CN217901831U

CN217901831U - Button cell test fixture

Info

Publication number: CN217901831U
Application number: CN202221576274.1U
Authority: CN
Inventors: 郝凤龙
Original assignee: Wuhan Land Electronic Co ltd
Current assignee: Wuhan Land Electronic Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-11-25
Anticipated expiration: 2032-06-22

Abstract

The utility model discloses a button cell test fixture, including the bed plate, the top of bed plate is provided with the stull, be provided with quick the clamp on the stull, be fixed with the clamp plate on the chuck that presss from both sides fast, be fixed with anodal thimble on the clamp plate, be provided with the depression bar on the bottom surface of clamp plate, the bottom of clamp plate is provided with the battery mount pad, the battery mount pad open on the surface has the step hole that link up, the step hole includes that the battery places the hole and is located the battery and places the thimble of hole bottom and pass the hole, battery mount pad elastic support is at the top of bed plate, be provided with the negative pole thimble on the bed plate, negative pole thimble and the vertical alignment of anodal thimble, and all pass the axis collineation of hole with the thimble. The button battery is accurately positioned through the battery placing hole, and the positive pole ejector pin and the negative pole ejector pin which are arranged in a collinear mode with the axis of the battery placing hole are respectively in contact conduction with the button battery from top to bottom, so that the testing of the special button battery with the positive pole or the negative pole small is accurately and quickly realized.

Description

Button cell test fixture

Technical Field

The utility model relates to a button detects technical field, concretely relates to button cell test fixture.

Background

Button cells, also known as button cells, are generally larger in diameter and thinner in thickness, relative to cylindrical cells, and have an outer dimension similar to a small button. Usually, the top surface of the button cell is a positive electrode, the side wall and the bottom surface of the button cell are a negative electrode, most of the corresponding currently used button cell clamps are designed according to the structure, the test ends in contact with the positive electrode and the negative electrode are rough, and the button cell clamps cannot be suitable for button cells with positive electrodes or negative electrodes which need accurate positioning.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a button cell test fixture, can be applicable to anodal or the little special button cell test of negative pole, the commonality is strong, and the test is accurate, quick.

In order to solve the technical problem, the utility model provides a button cell test fixture, including the bed plate, the interval is provided with two support arms on the bed plate, the support arm is the L type of invering, two be provided with the stull between the horizontal segment end of support arm, the stull is the vertical platelike of arranging, be provided with the quick clamp on the stull, be fixed with the clamp plate on the chuck of quick clamp, the clamp plate level is arranged, the chuck that presss from both sides fast promotes the clamp plate is at vertical direction reciprocating motion, be fixed with anodal thimble on the clamp plate, be provided with the depression bar on the bottom surface of clamp plate, the depression bar is vertical shaft-like, the bottom of clamp plate is provided with the battery mount pad, the step hole that has a perfect understanding is opened on the surface of battery mount pad, the step hole includes that the battery placed the hole and is located the thimble that the hole bottom was placed to the battery passes the hole, the thimble passes the aperture that the hole is less than the battery is placed the hole, battery mount pad elastic support is in the top of bed plate, be provided with the negative pole thimble, the negative pole thimble with the vertical alignment of positive thimble, and all with the axis collineatly of passing the hole.

In above-mentioned button cell test fixture, place the hole through the battery and pinpoint the button cell, then through positive pole thimble and negative pole thimble with the axis collinear arrangement of battery placement hole, from button cell's top and bottom respectively with button cell contact switch on, because the most advanced structure of thimble to the realization is to those anodal or the little special button cell tests of negative pole. In addition, the battery mounting seat is elastically supported on the base plate in a floating mode, when the positive ejector pin moves downwards along with the pressing plate to contact the button battery, the pressing rod presses the battery mounting seat in a contact mode, the positive ejector pin, the negative ejector pin and the button battery are elastically kept at the set positions in the vertical direction, the end portions of the positive ejector pin and the negative ejector pin are kept to have proper contact force with the button battery, damage to the positive ejector pin is avoided, a good conduction state is achieved, and testing is more accurate.

As an improvement of the button cell test fixture of the utility model, the battery mounting seat and be provided with supporting spring between the bed plate. Preferably, the support springs are fixed on the base plate, and the number of the support springs is four, and the support springs are uniformly distributed at the bottom of the battery mounting seat.

The battery mounting seat is elastically supported by the four supporting springs, so that the position elastic floating of the battery mounting seat and the position elastic floating of the button battery are realized, and the contact detection by the ejector pins is facilitated.

Furthermore, be provided with first guide bar on the bottom surface of battery mount pad, but first guide bar plug-in sliding insertion the bed plate, first guide bar is total four, and the equipartition is in the bottom of battery mount pad.

