CN109256269A - A kind of high shielding heat dissipation type transformer - Google Patents
A kind of high shielding heat dissipation type transformer Download PDFInfo
- Publication number
- CN109256269A CN109256269A CN201811071368.1A CN201811071368A CN109256269A CN 109256269 A CN109256269 A CN 109256269A CN 201811071368 A CN201811071368 A CN 201811071368A CN 109256269 A CN109256269 A CN 109256269A
- Authority
- CN
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
Abstract
The invention discloses a kind of high shielding heat dissipation type 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 present invention 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 present invention 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.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of high shielding heat dissipation type transformers, effectively avoid EMI
Pollution and heat ageing problem.
In order to solve the above technical problems, the present invention adopts the following technical scheme: a kind of high shielding heat dissipation type transformer, including
The inside of skeleton, the coil windings being wound on skeleton, the magnetic core fitted together with skeleton, the coil windings is equipped with interior screen
Metal tape is covered, the outside of the skeleton is equipped with external shield metal tape, leads between the inner shield metal tape and external shield metal tape
Cross metal joining strips connection.
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 present invention uses inner shield metal tape and external shield metal tape, and the not only interference between inner shield primary and secondary reduces
Distribution capacity reduces electromagnetic radiation, and due to being connected between inner shield metal tape and external shield metal tape by metal joining strips
It connects, in this way, magnetic core surface electronic can be connected to inner shield metal tape by external shield metal tape, is finally grounded to pin, reduces spoke
It penetrates, and the heat in coil can be transferred to external shield metal tape through inner shield metal tape, to reduce coil inside heat
Amount increases transformer thermal ageing resistant capacity.In conclusion the present invention has good heat sinking function and function of shielding.Can have
Effect avoids EMI pollution and heat ageing problem.
Detailed description of the invention
Present invention will be further described below with reference to the accompanying drawings and specific embodiments:
Fig. 1 is top view of the present invention.
Fig. 2 is front view of the present invention.
Fig. 3 is side view of the present invention.
Fig. 4 is the connection schematic diagram of inner shield metal tape of the present invention, external shield metal tape and metal joining strips.
Specific embodiment
As shown in Figures 1 to 4, a kind of high shielding heat dissipation type transformer, including skeleton 4, the coil being wound on skeleton around
The inside of group, the magnetic core fitted together with skeleton, the skeleton housing shell 3, the coil windings is equipped with inner shield metal
The outside of band 2, the skeleton is equipped with external shield metal tape 1, passes through gold between the inner shield metal tape and external shield metal tape
Belong to connecting band 5 to connect.
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.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, is familiar with
The those skilled in the art should be understood that the present invention includes but is not limited to content described in specific embodiment above.It is any
Modification without departing from function and structure principle of the invention is intended to be included in the range of claims.
Claims (3)
1. a kind of high shielding heat dissipation type transformer, fits together including skeleton, the coil windings being wound on skeleton, with 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
Metal tape is connected between the inner shield metal tape and external shield metal tape by metal joining strips.
2. a kind of high shielding heat dissipation type transformer according to claim 1, it is characterised in that: the inner shield metal tape,
External shield metal tape is made of copper foil.
3. a kind of high shielding heat dissipation type transformer according to claim 1, it is characterised in that: the metal joining strips are plating
Tin copper foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811071368.1A CN109256269A (en) | 2018-09-14 | 2018-09-14 | A kind of high shielding heat dissipation type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811071368.1A CN109256269A (en) | 2018-09-14 | 2018-09-14 | A kind of high shielding heat dissipation type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109256269A true CN109256269A (en) | 2019-01-22 |
Family
ID=65046944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811071368.1A Pending CN109256269A (en) | 2018-09-14 | 2018-09-14 | A kind of high shielding heat dissipation type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109256269A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010074116A (en) * | 2008-08-19 | 2010-04-02 | Mitsumi Electric Co Ltd | Transformer |
| CN202487310U (en) * | 2012-03-27 | 2012-10-10 | 合肥吉源电子有限公司 | Novel high shield high frequency transformer |
| CN202632985U (en) * | 2012-06-01 | 2012-12-26 | 珠海市美瑞华医用科技有限公司 | Novel high-frequency transformer |
| CN103165277A (en) * | 2011-12-09 | 2013-06-19 | 比亚迪股份有限公司 | Transformer and manufacturing method thereof |
| CN206022089U (en) * | 2016-08-08 | 2017-03-15 | 东莞市慧创电子有限公司 | Horizontal power transformer |
| CN206532685U (en) * | 2017-03-23 | 2017-09-29 | 珠海市爱能电子有限公司 | Anti-tampering LED transformers |
| CN207134218U (en) * | 2017-07-11 | 2018-03-23 | 合肥艾克比电子科技有限公司 | For reducing the transformer of electromagnetic interference in Switching Power Supply |
| CN208806139U (en) * | 2018-09-14 | 2019-04-30 | 江西欧美亚电子有限公司 | Anti-interference resistant to thermal aging transformer |
-
2018
- 2018-09-14 CN CN201811071368.1A patent/CN109256269A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010074116A (en) * | 2008-08-19 | 2010-04-02 | Mitsumi Electric Co Ltd | Transformer |
| CN103165277A (en) * | 2011-12-09 | 2013-06-19 | 比亚迪股份有限公司 | Transformer and manufacturing method thereof |
| CN202487310U (en) * | 2012-03-27 | 2012-10-10 | 合肥吉源电子有限公司 | Novel high shield high frequency transformer |
| CN202632985U (en) * | 2012-06-01 | 2012-12-26 | 珠海市美瑞华医用科技有限公司 | Novel high-frequency transformer |
| CN206022089U (en) * | 2016-08-08 | 2017-03-15 | 东莞市慧创电子有限公司 | Horizontal power transformer |
| CN206532685U (en) * | 2017-03-23 | 2017-09-29 | 珠海市爱能电子有限公司 | Anti-tampering LED transformers |
| CN207134218U (en) * | 2017-07-11 | 2018-03-23 | 合肥艾克比电子科技有限公司 | For reducing the transformer of electromagnetic interference in Switching Power Supply |
| CN208806139U (en) * | 2018-09-14 | 2019-04-30 | 江西欧美亚电子有限公司 | Anti-interference resistant to thermal aging transformer |
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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 |