CN208806139U - Anti-interference resistant to thermal aging transformer - Google Patents
Anti-interference resistant to thermal aging transformer Download PDFInfo
- Publication number
- CN208806139U CN208806139U CN201821501874.5U CN201821501874U CN208806139U CN 208806139 U CN208806139 U CN 208806139U CN 201821501874 U CN201821501874 U CN 201821501874U CN 208806139 U CN208806139 U CN 208806139U
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- China
- Prior art keywords
- metal tape
- shield metal
- skeleton
- inner shield
- external shield
- 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.)
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses a kind of anti-interference resistant to thermal aging transformers, including skeleton, the coil windings being wound on skeleton, the magnetic core fitted together with skeleton, the inside of the coil windings is equipped with inner shield metal tape, the outside of the skeleton is equipped with external shield metal tape, is connected between the inner shield metal tape and external shield metal tape by metal joining strips.The utility model can not only shield the interference between primary and secondary, reduce distribution capacity, electromagnetic radiation is reduced, and due to connecting between inner shield metal tape and external shield metal tape by metal joining strips, in this way, magnetic core surface electronic can be connected to inner shield metal tape by external shield metal tape, it is finally grounded to pin, reduces radiation, and the heat in coil can be transferred to external shield metal tape through inner shield metal tape, to reduce coil inside heat, increase transformer thermal ageing resistant capacity.
Description
Technical field
The utility model relates to transformers.
Background technique
Currently, the developing direction of transformer is good product consistency, size is small easy to install, and behaviour can be automated in plug-in unit
Make, in terms of operating mode.More and more Switching Power Supplies use LLC resonance circuit now, and advantage has can be in input voltage
With load variation range it is very big in the case where have good voltage regulation properties, obtain higher transfer efficiency, higher frequency,
Smaller volume is widely used in the biggish occasion of power.
Currently, high-power transformer is not only easy to be polluted by EMI, but also often heat-sinking capability is bad, is easy to cause heat
Aging causes circuit safety hidden danger instead.So be directed to this status, developing a has competitiveness, more compatible, safe and efficient
Transformer it is more and more important.
Utility model content
Technical problem to be solved in the utility model is just to provide anti-interference resistant to thermal aging transformer, effectively avoids
EMI pollution and heat ageing problem.
In order to solve the above technical problems, the utility model adopts the following technical solution: anti-interference resistant to thermal aging transformer, packet
Include skeleton, the coil windings that are wound on skeleton, the magnetic core fitted together with skeleton, the inside of the coil windings is equipped with interior
Metal tape is shielded, the outside of the skeleton is equipped with external shield metal tape, between the inner shield metal tape and external shield metal tape
It is connected by metal joining strips.
Preferably, the inner shield metal tape, external shield metal tape are made of copper foil.
Preferably, the metal joining strips are tin plating copper foil.
The utility model use inner shield metal tape and external shield metal tape, the not only interference between inner shield primary and secondary,
Distribution capacity is reduced, reduces electromagnetic radiation, and due to connecting between inner shield metal tape and external shield metal tape by metal
Band connection is finally grounded to pin in this way, magnetic core surface electronic can be connected to inner shield metal tape by external shield metal tape, drop
Low emissivity, and the heat in coil can be transferred to external shield metal tape through inner shield metal tape, to reduce in coil
Portion's heat increases transformer thermal ageing resistant capacity.In conclusion the utility model has good heat sinking function and shielding function
Energy.EMI pollution and heat ageing problem can effectively be avoided.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and detailed description:
Fig. 1 is the utility model top view.
Fig. 2 is the utility model front view.
Fig. 3 is the utility model side view.
Fig. 4 is the connection schematic diagram of the utility model inner shield metal tape, external shield metal tape and metal joining strips.
Specific embodiment
As shown in Figures 1 to 4, anti-interference resistant to thermal aging transformer, including skeleton 4, the coil windings being wound on skeleton,
The inside of the magnetic core fitted together with skeleton, the skeleton housing shell 3, the coil windings is equipped with inner shield metal tape 2,
The outside of the skeleton is equipped with external shield metal tape 1, is connected between the inner shield metal tape and external shield metal tape by metal
Tape splicing 5 connects.
Wherein, the inner shield metal tape 2, external shield metal tape 1 are made of copper foil.Using external shield copper foil and interior screen
Copper foil is covered, transformer radiance is substantially reduced, to have good shield effectiveness.
The metal joining strips 5 are tin plating copper foil.Under the conduction of tin plating copper foil, external shield copper foil can be by magnetic core
Surface electronic is connected to inner shield copper foil, and is grounded to pin, reduces radiation, and can be by the heat in coil through inner shield copper
Foil is transferred to external shield copper foil, to reduce coil inside heat, increases transformer thermal ageing resistant capacity.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, being familiar with the those skilled in the art should be understood that the utility model includes but is not limited to retouch in specific embodiment above
The content stated.The modification of any function and structure principle without departing from the utility model is intended to be included in the range of claims
In.
Claims (3)
1. anti-interference resistant to thermal aging transformer is fitted together including skeleton, the coil windings being wound on skeleton and skeleton
Magnetic core, it is characterised in that: the inside of the coil windings is equipped with inner shield metal tape, and the outside of the skeleton is equipped with external shield gold
Belong to band, is connected between the inner shield metal tape and external shield metal tape by metal joining strips.
2. anti-interference resistant to thermal aging transformer according to claim 1, it is characterised in that: the inner shield metal tape, outer
Shielding metal tape is made of copper foil.
3. anti-interference resistant to thermal aging transformer according to claim 1, it is characterised in that: the metal joining strips are tin plating
Copper foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821501874.5U CN208806139U (en) | 2018-09-14 | 2018-09-14 | Anti-interference resistant to thermal aging transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821501874.5U CN208806139U (en) | 2018-09-14 | 2018-09-14 | Anti-interference resistant to thermal aging transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208806139U true CN208806139U (en) | 2019-04-30 |
Family
ID=66237943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821501874.5U Active CN208806139U (en) | 2018-09-14 | 2018-09-14 | Anti-interference resistant to thermal aging transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208806139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256269A (en) * | 2018-09-14 | 2019-01-22 | 江西欧美亚电子有限公司 | A kind of high shielding heat dissipation type transformer |
-
2018
- 2018-09-14 CN CN201821501874.5U patent/CN208806139U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256269A (en) * | 2018-09-14 | 2019-01-22 | 江西欧美亚电子有限公司 | A kind of high shielding heat dissipation type transformer |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant |