CN113113672A - Winding type battery and TWS Bluetooth headset - Google Patents
Winding type battery and TWS Bluetooth headset Download PDFInfo
- Publication number
- CN113113672A CN113113672A CN202110347968.1A CN202110347968A CN113113672A CN 113113672 A CN113113672 A CN 113113672A CN 202110347968 A CN202110347968 A CN 202110347968A CN 113113672 A CN113113672 A CN 113113672A
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- winding
- battery cell
- planar coil
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/07—Applications of wireless loudspeakers or wireless microphones
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The application discloses a winding type battery, which comprises a winding type battery cell and a conductive structure; wherein the winding type battery cell is connected with the conductive structure in series; when the winding type battery cell is electrified, the direction of the conductive structure is opposite to that of a magnetic field generated by the winding type battery cell. The magnetic field that coiling formula battery during operation produced can be reduced to this application, has reduced the magnetic field interference of coiling formula battery to external world. The application also discloses a TWS Bluetooth headset, which has the beneficial effects.
Description
Technical Field
The application relates to the technical field of battery design, in particular to a winding type battery and a TWS Bluetooth headset.
Background
In recent years, the development of small lithium batteries has been greatly promoted by the popularization of a TWS (True Wireless Stereo) bluetooth headset, and a large number of rechargeable button lithium batteries are used. The manufacturing methods of button battery cells on the market at present mainly include a laminated type and a winding type. The electric core of the winding type button battery is a coil with a winding mode similar to a spiral, and when the battery works, the magnetic field generated by the current flowing through the winding type electric core can interfere with electromagnetic sensing parts around the battery.
Therefore, how to reduce the magnetic field interference generated by the wound battery is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The utility model aims at providing a coiling formula battery and TWS bluetooth headset can reduce the magnetic field interference that produces when coiling formula electricity core circular telegram.
In order to solve the above technical problem, the present application provides a winding type battery, which includes a winding type battery cell and a conductive structure; wherein the winding type battery cell is connected with the conductive structure in series; when the winding type battery cell is electrified, the direction of the conductive structure is opposite to that of a magnetic field generated by the winding type battery cell.
Optionally, the conductive structure includes a planar coil obtained by winding a wire in a plane, and a central axis of the planar coil coincides with a central axis of the winding-type battery cell.
Optionally, the planar coil includes a first planar coil, one end of the first planar coil near the winding center is connected to an electrode of the winding-type battery cell far from the winding center, and the winding direction of the first planar coil is opposite to the winding direction of the winding-type battery cell.
Optionally, the planar coil includes a second type of planar coil, one end of the second type of planar coil, which is far away from the winding center, is connected to the electrode, which is close to the winding center, in the winding-type battery cell, and the winding direction of the second type of planar coil is opposite to the winding direction of the winding-type battery cell.
Optionally, the planar coil includes a third type of planar coil, one end of the third type of planar coil, which is close to the winding center, is connected to the electrode of the winding-type battery cell, which is close to the winding center, and the winding direction of the third type of planar coil is the same as the winding direction of the winding-type battery cell.
Optionally, the planar coil includes a fourth-class planar coil, one end of the fourth-class planar coil, which is far away from the winding center, is connected to the electrode of the winding-type battery cell, which is far away from the winding center, and the winding direction of the fourth-class planar coil is the same as the winding direction of the winding-type battery cell.
Optionally, the conductive structure includes a spiral coil formed by winding a lead on a side surface of the wound battery; when the winding type battery cell is electrified, the current direction of the spiral coil is opposite to the current direction of the winding type battery cell.
Optionally, the conductive structure includes an FPC board provided with a planar spiral path; the FPC board is arranged on the upper end face and/or the lower end face of the winding battery, and when the winding battery cell is electrified, the current direction of the planar spiral passage is opposite to the current direction of the winding battery cell.
Optionally, a magnetic separation sheet is disposed on the upper end face and/or the lower end face of the wound battery.
The application also provides a TWS Bluetooth headset, which comprises any one of the winding type batteries.
The application provides a winding type battery, which comprises a winding type battery cell and a conductive structure; wherein the winding type battery cell is connected with the conductive structure in series; when the winding type battery cell is electrified, the direction of the conductive structure is opposite to that of a magnetic field generated by the winding type battery cell.
The winding type battery comprises a winding type battery cell and a conductive structure, the conductive structure is connected with the winding type battery cell in series, and current also exists in the conductive structure when the winding type battery cell is electrified. Because the magnetic field that produces when electrically conductive structure in this application and circular telegram is opposite with the magnetic field direction that coiling formula electricity core produced, the magnetic field of the two offsets each other promptly, and then reduces the magnetic field that coiling formula battery during operation produced, has reduced the magnetic field interference of coiling formula battery to external world. This application still provides a TWS bluetooth headset simultaneously, including above-mentioned coiling formula battery, has above-mentioned beneficial effect, no longer gives unnecessary details here.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings needed for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a partial cross-sectional view of a wound battery according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a winding type battery cell provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a first wound battery according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a second wound battery provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a third wound battery provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of a fourth wound battery provided in an embodiment of the present application;
fig. 7 is a schematic structural diagram of a fifth wound battery according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a partial cross-sectional view of a wound battery provided in an embodiment of the present application, where the wound battery includes a wound battery core 101 and a conductive structure 102; wherein the winding type battery cell 101 is connected in series with the conductive structure 102; when the winding type battery cell 101 is powered on, the conductive structure 102 is opposite to the direction of the magnetic field generated by the winding type battery cell 101.
The winding type battery can be a winding type button battery, and the winding type button battery includes but is not limited to a steel shell button battery, a micro soft package battery and the like. The battery has the advantages that the battery core in the battery is in a winding type, and when the battery works normally, current flows through the battery core to generate a magnetic field perpendicular to the top cover (top surface) or the bottom shell (bottom surface) of the battery.
The metal bottom shell and the metal top cover can be arranged outside the winding type battery cell, and a lead can be led out from the positive pole or the negative pole of the winding type battery cell to be connected with the conductive structure. When the winding type battery cell is electrified, the current direction of the circuit inside the conductive structure is opposite to the current direction in the winding type battery cell, so that the magnetic field generated by the conductive structure is opposite to the magnetic field generated by the winding type battery cell.
The conductive structure may include a conductive coil and/or an FPC board provided with a planar spiral path, and the number and the arrangement position of the conductive coil and the number and the arrangement position of the FPC board provided with the planar spiral path are not limited in this embodiment, as long as the magnetic field generated by the winding-type battery cell can be offset when the winding-type battery cell is powered on.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a wound cell according to an embodiment of the present disclosure, in fig. 2, P1 is an electrode near a winding center in the wound cell, and P2 is an electrode far from the winding center in the wound cell. The conductive structure in the wound battery may include a planar coil, and/or a spiral coil, and/or an FPC board provided with a planar spiral path. The conductive structure can be fixed on the upper end surface and the lower end surface or the side surface of the winding type battery through double-sided adhesive tapes or Mylar films.
The planar coils and spiral coils include, but are not limited to, metal enameled coils, wound pole pieces, printed coils, and the like. The coils are arranged in a spiral mode, and the number of winding turns is more than or equal to 2. The planar coil and the spiral coil can be one layer or multiple layers and are parallel to the battery inner core. One end of the coil is connected in series with the positive electrode of the battery (the other end of the coil is the positive electrode of the battery module) or with the negative electrode of the battery (the other end of the coil is the negative electrode of the battery module). When the battery works normally, the current flowing through the battery core in the battery also flows through the coil, a magnetic field opposite to the direction of the magnetic field generated by the winding type battery core is generated, and the magnetic field can offset part of the magnetic field generated by the winding type battery core in the battery, so that the interference to the outside is reduced.
The planar coil may be a coil obtained by winding a lead extending from the positive electrode and/or the negative electrode of the winding-type battery cell in a plane (i.e., winding the lead in a spiral shape), and a central axis of the planar coil coincides with a central axis of the winding-type battery cell. The planar coils are classified according to the winding direction and the connection mode, the planar coils include any one or any combination of a first type of planar coil, a second type of planar coil, a third type of planar coil and a fourth type of planar coil, and the number of each type of planar coil included in the wound battery can be any value.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a first winding type battery provided in the embodiment of the present application, where 102A in fig. 3 is a first-type planar coil, and a dotted line in fig. 3 is a circuit of a series winding type battery cell and a conductive structure. As shown in fig. 3, one end of the first-type planar coil close to the winding center is connected to the electrode of the winding-type battery cell far from the winding center, and the winding direction of the first-type planar coil is opposite to the winding direction of the winding-type battery cell. When the winding type battery cell is electrified, the current direction in the winding type battery cell is anticlockwise, and the current direction of the first plane coil is clockwise.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a second winding type battery provided in the embodiment of the present application, where 102B in fig. 4 is a second type of planar coil, and a dotted line in fig. 4 is a circuit of a series winding type battery cell and a conductive structure. As shown in fig. 4, one end of the second type of planar coil, which is far away from the winding center, is connected to the electrode of the winding type battery cell, which is close to the winding center, and the winding direction of the second type of planar coil is opposite to the winding direction of the winding type battery cell. When the winding type battery cell is electrified, the current direction in the winding type battery cell is anticlockwise, and the current direction of the second plane coil is clockwise.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a third winding type battery provided in the embodiment of the present application, where 102C in fig. 5 is a third type of planar coil, and a dotted line in fig. 5 is a circuit of a series winding type battery cell and a conductive structure. One end of the third type of planar coil, which is close to the winding center, is connected with the electrode of the winding type battery cell, which is close to the winding center, and the winding direction of the third type of planar coil is the same as the winding direction of the winding type battery cell. When the winding type battery cell is electrified, the current direction in the winding type battery cell is anticlockwise, and the current direction of the third plane coil is clockwise.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a fourth winding type battery provided in the embodiment of the present application, where 102D in fig. 6 is a fourth type of planar coil, and a dotted line in fig. 6 is a circuit of a series winding type battery cell and a conductive structure. One end of the fourth plane coil, which is far away from the winding center, is connected with the electrode, which is far away from the winding center, in the winding type battery cell, and the winding direction of the fourth plane coil is the same as the winding direction of the winding type battery cell. When the winding type battery cell is electrified, the current direction in the winding type battery cell is anticlockwise, and the current direction of the fourth type planar coil is clockwise.
Referring to fig. 7, fig. 7 is a schematic structural view of a fifth winding battery provided in the present embodiment, where 102E in fig. 7 is a spiral coil, and the spiral coil is a coil obtained by winding a lead on a side surface of the winding battery. Specifically, the spiral coil may be a coil in which a lead extending from the positive electrode and/or the negative electrode of the wound battery cell is wound (i.e., spirally wound) in the side surface of the wound battery. The pitch direction of the spiral coil is the central axis direction of the winding battery. When the winding type battery cell is electrified, the current direction of the spiral coil is opposite to the current direction of the winding type battery cell.
The embodiment can also ensure that the directions of magnetic fields generated by the electrified winding type battery and the coil are opposite and the size of the magnetic fields generated by the electrified winding type battery and the coil are the same by adjusting the number of turns of the planar coil or the spiral coil, and the arrangement of the coil can effectively inhibit the interference magnetic field generated by the winding type battery.
When the conductive structure may comprise an FPC board provided with a planar spiral path; the FPC board may be disposed on an upper end surface and/or a lower end surface of the winding battery, and when the winding battery cell is powered on, a current direction of the planar spiral passage is opposite to a current direction of the winding battery cell. The FPC board provided with the planar spiral path described above corresponds to a planar coil provided on the FPC board.
Furthermore, the upper end face and/or the lower end face of the wound battery of the embodiment may be further provided with a magnetic shielding sheet, so as to further reduce the magnetic field interference of the wound battery to the outside.
The embodiment of the application also provides a TWS Bluetooth headset which comprises any one of the winding type batteries. The TWS bluetooth headset works by using the electric energy in the coiled battery, and the embodiment uses the electromagnetic induction principle to connect a conductive structure in series with the positive electrode or the negative electrode of the coiled battery, and the conductive structure is fixed on the top cover or the bottom shell of the button battery. When the loudspeaker is powered on, the conductive structure generates a magnetic field with the direction opposite to that of the magnetic field generated by the winding type battery core in the winding type battery, and the magnetic field can offset part of the magnetic field generated by the winding type battery core in the battery, so that the bottom noise problem caused by the interference of the magnetic field of the winding type battery to the loudspeaker is effectively inhibited.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A winding type battery is characterized by comprising a winding type battery cell and a conductive structure; wherein the winding type battery cell is connected with the conductive structure in series; when the winding type battery cell is electrified, the direction of the conductive structure is opposite to that of a magnetic field generated by the winding type battery cell.
2. A coiled battery according to claim 1, wherein the conductive structure comprises a planar coil formed by winding a wire in a plane, and a central axis of the planar coil coincides with a central axis of the coiled cell.
3. A coiled battery according to claim 2, wherein the planar coil comprises a first planar coil, one end of the first planar coil near the coiling center is connected to an electrode of the coiled battery cell far from the coiling center, and the coiling direction of the first planar coil is opposite to that of the coiled battery cell.
4. A coiled battery according to claim 2, wherein the planar coil comprises a second type of planar coil, one end of the second type of planar coil away from the winding center is connected to the electrode of the coiled battery cell close to the winding center, and the winding direction of the second type of planar coil is opposite to the winding direction of the coiled battery cell.
5. A coiled battery according to claim 2, wherein the planar coil comprises a third planar coil, one end of the third planar coil near the winding center is connected to the electrode of the coiled battery cell near the winding center, and the winding direction of the third planar coil is the same as the winding direction of the coiled battery cell.
6. A coiled battery according to claim 2, wherein the planar coil comprises a fourth type of planar coil, one end of the four type of planar coil away from the winding center is connected to the electrode of the coiled battery cell away from the winding center, and the winding direction of the fourth type of planar coil is the same as the winding direction of the coiled battery cell.
7. A coiled battery according to claim 1, wherein the conductive structure comprises a spiral coil in which a wire is coiled on a side surface of the coiled battery; when the winding type battery cell is electrified, the current direction of the spiral coil is opposite to the current direction of the winding type battery cell.
8. A rolled battery as claimed in claim 1, wherein the conductive structure comprises an FPC board provided with a planar spiral path; the FPC board is arranged on the upper end face and/or the lower end face of the winding battery, and when the winding battery cell is electrified, the current direction of the planar spiral passage is opposite to the current direction of the winding battery cell.
9. A rolled battery as claimed in any one of claims 1 to 8, wherein a magnetic separator sheet is provided on the upper end face and/or the lower end face of the rolled battery.
10. A TWS bluetooth headset comprising a wound battery according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110347968.1A CN113113672A (en) | 2021-03-31 | 2021-03-31 | Winding type battery and TWS Bluetooth headset |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110347968.1A CN113113672A (en) | 2021-03-31 | 2021-03-31 | Winding type battery and TWS Bluetooth headset |
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| CN113113672A true CN113113672A (en) | 2021-07-13 |
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| CN202110347968.1A Pending CN113113672A (en) | 2021-03-31 | 2021-03-31 | Winding type battery and TWS Bluetooth headset |
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Cited By (3)
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| CN114157043A (en) * | 2021-11-10 | 2022-03-08 | 广西电网有限责任公司电力科学研究院 | Wireless charging device and robot capable of being charged wirelessly |
| CN114189056A (en) * | 2021-11-10 | 2022-03-15 | 广西电网有限责任公司电力科学研究院 | Wireless charging method for robot |
| CN115224415A (en) * | 2022-07-14 | 2022-10-21 | 重庆市紫建电子股份有限公司 | Can improve electric core of bluetooth earphone base noise |
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