CN2344906Y - Car generator protector - Google Patents
Car generator protector Download PDFInfo
- Publication number
- CN2344906Y CN2344906Y CN 98238094 CN98238094U CN2344906Y CN 2344906 Y CN2344906 Y CN 2344906Y CN 98238094 CN98238094 CN 98238094 CN 98238094 U CN98238094 U CN 98238094U CN 2344906 Y CN2344906 Y CN 2344906Y
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- CN
- China
- Prior art keywords
- circuit
- signal
- triode
- voltage
- resistance
- 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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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a car generator protector, which comprises a current protection sampling circuit, a signal amplifying circuit, a preamplifier circuit, an executive circuit, a voltage protection sampling circuit, an operational state sampling circuit and an information feedback circuit. The utility model has the advantages of simple structure and convenient installation. The utility model effectively prevents short circuit of a car generator and overload of the generator, and regulates voltage of the generator.
Description
The utility model relates to a kind of automobile generating protector.
At present, the generator that various automobiles use is one of main power supply in the car, and whether automobile can operate as normal, see whether generator operation is normal, so the protective device of generator is crucial.The automobile current generator voltage regulator of the band short-circuit protection of Patent Office of the People's Republic of China's bulletin on April 8th, 1992, it is a kind of automobile current generator voltage regulator, comprises current detection section, power drive and output.Also increase a volume pulse short-circuit protection part in addition.When load generation overcurrent, the power output tube of adjuster ends and load is constantly produced the detection pulse, after load restoration is normal, adjuster recovers operate as normal thereupon automatically, thereby avoided because of load overcurrent or short circuit burn out components and parts in the adjuster, its useful life has been grown in the court of a feudal ruler greatly.Yet the single short-circuit protection of the generator that above-mentioned automobile is used can not be accomplished promptly will prevent short circuit, protects the generator overload again, can accomplish to reconcile simultaneously generator voltage again.
The purpose of this utility model provides a kind of simple in structure, effectively prevents short circuit and generator overload, simultaneously automobile generating protector that again can regulator generator voltage.
In order to achieve the above object, the utility model is by current protection sample circuit, signal amplification circuit, pre-amplification circuit, executive circuit, voltage protection sample circuit, operating state sample circuit and feedback information circuit.
The utility model has the advantages that:
(1) simple in structure, easy for installation;
(2) this device can effectively prevent the automobile current generator short circuit, can protect the generator overload again, can make the automobile current generator operate as normal by regulator generator voltage again simultaneously;
(3) volume is little, reliable operation, and useful life is longer.
Description of drawings:
Fig. 1 is the utility model block diagram;
Fig. 2 is the utility model electrical schematic diagram.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
By Fig. 1-Fig. 2 as can be known, the utility model is to comprise current protection sample circuit, signal amplification circuit, pre-amplification circuit, executive circuit, voltage protection sample circuit, operating state sample circuit and feedback information circuit.
The resistance R of described current signal in the current protection sample circuit
1Sampling is after signal compares the resistance R in the amplifying circuit
10, R
20The branch pressure voltage of forming, voltage signal send puts triode G
9Base stage.
Described signal compares the triode G in the sampling amplification circuit
9Emitter and base stage between and connect capacitor C
4
Described triode G
6Base stage and emitter between be connected in series diode D
5With voltage-stabiliser tube D
6, go back and connect capacitor C simultaneously
3
Triode G in the described pre-amplification circuit
4Base stage and triode G
5Collector electrode be connected, simultaneously also with the signal resistance R in the amplifying circuit relatively
16, R
17, R
10Be connected.
Described signal compares the resistance R in the amplifying circuit
17Serial connection R
16Back and capacitor C
5And connect.
