Soft-packed button battery module, sound-emitting device and electronic device

Abstract

A soft-packed button battery module (1000) comprises a soft-packed button battery (100), wherein an arc-shaped conductive sheet (200) and an electrode tab (300) of the conductive sheet are arranged on a surface of the soft-packed button battery (100), the arc-shaped conductive sheet (200) being connected to a first electrode tab (110) of the soft-packed button battery (100) and extending from the first electrode tab (110) to the electrode tab (300) of the conductive sheet, the electrode tab (300) of the conductive sheet being spaced apart from the second electrode tab (120) of the soft-packed button battery (100), the winding lengths of the two electrodes outside the soft-packed button battery (100) being compensated by the arc-shaped conductive sheet (200) and the electrode tab (300) of the conductive sheet.so that the magnetic field generated by the current of the positive electrode and the magnetic field generated by the current of the negative electrode cancel each other out, and the strength of the overall external magnetic field is reduced, and when the soft-packed button battery module (1000) is used for the sound-radiating device (2000), the degree of insulation of the soft-packed button battery module (10000) from the horn (2100) is increased, the interference of the horn (2100) by the soft-packed button battery (1000) is reduced, the background noise is reduced, and the sound radiation effect of the sound-radiating device (2000) can be improved.

Description

Cross-reference to related applications

[0001] This application is based on Chinese Patent Application No. 202210556397.7 filed on May 20, 2022, and claims priority from this Chinese patent application, and the entire contents of this Chinese patent application are hereby incorporated by reference into the present application. Technical area

[0002] The present application belongs to the technical field of button batteries and relates in particular to a soft-packed button battery, a sound-radiating device and an electronic device. Technical background

[0003] Electronic devices are made wireless with the help of Bluetooth modules and button batteries, which is very convenient for users to carry and use electronic products, of which wireless headphones are particularly obvious, and therefore preferred by the majority of users.

[0004] However, the Bluetooth module has a larger transient current when radiating signals, and the magnetic field it generates would directly interfere with the internal coil of a horn, and in some electronic products, the battery volume is increased for a longer range, so that the battery comes closer to the horn, which leads to more serious interference, thus increasing the background noise and decreasing the sound effect of the sound radiating device. Content of the invention

[0005] This application provides the following technical solution: The present application provides a soft-packed button battery module comprising: a soft-packed button battery, the soft-packed button battery having a first electrode tab and a second electrode tab disposed opposite each other; an arcuate conductive sheet, the arcuate conductive sheet being connected to the first electrode tab, the arcuate conductive sheet extending toward the second electrode tab; and an electrode tab of the conductive sheet, the electrode tab of the conductive sheet being spaced apart from the second electrode tab, the arcuate conductive sheet extending from the first electrode tab along the surface of the soft-packed button battery to the electrode tab of the conductive sheet and being connected thereto.

[0006] The present application also provides a sound radiating device comprising: a horn and a soft-packed button battery module as described above, wherein the horn is connected to the soft-packed button battery module via the positive terminal lead and the negative terminal lead of the soft-packed button battery module.

[0007] The present application also provides an electronic device comprising: a device body and a sound radiating device as described above.

[0008] A soft-packed button battery module, a sound radiating device, and an electronic device provided by the present application can achieve at least one of the following advantageous effects: An arcuate conductive sheet and an electrode tab of the conductive sheet are arranged on a surface of the soft-packed button battery. The arcuate conductive sheet is connected to a first electrode tab of the soft-packed button battery and extends from the first electrode tab to the electrode tab of the conductive sheet. The electrode tab of the conductive sheet is spaced from a second electrode tab of the soft-packed button battery. The arcuate conductive sheet and the electrode tab of the conductive sheet compensate for the winding lengths of the two electrodes outside the soft-packed button battery, so that the magnetic field generated by the current of the positive electrode and the magnetic field generated by the current of the negative electrode cancel each other out, and the strength of the total magnetic field is reduced outward.and when the soft-packed button battery module is used for the sound-emitting device, the degree of insulation of the soft-packed button battery module from the horn can be increased, the interference of the soft-packed button battery to the horn can be reduced, the background noise can be reduced, and the sound radiation effect of the sound-emitting device can be improved. Brief description of the attached drawings

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the attached drawings that should be used in describing the embodiments are briefly introduced below, and it is obvious that the attached drawings in the following description illustrate some embodiments of the present application, and a person with average knowledge in the field can obtain other attached drawings according to these drawings without performing any creative work. Fig. 1 shows a schematic diagram of a structure of a soft-packed button battery module provided by some embodiments of the present application; Fig. 2 shows an enlarged view of the area S in Fig. 1; Fig. 3 shows a schematic representation of a connection of a soft-packed button battery module provided by some embodiments of the present application with a positive terminal lead and a negative terminal lead; Fig. 4 shows an exploded view of a structure of a soft-packed button battery module provided by some embodiments of the present application; Fig. 5 shows a schematic diagram of a structure of a sound radiating device provided by some embodiments of the present application; Fig. 6 shows a schematic diagram of a structure of an electronic device provided by some embodiments of the present application; Fig. Figure 7 shows a noise floor test curve of a headphone using a conventional soft-packed button battery; Fig. Figure 8 shows a noise floor test curve of a headphone using a soft-packed button battery module provided by the present application. Detailed embodiments

[0010] The object of the embodiments of the present application is to provide a soft-packed button battery module, a sound radiating device, and an electronic device such that the magnetic field generated by the positive electrode current and the magnetic field generated by the negative electrode current cancel each other out and the strength of the total magnetic field to the outside is reduced, and when the soft-packed button battery module is used for the sound radiating device, the insulation degree of the soft-packed button battery module from the horn can be increased, the interference of the soft-packed button battery to the horn can be reduced, the background noise can be reduced, and the sound radiation effect of the sound radiating device can be improved.

[0011] The embodiments of the present application provide a soft-packed button battery module comprising: a soft-packed button battery, the soft-packed button battery having a first electrode tab and a second electrode tab arranged opposite each other; an arcuate conductive sheet, the arcuate conductive sheet being connected to the first electrode tab and extending toward the second electrode tab; and an electrode tab of the conductive sheet, the electrode tab of the conductive sheet being arranged spaced apart from the second electrode tab,and the arcuate conductive sheet extends from the first electrode tab along the surface of the soft-packed button battery to the electrode tab of the conductive sheet and is connected thereto. In the soft-packed button battery module provided by the present application, an arcuate conductive sheet and an electrode tab of the conductive sheet are arranged on a surface of the soft-packed button battery, the arcuate conductive sheet being connected to a first electrode tab of the soft-packed button battery and extending from the first electrode tab to the electrode tab of the conductive sheet, the electrode tab of the conductive sheet being spaced apart from a second electrode tab of the soft-packed button battery.By using the arcuate conductive sheet and the electrode tab of the conductive sheet, the winding lengths of the two electrodes outside the soft-packed button battery are compensated, so that the magnetic field generated by the positive electrode current and the negative electrode current cancel each other out, and the strength of the overall magnetic field is reduced. When the soft-packed button battery module is used for the sound-emitting device, the insulation degree of the soft-packed button battery module from the horn can be increased, the interference of the soft-packed button battery to the horn can be reduced, the background noise can be reduced, and the sound radiation effect of the sound-emitting device can be improved.

[0012] In order to make the object, the technical solutions and the advantages of some embodiments of the present application clearer, some embodiments of the present application are explained in detail below in conjunction with the attached drawings.

[0013] A schematic diagram of a structure of a soft-packed button battery module 1000 in the present embodiment is shown in Fig. 1 and Fig. 2, comprising: a soft-packed button battery 100, an arcuate conductive sheet 200, and a conductive sheet electrode tab 300, the soft-packed button battery 100 having a first electrode tab 110 and a second electrode tab 120 disposed opposite each other, the arcuate conductive sheet 200 being connected to the first electrode tab 110 and extending toward the second electrode tab 120, the conductive sheet electrode tab 300 being spaced apart from the second electrode tab 120, and the arcuate conductive sheet 200 extending from the first electrode tab 110 along the surface of the soft-packed button battery 100 to the conductive sheet electrode tab 300 and being connected thereto.

[0014] In the soft-packed button battery module provided by the embodiments of the present application, compared to the prior art, an arcuate conductive sheet 200 and an electrode tab 300 of the conductive sheet are arranged on a surface of the soft-packed button battery 100, wherein the arcuate conductive sheet 200 is connected to a first electrode tab 110 of the soft-packed button battery 100 and extends from the first electrode tab 110 to the electrode tab 300 of the conductive sheet, wherein the electrode tab 300 of the conductive sheet is arranged at a distance from a second electrode tab 120 of the soft-packed button battery 100, whereby the arcuate conductive sheet 200 and the electrode tab 300 of the conductive sheet compensate for the winding lengths of the two electrodes outside the soft-packed button battery 100.so that the magnetic field generated by the positive electrode current and the magnetic field generated by the negative electrode current cancel each other out, and the strength of the total magnetic field is reduced to the outside, and when the soft-packed button battery module 1000 is used for the sound-emitting device, the degree of insulation of the soft-packed button battery module 10000 from the horn can be increased, the interference of the soft-packed button battery 1000 to the horn can be reduced, the background noise can be reduced, and the sound radiation effect of the sound-emitting device can be improved.

[0015] Optionally, the arc-shaped conductive sheet 200 may also have other shapes, such as a conductive sheet of a plurality of curved shapes formed by sequentially connecting a plurality of straight sheet segments, and may have a circular arc shape, an elliptical arc shape, or other shapes, as long as the conductive sheet is capable of compensating for the difference in the winding length of the electrodes within the soft-packed button battery 100, so that the magnetic fields generated by the positive electrode current and the negative electrode current of the soft-packed button battery 100 can cancel each other out and the interference of the horn by the soft-packed button battery 100 is reduced, although the embodiments of the present application do not impose any specific limitation thereon.

[0016] It is understood that the arcuate conductive sheet 200 and the conductive sheet electrode tab 300 may also be integrally formed, so that the step of connecting the arcuate conductive sheet 200 and the conductive sheet electrode tab 300 may be omitted.

[0017] In some embodiments, the first electrode tab 110 is the positive electrode tab 110 and the second electrode tab 120 is the negative electrode tab 120, the soft-packed button battery 100 is a cylinder with two opposite bottom surfaces, the positive electrode tab 110 and the negative electrode tab 120 are arranged on the shell of the soft-packed button battery 100, and the arcuate conductive sheet 200 extends on any one of the bottom surfaces of the soft-packed button battery 100 adjacent to the electrode tab 300 of the conductive sheet.The arcuate conductive sheet 200 is arranged adjacent to the bottom surface of the soft-packed button battery 100, which allows the extension length of the arcuate conductive sheet 200 to be more than half of the circular shape of the bottom surface, and which can better compensate for the difference in the winding length of the inner electrodes of the soft-packed button battery 100, so that the magnetic field generated by the current of the positive electrode and the magnetic field generated by the current of the negative electrode can better cancel each other, and the strength of the total magnetic field to the outside is further reduced.

[0018] In some other embodiments, the arcuate conductive sheet 200 extends on the shell of the soft-packed button battery 100 to the conductive electrode tab 300 of the conductive sheet, so that it is only necessary to bend the plate-shaped conductive sheet, so that it is sufficient for the conductive sheet to have the shape of an arcuate conductive sheet 200 that abuts the curvature of the shell of the soft-packed button battery 100, which can reduce the difficulty of manufacturing the arcuate conductive sheet 200 and thus reduce the difficulty of manufacturing and the manufacturing cost of the soft-packed button battery module 1000.

[0019] It is understood that in other embodiments, the first electrode tab 110 may also refer to the negative electrode tab and the second electrode tab 120 may also refer to the positive electrode tab.

[0020] Again referring to Fig. 1. In some embodiments, the arcuate conductive sheet 200 extends in a circular arc along the edge of the bottom surface of the soft-packed button battery 100 and bends at the end of the circular arc and extends to the electrode tab 300 of the conductive sheet along the side of the soft-packed button battery 100, so that the arcuate conductive sheet 200 extends in a circular arc along the edge of the bottom surface. This can increase the consistency of the extension length of the arcuate conductive sheet 200 and the difference in the winding length of the internal electrodes of the soft-packed battery 100 to increase the degree of compensation, thereby further reducing the strength of the overall magnetic field of the soft-packed button battery 100 outward. The end of the arcuate conductive sheet 200 is angled and extends along the shell to the electrode tab 300 of the conductive sheet.so that the arcuate conductive sheet 200 fits tightly against the surface of the soft-packed button battery 100 and to enhance the connection strength of the arcuate conductive sheet 200 with the soft-packed button battery 100.

[0021] Optionally, the arc-shaped conductive sheet 200 extends in an arc with a degree of 100° to 250° (e.g., 100°, 200°, and 250°), within which the arc-shaped conductive sheet 200 can effectively compensate for the difference in the winding length of the inner electrodes of the soft-packed button battery 100.

[0022] It is understood that when the degree of arc in which the arc-shaped conductive sheet 200 extends is within a certain range, the electrode tab 300 of the conductive sheet and the negative electrode tab 120 at least partially overlap, and at this time, it is sufficient to dispose the electrode tab 300 of the conductive sheet on the side of the negative electrode tab 120 facing away from the soft-packed button battery 100 side and then interpose an insulating layer between the electrode tab 300 of the conductive sheet and the negative electrode tab 120.

[0023] In some embodiments, the arcuate conductive sheet 200 is bonded to the surface of the soft-packed button battery 100 by means of an adhesive, which can ensure that the arcuate conductive sheet 200 has sufficient bonding strength and stability, while reducing the assembly difficulty and assembly cost of the soft-packed button battery module 1000.

[0024] In some embodiments, the arc-shaped conductive sheet 200 is joined to the positive electrode tab 110 by laser welding, so that the deformation of the arc-shaped conductive sheet 200 and the positive electrode tab 110 during the welding process can be reduced by taking advantage of laser welding, which has low heat input and is not affected by electromagnetic field.

[0025] It is understood that the connection between the arcuate conductive sheet 200 and the electrode tab 300 of the conductive sheet can also be made by laser welding.

[0026] Optionally, the joining method of the arc-shaped conductive sheet 200 and the positive electrode tab 110 and the joining method of the arc-shaped conductive sheet 200 and the conductive sheet electrode tab 300 may also be another welding method or a snap-fit ​​method, as long as it is possible to firmly connect the arc-shaped conductive sheet 200 and the positive electrode tab 110 and use them normally, and at the same time, firmly connect the arc-shaped conductive sheet 200 and the conductive sheet electrode tab 300 and use them normally; the embodiments of the present application do not impose any particular limitation thereon.

[0027] With reference to Fig. 3, the soft-packed button battery module 1000 also includes a positive terminal line 310 and a negative terminal line 121, the positive terminal line 310 is connected to the electrode tab 300 of the conductive sheet by resistance welding, and the negative terminal line 121 is connected to the negative electrode tab 120 by resistance welding, and the resistance welding voltage is several volts, which can save energy, reduce the generation of smoke and light, meet the requirements of environmental protection, and also improve the safety of welding.

[0028] Optionally, the joining method of the electrode tab 300 of the conductive sheet and the positive terminal lead 310 may also be other welding methods or adhesive bonding, as long as the electrode tab 300 of the conductive sheet and the positive terminal lead 310 can be firmly connected and the soft-packed button battery module 1000 can function normally; the embodiments of the present application do not impose any specific limitations thereon.

[0029] Optionally, the arcuate conductive sheet 200 and the electrode tab 300 of the conductive sheet in the above-mentioned embodiments may be made of nickel, or may be made of other conductive materials such as copper, aluminum, etc., as long as the arcuate conductive sheet 200 and the electrode tab 300 of the conductive sheet can be conductive and the soft-packed button battery module 1000 can function normally; the embodiments of the present application do not impose any specific limitations thereon.

[0030] With reference to Fig. 4, the soft-packed button battery module 1000, in some embodiments, further comprises a mounting tray 500 and a mounting ring 600, wherein the mounting tray 500 is arranged on the side of the arcuate conductive sheet 200 facing away from the soft-packed button battery 100 in a capping manner, and caps the positive terminal lead 310 and the negative terminal lead 121 to restrict the electrode tab 300 of the conductive sheet, the positive terminal lead 310 and the negative terminal lead 121 and further fixes the electrode tab 300 of the conductive sheet, the positive terminal lead 310 and the negative terminal lead 121, and wherein the retaining ring 600 is fitted onto an outer periphery of the mounting tray 500 to fix the mounting tray 500.

[0031] The embodiments of the present application also provide a sound radiating device 2000 as shown in Fig. 5, which includes: A horn 2100 and a soft-packed button battery module 1000 as described in the above embodiments, wherein the horn 2100 is connected to the soft-packed button battery module 1000 via a positive terminal line and a negative terminal line of the soft-packed button battery module 1000.

[0032] In the sound radiating device provided by the embodiments of the present application, compared with the prior art, the soft-packed button battery module 1000 provided by the above-mentioned embodiments is used, whereby the interference of the horn 2100 by the soft-packed button battery module 100 is reduced, thus reducing the background noise and improving the sound radiation effect of the sound radiating device 2000.

[0033] The embodiments of the present application also provide an electronic device 3000 as shown in Fig. 6, which includes: A device body 3100 and a sound radiating device 2000 as described in the above-mentioned embodiments. In the electronic device provided by the embodiments of the present application, compared with the prior art, the sound radiating device 2000 provided by the above-mentioned embodiments is arranged in the device body 3100 of the electronic device 3000, thereby enhancing the sound radiation effect of the electronic device 3000.

[0034] Optionally, the electronic device 3000 may be a wireless headset, a smart watch, or other electronic device, and the embodiments of the present application make no limitation thereto.

[0035] With reference to Fig. 7 and Fig.8 together, by way of example, when testing a conventional wireless earphone and an improved earphone including the soft-packed button battery module 1000 provided by the above-mentioned embodiments, it can be found that the fundamental noise peak of the conventional earphone is about +18 dB SPL, while the fundamental noise peak of the improved earphone using the soft-packed button battery module 1000 provided by the present application can be suppressed to about -5 dB SPL, with an obvious optimization effect.

[0036] It should also be noted that a person with ordinary knowledge in this field of technology can understand that many technical details have been proposed in the embodiments of the present application to enable the reader to better understand the present application. However, even without these technical details and based on various variations and modifications of the above-mentioned embodiments, the technical solution to be protected by the present application can be achieved. The division of the above embodiments is for convenience of description and does not constitute a limitation on the specific implementation of the present application, and the embodiments can be combined and referred to one another as long as they do not contradict each other. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] CH 202210556397.7

[0001]

Claims

[1] A soft-packed button battery module (1000), comprising: a soft-packed button battery (100), the soft-packed button battery (100) having a first electrode tab (110) and a second electrode tab (120) arranged opposite each other; an arcuate conductive sheet (200), wherein the arcuate conductive sheet (200) is connected to the first electrode tab (110) and the arcuate conductive sheet (200) extends toward the second electrode tab (120); and a conductive sheet electrode tab (300), the conductive sheet electrode tab (300) being spaced apart from the second electrode tab (120), and the arcuate conductive sheet (200) extending from the first electrode tab (110) along the surface of the soft-packed button battery (100) to and connected to the conductive sheet electrode tab (300). [2] The soft-packed button battery module according to claim 1, wherein the first electrode tab (110) is a positive electrode tab, the second electrode tab (120) is a negative electrode tab, the soft-packed button battery (100) is a cylinder having two opposite bottom surfaces, the positive electrode tab and the negative electrode tab are arranged on the shell of the soft-packed button battery (100), and the arcuate conductive sheet (200) extends on the shell of the soft-packed button battery (100) adjacent to the electrode tab (300) of the conductive sheet. [3] The soft-packed button battery module according to claim 1, wherein the first electrode tab (110) is a positive electrode tab, the second electrode tab is a negative electrode tab (120), the soft-packed button battery (100) is a cylinder having two opposite bottom surfaces, the positive electrode tab and the negative electrode tab are arranged on the shell of the soft-packed button battery (100), and the arc-shaped conductive sheet (200) extends on any one of the bottom surfaces of the soft-packed button battery (100) adjacent to the electrode tab (300) of the conductive sheet. [4] A soft-packed button battery module according to claim 3, wherein the arcuate conductive sheet (200) extends in a circular arc shape along the edge of the bottom surface and is angled at the end of the circular arc shape and extends along the shell to the electrode tab (300) of the conductive sheet. [5] A soft-packed button battery module according to any one of claims 2 to 4, wherein the arc-shaped conductive sheet (200) extends in a circular arc having a degree of 100° to 250°. [6] The soft-packed button battery module according to claim 1, wherein the arcuate conductive sheet (200) is bonded to the surface of the soft-packed button battery (100). [7] A soft-packed button battery module according to any one of claims 2 to 4, wherein the arcuate conductive sheet (200) is joined to the positive electrode tab by laser welding. [8] A soft-packed button battery module according to any one of claims 2 to 4, further comprising a positive terminal lead (310) and a negative terminal lead (121), wherein the positive terminal lead (310) is connected to the electrode tab (300) of the conductive sheet by resistance welding, and wherein the negative terminal lead (121) is connected to the negative electrode tab by resistance welding. [9] A sound radiating device (2000), comprising a horn (2100) and a soft-packed button battery module (1000) according to any one of claims 1-8, wherein the horn (2100) is connected to the soft-packed button battery module (1000) via the positive terminal line (310) and the negative terminal line (121) of the soft-packed button battery module (1000). [10] An electronic device (3000) comprising a device body (3100) and a sound radiating device (2000) according to claim 9.

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