CN203883723U - Drive circuit of dolly - Google Patents

Drive circuit of dolly Download PDF

Info

Publication number
CN203883723U
CN203883723U CN201420325487.6U CN201420325487U CN203883723U CN 203883723 U CN203883723 U CN 203883723U CN 201420325487 U CN201420325487 U CN 201420325487U CN 203883723 U CN203883723 U CN 203883723U
Authority
CN
China
Prior art keywords
triode
dolly
base stage
emitter
collector electrode
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.)
Active
Application number
CN201420325487.6U
Other languages
Chinese (zh)
Inventor
张静
何静
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.)
State Grid Sichuan Electric Power Co Chengdu Xindu Power Supply Branch
Original Assignee
State Grid Sichuan Electric Power Co Chengdu Xindu Power Supply Branch
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 State Grid Sichuan Electric Power Co Chengdu Xindu Power Supply Branch filed Critical State Grid Sichuan Electric Power Co Chengdu Xindu Power Supply Branch
Priority to CN201420325487.6U priority Critical patent/CN203883723U/en
Application granted granted Critical
Publication of CN203883723U publication Critical patent/CN203883723U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a drive circuit of a dolly. The drive circuit comprises a bridge arm circuit and a control circuit. The bridge arm circuit comprises a PNP type triode Q1, an NPN type triode Q2, a PNP type triode Q3 and an NPN type triode Q4. The control circuit comprises an NPN type triode Q5 and an NPN type triode Q6. The beneficial effects are that the drive circuit of the dolly utilizes the control circuit to control a dolly in a switchgear and reduces maintenance cost.

Description

A kind of drive circuit of dolly
Technical field
The utility model relates to a kind of drive circuit, particularly relates to a kind of drive circuit of dolly.
Background technology
At present, in electric power system, dolly in switch cubicle is by wind, to control dolly to move forward and backward, wind in use, the excessive words of exerting oneself are easy to damage, and to get rusty, wearing and tearing also easily appear in wind gear used, cause not controlling dolly, with regard to needs, often dolly is keeped in repair like this, wasted a large amount of costs.
Utility model content
The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned prior art, and a kind of drive circuit of dolly is provided, and solves dolly in existing switch cubicle and controls by machinery, often damages the defect that maintenance cost is too high.
The purpose of this utility model is achieved through the following technical solutions: a kind of drive circuit of dolly, comprise bridge arm circuit and control circuit, described bridge arm circuit comprises positive-negative-positive triode Q1, NPN type triode Q2, positive-negative-positive triode Q3 and NPN type triode Q4, described control circuit comprises NPN type triode Q5 and NPN type triode Q6, described triode Q1 and the emitter of triode Q3 are all connected to power supply, the emitter of triode Q2 and triode Q4 is ground connection all, the collector electrode of triode Q1 and triode Q2 is all connected to the positive pole of motor M, the collector electrode of triode Q3 and triode Q4 is all connected on the negative pole of motor M, the base stage of triode Q1 is connected to the collector electrode of triode Q6, the base stage of triode Q2 is connected to the collector electrode of triode Q5, the base stage of triode Q3 is connected to the emitter of triode Q5, the base stage of triode Q4 is connected to the emitter of triode Q6, the base stage of the base stage of triode Q5 and triode Q6 is all connected on power supply by relay K, wherein, the base stage of triode Q5 is connected to the normally-closed contact of relay K, the base stage of triode Q6 is connected to the normally opened contact of relay K, in described motor M, be parallel with a diode D1.In circuit, while opening relay K, at this moment, and normally opened contact is connected, triode Q6 switches on power, and triode Q6 works, normally-closed contact disconnects, and triode Q5 is in non operating state, and triode Q6 draws logical triode Q1 and triode Q4, thereby make triode Q1 and triode Q4 conducting, the motor M access power supply of dolly, and be minus earth, positive pole connects electricity, motor M forward, dolly advances; Closed relay K, at this moment normally-closed contact is communicated with, triode Q5 switches on power, triode Q5 works, and normally opened contact is opened, triode Q6 is in non operating state, and triode Q5 draws logical triode Q2 and triode Q3, thereby make triode Q2 and triode Q3 conducting, the motor M access power supply of dolly, and be plus earth, negative pole connects electricity, motor M reversion, dolly retreats, and this circuit has been realized the circuit of dolly and controlled, and is different from available technology adopting machinery and controls dolly, easily there is the event of damaging, reduced maintenance cost.
Further, on above-mentioned triode Q5, be parallel with a capacitor C 1, the collector electrode of capacitor C 1 one end connecting triode Q5, the emitter of other end connecting triode Q5; On triode Q6, be also parallel with a capacitor C 2, the collector electrode of capacitor C 2 one end connecting triode Q6, the emitter of other end connecting triode Q6,2 couples of triode Q5 of capacitor C 1 and capacitor C and triode Q6 protect, and also have the effect of filtering, rectification simultaneously.
The beneficial effects of the utility model are: when the dolly in switch cubicle adopts machinery to control, often need repairing, this device carries out the control of dolly in switch cubicle by control circuit, reduced maintenance cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but structure of the present utility model is not limited only to following examples:
[embodiment]
As Fig. 1, shown in Fig. 2, a kind of drive circuit of dolly, comprise bridge arm circuit and control circuit, described bridge arm circuit comprises positive-negative-positive triode Q1, NPN type triode Q2, positive-negative-positive triode Q3 and NPN type triode Q4, described control circuit comprises NPN type triode Q5 and NPN type triode Q6, described triode Q1 and the emitter of triode Q3 are all connected to power supply, the emitter of triode Q2 and triode Q4 is ground connection all, the collector electrode of triode Q1 and triode Q2 is all connected to the positive pole of motor M, the collector electrode of triode Q3 and triode Q4 is all connected on the negative pole of motor M, the base stage of triode Q1 is connected to the collector electrode of triode Q6, the base stage of triode Q2 is connected to the collector electrode of triode Q5, the base stage of triode Q3 is connected to the emitter of triode Q5, the base stage of triode Q4 is connected to the emitter of triode Q6, the base stage of the base stage of triode Q5 and triode Q6 is all connected on power supply by relay K, wherein, the base stage of triode Q5 is connected to the normally-closed contact of relay K, the base stage of triode Q6 is connected to the normally opened contact of relay K.In circuit, while opening relay K, at this moment, and normally opened contact is connected, triode Q6 switches on power, and triode Q6 works, normally-closed contact disconnects, and triode Q5 is in non operating state, and triode Q6 draws logical triode Q1 and triode Q4, thereby make triode Q1 and triode Q4 conducting, the motor M access power supply of dolly, and be minus earth, positive pole connects electricity, motor M forward, dolly advances; Closed relay K, at this moment normally-closed contact is communicated with, triode Q5 switches on power, triode Q5 works, and normally opened contact is opened, triode Q6 is in non operating state, and triode Q5 draws logical triode Q2 and triode Q3, thereby make triode Q2 and triode Q3 conducting, the motor M access power supply of dolly, and be plus earth, negative pole connects electricity, motor M reversion, dolly retreats, and this circuit has been realized the circuit of dolly and controlled, and is different from available technology adopting machinery and controls dolly, easily there is the event of damaging, reduced maintenance cost.
Further, on above-mentioned triode Q5, be parallel with a capacitor C 1, the collector electrode of capacitor C 1 one end connecting triode Q5, the emitter of other end connecting triode Q5; On triode Q6, be also parallel with a capacitor C 2, the collector electrode of capacitor C 2 one end connecting triode Q6, the emitter of other end connecting triode Q6,2 couples of triode Q5 of capacitor C 1 and capacitor C and triode Q6 protect, and also have the effect of filtering, rectification simultaneously.

Claims (2)

1. the drive circuit of a dolly, it is characterized in that: comprise bridge arm circuit and control circuit, described bridge arm circuit comprises positive-negative-positive triode Q1, NPN type triode Q2, positive-negative-positive triode Q3 and NPN type triode Q4, described control circuit comprises NPN type triode Q5 and NPN type triode Q6, described triode Q1 and the emitter of triode Q3 are all connected to power supply, the emitter of triode Q2 and triode Q4 is ground connection all, the collector electrode of triode Q1 and triode Q2 is all connected to the positive pole of motor M, the collector electrode of triode Q3 and triode Q4 is all connected on the negative pole of motor M, the base stage of triode Q1 is connected to the collector electrode of triode Q6, the base stage of triode Q2 is connected to the collector electrode of triode Q5, the base stage of triode Q3 is connected to the emitter of triode Q5, the base stage of triode Q4 is connected to the emitter of triode Q6, the base stage of the base stage of triode Q5 and triode Q6 is all connected on power supply by relay K, wherein, the base stage of triode Q5 is connected to the normally-closed contact of relay K, the base stage of triode Q6 is connected to the normally opened contact of relay K.
2. the drive circuit of a kind of dolly according to claim 1, is characterized in that, is parallel with a capacitor C 1 on described triode Q5, the collector electrode of capacitor C 1 one end connecting triode Q5, the emitter of other end connecting triode Q5; On triode Q6, be also parallel with a capacitor C 2, the collector electrode of capacitor C 2 one end connecting triode Q6, the emitter of other end connecting triode Q6.
CN201420325487.6U 2014-06-19 2014-06-19 Drive circuit of dolly Active CN203883723U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420325487.6U CN203883723U (en) 2014-06-19 2014-06-19 Drive circuit of dolly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420325487.6U CN203883723U (en) 2014-06-19 2014-06-19 Drive circuit of dolly

Publications (1)

Publication Number Publication Date
CN203883723U true CN203883723U (en) 2014-10-15

Family

ID=51684186

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420325487.6U Active CN203883723U (en) 2014-06-19 2014-06-19 Drive circuit of dolly

Country Status (1)

Country Link
CN (1) CN203883723U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104143941A (en) * 2014-06-19 2014-11-12 国网四川省电力公司成都市新都供电分公司 Driving circuit of trolley

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104143941A (en) * 2014-06-19 2014-11-12 国网四川省电力公司成都市新都供电分公司 Driving circuit of trolley

Similar Documents

Publication Publication Date Title
CN202363962U (en) DC power supply device capable of switching into stand-by power source
CN204409151U (en) The automatic pumped storage irrigation system of solar energy
CN204173858U (en) Four post lifting machines are manual, electric dual-purpose safety lock
CN204290268U (en) A kind of protective circuit
CN203883723U (en) Drive circuit of dolly
CN104143941A (en) Driving circuit of trolley
CN203118869U (en) Relay control circuit
CN103704195A (en) Intelligent bird repelling device
CN203787942U (en) Motor protective device
CN203911147U (en) Intelligent lightning-protection timing socket
CN204089330U (en) A kind of adaptive power-supply battery supplies power with double circuit device
CN204290312U (en) A kind of signal delay circuit of electric machine controller ON shelves
CN202678924U (en) Automobile short circuit protection circuit
CN205231711U (en) Take motor -drive circuit of temperature protection
CN203180490U (en) Television set self-protection system
CN204129105U (en) A kind of remote appliance monitoring alarm
CN203395326U (en) Locked-rotor detection circuit of gas meter valve
CN203491877U (en) Monitoring circuit for working state of thyristor
CN202587565U (en) Double-relay self-locking trigger control circuit for energy-saving lamp
CN203573123U (en) Dual-relay based power controller
CN202737535U (en) Energy-saving power supply control circuit
CN204652346U (en) A kind of drive unit of permanent-magnet electric switch divide-shut brake signal generator
CN203660948U (en) Servo motor controller
CN201629567U (en) Unloading system in off-grid wind turbine generator unit
CN204136794U (en) Unmanned fog machine power system

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model