Magnetic coil unit, magnetic coil unit preparation method, magnetic field generation device and magnetic field treatment equipment
By designing stacked multi-layer planar helical coils and connecting them with magnetic coil units that have the same winding direction, the shortcomings of existing magnetic coils in terms of space utilization efficiency are solved, thereby achieving enhanced magnetic field strength and reduced size.
Patent Information
- Application Number
- CN202511309151.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2025-10-17
AI Technical Summary
Existing magnetic coils, such as solenoids and toroidal coils, are inefficient in terms of space utilization. Solenoids have a hollow center and are quite long, while the magnetic field of toroidal coils cannot be used as a basic unit for transmission.
A magnetic coil unit is designed by stacking N layers of planar spiral coils in sequence along a first direction. Each layer of coils is wound in the same direction and connected by a conductor to form a multi-layer planar spiral coil superimposed magnetic field, thereby enhancing the magnetic field strength.
While generating the same magnetic field strength in the same spatial location, the volume of the magnetic coil unit is reduced by tens of times, improving space utilization and magnetic field strength.
Smart Images
Figure CN120809457A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of wireless electromagnetic energy transmission, and in particular to a magnetic coil unit, a magnetic coil unit preparation method, a magnetic field generating device and a magnetic field treatment device. BACKGROUND
[0002] Magnetic field is a common energy field in life. Magnetic coil is usually a basic unit for people to build to emit magnetic field. For magnetic coil, the magnetic field distribution generated after the coil is energized needs to be in a known form and as simple as possible for people to use. At the same time, the volume of the magnetic coil needs to meet the requirements of a specific scene.
[0003] The existing magnetic coil for generating magnetic field includes solenoid and toroidal coil. The solenoid is a commonly used form of magnetic coil, which is composed of a wire around a cylinder and essentially composed of a plurality of circular conductive wires. Due to the consistency of the magnetic field direction, the solenoid has a superposition effect, thereby forming the magnetic field of the solenoid. However, the solenoid itself has a limited space utilization efficiency, and the center is hollow, so the solenoid is often relatively long. The toroidal coil is a coil wound on a toroidal core, and its magnetic field is completely enclosed in the ring, which cannot be used as a basic unit for emitting magnetic field. SUMMARY
[0004] To solve the above technical problems, the present application provides a magnetic coil unit, and the specific technical solutions are as follows:
[0005] In a first aspect, the present application provides a magnetic coil unit, comprising: N layers of planar spiral coils stacked in sequence along a first direction, each layer of planar spiral coil is wound by a wire in a clockwise direction or a counterclockwise direction, N is greater than or equal to 2, wherein the wire of each layer of planar spiral coil comprises a starting end and a terminal end, the terminal end of each layer of planar spiral coil is connected to the starting end of the next layer of planar spiral coil through a conductor, the winding direction of each layer of planar spiral coil from the starting end to the terminal end is the same, and the starting end and the terminal end are located at the center position and the edge position of the planar spiral coil respectively.
[0006] Optionally, the value of N ranges from 2 to 100.
[0007] Optionally, the number of windings of each layer of planar spiral coil ranges from 2 to 40.
[0008] Optionally, the diameter of the wire ranges from 0.2mm to 6mm.
[0009] Optionally, the exposed end of the wire of the first layer of planar spiral coil stacked along the first direction is adapted to be connected to the cathode of the power supply, and the exposed end of the wire of the Nth layer of planar spiral coil stacked along the first direction is adapted to be connected to the anode of the power supply.
[0010] Optionally, the N layers of planar spiral coils comprise N wires, wherein each layer of planar spiral coil is wound by one wire.
[0011] Optionally, the number of windings of each layer of planar spiral coil is the same.
[0012] In a second aspect, the application provides a method for preparing a magnetic coil unit, comprising: winding a wire on a plane in a clockwise direction or in a counterclockwise direction for several turns to obtain a planar spiral coil, the wire of each layer of planar spiral coil comprising a starting end and a terminal end, the starting end and the terminal end being located at a central position and an edge position of the planar spiral coil respectively; stacking the N layers of planar spiral coils in a first direction in turn, and connecting the terminal end of each layer of planar spiral coil and the starting end of the next layer of planar spiral coil by a conductor to obtain a magnetic coil unit, wherein N is greater than or equal to 2, and the winding direction of each layer of planar spiral coil from the starting end to the terminal end is the same.
[0013] Optionally, the number of windings of the planar spiral coil ranges from 2 turns to 40 turns.
[0014] Optionally, N ranges from 2 to 100.
[0015] Optionally, the diameter of the wire ranges from 0.2 mm to 6 mm.
[0016] Optionally, the number of windings of each layer of planar spiral coil is the same.
[0017] In a third aspect, the application provides a magnetic field generating device comprising the magnetic coil unit of any one of the first aspect.
[0018] In a fourth aspect, the application provides a magnetic field therapy device comprising the magnetic field generating device of the third aspect and a signal generator, the signal generator being configured to provide an electrical signal to the magnetic field generating device.
[0019] The magnetic coil unit, the method for preparing a magnetic coil unit, the magnetic field generating device and the magnetic field therapy device provided by the application have the following technical effects: by connecting the multiple layers of planar spiral coils placed in a stack, and by the winding direction of each layer of planar spiral coil from the starting end to the terminal end being the same, the flow direction of the current in each layer of planar spiral coil is the same when energized, and thus the magnetic fields generated by the layers of planar spiral coil are superimposed on each other, increasing the magnetic field strength. Compared with the existing solenoid magnetic coil unit, the volume of the magnetic coil unit of the application can be reduced by tens of times to generate the same magnetic field strength in the same space position. BRIEF DESCRIPTION OF DRAWINGS
[0020] The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this application, illustrate embodiments of the application, and together with the description serve to explain the principles of the application. In the drawings:
[0021] Figure 1 is a schematic diagram of an existing solenoid 10;
[0022] Figure 2 is a schematic diagram of an existing toroidal coil 20;
[0023] Figure 3 is an example diagram of a magnetic coil unit 30 provided by the present application;
[0024] Figure 4 is an example diagram of a magnetic coil unit 30' provided by the present application;
[0025] Figure 5 is a flowchart of a magnetic coil unit manufacturing method 40 provided by the present application;
[0026] Figure 6 is a structural block diagram of a magnetic field therapy device 50 provided by the present application.
[0027] Reference Signs:
[0028] Solenoid: 10;
[0029] Toroidal coil: 20;
[0030] Magnetic coil unit: 30;
[0031] First planar spiral coil: 31;
[0032] Second planar spiral coil: 32;
[0033] Conductor: 33;
[0034] Starting end: 34;
[0035] Termination end: 35;
[0036] Third planar spiral coil: 36. DETAILED DESCRIPTION
[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some examples or embodiments of the present application, and for those skilled in the art, the present application can also be applied to other similar scenarios without creative labor on the basis of these drawings. Unless it is obvious from the language environment or otherwise stated, the same reference numbers in the drawings represent the same structure or operation.
[0038] As used in the description of the application and the claims the words "including" and "comprising" and the like mean "including without limitation," "comprising without limitation," and so forth, unless otherwise expressly specified herein.
[0039] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the application unless otherwise specifically stated. It is to be understood that the drawings are not necessarily to scale as the dimensions of the parts shown are for the purpose of illustration and description only and not to limit the scope of the application. Techniques, methods, and apparatus known to those of ordinary skill are not discussed in detail but are to be considered part of the specification as described herein. In all examples shown and discussed herein, any specific values are to be interpreted as merely illustrative and not as a limitation on the scope of the exemplary embodiments. Thus, other examples of the exemplary embodiments can have different values. It is to be noted that like numbers and letters refer to like elements throughout the several views of the drawings and that, while the same reference numbers may
[0040] In the description of the application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", and "top", "bottom" are generally based on the orientation or positional relationships shown in the drawings, and are used only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be understood as limiting the scope of protection of the application; the orientation terms "inner", "outer" refer to the inner and outer relative to the contour of the parts themselves.
[0041] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0042] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is solely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. Furthermore, while the terms used in this application are selected from commonly known and commonly used terms, some terms mentioned in this specification may have been selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant sections of this description. Furthermore, this application should be understood not only by the actual terms used, but also by the meaning implied by each term.
[0043] Figure 1 This is a schematic diagram of an existing solenoid 10. The solenoid 10 is a commonly used magnetic coil. It is composed of a wire wrapped around a cylinder. In essence, it is composed of circular current-carrying wires. Due to the consistency of the magnetic field direction, a superposition effect is brought about, thereby forming the magnetic field of the solenoid 10. The magnetic field generated by the solenoid 10 is as follows: Figure 1 As shown, the shape of the emitted magnetic field can be determined and is relatively simple. However, the center of the solenoid 10 is hollow and the solenoid 10 is often relatively long, so the efficiency of space utilization is very limited. Figure 2 The diagram is a schematic diagram of an existing toroidal coil 20. The toroidal coil 20 is a wire wound around a toroidal magnetic core. Its magnetic field is completely enclosed within the ring. Therefore, it cannot be used as a basic unit for emitting a magnetic field.
[0044] To solve the above problems, the application provides a magnetic coil unit, comprising: N layers of planar spiral coils placed in sequence along a first direction, N being greater than or equal to 2, each layer of planar spiral coil being formed by winding a wire in a clockwise direction or in an anticlockwise direction. And the wire of each layer of planar spiral coil comprises a starting end and a terminal end, the terminal end of each layer of planar spiral coil is connected to the starting end of the next layer of planar spiral coil through a conductor, the winding direction of each layer of planar spiral coil from the starting end to the terminal end is the same, and the starting end and the terminal end are located at the central position and the edge position of the planar spiral coil respectively. It should be noted that the first direction can be a vertical direction, a horizontal direction, or an inclined direction having an angle with the vertical direction, and the first direction is set according to actual needs and is not limited specifically. In the embodiment, preferably, the value range of N is 2-100.
[0045] Figure 3 A specific embodiment is shown, Figure 3 A schematic diagram of the magnetic coil unit 30 is shown. The magnetic coil unit 30 comprises two layers of planar spiral coils placed in sequence along a first direction, i.e. the x direction: a first planar spiral coil 31 and a second planar spiral coil 32. The first planar spiral coil 31 and the second planar spiral coil 32 have corresponding starting ends 34 and terminal ends 35 respectively, and the starting ends 34 and the terminal ends 35 are located at the central position and the edge position of the planar spiral coil respectively. Specifically, the starting end 34 of the first planar spiral coil 31 is located at the edge position of the first planar spiral coil 31, and the terminal end 35 of the first planar spiral coil 31 is located at the central position of the first planar spiral coil 31. In contrast, the starting end 34 of the second planar spiral coil 32 is located at the neutral position of the second planar spiral coil 32, and the terminal end 35 of the second planar spiral coil 32 is located at the edge position of the second planar spiral coil 32.
[0046] In addition, the winding direction of each layer of planar spiral coil from the starting end to the terminal end is the same. Specifically, from the x direction, the first planar spiral coil 31 is wound by the wire from the corresponding starting end 34 to the corresponding terminal end 35 (i.e. from outside to inside) in a clockwise direction, and the second planar spiral coil 32 is wound by the wire from the corresponding starting end 34 to the corresponding terminal end 35 (i.e. from inside to outside) in a clockwise direction. Alternatively, from the opposite direction of the x direction, the first planar spiral coil 31 is wound by the wire from the corresponding starting end 34 to the corresponding terminal end 35 (i.e. from outside to inside) in an anticlockwise direction, and the second planar spiral coil 32 is wound by the wire from the corresponding starting end 34 to the corresponding terminal end 35 (i.e. from inside to outside) in an anticlockwise direction.
[0047] In this embodiment, each layer of the planar spiral coil is preferably wound by a wire. Preferably, the diameter of the wire ranges from 0.2 mm to 6 mm. Preferably, the number of windings of each layer of the planar spiral coil ranges from 2 to 40. It should be noted that, for ease of understanding, Figure 3 There is a gap between each turn of the wire in the planar spiral coil shown in FIG. 1 . In actual application, each turn of the wire is closely connected, which further reduces the spatial volume of the magnetic coil unit 30 and improves space utilization.
[0048] like Figure 3 As shown, the terminating end 35 of the first planar spiral coil 31 is connected to the starting end 34 of the adjacent second planar spiral coil 32 via a conductor 33. Furthermore, neither the starting end 34 of the first planar spiral coil 31 nor the terminating end 35 of the second planar spiral coil 32 requires a corresponding planar spiral coil. Therefore, the starting end 34 of the first planar spiral coil 31 is suitable for connection to the cathode of a power supply, while the terminating end 35 of the second planar spiral coil 32 is suitable for connection to the anode of the power supply, so that current enters the magnetic coil unit 30. When current I flows from the starting end 34 of the first planar spiral coil 31 and out of the terminating end 35 of the second planar spiral coil 32, the direction of the current in the first planar spiral coil 31 is the same as the direction of the current in the second planar spiral coil 32. The magnetic fields generated by the first planar spiral coil 31 and the second planar spiral coil 32 are superimposed, thereby increasing the overall magnetic field strength of the magnetic coil unit 30. In this embodiment, each layer of planar spiral coils preferably has the same number of turns, thereby generating the same magnetic field. This allows the magnetic fields of each layer to be effectively and fully superimposed, further enhancing the overall magnetic field strength of the magnetic coil unit. It should be noted that in some embodiments, when the magnetic coil unit 30 includes N layers of planar spiral coils, and N is greater than 2, the starting end of the first layer of planar spiral coils and the ending end of the Nth layer of planar spiral coils stacked sequentially along the first direction are adapted to be connected to the anode and cathode of a power supply, respectively.
