CN218272378U - Button battery charging and discharging clamping device - Google Patents

Abstract

The utility model provides a button battery charging and discharging clamping device, which includes a positive terminal cover and a negative terminal cover, the positive terminal cover is provided with a positive connection terminal for connecting the positive electrode of the button battery, and the negative terminal cover is provided with a button for connecting The negative connection terminal of the negative pole of the battery; and, because the positive terminal cover and the negative terminal cover are connected, a clamping space for placing a button battery is formed between the two; and an error-proof structure is provided on the positive terminal cover or the negative terminal cover ; The error-proof structure is used to prevent the button battery from being placed in reverse, so that the positive pole of the placed button battery is connected to the positive connection terminal, and the negative pole is connected to the negative connection terminal. The button battery charging and discharging clamping device described in the utility model can prevent the button battery from being placed in reverse, so as to avoid safety problems caused by reverse connection of the positive and negative poles of the button battery, and has strong practicability.

Description

Button battery charging and discharging clamping device

technical field

The utility model relates to the technical field of battery testing, in particular to a button battery charging and discharging clamping device.

Background technique

Button batteries are widely used in various miniature electronic products due to their small size. Button cell, also known as button cell, refers to a battery that looks like a small button. Generally speaking, the diameter is larger and the thickness is thinner. The diameter generally ranges from 4.8mm to 30mm, and the thickness is 1.0 mm to 7.7mm. Meanwhile, the bottom profile of the button battery is generally in the shape of a truncated cone, that is, the size of the negative terminal is smaller than that of the positive terminal, and the bottom sidewall of the button battery is usually arc-shaped.

Button batteries are divided into two categories: chemical batteries and physical batteries, and chemical batteries are the most commonly used, and this type of battery is mainly composed of anode (positive electrode), cathode (negative electrode) and electrolyte, etc. Its shell is made of stainless steel and used as the positive electrode. , the negative electrode is a stainless steel circular cover, and an insulating sealing ring is provided between the positive electrode shell and the negative electrode cover. The sealing ring can also prevent the electrolyte from leaking to ensure the safety of the button battery.

During the research and development process of the button battery, it is usually necessary to test its battery performance in order to further improve and perfect the battery performance based on the tested data. In the battery performance test, it is necessary to conduct a charge-discharge cycle test on the button battery, that is, to use the charge-discharge test equipment to charge and discharge the battery, and to monitor and record the current value, voltage value and capacity during the charge-discharge process in real time. The change.

At present, when testing the charge and discharge performance of the button battery, the button battery and the charge and discharge equipment are generally connected to the positive and negative electrodes of the button battery by using a battery clip. Because the test current required by the button battery is small and the accuracy is high, and the battery The contact area between the clip and the battery is small, and it is easy to loosen and cause current fluctuations. During the charging and discharging process, it is easy to have problems such as fluctuating accuracy, inaccurate charging and discharging capacity, and unstable test data.

Moreover, if the battery clip is directly connected to the positive and negative poles of the button battery, it is also easy to cause the reverse connection of the positive and negative poles, which leads to new safety problems.

Utility model content

In view of this, the utility model aims to propose a button battery charging and discharging clamping device, which can prevent the positive and negative poles of the button battery from being reversely connected, and has a better use effect.

In order to achieve the above object, the technical solution of the utility model is achieved in that:

A button battery charging and discharging clamping device, which includes a positive terminal cover and a negative terminal cover; the positive terminal cover is provided with a positive connection terminal for connecting the positive electrode of the button battery, and the negative terminal cover is provided with a terminal for connecting the the negative connection terminal for the negative pole of the coin cell battery; and,

The positive end cap and the negative end cap are connected to form a clamping space between the two for placing the button battery; and,

The positive end cap or the negative end cap is provided with an error prevention structure;

The error-proof structure is used to prevent the button battery from being placed in reverse, so that the positive pole of the placed button battery is connected to the positive connection terminal, and the negative pole is connected to the negative connection terminal.

Further, a battery slot for accommodating the button battery is formed on the negative terminal cover; and, the side wall at the bottom of the battery slot follows the contour of the outer peripheral wall of the button battery to form the error-proof structure.

Further, the positive end cap is provided with an internal thread; the negative end cap is provided with an external thread; the positive end cap and the negative end cap are screwed to the external thread through the internal thread.

Further, the outer peripheral walls of the positive end cap and the negative end cap are respectively provided with anti-slip structures.

Further, the anti-slip structure includes anti-slip patterns rolled on the outer peripheral walls of the positive end cap and the negative end cap.

Further, the positive end cap and the negative end cap are respectively provided with ventilation holes communicating with the clamping space.

Further, the ventilation holes on the positive terminal cover are distributed at intervals around the positive connecting terminal; and, the ventilation holes on the negative terminal cover are arranged around the negative connecting terminal A plurality of circumferentially spaced distributions.

Further, the positive connection terminal includes a positive pole provided on the positive terminal cover;

The positive pole has a positive inner connection end located inside the positive end cap, and a positive outer connection end located outside the positive end cap; the negative connection terminal includes a negative pole disposed on the negative end cap; The negative pole has a negative inner connection end located inside the negative end cover, and a negative outer connection end located outside the negative end cover.

Further, both the inner connection end of the positive electrode and the inner connection end of the negative electrode have a disk-shaped structure.

Further, both the positive external connection end and the negative external connection end are flat.

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

The button battery charging and discharging clamping device described in the utility model can prevent the button battery from being placed in reverse by setting an error-proof structure, so as to avoid safety problems caused by the reverse connection of the positive and negative poles of the button battery, thereby ensuring that the button battery is fully charged. The safety of the discharge test can effectively improve the use effect of the device.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is a structural schematic diagram of a viewing angle of the button battery charging and discharging clamping device described in the embodiment of the present invention;

Fig. 2 is a structural schematic diagram of another viewing angle of the button battery charging and discharging clamping device described in the embodiment of the present invention;

Fig. 3 is a structural schematic view of the button battery described in the embodiment of the present invention when it is placed forward;

Fig. 4 is a schematic structural view of the button battery described in the embodiment of the present invention when placed in reverse;

Fig. 5 is a schematic structural view of the positive connecting terminal described in the embodiment of the present invention;

Explanation of reference signs:

1. Positive end cap; 2. Negative end cap; 201, external thread;

3. Positive pole connection terminal; 301, positive pole internal connection terminal; 302, positive pole external connection terminal;

4. Negative pole connection terminal; 401, negative pole internal connection terminal; 402, negative pole external connection terminal;

5. Button battery; 6. Battery slot; 601. Error-proof structure;

7. Ventilation holes.

detailed description

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

In the description of the present utility model, it should be noted that if there are terms such as "upper", "lower", "inner", "back", etc. indicating orientation or positional relationship, it is based on the orientation or position shown in the drawings. The relationship is only for the convenience of describing the utility model and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the utility model.

In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection" and "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary; connected. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in combination with specific situations.

The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

The utility model relates to a button battery charging and discharging clamping device, as shown in Fig. 1 to Fig. 5, the button battery charging and discharging clamping device includes a positive terminal cover 1 and a negative terminal cover 2, and a positive The positive connection terminal 3 connected to the positive pole of the button battery 5 is provided on the negative terminal cover 2 with the negative connection terminal 4 for connecting the negative pole of the button battery 5 .

At the same time, the positive end cap 1 and the negative end cap 2 are connected to form a clamping space for placing the button battery 5 therebetween, and the positive end cap 1 or the negative end cap 2 is provided with an error-proof structure 601 . The error prevention structure 601 is used to prevent the button battery 5 from being placed in reverse, so that the positive pole of the placed button battery 5 is connected to the positive terminal 3 , and the negative pole is connected to the negative terminal 4 .

It is worth noting that the positive end cap 1 and the negative end cap 2 of this embodiment are preferably made of insulating materials, such as nylon, when used. When the button battery charging and discharging clamping device of this embodiment is in use, conventional charging and discharging testing equipment is externally connected, and the positive and negative poles of the charging and discharging testing equipment are electrically connected to the positive connecting terminal 3 and the negative connecting terminal 4 respectively.

Based on the above overall introduction, for the button battery charge and discharge clamping device of this embodiment, as a preferred implementation form, as shown in Figures 2 to 3, the negative terminal cover 2 of this embodiment is formed with a button for accommodating buttons. Battery slot 6 for battery 5 . Simultaneously, the side wall at the bottom of the battery slot 6 conforms to the contour of the peripheral wall of the button battery 5 to form the above-mentioned error-proof structure 601 .

