CN2229709Y - Micro size coupling transformer - Google Patents
Micro size coupling transformer Download PDFInfo
- Publication number
- CN2229709Y CN2229709Y CN 95201749 CN95201749U CN2229709Y CN 2229709 Y CN2229709 Y CN 2229709Y CN 95201749 CN95201749 CN 95201749 CN 95201749 U CN95201749 U CN 95201749U CN 2229709 Y CN2229709 Y CN 2229709Y
- Authority
- CN
- China
- Prior art keywords
- shape
- coupling transformer
- gui
- frame
- chinese character
- 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.)
- Expired - Fee Related
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- Coils Or Transformers For Communication (AREA)
Abstract
The utility model relates to a miniature coupling transformer. The framework of a coil forms the structure of a shape like the Chinese character 'gui'; The utility model an original winding and a minor winding are respectively wound in grooves on both sides of a frame of the shape like the Chinese character 'gui', and a small groove in the middle of the frame is a creepage isolation groove. A middle isolation sheet in a housing is inserted into the small groove in the middle of the frame of the shape like the Chinese character 'gui', and a convex sheet on a bottom cover is also inserted into the small groove in the middle of the frame of the shape like the Chinese character 'gui'. The utility model has the advantages that the creepage path between the two windings is 'peak-valley-peak', so that a creepage distance can be increased, and the safety of devices can be guaranteed.
Description
A kind of miniature coupling becomes device, relates to the coupling transformer that is used for coupling of the household electrical appliance control circuit signal of telecommunication or electrical safety isolation:
At present, use in the coupling transformer at some electronic control units of household electrical appliance, the skeleton of its winding coil mostly is I-shaped or king's font structure.Because the coupling transformer own vol is little, thus between the winding, the dielectric strength and the creepage distance coefficient of safety of the news of winding iron stamen all can not satisfy the desired electrical safety performance index of two electric appliances.Some producers adopt and increase device size, reduce the winding copper factor and solve the problems referred to above.But it is so, just not too practical to the limited household electronic products of installing space.
At above-mentioned deficiency, the purpose of this utility model provides a kind of miniature coupling transformer, and it is under the prerequisite that does not increase size, and electrical security can satisfy the safety requirements of two electric appliances.
The purpose of utility model is achieved in that miniature coupling transformer contains coil, outer cover, coil rack; Coil rack is the shape structure, and former, a pair winding is wound on respectively
In the groove of shape skeleton both sides, the middle sulculus of skeleton is creepage separate slot: the middle partition in the outer cover inserts
The middle sulculus of shape skeleton, the lug on the bottom also inserts
Ask sulculus in the shape skeleton.Coil rack of the present utility model is
The shape structure, and middle partition is arranged on the outer cover, lug is arranged on the bottom, therefore can avoid creepage separate slot " Feng Yifeng " to link to each other, making the creepage approach between two windings is " one paddy, one peak, peak " approach, has increased creepage distance, realized of the requirement of small size device, guaranteed device safety creepage distance.
Below in conjunction with drawings and Examples the miniature coupling transformer that foundation the utility model proposes is described.
The miniature coupling transformer structural representation that accompanying drawing the utility model proposes for foundation.
As shown in drawings, the coil rack (5) in the outer cover is
The shape structure.Former, a pair winding (3) is wound on respectively in the vat of both sides, and its lead-in wire is connected by leading foot (9) respectively draws.Embed iron core (6) in the skeleton (5).When embedding outer cover (2) behind the coil winding, the middle partition (1) in the outer cover embeds
Last, the left and right side of shape skeleton centre sulculus (4).When bottom (7) covered mutually with outer cover, the lug on the bottom (8) embedded the bottom side of the middle sulculus of skeleton.Outer cover
Shape skeleton, bottom are the nonmetallic materials injection moulding.
Claims (1)
1, a kind of little shape coupling transformer.Include coil, coil rack, outer cover.It is characterized in that coil rack is
The shape structure, former, a pair winding is wound on respectively
In the groove of shape skeleton both sides, the middle sulculus of skeleton is creepage separate slot: the middle partition in the outer cover inserts
The middle sulculus of shape skeleton, the lug on the bottom also inserts
The middle sulculus of shape skeleton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95201749 CN2229709Y (en) | 1995-01-19 | 1995-01-19 | Micro size coupling transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95201749 CN2229709Y (en) | 1995-01-19 | 1995-01-19 | Micro size coupling transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2229709Y true CN2229709Y (en) | 1996-06-19 |
Family
ID=33855100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95201749 Expired - Fee Related CN2229709Y (en) | 1995-01-19 | 1995-01-19 | Micro size coupling transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2229709Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785155A (en) * | 2016-08-25 | 2018-03-09 | 无锡市宏利逸电子有限公司 | A kind of improved transformer |
-
1995
- 1995-01-19 CN CN 95201749 patent/CN2229709Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785155A (en) * | 2016-08-25 | 2018-03-09 | 无锡市宏利逸电子有限公司 | A kind of improved transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |