CN216248052U - Special clamp for testing button cell - Google Patents

Abstract

The utility model discloses a special fixture for testing a button battery, which comprises a back plate, an upper probe fixed on a driving sliding block and a lower probe fixed on a supporting plate, wherein the upper probe and the lower probe are coaxially arranged, a battery tray is arranged between the upper probe and the lower probe, the driving sliding block is connected with a rapid pressing assembly, the driving sliding block is arranged in a groove of the back plate, and the supporting plate is fixed on the back plate through a positioning pin. The initiative slider is connected with the quick pressing assembly and includes that the elbow presss from both sides, and the elbow presss from both sides the lower extreme and is connected with the initiative slider, is equipped with driven slider between initiative slider and the layer board, and driven slider's upper end is equipped with the sliding shaft, and the sliding shaft penetrates in the hole that the initiative slider corresponds, and is equipped with little spring between driven slider and the initiative slider, is equipped with big spring between driven slider and the layer board. The test device can meet the requirement of testing a single small battery of the button battery, and has the advantages of compact structure, simplicity and convenience in installation, simplicity in operation, stable performance and good fatigue resistance.

Description

Special clamp for testing button cell

Technical Field

The utility model relates to a battery test device, in particular to a special clamp for testing a button battery. The method is mainly applied to testing of single small battery of the button battery.

Background

The button cell is one kind of lithium cell, and the appearance is like the button. Compared with a common lead-acid battery, the lithium battery is lighter, higher in durability and stability and longer in electric power. The button cell has the characteristics of small volume, light weight and high stability. The device is widely applied to watches, hearing aids, calculators, electronic toys, small motors and various precision instruments.

Before the button cell leaves a factory, a series of tests are needed to test the performances of the button cell such as electric capacity, internal resistance and the like, and a cyclic aging test is also needed to ensure the factory quality of the product. In order to ensure the reliability of the test result, a special fixture for the button cell needs to be designed to perform a series of cell tests so as to ensure the reliable quality of the outgoing button cell.

The testing device in the prior art is inconvenient to operate, complex in structure and poor in stability.

In view of the above, the present invention is particularly proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide the special clamp for testing the button cell, which is simple to operate, convenient to install, attractive and elegant in appearance, stable and reliable in structure.

The special fixture for testing the button battery comprises a back plate, an upper probe fixed on a driving sliding block and a lower probe fixed on the supporting plate, wherein the upper probe and the lower probe are coaxially arranged, a battery tray is arranged between the upper probe and the lower probe, the driving sliding block is connected with a quick pressing assembly, the driving sliding block is arranged in a groove of the back plate, and the supporting plate is fixed on the back plate through a positioning pin.

According to the design scheme provided by the utility model, the test fixture has the advantages of simple and reliable structure, attractive and elegant appearance, convenience in installation and maintenance, simplicity and convenience in operation and benefit for testing.

Drawings

Fig. 1 is a schematic axial view of a special fixture for testing a button cell according to an embodiment of the present invention;

FIG. 2 is a front view of a test fixture according to an embodiment of the present invention;

FIG. 3 is a left side view of a test fixture in accordance with an embodiment of the present invention;

FIG. 4 is a drawing of the outer dimensions of a test fixture according to an embodiment of the present invention;

FIG. 5 is an external view of an upper portion of a test fixture in accordance with an embodiment of the present invention;

FIG. 6 is a schematic diagram illustrating a disassembled state of a test fixture according to an embodiment of the present invention;

in the figure:

01. the device comprises an elbow clamp, 02, a back plate, 03, an aluminum column, 04, an upper probe, 05, a driving sliding block, 06, a small spring, 07, a sliding shaft, 08, a driven sliding block, 09, a battery tray, 10, a large spring, 11, a lower probe, 12, a supporting plate, 13 and a shielding plate.

Detailed Description

The technical scheme in the embodiment of the utility model is clearly and completely described below by combining the attached drawings in the embodiment of the utility model; it is to be understood that the described embodiments are merely exemplary of the utility model, and are not intended to limit the utility model to the particular forms disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

The terms that may be used herein are first described as follows:

the term "and/or" means that either or both can be achieved, for example, X and/or Y means that both cases include "X" or "Y" as well as three cases including "X and Y".

The terms "comprising," "including," "containing," "having," or other similar terms of meaning should be construed as non-exclusive inclusions. For example: including a feature (e.g., material, component, ingredient, carrier, formulation, material, dimension, part, component, mechanism, device, process, procedure, method, reaction condition, processing condition, parameter, algorithm, signal, data, product, or article of manufacture), is to be construed as including not only the particular feature explicitly listed but also other features not explicitly listed as such which are known in the art.

The term "consisting of … …" is meant to exclude any technical feature elements not explicitly listed. If used in a claim, the term shall render the claim closed except for the inclusion of the technical features that are expressly listed except for the conventional impurities associated therewith. If the term occurs in only one clause of the claims, it is defined only to the elements explicitly recited in that clause, and elements recited in other clauses are not excluded from the overall claims.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured," etc., are to be construed broadly, as for example: can be fixedly connected, can also be detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms herein can be understood by those of ordinary skill in the art as appropriate.

The numerical ranges recited herein include both the endpoints thereof and all integers and fractions within the numerical range.

The terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship that is indicated based on the orientation or positional relationship shown in the drawings for ease of description and simplicity of description only, and are not intended to imply or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting herein.

Details which are not described in detail in the embodiments of the utility model belong to the prior art which is known to the person skilled in the art. Those not specifically mentioned in the examples of the present invention were carried out according to the conventional conditions in the art or conditions suggested by the manufacturer. The reagents or instruments used in the examples of the present invention are not specified by manufacturers, and are all conventional products available by commercial purchase.

The special fixture for testing the button battery comprises a back plate, an upper probe fixed on a driving sliding block and a lower probe fixed on the supporting plate, wherein the upper probe and the lower probe are coaxially arranged, a battery tray is arranged between the upper probe and the lower probe, the driving sliding block is connected with a quick pressing assembly, the driving sliding block is arranged in a groove of the back plate, and the supporting plate is fixed on the back plate through a positioning pin.

The initiative slider is connected with the quick compression subassembly and includes the elbow presss from both sides, the elbow press from both sides the lower extreme pass through the aluminium post with the initiative slider is connected, the elbow presss from both sides to be fixed on the backplate.

The driving slide block is arranged on the support plate, the driven slide block is arranged between the driving slide block and the support plate, a slide shaft is arranged at the upper end of the driven slide block, the slide shaft penetrates into a hole corresponding to the driving slide block, a small spring is arranged between the driven slide block and the driving slide block, and a large spring is arranged between the driven slide block and the support plate.

The front part of the supporting plate is provided with a shielding plate.

And a plurality of groups of special clamps for testing the button cell are arranged on the back plate side by side.

The utility model can meet the requirement of testing single small battery of the button battery, and has the advantages of compact structure, simple and convenient installation, simple operation, stable performance and good fatigue resistance.

The action principle is as follows:

the test fixture adopts a mode that one end is fixed and the other end slides, the button cell is clamped between the upper probe and the lower probe by pressing the elbow clamp downwards, the axes of the upper probe and the lower probe are on the same straight line, and a series of tests can be carried out after the upper probe and the lower probe are clamped.

The button cell comprises a slider, an upper part and a lower part, wherein the upper part is a sliding end and consists of a probe, an elbow clamp and a sliding mechanism, and the button cell can be clamped between the upper probe and the lower probe by pressing the elbow clamp to drive the probe on the slider to move downwards. The upper probe is connected with the anode of the button cell, and the lower probe is connected with the cathode of the button cell. In the sliding process of the sliding block, the groove of the back plate is in contact with the boss of the driven sliding block to limit the deviation in the left and right directions in the sliding process, so that the verticality of the sliding block motion track is ensured.

The lower part is a fixed end and is composed of a probe and a probe fixing mechanism, and the probe fixing mechanism is used for being matched with the upper probe to connect the anode and the cathode of the button cell. The supporting plate and the back plate are positioned by the positioning pin, so that the accuracy of the position of the supporting plate is ensured. Thereby ensuring that the upper and lower probes are always kept on the same straight line.

