CN204271959U - A kind of motor internal contracting brake control circuit - Google Patents
A kind of motor internal contracting brake control circuit Download PDFInfo
- Publication number
- CN204271959U CN204271959U CN201420434668.2U CN201420434668U CN204271959U CN 204271959 U CN204271959 U CN 204271959U CN 201420434668 U CN201420434668 U CN 201420434668U CN 204271959 U CN204271959 U CN 204271959U
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- band
- type brake
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- brake coil
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Abstract
The utility model discloses a kind of motor internal contracting brake control circuit, comprise a diode D1, start-up capacitance C1, current-limiting resistance R1, electronic switching tube Q1, also comprise control signal isolation optocoupler PC1.Motor internal contracting brake coil lead is received on terminal CN2, and adhesive/disconnection control signal is received on terminal CN3.AC power is inputted from terminal CN1 and becomes direct current through diode D1 rectification, direct-flow positive pole connects and starts electrochemical capacitor positive pole, electrochemical capacitor negative pole exports and connects band-type brake coil, and the band-type brake coil other end connects direct current negative terminal through switching tube, and power resistor R1 is attempted by the positive and negative two ends of electrochemical capacitor.Electronic switch Q1 conducting momentary capacitance C1 charges and provides big current to realize band-type brake to band-type brake coil, after band-type brake action realizes, the positive and negative both end voltage of electric capacity C1 rises to maximum rear no current gradually, at this moment the small area analysis that can maintain band-type brake is provided to band-type brake coil by power resistor R1 current limliting, thus reducing the heat of band-type brake coil, small area analysis maintains band-type brake and also reduces energy consumption simultaneously.
Description
Technical field
The utility model relates to a kind of motor internal contracting brake control circuit, belongs to motor control technology field.
Background technology
In practical application, most band-type brake coil power block principle is not quite clear, is not common apparatus, more difficult purchase.Directly to the adhesive of band-type brake coil energization, maintain band-type brake voltage drop and do not get off, coil heat, energy consumption are high.Controlling adhesive/On current with the thyristor regulating angle of flow, is that inductive load leads to pulsating direct current owing to controlling, and controllable silicon does not end probability and strengthens, and controllable silicon security reliability is not so good as resistance and electric capacity is high; Therefore be necessary to develop easy realization, cheap, safe and reliable motor internal contracting brake controller.
Summary of the invention
In order to address the deficiencies of the prior art, technical problem to be solved in the utility model is to provide a kind of electromotor-held brake loop control circuit, comprise a diode D1, start-up capacitance C1, current-limiting resistance R1, electronic switching tube Q1, also comprise control signal isolation optocoupler PC1; Motor internal contracting brake coil lead is received on terminal CN2, and adhesive/disconnection control signal is received on terminal CN3; AC power is inputted from terminal CN1 and becomes direct current through diode D1 rectification, direct-flow positive pole connects and starts electrochemical capacitor positive pole, electrochemical capacitor negative pole exports and connects band-type brake coil, and the band-type brake coil other end connects direct current negative terminal through switching tube, and power resistor R1 is attempted by the positive and negative two ends of electrochemical capacitor.Electronic switch Q1 conducting momentary capacitance C1 charges and provides big current to realize band-type brake to band-type brake coil, after band-type brake action realizes, the positive and negative both end voltage of electric capacity C1 rises to maximum rear no current gradually, at this moment the small area analysis that can maintain band-type brake is provided to band-type brake coil by power resistor R1 current limliting, thus reducing the heat of band-type brake coil, small area analysis maintains band-type brake and also reduces energy consumption simultaneously; Control signal controls electronic switching tube through light-coupled isolation.
The utility model is owing to taking above-described technical scheme, compared with prior art, it comprises following advantage: electric capacity provides band-type brake coil adhesive streaming current, a resistance provides band-type brake coil to maintain electric current, and circuit is simple, device is easily bought, cost is low, safe and reliable; Control signal controls electronic switching tube through light-coupled isolation, both safe and reliable with or without time of delay.
Accompanying drawing explanation
A kind of motor internal contracting brake control of Fig. 1 braking circuit.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Fig. 1 is a kind of electromotor-held brake loop control circuit, comprises a diode D1, start-up capacitance C1, current-limiting resistance R1, electronic switching tube Q1, also comprises control signal isolation optocoupler PC1; Motor internal contracting brake coil lead is received on terminal CN2, and adhesive/disconnection control signal is received on terminal CN3; AC power is inputted from terminal CN1 and becomes direct current through diode D1 rectification, direct-flow positive pole connects and starts electrochemical capacitor positive pole, electrochemical capacitor negative pole exports and connects band-type brake coil, and the band-type brake coil other end connects direct current negative terminal through switching tube, and power resistor R1 is attempted by the positive and negative two ends of electrochemical capacitor; Electronic switch Q1 conducting momentary capacitance C1 charges and provides big current to realize band-type brake to band-type brake coil, after band-type brake action realizes, the positive and negative both end voltage of electric capacity C1 rises to maximum rear no current gradually, at this moment the small area analysis that can maintain band-type brake is provided to band-type brake coil by power resistor R1 current limliting, thus reducing the heat of band-type brake coil, small area analysis maintains band-type brake and also reduces energy consumption simultaneously.Control signal controls electronic switching tube through light-coupled isolation, not only safe and reliable but also without time of delay.
Obviously, those skilled in the art deliberately carries out various change and modification to the utility model and does not depart from spirit and scope of the present utility model; Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (1)
1. a motor internal contracting brake control circuit, comprises a diode D1, start-up capacitance C1, current-limiting resistance R1, electronic switching tube Q1, also comprises control signal isolation optocoupler PC1; Motor internal contracting brake coil lead is received on terminal CN2, and adhesive/disconnection control signal is received on terminal CN3; AC power is inputted from terminal CN1 and becomes direct current through diode D1 rectification, direct-flow positive pole connects and starts electrochemical capacitor positive pole, electrochemical capacitor negative pole exports and connects band-type brake coil, and the band-type brake coil other end connects direct current negative terminal through switching tube, and power resistor R1 is attempted by the positive and negative two ends of electrochemical capacitor; Electronic switch Q1 conducting momentary capacitance C1 charges and provides big current to realize band-type brake to band-type brake coil, after band-type brake action realizes, the positive and negative both end voltage of electric capacity C1 rises to maximum rear no current gradually, at this moment the small area analysis that can maintain band-type brake is provided to band-type brake coil by power resistor R1 current limliting, thus reducing the heat of band-type brake coil, small area analysis maintains band-type brake and also reduces energy consumption simultaneously; Control signal controls electronic switching tube through light-coupled isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420434668.2U CN204271959U (en) | 2014-08-04 | 2014-08-04 | A kind of motor internal contracting brake control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420434668.2U CN204271959U (en) | 2014-08-04 | 2014-08-04 | A kind of motor internal contracting brake control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204271959U true CN204271959U (en) | 2015-04-15 |
Family
ID=52806804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420434668.2U Active CN204271959U (en) | 2014-08-04 | 2014-08-04 | A kind of motor internal contracting brake control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204271959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208762A (en) * | 2016-08-29 | 2016-12-07 | 北京超同步伺服股份有限公司 | Motor braking control circuit |
-
2014
- 2014-08-04 CN CN201420434668.2U patent/CN204271959U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208762A (en) * | 2016-08-29 | 2016-12-07 | 北京超同步伺服股份有限公司 | Motor braking control circuit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |