WO2023098594A1 - Dispositif magnétique plan et procédé de câblage - Google Patents

Dispositif magnétique plan et procédé de câblage Download PDF

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Publication number
WO2023098594A1
WO2023098594A1 PCT/CN2022/134460 CN2022134460W WO2023098594A1 WO 2023098594 A1 WO2023098594 A1 WO 2023098594A1 CN 2022134460 W CN2022134460 W CN 2022134460W WO 2023098594 A1 WO2023098594 A1 WO 2023098594A1
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Prior art keywords
distance
air gap
loss
coil winding
line width
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PCT/CN2022/134460
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English (en)
Chinese (zh)
Inventor
廖胜峰
任文
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广州视源电子科技股份有限公司
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Publication of WO2023098594A1 publication Critical patent/WO2023098594A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/14—Constrictions; Gaps, e.g. air-gaps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding

Definitions

  • the present disclosure relates to the field of electronics, in particular, to a planar magnetic device and a wiring method.
  • FIG. 1 is a schematic diagram of a magnetic flux trend according to the prior art. As shown in Figure 1, an air gap is generally opened on the magnetic core to store large magnetic flux energy, the main magnetic flux 111 passing through the magnetic core, and the diffusion magnetic flux 222 that diffuses into the window, passing through the magnetic columns
  • the bypass magnetic flux 333 is the bypass magnetic flux 333.
  • the magnetic flux is a closed curve
  • some magnetic force lines will disperse into the core window, and the diffuse magnetic flux 222 will cut the winding coil placed in the window, and the winding coil An alternating current is fed inside, causing the alternating current to cut the magnetic field lines of the diffused magnetic flux 222 , resulting in loss.
  • the larger the air gap the more diffused magnetic flux, resulting in greater loss.
  • Embodiments of the present disclosure provide a planar magnetic device and a wiring method, so as to at least solve the technical problem of high loss in the existing planar magnetic device.
  • a planar magnetic device including: a side column, a first air gap is provided on the side column; a middle column, parallel to the side column, a second air gap is provided on the center column;
  • the coil windings are wound on the center column, and the coil windings close to the first air gap or the second air gap have a small line width, and the coil windings far away from the first air gap and the second air gap have a large line width.
  • the first line width of the coil winding wound at the first position is smaller than the second line width of the coil winding wound at the second position, wherein the first distance between the first position and the second air gap is smaller than the distance between the second position and the second air gap.
  • the second distance of the second air gap is smaller than the first distance between the first position and the second air gap.
  • the line width is determined based on the first distance between the coil winding and the first air gap, the second distance between the coil winding and the second air gap, the current flowing through the coil winding, and the loss of the planar magnetic device.
  • the line width is determined based on the first distance, current and loss; when the first distance is greater than the second distance, the line width is determined based on the second distance, current and loss Sure.
  • the first air gap and the second air gap are set opposite to each other.
  • a wiring method which is applied to any of the above-mentioned planar magnetic devices.
  • the wiring method includes: obtaining the current flowing through the coil winding, and the loss of the planar magnetic device; based on the current and Loss, determine the line width of the coil winding at different positions on the center column; wind the coil winding on the center column according to the line width at different positions.
  • determining the line width of the coil winding at different positions on the center column includes: determining multiple positions where the coil winding is wound on the center column; determining a first distance between each position and the first air gap, The second distance between each position and the second air gap; solving the objective function based on the first distance or the second distance, current and loss, to obtain line widths at different positions.
  • solving the objective function based on the first distance or the second distance, current and loss, and obtaining the line width at different positions includes: in response to the first distance being smaller than the second distance, solving the objective function based on the first distance, current and loss, Get the line width at different positions.
  • solving the objective function based on the first distance or the second distance, current and loss, and obtaining the line width at different positions includes: in response to the first distance being greater than the second distance, solving the objective function based on the first distance, current and loss, Get the line width at different positions.
  • the wiring method further includes: obtaining the product of the resistivity of the coil winding, the square of the current and the skin effect coefficient to obtain the first product, and obtaining the ratio of the first product to the line width to obtain the skin effect loss function; Obtain the product of the line width, resistivity, number of turns of the coil winding, the square of the current, and the proximity effect coefficient to obtain the second product, and obtain the ratio of the second product to the square of the first distance or the second distance to obtain the proximity effect loss Function; obtain the weighted sum of the skin effect loss function and the proximity effect loss function to obtain the objective function.
  • a wiring device which is applied to any of the above-mentioned planar magnetic devices, and the device includes: an acquisition component, configured to acquire the current flowing through the coil winding, and the loss of the planar magnetic device ;Determination component, set to determine the line width of the coil winding at different positions on the center column based on current and loss; winding component, set to wind the coil winding on the center column according to the line width at different positions.
  • non-volatile storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing any one of the above wiring methods step.
  • an electronic device including: a processor and a memory; wherein, the memory stores a computer program, and the computer program is suitable for being loaded by the processor and executing any one of the above wiring method steps .
  • a planar magnetic device comprising: a side column, a first air gap is provided on the side column; a middle column, parallel to the side column, a second air gap is provided on the center column; a coil winding , wound on the central column, and the coil winding near the first air gap or the second air gap has a small line width, and the coil winding far away from the first air gap and the second air gap has a large line width.
  • the windings close to the air gap can appropriately reduce the line width, while the windings away from the air gap can appropriately increase the line width, achieving the technical effect of effectively reducing the total AC loss, and then solving the existing The technical problem of large loss in planar magnetic devices.
  • Fig. 1 is a schematic diagram of a magnetic flux trend according to the prior art
  • FIG. 2 is a schematic diagram of a planar magnetic device according to the prior art
  • FIG. 3 is a schematic diagram of a planar magnetic device according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of the AC resistance comparison curves of a planar magnetic device and a traditional planar magnetic device according to an embodiment of the present disclosure
  • FIG. 5 is a flowchart of an optional wiring method according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of an optional wiring device according to an embodiment of the present disclosure.
  • Fig. 7 is a schematic structural diagram of a non-volatile storage medium according to an embodiment of the present disclosure.
  • Fig. 8 is a schematic diagram of an optional electronic device according to an embodiment of the present disclosure.
  • plural means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently.
  • the character “/” generally indicates that the contextual objects are an "or” relationship.
  • Fig. 2 is a schematic diagram of a planar magnetic device according to the prior art, as shown in Fig. 2, one of the methods for planar magnetic devices is to Both the column 201 and the side column 202 have air gaps, which are respectively the middle column air gap 2011 and the side column air gap 2021, and the coil winding 203 is wound on the center column 201, which can make the height of the air gap become half of the original, thereby Effectively reduce the influence of the diffusion flux.
  • planar magnetic device has the following disadvantages: First, although the length of the air gap becomes half of the original, because the diffusion flux not only diffuses through the air gap of the central column, but also diffuses through the air gap of the side column, The contact area between the coil winding and the diffusion magnetic flux is increased, and the range of the coil winding affected by the diffusion magnetic flux becomes larger, which will also cause the problem of large loss; secondly, the area of the coil winding due to the diffusion magnetic flux cutting is not considered. Eddy current loss.
  • FIG. 3 is a schematic diagram of a planar magnetic device according to an embodiment of the present disclosure. As shown in FIG. 3 , it includes: a side column 301, and a first air gap is provided on the side column 3011; the central column 302 is parallel to the side column 301, and the central column 302 is provided with a second air gap 3021; the coil winding 303 is wound on the central column 302 and is close to the coil winding of the first air gap or the second air gap The line width is small, and the line width of the coil winding away from the first air gap and the second air gap is large.
  • Fig. 3 shows the longitudinal section of the right part of the planar magnetic device.
  • a three-dimensional planar magnetic device can be obtained by rotating the leftmost vertical direction in the figure as the axis.
