Button cell and electric equipment

Abstract

The utility model discloses a button cell and electric equipment, the button cell includes: a cell body including a housing, a battery cell and an upper cover assembly, the battery cell is located in the housing, the housing is provided with an opening part, and the upper cover assembly is connected with and seals the opening part; the first magnetizer comprises a protruding part and an attaching part connected to the protruding part, the attaching part is connected with the upper cover assembly in an attached mode, the protruding part protrudes out of the attaching part, and the protruding part is arranged to be far away from the upper cover assembly relative to the attaching part. According to the button cell, the magnetic field with the stable direction can be generated through the first magnetizer to offset an unstable magnetic field generated by the change of the magnetic field of the cell, so that the accuracy of a bottom noise test is ensured, materials do not need to be newly added, and the cost is relatively low.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field more specifically, relate to a button cell, furthermore, the utility model still relates to a kind of electric equipment comprising above-mentioned button cell. BACKGROUND

[0002] Button cell includes shell, electric core and shell cover, the positive pole ear of electric core is welded the positive pole part of shell cover, negative pole ear is welded on shell, and the negative pole part of shell cover is welded with shell. When button cell is packed, it needs to be welded with shell by means of adapter plate, to connect battery with external circuit.

[0003] Button cell is applied to earphone specifically, needs to carry out bottom noise test to evaluate the tone quality of earphone, and bottom noise test mainly focuses on the result of earphone in discharge state, but due to the magnetic field generated during discharge of battery itself, the accuracy of bottom noise test is influenced.

[0004] In the related art, a shielding layer is added to the battery to reduce the influence of the magnetic field generated by the battery itself on the bottom noise test. This method requires additional materials and installation, increasing the cost.

[0005] In summary, how to provide a cost-effective way to shield or weaken the magnetic field of the battery is a problem that needs to be solved by technicians in this field. UTILITY MODEL CONTENT

[0006] Therefore, the utility model aims to provide a button cell that can generate a magnetic field with a stable direction through a first magnetic conductor to offset the unstable magnetic field generated by the change in the battery's own magnetic field, ensuring the accuracy of the bottom noise test without the need for additional materials, thus reducing the cost. Another object of the utility model is to provide an electric device comprising the above-mentioned button cell.

[0007] To achieve the above-mentioned object, the utility model provides the following technical solutions:

[0008] A button cell comprises:

[0009] The battery body comprises a shell, an electric core, and an upper cover assembly. The electric core is located inside the shell, the shell is provided with an opening portion, and the upper cover assembly connects and seals the opening portion.

[0010] The first magnetic conductor comprises a protruding portion and a bonding portion connected to the protruding portion. The bonding portion is connected to the upper cover assembly, the protruding portion protrudes from the bonding portion, and the protruding portion is arranged away from the upper cover assembly relative to the bonding portion.

[0011] Preferably, the protruding part comprises a circular arc region and a straight line region connected to the circular arc region, an end of the straight line region away from the circular arc region is a transition region, and two ends of the transition region intersect with edges of the abutting part.

[0012] Preferably, a pin is connected to the transition region, and a gap is formed between the pin and the shell.

[0013] Preferably, the pin comprises a connecting end connected to the transition region and a leading end bent relative to the connecting end, and the gap is formed between the leading end and an outer periphery of the shell and between the connecting end and a top of the shell.

[0014] Preferably, the battery cell comprises a positive electrode tab, the upper cover assembly comprises an upper cover, the upper cover is connected to the positive electrode tab, and the abutting part is connected to the upper cover.

[0015] Preferably, an included angle between an extension direction of the positive electrode tab and a leading direction of the connecting end relative to the transition region is α, and 0°≤α≤30° or 150°≤α≤180°.

[0016] Preferably, a center of the circular arc region, a center of the abutting part, and a center of the upper cover are located on a same straight line.

[0017] The straight line region extends away from a center of the circular arc region.

[0018] Preferably, an area of the protruding part is S1, an area of the abutting part is S2, and an area of the upper cover is S3, and S1+S2≥0.5S3.

[0019] Preferably, an area of the protruding part is S1, an area of the abutting part is S2, and 0.1≤S1 / (S1+S2) ≤0.8.

[0020] Preferably, the abutting part is provided with a welding region connected to the upper cover, the welding region is provided with a welding line, and a width of the welding line is greater than or equal to 0.01 mm.

[0021] Preferably, projections of the circular arc region and the straight line region on the upper cover and a projection of the positive electrode tab on the upper cover have an overlapping region.

[0022] When α=180°, a ratio of an area of the overlapping region to an area of the positive electrode tab is 0.5-1.

[0023] When α=0°, a ratio of an area of the overlapping region to an area of the positive electrode tab is less than 0.5.

[0024] Preferably, the upper cover assembly further comprises a lower cover, the lower cover and the upper cover are connected through an insulating piece, and an area of the lower cover is S4, S1+S2≤S4.

[0025] Preferably, an insulating sheet is arranged in the gap between the shell and the pin.

[0026] Preferably, the insulating sheet comprises:

[0027] An adhesive part is connected to the outer periphery of the shell.

[0028] An ear part is connected to the adhesive part, and the ear part is arranged in a mounting positioning groove formed by the protruding part.

[0029] The utility model also provides a kind of electric equipment, including the button cell of any one of the above.

[0030] The utility model provides a button cell, including battery body, first magnetism conductor, wherein battery body includes shell, electric core and upper cover assembly, electric core is arranged in shell, shell is provided with opening part, upper cover assembly is connected and sealed opening part, to seal electric core in shell;First magnetism conductor includes protruding part, and the lamination part connected to protruding part, lamination part is connected to upper cover assembly, protruding part protrudes from lamination part and is arranged away from upper cover assembly relative to lamination part, that is, protruding part does not contact with upper cover assembly, upper cover assembly is transmitted to lamination part after electric current of electric core is led out, further is transmitted to protruding part through lamination part, protruding part can lead out the electric current of first magnetism conductor from lamination part to external device, by the guiding effect of protruding part, the electric current in first magnetism conductor has specific flow direction, to generate relatively stable magnetic field, this magnetic field can offset the unstable magnetic field generated due to battery self magnetic field change, to make battery magnetic field in stable state, reduce noise generation, reduce the influence to earphone bottom noise test.

[0031] The utility model has the advantages that: by setting the first magnetism conductor with magnetic shielding effect, specifically by setting the protruding part with flow guiding effect on the first magnetism conductor, the first magnetism conductor can generate a relatively stable magnetic field in a certain direction, to offset the unstable magnetic field of the battery itself, to effectively reduce the influence of the unstable magnetic field of the battery itself on the earphone bottom noise test, and ensure the accuracy of the test. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creating labor.

[0033] Figure 1A structure schematic view of the button cell provided by the utility model;

[0034] Figure 2 A Figure 1 exploded view;

[0035] Figure 3 A structure schematic view of the insulating sheet provided by the utility model;

[0036] Figure 4 A structure schematic view of the first magnetic conductor provided by the utility model;

[0037] Figure 5 A Figure 4 lower view;

[0038] Figure 6 A Figure 4 plan view;

[0039] Figure 7 A Figure 6 A-A sectional view;

[0040] Figure 8 A schematic view when alpha = 0°;

[0041] Figure 9 A schematic view when alpha = 180°;

[0042] Figure 10 A magnetic field schematic view formed when the battery is in a discharging state;

[0043] Figure 11 A magnetic field schematic view generated by the first magnetic conductor when the battery magnetic field is enhanced and weakened.

[0044] Figures 1-11 In the drawings, reference signs include:

[0045] 01 - upper cover assembly;

[0046] 1 - first magnetic conductor; 2 - second magnetic conductor; 3 - battery body; 4 - insulating sheet; 5 - positive electrode lug; 11 - protruding part; 12 - fitting part; 13 - pin; 31 - sealing sheet; 32 - upper cover; 33 - insulating piece; 34 - lower cover; 35 - shell; 41 - bonding part; 42 - lug; 111 - circular arc area; 112 - straight line area; 113 - transition area; 114 - mounting positioning groove; 121 - welding area; 131 - connecting end; 132 - leading end. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0048] The core of the utility model provides a button cell, the first magnetism guide body is provided with the convex part with the flow guiding effect, without auxiliary components, the unstable magnetic field of the battery itself is offset at low cost, and the influence on the bottom noise test of the earphone is reduced. Another core of the utility model provides a power consumption equipment comprising the button cell.

[0049] The button cell provided by the utility model comprises a battery body 3, the battery body 3 specifically comprises a shell 35, an electric core and an upper cover assembly 01, wherein the electric core is arranged in the shell 35, an opening part is arranged on the shell 35, and the upper cover assembly 01 is connected with the opening part and is specifically sealed and welded with the opening part so as to seal the battery in the shell 35.

[0050] Please refer to Figure 4 The first magnetism guide body 1 comprises a convex part 11 and a bonding part 12 connected with the convex part 11, the bonding part 12 is connected with the upper cover assembly 01, the convex part 11 is arranged away from the upper cover assembly 01 relative to the bonding part 12, the current in the first magnetism guide body 1 has a specific flow direction through the flow guiding effect of the convex part 11, thereby generating a relatively stable direction magnetic field, the unstable magnetic field generated by the change of the magnetic field of the battery is offset through the magnetic field, the magnetic field of the battery is collected, the magnetic field of the battery is in a stable state, the influence of the unstable magnetic field of the battery on the bottom noise test of the earphone is avoided, and the reliability of the test is ensured.

[0051] The convex part 11 is arranged to protrude from the bonding part 12, and the convex part 11 is arranged away from the upper cover assembly 01 relative to the bonding part 12, that is, there is a space between the convex part 11 and the upper cover assembly 01, the contact area of the first magnetism guide body 1 and the upper cover assembly 01 can be reduced, the convex part 11 can play a guiding role in this arrangement mode, the current flow direction in the first magnetism guide body 1 is guided to an external device in a relatively determined direction, the current flow direction in the first magnetism guide body 1 is limited, the first magnetism guide body 1 can generate a relatively stable magnetic field, the unstable magnetic field generated by the change of the magnetic field of the battery is offset by using the magnetic field, and the influence of the unstable magnetic field of the battery on the bottom noise test is reduced. Figure 4The protruding part 11 and the fitting part 12 are integrally formed, specifically by stamping, and after stamping, the protruding part 11 protrudes relative to the fitting part 12, so as to ensure that the protruding part 11 does not contact the upper cover assembly 01. Through the improved mode of the first magnetic conductor 1, the processing and manufacturing are simple, and the screen magnetic effect can be achieved without other auxiliary components, thereby reducing the material cost and design cost.

[0052] In the embodiment, when the actual earphone is tested for the bottom noise, please refer to Figure 10 The battery generates a magnetic field in the discharging state, and the arrow represents the magnetic induction line. The direction of the arrow is the direction of the generated magnetic field. Since the current flows along the winding core of the battery body 3 inside the battery body 3, the magnetic fields generated by the overlapping positive and negative plates will cancel each other out. However, the winding core will eventually have an extra section of positive or negative outer package. Affected by the outer package, the overall magnetic field of the battery body 3 is directed from the axis of one end of the battery body 3, spreads outward, and finally points to the axis of the other end of the battery body 3, as shown by the dashed arrow. Figure 1

[0053] When the earphone is working, it usually outputs current in a specific waveform. When the battery output changes according to the waveform, the corresponding battery magnetic field will also change, thereby forming an unstable magnetic field due to the change. The first magnetic conductor 1 is arranged on the side of the battery close to the loudspeaker. The first magnetic conductor 1 is in the magnetic field generated by the battery and is affected by the electromagnetic effect to generate a current. Due to the arrangement of the protruding part 11, the current can have a specific flow direction, so that the first magnetic conductor 1 can generate a magnetic field with a relatively stable direction. The magnetic field generated by the first magnetic conductor 1 can concentrate the changing magnetic field of the battery body 3, so that the magnetic field of the battery body 3 is in a stable state. Regarding the concentrating effect, the first magnetic conductor 1 will be magnetized in the magnetic field and concentrate the magnetic field, so it can have a concentrating effect on the magnetic field, similar to "absorbing" the magnetic field. At the same time, the first magnetic conductor 1 and the magnetic field it "absorbs" will interact with each other, including magnetic hysteresis loss, eddy current loss, or other losses, etc., so as to reduce the magnetic field strength and thereby weaken the surrounding interference magnetic field.

[0054] When the earphone is working normally, the first magnetic conductor 1 senses the change of the magnetic field of the battery body 3 and generates a current due to the electromagnetic effect, thereby generating an eddy current, a vortex effect, and a magnetic field opposite to the direction of the change of the magnetic field of the battery body 3, so as to offset the unstable magnetic field generated by the battery body 3 itself, thereby making the magnetic field of the battery body 3 more stable. There are two specific situations. When the magnetic field of the battery body 3 is enhanced, the first magnetic conductor 1 in the magnetic field generated by the battery body 3 will generate an induced magnetic field opposite to the enhancement direction of the magnetic field of the battery body 3 under the action of the eddy current effect, so as to weaken the magnetic field of the battery body 3 through the induced magnetic field, as shown in Figure 11 ​The left side of the figure shows that when the magnetic field of the battery body 3 is weakened, the first magnetic conductor 1 is in the magnetic field generated by the battery body 3 and generates an induced magnetic field in the opposite direction of the weakening direction of the magnetic field of the battery body 3 under the action of the eddy current effect, as shown in the right side of the figure. Figure 11 The left side of the figure shows that when the magnetic field of the battery body 3 is weakened, the first magnetic conductor 1 is in the magnetic field generated by the battery body 3 and generates an induced magnetic field in the opposite direction of the weakening direction of the magnetic field of the battery body 3 under the action of the eddy current effect, as shown in the right side of the figure. Figure 11 The left side of the figure shows that when the magnetic field of the battery body 3 is weakened, the first magnetic conductor 1 is in the magnetic field generated by the battery body 3 and generates an induced magnetic field in the opposite direction of the weakening direction of the magnetic field of the battery body 3 under the action of the eddy current effect, as shown in the right side of the figure. Figure 11 The left side of the figure shows that when the magnetic field of the battery body 3 is weakened, the first magnetic conductor 1 is in the magnetic field generated by the battery body 3 and generates an induced magnetic field in the opposite direction of the weakening direction of the magnetic field of the battery body 3 under the action of the eddy current effect, as shown in the right side of the figure. Figure 11 The left side of the figure shows that when the magnetic field of the battery body 3 is weakened, the first magnetic conductor 1 is in the magnetic field generated by the battery body 3 and generates an induced magnetic field in the opposite direction of the weakening direction of the magnetic field of the battery body 3 under the action of the eddy current effect, as shown in the right side of the figure.

[0055] In the embodiment, the first magnetic conductor 1 is arranged on the upper cover assembly 01, and the second magnetic conductor 2 is further arranged at a position opposite to the opening portion of the shell 35. One of the first magnetic conductor 1 and the second magnetic conductor 2 corresponds to the positive electrode of the battery body 3, and the other corresponds to the negative electrode of the battery body 3.

[0056] On the basis of the above embodiment, please refer to Figure 2 The protruding portion 11 comprises a circular arc region 111 and a straight line region 112 connected to the circular arc region 111.

[0057] Please refer to Figure 2 The first magnetic conductor 1 is arranged in the form of a circular sheet, which is convenient for processing and is conducive to forming an induced magnetic field along the axis of the first magnetic conductor 1, so as to realize the effect of stabilizing the magnetic field generated by the battery body 3.

[0058] The straight line region 112 extends away from the center of the circular arc region 111 until the outer edge of the first magnetic conductor 1, please refer to Figure 4 .

[0059] The circular arc region 111 and the straight line region 112 form a shape similar to a racetrack. The straight line region 112 guides the flow direction of the current in the first magnetic conductor 1. By limiting the specific flow direction of the current in the first magnetic conductor 1, the first magnetic conductor 1 generates a magnetic field with a stable direction. The stable magnetic field offsets the unstable magnetic field generated by the change of the magnetic field of the battery itself, so as to reduce the influence of the unstable magnetic field of the battery on the bottom noise test of the earphone.

[0060] Please refer to Figure 4 The end of the straight line region 112 away from the circular arc region 111 is a transition region 113, and the two ends of the transition region 113 intersect with the edges of the abutting portion 12. The transition region 113 is also a part protruding from the abutting portion 12 and is specifically used for connecting external devices for leading out the current of the battery.

[0061] On the basis of any of the above embodiments, the transition zone 113 is connected with a pin 13, and a gap is provided between the pin 13 and the shell 35.

[0062] The pin 13 is used to guide the current flow in the first magnetic conductor 1, and the current is guided out of the first magnetic conductor 1 to an external device. By guiding the current flow in the first magnetic conductor 1, the current interference is reduced, and the magnetic shielding effect of the first magnetic conductor 1 is more obvious.

[0063] The pin 13 is a part directly machined from the first magnetic conductor 1, and the pin 13, the protruding part 11, and the abutting part 12 are integrally formed. The pin 13 can be bent according to the actual position relationship with the battery and the installation requirements. If a part for connecting with an external device is needed, the part can be set as a horizontal connection part for easy connection.

[0064] In addition, a gap is provided between the pin 13 and the outer periphery of the battery. The gap can form a spare space of the battery itself, and the space utilization can be improved by using the spare space.

[0065] For example, the gap is set based on the insulation requirement. The polarity of the pin 13 is positive, and the polarity of the shell 35 is negative. An insulating sheet is arranged in the gap to ensure the insulation between the pin 13 and the shell 35, and to ensure the reliability and safety of the pin 13 for guiding the current of the battery.

[0066] On the basis of any of the above embodiments, the pin 13 includes a connection end 131 connected with the transition zone 113 and a leading end 132 bent relative to the connection end 131. The leading end 132 and the top of the connection end 131 have gaps with the outer periphery of the shell 35.

[0067] Please refer to Figure 4 , Figure 6 , Figure 7 The connection end 131 of the pin 13 is connected with the transition zone 113 and is horizontally arranged. The leading end 132 is bent relative to the connection end 131, and the leading end 132 does not contact the outer periphery and the top of the shell 35, so as to avoid short circuit and ensure the reliability and safety of the battery.

[0068] On the basis of any of the above embodiments, please refer to Figure 2 , Figure 4 The battery cell includes a positive electrode tab 5, the upper cover assembly 01 includes an upper cover 32, the upper cover 32 is connected with the positive electrode tab 5, and the abutting part 12 is connected with the upper cover 32.

[0069] In the embodiment, the upper cover 32 is connected with the positive pole lug 5, and the polarity of the upper cover 32 is positive. The current of the positive pole lug 5 is led out to the adhering part 12 through the upper cover 32. When the current is led from the adhering part 12 to the protruding part 11, the current in the first magnetic conductor 1 has a specific flow direction under the guidance of the protruding part 11, so that the first magnetic conductor 1 can generate a relatively stable magnetic field. The magnetic field can offset the unstable magnetic field generated by the change of the magnetic field of the battery, so that the magnetic field of the battery remains in a relatively stable state, reduces the generation of noise, and avoids affecting the bottom noise test of the earphone.

[0070] Please refer to Figure 4 , Figure 5 , the protruding part 11 is protrudingly arranged to form a mounting positioning groove 114. The mounting positioning groove 114 is a groove formed at the same time when the protruding part 11 is punched. The groove can provide a positioning and mounting reference for the assembly of the battery. When the battery is assembled into the battery compartment, the mounting positioning groove 114 can provide a mounting guide function, realize the effect of blind insertion and rapid positioning, and improve the assembly efficiency and positioning reliability.

[0071] In addition, due to the existence of the mounting positioning groove 114, other components such as insulating pads can be installed in the groove space, so as to fully utilize the space of the battery and improve the energy density of the battery.

[0072] In the above embodiment, the shape of the protruding part 11 is not limited, and can be arranged as concentric circles, eccentric circles, concentric squares, or eccentric squares. Here, the "concentric" and "eccentric" are based on the center of the first magnetic conductor 1.

[0073] In addition, the protruding part 11 can also be arranged as a heart shape, an S shape, a straight strip shape, a racetrack shape, or a mouth shape, which can be flexibly arranged.

[0074] In any of the above embodiments, the included angle between the extension direction of the positive pole lug 5 and the leading direction of the connecting end 131 of the pin 13 relative to the transition area 113 is α, and 0°≤α≤30°, or 150°≤α≤180°.

[0075] Please refer to Figure 8 , Figure 9 , Figure 4 The positive pole lug 5 is connected with the positive pole tab, and extends from the outer periphery of the battery body 3 to the center direction. The current directions of the pin 13 and the positive pole lug 5 are consistent, which reduces the interference of the chaotic magnetic field caused by the inconsistent current flow, and ensures the accuracy of the bottom noise test.

[0076] As shown in Figure 8 and Figure 9 , Figure 8 and Figure 9In the solid line with an arrow, the direction of the arrow is the extension direction of the positive lug 5; in the dashed line with an arrow, the direction of the arrow is the lead-out direction of the connecting end 131 relative to the transition area 113. The included angle between the dashed line with an arrow and the solid line with an arrow is α.

[0077] Generally, α is set to 0° or 180°, and considering other errors or specific processing complexities, α is set to have a certain fluctuation range. For example, Figure 8 0°≤α≤30°, Figure 8 the slightly thinner line with a double-headed arrow in corresponds to α=0° or 30°. For example, Figure 9 150°≤α≤180°, Figure 9 the slightly thinner line with a double-headed arrow in corresponds to α=150° or 180°.

[0078] By limiting the included angle between the extension direction of the positive lug 5 and the lead-out direction of the connecting end 131 relative to the transition area 113, the consistency of the current direction of the pin 13 and the current direction of the positive lug 5 is ensured, the chaotic magnetic field interference caused by inconsistent current flow is reduced, and the accuracy of the noise test is ensured.

[0079] On the basis of any of the above embodiments, the center of the circular arc area 111, the center of the fitting part 12, and the center of the upper cover 32 are located on the same straight line; the straight line area 112 extends away from the center of the circular arc area 111.

[0080] Please refer to Figure 2 , the first magnetic conductor 1 is set to a circular sheet, which is convenient for processing and is conducive to the first magnetic conductor 1 forming a stable induction magnetic field along the axial direction, so as to realize the effect of stabilizing the unstable magnetic field generated by the stable change of the battery body 3 magnetic field.

[0081] The circular arc area 111 is connected with the straight line area 112, the straight line area 112 extends away from the center of the circular arc area 111, and extends to the outer edge of the first magnetic conductor 1 as a whole, please refer to Figure 4 .

[0082] The circular arc area 111 and the straight line area 112 form a shape similar to a racetrack, the straight line area 112 guides the direction of the current inside the first magnetic conductor 1, reduces the contact area between the first magnetic conductor 1 and the upper cover assembly 01, and thus better guides the current inside the first magnetic conductor 1, so that the current inside the first magnetic conductor 1 has a stable direction, reduces current interference, and ensures the magnetic shielding effect of the first magnetic conductor 1.

[0083] On the basis of any of the above embodiments, please refer to Figure 2 , the area of the convex part 11 is S1, the area of the fitting part 12 is S2, and the area of the upper cover 32 is S3.

[0084] S1+S2≥0.5S3, on the basis of ensuring reliable welding of the fitting portion 12 of the first magnetic conductor 1, ensuring the magnetic shielding effect of the first magnetic conductor 1, ensuring that the first magnetic conductor 1 can effectively shield the unstable magnetic field generated by the battery when the first magnetic conductor 1 faces the earphone speaker, and ensuring the accuracy of the earphone noise floor test.

[0085] On the basis of any of the above embodiments, the ratio of the area S1 of the protruding portion 11 to the area of the first magnetic conductor 1 is 10% to 80%, and the area of the first magnetic conductor 1 here can be considered as the sum of the areas of the protruding portion 11 and the fitting portion 12, i.e. 0.1%≤S1 / (S1+S2)≤0.8.

[0086] By limiting the size of the area of the protruding portion 11, the effect of the protruding portion 11 on the direction of the current and the effect of the first magnetic conductor 1 on shielding the magnetic field of the battery itself are ensured, the first magnetic conductor 1 is effectively shielded from the unstable magnetic field generated by the battery when used as a magnetic shielding sheet, noise generation is reduced, and the impact on the earphone noise floor test is reduced.

[0087] On the basis of any of the above embodiments, the fitting portion 12 is provided with a welding area 121 connected to the upper cover 32, and the welding area 121 is provided with a welding line, and the width of the welding line is greater than or equal to 0.01 mm.

[0088] Please refer to Figure 8 , Figure 9 , the fitting portion 12 and the upper cover 32 are fixed by welding, the welding area 121 is arranged on the fitting portion 12, and the specific arrangement and distribution can be determined according to actual needs and are not limited.

[0089] As shown in Figure 8 , the welding area 121 is arranged uniformly on the fitting portion 12, and each welding area 121 is provided with a welding line, and the width of the welding line is at least greater than 0.01 mm, so as to ensure the welding strength and overcurrent effect of the fitting portion 12 and the upper cover 32.

[0090] On the basis of any of the above embodiments, the projection of the circular arc area 111 and the straight line area 112 onto the upper cover 32 and the projection of the positive electrode lug 5 relative to the upper cover 32 have an overlapping area.

[0091] When α=180°, as shown in Figure 9 , the ratio of the area of the overlapping area to the area of the positive electrode lug 5 is 0.5 to 1; when α=0°, as shown in Figure 8 , the ratio of the area of the overlapping area to the area of the positive electrode lug 5 is less than 0.5. By limiting the ratio of the area of the overlapping area to the area of the positive electrode lug 5, the direction of the current of the positive electrode lug 5 is ensured to be consistent with the direction of the pin 13, and the impact of the chaotic unstable magnetic field generated by the battery on the noise floor test is avoided.

[0092] Take the area ratio of the overlapping area to the area of the positive tab 5 as an example, that is, the projection of the positive tab 5 relative to the upper cover 32 completely covers the projections of the circular arc area 111 and the straight line area 112 to the upper cover 32.

[0093] On the basis of any of the above embodiments, the upper cover assembly 01 further comprises a lower cover 34, the lower cover 34 and the upper cover 32 are connected through an insulating piece 33, the area of the protruding part 11 is S1, the area of the fitting part 12 is S2, the area of the lower cover 34 is S4, S1+S2≤S4.

[0094] In combination with the above embodiment, 0.5S3≤S1+S2≤S4, the first magnetic conductor 1 meets the use requirements, in order to avoid occupying the space of the electrical equipment, the outer edges of the protruding part 11 and the fitting part 12 of the first magnetic conductor 1 do not exceed the edges of the upper cover 32, nor do they exceed the edges of the lower cover 34. By limiting the size of the first magnetic conductor 1, the overall circumferential size of the button cell is not additionally increased, reducing space occupation. The above electrical equipment is, for example, a headset.

[0095] On the basis of any of the above embodiments, please refer to Figure 1 , Figure 2 The gap formed between the shell 35 and the pin 13 is an insulating gap, and the insulating piece 4 is arranged in the insulating gap.

[0096] By arranging the insulating piece 4 in the insulating gap, the first magnetic conductor 1 and the shell 35, the upper cover 32 are kept insulated, ensuring that the first magnetic conductor 1 will not short circuit, ensuring the safety of the operation.

[0097] On the basis of any of the above embodiments, please refer to Figure 3 The insulating piece 4 comprises: an adhesive part 41 connected to the outer periphery of the shell 35; and an ear part 42 connected to the adhesive part 41, the ear part 42 being arranged in the mounting and positioning groove 114 formed by the protruding part 11.

[0098] Please refer to Figure 3 , Figure 2 The insulating piece 4 comprises the adhesive part 41 and the ear part 42, wherein the adhesive part 41 is directly adhered to the outer periphery of the shell 35 to prevent the first magnetic conductor 1 from contacting the shell 35 or the upper cover 32 and causing a short circuit. If the outer diameter of the first magnetic conductor 1 is large and close to the size of the lower cover 34, and the outer diameter of the lower cover 34 and the outer diameter of the first magnetic conductor 1 have a small difference in the radial direction, the insulation of the first magnetic conductor 1 can be achieved through the adhesive part 41.

[0099] If the first magnetic conductor 1 has a small outer diameter and is coaxially arranged with the lower cover 34, the outer diameter of the lower cover 34 and the outer diameter of the first magnetic conductor 1 have a large radial difference, and the ear portion 42 and the bonding portion 41 need to work together to be insulated. The ear portion 42 is bent relative to the bonding portion 41, and the bending direction tends to the end surface of the upper cover 32. The ear portion 42 is arranged in the mounting positioning groove 114, and the mounting positioning groove 114 is formed at the same time when the protruding portion 11 of the first magnetic conductor 1 is punched, and the space is fully utilized, so that the capacity of the battery is improved and the risk of short circuit is reduced without affecting the overall thickness of the button cell.

[0100] The battery body 3 includes an upper cover 32, a lower cover 34, an insulating piece 33, a shell 35, and further includes a sealing piece 31 and a winding core. In assembly, the upper cover 32, the insulating piece 33 and the lower cover 34 are combined into a battery top cover by heat compounding, and then the battery top cover is welded with the shell 35 after the winding core is put into the shell 35; after baking and liquid injection, the sealing piece 31 is welded to seal the battery, and after sealing, formation and sorting are performed, that is, the battery is completed.

[0101] After the battery is completed, there is usually an additional need for battery PACK. The PACK part usually includes a first magnetic conductor 1, a second magnetic conductor 2 and at least one insulating sheet 4. The first magnetic conductor 1 and the second magnetic conductor 2 can respectively lead out the positive and negative polarity of the battery body 3, so that the battery body 3 can lead out the positive and negative polarity of the upper battery compartment when installed. When the polarity of the battery is led out from the side, the first magnetic conductor 1 and the side wall of the shell 35 need to be insulated by the insulating sheet 4. When PACK is performed, the insulating sheet 4 needs to be attached to the specified position, and then the first magnetic conductor 1 and the second magnetic conductor 2 are welded and fixed according to the required polarity leading-out position. The attachment portion 12 of the first magnetic conductor 1 is welded with the upper cover 32, and the second magnetic conductor 2 is welded with the shell 35.

[0102] In addition to the above-mentioned button cell, the utility model also provides a power consumption equipment including the button cell described in any of the above-mentioned embodiments, and the power consumption equipment is specifically any device that needs to use a button cell, such as a headset.

[0103] In the specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0104] The above has carried out the detailed introduction to the button cell and the electric equipment provided by the utility model. The principle and implementation mode of the utility model are described by applying specific examples in this paper, and the above embodiment is only used for helping to understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled person in the art, without departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. A coin cell battery characterized by, The battery body (3) comprises a shell (35), an electrode core, and an upper cover assembly (01), the electrode core is located in the shell (35), the shell (35) is provided with an opening part, and the upper cover assembly (01) is connected and sealed with the opening part. The first magnetic conductor (1) comprises a protruding part (11) and a fitting part (12) connected to the protruding part (11), the fitting part (12) is connected to the upper cover assembly (01), the protruding part (11) protrudes from the fitting part (12), and the protruding part (11) is arranged away from the upper cover assembly (01) relative to the fitting part (12). The protruding part (11) comprises a circular arc area (111) and a straight line area (112) connected to the circular arc area (111), an end of the straight line area (112) away from the circular arc area (111) is a transition area (113), and two ends of the transition area (113) intersect with edges of the fitting part (12).

2. The button cell of claim 1, wherein, The transition area (113) is connected with a pin (13), and a gap is formed between the pin (13) and the shell (35).

3. The button cell of claim 2, wherein, The pin (13) comprises a connecting end (131) connected to the transition area (113) and a leading end (132) bent relative to the connecting end (131), the gap is formed between the leading end (132) and the outer periphery of the shell (35) and between the connecting end (131) and the top of the shell (35).

4. The button cell of claim 3, wherein, The electrode core comprises a positive electrode tab (5), the upper cover assembly (01) comprises an upper cover (32), the upper cover (32) is connected to the positive electrode tab (5), and the fitting part (12) is connected to the upper cover (32).

5. The button cell of claim 4, wherein, An included angle between an extension direction of the positive electrode tab (5) and a leading direction of the connecting end (131) relative to the transition area (113) is α, and 0°≤α≤30° or 150°≤α≤180°.

6. The button cell of claim 5, wherein, Centers of the circular arc area (111), the fitting part (12), and the upper cover (32) are located on the same straight line.

7. The button cell battery of claim 5, wherein, The straight line area (112) extends away from the center of the circular arc area (111).

8. The button cell of claim 7, wherein An area of the protruding part (11) is S1, an area of the fitting part (12) is S2, and an area of the upper cover (32) is S3, and S1+S2≥0.5S3. An area of the protruding part (11) is S1, an area of the fitting part (12) is S2, and 0.1≤S1 / (S1+S2)≤0.

8.

9. The button cell battery of claim 7, wherein, The fitting part (12) is provided with a welding area (121) connected to the upper cover (32), the welding area (121) is provided with a welding line, and a width of the welding line is greater than or equal to 0.01 mm.

10. The button cell of claim 8 or 9, wherein, Projections of the circular arc area (111) and the straight line area (112) on the upper cover (32) and a projection of the positive electrode tab (5) on the upper cover (32) have an overlapping area.

11. The button cell battery of claim 6, wherein, When α=180°, a ratio of an area of the overlapping area to an area of the positive electrode tab (5) is 0.5-1. ​ When α=0°, the area ratio of the overlapping area to the area of the positive tab (5) is less than 0.

5.

12. The button cell battery of claim 8, wherein, The upper cover assembly further comprises a lower cover (34) connected with the upper cover (32) through an insulating piece (33), and the area of the lower cover (34) is S4, S1+S2≤S4.

13. The button cell battery of claim 3, wherein, An insulating sheet (4) is arranged in the gap between the shell (35) and the pin (13).

14. The button cell of claim 13, wherein, The insulating sheet (4) comprises: an adhesive part (41) connecting the outer periphery of the shell (35); an ear part (42) connected with the adhesive part (41), the ear part (42) being arranged in a mounting positioning groove (114) formed by the protruding part (11).

15. An electrical device, characterized by The button cell comprises the button cell as claimed in any one of claims 1 to 14.

Images