CN2400214Y - Speed regulating device of electric machine for electric welder - Google Patents

Speed regulating device of electric machine for electric welder Download PDF

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Publication number
CN2400214Y
CN2400214Y CN 99254524 CN99254524U CN2400214Y CN 2400214 Y CN2400214 Y CN 2400214Y CN 99254524 CN99254524 CN 99254524 CN 99254524 U CN99254524 U CN 99254524U CN 2400214 Y CN2400214 Y CN 2400214Y
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CN
China
Prior art keywords
resistance
diode
negative pole
capacitor
terminal
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 99254524
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Chinese (zh)
Inventor
孙旭明
褚华
张楠
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.)
TIANHAN ELECTRIC WELDER INST TIANJIN
Original Assignee
TIANHAN ELECTRIC WELDER INST TIANJIN
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 TIANHAN ELECTRIC WELDER INST TIANJIN filed Critical TIANHAN ELECTRIC WELDER INST TIANJIN
Priority to CN 99254524 priority Critical patent/CN2400214Y/en
Application granted granted Critical
Publication of CN2400214Y publication Critical patent/CN2400214Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a speed regulating device of a motor for an electric welder. The utility model is characterized in that ten terminals are arranged on a casing, and a circuit board, which uses a unipolar transistor to trigger a thyristor electronic element, is arranged in the casing. The utility model has the advantages that the unreliability of publicly known mechanical contacts is cancelled, the trigger action of a relay is replaced by the electronic element for speed regulation so as to realize the braking, thereby, the failure rate of an electric welder is greatly reduced and the circuit of the electric welder is compact. In addition, the utility model also has the characteristics of uniform regulation, reliable braking and long service life.

Description

A kind of motor speed control device that is used for electric welding machine
The utility model belongs to motor speed control device, particularly relates to a kind of motor speed control device that is used for electric welding machine.
The known motor speed control device that is used for electric welding machine all is to realize speed governing to motor by regulating thyristor operating angle, and moves by the contact of relay and to realize braking.Because this body structure is limit, and also has deficiency, first mechanical contact is unreliable; It two is to use the life-span short; It three is that anti-revisionist rate is higher.
The purpose of this utility model is to overcome the deficiency in the known technology and a kind of motor speed control device that is used for electric welding machine of cancelling mechanical contact and improving service life is provided.
The purpose of this utility model is achieved in that
10 terminals are housed on housing of the present utility model, wiring board is housed in housing, the formation of wiring board with being connected of each electronic component is diode V 1Anodal connecting terminal 1, diode V 2Anodal connecting terminal 2, diode V 1With diode V 2Negative pole connecting resistance R respectively 6, relay J coil electrode, diode V 3Negative pole, resistance R 1, resistance R 2, resistance R 3, capacitor C 4And controllable silicon V 9Positive pole, above-mentioned relay J coil negative pole connecting terminal 3, diode V 3Positive pole connecting resistance R respectively 1, capacitor C 1, voltage-stabiliser tube V 13Positive pole, capacitor C 2Negative pole, resistance R 4, resistor R P, resistance R 12, diode V 7Positive pole and triode V 8Emitter stage, above-mentioned in resistance R 2Another termination capacitor C 1The other end, resistance R 3Other end connecting resistance R respectively 4, diode V 4Negative pole, diode V 4Anodal connecting resistance R 5, resistance R 5The other end connect capacitor C respectively 3Negative pole, resistance R 7With triode V 12Base stage, resistance R 7The other end connect capacitor C respectively 3Positive pole and terminal 6, resistance R 9, resistance R 10, voltage-stabiliser tube V 10Negative pole and resistance R 11, connect above-mentioned resistance R 6The other end meet voltage-stabiliser tube V respectively 13Negative level, capacitor C 2Positive level and terminal 4, the other end connecting terminal 5 of resistor R P, resistance R 9Another termination triode V 12Emitter stage, triode V 12Colelctor electrode connecting resistance R 8, resistance R 8The other end connect capacitor C respectively 6With unijunction transistor V 11Emitter stage, capacitor C 6The other end meet pulse transformer B respectively 1Primary coil positive pole, diode V 5Positive pole, rectifier bridge V 14DC side positive pole and voltage-stabiliser tube V 10Positive pole, rectifier bridge V 14DC side negative pole connecting resistance R 11The other end, rectifier bridge V 14Exchange side connecting terminal 7 and terminal 8 respectively, diode V 5Negative pole meet pulse transformer B respectively 1Primary coil negative pole and unijunction transistor V 11First base stage, unijunction transistor V 11The second base stage connecting resistance R 10The other end, capacitor C 4Other end connecting resistance R 15, resistance R 15The other end connect capacitor C respectively 5, resistance R 16, controllable silicon V 9Negative pole, resistance R 14, diode V 7Negative pole and relay J intermediate contact and terminal 9, controllable silicon V 9The control utmost point connect capacitor C respectively 5And resistance R 16The other end and diode V 6Negative pole, diode V 6Positive pole meet pulse transformer B 1The secondary negative pole, pulse transformer B 1The secondary positive pole is succeeded the normally opened contact of electrical equipment J, the normally-closed contact connecting resistance R of relay J 13, meet above-mentioned triode V 8Colelctor electrode connecting resistance R 14The other end, resistance R 12And resistance R 13The other end meet triode V respectively 8Base stage.
The utility model has following accompanying drawing:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the circuit diagram of wiring board among Fig. 1.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
See figures.1.and.2, terminal 1, terminal 2, terminal 3, terminal 4, terminal 5, terminal 6, terminal 7, terminal 8, terminal 9 and terminal 10 are housed on housing 11, again wiring board 12 is placed in the housing.Wiring board in the described housing constitutes, with reference to Fig. 3, and diode V 1Anodal connecting terminal 1, diode V 2Anodal connecting terminal 2, diode V 1With diode V 2Negative pole connecting resistance R respectively 6, relay J coil electrode, diode V 3Negative pole, resistance R 1, resistance R 2, resistance R 3, capacitor C 4And controllable silicon V 9Positive pole, above-mentioned relay J coil negative pole connecting terminal 3, diode V 3Positive pole connecting resistance R respectively 1, capacitor C 1, voltage-stabiliser tube V 13Positive pole, capacitor C 2Negative pole, resistance R 4, resistor R P, resistance R 12, diode V 7Positive pole and triode V 8Emitter stage, above-mentioned in resistance R 2Another termination capacitor C 1The other end, resistance R 3Other end connecting resistance R respectively 4, diode V 4Negative pole, diode V 4Anodal connecting resistance R 5, resistance R 5The other end connect capacitor C respectively 3Negative pole, resistance R 7With triode V 12Base stage, resistance R 7The other end connect capacitor C respectively 3Positive pole and terminal 6, resistance R 9, resistance R 10, voltage-stabiliser tube V 10Negative pole and resistance R 11, connect above-mentioned resistance R 6The other end meet voltage-stabiliser tube V respectively 13Negative level, capacitor C 2Positive level and terminal 4, the other end connecting terminal 5 of resistor R P, resistance R 9Another termination triode V 12Emitter stage, triode V 12Colelctor electrode connecting resistance R 8, resistance R 8The other end connect capacitor C respectively 6With unijunction transistor V 11Emitter stage, capacitor C 6The other end meet pulse transformer B respectively 1Primary coil positive pole, diode V 5Positive pole, rectifier bridge V 14DC side positive pole and voltage-stabiliser tube V 10Positive pole, rectifier bridge V 14DC side negative pole connecting resistance R 11The other end, rectifier bridge V 14Exchange side connecting terminal 7 and terminal 8 respectively, diode V 5Negative pole meet pulse transformer B respectively 1Primary coil negative pole and unijunction transistor V 11First base stage, unijunction transistor V 11The second base stage connecting resistance R 10The other end, capacitor C 4Other end connecting resistance R 15, resistance R 15The other end connect capacitor C respectively 5, resistance R 16, controllable silicon V 9Negative pole, resistance R 14, diode V 7Negative pole and relay J intermediate contact and terminal 9, controllable silicon V 9The control utmost point connect capacitor C respectively 5And resistance R 16The other end and diode V 6Negative pole, diode V 6Positive pole meet pulse transformer B 1The secondary negative pole, pulse transformer B 1The secondary positive pole is succeeded the normally opened contact of electrical equipment J, the normally-closed contact connecting resistance R of relay J 13, meet above-mentioned triode V 8Colelctor electrode connecting resistance R 14The other end, resistance R 12And resistance R 13The other end meet triode V respectively 8Base stage.
Terminal 1 of the present utility model, terminal 2, terminal 3 connect given power supply; Terminal 4, terminal 5, terminal 6 connect the given signal of speed governing; Terminal 7, terminal 8 contact energy sources; Terminal 9 and terminal 10 are picked a motor.When terminal 7 and terminal 8 connection triggering power supplys, through rectifier bridge V 14Rectification, voltage-stabiliser tube V 10Voltage stabilizing is added to capacitor C 6On, pass through capacitor C 6Discharge and recharge come by or conducting unijunction transistor V 11So, at pulse transformer B 1On obtain one and another pulse voltage, again by pulse transformer B 1Isolation be added to controllable silicon V 9Negative pole and control the utmost point be used for triggering controllable silicon V 9Terminal 4 and terminal 5 and terminal 6 are connected given signal just can regulating impulse transformer B 1The frequency of last voltage pulse output, thus realization is to the speed governing of motor.When terminal 1, terminal 2, terminal 3 are connected given power supply, get the action of electric back, then controllable silicon V to the relay J coil 9Conducting, electric motor loop is connected, and disconnects given power supply, relay J action, then triode V 8Conducting, motor is by triode V 8Carry out dynamic braking, motor is reliably stopped.
Advantage and the good effect that the utlity model has are: because the utility model has adopted list Junction transistors triggers the controllable silicon electronic component, realizes that speed governing replaces relay with electronic component and triggers Action realizes braking, has cancelled known mechanical contact unreliability, therefore greatly reduces The fault rate of electric welding machine also makes the electric welding machine circuit more succinct. The utility model also has adjusting in addition Evenly, braking is reliable, the characteristics that greatly improve service life.