  • the center column It can be located at the center of the planar magnetic device, the side columns can be located around the center column, the coil windings are wound on the center column, and the wires are isolated by insulating substances.
  • center post and coil winding can be existing side post, center post and coil winding, and the line width of the winding of above-mentioned step can be different, for example, close to air gap (the first air gap or the second The windings with two air gaps) can appropriately reduce the line width, and the windings away from the air gap (the first air gap and the second air gap) can appropriately increase the line width, and the total AC loss can be effectively reduced by setting different line widths .
  • the first air gap and the second air gap are set opposite to each other.
  • the width of the coil closer to the air gap is larger, then there will be more lines of magnetic force cutting the coil body, resulting in more eddy currents, so that the coil loss increases.
  • the coil far away from the air gap is weakly cut by the magnetic field lines, so appropriately increasing its line width can effectively reduce the DC loss of this part and the skin loss in the AC loss. Therefore, the overall AC loss can be minimized.
  • the line width is determined based on the first distance between the coil winding and the first air gap, the second distance between the coil winding and the second air gap, the current flowing through the coil winding, and the loss of the planar magnetic device.
  • the line width of the coil winding can be determined by the first distance between the position of the coil winding and the first air gap of the side column, and the second distance between the second air gap of the center column and the flow through The current in the coil winding and the losses in the planar magnetic device are jointly determined.
  • the line width is determined based on the first distance, current and loss; when the first distance is greater than the second distance, the line width is determined based on the second distance, current and loss Sure.
  • the first distance between the position of the coil winding and the first air gap of the side column is compared with the second distance between the position of the coil winding and the second air gap of the center column, when When the first distance is smaller than the second distance, the line width can be determined based on the first distance, current and loss; when the first distance is greater than the second distance, the line width can be determined based on the second distance, current and loss.
  • the AC loss generated by the skin effect of the coil winding is shown in formula 2- 1.
  • the AC loss caused by the proximity effect is shown in formula 2-2, and the formula is as follows:
  • W p is the line width of the coil winding
  • ⁇ is the resistivity of the copper wire
  • l p is the distance between the winding and the air gap (including the first air gap and the second air gap)
  • m p is the number of turns of the coil winding.
  • K s1 and K s2 are skin effect coefficients and proximity effect coefficients. These parameters are related to parameters such as magnetic permeability and operating frequency. If the magnetic core is fixed and the operating frequency is fixed, this value is a fixed value.
  • the line width of each layer plays a large role, and the total AC loss of the coil winding is P1 ac for the coil winding close to the first air gap, because the coil winding to the first leg of the core side
  • the distance l p of the air gap is small, so the loss caused by the proximity effect will account for a large proportion, so appropriately reducing the line width W p of the coil winding can effectively reduce the total AC loss; for the coil close to the second air gap
  • the total AC loss of the coil winding is P2 ac , because the distance lp between the coil winding and the second air gap of the core column is small, so the loss caused by the proximity effect will account for a large proportion, so it is appropriate Reducing the line width W p of the coil winding can effectively reduce the total AC loss; for the coil winding that is not close to the first air gap and the second air gap, because the coil winding is connected to the first air gap and the second air gap
  • the distances are relatively large, so the loss caused by the proximity effect
  • the line width of the coil winding closer to the first air gap or the second air gap is ensured to be smaller, and the distance from the first air gap is smaller.
  • FIG. 4 is a schematic diagram of the AC resistance comparison curves of the planar magnetic device and the traditional planar magnetic device provided according to the embodiment of the present disclosure.
  • the AC resistance of the bilateral asymmetric winding will be much smaller than the traditional scheme, especially in the high frequency part, the AC resistance of the bilateral asymmetric winding will be much smaller than the traditional scheme.
  • the abscissa is frequency (unit Hz)
  • the ordinate is AC resistance (unit mohm). This figure verifies the correctness of the theoretical analysis.
  • a planar magnetic device comprising: a side column, a first air gap is provided on the side column; a middle column, parallel to the side column, a second air gap is provided on the center column; a coil winding , wound on the central column, and the coil winding near the first air gap or the second air gap has a small line width, and the coil winding far away from the first air gap and the second air gap has a large line width.
  • FIG. 5 is a flowchart of an optional wiring method according to an embodiment of the present disclosure. As shown in FIG. 5, the wiring method includes:
  • Step S502 obtaining the current flowing through the coil winding and the loss of the planar magnetic device
  • the current in the above steps is the current flowing through the coil winding.
  • Step S504 based on the current and loss, determine the line width of the coil winding at different positions on the center column;
  • Step S506 winding the coil winding on the center column according to the line width at different positions.
  • determining the winding manner of the coil winding on the center column includes: determining a plurality of positions where the coil winding is wound on the center column; determining a first distance between each position and the first air gap, each The second distance between the position and the second air gap; the objective function is solved based on the first distance or the second distance, current and loss to obtain line widths at different positions.
  • the wiring method further includes: in response to the first distance being smaller than the second distance, solving an objective function based on the first distance, current and loss to obtain line widths at different positions.
  • the wiring method further includes: in response to the first distance being greater than the second distance, solving an objective function based on the first distance, current and loss to obtain line widths at different positions.
  • the wiring method further includes: obtaining the product of the resistivity of the coil winding, the square of the current and the skin effect coefficient to obtain the first product, and obtaining the ratio of the first product to the line width to obtain the skin effect loss function; Obtain the product of the line width, resistivity, number of turns of the coil winding, the square of the current, and the proximity effect coefficient to obtain the second product, and obtain the ratio of the second product to the square of the first distance or the second distance to obtain the proximity effect loss Function; obtain the weighted sum of the skin effect loss function and the proximity effect loss function to obtain the objective function.
  • FIG. 6 is a schematic structural diagram of an optional wiring device according to an embodiment of the present disclosure, as shown in FIG. 6, the device includes: an acquisition component 62, configured to acquire the current flowing through the coil winding, and the loss of the planar magnetic device; a determination component 64, configured to determine the coil winding at different positions on the center column based on the current and loss Wire width: the winding component 66 is configured to wind the coil winding on the center column according to the wire width at different positions.
  • An embodiment of the present disclosure also provides a non-volatile storage medium.
  • the non-volatile storage medium can store a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the method steps of the above-mentioned embodiment shown in FIG. 5 , For the specific execution process, reference may be made to the specific description of the embodiment shown in FIG. 5 , and details are not repeated here.
  • the device where the non-volatile storage medium is located may be an electronic device.
  • Each functional component provided by the embodiments of the present disclosure may run in a planar magnetic device or a similar computing device, and may also be stored as a part of a non-volatile storage medium.
  • Fig. 7 is a schematic structural diagram of a non-volatile storage medium according to an embodiment of the present disclosure.
  • a program product 70 according to an embodiment of the present disclosure is described, on which a computer program is stored, and when the computer program is executed by a processor, the program code that implements the following steps:
  • the program code for realizing the following steps: determine a plurality of positions where the coil winding is wound on the center column; determine the first distance between each position and the first air gap, and each position The second distance from the second air gap; solve the objective function based on the first distance or the second distance, current and loss, and obtain the line width at different positions.
  • the following steps are implemented: in response to the first distance being smaller than the second distance, solving the objective function based on the first distance, current and loss to obtain line widths at different positions.
  • the following steps are implemented: in response to the first distance being greater than the second distance, solving the objective function based on the first distance, current and loss to obtain line widths at different positions.
  • the program code that implements the following steps: obtain the product of the resistivity of the coil winding, the square of the current and the skin effect coefficient, obtain the first product, and obtain the first product and the line width The ratio of the skin effect loss function is obtained; the product of the line width, resistivity, the number of turns of the coil winding, the square of the current and the proximity effect coefficient is obtained to obtain the second product, and the second product and the first distance or the second The ratio of the square of the distance is used to obtain the proximity effect loss function; the weighted sum of the skin effect loss function and the proximity effect loss function is obtained to obtain the objective function.
  • the non-volatile storage medium may also be configured as program codes of various preferred or optional method steps provided by the wiring method.
  • Non-volatile storage media may include a data signal carrying readable program code in baseband or as part of a carrier wave traveling as a data signal. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • a non-volatile storage medium may send, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
  • the program code contained in the non-volatile storage medium can be transmitted by any appropriate medium, including but not limited to wireless, cable, optical cable, radio frequency, etc., or any suitable combination of the above.
  • FIG. 8 is a schematic diagram of an optional electronic device according to an embodiment of the present disclosure.
  • the electronic device 1000 may include: at least one processor 1001, at least A network interface 1004, a user interface 1003, a memory 1005, and at least one communication bus 1002.
  • the communication bus 1002 is used to realize connection and communication between these components.
  • the user interface 1003 may include a display screen (Display) and a camera (Camera), and the optional user interface 1003 may also include a standard wired interface and a wireless interface.
  • Display display screen
  • Camera Camera
  • the optional user interface 1003 may also include a standard wired interface and a wireless interface.
  • the network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface).
  • the processor 1001 may include one or more processing cores.
  • the processor 1001 uses various interfaces and lines to connect various parts of the entire electronic device 1000, and executes or executes by running or executing instructions, programs, code sets or instruction sets stored in the memory 1005, and calling data stored in the memory 1005.
  • Various functions of the electronic device 1000 and processing data may adopt at least one of Digital Signal Processing (Digital Signal Processing, DSP), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), and Programmable Logic Array (Programmable Logic Array, PLA). implemented in the form of hardware.
  • DSP Digital Signal Processing
  • FPGA Field-Programmable Gate Array
  • PLA Programmable Logic Array
  • the processor 1001 may integrate one or a combination of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU) and a modem.
  • CPU Central Processing Unit
  • GPU Graphics Processing Unit
  • the CPU mainly handles the operating system, user interface and application programs, etc.
  • the GPU is used to render and draw the content that needs to be displayed on the display screen
  • the modem is used to handle wireless communication. It can be understood that the above modem may also not be integrated into the processor 1001, but implemented by a single chip.
  • the memory 1005 may include a random access memory (Random Access Memory, RAM), and may also include a read-only memory (Read-Only Memory).
  • the memory 1005 includes a non-transitory computer-readable storage medium (non-transitory computer-readable storage medium).
  • the memory 1005 may be used to store instructions, programs, codes, sets of codes or sets of instructions.
  • the memory 1005 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), Instructions, etc. used to implement the above method embodiments; the storage data area can store data, etc. involved in the above method embodiments.
  • the memory 1005 may also be at least one storage device located away from the aforementioned processor 1001 .
  • the memory 1005 as a computer storage medium may include an operating system, a network communication component, a user interface component, and an operating application program of the electronic device.
  • the user interface 1003 is mainly used to provide the user with an input interface to obtain the data input by the user; and the processor 1001 can be used to call the operation application program of the electronic device stored in the memory 1005, And specifically perform the following operations: obtain the current flowing through the coil winding and the loss of the planar magnetic device; determine the line width of the coil winding at different positions on the center column based on the current and loss; wind the coil winding on the center column according to the line width of different positions on the center pillar
  • the operating system of the electronic device is an Android system.
  • the processor 1001 also performs the following steps: based on the current and loss, determining the line width of the coil winding at different positions on the center column includes: determining the coil winding Wrap multiple locations on the center post; determine the target distance from each location to the second air gap; solve the objective function based on the target distance, current, and loss to get the line width at different locations.
  • the processor 1001 further executes the following step: in response to the first distance being smaller than the second distance, solving an objective function based on the first distance, current and loss to obtain line widths at different positions.
  • the processor 1001 further executes the following step: in response to the first distance being smaller than the second distance, solving an objective function based on the first distance, current and loss to obtain line widths at different positions.
  • the processor 1001 further performs the following steps: obtain the product of the resistivity of the coil winding, the square of the current and the skin effect coefficient to obtain the first product, and obtain the ratio of the first product to the line width to obtain the set Skin effect loss function; obtain the product of the line width, resistivity, number of turns of the coil winding, the square of the current and the proximity effect coefficient to obtain the second product, and obtain the ratio of the second product to the square of the target distance to obtain the proximity effect loss Function; obtain the weighted sum of the skin effect loss function and the proximity effect loss function to obtain the objective function.
  • the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions
  • the device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.
  • a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
  • processors CPUs
  • input/output interfaces network interfaces
  • memory volatile and non-volatile memory
  • Memory may include non-permanent storage in computer readable media, in the form of random access memory (RAM) and/or nonvolatile memory such as read only memory (ROM) or flash RAM.
  • RAM random access memory
  • ROM read only memory
  • flash RAM flash random access memory
  • Computer-readable media including both permanent and non-permanent, removable and non-removable media, can be implemented by any method or technology for storage of information.
  • Information may be computer readable instructions, data structures, components of programs, or other data.
  • Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Flash memory or other memory technology, Compact Disc Read-Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cartridge, tape magnetic disk storage or other magnetic storage device or any other non-transmission medium that can be used to store information that can be accessed by a computing device.
  • computer-readable media excludes transitory computer-readable media, such as modulated data signals and carrier waves.
  • the solution provided by the embodiments of the present disclosure can be applied to the wiring process to obtain the current flowing through the coil winding and the loss of the planar magnetic device; based on the current and loss, determine the line width of the coil winding at different positions on the center column; according to different The line width of the position winds the coil winding on the center column, thereby achieving the technical effect of effectively reducing the total AC loss and solving the technical problem of large loss in the existing planar magnetic devices.

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Abstract

Des modes de réalisation de la présente divulgation se rapportent au domaine technique de l'électronique. L'invention concerne un dispositif magnétique plan et un procédé de câblage. Le dispositif magnétique plan comprend : une colonne latérale, un premier entrefer étant disposé sur la colonne latérale ; une colonne centrale parallèle à la colonne latérale, un second entrefer étant prévu sur la colonne centrale ; et un enroulement de bobine enroulé sur la colonne centrale, la largeur de fil de l'enroulement de bobine proche du premier entrefer ou du second entrefer étant faible, et la largeur de fil de l'enroulement de bobine à l'opposé du premier entrefer et du second entrefer étant large. Par conséquent, les modes de réalisation de la présente invention peuvent résoudre le problème dans l'état de la technique de perte importante du dispositif magnétique plan.
PCT/CN2022/134460 2021-12-01 2022-11-25 Dispositif magnétique plan et procédé de câblage WO2023098594A1 (fr)

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CN2697803Y (zh) * 2004-04-22 2005-05-04 艾默生网络能源有限公司 谐振电感
JP2010232390A (ja) * 2009-03-26 2010-10-14 Panasonic Electric Works Co Ltd トランス
CN103177848A (zh) * 2011-12-23 2013-06-26 台达电子企业管理（上海）有限公司 直流滤波电感器及其制作方法
CN204332636U (zh) * 2014-11-26 2015-05-13 深圳市盛弘电气有限公司 一种磁性组件
CN109804441A (zh) * 2016-10-12 2019-05-24 欧姆龙株式会社 变压器及具备该变压器的电力转换器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2697803Y (zh) * 2004-04-22 2005-05-04 艾默生网络能源有限公司 谐振电感
JP2010232390A (ja) * 2009-03-26 2010-10-14 Panasonic Electric Works Co Ltd トランス
CN103177848A (zh) * 2011-12-23 2013-06-26 台达电子企业管理（上海）有限公司 直流滤波电感器及其制作方法
CN204332636U (zh) * 2014-11-26 2015-05-13 深圳市盛弘电气有限公司 一种磁性组件
CN109804441A (zh) * 2016-10-12 2019-05-24 欧姆龙株式会社 变压器及具备该变压器的电力转换器

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