CN214476917U - Novel high-frequency transformer - Google Patents
Novel high-frequency transformer Download PDFInfo
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- CN214476917U CN214476917U CN202120611270.1U CN202120611270U CN214476917U CN 214476917 U CN214476917 U CN 214476917U CN 202120611270 U CN202120611270 U CN 202120611270U CN 214476917 U CN214476917 U CN 214476917U
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- frequency transformer
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- connecting seat
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Abstract
The utility model discloses a novel high-frequency transformer relates to transformer technical field, solves the poor technical problem of current transformer shielding effect, the utility model discloses a hollow structure's bobbin, the lower extreme of bobbin is equipped with the connecting seat, and the upper end of bobbin is equipped with the limiting plate, and the periphery of bobbin is equipped with primary, insulating layer, secondary from inside to outside in proper order, and secondary's the outside is equipped with the nanocrystalline shielding layer of wrapping up secondary, primary completely. The utility model discloses a set up the nanocrystalline shielding layer and wrap up secondary coil, primary coil completely, can play effectual magnetic screen effect, the magnetic screen rate reaches more than 95%, and the signal that PCB circuit board was disturbed in the magnetic leakage that has significantly reduced guarantees the stability of the work of PCB circuit board.
Description
Technical Field
The utility model relates to a transformer technical field, more specifically say, it relates to a novel high frequency transformer.
Background
The high-frequency transformer is a power transformer with the working frequency exceeding the intermediate frequency (10kHz), is mainly used as a high-frequency switching power transformer in a high-frequency switching power supply, and is also used as a high-frequency inverter power transformer in a high-frequency inverter power supply and a high-frequency inverter welding machine.
A high frequency transformer for PCB circuit board because lack effectual magnetic screen, the signal of PCB circuit board can greatly be disturbed to high frequency transformer's magnetic leakage in practical application process to influence the stability of the work of PCB circuit board.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is not enough to the above-mentioned of prior art, the utility model aims at providing a novel high frequency transformer that magnetic screen is effectual.
The technical scheme of the utility model is that: the utility model provides a novel high-frequency transformer, includes hollow structure's bobbin, the lower extreme of bobbin is equipped with the connecting seat, the upper end of bobbin is equipped with the limiting plate, the periphery of bobbin is equipped with primary, insulating layer, secondary in proper order from inside to outside, secondary's the outside be equipped with secondary, the nanocrystalline shielding layer that primary wrapped up completely.
As a further improvement, the nanocrystalline shielding layer is made of nanocrystalline soft magnetic alloy sheets.
Furthermore, the nanocrystalline shielding layer is 3-5 nanocrystalline soft magnetic alloy sheets.
Furthermore, an insulating protective layer is arranged on the periphery of the nanocrystalline shielding layer.
Furthermore, one side of the bottom of the connecting seat is provided with a first pin electrically connected with two ends of the primary coil, and the side surface of the connecting seat is provided with a first lead slot corresponding to the first pin.
Furthermore, a second pin electrically connected with two ends of the secondary coil is arranged on the other side of the bottom of the connecting seat, and a second lead slot corresponding to the second pin is arranged on the side face of the connecting seat.
Furthermore, the electronic device also comprises two E-shaped iron cores, wherein the middle pin of one E-shaped iron core is inserted into the winding frame from the top of the limiting plate, the middle pin of the other E-shaped iron core is inserted into the winding frame from the bottom of the connecting seat, and the two E-shaped iron cores are folded to wrap the winding frame.
Further, the top of limiting plate be equipped with the first constant head tank of E type iron core adaptation, the lateral wall of connecting seat be equipped with the second constant head tank of E type iron core adaptation.
Furthermore, the side walls of the limiting plates on the two sides of the first positioning groove are respectively provided with a process positioning groove.
Advantageous effects
Compared with the prior art, the utility model, the advantage that has does:
the utility model discloses a set up the nanocrystalline shielding layer and wrap up secondary coil, primary coil completely, can play effectual magnetic screen effect, the magnetic screen rate reaches more than 95%, and the signal that PCB circuit board was disturbed in the magnetic leakage that has significantly reduced guarantees the stability of the work of PCB circuit board.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the middle bobbin of the present invention.
Wherein: the structure comprises a bobbin 1, a connecting seat 2, a limiting plate 3, a primary coil 4, an insulating layer 5, a secondary coil 6, a nanocrystalline shielding layer 7, an insulating protective layer 8, a first pin 9, a first lead slot 10, a second pin 11, a second lead slot 12, a second lead slot 13-E type iron core, a first positioning slot 14, a second positioning slot 15 and a process positioning slot 16.
Detailed Description
The invention will be further described with reference to specific embodiments shown in the drawings.
Referring to fig. 1 and 2, a novel high-frequency transformer comprises a hollow bobbin 1, a connecting seat 2 is arranged at the lower end of the bobbin 1, a limiting plate 3 is arranged at the upper end of the bobbin 1, a primary coil 4, an insulating layer 5 and a secondary coil 6 are sequentially arranged on the periphery of the bobbin 1 from inside to outside, and a nanocrystalline shielding layer 7 which completely wraps the secondary coil 6 and the primary coil 4 is arranged on the outer side of the secondary coil 6. By completely wrapping the secondary coil 6 and the primary coil 4 through the nanocrystalline shielding layer 7, an effective magnetic shielding effect can be achieved, the magnetic shielding rate reaches more than 95%, magnetic flux leakage interference signals of the PCB are greatly reduced, and the working stability of the PCB is guaranteed.
In this embodiment, the nanocrystalline shielding layer 7 is made of a nanocrystalline soft magnetic alloy sheet, and preferably, the nanocrystalline shielding layer 7 is a 3-5 layers of nanocrystalline soft magnetic alloy sheets, so that an effective magnetic shielding effect can be ensured, materials can be saved, and the cost is reduced. An insulating protective layer 8 is arranged on the periphery of the nanocrystalline shielding layer 7, and can play a role in insulating protection.
The utility model discloses still include two E type iron cores 13, in one of them E type iron core 13's centre was participated in and is inserted bobbin 1 from limiting plate 3's top, another E type iron core 13's centre is participated in and is inserted bobbin 1 from the bottom of connecting seat 2, and two E type iron cores 13 close up and wrap up bobbin 1. The top of limiting plate 3 is equipped with the first constant head tank 14 with E type iron core 13 adaptation, and the lateral wall of connecting seat 2 is equipped with the second constant head tank 15 with E type iron core 13 adaptation, two E type iron cores 13 of easy to assemble.
The side walls of the limiting plates 3 at the two sides of the first positioning groove 14 are respectively provided with a process positioning groove 16 for fixing the winding frame 1 when the primary coil 4 and the secondary coil 6 are wound, so that the assembly is convenient.
The above is only a preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility of the invention and the utility of the patent.
Claims (9)
1. The utility model provides a novel high-frequency transformer, its characterized in that, bobbin (1) including hollow structure, the lower extreme of bobbin (1) is equipped with connecting seat (2), the upper end of bobbin (1) is equipped with limiting plate (3), the periphery of bobbin (1) is equipped with primary coil (4), insulating layer (5), secondary coil (6) from inside to outside in proper order, the outside of secondary coil (6) be equipped with secondary coil (6), nanocrystalline shielding layer (7) that primary coil (4) wrapped up completely.
2. The novel high-frequency transformer according to claim 1, characterized in that said nanocrystalline shielding layer (7) is made of nanocrystalline soft magnetic alloy sheet.
3. The novel high-frequency transformer according to claim 2, wherein the nanocrystalline shielding layer (7) is a thin sheet of 3-5 layers of nanocrystalline soft magnetic alloy.
4. The novel high-frequency transformer according to claim 1, characterized in that the periphery of the nanocrystalline shielding layer (7) is provided with an insulating protective layer (8).
5. The novel high-frequency transformer according to claim 1, wherein a first pin (9) electrically connected to two ends of the primary coil (4) is disposed on one side of the bottom of the connecting base (2), and a first lead slot (10) corresponding to the first pin (9) is disposed on a side of the connecting base (2).
6. The novel high-frequency transformer according to claim 1, wherein a second pin (11) electrically connected to two ends of the secondary coil (6) is disposed on the other side of the bottom of the connecting seat (2), and a second lead slot (12) corresponding to the second pin (11) is disposed on the side of the connecting seat (2).
7. The novel high-frequency transformer according to any one of claims 1 to 6, characterized by further comprising two E-shaped iron cores (13), wherein the middle pin of one E-shaped iron core (13) is inserted into the bobbin (1) from the top of the limiting plate (3), the middle pin of the other E-shaped iron core (13) is inserted into the bobbin (1) from the bottom of the connecting seat (2), and the two E-shaped iron cores (13) are closed to wrap the bobbin (1).
8. The novel high-frequency transformer according to claim 7, wherein a first positioning groove (14) matched with the E-shaped iron core (13) is formed at the top of the limiting plate (3), and a second positioning groove (15) matched with the E-shaped iron core (13) is formed in the side wall of the connecting seat (2).
9. The novel high-frequency transformer according to claim 8, characterized in that the side walls of the limiting plate (3) at two sides of the first positioning groove (14) are respectively provided with a process positioning groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120611270.1U CN214476917U (en) | 2021-03-26 | 2021-03-26 | Novel high-frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120611270.1U CN214476917U (en) | 2021-03-26 | 2021-03-26 | Novel high-frequency transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214476917U true CN214476917U (en) | 2021-10-22 |
Family
ID=78160348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120611270.1U Active CN214476917U (en) | 2021-03-26 | 2021-03-26 | Novel high-frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214476917U (en) |
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2021
- 2021-03-26 CN CN202120611270.1U patent/CN214476917U/en active Active
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