CN203850138U - Emergency decree type patch type LED transformer - Google Patents
Emergency decree type patch type LED transformer Download PDFInfo
- Publication number
- CN203850138U CN203850138U CN201420224070.0U CN201420224070U CN203850138U CN 203850138 U CN203850138 U CN 203850138U CN 201420224070 U CN201420224070 U CN 201420224070U CN 203850138 U CN203850138 U CN 203850138U
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- Prior art keywords
- magnetic core
- pin
- coil
- link slot
- catch portion
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- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 6
- 239000000463 material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
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- Coils Or Transformers For Communication (AREA)
Abstract
An emergency decree type patch type LED transformer comprises a frame, coils, a magnetic core, a guiding-out wire and a pin. The coils are wound on the frame. The magnetic core is connected with the coils in a winding mode. One end of the guiding-out wire is connected with the magnetic core. The other end of the guiding-out wire is connected with the pin in a winding mode. The pin is connected with the coil. The pin is arranged at the lower end of the frame. The frame comprises a first connecting groove, a second connecting groove, a first blocking piece part, a second blocking piece part, a first pin connecting part, a second pin connecting part and an outer shell cover. The first blocking piece part and the second blocking piece part are arranged between the first connecting groove and the second connecting groove. The first pin connecting part is connected with the first connecting groove. The second pin connecting part is connected with the second connecting groove. The outer shell cover is arranged between the second connecting groove and the magnetic core. According to the emergency decree type patch type LED transformer, the first blocking piece and the second blocking piece are arranged, so that the creep distance of a primary coil and a secondary coil is increased, meanwhile, the outer shell cover is arranged, the distance between the secondary coil and the magnetic core is increased, and the safety of a product is improved.
Description
Technical field
The utility model relates to a kind of transformer, is specifically related to a kind of safety type adopting surface mounted LED transformer.
Background technology
LED semiconductor lighting, as the emerging energy-conserving product of one, is walked close to huge numbers of families gradually, becomes the inexorable trend of following lighting field.Since within 2003, starting national Semiconductor Lighting, the LED industry of China has obtained developing rapidly, and technology also reaches its maturity; The high performance LED driving power of miniaturization flattening also becomes inexorable trend, therefore the transformer application of SMD structure also increases gradually, although but this structure has reduced product height, but safety distance can not be guaranteed, and the product that particularly exports to European North America must have again safety required distance.
Therefore in the urgent need to designing and developing a kind of adopting surface mounted LED transformer that safety requires that meets, therefore in order to address this problem, carried out a series of R&D work.
Utility model content
The purpose of this utility model is, a kind of safety type adopting surface mounted LED transformer is provided, to overcome the existing above-mentioned shortcoming and defect of prior art.
A kind of safety type adopting surface mounted LED transformer, it is characterized in that, comprise: skeleton, coil, magnetic core, lead-out wire and pin, described coil winding is on skeleton, described magnetic core is connected with coil encircling, and described lead-out wire one end is connected with magnetic core, and the described lead-out wire other end and pin are intertwined and connected, described pin is connected with coil, and described pin is located at skeleton lower end;
Described skeleton comprises: the first link slot, the second link slot, the first catch portion, the second catch portion, the first pin connecting portion, the second pin connecting portion and jacket, between described the first link slot and the second link slot, be provided with the first catch portion and the second catch portion, described the first pin connecting portion is connected with the first link slot, described the second pin connecting portion is connected with the second link slot, and described jacket is located between the second link slot and magnetic core.
Further, described the first catch portion is connected with magnetic core, and described the second catch portion is connected with jacket, between described the first catch portion and the second catch portion, forms end difference.
Further, described jacket comprises: top ends, central portion and bottom, described top ends, central portion and bottom are in turn connected into " Z " shape structure, be fitted and connected vertical with side of top of described top ends and magnetic core, the side of described central portion and magnetic core is longitudinally fitted and connected, and described bottom is connected with the side transverse fit of magnetic core.
Further, described coil comprises: primary coil and secondary coil, and described primary coil is wound in the first link slot, and described secondary coil is wound in the second link slot.
The beneficial effects of the utility model:
The utility model is by setting up the first catch portion and the second catch portion to increase primary coil and secondary coil creepage distance, the ladder with difference in height that the first catch portion and the second catch portion form simultaneously can further increase creepage distance, also set up jacket to increase the distance between secondary coil and magnetic core, increased the fail safe of product.
