CN207572186U - A kind of built-in shielded layer low-frequency transformer - Google Patents
A kind of built-in shielded layer low-frequency transformer Download PDFInfo
- Publication number
- CN207572186U CN207572186U CN201721841584.0U CN201721841584U CN207572186U CN 207572186 U CN207572186 U CN 207572186U CN 201721841584 U CN201721841584 U CN 201721841584U CN 207572186 U CN207572186 U CN 207572186U
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- China
- Prior art keywords
- skeleton
- iron core
- layer
- shielded layer
- built
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- 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.)
- Expired - Fee Related
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
A kind of built-in shielded layer low-frequency transformer, including iron core, the skeleton of iron core outer wrapping, the primary coil that is looped around on skeleton and secondary coil, stitch and non-metal shell on skeleton, coated metal shielded layer in the non-metal shell, the iron core, skeleton, primary coil and secondary coil are wrapped in metal screen layer, and the one side of installation stitch is wrapped up without metal screen layer in the non-metal shell.Gap and outside are enclosed with embedding layer between the enclosure, i.e. iron core, skeleton, primary coil, secondary coil and shielded layer.The utility model provides a kind of low-frequency transformer of built-in shielding case, solves the performance issue that external shielded layer influences exterior insulation pressure resistance.
Description
Technical field
The utility model belongs to field transformer, and in particular to low-frequency transformer structure.
Background technology
The leakage field of low-frequency transformer can influence the normal work of transformer periphery component.At present, it is common outer in the market
Shell is set as metal shield materials or smears the structure of curtain coating, it is resistance to influence exterior insulation by the shielded layer of shell structure
The performance of pressure.The curtain coating majority of other development of novel is high low cost materials, while shield effectiveness is bad.
Invention content
The utility model to solve the above-mentioned problems, provides a kind of low-frequency transformer of built-in shielding case.
A kind of built-in shielded layer low-frequency transformer, including iron core, the skeleton of iron core outer wrapping, the primary that is looped around on skeleton
Coil and secondary coil and the stitch on skeleton further include non-metal shell, and package is golden in the non-metal shell
Belong to shielded layer, the iron core, skeleton, primary coil and secondary coil are wrapped in metal screen layer, in the non-metal shell
The one side for installing stitch is wrapped up without metal screen layer.
Preferably, inside the non-metal shell, i.e., iron core, skeleton, primary coil, secondary coil and metal screen layer it
Between gap and outside be enclosed with embedding layer.
Preferably, the metal screen layer and iron core are separated by embedding layer, and the stitch extends to non-across embedding layer
On the outside of metal shell.
Preferably, the non-metal shell is plastics.
Preferably, the non-metal shell inner surface is coated with curtain coating.
Compared with prior art, the utility model has the advantages that：
1st, the utility model wraps up plastic shell, shield effectiveness is than external shield effectiveness more by built in shielded layer in outside
It is good, while do not interfere with the performance of exterior insulation pressure resistance.
2nd, built-in shielded layer not exclusively wraps up coil and skeleton, iron core is wrapped in, cost has been saved, convenient for stitch
Setting.
Description of the drawings
Fig. 1 is the sectional view of built-in shielded layer low-frequency transformer.
Specific embodiment
The structure of the utility model is further illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1：A kind of built-in shielded layer low-frequency transformer, including iron core 1, iron core outer wrapping skeleton 2, be looped around
Primary coil 3 and secondary coil 4 on skeleton and the stitch 5 on skeleton, iron core, iron core outer wrapping skeleton and
The primary coil and the external coated metal shielded layer 6 of secondary coil being looped around on skeleton, metal screen layer are nonmetallic outer outside
Shell 7.Iron core, skeleton, primary coil and secondary coil are wrapped in metal screen layer, the one side of installation stitch in non-metal shell
No metal screen layer package.The material of non-metal shell does not have particular/special requirement, is cost-effective generally use common plastics shell.
Gap and outside are enclosed with embedding layer 8 between enclosure, i.e. iron core, skeleton, primary coil, secondary coil and shielded layer.Screen
It covers layer and iron core to separate by embedding layer, stitch is extended to across embedding layer on the outside of plastic shell.May be used also to increase shielding properties
To smear common curtain coating in plastic shell inner surface.
Embodiment described above only expresses a kind of embodiment of the utility model, and description is more specific and detailed,
But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.
Claims (5)
1. a kind of built-in shielded layer low-frequency transformer, including iron core, the skeleton of iron core outer wrapping, the primary line that is looped around on skeleton
Circle and secondary coil and the stitch on skeleton, which is characterized in that further include non-metal shell, the non-metal shell
Interior coated metal shielded layer, the iron core, skeleton, primary coil and secondary coil are wrapped in metal screen layer, the non-gold
The one side for belonging to installation stitch in shell is wrapped up without metal screen layer.
2. built-in shielded layer low-frequency transformer according to claim 1, which is characterized in that inside the non-metal shell,
I.e. gap and outside are enclosed with embedding layer between iron core, skeleton, primary coil, secondary coil and shielded layer.
3. built-in shielded layer low-frequency transformer according to claim 2, which is characterized in that the metal screen layer and iron core
It is separated by embedding layer, the stitch is extended to across embedding layer on the outside of non-metal shell.
4. built-in shielded layer low-frequency transformer according to claim 1 or 2, which is characterized in that the non-metal shell is
Plastics.
5. built-in shielded layer low-frequency transformer according to claim 1 or 2, which is characterized in that in the non-metal shell
Surface is coated with curtain coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721841584.0U CN207572186U (en) | 2017-12-25 | 2017-12-25 | A kind of built-in shielded layer low-frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721841584.0U CN207572186U (en) | 2017-12-25 | 2017-12-25 | A kind of built-in shielded layer low-frequency transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207572186U true CN207572186U (en) | 2018-07-03 |
Family
ID=62686091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721841584.0U Expired - Fee Related CN207572186U (en) | 2017-12-25 | 2017-12-25 | A kind of built-in shielded layer low-frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207572186U (en) |
-
2017
- 2017-12-25 CN CN201721841584.0U patent/CN207572186U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180703 Termination date: 20211225 |