CN201796879U - Diode for automobile power generator - Google Patents
Diode for automobile power generator Download PDFInfo
- Publication number
- CN201796879U CN201796879U CN2010202532946U CN201020253294U CN201796879U CN 201796879 U CN201796879 U CN 201796879U CN 2010202532946 U CN2010202532946 U CN 2010202532946U CN 201020253294 U CN201020253294 U CN 201020253294U CN 201796879 U CN201796879 U CN 201796879U
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- CN
- China
- Prior art keywords
- diode
- chip
- lead
- diode lead
- rectifier
- 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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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
Abstract
The utility model relates to a diode for an automobile power generator, which comprises a base, a chip, a diode lead, a protection ring and sealing adhesive. The diode is characterized in that a thin-walled 'U'-shaped stress buffering zone is arranged at an exposed position of the diode lead. The diode has the advantages that when the diode lead bears stress or other external force, the force is avoided from being directly transmitted to the diode chip, so that the chip can be effectively protected from damage.
Description
Technical field
The utility model relates to a kind of pressing type rectifier diode of automobile current generator rectifier, especially a kind of automobile current generator diode.
Background technology
Existing automobile current generator is the straight wire rectifier diode with the pressing type rectifier diode, and its structure is mainly by base, chip, straight wire, guard circle, fluid sealant composition.Usually diode is assemblied on the rectifier of automobile current generator and uses its lead-in wire and rectifier bracket welding.In actual rectifier assembling and generator use, produce the failure mode that causes chip rupture because diode lead is stressed through regular meeting.
When moving, automobile current generator can produce high temperature; rectifier part on the automobile current generator just can expanded by heating; the rectifier part that is connected with diode can produce very big stress because of expanded by heating; and accumulate on the diode lead; the end of diode lead is connected with the chip soldering; the stress that accumulates on the diode lead just can be delivered on the chip; because chip is thin, fragile Si semiconductor; be delivered to the chip upper stress and cause chip rupture through regular meeting; thereby cause whole defective rectifier, the generator cisco unity malfunction.
In addition; in the assembling process of assembling, transportation and the generator of rectifier, diode lead solder-joint is subjected to the touching of external force through regular meeting, and this external force can be delivered to by diode lead and cause chip rupture on the chip; thereby cause whole defective rectifier, the generator cisco unity malfunction.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes prior art; a kind of automobile current generator diode is provided; it is to increase the stressed buffering area of a thin-walled " U " shape can power be sponged by slight deformation on the basis of original structure; avoid directly power being sponged; avoid directly power being delivered on the diode chip for backlight unit, thereby well protect chip to avoid stress or other outside destroy.Significantly reduce the actual effect pattern that rectifier breaks because of diode chip for backlight unit is stressed and causes.
The purpose of this utility model is achieved in that a kind of automobile current generator comprises base with diode, chip, diode lead, guard circle, fluid sealant.It is characterized in that: be provided with the stressed buffering area of a thin-walled " U " shape at the position that diode lead exposes.
The utility model compared with prior art has the following advantages: increase the stressed buffering area of thin-walled " U " shape at the position that diode lead exposes.When diode lead was subjected to stress or other external force, the stressed buffering area of thin-walled " U " shape can sponge power by slight deformation, avoided directly power being delivered on the diode chip for backlight unit, thereby well protected chip to avoid stress or the broken ring of other external force.Significantly reduce the actual effect pattern that rectifier breaks because of diode chip for backlight unit is stressed and causes.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a front view of the present utility model;
Fig. 2 is the B-B profile of Fig. 1;
Among the figure: 1 diode lead, stressed buffering area 3 fluid sealants of 2 " U " shape, 4 guard circles, 5 chips, 6 bases.
Embodiment
With reference to Fig. 1, Fig. 2, the utility model comprises base 6, chip 5, diode lead 1, guard circle 4, fluid sealant 3.Be provided with the stressed buffering area 2 of a thin-walled " U " shape at the position that diode lead 1 exposes.When making diode lead 1 with diel with circular diode lead 1 center crush, with Bending Mould diode lead 1 is flattened part again and is converted into " U " shape.Chip 5 is placed on the base 6 that scribbles the scolding tin material; and coat the scolding tin material again at chip 5 upper surfaces; put diode lead 1 at chip 5; putting into the high temperature furnace heating makes the fusing of scolding tin material that base 6, chip 5 and diode lead 1 are welded together; then guard circle 4 is contained on the base 6, after guard circle 4 is filled with fluid sealant 3 curing, gets final product again.
Claims (1)
1. an automobile current generator diode comprises base, chip, diode lead, guard circle, fluid sealant; It is characterized in that: be provided with the stressed buffering area of a thin-walled " U " shape at the position that diode lead exposes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202532946U CN201796879U (en) | 2010-06-30 | 2010-06-30 | Diode for automobile power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202532946U CN201796879U (en) | 2010-06-30 | 2010-06-30 | Diode for automobile power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201796879U true CN201796879U (en) | 2011-04-13 |
Family
ID=43851780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202532946U Expired - Fee Related CN201796879U (en) | 2010-06-30 | 2010-06-30 | Diode for automobile power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201796879U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522426A (en) * | 2011-11-30 | 2012-06-27 | 上海华力微电子有限公司 | Silicon nanometer wire detecting unit |
| CN107516652A (en) * | 2017-08-18 | 2017-12-26 | 江苏云意电气股份有限公司 | Automobile current generator commutation diode |
-
2010
- 2010-06-30 CN CN2010202532946U patent/CN201796879U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522426A (en) * | 2011-11-30 | 2012-06-27 | 上海华力微电子有限公司 | Silicon nanometer wire detecting unit |
| CN102522426B (en) * | 2011-11-30 | 2014-05-28 | 上海华力微电子有限公司 | Silicon nanometer wire detecting unit |
| CN107516652A (en) * | 2017-08-18 | 2017-12-26 | 江苏云意电气股份有限公司 | Automobile current generator commutation diode |
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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: 20110413 Termination date: 20160630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |