CN115863019A - Flat wire vertically-wound inductor with inductance coil - Google Patents
Flat wire vertically-wound inductor with inductance coil Download PDFInfo
- Publication number
- CN115863019A CN115863019A CN202310172764.8A CN202310172764A CN115863019A CN 115863019 A CN115863019 A CN 115863019A CN 202310172764 A CN202310172764 A CN 202310172764A CN 115863019 A CN115863019 A CN 115863019A
- Authority
- CN
- China
- Prior art keywords
- inductance coil
- inductor
- magnetic cores
- combined magnetic
- inductance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses an inductor with a flat wire vertically wound with an inductance coil, which comprises a bottom plate, wherein a connecting column is arranged on the bottom plate, the surface of the connecting column is provided with the inductance coil, and a fixing device is arranged between the connecting column and the inductance coil; the inductance coil comprises a combined magnetic core, the effective sectional area of the whole inductance coil is increased by stacking a plurality of combined magnetic cores, so that the working performance of the inductance coil is improved, a connecting sleeve of the inductance coil penetrates through the inner rings of the combined magnetic cores, the combined magnetic cores are fixed to be completely overlapped in the vertical direction, and the disorder of magnetic induction lines caused by the fact that the combined magnetic cores are not overlapped is avoided; the connecting column is connected with a ceramic piece of a fixing device through an elastic piece, the ceramic piece can adsorb heat generated by the coil during operation while fixing the inductance coil, and meanwhile, the ceramic piece with good insulation can prevent the current movement of the coil from generating the leakage problem; the arrangement of the shell can prevent the inductance coil from being influenced by an electromagnetic field of an external circuit, and the effect of electrostatic shielding is achieved.
Description
Technical Field
The invention relates to the technical field of inductors, in particular to an inductor with a flat wire vertically wound inductance coil.
Background
An inductor is a component that converts electrical energy into magnetic energy for storage. The inductor is similar in structure to a transformer, but has only one winding. The inductor has an inductance that only impedes the change in current. If the inductor is in a state where no current is passing, it will try to block the current from flowing through it when the circuit is on; if the inductor is in a current passing state, the inductor will try to keep the current unchanged when the circuit is opened.
With the continuous improvement of the inductor, the technology of the flat wire vertically wound inductor is gradually improved, and in the current technology, there is a scheme for increasing the working performance of the inductor by stacking magnetic cores, for example, a high frequency vertically wound inductor with publication number CN216389010U, which includes a magnetic core group and a high frequency winding, the magnetic core group includes a plurality of sequentially stacked magnetic cores, the high frequency winding includes a plurality of aluminum flat wires, and a starting end and a ending end disposed on the aluminum flat wires, and a plurality of the aluminum flat wires are vertically wound on the magnetic cores.
However, a plurality of magnetic cores of the inductor are fixedly connected through steel belts, and the positions of the plurality of magnetic cores may deviate slightly to cause incomplete superposition, so that the magnetic field of the whole magnetic core is disordered, and the working effect of the inductor is influenced; meanwhile, the inductor has no shell, and the coil is exposed outside, so that the inductor is easily influenced by electromagnetic fields of other electric devices when working in a circuit; the inductor can not be used in a high-power circuit only by radiating heat through the contact of the coil and air, thereby influencing the application range of the inductor.
Disclosure of Invention
The invention aims to solve the problems that the superposed magnetic cores in the background art can not be completely superposed, the electromagnetic coil has poor heat dissipation effect and is easily influenced by an electromagnetic field of an external circuit, and provides an inductor of a flat wire vertical winding inductance coil.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a flat wire is immediately around inductance coils's inductor, includes the bottom plate, is provided with the spliced pole on the bottom plate, is provided with inductance coils around the spliced pole, is provided with fixing device between spliced pole and the inductance coils, and the surface of spliced pole is provided with inductance coils, inductance coils includes:
the combined magnetic cores are all in the same annular shape and are overlapped in the vertical direction;
the inner ring of a plurality of combination magnetic cores is worn to establish by connecting sleeve, transmits the magnetism of combination magnetic core when fixing a plurality of combination magnetic cores on surface's position, and connecting sleeve makes a plurality of combination magnetic cores can possess the same projection in vertical direction, and a plurality of combination magnetic cores have the aluminium flat wire with connecting sleeve's surface winding.
As a further scheme of the invention: the height of the connecting sleeve is the same as that formed by stacking a plurality of combined magnetic cores.
As a further scheme of the invention: the cross section of the aluminum flat wire is rectangular.
As a further scheme of the invention: the included angle and the distance between the adjacent aluminum flat wires on the surface of the inductance coil are the same.
As a further scheme of the invention: be provided with fixing device between spliced pole and the inductance coils, fixing device includes:
and the ceramic plates are circumferentially distributed about the center of the rotating shaft of the connecting column, elastic pieces are arranged between the ceramic plates and the connecting column, and the ceramic plates are in close contact with the inductance coil.
As a further scheme of the invention: the elastic part is a plurality of extrusion springs, and the extrusion springs connected with the same ceramic chip are positioned on the same vertical straight line.
As a further scheme of the invention: the height of the ceramic wafer is the same as that of the connecting sleeve, the contact surface of the ceramic wafer and the connecting sleeve is an arc surface, and the radius of the arc surface is the same as that of the connecting sleeve.
As a further scheme of the invention: the bottom plate top is provided with the casing, and the top of casing can be dismantled and be connected with the end cover.
As a further scheme of the invention: the end cover is provided with a connecting wire in a penetrating way, and the connecting wire is electrically connected with the inductance coil.
As a further scheme of the invention: the bottom surface of the end cover is provided with a stud, the top surface of the connecting column is provided with a corresponding threaded hole, and the end cover is in threaded connection with the connecting column.
The invention has the beneficial effects that:
(1) According to the flat wire vertically-wound inductance coil, the connecting sleeve is arranged and fixes the combined magnetic cores, so that the combined magnetic cores are overlapped along the projection in the vertical direction, the condition that the magnetic fields of the combined magnetic cores are disordered due to the fact that the combined magnetic cores are not overlapped and stacked is avoided, meanwhile, the winding position is smoother, and the winding quality of the inductance coil is improved;
(2) According to the flat wire vertically-wound inductance coil, the shell is arranged, so that the inductance coil in the inductor is protected by the shell, meanwhile, an electrostatic shielding effect is generated inside, and the electromagnetic field of the inductance coil is prevented from being interfered by the outside;
(3) According to the flat wire vertically-wound inductance coil, the fixing device is arranged and fixes the inductance coil through the elastic piece, so that the inductor can be adapted to coils with different specifications, and the application range of the inductor is widened;
(4) According to the flat wire vertically-wound inductance coil, the ceramic piece is arranged, so that the ceramic piece has insulativity and good heat dissipation performance while fixing the inductance coil, the coil can be cooled while a fixing effect is achieved, and electric leakage caused by current transmission of the coil can be prevented.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the construction of the composite magnetic core of the present invention;
FIG. 2 is a schematic structural diagram of a flat-wire vertically wound inductor of the present invention;
FIG. 3 is a cross-sectional view of an inductor of the present invention having a flat wire end-wound inductor coil;
FIG. 4 is a schematic diagram of a flat-wire vertically wound inductor according to the present invention;
fig. 5 is a top view of an inductor and a fixture according to the present invention.
In the figure: 1. a base plate; 2. a housing; 3. connecting columns; 31. a threaded hole; 4. a fixing device; 41. a compression spring; 42. a ceramic plate; 5. an inductor coil; 51. a combined magnetic core; 52. a connecting sleeve; 53. a flat aluminum wire; 6. an end cap; 61. a stud; 7. and connecting the wires.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-2, the flat-wire vertically-wound inductor of the present invention includes an inductor coil 5, the inductor coil 5 is composed of a plurality of combined magnetic cores 51, the combined magnetic cores 51 are in the same circular shape, and the combined magnetic cores 51 are stacked together, so that the effective cross-sectional area of the whole inductor coil 5 can be effectively increased, thereby improving the working performance of the inductor coil 5, and the shape of the inductor coil 5 can be changed by changing the number of the combined magnetic cores 51, thereby adapting to more winding wires with different lengths, and enabling the winding wires to precisely surround the combined magnetic cores 51; the conventional coil cores are mostly integrally formed, and the same type of core acts on the inductors with the corresponding sizes, but the combined core 51 can be adapted to more inductors by free combination.
The same connecting sleeve 52 is sleeved in the inner ring of the combined magnetic cores 51 of the inductance coil 5, and the connecting sleeve 52 is made of metal materials, so that the connecting sleeve 52 has good magnetic conductivity, the magnetism of the combined magnetic cores 51 is transmitted while the positions of the combined magnetic cores 51 on the surface are fixed, the combined magnetic cores 51 with the same shape are sleeved with the same connecting sleeve 52, so that the combined magnetic cores 51 have the same axial center, the connecting sleeve 52 enables the combined magnetic cores 51 to have the same projection in the vertical direction, the adjacent combined magnetic cores 51 are completely overlapped, and the condition that the electric field lines are disordered due to the relative deviation generated at the positions of the combined magnetic cores 51 is avoided; the aluminum flat wire 53 is wound on the combined magnetic core 51 and the connecting sleeve 52, and the aluminum flat wire 53 has a smaller thickness than a conventional vertically wound copper wire, so that the number of turns of a winding can be increased to adjust the working frequency more accurately.
The cross section of the rectangular aluminum flat wire 53 is rectangular, the rectangular aluminum flat wire 53 enables the shape of the inductance coil 5 to be more compact, meanwhile, the connecting area between the aluminum flat wire 53 and the combined magnetic core 51 and between the aluminum flat wire 53 and the connecting sleeve 52 can be increased, and the winding of the aluminum flat wire 53 is enabled to be more stable; contained angle and interval between the adjacent aluminium flat wire 53 on inductance coils 5 surface are all the same, make aluminium flat wire 53 carry out even winding to combination magnetic core 51 and connecting sleeve 52, make inductance coils 5's electromagnetic induction more even, connecting sleeve 52 highly is the same with the height that a plurality of combination magnetic cores 51 superpose formed, can reduce when making aluminium flat wire 53 wind and make up magnetic core 51, the space between the connecting sleeve 52 to promote aluminium flat wire 53 coil winding's quality.
When the inductance coil 5 acts on the circuit, the exposed coil is easily affected by the electromagnetic field of other electric appliances, so that the magnetic field of the magnetic core is disturbed to lower the working efficiency of the coil, and the coil is generally shielded by static electricity to prevent the coil from being interfered by other electromagnetic fields.
The top of the bottom plate 1 is fixedly connected with a shell 2, the connecting column 3 and the inductance coil 5 are positioned in an inner cavity of the shell 2, the top of the shell 2 is provided with an opening, the opening enables the inner cavity of the shell 2 to be communicated with the outside, the inner cavity of the top of the shell 2 is detachably connected with an end cover 6, and the bottom of the end cover 6 is provided with a stud 61; the top of the connecting column 3 is provided with a threaded hole 31, the threaded hole 31 is matched with the stud 61, and the end cover 6 is detachably connected with the connecting column 3 through the threaded matching of the threaded hole 31 and the stud 61; the end cover 6 is provided with a connecting wire 7 in a penetrating manner, one end of the connecting wire 7 is positioned outside the shell 2, and the other end of the connecting wire 7 is electrically connected with the inductance coil 5.
This coil that exposes outside can dispel the heat through with air direct contact, carries out electrostatic shielding through installation casing 2 after, and inductance coils 5's heat dissipation is influenced to influence inductance coils 5's life. And meanwhile, the inductance coil 5 is positioned in the shell 2 and needs to be fixed, so that the stability of the inductance coil 5 in the working process is ensured.
Referring to fig. 3-5, the inductor of the invention includes a bottom plate 1, a connecting post 3 is disposed on the top of the bottom plate 1, the inductance coil 5 is sleeved on the surface of the connecting post 3, a fixing device 4 is disposed between the connecting post 3 and the inductance coil 5, the fixing device 4 includes a plurality of extrusion springs 41, the other ends of the extrusion springs 41 far from the connecting post 3 are connected with a same ceramic plate 42, the ceramic plate 42 extrudes the aluminum flat wire 53 under the action of the extrusion springs 41, and the center of the circle of the inductance coil 5 is adjusted to the center of the circle of the connecting post 3. When inductance coils 5 is in operating condition, thereby the ceramic wafer 42 absorbs the heat that aluminium flat wire 53 during operation produced through contacting with aluminium flat wire 53, and aluminium flat wire 53 is because electromagnetic induction may produce the electric current simultaneously, and ceramic wafer 42 possesses insulating nature, can completely cut off electric current flow direction spliced pole 3, and extrusion spring 41 makes and fixes inductance coils 5 through extrusion ceramic wafer 42 to can let the inductor be applicable to the coil of different specifications, promoted the application scope of inductor.
Furthermore, the plurality of extrusion springs 41 are positioned on the same vertical straight line, so that the plurality of extrusion springs 41 can uniformly push the ceramic plate 42 to fix the inductance coil 5; the surface of the ceramic plate 42 close to the inductance coil 5 is an arc surface, the radius of the arc surface is the same as that of the inductance coil 5, and the height of the ceramic plate 42 is the same as that of the connecting sleeve 52, so that the ceramic plate 42 can be fully contacted with the inner ring of the inductance coil 5, and the aluminum flat wire 53 is more effectively extruded and radiated.
According to the inductor with the flat wire vertically wound inductance coil, the effective sectional area of the whole inductor is improved by superposing the combined magnetic cores 51; in order to protect the coil from electromagnetic fields in the circuit, the induction coil 5 is electrostatically shielded by using the housing 2; after carrying out electrostatic shielding to inductance coils 5, inductance coils 5 can't fully contact with the outside air to influence self radiating effect, fix inductance coils 5 through fixing device 4, fixing device 4 can be suitable for with the coil of variation in size, absorb the heat that inductance coils 5 during operation produced through fixing device 4's potsherd 42, effectively dispel the heat to inductance coils 5, the insulating nature of potsherd 42 also can prevent inductance coils 5's electric current electric leakage.
Example 2
Based on the embodiment 1, the method for using the flat-wire vertically-wound inductor comprises the following steps:
step 1: the inductance coil 5 comprises a plurality of combined magnetic cores 51, and the height of the inductance coil 5 can be changed by overlapping the plurality of combined magnetic cores 51, so that more winding wires with different lengths can be adapted, and the winding wires can precisely surround the combined magnetic cores 51;
step 2: the same connecting sleeve 52 is sleeved in the middle of the combined magnetic cores 51, the connecting sleeve 52 enables the positions of the combined magnetic cores 51 to be overlapped, meanwhile, the connecting sleeve 52 made of metal can transmit magnetism of the combined magnetic cores 51, and the aluminum flat wire 53 is uniformly vertically wound on the surfaces of the combined magnetic cores 51 and the connecting sleeve 52 to form the complete inductance coil 5;
and step 3: the inductance coil 5 is sleeved on the surface of the connecting column 3, the connecting column 3 fixes the inductance coil 5 through the fixing device 4, the ceramic piece 42 of the fixing device 4 can absorb heat generated by the aluminum flat wire 53 during working while playing a role of extruding and fixing, and the ceramic piece 42 can isolate the current of the inductance coil 5 from flowing to the connecting column 3;
and 4, step 4: the top of casing 2 is provided with end cover 6, through threaded connection between end cover 6 and the spliced pole 3, makes convenient the dismantlement between end cover 6 and the casing 2, and 7 one end of connecting wire that end cover 6 set up are located the casing 2 outsidely, and the other end of connecting wire 7 is connected with inductance coils 5, makes the inductor pass through connecting wire 7 and acts on among the outer circuit, and casing 2 can play electrostatic shielding's effect to inside inductance coils 5.
The working principle of the invention is as follows: according to the inductor with the flat wire vertically-wound inductance coil, the inductance coil 5 with the combined magnetic cores 51 is arranged, the combined magnetic cores 51 are stacked, the effective sectional area of the whole inductance coil 5 is effectively increased, the electromagnetic induction effect of a continuous coil is improved, and the inductance coil 5 with the magnetic induction coil has a wider application range; by arranging the connecting sleeve 52, the connecting sleeve 52 penetrates through the inner rings of the combined magnetic cores 51, and the connecting sleeve 52 fixes the combined magnetic cores 51, so that the projections of the combined magnetic cores 51 in the vertical direction are overlapped, and the condition that the magnetic fields of the combined magnetic cores 51 are disordered due to the fact that the combined magnetic cores 51 are not overlapped and overlapped is avoided; by arranging the fixing device 4, the fixing device 4 is connected with the ceramic plates 42 through the plurality of extrusion springs 41, the ceramic plates 42 can fix the inductance coil 5, so that the inductor can be adapted to coils with different specifications, the application range of the inductor is widened, the ceramic plates 42 fix the inductance coil 5, the ceramic plates 42 can adsorb heat of the aluminum flat wire 53 in the working process of the inductance coil 5, the inductance coil 5 is effectively radiated, and meanwhile, the insulativity of the ceramic plates 42 prevents the inductance coil 5 from generating an electric leakage condition; by providing the housing 2, the housing 2 protects the inductance coil 5 inside the inductor and also generates an electrostatic shielding effect inside, thereby preventing the electromagnetic field of the inductance coil 5 from being interfered by the outside.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. The utility model provides a flat wire is immediately around inductance coils's inductor, includes bottom plate (1), is provided with spliced pole (3) on bottom plate (1), and the surface of spliced pole (3) is provided with inductance coils (5), its characterized in that, inductance coils (5) include:
the combined magnetic cores (51) are all in the same annular shape, and the combined magnetic cores (51) are overlapped in the vertical direction;
the magnetic coupling structure comprises a connecting sleeve (52), wherein the connecting sleeve (52) penetrates through inner rings of a plurality of combined magnetic cores (51), the positions of the combined magnetic cores (51) on the surface are fixed, the magnetism of the combined magnetic cores (51) is transmitted, the connecting sleeve (52) enables the combined magnetic cores (51) to have the same projection in the vertical direction, and aluminum flat wires (53) are wound on the surfaces of the combined magnetic cores (51) and the connecting sleeve (52).
2. An inductor in the form of a flat-wire end-wound inductor according to claim 1, wherein the height of the connecting sleeve (52) is the same as the height of the stacked plurality of assembled cores (51).
3. An inductor in the form of a flat-wire end-wound inductor according to claim 1, characterized in that the cross-section of the aluminum flat wire (53) is rectangular.
4. A flat-wire end-wound inductor according to claim 1, characterized in that the angle and distance between adjacent aluminum flat wires (53) on the surface of the inductor (5) are the same.
5. A flat-wire end-wound inductor according to claim 1, characterized in that a fixing device (4) is provided between the connection post (3) and the inductor winding (5), said fixing device (4) comprising:
the ceramic plates (42) are distributed in a circumferential manner about the center of the rotating shaft of the connecting column (3), elastic pieces are arranged between the ceramic plates (42) and the connecting column (3), and the ceramic plates (42) are in close contact with the inductance coil (5).
6. The inductance of the flat wire end-wound inductance coil of claim 5, wherein said elastic member is a plurality of pressing springs (41), and a plurality of pressing springs (41) connecting the same ceramic piece (42) are located on the same vertical line.
7. The inductance of the flat wire vertical wound inductance coil of claim 6, wherein the height of the ceramic plate (42) is the same as the height of the connecting sleeve (52), the contact surface of the ceramic plate (42) and the connecting sleeve (52) is a circular arc surface, and the radius of the circular arc surface is the same as the radius of the connecting sleeve (52).
8. An inductor with a flat-wire end-wound inductor according to claim 1, characterized in that the housing (2) is arranged on top of the bottom plate (1), and the end cap (6) is detachably connected to the top of the housing (2).
9. The edgewise inductor according to claim 8, wherein the end cap (6) is provided with a connecting wire (7) and the connecting wire (7) is electrically connected to the inductor (5).
10. The flat wire end-wound inductor according to claim 9, wherein the bottom surface of the end cap (6) is provided with a stud (61), the top surface of the connecting column (3) is provided with a corresponding threaded hole (31), and the end cap (6) is in threaded connection with the connecting column (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310172764.8A CN115863019B (en) | 2023-02-28 | 2023-02-28 | Inductor with flat wire vertically wound on inductance coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310172764.8A CN115863019B (en) | 2023-02-28 | 2023-02-28 | Inductor with flat wire vertically wound on inductance coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115863019A true CN115863019A (en) | 2023-03-28 |
| CN115863019B CN115863019B (en) | 2023-05-09 |
Family
ID=85659204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310172764.8A Active CN115863019B (en) | 2023-02-28 | 2023-02-28 | Inductor with flat wire vertically wound on inductance coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115863019B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005093830A (en) * | 2003-09-19 | 2005-04-07 | Daifuku Co Ltd | Composite core reactor and inductive power receiving connection |
| JP2012234995A (en) * | 2011-05-02 | 2012-11-29 | Takanari Terakawa | Variable inductor |
| JP2018125399A (en) * | 2017-01-31 | 2018-08-09 | 太陽誘電株式会社 | Electronic component, method of manufacturing electronic component, and electronic module |
| CN210640091U (en) * | 2019-08-22 | 2020-05-29 | 南县利尔达电子有限公司 | Vertical inductor convenient to installation |
| CN211265228U (en) * | 2019-11-15 | 2020-08-14 | 万佳（珠海）磁性材料科技有限公司 | Modular magnetic core inductor |
| CN216389010U (en) * | 2021-12-06 | 2022-04-26 | 深圳市京泉华科技股份有限公司 | High-frequency vertical winding inductor |
| CN115472392A (en) * | 2022-09-09 | 2022-12-13 | 湖南名巨电子科技有限公司 | High-current annular vertical winding inductor and winding method thereof |
-
2023
- 2023-02-28 CN CN202310172764.8A patent/CN115863019B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005093830A (en) * | 2003-09-19 | 2005-04-07 | Daifuku Co Ltd | Composite core reactor and inductive power receiving connection |
| JP2012234995A (en) * | 2011-05-02 | 2012-11-29 | Takanari Terakawa | Variable inductor |
| JP2018125399A (en) * | 2017-01-31 | 2018-08-09 | 太陽誘電株式会社 | Electronic component, method of manufacturing electronic component, and electronic module |
| CN210640091U (en) * | 2019-08-22 | 2020-05-29 | 南县利尔达电子有限公司 | Vertical inductor convenient to installation |
| CN211265228U (en) * | 2019-11-15 | 2020-08-14 | 万佳（珠海）磁性材料科技有限公司 | Modular magnetic core inductor |
| CN216389010U (en) * | 2021-12-06 | 2022-04-26 | 深圳市京泉华科技股份有限公司 | High-frequency vertical winding inductor |
| CN115472392A (en) * | 2022-09-09 | 2022-12-13 | 湖南名巨电子科技有限公司 | High-current annular vertical winding inductor and winding method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115863019B (en) | 2023-05-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6380745B2 (en) | Trance | |
| EP3428937A1 (en) | Hollow toroidal magnetic power unit | |
| US20220130602A1 (en) | Transformer And Method For Manufacturing Transformer | |
| JP2007142339A (en) | Thunder resistance reinforcing type insulation transformer for low voltage | |
| CN115863019A (en) | Flat wire vertically-wound inductor with inductance coil | |
| WO2021147277A1 (en) | Multi-phase transformer | |
| CN107017084B (en) | Coil device | |
| CN109285661B (en) | Coil device | |
| JP2005303034A (en) | Inductor and its manufacturing method | |
| CN210200467U (en) | Multi-variant transformer | |
| CN113724997A (en) | Method for manufacturing electronic component and electronic component | |
| WO2014181497A1 (en) | Transformer | |
| JPH1074634A (en) | Converter transformer | |
| CN211016726U (en) | LL C main transformer | |
| CN114937549B (en) | Common mode inductance | |
| JP2008124433A (en) | Winding machine for pulse power supplies, and pulse power supply | |
| JP2009105180A (en) | Transformer | |
| CN219497523U (en) | Transformer and transformer framework | |
| CN218384685U (en) | Annular high-frequency inductor | |
| CN219105856U (en) | High-frequency transformer shell | |
| CN209785720U (en) | integrated small transformer winding structure | |
| CN215298999U (en) | Miniature audio transformer | |
| CN217562359U (en) | Voltage transformer for gas insulation station | |
| CN216599414U (en) | Power module and power supply device | |
| TWI764848B (en) | Transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |