CN204230005U - A kind of step-down transformer - Google Patents
A kind of step-down transformer Download PDFInfo
- Publication number
- CN204230005U CN204230005U CN201420768733.5U CN201420768733U CN204230005U CN 204230005 U CN204230005 U CN 204230005U CN 201420768733 U CN201420768733 U CN 201420768733U CN 204230005 U CN204230005 U CN 204230005U
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- lower magnetic
- left part
- skeleton
- down transformer
- 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
Links
Abstract
The utility model discloses a kind of step-down transformer, it comprises skeleton, the coil windings be connected on skeleton, the former limit pin being connected to skeleton left part, the secondary pin being connected to skeleton right part and the upper magnetic core be enclosed within skeleton and lower magnetic core, fit in upper magnetic core lower surface and lower magnetic core upper surface, the front end face left part of lower magnetic core, the rear end face left part of lower magnetic core, the lower surface left part of lower magnetic core, the groove two sides left part of lower magnetic core, the groove floor left part of lower magnetic core and the whole left side of lower magnetic core are all connected with some layers of insulating tape.The utility model has the advantage of: structure is simple, and volume is little, and production cost is low.
Description
Technical field
The utility model relates to a kind of transformer, particularly a kind of step-down transformer.
Background technology
The miniaturization of electronic product has impelled the volume of electronic devices and components constantly to diminish, and this also considerably increases design difficulty and the manufacture difficulty of each components and parts.Need to keep certain spacing to prevent high-voltage breakdown between the former limit pin of step-down transformer and magnetic core, the voltage at pin place, former limit is higher, then required between former limit pin and magnetic core spacing is larger, and this just hampers the miniaturization of step-down transformer greatly, at present, under there is the prerequisite of enough spacing between guarantee former limit pin and magnetic core, in order to the smaller volume by step-down transformer, production firm generally all needs to drop into very large R&D fund and designs for the product construction of step-down transformer, thus virtually considerably increasing the production cost of step-down transformer.
Utility model content
The technical problems to be solved in the utility model is, provide a kind of structure simple, volume is little, the step-down transformer that production cost is low.
For solving the problems of the technologies described above, the utility model provides and a kind ofly adopts a kind of step-down transformer of following structure: comprise skeleton, be connected to the coil windings on skeleton, be connected to the former limit pin of skeleton left part, be connected to the secondary pin of skeleton right part and the upper magnetic core be enclosed within skeleton and lower magnetic core, fit in upper magnetic core lower surface and lower magnetic core upper surface, wherein, the front end face left part of lower magnetic core, the rear end face left part of lower magnetic core, the lower surface left part of lower magnetic core, the groove two sides left part of lower magnetic core, the groove floor left part of lower magnetic core and the whole left side of lower magnetic core are all connected with some layers of insulating tape.
Step-down transformer described in the utility model, wherein, insulating tape is 1 ~ 5 layer.
Step-down transformer described in the utility model, wherein, insulating tape is 3 layers.
After adopting said structure, the utility model has the following advantages: due to the front end face left part of lower magnetic core, the rear end face left part of lower magnetic core, the lower surface left part of lower magnetic core, the groove two sides left part of lower magnetic core, the groove floor left part of lower magnetic core and the whole left side of lower magnetic core are all connected with some layers of insulating tape, therefore former limit pin and the insulation property between its lower magnetic core are not only made greatly to increase, thus the spacing between former limit pin and magnetic core can be reduced greatly, and then substantially reduce the volume of the utility model step-down transformer, and insulating tape is with low cost, production firm also designs without the need to the R&D fund that has high input the again product construction for step-down transformer, therefore not only structure is simple to make the utility model step-down transformer, and production cost is also low.
Accompanying drawing explanation
Fig. 1 is the main TV structure appearance schematic diagram of a kind of step-down transformer of the utility model;
Fig. 2 is the stereochemical structure appearance schematic diagram of the lower magnetic core being connected with insulating tape in a kind of step-down transformer of the utility model;
Fig. 3 be the lower magnetic core being connected with insulating tape in a kind of step-down transformer of the utility model look up construction profile schematic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, a kind of step-down transformer of the utility model is described in further detail.
As Fig. 1, shown in Fig. 2 and Fig. 3, in this embodiment, a kind of step-down transformer of the utility model comprises skeleton 1, be connected to the coil windings 2 on skeleton 1, be connected to the former limit pin 3 of skeleton 1 left part, be connected to the secondary pin 4 of skeleton 1 right part and the upper magnetic core 5 be enclosed within skeleton 1 and lower magnetic core 6, fit in upper magnetic core 5 lower surface and lower magnetic core 6 upper surface, the front end face left part of lower magnetic core 6, the rear end face left part of lower magnetic core 6, the lower surface left part of lower magnetic core 6, the groove two sides left part of lower magnetic core 6, the groove floor left part of lower magnetic core 6 and the whole left side of lower magnetic core 6 all connect the insulating tape 7 that haves three layers.
Above-described embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection range that the utility model claims determine.
Claims (3)
1. a step-down transformer, comprise skeleton (1), be connected to the coil windings (2) on skeleton (1), be connected to former limit pin (3) of skeleton (1) left part, be connected to the secondary pin (4) of skeleton (1) right part and the upper magnetic core (5) be enclosed within skeleton (1) and lower magnetic core (6), fit in described upper magnetic core (5) lower surface and lower magnetic core (6) upper surface, it is characterized in that: the front end face left part of described lower magnetic core (6), the rear end face left part of lower magnetic core (6), the lower surface left part of lower magnetic core (6), the groove two sides left part of lower magnetic core (6), the groove floor left part of lower magnetic core (6) and the whole left side of lower magnetic core (6) are all connected with some layers of insulating tape (7).
2. step-down transformer according to claim 1, is characterized in that: described insulating tape (7) is 1 ~ 5 layer.
3. step-down transformer according to claim 2, is characterized in that: described insulating tape (7) is 3 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420768733.5U CN204230005U (en) | 2014-12-05 | 2014-12-05 | A kind of step-down transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420768733.5U CN204230005U (en) | 2014-12-05 | 2014-12-05 | A kind of step-down transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204230005U true CN204230005U (en) | 2015-03-25 |
Family
ID=52928072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420768733.5U Expired - Fee Related CN204230005U (en) | 2014-12-05 | 2014-12-05 | A kind of step-down transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204230005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11551848B2 (en) | 2017-11-09 | 2023-01-10 | Huawei Digital Power Technologies Co., Ltd. | Planar transformer and switching power adapter |
-
2014
- 2014-12-05 CN CN201420768733.5U patent/CN204230005U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11551848B2 (en) | 2017-11-09 | 2023-01-10 | Huawei Digital Power Technologies Co., Ltd. | Planar transformer and switching power adapter |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20161205 |