CN213343218U

CN213343218U - Circuit structure, battery and electronic equipment

Info

Publication number: CN213343218U
Application number: CN202022323417.5U
Authority: CN
Inventors: 孙国祯
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-09-11
Filing date: 2020-10-18
Publication date: 2021-06-01
Anticipated expiration: 2030-10-18
Also published as: CN114173542A

Abstract

The embodiment of the application provides a circuit structure, battery and electronic equipment, and circuit structure includes: a battery comprising a first positive electrode, a first negative electrode, and a cell coupled between the first positive electrode and the first negative electrode, the cell capable of generating a first induced magnetic field in the presence of a varying current; and an electromagnetic inductor configured to generate a second induced magnetic field in the presence of a varying current, the second induced magnetic field being capable of being superimposed with the first induced magnetic field. The second induction magnetic field can be superposed with the first induction magnetic field, and the superposed induction magnetic field meets the requirements of peripheral devices and the requirements of different scenes.

Description

Circuit structure, battery and electronic equipment

Technical Field

The present disclosure relates to electronic technologies, and particularly to a circuit structure, a battery and an electronic device.

Background

In an electronic device, if the current of a battery changes, the battery generates an induced magnetic field due to the change of the current due to the internal structure of the battery, thereby generating electromagnetic radiation. The electromagnetic radiation generated by the battery can affect peripheral devices.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a circuit structure, a battery and electronic equipment, which can change the electromagnetic radiation of the battery and change the influence on peripheral devices.

The embodiment of the present application provides a circuit structure, which includes:

a battery comprising a first positive electrode, a first negative electrode, and a cell coupled between the first positive electrode and the first negative electrode, the cell capable of generating a first induced magnetic field in the presence of a varying current; and

an electromagnetic inductor configured to generate a second induced magnetic field in the presence of a varying current, the second induced magnetic field being capable of being superimposed with the first induced magnetic field.

The embodiment of the present application further provides a battery, which includes:

a first positive electrode;

a first negative electrode;

a cell coupled between the first positive electrode and the first negative electrode, the cell capable of generating a first induced magnetic field in the presence of a varying current; and

An embodiment of the present application further provides an electronic device, which includes:

a load; and

a circuit arrangement or a battery, the circuit arrangement or the battery being connected to and supplying power to the load, the circuit arrangement being as described above, the battery being as described above.

In the embodiment of the application, the battery core of the battery can generate a first induction magnetic field when changing current exists, the electromagnetic inductor is configured to generate a second induction magnetic field when changing current exists, the second induction magnetic field can be superposed with the first induction magnetic field, and the superposed induction magnetic field meets the requirements of peripheral devices and meets the requirements of different scenes.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below.

Fig. 1 is a first structural schematic diagram of a circuit structure according to an embodiment of the present disclosure.

Fig. 2 is a second schematic structural diagram of a circuit structure according to an embodiment of the present disclosure.

Fig. 3 is a schematic diagram of a third structure of a circuit structure according to an embodiment of the present application.

Fig. 4 is a fourth schematic structural diagram of a circuit structure according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a battery cell of the battery shown in fig. 3 or fig. 4.

Fig. 6 is a schematic current diagram of the cell shown in fig. 5.

Fig. 7 is another current schematic of the cell shown in fig. 5.

Fig. 8 is a fifth structural diagram of a circuit structure according to an embodiment of the present application.

Fig. 9 is a schematic view of a first structure of a battery assembly according to an embodiment of the present disclosure.

Fig. 10 is a schematic diagram of a second structure of a battery assembly according to an embodiment of the present disclosure.

Fig. 11 is a schematic view of a first structure of a battery according to an embodiment of the present disclosure.

Fig. 12 is a schematic diagram of a second structure of a battery according to an embodiment of the present application.

Fig. 13 is a schematic diagram of a third structure of a battery according to an embodiment of the present application.

Fig. 14 is a schematic diagram of a fourth structure of a battery provided in the embodiment of the present application.

Fig. 15 is a schematic diagram of a fifth structure of a battery according to an embodiment of the present application.

Fig. 16 is a schematic diagram of a sixth structure of a battery according to an embodiment of the present application.

Fig. 17 is a schematic cross-sectional view of the circuit board in the battery of fig. 16.

Fig. 18 is a schematic structural diagram of a circuit board in a battery according to an embodiment of the present application.

Fig. 19 is a schematic diagram of a seventh structure of a battery provided in the embodiment of the present application.

Fig. 20 is an eighth structural schematic diagram of a battery provided in the embodiment of the present application.

Fig. 21 is an exploded view of the battery shown in fig. 20.

Fig. 22 is a schematic structural diagram of a first electronic device according to an embodiment of the present application.

Fig. 23 is a second structural schematic diagram of an electronic device according to an embodiment of the present application.

Fig. 24 is a schematic structural diagram of a battery in the electronic device shown in fig. 22.

Fig. 25 is a third schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 26 is a schematic flow chart illustrating a method for manufacturing a battery according to an embodiment of the present disclosure.

Detailed Description

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. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present application.

Referring to fig. 1, fig. 1 is a first schematic structural diagram of a circuit structure provided in an embodiment of the present application, and the circuit structure 200 includes a battery 220 and an electromagnetic inductor 240. Battery 220 includes a first positive electrode 222, a first negative electrode 224, and a cell 226, where cell 226 is connected between first positive electrode 222 and first negative electrode 224, and cell 226 is capable of supplying power to a load through first positive electrode 222 and first negative electrode 224. The cell 226 is capable of generating a first induced magnetic field 230 in the presence of a varying current.

It is understood that the cells 226 may provide power to a load, such as an acoustoelectric device, a processor, etc. Because the power of the acoustoelectric device or processor is different at different times, that is, the acoustoelectric device or processor is an alternating load, the current in the acoustoelectric device or processor is changed, and the current in the battery cell 226 is changed along with the current in the acoustoelectric device or processor, so that the battery cell 226 generates a changed first induced magnetic field. The first induced magnetic field may cause interference with surrounding devices. For example, the acoustoelectric device may generate noise due to the first induced magnetic field.

The electromagnetic inductor 240 is configured to generate a second induced magnetic field 250 when a changing current exists, the second induced magnetic field 250 can be superposed with the first induced magnetic field 230, and the superposed induced magnetic field meets requirements of peripheral devices and meets requirements of different scenes.

After the second induced magnetic field 250 is superimposed with the first induced magnetic field 230, the magnetic field strength of the first induced magnetic field 230 is weakened, that is, the second induced magnetic field 250 can cancel part or all of the first induced magnetic field 230. The first induced magnetic field 230 and the second induced magnetic field 250 are superposed to form a total induced magnetic field of the circuit structure 200, and the total induced magnetic field is smaller than the magnetic field intensity of the first induced magnetic field 230, so that the influence on peripheral devices can be weakened. And a complex magnetic field interference preventing structure is not required to be arranged at the periphery of the battery 220, so that the cost is reduced. The electromagnetic inductor 240 is added to effectively and obviously offset the magnetic field radiation of the battery cell 226, the design is ingenious and effective, and the effect of improving the magnetic field interference is stable and reliable.

For example, when the peripheral device is an electroacoustic device, the electroacoustic device is interfered by the first induced magnetic field to generate noise, and after the second induced magnetic field is superposed with the first induced magnetic field, the electroacoustic device is influenced by the total induced magnetic field, that is, the superposed second induced magnetic field is influenced by the first induced magnetic field, so that no noise is generated or the generated noise is very small.

It can be understood that the magnetic field direction and the magnetic field strength of the second induced magnetic field 250 of the electromagnetic inductor 240 and the first induced magnetic field 230 are hardly identical, and in order to reduce the influence on a part of peripheral devices, the electromagnetic inductor 240 may be reasonably arranged, so as to weaken the magnetic field strength of the first induced magnetic field 230 at the position of the peripheral devices. Referring to fig. 2, fig. 2 is a second structural schematic diagram of the circuit structure according to the embodiment of the present disclosure, the electromagnetic inductor 240 may be disposed at a first position 320 in the first induced magnetic field 230, so that after the second induced magnetic field 250 is superimposed with the first induced magnetic field 230, the magnetic field strength at a second position 340 in the first induced magnetic field 230 is weakened.

The electromagnetic inductor 240 may be first disposed at the first position 320, then the second position 340 at which the first induced magnetic field 230 is weakened by the second induced magnetic field 250 is calculated, and the peripheral devices are disposed at the second position 340, where the magnetic field strength of the peripheral devices at the second position 340 is smaller, that is, the magnetic field strength of the peripheral devices under interference is smaller, so that the interference of the peripheral devices is reduced. It is also possible to first set the peripheral device at the second position 340, then calculate the required second induced magnetic field 250 according to the requirement that the magnetic field strength of the first induced magnetic field 230 at the second position 340 needs to be weakened, and then place the selected appropriate electromagnetic inductor 240 at the appropriate position to achieve the above requirement.

It can be understood that, if the peripheral device may need a larger magnetic field strength, the magnetic field strength of the first induced magnetic field is enhanced after the second induced magnetic field is superimposed with the first induced magnetic field. The first induction magnetic field and the second induction magnetic field are superposed to form a total induction magnetic field of the circuit structure, and the total induction magnetic field is larger than the magnetic field intensity of the first induction magnetic field, so that the influence on peripheral devices can be enhanced.

For example, when the peripheral device is the preset magnetic induction device, the preset magnetic induction device can receive the first induction magnetic field and convert the first induction magnetic field into electric energy, and after the second induction magnetic field is superposed with the first induction magnetic field, the preset magnetic induction device is influenced by the total induction magnetic field, namely, the superposed second induction magnetic field and the superposed first induction magnetic field influence, and more electric energy can be converted.

Referring to fig. 3 and fig. 4, fig. 3 is a third schematic structural diagram of a circuit structure provided in the embodiment of the present application, and fig. 4 is a fourth schematic structural diagram of the circuit structure provided in the embodiment of the present application. The battery 220 may power the load 40. The electromagnetic inductor may be a coil 242, and the coil 242 is connected to the first positive electrode 222 or the first negative electrode 224. The coil 242 is directly electrically connected to the battery cell 226, and the current in the coil 242 and the current in the battery cell 226 may be equal, so that the second induced magnetic field 250 generated by the coil 242 can change along with the first induced magnetic field 230 generated by the battery cell 226. It is understood that the electromagnetic inductor can be other devices capable of generating an induced magnetic field.

It is understood that the structure of the coil may be determined according to the first induced magnetic field of the cell. For example, the number of turns of the coil, the diameter of the coil, the thickness of the coil, the material of the coil, and the like may be determined comprehensively from the first induced magnetic field so that the second induced magnetic field of the coil cancels as much of the first induced magnetic field as possible.

The current direction of the battery cell is opposite to that of the coil. The magnetic field direction generated by the opposite current is also opposite, so that the direction of the second induced magnetic field generated by the coil is opposite to the direction of the first induced magnetic field, that is, the second induced magnetic field 250 and the first induced magnetic field 230 can cancel each other, thereby reducing or eliminating the total induced magnetic field of the battery and reducing the interference of the total induced magnetic field of the battery on peripheral devices.

It can be understood that the intensity of the electromagnetic field generated by the current is strong or weak, the intensity of the magnetic field is related to the intensity of the current, and under certain conditions, the larger the current is, the larger the induced magnetic field of the current is. The induced magnetic field of the current has a direction, and the judgment of the direction of the induced magnetic field can be carried out by an ampere rule, namely, a lead (a conductor or a current) is held by a right hand to enable the direction of a thumb to be the current flow direction (the current flows from a positive pole to a negative pole, and the thumb points to the negative pole), and at the moment, the surrounding direction of four fingers is the direction of the magnetic field.

Magnetic field formula:

wherein B is the magnitude of the magnetic field at a specific point, μ₀Is constant, the magnitude of the constant being dependent on the nature of the material, different materials having different constants, e.g. mu in vacuum₀The size is 4 pi x 10^-7I is the current of the conductor and r is the distance between the conductor and a particular point. Therefore, the currents of the battery cell and the coil are equal and opposite, the magnetic fields generated by the battery cell and the coil are opposite, and the second induction magnetic field can reduce or eliminate the first induction magnetic field or completely offset the first induction magnetic field at a specific position by selecting a proper coil structure and a proper coil position.

It will be appreciated that the coil may be formed by a first trace etched from the circuit board. Illustratively, the circuit board has etched traces thereon, which can form corresponding circuit traces and electrically connect the electrical components. For example, the coil is formed by copper wires etched on the circuit board, and the coil formed by the copper wires of the circuit board is small in volume. It should be noted that the circuit board may be used only for the arrangement of the coil. For example, a circuit board specially provided with the coil. Other functional devices can also be arranged on the circuit board. For example, a coil is added by a circuit board on which the functional device is disposed. Namely, the existing circuit board is reused, and the coil is etched on the existing circuit board. The circuit board can be further provided with a bonding pad, and the bonding pad can be used for conveniently and electrically connecting the coil with an external device or electrically connecting the coil with the external device. The coil may also be provided on the circuit board in other ways, such as the coil being a separate component that is then soldered to the circuit board. In other embodiments, the coil may not be disposed on the circuit board, and the coil may be formed separately and then connected to the battery cell through the corresponding wire. For example, the coil is an independent coil, and is independently arranged on one side of the battery cell through the rigidity of the coil.

Referring to fig. 5 and fig. 6, fig. 5 is a schematic diagram of a structure of a battery cell of the battery shown in fig. 3 or fig. 4, and fig. 6 is a schematic diagram of a current of the battery cell shown in fig. 5. The battery cell 226 includes a main body case 223, a positive electrode diaphragm 225 and a negative electrode diaphragm 227, the positive electrode diaphragm 225 and the negative electrode diaphragm 227 are wound in the main body case 223, the positive electrode diaphragm 225 is electrically connected to the first positive electrode 222, and the negative electrode diaphragm 227 is electrically connected to the first negative electrode 224224. For example, the cell 226, i.e., the positive diaphragm 225 and the negative diaphragm 227, may generate a current in a counterclockwise direction, and the coil 242 may generate a current in a clockwise direction. Of course, in other embodiments, the cells 226, i.e., the positive diaphragm 225 and the negative diaphragm 227, generate clockwise current, and the coil 242 generates counterclockwise current.

Referring to fig. 7, fig. 7 is another schematic current diagram of the battery cell shown in fig. 5. The battery cell 226 may also have two directions of current inside, such as the positive diaphragm 225 and the negative diaphragm 227 generate currents in different directions. The electromagnetic fields generated by the currents in the two directions are opposite to each other, so that the equivalent induced magnetic field of the battery cell 226 can be effectively reduced, but because of the internal structure of the battery cell 226, the equivalent induced magnetic field still exists, and the equivalent induced magnetic field finally generated by the battery cell 226 is the first induced magnetic field 230.

Referring to fig. 8, fig. 8 is a fifth structural schematic diagram of a circuit structure according to an embodiment of the present disclosure. The circuit structure 200 may further include a current detector 260, the current detector 260 being connected to the electromagnetic inductor 240. The current detector 260 detects a first current in the battery cell 226, and adjusts a second current in the electromagnetic inductor 240 according to the first current, wherein the battery cell 226 generates a first induced magnetic field 230 according to the first current, and the electromagnetic inductor 240 generates a second induced magnetic field 250 according to the second current.

The electromagnetic inductor 240 may not be directly connected to the battery 220, and the current in the electromagnetic inductor 240 may be equal to or different from the current in the battery cell 226. Specifically, the current detector 260 detects a first current of the battery cell 226, calculates a second current required by the electromagnetic inductor 240 according to the first current, and adjusts the second current in the electromagnetic inductor 240 accordingly. It is understood that the battery cell 226 generates the first induced magnetic field 230 in the above embodiment according to the first current, the electromagnetic inductor 240 generates the second induced magnetic field 250 in the above embodiment according to the second current, and the second induced magnetic field 250 can be overlapped with the first induced magnetic field 230 to weaken the magnetic field strength of the first induced magnetic field 230. The adjustment of the second current in the electromagnetic inductor 240 may be implemented by a current generator or a rheostat electrically connected to the electromagnetic inductor 240, and other structures may be adopted to adjust the second current in the electromagnetic inductor 240 as needed, and the structure for adjusting the second current in the electromagnetic inductor 240 is not limited in this embodiment.

Referring to fig. 9 and 10, fig. 9 is a schematic view of a first structure of a battery assembly provided in an embodiment of the present application, and fig. 10 is a schematic view of a second structure of the battery assembly provided in the embodiment of the present application. The battery assembly 20 includes a circuit structure 200, and the structure of the circuit structure 200 may adopt the structure of the circuit structure in any of the above embodiments, which is not described herein again.

Wherein, when the electromagnetic inductor 240 is the coil 242; one end of the coil 242 is connected to the other end of the first positive electrode 222 as a third positive electrode 262 of the battery 220 assembly, or one end of the coil 242 is connected to the other end of the first negative electrode 224 as a third negative electrode 264 of the battery 220 assembly.

It is understood that the electromagnetic inductor may be integrally packaged with the battery as a unitary structure. Such as enclosing the electromagnetic inductor and battery in a housing. The electromagnetic inductor and the battery can also be assembled. Specifically, the electromagnetic inductor is arranged outside the battery and assembled through other structures. If the electromagnetic inductor is arranged on one side of the battery and fixed on other structures. The embodiment of the present application further provides a battery, specifically please refer to fig. 11, where fig. 11 is a first structural schematic diagram of the battery provided in the embodiment of the present application. Battery 220 includes a first positive electrode 222, a first negative electrode 224, a cell 226, and an electromagnetic inductor 240. The cell 226 is connected between the first positive electrode 222 and the first negative electrode 224, and the cell 226 can supply power to a load through the first positive electrode 222 and the first negative electrode 224. The cell 226 is capable of generating a first induced magnetic field 230 in the presence of a varying current.

Referring to fig. 12, fig. 12 is a schematic diagram of a second structure of a battery according to an embodiment of the present disclosure. The battery 220 further includes a housing 228, and the cell 226 and the electromagnetic inductor 240 are enclosed within the housing 228. The cell 226 and the electromagnetic inductor 240 are enclosed within a housing 228 to form the unitary battery 220.

An electromagnetic shielding layer may be disposed on the inner surface and/or the outer surface of the housing 228, and after the second induced magnetic field 250 is superimposed to weaken the first induced magnetic field 230, the superimposed induced magnetic field is weakened again, so as to reduce the influence of the battery 220 on the peripheral devices.

Referring to fig. 13 and 14, fig. 13 is a schematic diagram of a third structure of a battery provided in the embodiment of the present application, and fig. 14 is a schematic diagram of a fourth structure of the battery provided in the embodiment of the present application. The battery cell 226 includes a second positive electrode 2262 and a second negative electrode 2264, the electromagnetic inductor 240 is a coil 242, one end of the coil 242 is connected to the second positive electrode 2262, and the other end is connected to the first positive electrode 222; alternatively, one end of the coil 242 is connected to the second negative electrode 2264, and the other end is connected to the first negative electrode 224.

The cell is a winding cell, and the coil 242 may be disposed at one end of the cell 226 and parallel to an end surface of the cell 226. The coil 242 is parallel to the corresponding end surface of the battery cell 226, so that the coil 242 can be better arranged, and the space occupied by the coil 242 is reduced. For example, the cell may be a column, the cell may include a flat top surface, and the coil may be disposed on the top surface and parallel to the top surface of the cell. The battery cell can comprise an arc-shaped side face, the coil can be arranged on the side face, and the coil is also arc-shaped and parallel to the side face of the battery cell. In other embodiments, the coil 242 may not be parallel to the main body portion, that is, the coil 242 is disposed obliquely with respect to the main body portion, and if the second induced magnetic field generated by the coil 242 is parallel to the first induced magnetic field generated by the main body portion, the coil 242 occupies more space. And a complex magnetic field interference preventing structure is not required to be arranged at the periphery of the battery 220, so that the cost is reduced. The magnetic field radiation of the battery cell 226 can be effectively and obviously offset by adding the coil 242, the design is ingenious and effective, the effect of improving the magnetic field interference is stable and reliable, and the influence on the size of the battery 220 is very small.

Battery 220 also includes an insulating layer 227, where insulating layer 227 is disposed between cells 226 and coil 242. The coil 242 may abut the body portion through an insulating layer 227, thereby ensuring that the coil 242 is insulated from the cell 226 and generates opposing magnetic fields that cancel each other out. It is understood that the thickness of the insulating layer 227 may be adjusted as needed to better counteract the first induced magnetic field 230 by the second induced magnetic field 250.

Referring to fig. 15, fig. 15 is a schematic view of a fifth structure of a battery according to an embodiment of the present disclosure. The battery 220 further includes a protective member 229, and the electromagnetic inductor 240 is disposed in the protective member 229, and the protective member 229 abuts the battery cell 226.

The electromagnetic sensor 240 is disposed in the protection member 229, the protection member 229 can protect the electromagnetic sensor 240, and the protection member 229 can be a box or other structure. For example, the protection member 229 is formed after a gel is cured. The electromagnetic inductor 240 is first embedded in the gel, and the gel is cured to form the protection member 229. The protector 229 may be an insulating material. The protection member 229 may be an insulation case or may be formed by curing an insulation paste.

With continued reference to fig. 2, it can be understood that the second induced magnetic field 250 of the electromagnetic inductor 240 and the first induced magnetic field 230 are hardly identical in magnetic field direction and magnetic field strength, and in order to reduce the influence on a part of peripheral devices, the electromagnetic inductor 240 may be reasonably arranged, so as to weaken the magnetic field strength of the first induced magnetic field 230 at the position of the peripheral devices. Specifically, the electromagnetic inductor 240 may be disposed at a first position 320 within the first induced magnetic field 230, so that after the second induced magnetic field 250 is superimposed with the first induced magnetic field 230, the magnetic field strength at a second position 340 within the first induced magnetic field 230 is weakened.

The electromagnetic inductor 240 may be first disposed at the first position 320, then the second position 340 at which the first induced magnetic field 230 is weakened by the second induced magnetic field 250 is calculated, and the peripheral device is disposed at the second position 340, where the magnetic field strength of the peripheral device at the second position 340 is smaller, that is, the magnetic field strength of the peripheral device interfered is smaller, so as to reduce the interference of the peripheral device.

It is also possible to first set the peripheral device at the second position 340, then calculate the required second induced magnetic field 250 according to the requirement that the magnetic field strength of the first induced magnetic field 230 at the second position 340 needs to be weakened, and then place the selected appropriate electromagnetic inductor 240 at the appropriate position to achieve the above requirement.

Referring to fig. 16, fig. 16 is a schematic view illustrating a sixth structure of a battery according to an embodiment of the present disclosure. The battery 220 may further include a circuit board 210, and the electromagnetic inductor 240 is disposed on the circuit board 210. The circuit board 210 may serve as a carrier of the electromagnetic inductor 240, facilitating the arrangement of the electromagnetic inductor 240. It is understood that the electromagnetic inductor may be provided independently by the nature of the material itself, without being provided on the carrier. It should be noted that, in the drawing, the circuit board may be disposed at an interval from the battery cell 226, or may be disposed adjacent to the battery cell.

Referring to fig. 17, fig. 17 is a schematic cross-sectional view of a circuit board in the battery shown in fig. 16. The circuit board 210 includes a first side 213 and a second side 215 opposite to each other, and the electromagnetic inductor 240 is disposed on the first side 213 and the second side is disposed with the functional element 218. It is understood that the electromagnetic inductor 240 may be multiplexed on the circuit board 210 where the functional element 218 is disposed. The battery 220 can supply power to the functional element 218 on the circuit board 210, such as a processor, the electromagnetic inductor 240 is arranged on the first side surface 213 opposite to the arrangement of the functional element 218, the arrangement of the functional element 218 is not influenced, the first side surface 213 is fully utilized, the influence on the circuit board 210 is very small, and the circuit board 210 can be conveniently multiplexed.

It is understood that the first side 213 can be a bottom surface of the circuit board 210, the second side 215 can be a top surface of the circuit board 210, the top surface can be mounted or soldered with the functional element 218, the bottom surface generally has no or less functional elements, and the bottom surface has a larger empty area, so that the bottom surface has a condition for disposing the electromagnetic inductor, and the bottom surface can be conveniently disposed with the electromagnetic inductor. The functional element 218 may include a spring plate, a tab, or other functional elements, and may also include a processor, a memory, or other functional elements. The circuit board provided with the electromagnetic inductor and the functional element can be produced and controlled in a large scale, and the consistency is good.

The electromagnetic inductor may be disposed on a side of the circuit board 210 facing the electric core 226, and the electromagnetic inductor is closer to the electric core 226, so that the second induced magnetic field 250 generated by the electromagnetic inductor is better reduced or offset from the first induced magnetic field 230. The electromagnetic inductor can also be arranged on one side of the circuit board, which deviates from the battery cell 226, as required, the circuit board is not provided with the electromagnetic inductor towards one side of the battery cell 226, and no element or few elements are arranged, so that the circuit board is convenient to be attached to the battery cell 226.

The electromagnetic inductor may be a coil. The coil disposed on the circuit board may be an independent element, that is, the coil is manufactured and then mounted on the circuit board. The circuit board is a carrier of the coil, and the coil is convenient to install. And the coil can be connected with the cathode of the battery cell through a welding disc on the circuit board, and can be used as the cathode of the battery through the welding disc on the circuit board or other devices. It is understood that the coil may also be connected to the positive electrode of the battery cell through a pad on the circuit board, and serve as the positive electrode of the battery through a pad or other device on the circuit board.

The coil may also be formed in other ways. For example, referring to fig. 18, fig. 18 is a schematic structural diagram of a circuit board in a battery according to an embodiment of the present disclosure. The circuit board 210 has a first trace 246 formed by etching, and the first trace 246 forms a coil 242. Therefore, when the circuit board 210 is manufactured, the coil 242 can be directly etched on the circuit board 210 without increasing the thickness of the circuit board 210. For example, the coil 242 formed by copper wires is etched on the circuit board 210, and the coil 242 formed by copper wires of the circuit board 210 is small in size. It should be noted that the circuit board 210 may be used only for disposing the coil 242. For example, a circuit board 210 provided with a coil 242 is added. Other functional devices may also be disposed on the circuit board 210. For example, the coil 242 is provided by the circuit board 210 provided with the functional device.

The line width of the first trace 246 forming the coil body 244, the number of turns of the coil 242, the distance between the coil 242 and the battery cell 226, the diameter of the coil 242, and the like may be set as required. It is understood that the magnetic field strength of the second induced magnetic field 250 may be increased when the number of turns of the coil 242 is greater, but the area of the second induced magnetic field 250 may be reduced. The first trace 246 may be disposed at the edge of the circuit board 210 to ensure that the area of the generated second induced magnetic field 250 is not too small. After the setting of the first trace 246 is determined, the number of turns of the coil 242 is determined so that the second induced magnetic field 250 is better to reduce the first induced magnetic field 230. In other examples, the first trace forming the coil may also be disposed in the middle of the circuit board.

The circuit board can be arranged on the surface of the battery core in a stacking mode. For example, the circuit board may be adjacent to the battery cell, and it may also be understood that the circuit board may cover the surface of the battery cell, and the circuit board is directly stacked on the surface of the battery cell. The circuit board can be provided with a first bonding pad, the first bonding pad is connected to one end of the coil, and the first bonding pad is abutted to the negative electrode of the battery cell. The coil is connected with the cathode of the battery cell through the first bonding pad without being connected through other connecting pieces such as a lead, the distance between the coil and the battery cell is minimized, and the volume of the battery is minimized. The circuit board may be adhered to the battery core, for example, by a double-sided adhesive tape or other adhesive layer. The circuit board can also be installed on the battery cell in other ways, such as welding fixation, screw connection fixation and the like.

Referring to fig. 19, fig. 19 is a schematic diagram illustrating a seventh structure of a battery according to an embodiment of the present disclosure. The circuit board 210 is provided with a first connection end 2492 and a second connection end 2494 on a side away from the battery cell 226, the first connection end 2492 is connected to the second negative electrode 2264 through the coil 242 and serves as a negative electrode of the battery 220, and the second connection end 2494 is connected to the second positive electrode 2262 and serves as a positive electrode of the battery 220.

The circuit board 210 may cover the surface of the battery cell 226, and the first connection end 2492 and the second connection end 2494 on the circuit board 210 serve as positive and negative poles of the battery 220, and the first connection end 2492 and the second connection end 2494 are connected to and supply power to a load. The positions of the first connection end 2492 and the second connection end 2494 on the circuit board 210 can be set according to requirements, for example, the first connection end 2492 and the second connection end 2494 are set at two ends of the circuit board 210, or the first connection end 2492 and the second connection end 2494 are set at one end or in the middle of the circuit board 210 adjacently.

The first connection end 2492 and the second connection end 2494 may be configured as a metal sheet, a bonding pad, or an elastic sheet. The metal sheet may be a nickel sheet, a copper sheet or a metal sheet of other material. It is understood that, in order to better connect the battery to the external device, the first connection terminal and/or the second connection terminal may be provided with a connection member for convenient connection to the external device.

It is understood that the second positive electrode 2262 and the second negative electrode 2264 of the cell 226 may be disposed on one side of the cell 226 and then connected to the first connection end 2492 and the second connection end 2494 through a pad or a spring plate on the circuit board 210. A second positive electrode and a second negative electrode of the cell 226 may also be disposed on different sides of the cell 226, and then the second positive electrode and/or the second negative electrode are connected to the first connection end 2492 and the second connection end 2494 by wires or other connection structures.

Referring to fig. 20 and 21, fig. 20 is a schematic diagram of a fifth structure of a battery according to an embodiment of the present disclosure, and fig. 21 is an exploded view of the battery shown in fig. 20. The cell 226 can include a first end 228, and a second positive electrode 2262 and a second negative electrode 2264 are both disposed at the first end 228. The circuit board 210 is adjacent to the first end 228, the circuit board 210 has an opening, the opening exposes the second positive electrode 2262, the second positive electrode 2262 serves as a positive electrode of the battery 220, a first connection end 2492 is arranged on a side of the circuit board 210 away from the battery cell 226, the first connection end 2492 is connected to the second negative electrode 2264 of the battery cell 226 through the coil 242, and the first connection end 2492 serves as a negative electrode.

The first end 228 of the cell 226 may include a raised bump 2282 and a peripheral portion 2284 surrounding the bump 2282, the opening exposes the bump 2282, the second positive electrode is disposed on the bump 2282, and the second negative electrode is disposed on the peripheral portion 2284. The circuit board 210 may be an annular board, which exposes the protrusion 2282 in the middle of the battery cell 226 and covers the peripheral portion 2284 around the protrusion 2282, without affecting the shape of the battery cell 226 and the connection between the battery 220 and other devices.

It should be noted that the circuit board 210 may cover the second negative electrode 2264, one end of the coil on the circuit board 210 may be connected to the second negative electrode 2264, and the first connection end 2492 disposed at one end away from the battery cell 226 is used as a negative electrode of the battery, and the first connection end 2492 is connected to the other end of the coil. The first connecting end can be connected with the other end of the coil through a via hole in the circuit board.

The battery 220 may further include a first lead-out structure 262 and a second lead-out structure 264, the first lead-out structure 262 is connected to the second negative electrode through a coil, the second lead-out structure 264 is connected to the second positive electrode, and the battery may be conveniently connected to an external device through the first lead-out structure 262 and the second lead-out structure 264, so as to supply power to the external device. It is understood that the second lead-out structure can be selectively arranged according to requirements. For example, in some embodiments, the second lead-out structure may not be provided, and the external device may be directly powered through the second positive electrode on the bump in cooperation with the first lead-out structure.

It can be understood that the circuit board may have other shapes, and only an opening is required to be formed on the circuit board to expose the second positive electrode. For example, openings are formed on the side edges or corners of the circuit board.

The battery cell can include a first end face and a second end face, the first end face and the second end face are oppositely arranged or adjacently arranged, the second negative electrode is arranged on the first end face, and the second positive electrode is arranged on the second end face. The circuit board is adjacent to the first end face, and the coil is connected to the second negative electrode. The circuit board sets up on first terminal surface to coil on the circuit board is connected with the second negative pole, does not influence the second terminal surface and the second positive pole of battery, and when the battery was connected with external device, the second negative pole of electricity core passed through the coil of circuit board and is connected with external device, and the second positive pole of electricity core is not influenced, can directly be connected with external device. The first end face and the second end face may be two end faces opposite to the battery cell. And if the first end face and the second end face are the top end face and the bottom end face of the battery cell. Alternatively, the first end face and the second end face may also be two end faces adjacent to the battery cell. The first end face and the second end face can also be the top end face and the side edge end face of the battery cell.

The battery core in this embodiment can be used as a battery alone, and can also be packaged together with a circuit board having a coil to be used as a battery.

It will be appreciated that the thickness of the circuit board in the above embodiments is small. Illustratively, the circuit board may be a rigid circuit board, and the thickness of the rigid circuit board may be equal to or less than 0.4 mm. The circuit board may be a flexible circuit board, and the thickness of the flexible circuit board may be equal to or less than 0.1 mm.

Fig. 22 shows a first structural schematic diagram of an electronic device according to an embodiment of the present application, where fig. 22 is a specific flowchart of the electronic device. The electronic device 10 includes a load 40 and a battery 220, the battery 220 is connected to the load 40 and supplies power to the load 40, and the structure of the battery 220 may adopt the structure of the battery 220 in any of the above embodiments, which is not described herein again.

Referring to fig. 23, fig. 23 is a schematic view of a second structure of an electronic device according to an embodiment of the present application. The load 40 may be an electromagnetic device, and when the electromagnetic inductor 240 is disposed at the first position 320 in the first induced magnetic field 230 of the battery cell 226, the electromagnetic device is disposed at the second position 340 in the first induced magnetic field 230, so that after the second induced magnetic field 250 is superimposed with the first induced magnetic field 230, the magnetic field strength at the second position 340 in the first induced magnetic field 230 is weakened. The electromagnetic device may be an electromagnetic sensitive device, such as an electroacoustic device or an antenna.

It should be noted that the relative positions of the battery cell 226 and the electromagnetic inductor 240 in the drawing are only schematic diagrams, and the relative positions of the battery cell 226 and the electromagnetic inductor 240 may be adjusted as needed. For example, the battery cell and the electromagnetic inductor are separated by a certain distance, or the battery cell and the electromagnetic inductor are adjacently arranged, or the electromagnetic inductor is arranged between the battery cell and the load, or the electromagnetic inductor is arranged on the side of the battery cell away from the load.

The electroacoustic device can be a microphone, a loudspeaker and the like.

The electronic device can be an audio playing device such as an earphone and a sound box. The earphone comprises a battery, an electroacoustic device and the like, and considering that the size of the earphone is small, the battery is close to the electroacoustic device, the magnetic field of the battery easily influences the electroacoustic device, the interference of the electroacoustic device is caused, and noise is generated. After the coil is added to the battery, the magnetic field of the battery can be effectively reduced, so that the interference of the electroacoustic device is improved, and the noise of the electroacoustic device due to the magnetic field of the battery is reduced or eliminated. Similarly, the miniaturized sound box has similar problems, and a coil can be added to a battery of the miniaturized sound box, so that the magnetic field of the battery is effectively reduced, and the interference of an electroacoustic device is improved.

The electronic device may further include a device housing, the electroacoustic device and the battery both being disposed within the device housing. For the miniaturization of electroacoustic equipment, the volume of equipment casing is less, and electroacoustic device and battery are nearer, and if the magnetic field of battery is great, electroacoustic device is easily disturbed by magnetic field and produces the noise, and the battery in this embodiment effectively offsets the induced magnetic field of battery through electromagnetic induction body such as coil, and is less to electroacoustic device's influence, can improve or get rid of electroacoustic device because the noise that the induced magnetic field of battery produced.

The earphone in this embodiment can be the earphone of taking the battery certainly such as bluetooth headset, and the audio amplifier can be the audio amplifier of taking the battery certainly such as bluetooth speaker. It is understood that the electronic device may further include a wireless communication module to enable wireless communication, and the wireless communication module may acquire external information to control the electro-acoustic device. Such as controlling the electronic device to play audio, or controlling the electronic device to switch songs, etc.

Referring to fig. 24, fig. 24 is a schematic structural diagram of a battery in the electronic device shown in fig. 22. In some embodiments, the coil 242 may be provided with a plurality of connection points for connecting with the positive electrode or the negative electrode of the battery cell 226, or a plurality of connection points for connecting with the load 40, each connection point may be controlled by the switch 140, so as to achieve connection or disconnection between the connection point and the positive electrode or the negative electrode of the battery cell 226 and the load 40, and the second induced magnetic field generated by connecting the connection points with the positive electrode or the negative electrode of the battery cell 226 is different in magnitude. Combined magnetic field formula

The different connection points are understood to vary the value of r therein so as to cause the second induced magnetic field generated by the coil 242 to vary.

Different tie points are connected to the load to enable the coil to generate different second induction magnetic fields, and after the different second induction magnetic fields are superposed with the first induction magnetic field, the magnetic field strength of different positions of the first induction magnetic field is weakened, so that suitable tie points can be selected for external devices at different positions. For example, adjacent batteries in the electronic equipment are provided with a first external device and a second external device, the first external device and the second external device are arranged at different positions, and when the first external device works, a first connecting point of a coil is connected to a load, so that a second induced magnetic field generated by the coil completely offsets or reduces a first induced magnetic field generated by a battery cell at the first external device, and the electromagnetic radiation interference of the first external device is improved. When the second external device works, the second connection point of the coil is connected to the load, so that the second induced magnetic field generated by the coil completely offsets or reduces the first induced magnetic field generated by the battery cell at the second external device, and the electromagnetic radiation interference of the second external device is improved.

For another example, the preset position where the second induced magnetic field counteracts the first induced magnetic field can be changed by adjusting the connection point, different connection points correspond to different preset positions, and the magnetic field intensity of the first induced magnetic field can be significantly weakened by the second induced magnetic field at the preset position. Corresponding to electronic equipment of different shapes, can change the preset position through adjusting the tie point, the preset position can be used for setting up electromagnetic sensitive device such as loudspeaker, microphone etc.. Different electronic equipment sets up the position difference of electric core and electromagnetic sensitive device because the appearance restriction, can adapt to the electronic equipment of different appearances through selecting different tie points, perhaps can change the position that sets up of electromagnetic sensitive device in same electronic equipment, makes things convenient for the position setting and the adjustment of different devices in the electronic equipment.

In addition, the first induction field that electric core produced can be offset at the position of predetermineeing to the second induction field that the coil began to produce, but considers that the ageing degree of electric core and coil is different, can select different tie points according to the length of time of using to even electric core uses for a long time the back, still can make the magnetic field intensity of predetermineeing the position very little, can not cause because of the ageing degree difference of electric core and coil, at the difference grow gradually of the first induction field of predetermineeing the position and second induction field.

The coil may comprise a plurality of sub-turns, each sub-turn being a turn, and the connection points may be provided on different sub-turns. Each tie point all is connected through a control line, and the control line is connected with the switch, and switch and coil interval set up, and the switch can not influence the coil. For example, the switch is disposed on a circuit board on which the load is located. For another example, a circuit board is arranged at an interval with both the battery core and the coil, a switch group is arranged on the circuit board, the switch group is connected with the control lines, and one of the control lines is selected to be connected with the coil, so that the number of sub-coils of the coil is changed. The switch can be a single-pole single-throw switch, a single-pole multi-throw switch or the like, and can also be a field effect transistor or the like.

It is understood that the circuit structure, the coil in the battery or the battery assembly in any of the above embodiments may adopt a structure in which the coil includes a plurality of connection points in this embodiment, and details thereof are not described herein.

The present embodiment further provides an electronic device, specifically referring to fig. 25, and fig. 25 is a schematic view of a third structure of the electronic device according to the embodiment of the present application. The electronic device 10 includes a load 40 and a circuit structure, the circuit structure is connected to the load 40 and supplies power to the load 40, and the structure of the circuit structure may adopt the structure of the circuit structure in any of the above embodiments, which is not described herein again.

The load 40 is an electromagnetic device, such as an electroacoustic device or an antenna, and when the electromagnetic inductor 240 is disposed at the first position 320 in the first induced magnetic field 230 of the battery 220, the electromagnetic device is disposed at the second position 340 in the first induced magnetic field 230, so that after the second induced magnetic field 250 is superimposed on the first induced magnetic field 230, the magnetic field strength at the second position 340 in the first induced magnetic field 230 is weakened.

It should be noted that the relative positions of the battery 220 and the electromagnetic inductor 240 in the drawing are only schematic diagrams, and the relative positions of the battery 220 and the electromagnetic inductor 240 can be adjusted as needed. For example, the battery and the electromagnetic inductor are spaced apart, or the battery and the electromagnetic inductor are disposed adjacently, or the electromagnetic inductor is disposed between the battery and the load, or the electromagnetic inductor is disposed on a side of the battery facing away from the load.

The coil in this embodiment may be provided with a plurality of connection points for connecting with the positive electrode or the negative electrode of the electric core, or a plurality of connection points may be connected with the load, each connection point may be controlled by a switch for realizing the connection or disconnection between the connection point and the positive electrode or the negative electrode of the electric core and the load, and the second induced magnetic fields generated when the different connection points are connected with the positive electrode or the negative electrode of the electric core are different in size. The specific structure of the battery can refer to the structure of the above embodiments, and is not described herein.

It can be understood that, in addition to the devices such as the earphone and the sound box, the electronic device in this embodiment may also be a mobile phone, a tablet computer, an audio player, a video player, an Augmented Reality (AR) device, a Virtual Reality (VR) device, and the like.

Referring to fig. 26, fig. 26 is a schematic flow chart of a method for manufacturing a battery according to an embodiment of the present application. The battery comprises a battery core; the method comprises the following steps:

501, acquiring a first induction magnetic field of a battery cell;

502, calculating to obtain a second induced magnetic field according to the first induced magnetic field, wherein after the second induced magnetic field is superposed with the first induced magnetic field, the magnetic field strength of the first induced magnetic field is weakened;

503, obtaining parameters of the electromagnetic inductor to be installed according to the second induction magnetic field;

and 504, installing corresponding electromagnetic inductors according to the parameters.

The first induction magnetic field of the battery core can be obtained firstly, then the second induction magnetic field is obtained through calculation according to the first induction magnetic field, the purpose of the second induction magnetic field is that the magnetic field intensity of the first induction magnetic field can be weakened after the second induction magnetic field is superposed with the first induction magnetic field, parameters of an electromagnetic inductor generating the second induction magnetic field can be calculated after the second induction magnetic field is obtained through calculation, such as the material and the size of the second induction magnetic field, the distance between the second induction magnetic field and the battery core and the like, and then a proper electromagnetic inductor is selected according to the parameters and installed.

When the second induction magnetic field is a coil, the parameters of the electromagnetic inductor generating the second induction magnetic field are calculated and further comprise the number of turns, the diameter, the thickness of the coil and the like of the coil.

It can be understood that the preset position where the magnetic field strength of the first induction magnetic field needs to be weakened can be obtained in advance before the electromagnetic inductor is installed, the preset position can be used for installing electromagnetic sensitive devices such as electroacoustic devices, antennas and the like, and then the second induction magnetic field is obtained through calculation according to the preset position of the first induction magnetic field core.

It is understood that the method of manufacturing the battery in this embodiment may be made into a battery pack or a battery in any of the above embodiments. The method for manufacturing a battery in this embodiment may further include other steps to manufacture and form the battery assembly or the battery in any of the above embodiments, which are not described herein again. For example, the coil may be connected to the positive electrode or the negative electrode of the battery cell, or a current detector may be provided, or the battery cell and the coil may be packaged in the same casing, or a plurality of connection points may be provided on the coil, or the like.

The circuit structure, the battery, the electronic device, and the method for manufacturing the battery according to the embodiments of the present application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A circuit structure, comprising:

2. The circuit structure of claim 1, wherein the magnetic field strength of the first induced magnetic field is weakened after the second induced magnetic field is superimposed with the first induced magnetic field.

3. The circuit structure of claim 1, wherein the electromagnetic inductor is disposed at a first location within the first induced magnetic field such that the magnetic field strength at a second location within the first induced magnetic field is weakened when the second induced magnetic field is superimposed with the first induced magnetic field.

4. The circuit structure according to any one of claims 1 to 3, wherein the electromagnetic inductor is a coil, and the coil is connected to the first positive electrode or the first negative electrode.

5. The circuit structure of claim 4, wherein the coil is formed from a first trace etched on a circuit board.

6. The circuit structure according to any one of claims 1 to 3, further comprising a current detector connected to the electromagnetic inductor;

the current detector detects a first current in the electric core and adjusts a second current in the electromagnetic inductor according to the first current, wherein the electric core generates the first induced magnetic field according to the first current, and the electromagnetic inductor generates a second induced magnetic field according to the second current.

7. A battery, comprising:

a first positive electrode;

a first negative electrode;

8. The battery of claim 7, further comprising a housing, wherein the core and the electromagnetic inductor are encapsulated within the housing.

9. The battery of claim 8, wherein the battery core comprises a second positive electrode and a second negative electrode, the electromagnetic inductor is a coil, one end of the coil is connected to the second positive electrode, and the other end of the coil is connected to the first positive electrode; or one end of the coil is connected to the second negative electrode, and the other end of the coil is connected to the first negative electrode.

10. The battery of claim 9, wherein the cell is a wound cell, and the coil is disposed at one end of the cell and parallel to an end surface of the cell.

11. The battery of claim 10, further comprising an insulating layer disposed between the cell and the coil.

12. The battery of claim 7, further comprising a protective member, wherein the electromagnetic inductor is disposed within the protective member, and wherein the protective member abuts the cell.

13. The battery of claim 7, wherein the magnetic field strength of the first induced magnetic field is weakened when the second induced magnetic field is superimposed on the first induced magnetic field.

14. The battery of claim 7, wherein the electromagnetic inductor is disposed at a first location within the first induced magnetic field such that the magnetic field strength at a second location within the first induced magnetic field is attenuated upon superposition of the second induced magnetic field with the first induced magnetic field.

15. The battery of claim 7, further comprising a circuit board, wherein the electromagnetic inductor is disposed on the circuit board.

16. The battery of claim 15, wherein the circuit board has a first trace formed by etching, the first trace forming the electromagnetic inductor.

17. The battery of claim 15, wherein the circuit board is stacked on a surface of the cell.

18. An electronic device, comprising:

a load; and

circuit arrangement or battery, which is connected to the load and supplies the load, as claimed in any of claims 1 to 6, or as claimed in any of claims 7 to 17.

19. The electronic device of claim 18, wherein the load is an electromagnetic device, and wherein when the electromagnetic inductor is disposed at a first position within the first induced magnetic field, the electromagnetic device is disposed at a second position within the first induced magnetic field, such that the magnetic field strength at the second position within the first induced magnetic field is weakened when the second induced magnetic field is superimposed with the first induced magnetic field.