CN220603659U - High-precision battery internal resistance tester - Google Patents

Abstract

The utility model relates to the technical field of battery internal resistance testers and discloses a high-precision battery internal resistance tester which comprises a bottom plate, wherein fixed columns are fixedly connected to two sides of the upper end face of the bottom plate, driving grooves are formed in opposite sides of the two fixed columns, two bidirectional threaded rods are rotatably connected between inner walls of the upper end and the lower end of the two driving grooves, an upper sliding seat and a lower sliding seat are respectively sleeved on outer walls of two ends of the two bidirectional threaded rods in a threaded manner, and a movable plate is fixedly connected between the two upper sliding seats and the two lower sliding seats. According to the utility model, the purpose of better automatic adjustment and test can be achieved through the set function of automatically adjusting the probe test, so that the purpose of higher efficiency use and test can be achieved, meanwhile, the purpose of better clamping batteries of different types can be achieved through the set adjustable clamping function, so that the benefit of better automatic test can be achieved, and the device has better practicability and convenience.

Description

High-precision battery internal resistance tester

Technical Field

The utility model relates to the technical field of battery internal resistance testers, in particular to a high-precision battery internal resistance tester.

Background

In daily life, the battery plays a role in importance, so that the battery has the advantage of more convenient use when being used for electrical equipment, the battery is monitored by an internal resistance tester when leaving the factory, the internal resistance tester is used for measuring the internal resistance of the battery and the damage degree of an acidification film of the battery, a 1KHz alternating current signal is applied to a tested object, and the internal resistance is obtained by measuring the alternating current voltage drop of the battery.

At present, the internal resistance of cylindrical lithium ion batteries is mainly tested by many domestic lithium ion battery manufacturers mainly through manual operation, so that the labor capacity is excessive for mass production, the production efficiency is low, the measurement errors caused by human factors are more, and the internal resistance of the batteries cannot be accurately measured. Accordingly, a high-precision battery internal resistance tester is provided by those skilled in the art to solve the problems set forth in the background art.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a high-precision battery internal resistance tester, which can achieve the purposes of better automatic adjustment and test through the function of the automatic adjustment probe, further achieve the purposes of higher efficiency use and test, and achieve the purpose of better clamping batteries of different types through the adjustable clamping function, further achieve the benefits of better automatic test, and have better practicability and convenience.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a high accuracy battery internal resistance tester, includes the bottom plate, the up end both sides of bottom plate all are fixedly connected with fixed column, two the drive slot has all been seted up to the relative one side of fixed column, two all rotate between the upper and lower end inner wall of drive slot is connected with two-way threaded rod, two respectively the thread bush is equipped with upper slide seat and lower slide seat on the both ends outer wall of two-way threaded rod, two all fixedly connected with movable plate between upper slide seat and the two lower slide seat, two the relative one side of movable plate is fixed respectively and is provided with two upper probes and two lower probes near the front;

an auxiliary rod is fixedly connected to the middle part of the upper end face of the movable plate near the lower end, a working plate is fixedly connected to the upper end face of the auxiliary rod, two mounting plates are fixedly connected to two sides of the front end face of the working plate, hydraulic cylinders are fixedly arranged at the centers of two opposite sides of the two mounting plates on the same side, and clamping protection pads are fixedly connected to movable ends of the hydraulic cylinders;

through above-mentioned technical scheme, two bidirectional threaded rods synchronous pivoted purpose, and then can reach the purpose to last sliding seat and lower sliding seat relative movement, and then can reach the purpose of going up probe and probe removal down, and then reach the purpose of testing the battery internal resistance, the regulation of interval also can reach the battery measuring purpose to different models simultaneously, and then reach better high-efficient use's purpose, the hydraulic cylinder work through setting drives the centre gripping protection pad work and makes can reach the purpose to the battery centre gripping of being tested, and then reach convenient test effect, also can reach better battery according to different models through the adjustability of hydraulic cylinder self and reach centre gripping test effect simultaneously.

Further, one ends of the two upper sliding seats and the two lower sliding seats, which are far away from the moving plate, are fixedly connected with limiting sliding blocks, limiting sliding grooves are formed in the inner walls of the opposite sides of the two driving grooves, and a plurality of limiting sliding blocks are respectively arranged in the corresponding limiting sliding grooves in a sliding manner;

through above-mentioned technical scheme, through the slip setting of spacing slider in spacing spout, and then can reach better purpose to last sliding seat and lower sliding seat stable movement, have better practicality.

Further, the upper end faces of the two fixing columns are fixedly connected with a top plate, the lower end face of the top plate is provided with a transmission groove, one side of the upper end face of the top plate is fixedly provided with a driving motor, the upper end of a bidirectional threaded rod close to the driving motor penetrates through the fixing columns and the top plate to the outside and is fixedly connected with the output end of the driving motor, the upper end face of the bidirectional threaded rod far away from the driving motor penetrates through the fixing columns and is rotatably arranged in the transmission groove, the outer walls of the two bidirectional threaded rods positioned in the transmission groove are respectively fixedly sleeved with a driving gear and a driven gear, and the outer walls of the driving gear and the driven gear are fixedly sleeved with a transmission rack;

through above-mentioned technical scheme, drive the rotation of the two-way threaded rod who connects with it through driving motor work, two-way threaded rod rotates and drives the driving gear and rotate so that reaches driven gear pivoted purpose under the drive rack effect.

Further, fixing seats are fixedly connected to the front portions of two sides of the opposite ends of the two moving plates, buffer rods are fixedly connected to the other ends of the plurality of fixing seats, fixing rods are fixedly connected to the centers of the opposite sides of the two fixing columns, buffer driving cylinders are fixedly connected to the opposite sides of the two fixing rods, moving grooves are formed in the upper end face and the lower end face of each buffer driving cylinder, reset springs are fixedly connected to the moving grooves, buffer cushions are fixedly connected between the other ends of the two reset springs located in the same moving groove, and the buffer rods are respectively in contact with the corresponding buffer cushions;

through above-mentioned technical scheme, the pressure effect through the buffer rod to the blotter makes and reaches the effect of buffering protection under reset spring's effect, avoids the problem of damage in test metal department because of the atress is too big, has better practicality and protectiveness.

Further, auxiliary sliding blocks are fixedly connected to two sides of the buffer pads, auxiliary sliding grooves are formed in inner walls of two sides of the moving grooves, and the auxiliary sliding blocks are respectively arranged in the corresponding auxiliary sliding grooves in a sliding mode;

through above-mentioned technical scheme, through the slip setting of auxiliary slide block in auxiliary spout and then can reach the purpose to the stable removal of blotter in the removal inslot for can reach better stabilization when using.

Further, the front end surfaces of the two fixing columns are respectively fixedly provided with a display and a switch button;

through above-mentioned technical scheme, can reach better data display effect through the display that sets up, then can reach better function to the device switching on and off through the shift knob that sets up simultaneously, have better practicality.

Further, the clamping protection pad is made of rubber materials;

through the technical scheme, the clamping protection pad made of rubber materials can achieve better protection effect.

Further, the return spring is made of carbon spring steel materials;

through the technical scheme, the spring stiffness is more stable through the reset spring made of carbon spring steel materials.

The utility model has the following beneficial effects:

1. according to the high-precision battery internal resistance tester, the driving motor is used for driving the bidirectional threaded rod connected with the driving motor to rotate, the bidirectional threaded rod rotates to drive the driving gear to rotate under the action of the transmission rack, the purpose of synchronously rotating the two bidirectional threaded rods is achieved, the purpose of relatively moving the upper sliding seat and the lower sliding seat is achieved, the purpose of relatively moving the upper probe and the lower probe is achieved, the purpose of testing the battery internal resistance is achieved, meanwhile, the purpose of measuring batteries of different types is achieved through adjustment of the interval, the purpose of better and efficient use is achieved, finally, the effect of buffer protection is achieved under the action of the buffer rod on the buffer cushion, the problem of damage to a tested metal part caused by overlarge stress is avoided, and the high practicability and the protection are achieved.

2. According to the high-precision battery internal resistance tester, the clamping protection pad is driven to work through the hydraulic cylinder, so that the purpose of clamping a tested battery can be achieved, a convenient testing effect is achieved, meanwhile, the clamping testing effect can be achieved according to batteries of different types better through the adjustability of the hydraulic cylinder, and the high-precision battery internal resistance tester has better practicability and multiple-range usability.

3. According to the high-precision battery internal resistance tester, the purpose of better automatic adjustment and testing can be achieved through the function of the automatic adjustment probe, the purpose of higher-efficiency use and testing can be achieved, meanwhile, the purpose of better clamping batteries of different types can be achieved through the adjustable clamping function, the advantage of better automatic testing can be achieved, and the high-precision battery internal resistance tester has better practicability and convenience.

Drawings

FIG. 1 is a schematic front sectional view of a high-precision battery internal resistance tester according to the present utility model;

FIG. 2 is a schematic axial view of a working plate of a high-precision battery internal resistance tester according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1;

FIG. 4 is a schematic view of a part of the moving plate of the high-precision battery internal resistance tester according to the present utility model;

fig. 5 is a schematic front view of a high-precision battery internal resistance tester according to the present utility model.

Legend description:

1. a bottom plate; 2. fixing the column; 3. a driving groove; 4. a two-way threaded rod; 5. an upper sliding seat; 6. a limit sliding block; 7. limiting sliding grooves; 8. a lower sliding seat; 9. a moving plate; 10. a lower probe; 11. a fixing seat; 12. a buffer rod; 13. a probe is arranged; 14. a fixed rod; 15. a buffer driving cylinder; 16. a moving groove; 17. a return spring; 18. a cushion pad; 19. an auxiliary slide block; 20. an auxiliary chute; 21. a top plate; 22. a transmission groove; 23. a driving motor; 24. a drive gear; 25. a driven gear; 26. a drive rack; 27. an auxiliary lever; 28. a work plate; 29. a mounting plate; 30. a hydraulic cylinder; 31. clamping the protection pad; 32. a display; 33. a switch button.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, one embodiment provided by the present utility model is: the utility model provides a high accuracy battery internal resistance tester, including bottom plate 1, the up end both sides of bottom plate 1 all fixedly connected with fixed column 2, drive slot 3 has all been seted up to the opposite one side of two fixed columns 2, all rotate between the upper and lower end inner wall of two drive slots 3 and be connected with two-way threaded rod 4, respectively the thread bush is equipped with upper slide seat 5 and lower slide seat 8 on the both ends outer wall of two-way threaded rod 4, all fixedly connected with movable plate 9 between two upper slide seat 5 and two lower slide seat 8, two upper probe 13 and two lower probe 10 are fixed respectively in the opposite one side of two movable plate 9 near the front;

the middle part of the upper end face of the movable plate 9 near the lower end is fixedly connected with an auxiliary rod 27 near the rear part, the upper end face of the auxiliary rod 27 is fixedly connected with a working plate 28, two mounting plates 29 are fixedly connected to two sides of the front end face of the working plate 28, hydraulic cylinders 30 are fixedly arranged at the centers of two opposite sides of the two mounting plates 29 on the same side, and movable ends of the hydraulic cylinders 30 are fixedly connected with clamping protection pads 31.

The two upper sliding seats 5 and the two lower sliding seats 8 are fixedly connected with the limit sliding blocks 6 at the ends far away from the moving plate 9, limit sliding grooves 7 are formed in the inner walls of the opposite sides of the two driving grooves 3, a plurality of limit sliding blocks 6 are respectively arranged in the corresponding limit sliding grooves 7 in a sliding manner, the aim of better stably moving the upper sliding seats 5 and the lower sliding seats 8 can be achieved through the sliding arrangement of the limit sliding blocks 6 in the limit sliding grooves 7, the practicability is better, the upper end faces of the two fixing columns 2 are fixedly connected with the top plate 21, the lower end face of the top plate 21 is provided with the driving groove 22, one side of the upper end face of the top plate 21 is fixedly provided with the driving motor 23, the upper end of the bidirectional threaded rod 4 close to the driving motor 23 penetrates through the fixing columns 2 and the top plate 21 to the outside and is fixedly connected with the output end of the driving motor 23, the upper end face of the bidirectional threaded rod 4 far away from the driving motor 23 penetrates through the fixing columns 2 and is rotationally arranged in the driving groove 22, the outer walls of the two bidirectional threaded rods 4 positioned in the transmission groove 22 are fixedly sleeved with a driving gear 24 and a driven gear 25 respectively, the outer walls of the driving gear 24 and the driven gear 25 are fixedly sleeved with a transmission rack 26, the bidirectional threaded rods 4 connected with the driving gear are driven to rotate by the operation of a driving motor 23, the bidirectional threaded rods 4 rotate to drive the driving gear 24 to rotate so as to achieve the purpose of rotating the driven gear 25 under the action of the transmission rack 26, the front parts of two opposite ends of two movable plates 9 are fixedly connected with fixed seats 11, the other ends of the fixed seats 11 are fixedly connected with buffer rods 12, the centers of two opposite sides of the two fixed columns 2 are fixedly connected with fixed rods 14, the opposite sides of the two fixed rods 14 are fixedly connected with buffer driving cylinders 15, the upper end surfaces and the lower end surfaces of the two buffer driving cylinders 15 are provided with movable grooves 16, all fixedly connected with reset spring 17 in a plurality of removal grooves 16, be located the equal fixedly connected with blotter 18 between the other end of two reset springs 17 of same removal groove 16, a plurality of buffer rods 12 respectively with the corresponding blotter 18 contactable setting, the effect of buffer protection is reached under the effect of reset spring 17 through the pressure effect of buffer rod 12 to blotter 18, avoid the problem of damage because of the too big test metal department that leads to of atress, better practicality and protectiveness have, the equal fixedly connected with auxiliary slide 19 in both sides of a plurality of blotters 18, auxiliary slide groove 20 has all been seted up to the both sides inner wall of a plurality of removal grooves 16, a plurality of auxiliary slide 19 slide and set up in corresponding auxiliary slide groove 20 respectively, the slip setting through auxiliary slide 19 in auxiliary slide groove 20 and then can reach the purpose of stable removal in removal groove 16 to the blotter 18, make can reach better stable effect when using, the preceding terminal surface of two fixed posts 2 is fixed respectively and is provided with display 32 and shift knob 33, the data display effect that can be better through setting up, simultaneously, the carbon protection button can reach better carbon protection device through setting up and adopt the better function to make the spring 17 and adopt the practicality to have the spring to hold-down device.

Working principle: when the battery clamping device is used, the bidirectional threaded rod 4 connected with the device is driven to rotate through the operation of the driving motor 23, the driving gear 24 is driven to rotate through the rotation of the bidirectional threaded rod 4, the purpose of rotating the driven gear 25 is achieved under the action of the driving rack 26, the purpose of synchronously rotating the two bidirectional threaded rods 4 is achieved, the purpose of relatively moving the upper sliding seat 5 and the lower sliding seat 8 is achieved, the purpose of moving the upper probe 13 and the lower probe 10 is achieved, the purpose of testing the internal resistance of the battery is achieved, meanwhile, the purpose of measuring batteries of different types can be achieved through the adjustment of the interval, the purpose of better and efficient use is achieved, the effect of buffer protection is achieved under the action of the buffer rod 12 on the buffer cushion 18, the problem of damage to the tested metal caused by overlarge stress is avoided, the purpose of clamping the tested battery can be achieved through the operation of the arranged hydraulic cylinder 30, the convenient testing effect is achieved, and meanwhile the purpose of testing the battery can be achieved according to the different types through the fact that the hydraulic cylinder 30 is adjustable.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (8)

1. The utility model provides a high accuracy battery internal resistance tester, includes bottom plate (1), its characterized in that: the two sides of the upper end face of the bottom plate (1) are fixedly connected with fixed columns (2), one side opposite to each fixed column (2) is provided with a driving groove (3), two inner walls of the upper end and the lower end of each driving groove (3) are respectively and rotatably connected with a bidirectional threaded rod (4), two outer walls of the two ends of each bidirectional threaded rod (4) are respectively and spirally sleeved with an upper sliding seat (5) and a lower sliding seat (8), a movable plate (9) is fixedly connected between each upper sliding seat (5) and each lower sliding seat (8), and two upper probes (13) and two lower probes (10) are respectively and fixedly arranged on the front sides of the opposite sides of the two movable plates (9);

the middle part of the upper end face of the movable plate (9) near the lower end is fixedly connected with an auxiliary rod (27) near the rear part, the upper end face of the auxiliary rod (27) is fixedly connected with a working plate (28), two mounting plates (29) are fixedly connected to two sides of the front end face of the working plate (28), hydraulic cylinders (30) are fixedly arranged at the centers of two opposite sides of the two mounting plates (29) located on the same side, and a plurality of movable ends of the hydraulic cylinders (30) are fixedly connected with clamping protection pads (31).

2. The high-precision battery internal resistance tester according to claim 1, wherein: two go up sliding seat (5) and two one end that sliding seat (8) kept away from movable plate (9) down are all fixedly connected with spacing slider (6), two spacing spout (7) have all been seted up on the inner wall of one side of being opposite to of drive slot (3), a plurality of spacing slider (6) slide respectively and set up in spacing spout (7) that correspond.

3. The high-precision battery internal resistance tester according to claim 1, wherein: the two up end fixedly connected with roof (21) of fixed column (2), transmission groove (22) have been seted up to the lower terminal surface of roof (21), the up end one side of roof (21) is fixed to be provided with driving motor (23), is close to the upper end of the two-way threaded rod (4) of driving motor (23) runs through fixed column (2) and roof (21) to outside and with driving motor (23) output fixed connection, keep away from the up end of the two-way threaded rod (4) of driving motor (23) runs through fixed column (2) and rotates to set up in transmission groove (22), is located fixed cover is equipped with driving gear (24) and driven gear (25) on the outer wall of two-way threaded rod (4) in transmission groove (22) respectively, fixed cover is equipped with drive rack (26) on the outer wall of driving gear (24) and driven gear (25).

4. The high-precision battery internal resistance tester according to claim 1, wherein: two the equal fixedly connected with fixing base (11) of relative one end both sides of movable plate (9) are leaned on preceding department, and is a plurality of the equal fixedly connected with buffer rod (12) of the other end of fixing base (11), two equal fixedly connected with dead lever (14) in the center department of the relative one side of dead lever (2), two equal fixedly connected with buffer drive section of thick bamboo (15) in the relative one side of dead lever (14), two movable groove (16) have all been seted up to the up and down terminal surface of buffer drive section of thick bamboo (15), a plurality of all fixedly connected with reset spring (17) in movable groove (16), all fixedly connected with blotter (18) between the other end of two reset spring (17) that are located same movable groove (16), a plurality of buffer rod (12) respectively with corresponding blotter (18) contactable setting.

5. The high-precision battery internal resistance tester according to claim 4, wherein: auxiliary sliding blocks (19) are fixedly connected to two sides of the buffer cushion (18), auxiliary sliding grooves (20) are formed in inner walls of two sides of the movable groove (16), and the auxiliary sliding blocks (19) are respectively arranged in the corresponding auxiliary sliding grooves (20) in a sliding mode.

6. The high-precision battery internal resistance tester according to claim 1, wherein: the front end surfaces of the two fixing columns (2) are respectively fixedly provided with a display (32) and a switch button (33).

7. The high-precision battery internal resistance tester according to claim 1, wherein: the clamping protection pad (31) is made of rubber materials.

8. The high-precision battery internal resistance tester according to claim 4, wherein: the return spring (17) is made of carbon spring steel.