[0049] It should be noted that the present application does not limit the number of planar spiral coils in the magnetic coil unit. Figure 4The shown magnetic coil unit 30' further comprises a third planar spiral coil 36 adjacent to the second planar spiral coil 32 on the basis of the above-mentioned first planar spiral coil 31 and the second planar spiral coil 32. The third planar spiral coil 36 has the same structure as the first planar spiral coil 31 and the second planar spiral coil 32, and also has a starting end 34 and a terminal end 35. When the magnetic coil unit 30' is viewed from the x direction, the third planar spiral coil 36 is wound by the wire from the corresponding starting end 34 to the corresponding terminal end 35 (i.e. from outside to inside) in the clockwise or counterclockwise direction. In addition, the second planar spiral coil 32 and the adjacent third planar spiral coil 36 are also connected by the conductor 33. Specifically, the terminal end 35 of the second planar spiral coil 32 and the starting end 34 of the adjacent third planar spiral coil 37 are connected by the conductor 33. It can be understood that the starting end 34 of the first planar spiral coil 31 and the terminal end 35 of the third planar spiral coil 36 in the magnetic coil unit 30' are adapted to be connected to the anode and the cathode of the power supply, respectively.
[0050] The magnetic coil unit provided by the present application connects the multiple layers of planar spiral coils placed in sequence, and the winding direction of each layer of planar spiral coil from the starting end to the terminal end is the same, so that the flow direction of the current in each layer of planar spiral coil is the same when energized, and the magnetic fields generated by each layer of planar spiral coil are superimposed on each other, thereby increasing the magnetic field strength. Compared with the existing solenoid magnetic coil unit, the volume of the magnetic coil unit of the present application can be reduced by tens of times to generate the same magnetic field strength in the same space position.
[0051] Referring to Figure 5 A flow chart of a magnetic coil unit preparation method 40 provided by the present application is shown below, and the specific process is as follows:
[0052] Step 401: winding the wire on a plane in the clockwise direction or in the counterclockwise direction for several turns to obtain a planar spiral coil. The wire of each layer of planar spiral coil includes a starting end and a terminal end, and the starting end and the terminal end are located at the center position and the edge position of the planar spiral coil, respectively.
[0053] Step 402: sequentially stack N layers of planar spiral coils in a first direction, and connect the terminal end of each layer of planar spiral coil with the starting end of the next layer of planar spiral coil through a conductor to obtain a magnetic coil unit, wherein N is greater than or equal to 2, and the winding direction of each layer of planar spiral coil from the starting end to the terminal end is the same. In some embodiments, the number of turns of the planar spiral coil is in the range of 2 turns to 40 turns, in some embodiments, N is in the range of 2 to 100, in some embodiments, the diameter of the wire is in the range of 0.2 mm to 6 mm, and in some embodiments, the number of turns of each layer of planar spiral coil is the same. It should be noted that in some embodiments, the conductor is the same as the wire, and the entire magnetic coil unit is integrally formed by a wire. Correspondingly, in the corresponding magnetic coil unit preparation method, a wire is also sequentially wound in a predetermined direction to sequentially form each planar spiral coil.
[0054] Referring to Figure 6 The application also provides a magnetic field treatment device 50, which comprises a magnetic field generating device 51 and a signal generator 52. The magnetic field generating device 51 comprises one or more magnetic coil units 30 described above. The signal generator 52 comprises a power supply 521, a signal transmitter 522, a signal amplifier 523 and a signal storage 524. The signal storage 524 stores an electrical signal waveform, which can be extracted and loaded into the signal transmitter 522 to generate an electrical signal with a certain amplitude and delivered to the signal amplifier 523. After passing through the signal amplifier 523, the electrical signal amplitude reaches the required requirement for exciting a magnetic field with a certain intensity, and is delivered to each magnetic coil unit 30 in the magnetic field generating device 51.
[0055] The above description has described the basic concept, and it is obvious that the above application disclosure is only used as an example and does not constitute a limitation on the application. Although it is not explicitly stated here, those skilled in the art can make various modifications, improvements and corrections to the application. Such modifications, improvements and corrections are suggested in the application, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the application.
[0056] At the same time, specific words are used in the application to describe the embodiments of the application. As "one embodiment", "an embodiment", and / or "some embodiments" means a certain feature, structure or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that the "an embodiment" or "one embodiment" or "an alternative embodiment" mentioned in different places in the specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the application can be properly combined.
[0057] For simplicity and to help with understanding of one or more embodiments of the application, the description of embodiments of the application above sometimes refers to a combination of features in one embodiment, drawing, or description of an embodiment. This method of disclosure is not to be interpreted as reflecting an intention that the application requires more features than are explicitly mentioned in each claim. Indeed, reference to
[0058] Some embodiments use numerals to describe components, quantities of attributes. It should be understood that such numerals used in the description of embodiments are, in some examples, modified by the adjectives "about," "approximately," or "substantially." Unless otherwise stated, "about," "approximately," or "substantially" indicate that the described numeral can vary ±20%. Accordingly, numerical parameters in the description and claims are approximations, and thus can vary depending upon the requirements of the particular embodiments. In some embodiments, numerical parameters are provided as approximations that can vary depending on the desired properties sought to be obtained by the particular embodiments. In some embodiments, numerical parameters are determined by the limitations inherent in the various components used to practice the embodiments. Although the numerical ranges and parameters setting forth the broadest scope of the embodiments of the application are approximations, the numerical values set forth in the specific examples are reported as precisely as practicable. The numerical values set forth in the specific examples are provided to be as precise as practicable.
[0059] Although the application has been described with reference to the current embodiments, persons having ordinary skill in the art will recognize that changes can be made in form and detail without departing from the spirit and the scope of the application. Therefore, the disclosed embodiments should be considered in all respects as illustrative and not restrictive, and all changes coming within the meaning and equivalency range of the appended claims are intended to be embraced therein.
Claims
1. A magnetic coil unit, characterized in that: include: N layers of planar spiral coils are stacked in sequence along a first direction, each layer of the planar spiral coils is formed by winding a wire in a clockwise direction or a counterclockwise direction, and N is greater than or equal to 2. The conductive wire of each layer of the planar spiral coil includes a starting end and an ending end. The ending end of each layer of the planar spiral coil is connected to the starting end of the planar spiral coil of the next layer via a conductor. The winding direction of each layer of the planar spiral coil from the starting end to the ending end is the same. The starting end and the ending end are located at the center and edge of the planar spiral coil, respectively.
2. The magnetic coil unit according to claim 1, wherein The value range of N is 2~100.
3. The magnetic coil unit according to claim 1, wherein The number of winding turns of each layer of the planar spiral coil ranges from 2 turns to 40 turns.
4. The magnetic coil unit according to claim 1, wherein: The diameter of the wire ranges from 0.2 mm to 6 mm.
5. The magnetic coil unit according to claim 1, wherein The starting end of the first layer of planar spiral coils stacked along the first direction is suitable for connecting to the cathode of a power supply, and the ending end of the Nth layer of planar spiral coils stacked along the first direction is suitable for connecting to the anode of the power supply.
6. The magnetic coil unit according to any one of claims 1 to 5, characterized in that: The N-layer planar spiral coil includes N wires, wherein each layer of the planar spiral coil is formed by winding one wire.
7. The magnetic coil unit according to any one of claims 1 to 5, characterized in that: The number of winding turns of each layer of the planar spiral coil is the same.
8. A method for preparing a magnetic coil unit, characterized in that: include: Winding a conductive wire several times in a clockwise or counterclockwise direction on a plane to obtain a planar spiral coil, wherein the conductive wire of each layer of the planar spiral coil includes a starting end and an ending end, wherein the starting end and the ending end are respectively located at a center position and an edge position of the planar spiral coil; N layers of the planar spiral coils are stacked in sequence along a first direction, and the terminating end of each layer of the planar spiral coils is connected to the starting end of the next layer of the planar spiral coils via a conductor to obtain the magnetic coil unit. Wherein, N is greater than or equal to 2, and the winding direction of each layer of the planar spiral coil from the starting end to the ending end is the same.
9. The method according to claim 8, wherein The number of winding turns of the planar spiral coil ranges from 2 turns to 40 turns.
10. The method according to claim 8, wherein The value range of N is 2~100.
11. The method according to claim 8, wherein The diameter of the wire ranges from 0.2 mm to 6 mm.
12. The method according to any one of claims 8 to 11, characterized in that The number of winding turns of each layer of the planar spiral coil is the same.
13. A magnetic field generating device, characterized in that: The magnetic coil unit comprises the magnetic coil unit according to any one of claims 1 to 7.
14. A magnetic field therapy device, characterized in that: It comprises the magnetic field generating device according to claim 13 and a signal generator, wherein the signal generator is used to provide an electrical signal to the magnetic field generating device.