Brief description of the drawings
Fig. 1 is structure chart of the present utility model.
Fig. 2 is plan structure figure of the present utility model.
Fig. 3 is the structure chart of jacket.
Reference numeral:
Skeleton 100, the first link slot 110, the second link slot 120, the first catch portion 130, the second catch portion 140, the first pin connecting portion 150 and the second pin connecting portion 160.
Jacket 170, top ends 171, central portion 172, bottom 173 and end difference 180.
Coil 200, primary coil 210, secondary coil 220, magnetic core 300, lead-out wire 400 and pin 500.
Embodiment
Below in conjunction with specific embodiment, the utility model is done to progressive explanation.Should be understood that following examples are only for the utility model is described but not for limiting scope of the present utility model.
Embodiment 1
Fig. 1 is structure chart of the present utility model.Fig. 2 is plan structure figure of the present utility model.Fig. 3 is the structure chart of jacket.
As shown in Figure 1, a kind of safety type adopting surface mounted LED transformer comprises: skeleton 100, coil 200, magnetic core 300, lead-out wire 400 and pin 500, coil 200 is wound on skeleton 100, magnetic core 300 with coil 200 around being connected, lead-out wire 400 one end are connected with magnetic core 300, lead-out wire 400 other ends and pin 500 are intertwined and connected, and pin 500 is connected with coil 200, and pin 500 is located at skeleton 100 lower ends.
Skeleton 100 comprises: the first link slot 110, the second link slot 120, the first catch portion 130, the second catch portion 140, the first pin connecting portion 150, the second pin connecting portion 160 and jacket 170, between the first link slot 110 and the second link slot 120, be provided with the first catch portion 130 and the second catch portion 140, the first pin connecting portion 150 is connected with the first link slot 110, the second pin connecting portion 160 is connected with the second link slot 120, and jacket 170 is located between the second link slot 120 and magnetic core 300.
The first catch portion 130 is connected with magnetic core 300, and the second catch portion 140 is connected with jacket 170, between the first catch portion 130 and the second catch portion 140, forms end difference 180.
As shown in Figures 2 and 3, jacket 170 comprises: top ends 171, central portion 172 and bottom 173, top ends 171, central portion 172 and bottom 173 are in turn connected into " Z " shape structure, be fitted and connected vertical with side of top of top ends 171 and magnetic core 300, central portion 172 is longitudinally fitted and connected with the side of magnetic core 300, and bottom 173 is connected with the side transverse fit of magnetic core 300.
Coil 200 comprises: primary coil 210 and secondary coil 220, and primary coil 210 is wound in the first link slot 110, and secondary coil 220 is wound in the second link slot 120.
In the prior art, the structure of SMD transformer does not meet the creepage distance requirement of safety, and the security performance of whole parts can not fully be ensured.In prior art, coil 200 is also made up of primary coil 210 and secondary coil 220, and primary coil 210 is wound in the first link slot 110, and secondary coil 220 is wound in the second link slot 120.Between primary coil 210 and secondary coil 220, have one section of safe distance, this distance should minimum be wanted 3.3mm according to the rules, but prior art can only be accomplished 1mm.
In order to address this problem, further improve the fail safe of product simultaneously, the utility model is from structure, material and the incision of technique three aspects:.
From structure angle, the utility model improves skeleton.Compared with prior art, first be on the basis of the first catch portion 130, to have increased again by the second catch portion 140, in traditional design, due to the width problem of the first catch portion 130, cause its as intercept primary coil 210 and secondary coil 220 vitals time cannot effectively increase creepage distance, and if the width of simple the first catch portion 130 increasing just need to redesign part, the part of specification can all be scrapped in the past, increased cost.Therefore we are on this basis, what select is to increase by the second catch portion 140, the association that the first adjacent catch portion 130 and the second catch portion 140 are formed has effectively increased primary coil 210 and the direct creepage distance of secondary coil 220, meets the requirement of the needed 3.3mm of safety.
On the other hand, another advantage of this design is, there are difference in height in the first catch portion 130 and the second catch portion 140, after connecting, can form end difference 180 between them, and end difference 180 can further increase the creepage distance of primary coil 210 and secondary coil 220.
After having met the creepage distance of primary coil 210 and secondary coil 220, we also will consider the safe distance problem between secondary coil 220 and magnetic core 300.Finally, we are designing a jacket 170 on secondary coil 220, and then assembling magnetic core 300.Be " Z " shape structure and jacket 170 adopts, top ends 171, central portion 172 and bottom 173 are covered on magnetic core 300, have intercepted secondary coil 220 and magnetic core 300 completely, have ensured the fail safe of product.
Aspect material, primary coil 210 adopts three-layer insulated line structure simultaneously.Secondly in magnetic core 300 performances, ensure the advantageous characteristic of transformer, the material that magnetic core choice of material initial permeability is 13000, and magnetic core is carried out to mirror finish to ensure high AL value, and make the minimum 26mH of reaching of excitation inductance of transformer, ensure that transformer can drive whole LED power supply very easily.In manufacture craft, the secondary insulating of product uses the insulating varnish of CLASS F grade to carry out vacuum impregnation, and the moisture resistance performance of product is improved significantly, and the voltage withstand class between primary coil 210 and secondary coil 220 can reach the safe class of 3750V simultaneously.
Above embodiment of the present utility model is illustrated, but the utility model is as limit, only otherwise depart from aim of the present utility model, the utility model can also have various variations.
Claims (4)
1. a safety type adopting surface mounted LED transformer, it is characterized in that, comprise: skeleton (100), coil (200), magnetic core (300), lead-out wire (400) and pin (500), described coil (200) is wound on skeleton (100), described magnetic core (300) with coil (200) around being connected, described lead-out wire (400) one end is connected with magnetic core (300), described lead-out wire (400) other end and pin (500) are intertwined and connected, described pin (500) is connected with coil (200), described pin (500) is located at skeleton (100) lower end,
Described skeleton (100) comprising: the first link slot (110), the second link slot (120), the first catch portion (130), the second catch portion (140), the first pin connecting portion (150), the second pin connecting portion (160) and jacket (170), between described the first link slot (110) and the second link slot (120), be provided with the first catch portion (130) and the second catch portion (140), described the first pin connecting portion (150) is connected with the first link slot (110), described the second pin connecting portion (160) is connected with the second link slot (120), described jacket (170) is located between the second link slot (120) and magnetic core (300).
2. a kind of safety type adopting surface mounted LED transformer according to claim 1, it is characterized in that: described the first catch portion (130) is connected with magnetic core (300), described the second catch portion (140) is connected with jacket (170), between described the first catch portion (130) and the second catch portion (140), forms end difference (180).
3. a kind of safety type adopting surface mounted LED transformer according to claim 1, it is characterized in that: described jacket (170) comprising: top ends (171), central portion (172) and bottom (173), described top ends (171), central portion (172) and bottom (173) are in turn connected into " Z " shape structure, be fitted and connected vertical with side of top of described top ends (171) and magnetic core (300), described central portion (172) is longitudinally fitted and connected with the side of magnetic core (300), described bottom (173) is connected with the side transverse fit of magnetic core (300).
4. a kind of safety type adopting surface mounted LED transformer according to claim 1, it is characterized in that: described coil (200) comprising: primary coil (210) and secondary coil (220), described primary coil (210) is wound in the first link slot (110), and described secondary coil (220) is wound in the second link slot (120).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420224070.0U CN203850138U (en) | 2014-05-04 | 2014-05-04 | Emergency decree type patch type LED transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420224070.0U CN203850138U (en) | 2014-05-04 | 2014-05-04 | Emergency decree type patch type LED transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850138U true CN203850138U (en) | 2014-09-24 |
Family
ID=51563123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420224070.0U Expired - Lifetime CN203850138U (en) | 2014-05-04 | 2014-05-04 | Emergency decree type patch type LED transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601466A (en) * | 2016-12-28 | 2017-04-26 | 河北工业大学 | Visual robot system for extra-high voltage transformer core wafers |
-
2014
- 2014-05-04 CN CN201420224070.0U patent/CN203850138U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601466A (en) * | 2016-12-28 | 2017-04-26 | 河北工业大学 | Visual robot system for extra-high voltage transformer core wafers |
| CN106601466B (en) * | 2016-12-28 | 2018-07-03 | 河北工业大学 | A kind of extra-high voltage transformer iron core patch vision robot's system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |