CN102111078A - Rectifier bridge of automobile AC (alternating current) generator - Google Patents

Rectifier bridge of automobile AC (alternating current) generator Download PDF

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Publication number
CN102111078A
CN102111078A CN2011100487432A CN201110048743A CN102111078A CN 102111078 A CN102111078 A CN 102111078A CN 2011100487432 A CN2011100487432 A CN 2011100487432A CN 201110048743 A CN201110048743 A CN 201110048743A CN 102111078 A CN102111078 A CN 102111078A
Authority
CN
China
Prior art keywords
mosfet
rectifier bridge
generator
framework
mosfet module
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.)
Pending
Application number
CN2011100487432A
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Chinese (zh)
Inventor
程英伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JINZHOU HIVRON AUTO ELECTRONICS Co Ltd
Original Assignee
JINZHOU HIVRON AUTO ELECTRONICS Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JINZHOU HIVRON AUTO ELECTRONICS Co Ltd filed Critical JINZHOU HIVRON AUTO ELECTRONICS Co Ltd
Priority to CN2011100487432A priority Critical patent/CN102111078A/en
Publication of CN102111078A publication Critical patent/CN102111078A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/0002Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

The invention discloses a rectifier bridge of an automobile AC (alternating current) generator. An MOSFET (metal oxide semiconductor field effect transistor) driving plate and a protective cover are arranged in a mounting groove at one side of a frame; an MOSFET module circuit board and radiating fins are arranged in a mounting groove at the other side of the frame; and the MOSFET module circuit board and the MOSFET driving plate are welded and connected through leads. The rectifier bridge has the advantages that the high-end MOSFET is utilized to replace a diode for converting an AC power supply into a DC (direct current) power supply, the power loss caused by the voltage drop of the diode is reduced, the size of an MOSFET is far less than that of the rectifier diode, the space of the generator is greatly saved, and the output efficiency of the generator is improved by 30% after replacement, therefore, the rectifier bridge has the functions of saving energy and reducing consumption. Meanwhile, the rectifier bridge is arranged in the generator. Compared with the external rectifier bridge, the rectifier bridge disclosed by the invention occupies small inner space of the automobile, and can directly replace the original rectifier bridge without changing the structure of the generator.

Description

The AC generator for vehicle rectifier bridge
Technical field
The present invention is a kind of AC generator for vehicle rectifier bridge, belongs to Vehicle Electronic Control and Tool and Die Technology.
Background technology
At present, nearly all automobile all is to adopt passive diode that the three-phase alternating-current supply that the generator unit stator winding produces is converted to DC power supply, but there are the bigger characteristics of pressure drop in diode, and institute is so that power loss is more, and the volume of diode is bigger.Along with the increase gradually of automotive interior electrical installation, the demand of power supply is also in continuous increase, and the requirement of replacing technology for energy-saving and cost-reducing and chemical fuel is very urgent.
Also have the metal oxide layer semiconductor field-effect transistor to be called for short MOSFET at present abroad and substitute the diode rectification technology, but its volume is bigger, can't be installed on generator inside, is loaded on the generator outside, is connected with generator by lead, it is bigger to take motor space.
Summary of the invention
The object of the invention is to solve above-mentioned existing existing problem, and volume is little, places a kind of AC generator for vehicle rectifier bridge of generator inside.
Technical scheme of the present invention is: MOSFET drive plate and protective cover are installed in the side mounting groove of framework, MOSFET module board, fin are installed in the opposite side mounting groove of framework; The MOSFET module board links to each other by wire bonds with the MOSFET drive plate.
The object of the invention advantage is, use high-end MOSFET to substitute diode AC power is converted to DC power supply, reduced the power loss that diode drop brings greatly, the MOSFET volume is far smaller than rectifier diode, saved the space of generator greatly, the delivery efficiency of replacing the back generator improves 30%, thereby plays the effect of energy-conservation province consumption.
Simultaneously, the present invention is installed on generator inside, compares with the circumscribed rectifier bridge, and it is little to take the automotive interior space, and under the situation that does not change the generator any structure, can directly replace original rectifier bridge.
Description of drawings:
Fig. 1 is a front view of the present invention;
Fig. 2 is a left view of the present invention;
Fig. 3 is the B-B cutaway view of Fig. 2;
Fig. 4 is the MOSFET module board;
Fig. 5 is mounted in the partial sectional view on the generator.
Embodiment
Describe in detail below in conjunction with accompanying drawing, as shown in the figure, metallic conduction sheet 10 is imbedded in the framework 3, the three-phase alternating current that generator unit stator sends is connected with phase place link 7 of the present invention, phase place link 7 links to each other with the MOSFET module 13 of rectifier bridge by metallic conduction sheet 10, reach alternating current is converted to direct current finally by B+ terminal bolt 6 service voltage adjusters, control generator by adjuster and when generate electricity, when do not generate electricity.Are earth terminals 9 with B+ terminal bolt 6 relative those ends on the framework 3, it directly links to each other with the generator metal shell.
Fin 1 and MOSFET module board 2 are installed in the one side mounting groove of framework 3, six MOSFET modules 13 are arranged on the MOSFET module board 2, corresponding 2 of every cross streams electricity, respectively with each mutually metallic conduction sheet 10 be weldingly connected, in order to prevent that MOSFET from burning out because of overheated, the MOSFET module back side scribbles one deck heat conductive silica gel 11, bonding with fin 1, be coated with one deck sealing silica gel 12 at last at framework 3 edges that MOSFET module board 2 one sides are installed, fin 1 correspondence that is stained with MOSFET module board 2 is bonded on the framework 3, be cured to together through behind the high temperature.
MOSFET drive plate 4 and protective cover 5 are installed in the opposite side mounting groove of framework 3, MOSFET drive plate 4 adopts printed circuit board (PCB) (PCB), many electronic devices and components are installed above, MOSFET drive plate 4 and MOSFET module board 28 are weldingly connected by going between, in order to 2 work of driven MOS FET module board.In order to prevent that external environment condition (dust, water, other foreign matters etc.) from entering internal contamination MOSFET drive plate 4, install drive plate after, framework 3 edges be coated with the sealing silica gel 12, protective cover 5 is bonded on the framework 3, make framework 3 inside go into sealing state.
Fin 1 material is an aluminium alloy, and several teeth are arranged, and its purposes is a protection MOSFET module, prevents that MOSFET is overheated and burns out.
MOSFET module board 2 is a ceramic material, above print copper to connecting between the components and parts, every 2 MOSFET13 when in parallel (use 4) that use mutually amount to 6 when in parallel (use 12) realization three phase rectifiers.MOSFET module 2 is used for the three-phase alternating-current supply that the generator unit stator winding produces is converted to DC power supply, and MOSFET module 2 back sides scribble one deck silica gel 11 and are bonded on the fin 1, in order to prevent MOSFET because overheated and burn out.
During assembling generator 14, the present invention is installed to generator inside, generator ' s cover 15 is fixed.

Claims (4)

1. AC generator for vehicle rectifier bridge, it is characterized in that, metal oxide layer semiconductor field-effect transistor (being called for short MOSFET) drive plate and protective cover are installed in the one side mounting groove of framework, MOSFET module board, fin are installed in the opposite side mounting groove of framework; The MOSFET module board links to each other by wire bonds with the MOSFET drive plate.
2. according to the said a kind of AC generator for vehicle rectifier bridge of claim 1, it is characterized in that, the metallic conduction sheet is imbedded in the framework, and the phase place link links to each other with the MOSFET module of rectifier bridge by the metallic conduction sheet, and relative with the B+ terminal bolt on the framework is earth terminal.
3. according to the said a kind of AC generator for vehicle rectifier bridge of claim 1, it is characterized in that, six MOSFET modules are arranged on the MOSFET module board, corresponding of every cross streams electricity, respectively with each mutually the metallic conduction sheet be weldingly connected, the MOSFET module back side scribble one deck heat conductive silica gel and fin bonding, be coated with one deck sealing silica gel in the frame edge that MOSFET module board one side is installed, the fin correspondence that is stained with the MOSFET module board is bonded on the framework, be cured to together through behind the high temperature.
4. according to the said a kind of AC generator for vehicle rectifier bridge of claim 1, it is characterized in that, the MOSFET module board is a ceramic material, connect between top print copper and the components and parts, whenever, use 2 MOSFET modules mutually, use 4 when in parallel, amount to 6, use 12 to realize three phase rectifier when in parallel.
CN2011100487432A 2011-03-01 2011-03-01 Rectifier bridge of automobile AC (alternating current) generator Pending CN102111078A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100487432A CN102111078A (en) 2011-03-01 2011-03-01 Rectifier bridge of automobile AC (alternating current) generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011100487432A CN102111078A (en) 2011-03-01 2011-03-01 Rectifier bridge of automobile AC (alternating current) generator

Publications (1)

Publication Number Publication Date
CN102111078A true CN102111078A (en) 2011-06-29

Family

ID=44175134

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011100487432A Pending CN102111078A (en) 2011-03-01 2011-03-01 Rectifier bridge of automobile AC (alternating current) generator

Country Status (1)

Country Link
CN (1) CN102111078A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102510174A (en) * 2011-11-04 2012-06-20 锦州海伯伦汽车电子有限公司 Integrated adjustor, namely rectifier bridge of automobile alternating-current generator
CN107370347A (en) * 2017-07-21 2017-11-21 西安交通大学 More SiC MOSFET chips parallel power module drive control circuits and its printed circuit board

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1146656A (en) * 1995-06-02 1997-04-02 日本电装株式会社 Motor vehicle alternator with sealed rectifier for efficient operation at high temperatures
US20030141854A1 (en) * 2002-01-29 2003-07-31 Mitsubishi Denki Kabushiki Kaisha Automotive electric power supply apparatus
CN101006633A (en) * 2005-01-28 2007-07-25 三菱电机株式会社 Rotating electric machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1146656A (en) * 1995-06-02 1997-04-02 日本电装株式会社 Motor vehicle alternator with sealed rectifier for efficient operation at high temperatures
US20030141854A1 (en) * 2002-01-29 2003-07-31 Mitsubishi Denki Kabushiki Kaisha Automotive electric power supply apparatus
CN101006633A (en) * 2005-01-28 2007-07-25 三菱电机株式会社 Rotating electric machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102510174A (en) * 2011-11-04 2012-06-20 锦州海伯伦汽车电子有限公司 Integrated adjustor, namely rectifier bridge of automobile alternating-current generator
CN102510174B (en) * 2011-11-04 2015-02-11 锦州万得汽车电器电子科技有限公司 Integrated adjustor, namely rectifier bridge of automobile alternating-current generator
CN107370347A (en) * 2017-07-21 2017-11-21 西安交通大学 More SiC MOSFET chips parallel power module drive control circuits and its printed circuit board
CN107370347B (en) * 2017-07-21 2019-12-24 西安交通大学 Multi-SiC MOSFET chip parallel power module driving control circuit and printed circuit board thereof

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Application publication date: 20110629