.

[0020] The probe assembly comprises two probe modules, and the two probe modules are movably arranged in the two oblong holes respectively.

[0021] Optionally, the probe module comprises:

[0022] a fixed plate arranged on a lower side of the pressing plate and fastened to the pressing plate by a first fastener;

[0023] an insulating fixed seat fastened to the fixed plate by a second fastener, and the insulating fixed seat being provided with a through hole opposite to the oblong hole;

[0024] a probe slidably penetrating the oblong hole and the through hole;

[0025] a contact and an elastic member, the contact being arranged at a bottom end of the probe, and the elastic member being sleeved on the probe, one end of the elastic member abutting against the contact, and the other end of the elastic member abutting against the insulating fixed seat.

[0026] Optionally, the probe assembly further comprises a fastener arranged at a top end of the probe, and the fastener is used for connecting positive and negative power supply lines.

[0027] Optionally, the support comprises a top plate and at least two guide rods, the at least two guide rods being vertically arranged on the base, the top plate being arranged at top ends of the two guide rods, and the pressing plate being slidably connected with the two guide rods.

[0028] Optionally, the battery test compression device further comprises a positioning plate arranged on the base.

[0029] Optionally, the transmission assembly comprises:

[0030] A rack is arranged on the support in the vertical direction.

[0031] A gear is arranged on the pressing plate in rotation and is engaged with the rack, and the driving motor is arranged on the pressing plate, and the output shaft of the driving motor is coaxially fixed with the gear.

[0032] Optionally, the battery test compression device further comprises a scale arranged on the support in the vertical direction.

[0033] Advantages:

[0034] The battery test compression device provided by the utility model can drive the pressing plate to ascend or descend by a preset distance through the rotation of the handle along the circumferential direction of the shaft sleeve assembly, or directly drive the pressing plate to ascend or descend by a preset distance through the driving motor and the transmission assembly, so that the pressing force of the probe assembly on the battery is fixed and unchanged when fixing batteries of different specifications, and the battery is prevented from being in poor contact and from being damaged due to the heating caused by the large contact resistance at the electrode, the reliability of the test result is ensured, and the battery test compression device is also lower in height, saves space, and is more suitable for use in a test box, thereby expanding the use range. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic view of the battery test compression device provided by the utility model embodiment one;

[0036] Figure 2 is a structural schematic view of the compression mechanism provided by the utility model embodiment one;

[0037] Figure 3 is an exploded view of the compression mechanism provided by the utility model embodiment one;

[0038] Figure 4 is a structural schematic view of the probe assembly provided by the utility model embodiment one.

[0039] In the drawings:

[0040] 100, base; 110, positioning plate;

[0041] 200, support; 210, top plate; 220, guide rod;

[0042] 300, pressing plate; 310, long circular hole; 320, sliding sleeve;

[0043] 400, pressing mechanism; 410, fixed frame; 411, fixed block; 412, sliding hole; 413, notch; 414, first elastic arm; 415, second elastic arm; 416, fixed screw rod; 420, shaft sleeve assembly; 421, mounting plate; 422, limiting shaft sleeve; 4221, Z-shaped limiting hole; 423, rotating shaft; 424, cylindrical pin; 425, limiting baffle; 4251, first baffle; 4252, second baffle; 426, bushing; 430, handle;

[0044] 500, probe assembly; 511, probe; 512, contact; 513, elastic member; 514, fastener; 515, fixed plate; 516, insulating fixed seat. DETAILED DESCRIPTION

[0045] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0046] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0047] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0048] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0049] Example 1

[0050] This embodiment provides a battery testing clamping device, such as... Figures 1-3 As shown, the battery testing clamping device includes a base 100, a bracket 200, a pressure plate 300, and a clamping mechanism 400. The bracket 200 is mounted on the base 100, and the pressure plate 300 is slidably mounted on the bracket 200. A probe assembly 500 is mounted on the pressure plate 300. The clamping mechanism 400 includes a fixing frame 410, a handle 430, and a bushing assembly 420. The fixing frame 410 is slidably mounted on the bracket 200 and can stop at a preset position. The bushing assembly 420 is vertically mounted on the fixing frame 410. The handle 430 and the bushing assembly 420 are connected... The input end of the pressure plate 300 is connected to the output end of the bushing assembly 420. The handle 430 can drive the pressure plate 300 to rise or fall a preset distance by rotating around the bushing assembly 420. This can ensure that the clamping force applied to the battery remains constant when fixing batteries of different specifications, preventing poor battery contact and preventing high contact resistance at the electrodes from causing overheating and damaging the battery. It also makes the battery testing clamping device lower and saves space, making it more suitable for use in test chambers and expanding its application range.

[0051] Optionally, such as Figures 2-3 As shown, the bushing assembly 420 includes a mounting plate 421, a limiting bushing 422, a rotating shaft 423, and a cylindrical pin 424. The mounting plate 421 is connected to the fixing frame 410. The limiting bushing 422 is detachably mounted on the mounting plate 421. The side wall of the limiting bushing 422 is provided with two centrally symmetrical Z-shaped limiting holes 4221. The rotating shaft 423 is rotatably mounted inside the limiting bushing 422. The pressure plate 300 is rotatably connected to the lower end of the rotating shaft 423 and passes through the rotating shaft 423 radially. The two ends of the cylindrical pin 424 are respectively... The sliding setting is located within two Z-shaped limiting holes 4221, thereby converting the rotation of the rotating shaft 423 into a linear motion in the vertical direction, improving space utilization. Furthermore, the cooperation between the Z-shaped limiting holes 4221 in the limiting bushing 422 and the cylindrical pin 424 ensures that the rotation of the rotating shaft 423 proceeds along a preset path, ensuring that the lifting distance of the pressure plate 300 remains constant. This avoids problems of excessive or insufficient clamping force due to improper operation, ensuring that the clamping force is the same each time and improving the reliability of the test results.

[0052] Optionally, the shaft 423 is sleeved with a bushing 426, the bushing 426 is coaxially fixed with the shaft 423, the cylindrical pin 424 transversely penetrates the shaft 423 and the bushing 426, and two ends of the cylindrical pin 424 are respectively slidably arranged in the two Z-shaped limiting holes 4221, so that the rotation of the shaft 423 is more stable, and the shaft 423 is prevented from shaking.

[0053] Optionally, as shown in Figure 2 the shaft sleeve assembly 420 further includes at least two limiting flaps 425, the two limiting flaps 425 are respectively rotationally arranged on the mounting plate 421, and the two limiting flaps 425 are used for limiting the handle 430 at an initial position to prevent the handle 430 from being accidentally rotated. The Z-shaped limiting hole 4221 is used for controlling the pressing and lifting stroke, so as to ensure that the battery test pressing device operates within a preset parameter range, which can prevent the battery from being damaged due to excessive pressing, and can also prevent the test operation from being affected due to insufficient lifting.

[0054] Optionally, as shown in Figure 1 the pressing plate 300 is provided with two long circular holes 310 located on the same straight line; the probe assembly 500 includes two probe modules, and the two probe modules are respectively movably arranged in the two long circular holes 310, so that the distance between the two probe modules can be adjusted, thereby adapting to the distance between the positive contact and the negative contact on batteries of different specifications, and the adaptability of the probe assembly 500 is improved.

[0055] Optionally, as shown in Figure 4 the probe module includes a probe 511, a contact 512, an elastic member 513, and a fixed plate 515, the fixed plate 515 is arranged on the lower side of the pressing plate 300 and is fastened to the pressing plate 300 by a first fastener, an insulating fixed seat 516 is fastened to the fixed plate 515 by a second fastener, the insulating fixed seat 516 is provided with a through hole opposite to the long circular hole 310, the probe 511 is slidably arranged in the long circular hole 310 and the through hole, the contact 512 is arranged at the bottom end of the probe 511, the elastic member 513 is sleeved on the probe 511, one end of the elastic member 513 abuts against the contact 512, and the other end of the elastic member 513 abuts against the insulating fixed seat 516. The probe 511 module has a simple structure and is convenient for quick disassembly and assembly, and the test efficiency is further improved. In the embodiment, the first fastener and the second fastener are both fastening screws.

[0056] Optionally, the elastic member 513 is a spring, which can provide stable pressure for the probe 511, ensure that the probe 511 is in good contact with the contacts on the battery, and improve the accuracy and reliability of the test results.

[0057] Optionally, as shown in Figure 4As shown, the probe 511 assembly 500 further comprises a fastener 514 arranged at the top end of the probe 511 for connecting the positive and negative power supply lines, and the positive and negative power supply lines are firmly connected to the probe 511 by a mechanical fixing mode, thereby improving the stability of the connection of the positive and negative power supply lines and the reliability of the test circuit. In the embodiment, the fastener 514 is a fastening nut, and at least two fastening nuts are arranged at the top end of each probe 511 to clamp the positive and negative power supply lines by the fastening force.

[0058] Optionally, the support 200 comprises a top plate 210 and at least two guide rods 220 vertically arranged on the base 100, and the top plate 210 is arranged at the top end of the two guide rods 220, and the pressing plate 300 is in sliding connection with the two guide rods 220, thereby ensuring that the pressing plate 300 moves up and down more stably.

[0059] Optionally, the pressing mechanism 400 further comprises a sliding sleeve 320, which is in sliding connection with the guide rod 220, and the sliding sleeve 320 is fixedly connected with the pressing plate 300, thereby further reducing the friction between the pressing plate 300 and the guide rod 220 and improving the stability of the pressing plate 300 moving up and down.

[0060] Optionally, as shown, Figure 2 The fixing frame 410 comprises a fixing block 411 and a fixing screw rod 416, both ends of the fixing block 411 are respectively provided with sliding holes 412, the side wall of the sliding hole 412 is provided with an opening 413, the two sides of the opening 413 form a first elastic arm 414 and a second elastic arm 415, the fixing screw rod 416 is sequentially arranged in the first elastic arm 414 and the second elastic arm 415 and is in threaded connection with the second elastic arm 415, and the fixing screw rod 416 can make the two elastic arms approach or move away from each other, so as to fix the fixing block 411 on the guide rod 220 or make the fixing block 411 slide along the guide rod 220. In the embodiment, the fixing screw rod 416 is a threaded rod, the first elastic arm 414 is provided with a light hole, the second elastic arm 415 is provided with a threaded hole, and the threaded rod is sequentially arranged in the light hole and the threaded hole and is in threaded connection with the second elastic arm 415.

[0061] Optionally, in order to facilitate the rotation of the fixing screw rod 416, a handle is arranged on the threaded rod, which is convenient for users to hold and rotate.

[0062] Optionally, as shown, Figure 1 The battery test pressing device further comprises a positioning plate 110 arranged on the base 100, which can accurately define the placement position of the battery, thereby avoiding the problem that the test is inaccurate or the probe 511 cannot be aligned with the positive and negative electrode contacts of the battery due to the deviation of the battery position.

[0063] Specifically, the two probe modules are defined as a positive probe module and a negative probe module, and the two limit flaps 425 are respectively a first flap 4251 and a second flap 4252, which are used to limit the handle 430 to the initial position.

[0064] The test process of the battery test compression device provided in the embodiment is as follows:

[0065] Firstly, the battery to be tested is placed on the base 100, the positive lead and the negative lead are connected to the positive probe module and the negative probe module respectively, the fastening nuts on the positive probe module and the negative probe module are loosened, the distance between the positive probe module and the negative probe module is equal to the distance between the positive contact and the negative contact on the battery, and the fastening nuts are tightened.

[0066] Secondly, the handle 430 is turned to the middle position, and then the first flap 4251 and the second flap 4252 are pushed upwards to prevent the handle 430 from rotating.

[0067] Then, the fixing screw rod 416 on the fixing frame 410 is loosened, and the movable parts such as the fixing frame 410 and the pressing plate 300 naturally fall down. After the positive probe module and the negative probe module respectively abut against the positive contact and the negative contact and are stable, the fixing screw rod 416 is tightened, so that the position of the fixing frame 410 in the vertical direction is fixed.

[0068] Finally, the first flap 4251 and the second flap 4252 are pushed downwards, and then the handle 430 is turned to the left, so that the pressing plate 300 descends, and the positive probe module and the negative probe module tightly abut against the positive contact and the negative contact of the battery respectively, thereby realizing the fixation of the battery and preventing the contact at the positive and negative electrodes of the battery from loosening.

[0069] Embodiment Two

[0070] The battery test compression device provided in the embodiment is basically the same as that in Embodiment One, and the difference between them is that the compression mechanism 400 comprises a driving motor and a transmission assembly. The transmission assembly comprises a rack and a gear. The rack is arranged on the guide rod 220 in the vertical direction, and the gear is rotatably arranged on the pressing plate 300 and engaged with the rack. The driving motor is arranged on the pressing plate 300. The output shaft of the driving motor is coaxially fixed with the gear. The driving motor directly drives the gear to rotate. The gear and the rack are engaged for power transmission. The automatic lifting or lowering of the pressing plate 300 can be easily realized without manual adjustment, which greatly reduces the labor intensity of operation. In addition, the engagement of the gear and the rack can accurately control the moving distance of the pressing plate 300, ensure the smooth and non-shaking lifting action, and thus improve the uniformity and stability of the compression force in the test process.

[0071] Optionally, the battery test compression device further comprises a scale arranged on the support 200 in the vertical direction, which provides clear visual marks for the user, helps to monitor the lifting position of the pressing plate 300 in real time, ensures the accurate adjustment of the lifting distance, and avoids human errors.

[0072] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A battery test compression device, characterized by, The utility model relates to a probe module and a probe module lifting mechanism, and belongs to the technical field of probe module lifting mechanism. It comprises a base (100), a support (200) arranged on the base (100), a pressing plate (300) slidingly arranged on the support (200), and a probe assembly (500) arranged on the pressing plate (300). The pressing plate (300) is connected with an output end of a shaft sleeve assembly (420) arranged on the fixed frame (410) in a vertical direction, and the handle (430) is connected with an input end of the shaft sleeve assembly (420). The handle (430) is configured to drive the pressing plate (300) to ascend or descend by a preset distance through rotation along a circumferential direction of the shaft sleeve assembly (420). Alternatively, the pressing mechanism (400) comprises a driving motor and a transmission assembly, the driving motor is arranged on the support (200), an output end of the transmission assembly is connected with the pressing plate (300), and the driving motor is configured to drive the pressing plate (300) to ascend or descend by a preset distance. The shaft sleeve assembly (420) comprises a mounting plate (421) connected with the fixed frame (410), a limiting shaft sleeve (422) detachably arranged on the mounting plate (421), and a rotating shaft (423) rotatably arranged in the limiting shaft sleeve (422).

2. The battery test compression apparatus of claim 1, wherein, The limiting shaft sleeve (422) is provided with two Z-shaped limiting holes (4221) which are centrally symmetrical. The rotating shaft (423) is connected with the handle (430) at an upper end thereof and is rotatably connected with the pressing plate (300) at a lower end thereof. A cylindrical pin (424) penetrates the rotating shaft (423) in a radial direction of the rotating shaft (423), and two ends of the cylindrical pin (424) are slidingly arranged in the two Z-shaped limiting holes (4221), respectively. The shaft sleeve assembly (420) further comprises at least two limiting flaps (425) rotatably arranged on the mounting plate (421), and the two limiting flaps (425) are used for limiting the handle (430) at an initial position. The Z-shaped limiting holes (4221) are used for controlling a pressing and lifting stroke.

3. The battery test compression apparatus of claim 2, wherein, The pressing plate (300) is provided with two long circular holes (310) arranged on the same straight line.

4. The battery test compression apparatus of claim 1, wherein, The probe assembly (500) comprises two probe (511) modules movably arranged in the two long circular holes (310), respectively. The probe (511) module comprises a fixed plate (515) arranged on a lower side of the pressing plate (300) and fastened to the pressing plate (300) through a first fastener, and an insulating fixed seat (516) fastened to the fixed plate (515) through a second fastener.

5. The battery test compression apparatus of claim 4, wherein, The insulating fixed seat (516) is provided with a through hole opposite to the long circular hole (310). ​ ​ A probe (511) is arranged to slide through the long hole (310) and the through hole; A contact (512) is arranged at the bottom end of the probe (511), and an elastic member (513) is sleeved on the probe (511), one end of the elastic member (513) abuts against the contact (512), and the other end abuts against an insulating fixed seat (516).

6. The battery test compression apparatus of claim 5, wherein, The probe (511) assembly (500) further comprises a fastener (514) arranged at the top end of the probe (511) for connecting the positive and negative power supply lines.

7. The battery test compression apparatus of claim 1, wherein, The support (200) comprises a top plate (210) and at least two guide rods (220), the at least two guide rods (220) are arranged vertically on the base (100), the top plate (210) is arranged at the top end of the two guide rods (220), and the pressing plate (300) is in sliding connection with the two guide rods (220).

8. The battery test compression apparatus of claim 1, wherein, The battery test compression device further comprises a positioning plate (110) arranged on the base (100).

9. The battery test compression apparatus of any of claims 1-8, wherein, The transmission assembly comprises: A rack is arranged vertically on the support (200); A gear is arranged rotatably on the pressing plate (300) and is in engagement with the rack, the driving motor is arranged on the pressing plate (300), and the output shaft of the driving motor is coaxially fixed with the gear.

10. The battery test compression apparatus of claim 9, wherein, The battery test compression device further comprises a scale arranged vertically on the support (200).

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