The floating guide of the battery mounting seat is realized through the first guide rod, the battery mounting seat is limited to move downwards in the vertical direction after being stressed, the initial position is restored upwards in the vertical direction after the stress is finished, the centers of the upper surface and the lower surface of a button battery in a battery placing hole are ensured, and the alignment of an anode thimble and a cathode thimble is strictly maintained all the time.

As the utility model discloses another kind of improvement of button cell test fixture, the battery mount pad is square cubic, be provided with threely on the battery mount pad the step hole, every the step hole for the position on one side of battery mount pad is the same, through rotating the battery mount pad makes every the axis homoenergetic in step hole with anodal thimble or negative pole thimble collineation.

The battery mounting seat is designed into a square block shape, the step holes are respectively formed in the symmetrical positions of the four sides, and the battery mounting seat can be taken down and put on the battery mounting seat, so that the axis of each step hole can be collinear with the positive thimble or the negative thimble by rotating the battery mounting seat when the battery mounting seat is used, and therefore the same battery mounting seat can be suitable for a plurality of button batteries, and the universality of a test fixture is further improved.

Furthermore, four pressure rods are arranged on the bottom surface of the pressure plate, and the pressure rods vertically align to the four corners of the battery mounting seat.

As the utility model discloses another improvement of button cell test fixture, the interval is provided with two second guide posts on the bed plate, the second guide post sets up one side of battery mount pad to slide and run through the clamp plate. The reciprocating of clamp plate is led through the second guide post, and the restriction improves the accuracy of test in vertical direction.

As a further improvement of the button cell test fixture, the stull with it is fixed through bolt and nut between the quick clamp, be provided with the bolt installation via hole of rectangular shape on the stull, bolt installation via hole is arranged along vertical direction, is used for providing the stull with the channel that fixing bolt between the quick clamp removed makes the fixed position of quick clamp is adjustable.

The fixing mode through bolt and nut connection fixes stull and quick clamp to bolt installation pore pair fixing bolt through rectangular shape removes, realizes the regulation of quick clamping fixed position, thereby makes the height-adjustable of clamp plate, carries out adaptability according to concrete button cell thickness and adjusts, and the commonality is strong, and the controllability is good moreover.

As the utility model discloses button cell test fixture's still another improvement, the interval is provided with two on the stull quick clamp. Can set up two test module on same bed plate, can the parallel measurement, improve efficiency of software testing.

In conclusion, the button cell test fixture can test batteries with various specifications, is particularly suitable for testing special button cells with small anodes or cathodes, and has strong universality; during testing, the positive thimble and the negative thimble keep good contact state with the button cell, so that the testing is accurate and rapid; the whole structure is simple, and the cost is low.

Drawings

In the drawings:

fig. 1 is the whole structure diagram of the button cell test fixture of the utility model.

Fig. 2 is the utility model discloses button cell test fixture's battery mount pad structure chart.

Fig. 3 is the utility model discloses button cell test fixture's battery mount pad top view.

Figure 4 is the utility model discloses button cell test fixture's clamp plate structure chart.

In the figure, 1, a base plate; 2. a support arm; 3. a cross brace; 4. quickly clamping; 5. pressing a plate; 6. a positive thimble; 7. a battery mounting seat; 8. a stepped bore; 81. a battery placement hole; 82. the thimble passes through the hole; 9. a negative pole thimble; 10. a support spring; 11. a first guide bar; 12. a second guide post; 13. mounting a through hole on the bolt; 14. a clamp mounting plate; 15. a pressure lever.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.

Example 1

Fig. 1-3 show the utility model relates to a button cell test fixture. As shown in fig. 1 and 3, the button cell test fixture comprises a base plate 1, two support arms 2 are arranged on the base plate 1 at intervals, the support arms 2 are inverted L-shaped, a cross brace 3 is arranged between the horizontal ends of the two support arms 2, the cross brace 3 is vertically arranged plate-shaped, a quick clamp 4 is arranged on the cross brace 3, a clamp plate 5 is fixed on a chuck of the quick clamp 4, the clamp plate 5 is horizontally arranged, the chuck of the quick clamp 4 pushes the clamp plate 5 to reciprocate in the vertical direction, an anode thimble 6 is fixed on the clamp plate 5, a pressure rod 15 is arranged on the bottom surface of the clamp plate 5, the pressure rod 15 is vertical rod-shaped, the bottom of the clamp plate 5 is provided with a cell mounting seat 7, a through step hole 8 is formed in the surface of the cell mounting seat 7, the step hole 8 comprises a cell placing hole 81 and a thimble through hole 82 located at the bottom of the cell placing hole 81, the thimble through hole 82 is smaller than the cell placing hole 81, the thimble through hole 82, the battery mounting seat 7 is elastically supported at the top of the base plate 1, a cathode thimble 9 is arranged on the base plate 1, the cathode thimble 9 and the thimble 6 are vertically aligned, and the collinear axes of the thimble through hole 82.

