CN205069621U - Ultra -thin high -efficient ABF rectifier bridge - Google Patents
Ultra -thin high -efficient ABF rectifier bridge Download PDFInfo
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- CN205069621U CN205069621U CN201520737182.0U CN201520737182U CN205069621U CN 205069621 U CN205069621 U CN 205069621U CN 201520737182 U CN201520737182 U CN 201520737182U CN 205069621 U CN205069621 U CN 205069621U
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Abstract
The utility model belongs to the technical field of the rectifier bridge, concretely relates to ultra -thin high -efficient ABF rectifier bridge, four frame tablets and four core grains on encapsulation body and encapsulation body, encapsulation body thickness D be 1.10mm, the core grain be ABF core grain, the frame tablet be equipped with welding core grain carry the material platform, carry the square configuration that the material platform is length of side 1.50mm, the core grain is carrying material platform department with the mode welding of reverse welding, the frame tablet is equipped with four pins that extend encapsulation body both sides, the pin bottom face is in encapsulation body bottom face bottom side, the body is thin, it occupies to reduce the space, adopt the mode of reverse welding, it is bad effectively to avoid adjacent soldering tin to fuse the material electrical property that leads to, reverse recovery time is short, small switching loss, high efficiency.
Description
Technical field
The utility model belongs to rectifier bridge technical field, is specifically related to a kind of super-thin high efficient ABF rectifier bridge.
Background technology
Bridge rectifier utilizes the unidirectional general character of diode to carry out rectification, and four diodes, dock between two, and it is two conductings by all means that the positive half of input sine wave is divided, and obtains positive output; The negative half portion timesharing of input sine wave, another two conductings by all means, because this two is reversal connection by all means, divide so export the positive half remaining sinusoidal wave.
Along with electronic product develops to miniaturization, also more and more less, more and more higher to the volume requirement of semiconductor device.Traditional ABS bridge rectifier is due to process technology limit, thickness, greatly about 1.2mm, occupies larger space, and bridge rectifier thickness often reduces a bit its structure all to be needed to readjust, difficulty is large, the efficiency of rectifier can not be ensured, simultaneously in Product jointing process, melt under the solder(ing) paste condition of high temperature, the liquid solder of adjacent position is very easily because the gravitation of molecule merges, cause adjacent core grain to be connected and cause low-voltage tube, direction is long for recovery time, and switching loss is large.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned defect, a kind of super-thin high efficient ABF rectifier bridge is provided, body is thin, reduce volume exclusion, adopt the mode of oppositely welding, effectively avoid adjacent scolding tin to merge the material caused electrically bad, reverse recovery time is short, switching loss is little, and efficiency is high.
The technical scheme that the utility model solves the employing of its technical problem is as follows:
A kind of super-thin high efficient ABF rectifier bridge, comprise four framework tablets in encapsulation main body and encapsulation main body and four core grains, described encapsulation main body thickness D is 1.10mm, described core grain is ABF core grain, described framework tablet is provided with the material containing platform of welding core grain, material containing platform is the square structure of length of side 1.50mm, core grain is welded on material containing platform place in the mode of oppositely welding, framework tablet is provided with four pins extending encapsulation main body both sides, and pin bottom face is in encapsulation main body bottom face bottom side.
Preferably, described encapsulation main body is also packaged with circular arc mark, and circular arc mark thickness is 0.05mm.
Preferably, described encapsulation main body corner arc R is 0.10mm.
Preferably, described pin bottom face and encapsulation main body bottom face distance t are 0.10 ± 0.05mm.
Preferably, the overall length L of super-thin high efficient ABF rectifier bridge is 6.30 ± 0.05mm.
The beneficial effects of the utility model are: adopt such scheme, this ABF rectifier bridge adopts ABF core grain, the mode of oppositely welding is adopted to be welded on the material containing platform place of frame body, ensure that the flowing precision of core grain when welding, effectively prevent that to prevent adjacent scolding tin from merging the material caused electrically bad, substantially increase the time of direction recovery and reduce switching loss, efficiency is high, encapsulation main body thickness is thin, reasonable integral structure, reduces occupying of space.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, aforesaid and other object, the feature and advantage of the utility model will become apparent.
Fig. 1 is front view of the present utility model.
Fig. 2 is right view of the present utility model.
Fig. 3 is upward view of the present utility model.
Wherein: 1 is encapsulation main body, 1.1 is circular arc mark, and 2 is framework tablet, and 2.1 is material containing platform, and 3 is core grain.
Embodiment
Referring to figs. 1 through a kind of super-thin high efficient ABF rectifier bridge shown in Fig. 3, comprise four the framework tablets 2 in encapsulation main body 1 and encapsulation main body 1 and four core grains 3, the plastic packaging material that encapsulation main body 1 adopts is G400 type mixed type material, the thickness D of encapsulation main body 1 is 1.10mm, core grain 3 is ABF1510 core grain, core particle size is 53mil*53mil, framework tablet 2 is provided with the material containing platform 2.1 of welding core grain 3, framework tablet 2 adopts C194, for coordinating the size of core grain 3, material containing platform is the square structure of length of side 1.50mm, core grain 3 is welded on material containing platform 2.1 place in the mode of oppositely welding, framework tablet 2 is provided with four pins extending encapsulation main body 1 both sides, pin lower portion after encapsulation main body is drawn is bent to form bending structure, pin bottom face is made to be in encapsulation main body bottom face bottom side and pin bottom face and encapsulation main body bottom face distance t are 0.10 ± 0.05mm, form heat-dissipating space, improve the efficiency of heat radiation, the efficiency of this rectifier is impelled to improve, pin widths is 0.60mm, encapsulation main body 1 is also packaged with circular arc mark 1.1, the black glue surplus in ABF top only has 0.15mm, in order to ensure the resolution of package strength and circular arc, the thickness b of circular arc mark 1.1 is 0.05mm, for ensureing the intensity of pin side and encapsulation main body 1 side margins and encapsulation main body 1, the corner arc R of encapsulation main body 1 is 0.10mm, bonding force during die sinking can be reduced, reduce the possibility " sheltered evil people and countenance evil practices " in corner, make clearly mould time corner should not remain clear mould bar impurity, the overall length L of shaping rear super-thin high efficient ABF rectifier bridge is 6.30 ± 0.05mm.
During welding, adopt the mode of oppositely welding, before semi-finished product enter soldering furnace, material is inverted, due to the effect of gravity, the scolding tin of high temperature melting can not merge, merge at high operating temperatures to prevent solder(ing) paste, greatly improve the unfailing performance of product, prevent electrically bad, fit structure improves the reverse recovery time of this rectifier, reverse recovery time of the present utility model is greatly about 160ns, relative to 200 ~ 300ns reverse recovery time of the fast quick-recovery bridge rectifier of tradition, recovery time reduces greatly, improve efficiency of the present utility model, greatly reduce the switching loss of this rectifier simultaneously.
The above; it is only preferred embodiment of the present utility model; not any pro forma restriction is done to the utility model, every according in technical spirit of the present utility model to any simple modification, equivalent variations that above embodiment is done, all fall within protection scope of the present invention.
Claims (5)
1. a super-thin high efficient ABF rectifier bridge, comprise four framework tablets in encapsulation main body and encapsulation main body and four core grains, it is characterized in that: described encapsulation main body thickness D is 1.10mm, described core grain is ABF core grain, described framework tablet is provided with the material containing platform of welding core grain, material containing platform is the square structure of length of side 1.50mm, core grain is welded on material containing platform place in the mode of oppositely welding, framework tablet is provided with four pins extending encapsulation main body both sides, and pin bottom face is in encapsulation main body bottom face bottom side.
2. a kind of super-thin high efficient ABF rectifier bridge according to claim 1, is characterized in that: described encapsulation main body is also packaged with circular arc mark, and circular arc mark thickness is 0.05mm.
3. a kind of super-thin high efficient ABF rectifier bridge according to claim 1, is characterized in that: described encapsulation main body corner arc R is 0.10mm.
4. a kind of super-thin high efficient ABF rectifier bridge according to claim 1, is characterized in that: described pin bottom face and encapsulation main body bottom face distance t are 0.10 ± 0.05mm.
5. a kind of super-thin high efficient ABF rectifier bridge according to claim 1, is characterized in that: the overall length L of super-thin high efficient ABF rectifier bridge is 6.30 ± 0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520737182.0U CN205069621U (en) | 2015-09-22 | 2015-09-22 | Ultra -thin high -efficient ABF rectifier bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520737182.0U CN205069621U (en) | 2015-09-22 | 2015-09-22 | Ultra -thin high -efficient ABF rectifier bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205069621U true CN205069621U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520737182.0U Active CN205069621U (en) | 2015-09-22 | 2015-09-22 | Ultra -thin high -efficient ABF rectifier bridge |
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| Country | Link |
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| CN (1) | CN205069621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108389854A (en) * | 2018-05-03 | 2018-08-10 | 扬州虹扬科技发展有限公司 | A kind of ultrathin miniature bridge rectifier |
-
2015
- 2015-09-22 CN CN201520737182.0U patent/CN205069621U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108389854A (en) * | 2018-05-03 | 2018-08-10 | 扬州虹扬科技发展有限公司 | A kind of ultrathin miniature bridge rectifier |
| CN108389854B (en) * | 2018-05-03 | 2024-05-17 | 扬州虹扬科技发展有限公司 | Ultrathin miniature bridge rectifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213022 Changzhou, Jiangsu new North District, Tianmu Lake Road, No. 1 Patentee after: Changzhou Xinghai Electronic Limited by Share Ltd Address before: 213022 Changzhou, Jiangsu new North District, Tianmu Lake Road, No. 1 Patentee before: Changzhou Star Sea Electronics Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |