Steel shell button cell PACK structure

Abstract

The utility model discloses a steel shell button cell PACK structure which comprises a roll core which is wound towards one direction; a positive pole piece and a negative pole piece, wherein the positive pole piece and the negative pole piece are uniformly distributed on the roll core; the circular welding disc surface of the positive electrode nickel sheet is positioned at the position of the positive electrode end, and the redundant negative electrode end is completely covered by the arc-shaped edge of the positive electrode nickel sheet; the positive electrode nickel sheet is led from the positive electrode surface of the battery to the negative electrode surface of the battery; the negative electrode nickel sheet is welded on the battery negative electrode surface of the roll core; and the winding direction of the battery core is opposite to the leading-out direction of the positive electrode nickel sheet, so that opposite current directions are formed, and a magnetic field generated in the discharging process of the battery is counteracted. According to the utility model, the special winding direction is matched with the opposite leading-out direction of the positive electrode nickel sheet, so that opposite current is formed, a magnetic field generated by battery discharge is counteracted, and the bottom noise of the earphone is reduced to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the field of batteries, and particularly relates to a steel shell button battery PACK structure. Background Art

[0002] With the rapid development of the wireless Bluetooth headset market, the demand for the corresponding core component, the steel button battery, is increasing day by day. As an important energy source for Bluetooth headsets, the performance of the steel button battery directly affects the overall user experience of the headset. However, during charging and discharging, the battery will inevitably generate an electromagnetic field, which affects the normal operation and accuracy of precision components that are sensitive to the electromagnetic field, affects the playback quality of the headset, forms background noise interference, and may also have a negative impact on the user's auditory experience. To address this issue, the common solution on the market currently is to isolate the magnetic field generated by the battery by pasting insulating adhesive paper on both sides of the steel button battery. However, this solution alleviates the impact of the electromagnetic field on the headset playback quality to a certain extent, so relying solely on insulating adhesive paper to isolate the electromagnetic field is not a perfect solution.

[0003] Pasting insulating adhesive paper on the steel button battery has a poor effect on reducing background noise and does not fundamentally solve the electromagnetic field generated during battery charging and discharging. Moreover, the effectiveness of pasting insulating adhesive paper depends on the technical parameter capabilities of the magnetic shielding material. The higher the parameter capabilities, the higher the corresponding cost. In addition, factors such as the bonding quality of the insulating adhesive paper, the shape and size of the battery will also affect the effect of reducing background noise. If the insulating adhesive paper fails to completely adhere to the battery surface, or the special shape of the battery causes the insulating adhesive paper to be unable to completely cover it, then the effect of reducing background noise will be greatly reduced. Summary of the Invention

[0004] To solve the above problems, the utility model provides a steel shell button battery PACK structure, which reduces the impact of the magnetic field generated during battery discharge on the sound quality by controlling the winding direction of the core and the opposite direction of the current formed by the lead-out of the positive nickel sheet.

[0005] The utility model is realized through the following technical solutions: A steel shell button battery PACK structure, comprising:

[0006] A core, which is wound in one direction;

[0007] A positive electrode plate and a negative electrode plate, which are evenly arranged on the core;

[0008] A positive nickel sheet, the circular welding disk surface of the positive nickel sheet is positioned at the end of the positive electrode, and the excess negative electrode end is completely covered by the arc-shaped edge of the positive nickel sheet; the positive nickel sheet leads from the positive electrode surface of the battery to the negative electrode surface of the battery;

[0009] A negative nickel sheet, which is welded on the negative electrode surface of the core of the battery;

[0010] The winding direction of the core is opposite to the direction in which the positive nickel sheet is led out, forming opposite current directions to cancel out the magnetic field generated during the battery discharge process.

[0011] As a preferred technical solution, the positive nickel sheet serves as the connection point between the inside and outside circuits of the battery and is led out through a path opposite to the winding direction, ensuring that when current flows through the positive nickel sheet to the external circuit, the magnetic field direction generated by it is opposite to the magnetic field direction formed by the current inside the battery.

[0012] As a preferred technical solution, an insulating adhesive tape is attached to the core corresponding to the position of the positive nickel sheet.

[0013] As a preferred technical solution, the positive nickel sheet and the negative nickel sheet are welded at an angle of 45° ± 1°.

[0014] As a preferred technical solution, the end length of the negative electrode plate is 5 ± 1 mm longer than the end length of the positive electrode plate.

[0015] The beneficial effect of the present utility model is that during the preparation of the steel shell button battery of the present utility model, a design with opposite currents formed by a special winding direction and the direction in which the positive nickel sheet is led out is adopted to reduce the influence of the magnetic field generated during the battery discharge process on the sound quality, especially the increase in the background noise (background noise), and make it play the best effect in practical applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a front structural schematic diagram of the present utility model;

[0018] Figure 2 It is an overall structural schematic diagram of the present utility model;

[0019] Figure 3 It is a bottom structural schematic diagram of the present utility model;

[0020] Explanation of the reference numerals in the drawings:

[0021] 1. Positive nickel sheet; 2. Positive electrode end; 3. Negative electrode plate; 4. Positive electrode plate; 5. Negative electrode end; 6. Core; 7. Negative nickel sheet; 8. Insulating adhesive tape. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] All features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.

[0023] Any feature disclosed in this specification (including any additional claims, abstract, and drawings), unless specifically stated, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically stated, each feature is only an example of a series of equivalent or similar features.

[0024] As Figures 1 - 3 shown, a steel shell button battery PACK structure of the present utility model includes a wound core 6, and the wound core 6 is wound in one direction;

[0025] It further includes a positive electrode tab 4 and a negative electrode tab 3, and the positive electrode tab 4 and the negative electrode tab 3 are evenly arranged on the wound core 6;

[0026] It further includes a positive nickel sheet 1, the circular welding disk surface of the positive nickel sheet 1 is positioned at the position of the positive electrode end 2, and the arc-shaped edge of the positive nickel sheet 1 completely covers the redundant negative electrode end 5; the positive nickel sheet 1 leads from the positive electrode surface of the battery to the negative electrode surface of the battery;

[0027] It further includes a negative nickel sheet 7, which is welded on the negative electrode surface of the wound core 6;

[0028] The winding direction of the wound core and the opposite direction of the lead-out of the positive nickel sheet 1 form opposite current directions to cancel the magnetic field generated during the battery discharge process.

[0029] Among them, the positive nickel sheet 1 serves as the connection point between the inside and outside circuits of the battery and is led out through a path opposite to the winding direction, ensuring that when current flows through the positive nickel sheet 1 to the outside circuit, the magnetic field direction generated by it is opposite to the magnetic field direction formed by the current inside the battery.

[0030] Among them, in order to avoid short circuit, an insulating adhesive tape 8 needs to be pasted at the position of the positive nickel sheet 1, and then the negative nickel sheet 7 is welded.

[0031] The positive nickel sheet 1 and the negative nickel sheet 7 are welded at an angle of 45° ± 1° to achieve the best effect.

[0032] Among them, the end length of the negative electrode tab 3 is 5 ± 1 mm longer than the end length of the positive electrode tab 4.

[0033] The present utility model provides a steel shell button battery. Through the design of opposite currents formed by a special winding direction and the opposite direction of the lead-out of the positive nickel sheet 1, the influence of the magnetic field generated during the battery discharge process on the sound quality, especially the increase in the background noise (bottom noise), is reduced, so that it can achieve the best effect in practical applications.

[0034] First, the core is wound in the counterclockwise direction to ensure that when the battery discharges, the direction of the internal current flow can form a specific magnetic field distribution, which is opposite to the magnetic field direction generated when the earphone works, thus achieving magnetic field cancellation to a certain extent.

[0035] Secondly, the positive nickel sheet 1, as the connection point between the inside and outside circuits of the battery, is led out along a path opposite to the winding direction. This ensures that when the current flows through the positive nickel sheet 1 to the outside circuit, the magnetic field direction generated by it is opposite to the magnetic field direction formed by the internal current of the battery. This opposite current direction not only helps to cancel the magnetic field generated during battery discharge, but also further reduces the influence of the magnetic field on the earphone sound quality.

[0036] In addition, by pasting insulating tape on the battery to isolate the magnetic field generated by the battery, the interference of the battery pack to the surrounding environment is further reduced, thus achieving a noise reduction effect. This PACK method of insulating tape effectively reduces the increase of background noise and improves the sound quality performance of the earphone.

[0037] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be thought of without creative work should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. A steel shell button-type battery PACK structure, characterized in that, Comprising: A core (6) that is wound in one direction; A positive electrode tab (4) and a negative electrode tab (3), which are evenly arranged on the core (6); A positive nickel sheet (1), the circular welding surface of the positive nickel sheet (1) is positioned at the position of the positive electrode end (2), and the excess negative electrode end (5) is completely covered by the arc-shaped edge of the positive nickel sheet (1); the positive nickel sheet (1) leads from the positive electrode surface of the battery to the negative electrode surface of the battery; A negative nickel sheet (7), which is welded on the negative electrode surface of the core (6); The winding direction of the core and the opposite direction of the lead-out of the positive nickel sheet (1) form opposite current directions to cancel out the magnetic field generated during the battery discharge process.

2. The steel shell button cell PACK structure according to claim 1, wherein: The positive nickel sheet (1) serves as the connection point between the inside and the outside circuit of the battery and is led out through a path opposite to the winding direction, ensuring that when the current flows through the positive nickel sheet (1) to the outside circuit, the magnetic field direction generated by it is opposite to the magnetic field direction formed by the current inside the battery.

3. The steel shell button cell PACK structure according to claim 1, wherein: An insulating adhesive tape (8) is pasted on the core corresponding to the position of the positive nickel sheet (1).

4. The steel shell button cell PACK structure according to claim 1, characterized in that: The positive nickel sheet (1) and the negative nickel sheet (7) are welded at an angle of 45° ± 1°.

5. The steel shell button cell PACK structure according to claim 1, characterized in that: The end length of the negative electrode tab (3) is 5 ± 1 mm longer than the end length of the positive electrode tab (4).

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