Optionally, support springs 10 are arranged between the battery installation seat 7 and the base plate 1, and the number of the support springs 10 is four, and the support springs are fixed on the base plate 1 and uniformly distributed at the bottom of the battery installation seat 7. The four supporting springs 10 elastically support the battery mounting seat 7, so that the positions of the battery mounting seat 7 and the button battery are elastically floated, and contact detection by using a thimble is facilitated.

As shown in fig. 2, the bottom surface of the battery mounting seat 7 is provided with four first guide rods 11, the first guide rods 11 are inserted into the base plate 1 in a pluggable and slidable manner, and the first guide rods 11 are uniformly distributed at the bottom of the battery mounting seat 7. The ball linear bearings are arranged at corresponding positions on the base plate 1, so that the first guide rod 11 can be plugged and pulled out and vertically slides.

The first guide rod 11 vertically slides in the battery mounting seat 7, limits the battery mounting seat 7 to move downwards in the vertical direction after being stressed, and upwards restores to the initial position in the vertical direction after the stress is finished, so that the centers of the upper surface and the lower surface of the button battery in the battery placing hole 81 are ensured, and the alignment of the positive thimble 6 and the negative thimble 9 is always strictly maintained.

As shown in fig. 3, the battery mounting base 7 is square, three stepped holes 8 are provided in the battery mounting base 7, the position of each stepped hole 8 with respect to one side of the battery mounting base 7 is the same, and the axis of each stepped hole 8 can be collinear with the positive electrode thimble 6 or the negative electrode thimble 9 by rotating the battery mounting base 7. Because first guide bar 11 can be inserted and pulled, make battery mount pad 7 take off and put on again, take off the back like this, through the position of rotating battery mount pad 7, can make the axis homoenergetic of every step hole 8 and anodal thimble 6 or negative pole thimble 9 collineation to make same battery mount pad 7 can be applicable to a plurality of button cell, further improve test fixture's commonality.

As shown in fig. 1 and 4, four pressing rods 15 are provided on the bottom surface of the pressing plate 5, and the pressing rods 15 are vertically aligned with the four corner portions of the battery mounting seat 7. When the pressing plate 5 moves downwards along with the quick clamp 4, the bottom ends of the four pressing rods 15 contact and press the upper surface of the battery mounting seat 7 from four corners, so that the stress of the battery mounting seat 7 is balanced, and the battery mounting seat keeps horizontal posture and moves downhill.

Optionally, two second guiding pillars 12 are disposed on the base plate 1 at intervals, and the second guiding pillars 12 are disposed on one side of the battery mounting seat 7 and slidably penetrate through the pressing plate 5. The second guide column 12 is fixed on the sub-base plate 1 to guide the up-and-down movement of the pressure plate 5, so that the vertical direction is limited, and the test accuracy is improved.

As shown in fig. 1, the cross brace 3 and the quick clamp 4 are fixed through bolts and nuts, the cross brace 3 is provided with a long-strip-shaped bolt installation through hole 13, the bolt installation through hole 13 is arranged in the vertical direction and is used for providing a channel for moving a fixing bolt between the cross brace 3 and the quick clamp 4, so that the fixing position of the quick clamp 4 is adjustable, and the downward movement stroke of the pressing plate 5 is adjusted to adapt to button cells with different thicknesses.

Optionally, two quick clamps 4 are arranged on the cross brace 3 at intervals. Can set up two test module on same bed plate 1, can the parallel measurement, improve efficiency of software testing.

Optionally, a clamp mounting plate (14) is arranged at the bottom of the base plate (1), the clamp mounting plate (14) is of a structure shaped like a Chinese character 'ji', and bolt fixing holes are formed in the bottom surfaces of two sides of the clamp and used for supporting and fixing the whole button cell clamp on a workbench.

When the button battery positioning device is used, a proper step hole 8 is milled at a corresponding position on the battery mounting seat 7 according to the diameter and the thickness of a button battery to be measured, and a large hole is a counter bore and is a position for limiting the battery by the battery placing hole 81; the small hole is a through hole, and is a thimble through hole 82 for passing through the electrode thimble; then the battery mounting seat 7 is inserted into a ball linear bearing hole arranged on the base plate 1 through a first guide rod 11, the negative electrode thimble 9 on the side can be ensured to accurately contact with a battery electrode, and meanwhile, four supporting springs 10 are also arranged on the base plate 1 to support the battery mounting seat 7, so that the battery mounting seat 7 can realize downward movement and bounce reset, namely elastic floating; then, the pressing plate 5 is pressed down through the quick clamp 4, the pressing plate 5 and the positive ejector pin 6 of the other pole are fixed on the quick clamp 4, the pressing plate 5 is pushed to move downwards through the movable quick clamp 4, the end of the positive ejector pin 6 is firstly in elastic contact with the button cell, then the pressing rod 15 pushes the cell mounting seat 7 to compress the supporting spring 10 to move downwards, the button cell is in elastic contact with the negative ejector pin 9, finally the quick clamp 4 reaches a locking position, and the ejector pins on two sides are accurately contacted with two stages of the cell, so that detection can be started. If the type of the button battery needs to be changed, the battery installation seat 7 is only required to be taken out, the step hole 8 of the battery specification to be tested is selected, the position of the battery installation seat 7 is rotated, and the battery can be changed by placing the battery installation seat at the corresponding position. The beneficial effects of the utility model are that, can be fast, accurate, convenient multiple specification battery of test. Low cost and simple structure.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope thereof, and although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that: after reading the present disclosure, those skilled in the art can make various changes, modifications and equivalents to the embodiments of the present disclosure, which are within the scope of the appended claims.

Claims

1. The button cell test fixture is characterized by comprising a base plate (1), wherein two support arms (2) are arranged on the base plate (1) at intervals, the support arms (2) are inverted L-shaped, two cross braces (3) are arranged between the horizontal ends of the support arms (2), each cross brace (3) is vertically arranged plate-shaped, a quick clamp (4) is arranged on each cross brace (3), a press plate (5) is fixed on a chuck of each quick clamp (4), the press plate (5) is horizontally arranged, the chuck of each quick clamp (4) pushes the press plate (5) to reciprocate in the vertical direction, an anode thimble (6) is fixed on each press plate (5), a press rod (15) is arranged on the bottom surface of each press plate (5), each press rod (15) is in the shape of a vertical rod, a cell mounting seat (7) is arranged at the bottom of each press plate (5), a through step hole (8) is formed in the surface of each cell mounting seat (7), each step hole (8) comprises a cell placing hole (81) and a hole (82) which is located in each cell placing hole, the bottom of each press plate (81), the hole, the diameter of each battery mounting seat (7) is smaller than that the diameter of each thimble (9) of each thimble, and the hole (1) is smaller than that the diameter of each thimble (9) of each thimble, the negative electrode thimble (9) and the positive electrode thimble (6) are vertically aligned and are collinear with the axis of the thimble passing through the hole (82).

2. Button cell test fixture according to claim 1, characterized in that a support spring (10) is arranged between the cell mounting seat (7) and the base plate (1).

3. A button cell test fixture according to claim 2, characterized in that said support springs (10) are fixed to said base plate (1) and are four in number, evenly distributed at the bottom of said cell mounting seat (7).

4. The button cell test fixture according to claim 2, wherein a first guide rod (11) is disposed on a bottom surface of the cell mounting seat (7), the first guide rod (11) is slidably inserted into the base plate (1) in a pluggable manner, and the number of the first guide rods (11) is four, and the first guide rods are uniformly distributed at the bottom of the cell mounting seat (7).

5. The button cell test fixture according to claim 1, wherein the cell mounting seat (7) is square, three step holes (8) are formed in the cell mounting seat (7), each step hole (8) has the same position relative to one side of the cell mounting seat (7), and the axis of each step hole (8) can be collinear with the positive thimble (6) or the negative thimble (9) by rotating the cell mounting seat (7).

6. A button cell test fixture according to claim 5, characterized in that four compression bars (15) are arranged on the bottom surface of the pressure plate (5), and the compression bars (15) are vertically aligned with four corners of the cell mounting seat (7).

7. Button cell test fixture according to claim 1, wherein two second guiding pillars (12) are provided at intervals on the base plate (1), and the second guiding pillars (12) are provided at one side of the cell mounting seat (7) and slidably penetrate through the pressure plate (5).

8. The button cell test fixture according to claim 1, wherein the cross-brace (3) and the quick clamp (4) are fixed by bolts and nuts, the cross-brace (3) is provided with elongated bolt mounting through holes (13), and the bolt mounting through holes (13) are arranged in a vertical direction and used for providing a channel for fixing bolt movement between the cross-brace (3) and the quick clamp (4), so that the fixing position of the quick clamp (4) is adjustable.

9. Button cell test fixture according to claim 1, characterized in that two said snap clips (4) are provided on said cross-brace (3) at intervals.

10. The button cell test fixture as claimed in claim 1, wherein the bottom of the base plate (1) is provided with a fixture mounting plate (14), the fixture mounting plate (14) is of a zigzag structure, and bolt fixing holes are formed in the bottom surfaces of two sides of the fixture mounting plate.