It should be noted that the button battery 5 of this embodiment can be conventional, that is, it generally refers to a button battery 5 product whose outline size of the negative end is smaller than that of the positive end. Therefore, the above-mentioned error-proof structure 601 is in the state shown in FIG. 3 , the cross-sectional diameter of the bottom is smaller than the cross-sectional size of the top, so that the button battery 5 can only be placed in the battery slot 6 with the positive pole facing up and the negative pole facing down. If the button battery 5 is placed in reverse, as shown in FIG. 4 , the negative terminal part of the button battery 5 is exposed from the battery slot 6 .

And still as shown in FIG. 4 , there is a certain gap D between the bottom of the reversely placed button battery 5 , that is, its positive terminal, and the negative terminal 4 . The size of the gap D is equivalent to the height dimension of the error-proof structure 601 in the state shown in FIG. mm and so on.

The setting of the error-proof structure 601 can prevent the reversely placed button battery 5 from being successfully placed in the battery slot 6 and the negative end part is exposed, so that the tester can adjust the placement direction of the button battery 5 so that subsequent tests can be carried out normally.

As preferably, still as shown in Figure 2, the above-mentioned positive end cap 1 is provided with an internal thread, and the negative end cap 2 is provided with an external thread 201, and the positive end cap 1 and the negative end cap 2 pass through the internal thread and the external thread 201 are screwed together, and the internal thread in the positive end cap 1 is not clearly shown in the figure.

It is worth mentioning that other detachable connection methods can be adopted between the positive end cap 1 and the negative end cap 2 in this embodiment besides the method of screwing and tightening. A buckle is provided between the negative end caps 2 .

In order to improve the frictional force of the outer peripheral walls of the positive end cap 1 and the negative end cap, as shown in FIG. 1 and FIG. 2 , the outer peripheral walls of the positive end cap 1 and the negative end cap 2 of this embodiment are respectively provided with anti-slip structures. And preferably, the anti-slip structure includes anti-slip patterns rolled on the outer peripheral walls of the positive end cap 1 and the negative end cap 2 .

Of course, in addition to the above-mentioned anti-skid pattern formed by rolling, the design of the above-mentioned anti-skid structure can also be designed into other structures with the same use effect, such as several protrusions.

In addition, referring to FIG. 2 again, the positive terminal cover 1 and the negative terminal cover 2 of this embodiment are respectively provided with ventilation holes 7 communicating with the clamping space, so as to dry the electrolyte leaked during the charging and discharging test. , and then prevent the positive end cap 1 and the negative end cap 2 from being damaged due to corrosion.

During specific implementation, as a further improvement, the ventilation holes 7 on the positive terminal cover 1 are a plurality of circumferentially spaced distributions of the positive connection terminal 3, and the ventilation holes 7 on the negative terminal cover 2 are the holes of the negative connection terminal 4. A plurality of circumferentially spaced distributions.

In Fig. 2, only four ventilation holes 7 are shown on the positive end cover 1 and the negative end cover 2 respectively, but in actual application, the number of ventilation holes 7 can be designed and adjusted according to the actual air-drying requirements, so that Meet the requirements of air-drying the leaked electrolyte during the charge and discharge test, such as designing 5 or 6.

Also as a preferred implementation form, as shown in Fig. 2, Fig. 4 and Fig. 5, the positive connection terminal 3 of this embodiment includes a positive post arranged on the positive end cover 1, and the positive post has a The positive inner connecting end 301 inside the positive electrode cover 1, and the positive electrode outer connecting end 302 located outside the positive end cap 1. The negative connecting terminal 4 of the present embodiment includes a negative post arranged on the negative end cover 2, and the negative post has a negative inner connection end 401 located inside the negative end cover 2, and a negative outer connection end located outside the negative end cover 2. 402.

It is worth mentioning that the above-mentioned positive and negative poles are preferably made of copper, and of course, materials with better conductivity, such as silver, can also be used. In addition, if the positive pole and the negative pole of this embodiment are corroded due to the leakage of battery fluid from the button battery 5 during use, the problem of pole damage can also be solved by grinding the corroded area or replacing the pole, so as to reduce The maintenance cost and use cost of the button battery charging and discharging clamping device in this embodiment.

In order to increase the contact area between the positive pole and the negative pole and the button battery 5 , as shown in FIG. 4 and FIG. 5 , the above-mentioned positive inner connection end 301 and negative inner connection end 401 both have a disk-shaped structure. At the same time, the design of the disk structure can also form the positive pole and the negative pole in the positive pole cap 1 and the negative pole cap 2 respectively during assembly, so as to avoid detachment.

