CN218272378U - Button cell charging and discharging clamping device - Google Patents
Button cell charging and discharging clamping device Download PDFInfo
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- CN218272378U CN218272378U CN202121778328.8U CN202121778328U CN218272378U CN 218272378 U CN218272378 U CN 218272378U CN 202121778328 U CN202121778328 U CN 202121778328U CN 218272378 U CN218272378 U CN 218272378U
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Abstract
The utility model provides a button cell charging and discharging clamping device, which comprises an anode end cover and a cathode end cover, wherein the anode end cover is provided with an anode connecting terminal used for connecting the anode of the button cell, and the cathode end cover is provided with a cathode connecting terminal used for connecting the cathode of the button cell; the positive end cover and the negative end cover are connected, so that a clamping space for placing the button cell is formed between the positive end cover and the negative end cover; and the positive end cover or the negative end cover is provided with an error-proof structure; the mistake proofing structure is used for preventing the button cell from being placed reversely, so that the positive electrode of the placed button cell is connected with the positive electrode connecting terminal, and the negative electrode of the placed button cell is connected with the negative electrode connecting terminal. Button cell charge and discharge clamping device, can prevent that button cell from reversely placing to avoid causing the safety problem because of button cell's positive negative pole is reverse to connect, and the practicality is strong.
Description
Technical Field
The utility model relates to a battery test technical field, in particular to button cell charge-discharge clamping device.
Background
Button cells are widely used in various miniature electronic products due to their small size. A button cell (button cell) is also called a button cell, and refers to a cell with an external dimension like a small button, generally with a larger diameter and a thinner thickness, and the diameter of the button cell is generally from 4.8mm to 30mm, and the thickness of the button cell is from 1.0mm to 7.7 mm. Meanwhile, the bottom profile of the button cell is generally in a circular truncated cone shape, that is, the size of the negative electrode end of the button cell is smaller than that of the positive electrode end, and the bottom side wall of the button cell is generally in an arc shape.
Button cells are divided into two types, namely chemical cells and physical cells, the chemical cells are most commonly used, the cells mainly comprise an anode (positive electrode), a cathode (negative electrode), electrolyte and the like, a shell of the cell is made of stainless steel materials and serves as the positive electrode, the negative electrode is a stainless steel circular cover, a sealing ring with an insulating effect is arranged between the positive electrode shell and the negative electrode cover, and the sealing ring can also prevent the electrolyte from leaking so as to ensure the safety of the button cells.
During the development process of button cells, the cell performance of the button cells is usually required to be tested, so that the cell performance can be further improved and perfected according to the tested data. During the performance test of the battery, the button battery needs to be subjected to charge and discharge cycle test, namely, the charge and discharge test equipment is used for carrying out charge and discharge cycle operation on the battery, and the current value, the voltage value and the change of electric capacity in the charge and discharge process are monitored and recorded in real time.
At present, when a button cell is subjected to charge and discharge performance testing, the button cell is generally connected with charge and discharge equipment through a cell clamp and a button cell anode and cathode, and due to the fact that the button cell needs very small test current and high precision, the contact area between the cell clamp and the cell is small, the cell clamp is easy to loosen and generates current fluctuation, the problems of accuracy drift, inaccurate charge and discharge capacity and unstable test data are prone to occurring in the charge and discharge process.
Moreover, the battery clamp is directly connected with the positive electrode and the negative electrode of the button battery, and the situation that the positive electrode and the negative electrode are reversely connected is easy to occur, so that a new safety problem is caused.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to a button cell charging and discharging clamping device, which can prevent the reverse connection of the positive electrode and the negative electrode of the button cell, and has a better using effect.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
a button cell charging and discharging clamping device comprises a positive end cover and a negative end cover; the positive end cover is provided with a positive connecting terminal for connecting the positive electrode of the button battery, and the negative end cover is provided with a negative connecting terminal for connecting the negative electrode of the button battery; and the number of the first and second groups,
the positive end cover and the negative end cover are connected, so that a clamping space for placing the button cell is formed between the positive end cover and the negative end cover; and the number of the first and second electrodes,
the positive end cover or the negative end cover is provided with a mistake proofing structure;
the mistake proofing structure is used for preventing the button cell from being placed reversely, so that the anode of the button cell after being placed is connected with the anode connecting terminal, and the cathode of the button cell is connected with the cathode connecting terminal.
Further, a battery groove for accommodating the button battery is formed on the negative end cover; and the side wall of the bottom of the battery jar is arranged along the outline of the peripheral wall of the button battery, so that the error-proof structure is formed.
Furthermore, internal threads are arranged in the positive end cover; the negative end cover is provided with an external thread; the positive end cover and the negative end cover are connected with the external thread through the internal thread in a threaded manner.
