CN214672132U - High-temperature-resistant high-frequency transformer - Google Patents
High-temperature-resistant high-frequency transformer Download PDFInfo
- Publication number
- CN214672132U CN214672132U CN202120478269.6U CN202120478269U CN214672132U CN 214672132 U CN214672132 U CN 214672132U CN 202120478269 U CN202120478269 U CN 202120478269U CN 214672132 U CN214672132 U CN 214672132U
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- CN
- China
- Prior art keywords
- coil winding
- iron core
- foam
- frequency transformer
- heat conduction
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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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- 238000004804 winding Methods 0.000 claims abstract description 45
- 239000006260 foam Substances 0.000 claims abstract description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052802 copper Inorganic materials 0.000 claims abstract description 17
- 239000010949 copper Substances 0.000 claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000741 silica gel Substances 0.000 claims abstract description 15
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 description 11
- 230000005611 electricity Effects 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- -1 this Chemical compound 0.000 description 1
Images
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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model provides a high temperature resistant high frequency transformer, outer iron core and inlayer iron core and the coil winding of winding on the inlayer iron core including a body coupling, coil winding inner wall side is provided with the heat conduction copper bar, coil winding surface parcel has heat conduction silica gel, the outside of outer iron core is provided with the foam fin, the wind groove of indent is seted up on foam fin surface, foam fin inboard side an organic whole is provided with the jack catch. So that the heat in the coil winding is dissipated and the heat-resisting effect is improved.
Description
Technical Field
The utility model relates to a high temperature resistant high frequency transformer belongs to high frequency transformer technical field.
Background
The high-frequency transformer is the most important component of the switching power supply. There are many topologies in switching power supplies. For example, in a half-bridge power conversion circuit, two switching transistors are conducted in turn to generate a high-frequency pulse wave of 100kHz during operation, then a high-frequency transformer transforms the voltage and outputs alternating current, and the turn ratio of each winding coil of the high-frequency transformer determines the output voltage. The most prominent of typical half-bridge transformation circuits are three high-frequency transformers: the transformer comprises a main transformer, a driving transformer and an auxiliary transformer (standby transformer), wherein each transformer has a respective standard in national regulations, for example, the diameter (height) of a magnetic core of the main transformer is not less than 35mm as long as the power supply is more than 200W. And the auxiliary transformer is enough when the power supply power does not exceed 300W, and the diameter of a magnetic core of the auxiliary transformer reaches 16 mm.
In the prior art, the resistance of the high-frequency transformer in the coil winding can bring large heat, the electromagnetic induction effect caused by high-frequency oscillation is enhanced, the coil winding is internally self-heated like a microwave oven, so that the heat in the coil winding is dissipated, the effective isolation and protection of the coil winding are ensured, the heat-resistant effect is improved, and a high-temperature-resistant high-frequency transformer is urgently needed to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-temperature resistant high-frequency transformer to solve the problem of proposing in the above-mentioned background art.
In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a high temperature resistant high frequency transformer, includes outer iron core and inlayer iron core of a body coupling and the coil winding of winding on the inlayer iron core, coil winding inner wall side is provided with the heat conduction copper bar, coil winding surface parcel has heat conduction silica gel, the outside of outer iron core is provided with the foam fin, the wind groove of indent is seted up on the foam fin surface, foam fin inner wall side an organic whole is provided with the jack catch.
Furthermore, the foam radiating fins are of foam porous structures, and are made of high-thermal-conductivity metal.
Further, heat conduction copper bar intermediate position and heat conduction silica gel contact each other, heat conduction copper bar both ends and jack catch contact.
Furthermore, a clamping groove matched with the clamping jaw is formed in the outer wall side of the outer layer iron core.
Furthermore, the input end of the coil winding is electrically connected with an electric inlet connector, and the output end of the coil winding is electrically connected with an electric outlet connector.
Furthermore, the outer sides of the electricity inlet joint and the electricity outlet joint are all sleeved with ceramic protective covers.
The utility model has the advantages that:
1. the foam radiating fin of the utility model is of a foam porous structure, the material of the foam radiating fin is high heat-conducting metal, and the surface of the foam radiating fin is provided with an inward concave air groove, so that the heat on the surface of the foam radiating fin can be quickly dissipated into the air, and the heat exchange rate is improved;
2. the utility model discloses a heat conduction copper bar intermediate position and heat conduction silica gel contact each other, and heat conduction copper bar both ends contact with the jack catch, and the heat on the coil winding passes to heat conduction copper bar through heat conduction silica gel like this, then transmits to the foam fin, and the heat on the coil winding is in time dredged away, and heat conduction silica gel can protect the coil winding to prevent high temperature oxidation in addition;
3. the utility model discloses an input electricity of coil winding is connected with into the electric joint, and the output electricity of coil winding is connected with out the electric joint, advances the electric joint and goes out the electric joint outside and all overlap and be equipped with the ceramic safety cover, plays high temperature resistant insulating effect.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural diagram of a high-temperature-resistant high-frequency transformer of the present invention;
fig. 2 is a cross-sectional view of a high-temperature resistant high-frequency transformer according to the present invention;
fig. 3 is a top view of the high-temperature resistant high-frequency transformer of the present invention;
in the figure: 1 foam cooling fin, 101 jack catch, 102 wind groove, 2 advance electrical connector, 3 outer iron cores, 4 coil windings, 5 inlayer iron cores, 6 heat conduction copper bars, 7 heat conduction silica gel, 8 play electrical connectors.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a high temperature resistant high frequency transformer, outer iron core 3 and inlayer iron core 5 including a body coupling, and coil winding 4 of winding on inlayer iron core 5, 4 inner wall sides of coil winding are provided with heat conduction copper bar 6, 4 surface wrapping of coil winding have heat conduction silica gel 7, the outside of outer iron core 3 is provided with foam cooling fin 1, the wind groove 102 of indent is seted up on foam cooling fin 1 surface, 1 inner wall sides of foam cooling fin an organic whole is provided with jack catch 101, the easy great heat that produces of high frequency transformer coil winding 4 in the past has been solved, need dispel the heat and the problem of heat-resisting protection.
The utility model discloses a foam cooling fin 1 is the porous structure of foaminess, and foam cooling fin 1 material is high heat conduction metal, and the wind groove 102 of indent is seted up on foam cooling fin 1 surface, and 1 surface heat of foam cooling fin of being convenient for is scattered fast to the air in, improves the heat exchange rate.
The utility model discloses a 6 intermediate positions of heat conduction copper bar and heat conduction silica gel 7 contact each other, 6 both ends of heat conduction copper bar and jack catch 101 contact, and the heat on the coil winding 4 passes to heat conduction copper bar 6 through heat conduction silica gel 7, transmits to foam cooling fin 1 afterwards, and the heat on the coil winding 4 in time dredges from, and heat conduction silica gel 7 can protect coil winding 4 to prevent high-temperature oxidation in addition.
The utility model discloses a 3 outer wall sides of outer iron core have been seted up with jack catch 101 assorted draw-in grooves, make foam cooling fin 1 effective with 3 fixed blocks of outer iron core, the heat on 3 surfaces of outer iron core also can in time transmit to foam cooling fin 1 in addition.
The utility model discloses an input electricity of coil winding 4 is connected with into electrical connector 2, and the output electricity of coil winding 4 is connected with out electrical connector 8, advances electrical connector 2 and goes out the electrical connector 8 outside and all overlap and be equipped with the ceramic safety cover, plays high temperature resistant insulating effect.
As an embodiment of the present invention: the input end of the coil winding 4 is connected with a power supply needing voltage transformation through the power inlet connector 2, and the output end of the coil winding 4 is connected with the power supply after voltage transformation through the power outlet connector 8;
when the coil winding 4 generates large heat and the electromagnetic induction caused by high-frequency oscillation heats the coil, the temperature of the coil winding 4 is increased rapidly, at the moment, the heat on the coil winding 4 is transferred to the heat-conducting copper strip 6 through the heat-conducting silica gel 7, then the heat-conducting copper strip 6 is transferred to the foam radiating fin 1, the heat on the surface of the foam radiating fin 1 is rapidly dissipated into the air, and in addition, the heat-conducting silica gel 7 protects the coil winding 4 from high-temperature oxidation;
and finally, ceramic protective covers are sleeved on the outer sides of the power inlet connector 2 and the power outlet connector 8 of the coil winding 4, so that the high-temperature-resistant insulating effect is achieved.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a high temperature resistant high frequency transformer, includes outer iron core (3) and inlayer iron core (5) of body coupling and coil winding (4) of winding on inlayer iron core (5), its characterized in that: coil winding (4) inner wall side is provided with heat conduction copper bar (6), coil winding (4) surface coating has heat conduction silica gel (7), the outside of outer iron core (3) is provided with foam fin (1), air duct (102) of indent are seted up on foam fin (1) surface, foam fin (1) inner wall side an organic whole is provided with jack catch (101).
2. The high-temperature-resistant high-frequency transformer according to claim 1, characterized in that: the foam radiating fins (1) are of foam porous structures, and the foam radiating fins (1) are made of high-thermal-conductivity metal.
3. The high-temperature-resistant high-frequency transformer according to claim 1, characterized in that: the heat conduction copper bar (6) intermediate position and heat conduction silica gel (7) are contacted each other, heat conduction copper bar (6) both ends and jack catch (101) contact.
4. The high-temperature-resistant high-frequency transformer according to claim 1, characterized in that: and a clamping groove matched with the clamping jaw (101) is formed in the outer wall side of the outer layer iron core (3).
5. The high-temperature-resistant high-frequency transformer according to claim 1, characterized in that: the input end of the coil winding (4) is electrically connected with an electric inlet connector (2), and the output end of the coil winding (4) is electrically connected with an electric outlet connector (8).
6. The high-temperature-resistant high-frequency transformer according to claim 5, characterized in that: and ceramic protective covers are sleeved on the outer sides of the power inlet connector (2) and the power outlet connector (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120478269.6U CN214672132U (en) | 2021-03-05 | 2021-03-05 | High-temperature-resistant high-frequency transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120478269.6U CN214672132U (en) | 2021-03-05 | 2021-03-05 | High-temperature-resistant high-frequency transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214672132U true CN214672132U (en) | 2021-11-09 |
Family
ID=78451282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120478269.6U Expired - Fee Related CN214672132U (en) | 2021-03-05 | 2021-03-05 | High-temperature-resistant high-frequency transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214672132U (en) |
-
2021
- 2021-03-05 CN CN202120478269.6U patent/CN214672132U/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 |
Granted publication date: 20211109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |