CN202586914U - Engine starting motor electronic relay - Google Patents

Engine starting motor electronic relay Download PDF

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Publication number
CN202586914U
CN202586914U CN 201220161772 CN201220161772U CN202586914U CN 202586914 U CN202586914 U CN 202586914U CN 201220161772 CN201220161772 CN 201220161772 CN 201220161772 U CN201220161772 U CN 201220161772U CN 202586914 U CN202586914 U CN 202586914U
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CN
China
Prior art keywords
fet
resistance
power supply
adopt
connects
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
Application number
CN 201220161772
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Chinese (zh)
Inventor
范可牛
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.)
CHONGQING PATELONG ZHITONG ELECTRONIC TECHNOLOGY Co Ltd
Original Assignee
CHONGQING PATELONG ZHITONG ELECTRONIC TECHNOLOGY 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.)
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Publication date
Application filed by CHONGQING PATELONG ZHITONG ELECTRONIC TECHNOLOGY Co Ltd filed Critical CHONGQING PATELONG ZHITONG ELECTRONIC TECHNOLOGY Co Ltd
Priority to CN 201220161772 priority Critical patent/CN202586914U/en
Application granted granted Critical
Publication of CN202586914U publication Critical patent/CN202586914U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

In order to solves the problems of power supply waste, easy arc producing, contact burn-out or bonding and the like of an engine starting motor relay in the prior art, according to the engine starting motor electronic relay provided by the utility model, a field-effect tube is used as a control device of the connection or disconnection of a starting power supply; a field-effect tube grid is used as a control circuit of the connection or disconnection of the starting power supply; the field-effect tube comprises a N channel field-effect tube and a P channel field-effect tube. When the N channel field-effect tube is used as the control device of the connection or disconnection of the starting power supply, a bootstrap circuit is used as the control circuit of the field-effect tube grid. When the P channel field-effect tube is used as the control device of the connection or disconnection of the starting power supply, a bias circuit is used as the control circuit of the field-effect tube grid. The engine starting motor electronic relay provided by the utility model has the advantages that the problems of easy arc producing, contact burn-out or bonding and the like of the engine starting motor relay in the prior art are prevented, and the reliability and stability of the starting of the engine starting motor are improved.

