CN204792764U - Rectifier diode - Google Patents
Rectifier diode Download PDFInfo
- Publication number
- CN204792764U CN204792764U CN201520515956.5U CN201520515956U CN204792764U CN 204792764 U CN204792764 U CN 204792764U CN 201520515956 U CN201520515956 U CN 201520515956U CN 204792764 U CN204792764 U CN 204792764U
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- CN
- China
- Prior art keywords
- boss
- chip
- conductor wire
- bonding pad
- pier nose
- 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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Abstract
The utility model discloses a rectifier diode, it includes chip (1), bonding pad (2), (3) and conductor wire pole (4) are glued to the plastic envelope, bonding pad (2) set up the both sides in chip (1), and one conductor wire pole (4) of equal fixed connection are gone up in each bonding pad (2), (3) cladding is all glued through the plastic envelope in chip (1) and bonding pad (2), chip (1) is the polygonal body of at least four sides, and each edge of chip (1) all is provided with to chip (1) the convex salient structure of both sides face (5), be provided with pier nose (6) and boss (7) on conductor wire pole (4), boss (7) are connected with pier nose (6), and the cover is equipped with rubber circle (8) on boss (7), conductor wire pole (4) are close to boss (7) and locate to circularize around establishing, pier nose (6) and boss (7) all set up in (3) are glued to the plastic envelope. The beneficial effects of the utility model are that: it has that heat dispersion is good, long service life and the good advantage of antisurge ability.
Description
Technical field
The utility model relates to diode, particularly a kind of rectifier diode.
Background technology
AC generator for vehicle and storage battery form the electric power system of automobile, and the alternating current that alternator frame winding produces needs rectification, become direct current and can supply automotive electrical system use.Rectifier diode is the core devices completing rectification function in generator.Because automobile current generator is arranged near engine, during work, temperature is high, vibration is large, and the heat of the power consumption generation of diode in addition own, diode operation condition is very harsh, therefore very high to the Structural Design Requirement of diode.
Rectifier diode is generally designed to pressing type structure, primarily of base, chip, lead-in wire composition, then with fluid sealant embedding protection.Traditional lead-in wire is made up of heading and line bar two parts.The shortcoming of this lead-in wire is: after diode package, when go between in assembling process stressed bending time, be easy to fluid sealant is broken, thus cause diode fails or the lost of life; On the other hand, the volume correlation of the Surge handling capability of diode and base and lead-in wire, is subject to the restriction of encapsulation volume, and lead-in wire heading part can not be too large, and the lifting of the Surge handling capability of diode is subject to the restriction of lead-in wire heading volume.
Utility model content
The purpose of this utility model is the shortcoming overcoming prior art, provides the rectifier diode that a kind of perfect heat-dissipating, long service life and Surge handling capability are good.
The purpose of this utility model is achieved through the following technical solutions: a kind of rectifier diode, it comprises chip, bonding pad, plastic packaging glue and conductor wire bar, described bonding pad is arranged on the both sides of chip, and each bonding pad is all fixedly connected with a conductor wire bar, described chip and bonding pad are all by moulding sealant covers, described chip is the polygonal body at least four limits, and each bar limit of chip is provided with the projective structure protruded to chip two sides, projective structure is provided with protective layer, described conductor wire bar is provided with pier nose and boss, described boss is connected with pier nose, and rubber ring is arranged with on boss, described conductor wire bar circularizes near the winding of boss place, described pier nose and boss are all arranged in plastic packaging glue.
Described plastic packaging glue is epoxy resin.
Described projective structure is the ennation of arc.
The thickness of described projective structure is 3-5mm.
The diameter of described boss is between pier nose diameter and conductor wire shank diameter
The utility model has the following advantages: rectifier diode of the present utility model, be provided with projective structure, increase the effective area of chip, increase the conducting voltage of forward, reduce electric energy loss, and its area of dissipation is also increased, make being increased by effect area of heat trnasfer, improve heat dispersion; Conductor wire bar is provided with boss, conductor wire bar stressed bending time, boss not easily occurs bending and deformation, its distortion is concentrated on conductor wire bar, and herein away from fluid sealant, fluid sealant can not stressedly break, thus extend the useful life of diode, and boss increases the volume of conductor wire bar, the thermal capacity of conductor wire bar is increased, therefore improves the Surge handling capability of diode.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
In figure, 1-chip, 2-bonding pad, 3-plastic packaging glue, 4-conductor wire bar, 5-projective structure, 6-pier nose, 7-boss, 8-rubber ring.
Embodiment
Be further described the utility model below in conjunction with accompanying drawing, protection range of the present utility model is not limited to the following stated:
As shown in Figure 1, a kind of rectifier diode, it comprises chip 1, bonding pad 2, plastic packaging glue 3 and conductor wire bar 4, described bonding pad 2 is arranged on the both sides of chip 1, and each bonding pad 2 is all fixedly connected with a conductor wire bar 4, described chip 1 and bonding pad 2 are all coated by plastic packaging glue 3, described chip 1 is the polygonal body at least four limits, and each bar limit of chip 1 is provided with the projective structure 5 protruded to chip 1 two sides, projective structure 5 is provided with protective layer, the effect of insulation protection can be played by protective layer, in the present embodiment, described projective structure 5 is the ennation of arc, and its thickness is 3-5mm, preferably, the thickness of projective structure 5 is 4mm, projective structure 5 increases the effective area of chip, increase the conducting voltage of forward, reduce electric energy loss, and its area of dissipation is also increased, make being increased by effect area of heat trnasfer, improve heat dispersion, described conductor wire bar 4 is provided with pier nose 6 and boss 7, described boss 7 is connected with pier nose 6, and rubber ring 8 is arranged with on boss 7, in the present embodiment, the diameter of described boss 7 is between pier nose 6 diameter and conductor wire bar 4 diameter, boss 7 is thicker than conductor wire bar 4, when conductor wire bar 4 stressed bending time, boss 7 not easily occurs bending and deformation, its distortion is concentrated on conductor wire bar 4, herein away from fluid sealant 3, fluid sealant 3 can not stressedly break, boss 7 is also arranged with rubber ring 8, during encapsulation, rubber ring 8 part is embedded in fluid sealant 3, rubber ring 8 can cushion the bending force be subject to further, fluid sealant can not stressedly be broken, and boss 7 increases the volume of conductor wire bar, the thermal capacity of conductor wire bar is increased, therefore the Surge handling capability of diode is improved, described conductor wire bar 4 circularizes near boss 7 place's winding, described pier nose 6 and boss 7 are all arranged in plastic packaging glue 3, during encapsulation, rubber ring 8 part is embedded in fluid sealant 3, rubber ring 8 can cushion the bending force be subject to further, fluid sealant 3 can not stressedly be broken.
In the present embodiment, described plastic packaging glue 3 is epoxy resin.
Claims (5)
1. a rectifier diode, it is characterized in that: it comprises chip (1), bonding pad (2), plastic packaging glue (3) and conductor wire bar (4), described bonding pad (2) is arranged on the both sides of chip (1), and each bonding pad (2) is all fixedly connected with a conductor wire bar (4), described chip (1) and bonding pad (2) are all coated by plastic packaging glue (3), described chip (1) is the polygonal body at least four limits, and each bar limit of chip (1) is provided with the projective structure (5) protruded to chip (1) two sides, projective structure (5) is provided with protective layer, described conductor wire bar (4) is provided with pier nose (6) and boss (7), described boss (7) is connected with pier nose (6), and rubber ring (8) is arranged with on boss (7), described conductor wire bar (4) circularizes near boss (7) place's winding, described pier nose (6) and boss (7) are all arranged in plastic packaging glue (3).
2. a kind of rectifier diode according to claim 1, is characterized in that: described plastic packaging glue (3) is epoxy resin.
3. a kind of rectifier diode according to claim 1, is characterized in that: the ennation that described projective structure (5) is arc.
4. a kind of rectifier diode according to claim 1, is characterized in that: the thickness of described projective structure (5) is 3-5mm.
5. a kind of rectifier diode according to claim 1, is characterized in that: the diameter of described boss (7) is between pier nose (6) diameter and conductor wire bar (4) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520515956.5U CN204792764U (en) | 2015-07-16 | 2015-07-16 | Rectifier diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520515956.5U CN204792764U (en) | 2015-07-16 | 2015-07-16 | Rectifier diode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204792764U true CN204792764U (en) | 2015-11-18 |
Family
ID=54532759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520515956.5U Expired - Fee Related CN204792764U (en) | 2015-07-16 | 2015-07-16 | Rectifier diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204792764U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107195592A (en) * | 2017-07-06 | 2017-09-22 | 如皋市大昌电子有限公司 | A kind of fast recovery high-voltage tube |
| CN108010975A (en) * | 2017-12-30 | 2018-05-08 | 常州星海电子股份有限公司 | A kind of solar power generation component bypass diode |
| CN108630616A (en) * | 2018-04-19 | 2018-10-09 | 如皋市大昌电子有限公司 | A kind of patch type high voltage silicon rectifier stack and its production technology |
-
2015
- 2015-07-16 CN CN201520515956.5U patent/CN204792764U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107195592A (en) * | 2017-07-06 | 2017-09-22 | 如皋市大昌电子有限公司 | A kind of fast recovery high-voltage tube |
| CN108010975A (en) * | 2017-12-30 | 2018-05-08 | 常州星海电子股份有限公司 | A kind of solar power generation component bypass diode |
| CN108010975B (en) * | 2017-12-30 | 2024-01-26 | 常州星海电子股份有限公司 | Bypass diode for solar power generation assembly |
| CN108630616A (en) * | 2018-04-19 | 2018-10-09 | 如皋市大昌电子有限公司 | A kind of patch type high voltage silicon rectifier stack and its production technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Test method for testing rectifier diode transient high temperature reverse leakage current Effective date of registration: 20161209 Granted publication date: 20151118 Pledgee: Suining City Commercial Bank Limited by Share Ltd Jinlong branch Pledgor: The Sichuan color electronics technology of indigo plant company limited Registration number: 2016510000069 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| 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: 20151118 Termination date: 20170716 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20181212 Granted publication date: 20151118 Pledgee: Jinlong Branch of Suining Bank Co., Ltd. Pledgor: The Sichuan color electronics technology of indigo plant company limited Registration number: 2016510000069 |
|
| PM01 | Change of the registration of the contract for pledge of patent right | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20180522 Registration number: 2016510000069 Pledgee after: Jinlong Branch of Suining Bank Co., Ltd. Pledgee before: Suining City Commercial Bank Limited by Share Ltd Jinlong branch |