CN211016729U - High-voltage planar transformer - Google Patents
High-voltage planar transformer Download PDFInfo
- Publication number
- CN211016729U CN211016729U CN201922293315.0U CN201922293315U CN211016729U CN 211016729 U CN211016729 U CN 211016729U CN 201922293315 U CN201922293315 U CN 201922293315U CN 211016729 U CN211016729 U CN 211016729U
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- coil
- circuit board
- printed circuit
- magnetic core
- insulating plate
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Abstract
The utility model discloses a high-voltage planar transformer, including insulation board, magnetic core, a plurality of primary coil subassemblies and a plurality of secondary coil subassemblies, the magnetic core is fixed in on the insulation board, and at least part of the primary coil subassembly and/or part of secondary coil subassembly include coil printed circuit board and coil, be equipped with the through-hole that supplies the center pillar of magnetic core to pass through on the coil printed circuit board, the coil uses the through-hole as the center around locating on the coil printed circuit board, the both ends of coil all are provided with the pad; the secondary coil assemblies are sleeved on the middle columns of the magnetic cores, and a primary coil assembly is clamped between every two adjacent secondary coil assemblies; and the bonding pads of the coils are mutually connected and then fixed on the insulating plate. The utility model discloses a high-voltage plane transformer has advantages such as simple structure, small and insulating voltage grade height.
Description
Technical Field
The utility model relates to a high-voltage planar transformer is refered in particular to in transformer technical field.
Background
The existing transformer winding is wound by conducting wires, the size of the transformer is large, and the grade of the borne insulation voltage is not high.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in: to the technical problem that prior art exists, the utility model provides a simple structure, small and high-voltage plane transformer of insulating voltage level.
In order to solve the technical problem, the utility model provides a technical scheme does:
a high-voltage planar transformer comprises an insulating plate, a magnetic core, a plurality of primary coil assemblies and a plurality of secondary coil assemblies, wherein the magnetic core is fixed on the insulating plate, at least part of the primary coil assemblies and/or part of the secondary coil assemblies comprise a coil printed circuit board and a coil, a through hole for a central column of the magnetic core to pass through is formed in the coil printed circuit board, the coil is wound on the coil printed circuit board by taking the through hole as the center, and welding pads are arranged at two ends of the coil; the secondary coil assembly is sleeved on the middle column of the magnetic core, and the secondary coil assembly and the primary coil assembly are arranged in a vertically staggered manner; and the bonding pads of the coils are mutually connected and then fixed on the insulating plate.
As a further improvement of the above technical solution:
and part of the primary coil assembly or part of the secondary coil assembly is a conducting wire or a copper sheet.
When the primary coil assembly or part of the secondary coil assembly is a wire or a copper sheet, leads corresponding to the coil assemblies are connected in parallel, penetrate through the insulating plate and are fixed on the insulating plate to serve as pins of the transformer.
Each coil printed circuit board is a multilayer circuit board.
The bonding pad includes one or more parallel holes through the coil printed circuit board.
The insulating plate is a rigid epoxy resin plate.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a high-voltage planar transformer, with the coil printed circuit board, or coil printed circuit board and coil matched with coil form in some or all of primary coil subassembly and/or some secondary coil subassemblies, make the volume of whole transformer littleer, insulating voltage grade is higher, can bear the insulating voltage of ten thousand volts of grades; and simple structure, simple and convenient assembly.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a second schematic perspective view of an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a primary coil assembly according to an embodiment of the present invention.
The reference numbers in the figures denote: 1. an insulating plate; 2. a magnetic core; 201. a center pillar; 3. a primary coil assembly; 301. a coil printed circuit board; 302. a coil; 303. a pad; 4. a secondary coil assembly; 5. and (7) leading wires.
Detailed Description
The invention is further described with reference to the drawings and the specific embodiments.
As shown in fig. 1 to 3, the high voltage planar transformer of the present embodiment includes an insulating plate 1, a magnetic core 2, a plurality of primary coil assemblies 3 and a plurality of secondary coil assemblies 4, the magnetic core 2 is fixed on the insulating plate 1, at least a part of the primary coil assemblies 3 and/or a part of the secondary coil assemblies 4 includes a coil printed circuit board 301 and a coil 302, the coil printed circuit board 301 is provided with a through hole for the center pillar 201 of the magnetic core 2 to pass through, the coil 302 is wound around the coil printed circuit board 301 with the through hole as a center, and both ends of the coil 302 are provided with pads 303; the secondary coil assembly 4 is sleeved on the middle post 201 of the magnetic core 2, and the secondary coil assembly 4 and the primary coil assembly 3 are arranged in a vertically staggered manner; the pads 303 of the coils are connected to each other and fixed to the insulating plate 1.
The utility model discloses a high-voltage plane transformer, with some or all adoption coil printed circuit board 301 and coil 302 matched with coil form in primary coil subassembly 3 and/or partial secondary coil subassembly 4 for the volume of whole transformer is littleer, and for the structure of coil cable, coil 302 arranges in the inlayer of coil printed circuit board 301, and the thickness of coil printed circuit board 301 skin (like the epoxy material) is great, thereby makes the insulating voltage grade higher, can bear the insulating voltage of ten thousand volts; and simple structure, simple and convenient assembly.
As shown in fig. 1 to 3, in the present embodiment, the primary coil assembly 3 is in the form of a coil printed circuit board 301 and a coil 302, and the secondary coil assembly 4 is in the form of a conductive wire or copper sheet. As shown in fig. 3, specifically, one end of the coil pcb 301 is circular, the through hole is located at the center of the circular, the other end is rectangular, and the pad 303 is located at one end of the rectangle, wherein the pad 303 includes one or more parallel holes penetrating through the coil pcb 301, the pads 303 are connected to each other and then fixed on the insulating board 1, and the connection lines (e.g., pins) between the pads 303 are perpendicular to the insulating board 1; and the middle part of the lead or copper sheet adopted by the secondary coil component 4 is also provided with a through hole for the central column 201 to pass through, and the corresponding lead 5 passes through the insulating plate 1 after being connected in parallel and is fixed on the insulating plate 1 to be used as a pin of the transformer, in a specific embodiment, the pin corresponding to the primary coil component 3 and the lead 5 of the secondary coil component 4 are respectively positioned at two ends of the insulating plate 1, the distance is large, and the insulation and voltage resistance grade is further improved. Of course, in other embodiments, the corresponding coil form may be selected in practical cases, and is not limited herein.
In this embodiment, each coil pcb 301 is a multilayer pcb, and may have 4, 6, 8, 10, or more layers. The insulating plate 1 is a rigid epoxy plate or other insulating fixing material without electrical properties.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (6)
1. A high-voltage planar transformer is characterized by comprising an insulating plate (1), a magnetic core (2), a plurality of primary coil assemblies (3) and a plurality of secondary coil assemblies (4), wherein the magnetic core (2) is fixed on the insulating plate (1), at least part of the primary coil assemblies (3) and/or part of the secondary coil assemblies (4) comprise a coil printed circuit board (301) and a coil (302), a through hole for a central column (201) of the magnetic core (2) to pass through is formed in the coil printed circuit board (301), the coil (302) is wound on the coil printed circuit board (301) by taking the through hole as the center, and welding pads (303) are arranged at two ends of the coil (302); the secondary coil assembly (4) is sleeved on the middle column (201) of the magnetic core (2), and the secondary coil assembly (4) and the primary coil assembly (3) are arranged in a vertically staggered mode; and the bonding pads (303) of the coils are connected with each other and then fixed on the insulating plate (1).
2. High voltage planar transformer according to claim 1, characterized in that part of the primary coil assembly (3) or part of the secondary coil assembly (4) is a wire or a copper sheet.
3. The high-voltage planar transformer according to claim 2, wherein when the primary coil assembly (3) or a part of the secondary coil assembly (4) is a wire or a copper sheet, the leads (5) of the corresponding coil assembly are connected in parallel, pass through the insulating plate (1), and are fixed on the insulating plate (1) to serve as pins of the transformer.
4. A high-voltage planar transformer according to claim 1, 2 or 3, characterized in that each of said coil printed circuit boards (301) is a multilayer circuit board.
5. A high voltage planar transformer according to claim 4, wherein the pad (303) comprises one or more parallel holes through the coil printed circuit board (301).
6. High voltage planar transformer according to claim 1 or 2 or 3, characterized in that the insulating plate (1) is a rigid epoxy plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922293315.0U CN211016729U (en) | 2019-12-18 | 2019-12-18 | High-voltage planar transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922293315.0U CN211016729U (en) | 2019-12-18 | 2019-12-18 | High-voltage planar transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211016729U true CN211016729U (en) | 2020-07-14 |
Family
ID=71479396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922293315.0U Active CN211016729U (en) | 2019-12-18 | 2019-12-18 | High-voltage planar transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211016729U (en) |
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2019
- 2019-12-18 CN CN201922293315.0U patent/CN211016729U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A high voltage planar transformer Effective date of registration: 20210427 Granted publication date: 20200714 Pledgee: Hunan Xingsha Rural Commercial Bank Co.,Ltd. quantang sub branch Pledgor: CHANGSHA GUANGYI CONVERTING TECHNIQUE Co.,Ltd. Registration number: Y2021980003071 |