CN220709191U - High-stability battery detection jig - Google Patents

Abstract

The utility model discloses a high-stability battery detection jig, which belongs to the field of battery detection jigs, and comprises a base, two testing mechanisms and an opening and closing mechanism, wherein the two testing mechanisms are respectively arranged on two sides of an inner cavity of the base and are used for clamping two leading-out nickel sheets of a button battery; the opening and closing mechanism is arranged in the middle of the inner cavity of the base, two ends of the opening and closing mechanism penetrate through two side walls of the base, and the opening and closing mechanism is used for driving the two testing mechanisms to move in an opening and closing mode; the middle gear is inserted in the middle of the top surface of the base, the button battery finished product can be conveniently and rapidly tested by an operator, the working efficiency is improved, and the contact surfaces of the two testing mechanisms and the lead-out nickel sheet are smooth, so that the two testing mechanisms can be fully contacted with the pole piece of the test battery, and the testing value is more accurate.

Description

High-stability battery detection jig

Technical Field

The utility model relates to the field of battery detection jigs, in particular to a battery detection jig with high stability.

Background

Button cells (button cells) are also called button cells, and are cells with a large external dimension like a small button, and generally have a larger diameter and a thinner thickness (compared with columnar cells such as 5 AA on the market, etc.), the button cells are classified from the external dimension into columnar cells, square cells and special-shaped cells, however, after specific processing, after the anode and the cathode of the cells are welded with two lead-out nickel plates, the voltage internal resistance test of the finished product of the button cells is often needed.

The voltage internal resistance test of the finished button battery product cannot be carried out by damaging the size and the shape of the tab, if a test pen or a test clamp is used, the phenomenon of inaccurate internal resistance value of the tested button battery caused by poor contact is easy to occur, and in addition, the button battery is small in size, the size of the test pen or the test clamp is relatively large, the test operation is inconvenient, and the efficiency is low, so that a battery detection jig with high stability is provided to solve the problems.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the utility model aims to provide the battery detection jig with high stability, which can facilitate an operator to rapidly test a finished product of the button battery, improve the working efficiency, and the contact surface between the two test mechanisms and the lead-out nickel sheet is smooth, so that the contact between the two test mechanisms and the pole piece of the test battery is sufficient, and further the test value is more accurate.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The battery detection jig with high stability comprises a base and further comprises two testing mechanisms, wherein the two testing mechanisms are respectively arranged on two sides of an inner cavity of the base and are used for clamping two leading-out nickel sheets of a button battery;

the opening and closing mechanism is arranged in the middle of the inner cavity of the base, two ends of the opening and closing mechanism penetrate through two side walls of the base, and the opening and closing mechanism is used for driving the two testing mechanisms to open and close;

the middle gear is inserted in the middle of the top surface of the base, is positioned between the two test mechanisms and is arranged in parallel, and is used for placing the button battery; and

the cross bars are arranged in two, the two cross bars are respectively arranged at the two sides of the middle rail, and two ends of the cross bars are respectively connected with the top surface of the base.

Further, the method comprises the steps of: the test mechanism comprises a spring seat arranged on the side wall of the base, a test conductor is arranged at the top of the outer wall of the spring seat, an OT terminal is arranged at the bottom end of the test conductor, a sliding rod is arranged on the surface of the other side of the spring seat, one end of the sliding rod is movably connected with the side wall of the inner cavity of the base in an inserting mode, a spring is sleeved on the sliding rod, and the spring is used for providing elasticity for the spring seat;

limiting grooves are formed in the bottoms of the side walls of the spring seat and located on the test conductors, and jacking blocks are arranged in the inner cavities of each limiting groove.

Further, the sliding sleeve is sleeved on the outer side of the spring and used for being inserted into the side wall of the inner cavity of the base, and the sliding sleeve is used for limiting and guiding the spring.

Further, three sliding rods are arranged and are distributed in a triangular mode.

Further, the front view shape of the limiting groove is the same as the front view shape of the top block, and the limiting groove and the top block are connected in an inserting mode.

Furthermore, the surface of the top block is provided with a stepped hole, a positioning screw is inserted into the inner cavity of the stepped hole, and one end of the positioning screw is connected with the side wall of the spring seat in a rotating way.

Further, the head of the positioning screw is positioned in the inner cavity of the stepped hole.

Further, the opening and closing mechanism comprises a torsion bar, lantern rings are sleeved on the torsion bar and close to the two ends, and the two lantern rings are respectively inlaid in the middle parts of two side walls of the base.

Further, annular grooves are formed in the torsion bar and located on the outer side of each lantern ring, snap springs are arranged in the inner cavities of the annular grooves, and the snap springs are located on the outer side of the base.

Furthermore, the middle rail and the transverse bar are made of insulating materials.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) According to the scheme, when the battery to be tested needs to be tested, the opening and closing mechanism is twisted by an operator, so that the opening and closing mechanism can be used for supporting the two testing mechanisms, the two testing mechanisms can be opened, then the battery to be tested is placed at the middle position of a middle gear, then the opening and closing mechanism is loosened, so that the two testing mechanisms can be closed, the battery can be clamped, then testing is started, when the testing is completed, the opening and closing mechanism is twisted again, the operator can conveniently take out the battery, the two leading-out nickel sheets of the battery to be tested can be prevented from contacting the same testing mechanism through the two transverse bars positioned at the two sides of the middle gear, and then the battery to be tested can be prevented from being shorted.

(2) According to the scheme, the elastic seat in the testing mechanism can be arranged on the side wall of the base, the testing conductor can be fixedly arranged, and the testing conductor can be connected with external detection equipment through the testing conductor, so that the battery can be conveniently detected by the detection equipment, the elastic seat can be movably inserted into the side wall of the inner cavity of the base, one end of the elastic seat can be fixed on the side wall of the elastic seat, a spring can be sleeved on the elastic seat, the elastic seat can be flexibly pushed to move left and right through the elasticity of the spring, the elastic seat can be conveniently jacked up when the opening and closing mechanism is twisted, the jacking block can be fixedly arranged through the limiting groove on the elastic seat, and the service life of other parts on the testing mechanism can be prolonged through the replacement of the jacking block due to the fact that the jacking block is in long-time contact with the opening and closing mechanism;

the elastic force range of the spring is 3-8N, so that the spring in the range pushes the spring seat and the test conductor, the contact pressure of the nickel sheet led out by lamination of the test conductor is fixed, deformation caused by uneven stress or poor contact caused by too small stress can be avoided, when the internal resistance of the battery is about 300mΩ according to a contact resistance formula Rj=K/(0.101F)/(m), the influence of the contact resistance is kept to be less than 1%, the pressure of the contact resistance is necessarily greater than 2N, brass-brass contact is taken as an example, the test resistance value is more accurate, and meanwhile, the inconvenient situation of rotating the opening and closing mechanism due to too high elastic force can be avoided, wherein the test value fluctuation of the stylus is about 10%, the stable fluctuation of the test value of the fixture is less than 1%, the measurement value of the fixture is smaller than the measurement value of the stylus, and the average value of the two is more accurate, and the average value of the two values is about 8.15%.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic diagram of a test mechanism according to the present utility model;

FIG. 4 is a schematic side view of a test mechanism according to the present utility model;

FIG. 5 is a schematic view of the opening and closing mechanism of the present utility model;

FIG. 6 is a graph of the comparison of test values for the stylus test and the fixture test of the present utility model.

The reference numerals in the figures illustrate:

1. a base; 2. a testing mechanism; 201. a spring seat; 202. testing the conductor; 203. an OT terminal; 204. a slide bar; 205. a spring; 206. a sliding sleeve; 207. a limit groove; 208. a top block; 209. a stepped hole; 210. a set screw; 3. an opening and closing mechanism; 301. a torsion bar; 302. a collar; 303. an annular groove; 304. clamping springs; 4. a middle gear; 5. a cross bar.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Examples:

referring to fig. 1-2, a high-stability battery detection fixture comprises a base 1 and further comprises two testing mechanisms 2, wherein the two testing mechanisms 2 are arranged on two sides of an inner cavity of the base 1, and the two testing mechanisms 2 are used for clamping two leading-out nickel sheets of a button battery. The opening and closing mechanism 3, the opening and closing mechanism 3 is arranged in the middle of the inner cavity of the base 1, two ends of the opening and closing mechanism 3 penetrate through two side walls of the base 1, and the opening and closing mechanism 3 is used for driving the two testing mechanisms 2 to open and close. The middle gear 4 is inserted in the middle of the top surface of the base 1, the middle gear 4 is positioned between the two testing mechanisms 2, the middle gear 4 and the testing mechanisms are arranged in parallel, and the middle gear 4 is used for placing button cells. And the two cross bars 5 are arranged, the two cross bars 5 are respectively arranged at the two sides of the middle rail 4, and the two ends of the cross bars 5 are respectively connected with the top surface of the base 1.

When the battery to be tested is required to be tested, firstly, an operator twists the opening and closing mechanism 3, so that the opening and closing mechanism 3 props against the two test mechanisms 2, then the two test mechanisms 2 can be opened, then the battery to be tested is placed at the middle position of the middle gear 4, then the opening and closing mechanism 3 is loosened, so that the two test mechanisms 2 can be closed, then the battery can be clamped, then testing is started, when the testing is completed, the opening and closing mechanism 3 is twisted again, the battery is conveniently taken out by the operator, the two leading-out nickel sheets of the battery to be tested can be prevented from contacting the same test mechanism 2 through the two transverse strips 5 positioned at the two sides of the middle gear 4, and then the short circuit of the battery to be tested can be prevented.

Referring to fig. 2, 3 and 4, the test mechanism 2 includes a spring seat 201 disposed on a side wall of the base 1, a test conductor 202 is disposed on a top of an outer wall of the spring seat 201, an OT terminal 203 is disposed at a bottom end of the test conductor 202, a slide bar 204 is disposed on a surface of another side of the spring seat 201, one end of the slide bar 204 is movably inserted into and connected with a side wall of an inner cavity of the base 1, and a spring 205 is sleeved on the slide bar 204, and the spring 205 is used for providing elastic force to the spring seat 201. Limiting grooves 207 are formed in the bottoms of the side walls of the spring seat 201 and located on the test conductors 202, and a top block 208 is arranged in the inner cavity of each limiting groove 207.

Through the bullet seat 201 in the test mechanism 2, the test conductor 202 can be installed and fixed on the side wall of the base 1, and through the test conductor 202, the test conductor 202 can be connected with external detection equipment, so that the detection equipment can conveniently detect batteries, through the slide bar 204, the bullet seat 201 can be movably inserted on the side wall of the inner cavity of the base 1, one end of the bullet seat 201 can be fixed on the side wall of the bullet seat 201, and the bullet seat 201 can be flexibly pushed to move left and right through the elasticity of the spring 205, so that the bullet seat 201 can be conveniently jacked up when the opening and closing mechanism 3 is twisted, the jacking block 208 can be installed and fixed through the limit groove 207 on the bullet seat 201, and because the jacking block 208 is contacted with the opening and closing mechanism 3 for a long time, therefore, through the replacement of the top block 208, the service life of other components on the testing mechanism 2 can be improved, wherein the elastic force range of the spring 205 is 3-8N, so the manner that the spring 205 in the range pushes the spring seat 201 and the testing conductor 202 is to ensure that the contact pressure of the testing conductor 202 for pressing and leading out the nickel sheet is fixed, deformation caused by uneven stress or phenomenon of poor contact caused by too little stress can be avoided, when the internal resistance of the battery is about 300mΩ according to the contact resistance formula rj=k/(0.101F)/(m), the influence of the contact resistance is kept to be less than 1%, the pressure of the contact resistance must be greater than 2N, and the brass-brass contact is taken as an example, so that the testing resistance value is more accurate, and meanwhile, the inconvenient condition of the rotating opening and closing mechanism 3 due to too high elastic force can be avoided.

Referring to fig. 2 and 4, a sliding sleeve 206 is sleeved on the outer side of the spring 205, the sliding sleeve 206 is used for being inserted into the side wall of the inner cavity of the base 1, and the spring 205 can be guided in a limited manner through the sliding sleeve 206, so that the stability of the spring 205 for providing elasticity to the spring seat 201 can be improved.

Referring to fig. 4, three sliding bars 204 are provided, and the three sliding bars 204 are distributed in a triangular shape, so that the spring seat 201 is in a horizontal state, and further, the contact surface between the test conductor 202 and the lead-out nickel sheet is flat.

Referring to fig. 3, the front view shape of the limiting groove 207 is the same as the front view shape of the top block 208, and the limiting groove 207 and the top block 208 are connected in an inserting manner, so that the limiting groove 207 can be conveniently installed on the top block 208.

Referring to fig. 3, a stepped hole 209 is formed in the surface of the top block 208, a positioning screw 210 is inserted into the inner cavity of the stepped hole 209, one end of the positioning screw 210 is connected with the side wall of the spring seat 201 in a rotating manner, the head of the positioning screw 210 is located in the inner cavity of the stepped hole 209, and through the stepped hole 209, the top block 208 can be conveniently fixed on the spring seat 201 by the positioning screw 210, the head of the positioning screw 210 can be stored, and the head of the positioning screw 210 can be prevented from affecting the rotation of the opening and closing mechanism 3.

Referring to fig. 1 and 5, the opening and closing mechanism 3 includes a torsion bar 301, collars 302 are sleeved on the torsion bar 301 and close to two ends, the two collars 302 are respectively embedded in the middle parts of two side walls of the base 1, annular grooves 303 are formed in the outer sides of the collars 302 on the torsion bar 301, clamp springs 304 are arranged in inner cavities of the annular grooves 303, the clamp springs 304 are located in the outer sides of the base 1, the two collars 302 in the opening and closing mechanism 3 can be installed on the base 1 and provide an installation foundation for the torsion bar 301, and can facilitate flexible rotation of the torsion bar 301, then through the torsion bar 301 which rotates, the test mechanisms 2 on two sides can be flexibly jacked up are opened and closed, and the torsion bar 301 can be clamped and limited through the annular grooves 303 and the clamp springs 304, so that the torsion bar 301 can rotate stably.

Referring to fig. 1 and 2, the middle rail 4 and the cross bar 5 are made of insulating materials, such as insulating wood or insulating rubber, so that the electric conduction of the two lead-out nickel plates of the battery to be tested can be prevented from contacting the same electrode.

When in use: when the battery to be tested is required to be tested, firstly, an operator twists the opening and closing mechanism 3, so that the opening and closing mechanism 3 props against the two test mechanisms 2, then the two test mechanisms 2 can be opened, then the battery to be tested is placed at the middle position of the middle gear 4, then the opening and closing mechanism 3 is loosened, so that the two test mechanisms 2 can be closed, then the battery can be clamped, then testing is started, when the testing is completed, the opening and closing mechanism 3 is twisted again, the battery is conveniently taken out by the operator, the two leading-out nickel sheets of the battery to be tested can be prevented from contacting the same test mechanism 2 through the two transverse strips 5 positioned at the two sides of the middle gear 4, and then the short circuit of the battery to be tested can be prevented.

The spring seat 201 in the test mechanism 2 can be arranged on the side wall of the base 1 and can also be used for installing and fixing the test conductor 202, and the test conductor 202 can be connected with external detection equipment through the test conductor 202, so that the detection equipment can conveniently detect batteries, the slide bar 204 can be movably inserted on the side wall of the inner cavity of the base 1 and can fix one end of the slide bar on the side wall of the spring seat 201, the spring 205 can be sleeved, the spring seat 201 can be flexibly pushed to move left and right through the elasticity of the spring 205, the spring seat 201 can be conveniently jacked up when the opening and closing mechanism 3 is twisted, the ejector block 208 can be installed and fixed through the limit groove 207 on the spring seat 201, and the service life of other parts on the test mechanism 2 can be prolonged through the replacement of the ejector block 208 due to long-time contact between the ejector block 208, the spring 205 in the spring range of 3-8N pushes the spring seat 201 and the test conductor 202, so that the contact pressure of the test conductor 202 for pressing the lead-out nickel sheet is fixed, deformation caused by uneven stress or poor contact caused by too small stress can be avoided, when the internal resistance of the battery is about 300mΩ according to the contact resistance formula Rj=K/(0.101F)/(m), the influence of the contact resistance is kept smaller than 1%, the pressure of the contact resistance is required to be larger than 2N, brass-brass contact is taken as an example, the test resistance value is more accurate, meanwhile, the condition that the opening and closing mechanism 3 is inconvenient to rotate due to too high elasticity can be avoided, wherein referring to FIG. 6, the fluctuation of the test value of the stylus is about 10%, the stable fluctuation of the test value of the jig is smaller than 1%, the measurement value of the jig is smaller than the measurement value of the stylus, more precisely the two means differ by about 8.15%.

Through sliding sleeve 206, can be to the spacing guide of spring 205 to can improve the stationarity that spring 205 provided elasticity to bullet seat 201, because slide bar 204 is provided with three, and three slide bar 204 is the triangle and distributes, can make bullet seat 201 be in the horizontality, and then can make test conductor 202 and draw out nickel piece contact surface level and smooth, through shoulder hole 209, can make things convenient for set screw 210 to fix kicking block 208 on bullet seat 201, can accomodate set screw 210 head again, and then can prevent that set screw 210 head from influencing opening and shutting mechanism 3 and rotating.

Through two lantern rings 302 in the opening and closing mechanism 3, can install on base 1 again, can provide the installation basis to torsion bar 301 to can make things convenient for the nimble rotation of torsion bar 301 again, then through pivoted torsion bar 301, the testing mechanism 2 that can nimble jack-up both sides opens and shuts, through ring channel 303 and jump ring 304, can block spacing to torsion bar 301, and then can make the steady rotation of torsion bar 301.

The table pen test and jig test numerical comparison table diagram of the utility model is as follows:

the above is only a preferred embodiment of the present utility model. The scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims (10)

1. The utility model provides a battery detection tool of high stability, includes base (1), its characterized in that: the device further comprises two testing mechanisms (2), wherein the two testing mechanisms (2) are respectively arranged on two sides of the inner cavity of the base (1), and the two testing mechanisms (2) are used for clamping two leading-out nickel sheets of the button cell;

the opening and closing mechanism (3) is arranged in the middle of the inner cavity of the base (1), two ends of the opening and closing mechanism (3) penetrate through two side walls of the base (1), and the opening and closing mechanism (3) is used for driving the two testing mechanisms (2) to move in an opening and closing mode;

the middle rail (4) is inserted into the middle part of the top surface of the base (1), the middle rail (4) is positioned between the two test mechanisms (2) and is arranged in parallel, and the middle rail (4) is used for placing button cells; and

the horizontal bars (5), horizontal bar (5) are provided with two, two horizontal bar (5) set up respectively in well shelves (4) both sides position, and horizontal bar (5) both ends respectively with base (1) top surface links to each other.

2. The high-stability battery detection jig of claim 1, wherein: the testing mechanism (2) comprises a spring seat (201) arranged on the side wall of the base (1), a testing conductor (202) is arranged at the top of the outer wall of the spring seat (201), an OT terminal (203) is arranged at the bottom end of the testing conductor (202), a sliding rod (204) is arranged on the surface of the other side of the spring seat (201), one end of the sliding rod (204) is movably connected with the side wall of the inner cavity of the base (1) in an inserting mode, a spring (205) is sleeved on the sliding rod (204), and the spring (205) is used for providing elasticity for the spring seat (201);

limiting grooves (207) are formed in the bottoms of the side walls of the elastic seats (201) and located on the test conductors (202), and top blocks (208) are arranged in the inner cavities of each limiting groove (207).

3. The high-stability battery detection jig according to claim 2, wherein: the sliding sleeve (206) is sleeved on the outer side of the spring (205), the sliding sleeve (206) is used for being inserted into the side wall of the inner cavity of the base (1), and the sliding sleeve (206) is used for limiting and guiding the spring (205).

4. The high-stability battery detection jig according to claim 2, wherein: the three sliding rods (204) are arranged, and the three sliding rods (204) are distributed in a triangular mode.

5. The high-stability battery detection jig according to claim 2, wherein: the front view shape of the limiting groove (207) is the same as the front view shape of the top block (208), and the limiting groove and the top block are connected in an inserting mode.

6. The high-stability battery detection jig according to claim 2, wherein: the surface of the top block (208) is provided with a stepped hole (209), a positioning screw (210) is inserted into the inner cavity of the stepped hole (209), and one end of the positioning screw (210) is rotationally connected with the side wall of the spring seat (201).

7. The high-stability battery detection jig of claim 6, wherein: the head of the positioning screw (210) is positioned in the inner cavity of the stepped hole (209).

8. The high-stability battery detection jig of claim 1, wherein: the opening and closing mechanism (3) comprises a torsion bar (301), lantern rings (302) are sleeved on the torsion bar (301) and close to two ends, and the two lantern rings (302) are respectively inlaid in the middle parts of two side walls of the base (1).

9. The high-stability battery detection jig of claim 8, wherein: annular grooves (303) are formed in the torsion bar (301) and located on the outer side of each collar (302), snap springs (304) are arranged in the inner cavities of the annular grooves (303), and the snap springs (304) are located on the outer side of the base (1).

10. The high-stability battery detection jig of claim 1, wherein: the middle rail (4) and the transverse bar (5) are made of insulating materials.