Furthermore, the peripheral wall of the positive end cover and the peripheral wall of the negative end cover are respectively provided with an anti-skidding structure.
Further, the anti-slip structure comprises anti-slip patterns rolled on the peripheral walls of the positive end cover and the negative end cover.
Furthermore, the positive end cover and the negative end cover are respectively provided with a vent hole communicated with the clamping space.
Furthermore, the vent holes on the positive end cover are distributed at intervals in the circumferential direction around the positive connecting terminal; and the vent holes on the negative end cover are rings, and the negative connecting terminals are circumferentially distributed at intervals.
Further, the positive connecting terminal comprises a positive post arranged on the positive end cover;
the positive pole is provided with a positive pole inner connecting end positioned in the positive pole end cover and a positive pole outer connecting end positioned outside the positive pole end cover; the negative connecting terminal comprises a negative pole column arranged on the negative end cover; the negative pole column is provided with a negative pole inner connecting end positioned in the negative pole end cover and a negative pole outer connecting end positioned outside the negative pole end cover.
Furthermore, the positive electrode internal connection end and the negative electrode internal connection end are both in a disc-shaped structure.
Further, the positive electrode external connecting end and the negative electrode external connecting end are both flat.
Compared with the prior art, the utility model discloses following advantage has:
button cell charge and discharge clamping device, through setting up the mistake proofing structure, can prevent that button cell from reversely placing to avoid causing the safety problem because of button cell's positive negative pole is reverse to connect, and then can ensure button cell charge and discharge test's security, thereby effectively improve device's result of use.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic view of an angle of view of a button cell charging and discharging clamping device according to an embodiment of the present invention;
fig. 2 is a schematic view of another view structure of the button battery charging and discharging clamping device according to the embodiment of the present invention;
fig. 3 is a schematic structural view of the button cell according to the embodiment of the present invention when it is placed in the forward direction;
fig. 4 is a schematic structural view of the button cell according to the embodiment of the present invention when the button cell is placed in a reverse direction;
fig. 5 is a schematic structural diagram of a positive connecting terminal according to an embodiment of the present invention;
description of reference numerals:
1. a positive end cap; 2. a negative end cap; 201. an external thread;
3. a positive electrode connection terminal; 301. a positive electrode inner connection end; 302. an anode external connection end;
4. a negative electrode connecting terminal; 401. a negative electrode inner connection end; 402. a negative electrode outer connecting end;
5. a button cell; 6. a battery case; 601. a mistake proofing structure;
7. a vent hole.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that if terms indicating directions or positional relationships such as "up", "down", "inside", "back", etc. appear, they are based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
Furthermore, in the description of the present invention, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise explicitly limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The utility model relates to a button cell charge-discharge clamping device, as shown in fig. 1 to fig. 5, this button cell charge-discharge clamping device includes anodal end cover 1 and negative pole end cover 2, is equipped with the anodal connecting terminal 3 that is used for connecting button cell 5 anodal on anodal end cover 1, then is equipped with the negative connecting terminal 4 that is used for connecting button cell 5 negative pole on negative pole end cover 2.
Meanwhile, the positive end cover 1 and the negative end cover 2 are connected to form a clamping space for placing the button cell 5 therebetween, and the positive end cover 1 or the negative end cover 2 is provided with an error-proof structure 601. The mistake-proofing structure 601 is used for preventing the button cell 5 from being placed reversely, so that the positive electrode of the placed button cell 5 is connected with the positive connecting terminal 3, and the negative electrode of the placed button cell 5 is connected with the negative connecting terminal 4.
It should be noted that, when the positive end cap 1 and the negative end cap 2 of the present embodiment are used, they are preferably made of an insulating material, such as nylon. When the button cell charging and discharging clamping device is used, conventional charging and discharging testing equipment is further connected externally, and the positive electrode and the negative electrode of the charging and discharging testing equipment are electrically connected with the positive electrode connecting terminal 3 and the negative electrode connecting terminal 4 respectively.
Based on the above general description, as a preferred embodiment of the button battery charging and discharging clamping device of the present embodiment, as shown in fig. 2 to fig. 3, a battery groove 6 for accommodating a button battery 5 is formed on the negative end cap 2 of the present embodiment. Meanwhile, the side wall of the bottom of the battery jar 6 is arranged along the contour of the outer peripheral wall of the button battery 5, so as to form the error-proof structure 601.
It should be noted that the button cell 5 of the present embodiment may be a conventional button cell 5, that is, a button cell 5 product with a negative terminal outline size smaller than a positive terminal outline size is generally used. Therefore, in the state shown in fig. 3, the cross-sectional diameter of the bottom of the error-proofing structure 601 is smaller than that of the top, so that the button cell 5 can only be placed in the cell slot 6 with the positive electrode facing upwards and the negative electrode facing downwards. If the button cell 5 is placed in the reverse direction, the negative end of the button cell 5 is partially exposed from the battery groove 6 as shown in fig. 4.
And as also shown in fig. 4, the bottom of the button cell 5, i.e. the positive terminal thereof, which is placed in the opposite direction, is spaced apart from the negative connection terminal 4 by a certain gap D. The size of the gap D corresponds to the height of the error-proofing structure 601 in the state shown in fig. 4, and the size of the gap D can be designed according to the actual space requirement, such as 0.8mm, 1.1mm or 1.3 mm.
The error-proofing structure 601 can prevent the button cell 5 placed reversely from being smoothly placed in the cell slot 6 and expose the negative end part, so that the tester can adjust the placing direction of the button cell 5 to normally perform the subsequent test.
Preferably, as also shown in fig. 2, the positive end cap 1 is internally provided with internal threads, the negative end cap 2 is provided with external threads 201, the positive end cap 1 and the negative end cap 2 are in threaded connection with the external threads 201 through the internal threads, and the internal threads in the positive end cap 1 are not explicitly shown in the figure.
It should be mentioned that, in addition to the screw-connection and screwing manner, other detachable connection manners may be adopted between the positive end cap 1 and the negative end cap 2, for example, a snap-fit manner is arranged between the positive end cap 1 and the negative end cap 2.
In order to increase the friction force between the cathode end cap 1 and the cathode end peripheral wall, as shown in fig. 1 and fig. 2, the cathode end cap 1 and the cathode end cap 2 of the present embodiment are respectively provided with an anti-slip structure on the peripheral wall. And preferably, the anti-slip structure comprises anti-slip patterns rolled on the peripheral walls of the positive end cap 1 and the negative end cap 2.
Of course, the anti-slip structure may be designed into other structures with the same use effect, such as a plurality of protrusions, besides the anti-slip pattern formed by rolling.
In addition, referring to fig. 2 again, the positive end cap 1 and the negative end cap 2 of this embodiment are respectively provided with a vent hole 7 communicating with the inside of the clamping space for air-drying the electrolyte leaked in the charging and discharging test process, thereby preventing the positive end cap 1 and the negative end cap 2 from being damaged due to corrosion.
In specific implementation, as a further improvement, the vent holes 7 on the positive end cap 1 are circumferentially spaced around the positive connection terminal 3, and the vent holes 7 on the negative end cap 2 are circumferentially spaced around the negative connection terminal 4.
Fig. 2 only shows that the positive end cap 1 and the negative end cap 2 are respectively provided with 4 vent holes 7, and in practical application, the number of the vent holes 7 can be correspondingly designed and adjusted according to actual air drying requirements so as to meet the requirements of air drying leaked electrolyte in the charging and discharging test process, such as 5 or 6.
Also as a preferred embodiment, as shown in fig. 2, 4 and 5, the positive connection terminal 3 of the present embodiment includes a positive post provided on the positive end cap 1, and the positive post has a positive inner connection end 301 located inside the positive end cap 1 and a positive outer connection end 302 located outside the positive end cap 1. The negative connection terminal 4 of the present embodiment includes a negative post disposed on the negative end cap 2, and the negative post has a negative inner connection terminal 401 located inside the negative end cap 2 and a negative outer connection terminal 402 located outside the negative end cap 2.
It should be noted that the material of the positive electrode post and the negative electrode post is preferably copper, but a material with better conductivity, such as silver, may also be used. In addition, in the use process of the positive pole column and the negative pole column of the embodiment, if the button cell 5 leaks the cell liquid and is corroded, the problem that the pole column is damaged can be solved by polishing the corrosion area or replacing the pole column, so that the maintenance cost and the use cost of the button cell charging and discharging clamping device of the embodiment are reduced.
In order to increase the contact area between the positive and negative posts and the button cell 5, as shown in fig. 4 and 5, the positive and negative interconnection terminals 301 and 401 are both disc-shaped. Meanwhile, due to the design of the disc-shaped structure, the positive pole column and the negative pole column can be limited in the positive end cover 1 and the negative end cover 2 respectively during assembly, so that separation is avoided.
Preferably, the positive electrode outer connection end 302 and the negative electrode outer connection end 402 are both flat. When the button cell 5 is subjected to a charge and discharge test, the charge and discharge test equipment generally connects the positive electrode and the negative electrode of the charge and discharge test equipment with the positive external connection end 302 and the negative external connection end 402 by using a battery clamp. Therefore, the positive outer connecting end 302 and the negative outer connecting end 402 are both flat, which is beneficial to realizing surface contact connection, so that the situation that the conductivity is weakened due to poor contact is avoided, the test result is inaccurate, and the stability and the accuracy of the charge and discharge test are improved.
When the button cell charging and discharging clamping device is used, the button cell 5 is placed in the cell slot 6 of the negative end cover 2 in the forward direction, then the positive end cover 1 and the negative end cover 2 are screwed, so that the positive electrode of the placed button cell 5 is connected with the positive electrode inner connecting end 301 of the positive pole column, the negative electrode is connected with the negative electrode inner connecting end 401 of the negative pole column, and finally the positive electrode and the negative electrode of the charging and discharging test equipment are electrically connected with the positive electrode outer connecting end 302 of the positive pole column and the negative electrode outer connecting end 402 of the negative pole column respectively. Thus, the button cell 5 can be subjected to charge and discharge tests.
The button cell charge and discharge clamping device of this embodiment through setting up mistake proofing structure 601, can prevent that button cell 5 from placing in reverse to avoid causing the safety problem because of button cell 5's positive negative pole is reverse to connect, and then can ensure button cell 5 charge and discharge test's security, thereby effectively improve the result of use of the device.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a button cell charge-discharge clamping device which characterized in that:
comprises an anode end cover (1) and a cathode end cover (2); the positive end cover (1) is provided with a positive connecting terminal (3) for connecting the positive electrode of a button cell (5), and the negative end cover (2) is provided with a negative connecting terminal (4) for connecting the negative electrode of the button cell (5); and the number of the first and second groups,
the positive end cover (1) and the negative end cover (2) are connected, so that a clamping space for placing the button cell (5) is formed between the positive end cover and the negative end cover; and the number of the first and second electrodes,
the positive end cover (1) or the negative end cover (2) is provided with a mistake-proofing structure (601);
the mistake proofing structure (601) is used for preventing the button cell (5) from being placed reversely, so that the positive pole of the button cell (5) after being placed is connected with the positive pole connecting terminal (3), and the negative pole is connected with the negative pole connecting terminal (4).
2. The button cell charge and discharge clamping device of claim 1, wherein:
a battery groove (6) for accommodating the button battery (5) is formed on the negative end cover (2); and the number of the first and second groups is,
the side wall of the bottom of the battery jar (6) is arranged along the outline of the peripheral wall of the button battery (5) to form the error-proof structure (601).
3. The button cell charge and discharge clamping device of claim 2, wherein:
an internal thread is arranged in the positive end cover (1);
the negative end cover (2) is provided with an external thread (201);
the positive end cover (1) and the negative end cover (2) are connected with the external thread (201) in a threaded mode through the internal thread.
4. The button cell charge and discharge clamping device of claim 1, wherein:
and the peripheral walls of the anode end cover (1) and the cathode end cover (2) are respectively provided with an anti-skidding structure.
5. The button cell charge and discharge clamping device of claim 4, wherein:
the anti-slip structure comprises anti-slip patterns rolled on the peripheral wall of the anode end cover (1) and the peripheral wall of the cathode end cover (2).
6. The button cell charge and discharge clamping device of claim 1, wherein:
and the positive end cover (1) and the negative end cover (2) are respectively provided with a ventilation hole (7) communicated with the clamping space.
7. The button cell charge-discharge clamping device of claim 6, wherein:
the vent holes (7) in the positive end cover (1) are circumferentially distributed at intervals around the positive connecting terminal (3); and the number of the first and second groups,
the negative end cover (2) is provided with a plurality of ventilation holes (7) which are rings and are distributed at intervals in the circumferential direction of the negative connecting terminal (4).
8. Button cell charge and discharge clamping device according to any one of claims 1 to 7, characterized in that:
the positive connecting terminal (3) comprises a positive post arranged on the positive end cover (1);
the positive pole is provided with a positive pole inner connecting end (301) positioned in the positive pole end cover (1) and a positive pole outer connecting end (302) positioned outside the positive pole end cover (1);
the negative connecting terminal (4) comprises a negative pole column arranged on the negative end cover (2);
the negative pole column is provided with a negative pole inner connecting end (401) positioned in the negative pole end cover (2) and a negative pole outer connecting end (402) positioned outside the negative pole end cover (2).
9. The button cell charge and discharge clamping device of claim 8, wherein:
the positive electrode inner connecting end (301) and the negative electrode inner connecting end (401) are both disc-shaped structures.
10. The button cell charge and discharge clamping device of claim 8, wherein:
the positive electrode external connection end (302) and the negative electrode external connection end (402) are both flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121778328.8U CN218272378U (en) | 2021-07-30 | 2021-07-30 | Button cell charging and discharging clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121778328.8U CN218272378U (en) | 2021-07-30 | 2021-07-30 | Button cell charging and discharging clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218272378U true CN218272378U (en) | 2023-01-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121778328.8U Active CN218272378U (en) | 2021-07-30 | 2021-07-30 | Button cell charging and discharging clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218272378U (en) |
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2021
- 2021-07-30 CN CN202121778328.8U patent/CN218272378U/en active Active
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