Claims (1)

1. a motor speed control device that is used for electric welding machine is formed by wiring board is housed in housing, it is characterized in that: 10 terminals are housed on housing, wiring board is housed in housing, the formation of wiring board with being connected of each electronic component is diode V 1Anodal connecting terminal 1, diode V 2Anodal connecting terminal 2, diode V 1With diode V 2Negative pole connecting resistance R respectively 6, relay J coil electrode, diode V 3Negative pole, resistance R 1, resistance R 2, resistance R 3, capacitor C 4And controllable silicon V 9Positive pole, above-mentioned relay J coil negative pole connecting terminal 3, diode V 3Positive pole connecting resistance R respectively 1, capacitor C 1, voltage-stabiliser tube V 13Positive pole, capacitor C 2Negative pole, resistance R 4, resistor R P, resistance R 12, diode V 7Positive pole and triode V 8Emitter stage, above-mentioned in resistance R 2Another termination capacitor C 1The other end, resistance R 3Other end connecting resistance R respectively 4, diode V 4Negative pole, diode V 4Anodal connecting resistance R 5, resistance R 5The other end connect capacitor C respectively 3Negative pole, resistance R 7With triode V 12Base stage, resistance R 7The other end connect capacitor C respectively 3Positive pole and terminal 6, resistance R 9, resistance R 10, voltage-stabiliser tube V 10Negative pole and resistance R 11, connect above-mentioned resistance R 6The other end meet voltage-stabiliser tube V respectively 13Negative level, capacitor C 2Positive level and terminal 4, the other end connecting terminal 5 of resistor R P, resistance R 9Another termination triode V 12Emitter stage, triode V 12Colelctor electrode connecting resistance R 8, resistance R 8The other end connect capacitor C respectively 6With unijunction transistor V 11Emitter stage, capacitor C 6The other end meet pulse transformer B respectively 1Primary coil positive pole, diode V 5Positive pole, rectifier bridge V 14DC side positive pole and voltage-stabiliser tube V 10Positive pole, rectifier bridge V 14DC side negative pole connecting resistance R 11The other end, rectifier bridge V 14Exchange side connecting terminal 7 and terminal 8 respectively, diode V 5Negative pole meet pulse transformer B respectively 1Primary coil negative pole and unijunction transistor V 11First base stage, unijunction transistor V 11The second base stage connecting resistance R 10The other end, capacitor C 4Other end connecting resistance R 15, resistance R 15The other end connect capacitor C respectively 5, resistance R 16, controllable silicon V 9Negative pole, resistance R 14, diode V 7Negative pole and relay J intermediate contact and terminal 9, controllable silicon V 9The control utmost point connect capacitor C respectively 5And resistance R 16The other end and diode V 6Negative pole, diode V 6Positive pole meet pulse transformer B 1The secondary negative pole, pulse transformer B 1The secondary positive pole is succeeded the normally opened contact of electrical equipment J, the normally-closed contact connecting resistance R of relay J 13, meet above-mentioned triode V 8Colelctor electrode connecting resistance R 14The other end, resistance R 12And resistance R 13The other end meet triode V respectively 8Base stage.
CN 99254524 1999-11-17 1999-11-17 Speed regulating device of electric machine for electric welder Expired - Fee Related CN2400214Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 99254524 CN2400214Y (en) 1999-11-17 1999-11-17 Speed regulating device of electric machine for electric welder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 99254524 CN2400214Y (en) 1999-11-17 1999-11-17 Speed regulating device of electric machine for electric welder

Publications (1)

Publication Number Publication Date
CN2400214Y true CN2400214Y (en) 2000-10-11

Family

ID=34038130

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 99254524 Expired - Fee Related CN2400214Y (en) 1999-11-17 1999-11-17 Speed regulating device of electric machine for electric welder

Country Status (1)

Country Link
CN (1) CN2400214Y (en)

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