Description

Engine start motor electronic relay
Technical field
The utility model relates to a kind of engine start motor relay, specially refers to a kind of engine start motor electronic relay.
Background technology
At present, motorcycle initiating mostly adopts electricity to start, and realizes that engine ignition starts thereby promptly adopt starter motor to drive engine rotation.Because motorcycle engine is in complete inactive state before startup, therefore, have bigger inertia during startup, need bigger staring torque, promptly starter motor has bigger starting current, usually between 100A to 300A.Because motorcycle starter has bigger starting current when starting; Usually adopt switching on and off of relay control starter motor power supply; Power supply to guarantee starter motor under the situation of big electric current can normally be switched on or switched off, and this relay is commonly called the motorcycle starter relay.Prior art motorcycle starter relay is generally mechanical, promptly adopts the mechanical movement of spring or magnet control contact, to realize being switched on or switched off of contact.Realize being switched on or switched off because the contact of prior art motorcycle starter relay is the mode with mechanical movement, under the effect of big electric current, be easy to produce beat arc, contact burns or fault such as bonding.In addition; Accurate, reliable for the mechanical movement that guarantees contact, the electromagnet that drives the contact motion needs bigger drive current, needs the solenoid of number Ampere currents driving starter motor relay usually; Not only need expend more power supply; And the time of engage relay power supply can not be oversize each time, otherwise will burn solenoid.Obviously, prior art motorcycle starter relay exist waste power supply, start-up time can not be oversize, be easy to generate beat arc, contact burns or problem such as bonding.
Summary of the invention
Can not be oversize for solving waste power supply that prior art engine start motor relay exists, start-up time, be easy to generate beat arc, contact burns or problem such as bonding, the utility model proposes a kind of engine start motor electronic relay.The utility model engine start motor electronic relay adopts FET as the control device that starts power connection or disconnection; Adopt the fet gate control circuit as the control circuit that starts power connection or disconnection; Said FET comprises N ditch FET and P ditch FET; Wherein: adopt N ditch FET when starting the control device of power connection or disconnection, adopt the control circuit of boostrap circuit as fet gate; Adopt P ditch FET when starting the control device of power connection or disconnection, adopt the control circuit of biasing circuit as fet gate.
Further, the utility model engine start motor electronic relay adopts N ditch FET when starting the control device of power connection or disconnection, adopts the control circuit of boostrap circuit as fet gate, comprising: triode T 1Base stage pass through resistance R 1The positive pole that is connected power supply with K switch, emitter connects the negative pole of power supply, and collector electrode passes through resistance R 3With diode D 1The positive pole that connects power supply; Triode T 2Base stage pass through resistance R 2Connect triode T 1Collector electrode, emitter is through diode D 2Connect resistance R 3With diode D 1, collector electrode connects resistance R 4And R 5, and pass through resistance R respectively 4And R 5Connect the grid of FET M and the drive coil L of starter motor; Capacitor C is connected in parallel on triode D 2Emitter and resistance R 5On; The source electrode of FET M connects the positive pole of power supply, and drain electrode connects the drive coil L of starter motor; The other end of starter motor drive coil L connects the negative pole of power supply.
Further, the utility model engine start motor electronic relay adopts P ditch FET when starting the control device of power connection or disconnection, adopts the control circuit of biasing circuit as fet gate, comprising: triode T 3Pass through resistance R 6And K switch 1Connect positive source, emitter connects power cathode, and collector electrode passes through resistance R 7Connect FET M 1Grid and resistance R 8The source electrode of FET M1 connects the positive pole and the resistance R of power supply 8, drain electrode connects the drive coil L of starter motor; The other end of starter motor drive coil L connects the negative pole of power supply.
Further, the FET that is adopted of the utility model engine start motor electronic relay is the parallel connection of one or one above FET.
The useful technique effect of the utility model engine start motor electronic relay be avoided prior art engine start motor relay problem the problem includes: be easy to generate beat arc, contact burns or problem such as bonding; Effectively improve the reliability and stability of engine start electric motor starting, reduced electrical source consumption.
Description of drawings
Accompanying drawing 1 is the circuit diagram that the utility model engine start motor electronic relay adopts N ditch FET embodiment;
Accompanying drawing 2 is circuit diagrams that the utility model engine start motor electronic relay adopts P ditch FET embodiment;
Accompanying drawing 3 is circuit diagrams that the utility model engine start motor electronic relay adopts two N ditch FET embodiment.
Below in conjunction with accompanying drawing and embodiment the utility model engine start motor electronic relay is further described.
Embodiment
Specific embodiment 1
Accompanying drawing 1 is the circuit diagram that the utility model engine start motor electronic relay adopts N ditch FET embodiment; Can know by figure; The utility model engine start motor electronic relay adopts FET as the control device that starts power connection or disconnection; Adopt the fet gate control circuit as the control circuit that starts power connection or disconnection; Said FET comprises N ditch FET and P ditch FET, wherein: adopt N ditch FET when starting the control device of power connection or disconnection, adopt the control circuit of boostrap circuit as fet gate; Adopt P ditch FET when starting the control device of power connection or disconnection, adopt the control circuit of biasing circuit as fet gate.Can know that in conjunction with accompanying drawing 1 the utility model engine start motor electronic relay adopts N ditch FET when starting the control device of power connection or disconnection, adopts the control circuit of boostrap circuit as fet gate, comprising: triode T 1Base stage pass through resistance R 1The positive pole that is connected power supply with K switch, emitter connects the negative pole of power supply, and collector electrode passes through resistance R 3With diode D 1The positive pole that connects power supply; Triode T 2Base stage pass through resistance R 2Connect triode T 1Collector electrode, emitter is through diode D 2Connect resistance R 3With diode D 1, collector electrode connects resistance R 4And R 5, and pass through resistance R respectively 4And R 5Connect the grid of FET M and the drive coil L of starter motor; Capacitor C is connected in parallel on triode D 2Emitter and resistance R 5On; The source electrode of FET M connects the positive pole of power supply, and drain electrode connects the drive coil L of starter motor; The other end of starter motor drive coil L connects the negative pole of power supply.Its basic principle is: before K switch is not closed, and triode T 1, T 2All not conductings, the voltage between the grid of FET M and the drain electrode is zero, and FET M is in nonconducting state, and power supply charges to C, up to supply voltage.After the K switch closure, triode T 1Conducting, triode T 2Conducting, the voltage between the grid of FET M and the drain electrode is supply voltage, and FET M is in conducting state, and power supply is applied on the starter motor through source electrode and the drain electrode of FET M, and starter motor starts; During this period, if off switch K, triode T 1, T 2All not conductings, the voltage between the grid of FET M and the drain electrode is zero again, is in nonconducting state.Therefore, as long as long enough discharge time of capacitor C just can guarantee the normal startup of starter motor.
Accompanying drawing 2 is circuit diagrams that the utility model engine start motor electronic relay adopts P ditch FET embodiment; Can know by figure; The utility model engine start motor electronic relay adopts P ditch FET when starting the control device of power connection or disconnection; Adopt the control circuit of biasing circuit, comprising: triode T as fet gate 3Pass through resistance R 6And K switch 1Connect positive source, emitter connects power cathode, and collector electrode passes through resistance R 7Connect FET M 1Grid and resistance R 8The source electrode of FET M1 connects the positive pole and the resistance R of power supply 8, drain electrode connects the drive coil L of starter motor; The other end of starter motor drive coil L connects the negative pole of power supply.Its basic functional principle is: K switch 1When not closed, triode T 3Not conducting, voltage is supply voltage between the grid of FET and the drain electrode, is in not on-state, K switch 1After the closure, triode T 3Conducting, FET M 1Grid and the drain electrode between voltage will be lower than supply voltage, FET M 1Be in conducting state, power supply is applied on the starter motor through source electrode and the drain electrode of FET M, and starter motor starts.Obviously, FET M 1The time that is in conducting state is decided by K switch 1The closed time, therefore, as long as guarantee K switch 1The closed time, just can guarantee the normal startup of starter motor.
For increasing the electric current of make-and-break of the utility model engine start motor electronic relay; The FET that is adopted of the utility model engine start motor electronic relay is the parallel connection of one or one above FET, when single FET current capacity is enough, adopts a FET; When single FET current capacity is not enough, adopt the parallel connection of an above FET, satisfy the needs of big electric current of make-and-break thus.Accompanying drawing 3 is circuit diagrams that the utility model engine start motor electronic relay adopts two N ditch FET embodiment, can know that by figure the electric current of make-and-break of present embodiment will be the stack of two FETs.
Obviously; The useful technique effect of the utility model engine start motor electronic relay be avoided prior art motorcycle starter relay problem the problem includes: be easy to generate beat arc, contact burns or problem such as bonding; Effectively improve the reliability and stability of engine start electric motor starting, reduced electrical source consumption.

Claims (4)

1. engine start motor electronic relay; It is characterized in that: adopt FET as the control device that starts power connection or disconnection; Adopt the fet gate control circuit as the control circuit that starts power connection or disconnection; Said FET comprises N ditch FET and P ditch FET; Wherein: adopt N ditch FET when starting the control device of power connection or disconnection, adopt the control circuit of boostrap circuit as fet gate; Adopt P ditch FET when starting the control device of power connection or disconnection, adopt the control circuit of biasing circuit as fet gate.
2. according to the said engine start motor electronic of claim 1 relay, it is characterized in that: adopt N ditch FET when starting the control device of power connection or disconnection, adopt the control circuit of boostrap circuit, comprising: triode T as fet gate 1Base stage pass through resistance R 1The positive pole that is connected power supply with K switch, emitter connects the negative pole of power supply, and collector electrode passes through resistance R 3With diode D 1The positive pole that connects power supply; Triode T 2Base stage pass through resistance R 2Connect triode T 1Collector electrode, emitter is through diode D 2Connect resistance R 3With diode D 1, collector electrode connects resistance R 4And R 5, and pass through resistance R respectively 4And R 5Connect the grid of FET M and the drive coil L of starter motor; Capacitor C is connected in parallel on triode D 2Emitter and resistance R 5On; The source electrode of FET M connects the positive pole of power supply, and drain electrode connects the drive coil L of starter motor; The other end of starter motor drive coil L connects the negative pole of power supply.
3. according to the said engine start motor electronic of claim 1 relay, it is characterized in that: adopt P ditch FET when starting the control device of power connection or disconnection, adopt the control circuit of biasing circuit, comprising: triode T as fet gate 3Pass through resistance R 6And K switch 1Connect positive source, emitter connects power cathode, and collector electrode passes through resistance R 7Connect FET M 1Grid and resistance R 8The source electrode of FET M1 connects the positive pole and the resistance R of power supply 8, drain electrode connects the drive coil L of starter motor; The other end of starter motor drive coil L connects the negative pole of power supply.
4. according to the said engine start motor electronic of claim 1 relay, it is characterized in that: the FET of employing is the parallel connection of one or one above FET.
CN 201220161772 2012-04-17 2012-04-17 Engine starting motor electronic relay Expired - Fee Related CN202586914U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220161772 CN202586914U (en) 2012-04-17 2012-04-17 Engine starting motor electronic relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220161772 CN202586914U (en) 2012-04-17 2012-04-17 Engine starting motor electronic relay

Publications (1)

Publication Number Publication Date
CN202586914U true CN202586914U (en) 2012-12-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220161772 Expired - Fee Related CN202586914U (en) 2012-04-17 2012-04-17 Engine starting motor electronic relay

Country Status (1)

Country Link
CN (1) CN202586914U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105251584A (en) * 2014-07-15 2016-01-20 上海震旦办公设备有限公司 Mechanical paper-full detection device for paper shredder
CN112901392A (en) * 2021-02-04 2021-06-04 重庆隆鑫通航发动机制造有限公司 Starting system of engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105251584A (en) * 2014-07-15 2016-01-20 上海震旦办公设备有限公司 Mechanical paper-full detection device for paper shredder
CN112901392A (en) * 2021-02-04 2021-06-04 重庆隆鑫通航发动机制造有限公司 Starting system of engine

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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: 20121205

Termination date: 20150417

EXPY Termination of patent right or utility model