CN204066965U - A kind of transformer for switching power supply - Google Patents
A kind of transformer for switching power supply Download PDFInfo
- Publication number
- CN204066965U CN204066965U CN201420488902.XU CN201420488902U CN204066965U CN 204066965 U CN204066965 U CN 204066965U CN 201420488902 U CN201420488902 U CN 201420488902U CN 204066965 U CN204066965 U CN 204066965U
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- CN
- China
- Prior art keywords
- coil
- winding
- coil rack
- magnetic core
- transformer
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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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Abstract
The utility model discloses a kind of transformer for switching power supply, it comprises coil rack, and be hollow windings portion in the middle of it, winding section is wound with coil windings, has the mountain shaped magnetic core that two openings can be involutory outside described coil rack; The center of mountain shaped magnetic core is the magnetic post of column structure; The magnetic post of the centre of described two chevron magnetic cores stretches to the hollow interior docking of winding section; Be provided with pin bottom described coil rack, have the end of a thread to draw in described coil windings and be connected on pin; The winding section of coil rack is wound with armature winding successively, shielded coil, armature winding is contrary with the direction of winding of secondary winding; Secondary winding and feedback coil, between armature winding and shielded coil, be provided with insulating tape between shielded coil and secondary winding and between secondary winding and feedback coil; Also comprise block capacitor, itself and primary windings connected in series; The surrounding side of described coil rack is by the bonding one deck heat-dissipating casing of heat conduction casting glue, and the upper and lower side of heat-dissipating casing is open ports.
Description
Technical field
The utility model relates to electronic component technology field, is specifically related to a kind of transformer for switching power supply.
Background technology
In circuit, transformer is widely used element, and transformer function in circuit mainly contains: voltage transformation, impedance transformation, isolation and voltage stabilizing etc.; According to different purposes, the size of transformer and profile are all different; As the improvement direction of transformer device structure, weight and space are important factors, and volume is little, lightweight, and the applicability of the simple transformer of structure is wider; Meanwhile, there are some defects in the transformer of existing Switching Power Supply, comprises:
1, thermal diffusivity is bad, job insecurity;
The structure of the outer coiling secondary coil of 2, simple primary coil causes poor insulativity, and electromagnetic interference is large, also there is leakage field phenomenon simultaneously.
Summary of the invention
Technical problem to be solved in the utility model is that, for above-mentioned deficiency of the prior art, provide a kind of transformer for switching power supply, its good heat dissipation, insulate, and electromagnetic interference is little, decreases leakage field phenomenon simultaneously.
The utility model solves the technical scheme that its technical problem adopts: a kind of transformer for switching power supply, comprise " work " font coil rack, it is the hollow windings portion of column structure in the middle of it, winding section in the middle of described coil rack is wound with coil windings, there is the mountain shaped magnetic core that two openings can be involutory outside described coil rack, be respectively go up a hill type magnetic core and type magnetic core of going down the hill; The center of mountain shaped magnetic core is the magnetic post of column structure; The magnetic post of the centre of described two chevron magnetic cores stretches to the hollow interior docking of winding section; Be provided with pin bottom described coil rack, have the end of a thread to draw in described coil windings and be connected on pin;
The surface of the middle winding section of coil rack is wound with armature winding, shielded coil from the inside to the outside successively, and armature winding is contrary with the direction of winding of secondary winding; Secondary winding and feedback coil, between armature winding and shielded coil, be provided with insulating tape between shielded coil and secondary winding and between secondary winding and feedback coil;
Also comprise block capacitor, itself and primary windings connected in series;
Describedly be wound with coil, be assembled with the surrounding side of the coil rack of mountain shaped magnetic core by the bonding one deck heat-dissipating casing of heat conduction casting glue, the upper and lower side of heat-dissipating casing is open ports.
Further: above-mentioned insulating tape is epoxy adhesive tape.
Further: above-mentioned block capacitor is nonpolarity thin-film capacitor.
A kind of transformer for switching power supply described in the utility model, it has the following advantages:
1, the utility model is by the armature winding on coil rack winding section, by insulating tape dielectric separation between the coil such as shielded coil and secondary winding, achieves reliable electric insulation;
2, the armature winding on the utility model coil rack winding section is contrary with the coiling direction of secondary winding, and the electromagnetic interference that both produce and radiation are cancelled out each other, and decrease the electromagnetic interference of whole transformer; Shielded coil of the present utility model also serves shielding and offsets the effect of interference, and therefore make the Switching Power Supply work of installing this transformer more stable, the electromagnetic interference of transformer is low, not easily affects the work of other components and parts;
3, during the work of the utility model transformer, dissipate after the heat that its coiler part produces is passed to rapidly heat-dissipating casing by heat conduction casting glue, good heat dissipation, working stability;
4, the utility model has been connected block capacitor on armature winding, effectively prevent magnetic bias or leakage field phenomenon.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of embodiment of the present utility model.
Description of reference numerals:
1-pin, 2-shielded coil, 3-insulating tape, 4-armature winding, 5-coil rack, 6-winding section, the upper chevron magnetic core of 7-, 8-secondary winding, chevron magnetic core under 9-, 10-feedback coil, 11-block capacitor, 12-heat conduction casting glue, 13-heat-dissipating casing.
Embodiment
Below in conjunction with drawings and Examples, the utility model embodiment is described:
Fig. 1 shows a kind of embodiment of the present utility model, as shown in the figure, a kind of transformer for switching power supply of the utility model, comprise " work " font coil rack 5, it is the hollow windings portion 6 of column structure in the middle of it, winding section in the middle of described coil rack 5 is wound with coil windings, has the mountain shaped magnetic core that two openings can be involutory, be respectively go up a hill type magnetic core 7 and type magnetic core 9 of going down the hill outside described coil rack 5; The center of mountain shaped magnetic core is the magnetic post of column structure; The magnetic post of the centre of described two chevron magnetic cores stretches to the hollow interior docking of winding section 6; Be provided with pin one bottom described coil rack, have the end of a thread to draw in described coil windings and be connected on pin one;
The surface of the middle winding section of coil rack is wound with armature winding 4 from the inside to the outside successively, shielded coil 2, and armature winding is contrary with the direction of winding of secondary winding; Secondary winding 8 and feedback coil 10, between armature winding 4 and shielded coil 2, be provided with insulating tape 3 between shielded coil and secondary winding 8 and between secondary winding 8 and feedback coil 10;
Also comprise block capacitor 11, it is connected with armature winding 4;
Describedly be wound with coil, be assembled with the surrounding side of the coil rack of mountain shaped magnetic core by the bonding one deck heat-dissipating casing 13 of heat conduction casting glue 12, the upper and lower side of heat-dissipating casing 13 is open ports.
Preferably, above-mentioned insulating tape 3 is epoxy adhesive tape.
Preferably, above-mentioned block capacitor is nonpolarity thin-film capacitor.
By reference to the accompanying drawings the utility model preferred implementation is explained in detail above, but the utility model is not limited to above-mentioned execution mode, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Do not depart from design of the present utility model and scope can make many other and change and remodeling.Should be appreciated that the utility model is not limited to specific execution mode, scope of the present utility model is defined by the following claims.
Claims (3)
1. a transformer for switching power supply, it is characterized in that: comprise " work " font coil rack (5), it is the hollow windings portion (6) of column structure in the middle of it, winding section in the middle of described coil rack (5) is wound with coil windings, there is the mountain shaped magnetic core that two openings can be involutory outside described coil rack (5), be respectively go up a hill type magnetic core (7) and type magnetic core (9) of going down the hill; The center of mountain shaped magnetic core is the magnetic post of column structure; The magnetic post of the centre of described two chevron magnetic cores stretches to the hollow interior docking of winding section (6); Be provided with pin one bottom described coil rack, have the end of a thread to draw in described coil windings and be connected on pin (1);
The surface of the middle winding section of coil rack is wound with armature winding (4) from the inside to the outside successively, shielded coil (2), and armature winding is contrary with the direction of winding of secondary winding; Secondary winding (8) and feedback coil (10), between armature winding (4) and shielded coil (2), be provided with insulating tape (3) between shielded coil and secondary winding (8) and between secondary winding (8) and feedback coil (10);
Also comprise block capacitor (11), it is connected with armature winding (4);
Describedly be wound with coil, be assembled with the surrounding side of the coil rack of mountain shaped magnetic core by the bonding one deck heat-dissipating casing (13) of heat conduction casting glue (12), the upper and lower side of heat-dissipating casing (13) is open ports.
2. a kind of transformer for switching power supply as claimed in claim 1, is characterized in that: described insulating tape (3) is epoxy adhesive tape.
3. a kind of transformer for switching power supply as claimed in claim 1 or 2, is characterized in that: described block capacitor is nonpolarity thin-film capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488902.XU CN204066965U (en) | 2014-08-28 | 2014-08-28 | A kind of transformer for switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488902.XU CN204066965U (en) | 2014-08-28 | 2014-08-28 | A kind of transformer for switching power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204066965U true CN204066965U (en) | 2014-12-31 |
Family
ID=52208422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420488902.XU Expired - Fee Related CN204066965U (en) | 2014-08-28 | 2014-08-28 | A kind of transformer for switching power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204066965U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042634A (en) * | 2015-08-26 | 2015-11-11 | 佛山市顺德区铭派电子有限公司 | High-pressure pack for arc lighter |
| CN107331498A (en) * | 2016-04-28 | 2017-11-07 | 王大彦 | A kind of toroidal transformer of magnetic shielding cylinder embedding |
-
2014
- 2014-08-28 CN CN201420488902.XU patent/CN204066965U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042634A (en) * | 2015-08-26 | 2015-11-11 | 佛山市顺德区铭派电子有限公司 | High-pressure pack for arc lighter |
| CN105042634B (en) * | 2015-08-26 | 2017-07-07 | 佛山市顺德区铭派电子有限公司 | A kind of electric-arc lighter high voltage package |
| CN107331498A (en) * | 2016-04-28 | 2017-11-07 | 王大彦 | A kind of toroidal transformer of magnetic shielding cylinder embedding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20150828 |
|
| EXPY | Termination of patent right or utility model |