CN2279033Y - Single-phase motor by applying dc to brake - Google Patents
Single-phase motor by applying dc to brake Download PDFInfo
- Publication number
- CN2279033Y CN2279033Y CN 96223623 CN96223623U CN2279033Y CN 2279033 Y CN2279033 Y CN 2279033Y CN 96223623 CN96223623 CN 96223623 CN 96223623 U CN96223623 U CN 96223623U CN 2279033 Y CN2279033 Y CN 2279033Y
- Authority
- CN
- China
- Prior art keywords
- motor
- control device
- diode
- scr
- circuit
- 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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Abstract
The utility model relates to an energy-consumption brake single-phase motor which utilizes a thyristor to control. A control device is arranged in a junction box of the motor. When the motor stops, the control device works, and provides the direct current for the motor, and the motor is braked. When the rotation speed of the motor is zero, the power supply of the motor is cut off. The control device is composed of a thyristor half-wave rectifying circuit, an RC time-delay triggering circuit and a triggering circuit power supply which is controlled by the switch of the motor. The utility model has the advantages of simple structure, low cost, contactless control, and integration of the motor and the control device.
Description
The utility model is about the dynamic braking motor, refers to a kind of incorporate dynamic braking single-phase motor of SCR control, control device and motor that utilizes especially.
Many plant equipment, household electrical appliance, all requirement can be shut down rapidly and accurately be located, and this will brake motor, force its hard stop, and often the electrical braking modes of using is dynamic braking.Typical prior art is: form control circuit with time relay, braking contactor and bridge rectifier element.This mode control device separates with motor, and the user also will mix control device after purchasing motor.This control device volume is big, cost is high, install to be contactor control, thereby failure rate height, poor reliability, many special occasions are difficult to adapt to requirement.
The purpose of this utility model then is the problem at above-mentioned existence, and a kind of thyristor controlled motor and incorporate dynamic braking single-phase motor of control device of utilizing is provided.
The purpose of this utility model can reach by following measure:
A kind of dynamic braking single-phase motor is characterized in that a control device module 2 is installed in the terminal box 1 of motor, in the control device: controllable silicon SCR
1With rectifier diode D
4, D
5The half-wave rectifying circuit of forming is paid winding with the master of motor respectively and is connected; Controllable silicon SCR
1Trigger electrode G and capacitor C
2, resistance R
2The RC delay trigger circuit of forming connects, B point connecting resistance R in the circuit
3, the C point meets diode D
3Negative pole, R
3, D
3Form capacitor C
2Discharge loop; The power supply of circuits for triggering is by diode D
1, resistance R
1, diode D
2Be composed in series, be attempted by electric power switch K
1Two ends.
Advantage of the present utility model:
The utility model is simple in structure, low price, and contactless control, motor and control device are integrated.
Fig. 1 is the structural representation of dynamic braking single-phase motor of the present utility model.
Fig. 2 is the circuit theory diagrams of dynamic braking single-phase motor of the present utility model.
Below in conjunction with accompanying drawing the utility model is further described:
As shown in Figure 2, the master of motor pay winding respectively with diode D
4, D
5Anodal connection, D
4, D
5Negative pole is with being connected to single-phase silicon-controlled SCR
1Anode A, SCR
1Negative electrode K connects power supply.Controllable silicon SCR like this
1Diode D
4, D
5Form and be subjected to thyristor controlled DC power supply.
In the circuit, resistance R
2, capacitor C
2Form delay trigger circuit, with the control controllable silicon SCR
1Operating state.
In the circuit, resistance R
3, diode D
3Form capacitor C
2Discharge loop.
In the circuit, diode D
1, resistance R
1, diode D
2Form rectification circuit, the circuits for triggering power supply is provided.
The course of work of circuit is as follows: connect motor switch K
1, the MN point is by K switch
1Short circuit, circuits for triggering do not have voltage, do not work controllable silicon SCR
1End, at this moment capacitor C
2Pass through R
3, D
3Discharge.On the other hand, connect motor switch K
1Electrical power, the motor normal rotation.
When shutting down, cut-off switch K
1, cut off the motor AC power, at this moment D
1, R
1, D
2The rectification circuit of forming is by main winding and power connection, capacitor C
2Pass through R
2Press the index law charging, because the capacitor terminal voltage can not be suddenlyd change, the C point is a high potential, and controllable silicon SCR is provided
1Triggering signal, controllable silicon SCR
1Conducting, the motor master pays winding through D
4, D
5, SCR
1With power connection, motor is braked by direct current.
After time-delay, motor speed is zero, capacitor C
2Charging finishes, and circuits for triggering provide the controllable silicon electronegative potential, and controllable silicon ends, and cuts off the motor DC power supply.
Claims (2)
1. a dynamic braking single-phase motor is characterized in that a control device module (2) is installed in the terminal box (1) at motor, in the control device: controllable silicon SCR
1With rectifier diode D
4, D
5The half-wave rectifying circuit of forming is paid winding with the master of motor respectively and is connected; Controllable silicon SCR
1Trigger electrode G and capacitor C
2, resistance R
2The RC delay trigger circuit of forming connects, B point connecting resistance R in the circuit
3, the C point meets diode D
3Negative pole, R
3, D
3Form capacitor C
2Discharge loop; The power supply of circuits for triggering is by diode D
1, resistance R
1, diode D
2Be composed in series, be attempted by electric power switch K
1Two ends.
2. dynamic braking single-phase motor according to claim 1, the master who it is characterized in that motor pay winding respectively with diode D
4, D
5Anodal connection, D
4, D
5Negative pole is with being connected to single-phase silicon-controlled SCR
1Anode A, SCR
1Negative electrode K connects power supply.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 96223623 CN2279033Y (en) | 1996-09-09 | 1996-09-09 | Single-phase motor by applying dc to brake |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 96223623 CN2279033Y (en) | 1996-09-09 | 1996-09-09 | Single-phase motor by applying dc to brake |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2279033Y true CN2279033Y (en) | 1998-04-15 |
Family
ID=33902792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 96223623 Expired - Fee Related CN2279033Y (en) | 1996-09-09 | 1996-09-09 | Single-phase motor by applying dc to brake |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2279033Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101277093B (en) * | 2007-03-26 | 2010-10-13 | 三洋电机株式会社 | Motor drive integrated circuit |
-
1996
- 1996-09-09 CN CN 96223623 patent/CN2279033Y/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101277093B (en) * | 2007-03-26 | 2010-10-13 | 三洋电机株式会社 | Motor drive integrated circuit |
TWI405399B (en) * | 2007-03-26 | 2013-08-11 | Sanyo Electric Co | Motor driving integrated circuit |
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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 |