In conclusion, in the embodiment of the utility model, the clamp testing part adopts a unique probe structure, so that the testing function is more concentrated, the required space is smaller, the cost is lower, the operation and the disassembly are simple, and the test is convenient. The production cost is reduced, and the time for installing the clamp is also saved.

In order to more clearly show the technical solutions and the technical effects provided by the present invention, the following detailed description is provided for the embodiments of the present invention with specific embodiments.

Example 1

As shown in fig. 1 to 6, the external dimensions of the test fixture are: 1120mm wide, 150mm high and 54mm deep; the main material of the clamp is a green epoxy plate, and the clamp has good mechanical property and high-temperature resistance.

The upper part (see figure 5) consists of an elbow clip, an aluminum column, a driving slide block, a driven slide block, a sliding shaft, a large spring, a small spring and a battery tray. The elbow presss from both sides to be connected with initiative slider through the aluminium post, and initiative slider rethread sliding shaft is connected with driven slider, places the little spring of two same models in the middle of the axle that two sliders are connected simultaneously, places the big spring of two same models below driven slider. The battery tray is movably connected with the driven sliding block through the positioning pin and can be plugged and pulled out, and the battery tray can be replaced at any time when the model of the button battery is changed.

During the pressing process, the elbow belt drives the driving slide block to move downwards, and at the moment, a small spring between the driving slide block and the driven slide block starts to be stressed and compressed. But the driven slide block is supported by two large springs below the driven slide block, so that the driven slide block is basically kept still. The upper probe is already in contact with the positive pole of the button cell before the two sliders are in contact. Then, after the two sliders are also contacted, the two sliders are simultaneously moved downwards until the lower probe is contacted with the button cell. Note that both the upper and lower probes are in contact with the button cell at this time, and the upper probe is in contact with the lower probe earlier. During the subsequent pressing down, the upper and lower probes gradually grip the button cell. The elbow clip is pressed down to the extreme point, the upper probe and the lower probe are clamped tightly, and finally the state required by the battery test is achieved.

After the test is finished, the driving slide block and the driven slide block at the upper part are simultaneously jacked up by the large spring in the process of lifting the elbow clamp. Then, the lower probe is separated from the button cell first. Subsequently, the two slides start to separate under the action of a small spring between the driving and driven slides. Then, the upper probe is separated from the button cell. When the elbow clip is lifted to the top point, the upper probe and the lower probe are separated from the button cell. And finally, the button battery is easily taken down.

The lower part is a fixed end consisting of a supporting plate, a shielding plate and a lower probe.

In conclusion, the test fixture disclosed by the embodiment of the utility model is simple to operate, easy to operate, stable and reliable in structure and attractive and elegant in appearance. The probe of each channel can be detached and replaced independently, so that the maintenance is convenient.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims (5)

1. The special fixture for testing the button battery is characterized by comprising a back plate, an upper probe fixed on a driving sliding block and a lower probe fixed on the supporting plate, wherein the upper probe and the lower probe are coaxially arranged, a battery tray is arranged between the upper probe and the lower probe, the driving sliding block is connected with a quick pressing assembly, the driving sliding block is arranged in a groove of the back plate, and the supporting plate is fixed on the back plate through a positioning pin.

2. The special fixture for testing button cells as claimed in claim 1, wherein the active slider is connected with a quick-compressing assembly comprising an elbow clip, the lower end of the elbow clip is connected with the active slider through an aluminum column, and the elbow clip is fixed on the back plate.

3. The special fixture for testing button cells according to claim 2, wherein a follower slider is disposed between the driving slider and the support plate, a sliding shaft is disposed at an upper end of the follower slider, the sliding shaft penetrates into a corresponding hole of the driving slider, a small spring is disposed between the follower slider and the driving slider, and a large spring is disposed between the follower slider and the support plate.

4. The special fixture for testing button cells as claimed in claim 3, wherein the front part of the support plate is provided with a shielding plate.

5. The special fixture for testing button cells according to any one of claims 1 to 4, wherein a plurality of groups of the special fixture for testing button cells are mounted on the back plate side by side.

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