Preferably, both the positive external connection end 302 and the negative external connection end 402 are flat. When performing a charge and discharge test on the button battery 5 , the charge and discharge test equipment generally uses a battery clip to connect its positive and negative electrodes to the positive external connection end 302 and the negative external connection end 402 respectively. Therefore, setting both the positive external connection end 302 and the negative external connection end 402 in a flat shape can facilitate the realization of surface contact connection, so as to avoid poor contact and weaken the conductive performance, resulting in inaccurate test results, thereby improving the charging and discharging test. stability and accuracy.

When the button battery charging and discharging clamping device described in this embodiment is in use, the button battery 5 is first placed in the battery groove 6 of the negative terminal cover 2, and then the positive terminal cover 1 and the negative terminal cover 2 are tightened to The positive pole of the placed button battery 5 is connected to the positive inner connection terminal 301 of the positive pole column, and the negative pole is connected to the negative pole internal connection terminal 401 of the negative pole column. The connecting end 302 is electrically connected to the negative external connecting end 402 of the negative pole. In this way, the button battery 5 can be charged and discharged.

The button battery charging and discharging clamping device described in this embodiment can prevent the button battery 5 from being placed in reverse by setting the error-proof structure 601, so as to avoid safety problems caused by the reverse connection of the positive and negative poles of the button battery 5, thereby ensuring The safety of the button battery 5 charge and discharge test, thereby effectively improving the use effect of the device.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (10)

1. A button battery charging and discharging clamping device, characterized in that: It includes a positive terminal cover (1) and a negative terminal cover (2); the positive terminal cover (1) is provided with a positive connection terminal (3) for connecting the positive pole of a button battery (5), and the negative terminal cover (2) It is provided with a negative connection terminal (4) for connecting the negative pole of the button battery (5); and, The positive end cap (1) and the negative end cap (2) are connected to form a clamping space between the two for placing the button battery (5); and, An error prevention structure (601) is provided on the positive end cap (1) or the negative end cap (2); The error-proof structure (601) is used to prevent the button battery (5) from being placed in reverse, so that the positive pole of the button battery (5) after placement is connected to the positive terminal (3), and the negative pole is connected to the positive terminal (3). The above-mentioned negative connection terminal (4) is connected. 2. The button battery charging and discharging clamping device according to claim 1, characterized in that: A battery slot (6) for accommodating the button battery (5) is formed on the negative terminal cover (2); and, The side wall at the bottom of the battery slot (6) is arranged to conform to the contour of the peripheral wall of the button battery (5), so as to constitute the error-proof structure (601). 3. The button battery charging and discharging clamping device according to claim 2, characterized in that: The positive end cap (1) is provided with an internal thread; The negative terminal cover (2) is provided with external threads (201); The positive terminal cap (1) and the negative terminal cap (2) are screwed to the external thread (201) through the internal thread. 4. The button battery charging and discharging clamping device according to claim 1, characterized in that: Anti-slip structures are respectively provided on the outer peripheral walls of the positive end cap (1) and the negative end cap (2). 5. The button battery charging and discharging clamping device according to claim 4, characterized in that: The anti-slip structure includes anti-slip patterns rolled on the outer peripheral walls of the positive end cap (1) and the negative end cap (2). 6. The button battery charging and discharging clamping device according to claim 1, characterized in that: The positive end cap (1) and the negative end cap (2) are respectively provided with ventilation holes (7) communicating with the clamping space. 7. The button battery charging and discharging clamping device according to claim 6, characterized in that: The ventilation holes (7) on the positive end cover (1) are a plurality of circumferentially spaced distributions around the positive connecting terminal (3); and, The ventilation holes (7) on the negative terminal cover (2) are multiple spaced around the negative connection terminal (4). 8. The button battery charging and discharging clamping device according to any one of claims 1 to 7, characterized in that: The positive connection terminal (3) includes a positive pole provided on the positive end cover (1); The positive pole 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) includes a negative pole provided on the negative terminal cover (2); The negative pole has a negative inner connection end (401) located inside the negative end cover (2), and a negative outer connection end (402) located outside the negative end cover (2). 9. The button battery charging and discharging clamping device according to claim 8, characterized in that: Both the positive electrode internal connection end (301) and the negative electrode internal connection end (401) have a disk-shaped structure. 10. The button battery charging and discharging clamping device according to claim 8, characterized in that: Both the positive external connection end (302) and the negative external connection end (402) are flat.

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