The utility model is made up of two bar printing wiring boards and movement, they is installed in the housing that nylon is hot pressed into, and the long 84mm of housing, wide 38mm, the rectangle two ends of dark 23mm respectively have on the palm plate of the long band of 26mm installing hole.Housing bottom select for use by the thick high-quality iron plate of 1.5mm, zinc-plated promptly be the housing base plate, the power amplifier tube fin of holding concurrently again.On two wiring boards be respectively one by signal relatively amplify, preposition amplification forms, another piece is made up of the current sampling amplification ratio.Be installed on external tapping and select automobile specified plug flexibly for use, external connection is selected 0.5 square of red, yellow, white, green, black line for use.Select for use high power valve to make the not level of executive circuit part, GC3157 plays on-off action.The voltage protection sample circuit, this part is by resistance R
14Finishing signal comparator circuit is according to triode embedding principle, and the voltage signal of sampling is judged that through contrast its result is delivered to pre-amplification circuit, through preposition amplification, finishes the voltage-regulation process by executive circuit again.
The utility model is that current sampling signal comparison amplifying circuit and pre-amplification circuit are combined, and has compressed usage space, reduces circuit consumption, improves former device service efficiency.Two pre-amplification circuits merge together.
Described implementation status feedback circuit, this part is by resistance R
4Finish with steady-working state.
Described operating state sample circuit is by resistance R
9, capacitor C
21, diode D
4Form.
The voltage signal comparison circuit is mainly by resistance R
9Finish, U is depended in output
R7＞U
R9Or U
R7≤ U
R9Two states.
Described pre-amplification circuit is by triode G
2Extract U
R7＞U
R9In time, close, U
R7≤ U
R9The time G
2Conducting, i.e. output signal.
Claims (6)
1, a kind of automobile generating protector is made up of signal comparison amplifying circuit, pre-amplification circuit, it is characterized in that; Also comprise current protection sample circuit, signal amplification circuit, pre-amplification circuit, executive circuit, voltage protection sample circuit, operating state sample circuit and feedback information circuit.
2, according to the described automobile generating protector of claim 1, it is characterized in that: the resistance R of current signal in the current protection sample circuit
1Sampling is after signal compares the resistance R in the amplifying circuit
10, R
20The branch pressure voltage of forming, voltage signal send puts triode G
9Base stage.
3, according to the described automobile generating protector of claim 1, it is characterized in that: signal compares the triode G in the sampling amplification circuit
9Emitter and base stage between and connect capacitor C
4
4, according to the described automobile generating protector of claim 1, it is characterized in that; Triode G
6Base stage and emitter between be connected in series diode D
5With voltage-stabiliser tube D
6, go back and connect capacitor C simultaneously
3
5, according to the described automobile generating protector of claim 1, it is characterized in that: the triode G in the pre-amplification circuit
4Base stage and triode G
5Collector electrode be connected, simultaneously also with the signal resistance R in the amplifying circuit relatively
16, R
17, R
10Be connected.
6, according to the described automobile generating protector of claim 1, it is characterized in that: signal compares the resistance R in the amplifying circuit
17Serial connection R
16Back and capacitor C
5And connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238094 CN2344906Y (en) | 1998-06-25 | 1998-06-25 | Car generator protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238094 CN2344906Y (en) | 1998-06-25 | 1998-06-25 | Car generator protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2344906Y true CN2344906Y (en) | 1999-10-20 |
Family
ID=33985757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98238094 Expired - Fee Related CN2344906Y (en) | 1998-06-25 | 1998-06-25 | Car generator protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2344906Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247038B (en) * | 2006-10-06 | 2012-05-30 | 雷米国际有限公司 | Method and system for protecting voltage regulator driver circuitry during field coil short circuit condition |
| CN105929780A (en) * | 2016-06-28 | 2016-09-07 | 无锡新大力电机有限公司 | Motor control system |
| CN105929779A (en) * | 2016-06-28 | 2016-09-07 | 无锡新大力电机有限公司 | Control system based on motor of new energy automobile |
-
1998
- 1998-06-25 CN CN 98238094 patent/CN2344906Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247038B (en) * | 2006-10-06 | 2012-05-30 | 雷米国际有限公司 | Method and system for protecting voltage regulator driver circuitry during field coil short circuit condition |
| CN105929780A (en) * | 2016-06-28 | 2016-09-07 | 无锡新大力电机有限公司 | Motor control system |
| CN105929779A (en) * | 2016-06-28 | 2016-09-07 | 无锡新大力电机有限公司 | Control system based on motor of new energy automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |