CN205791467U - YE motor overload protection circuit - Google Patents
YE motor overload protection circuit Download PDFInfo
- Publication number
- CN205791467U CN205791467U CN201620518289.0U CN201620518289U CN205791467U CN 205791467 U CN205791467 U CN 205791467U CN 201620518289 U CN201620518289 U CN 201620518289U CN 205791467 U CN205791467 U CN 205791467U
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- CN
- China
- Prior art keywords
- normally opened
- relay
- branch road
- reversion
- importation
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- 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.)
- Withdrawn - After Issue
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Abstract
A kind of YE motor overload protection circuit, including: control circuit, rotating forward branch road, reversion branch road, common branch；Control circuit includes: the first normally opened relay, the second normally opened relay, temperature switch, conversion type relay importation；First normally opened relay importation controls end with rotating forward respectively and public control end is connected, second normally opened relay importation controls end with reversion respectively and public control end is connected, control between end and reversion control end, to be serially connected with the first normally opened relay output part and the second normally opened relay output part rotating forward, temperature switch concatenates with conversion type relay importation, temperature switch another terminate public control end, the conversion type relay importation other end is connected on the first normally opened relay output part and between the second normally opened relay output unit divides.This utility model uses temperature switch detection, has that installation is simple, debug advantage simple, with low cost, that reliability is high.
Description
Technical field:
This utility model relates to YE motor overload resist technology field, particularly to a kind of electronic execution
Device motor overload protection circuit.
Background technology:
Increasing factory have employed Automated condtrol, and manual operation is substituted by machinery or automation equipment,
Actuator serves the interface interaction between control system and valve mechanical movement；Field in some danger
Closing, the actuator devices of automatization can reduce the injury of personnel；Some Special valve requires in special circumstances
Lower emergency opening or closedown, valve actuator can stop dangerous diffusion further factory's loss to be reduced to simultaneously
Minimum.
Executor is divided into pneumatic, electronic and hydraulic actuator by drive energy used.Wherein, electronic execution machine
The major advantage of structure is exactly the stable of height and the applicable constant thrust of user, and maximum executor produces
Thrust may be up to 225000kgf, can reach the only hydraulic executer of so high thrust, but hydraulic executer is made
Valency is more much higher than electronic.The yaw stiffness of YE is good, the thrust of output or moment base
It is constant in basis, the out-of-balance force of medium can well be overcome, reach the accurate control to technological parameter,
So control accuracy is higher than pneumatic actuator.
The overload protection of Switching Electric Actuator at present, one is to detect by machinery, then by going
Cheng Kaiguan carrys out deenergization, thus prevents motor long term overloading, yet with machinery complexity and
The high cost thus brought, can not be used, such as notification number in some require the YE of low cost
For the patent of CN203906956U, it couples sampling by moment, screening circuit realizes overload and protects
Protect；The another kind of electric current detecting motor by sensor, is calculated by circuit and judges whether overload, this
It is complicated that circuit there is also circuit debugging, the shortcoming that cost is high, if notification number is the patent of CN2570835Y,
It includes microprocessor CPU, position sensor.
Summary of the invention:
In consideration of it, be necessary to design the YE motor overload protection electricity of a kind of low cost, high-reliability
Road.
A kind of YE motor overload protection circuit, including: perform circuit and control circuit；Wherein,
Performing circuit to be used for providing electric energy for motor, control circuit is for according to whether overload controls to perform circuit
Break-make, perform circuit include: rotate forward branch road, reversion branch road, common branch；Rotate forward branch road and public
Road, or the execution circuit that reversion branch road and common branch composition close；
Rotate forward branch road to include rotating forward control end and connected motor rotating forward terminals；
Reversion branch road includes that reversion controls end and connected motor non-inverting terminal；Motor is just transferred
Commutation capacitor it is connected between line end and non-inverting terminal；
Common branch includes public control end, the normally-closed contact of conversion type relay and the motor being sequentially connected with
Common terminal；
Control circuit includes: the first normally opened relay, the second normally opened relay, temperature switch, conversion type continue
Electrical equipment importation；Wherein, the first normally opened relay importation controls end and public control with rotating forward respectively
End connects, and the second normally opened relay importation controls end with reversion respectively and public control end is connected, just
Turn and control between end and reversion control end, to be serially connected with the first normally opened relay output part and the second normally opened relay
Output part, temperature switch concatenates with conversion type relay importation, another public control of termination of temperature switch
End processed, it is normally opened with second that the conversion type relay importation other end is connected on the first normally opened relay output part
Between relay output unit is divided.
Preferably, control circuit also includes that warning branch road, warning branch road include malfunction indicator lamp, indicating fault
Lamp is in parallel with conversion type relay importation.
Preferably, control circuit also includes self-locking branch road；Entered performing circuitry cuts state by self-locking branch road
Row keeps, it may be assumed that makes temperature switch perform circuit after resetting and is still kept switched off；Self-locking branch road includes conversion type
Relay normally open contact and coupled fault reset switch, the fault reset switch other end is connected on temperature and opens
Close between conversion type relay importation.
This utility model uses temperature switch detection, and circuit carrys out action protection motor according to temperature switch state,
Avoid machinery detection and high cost that circuit counting judges, have that installation is simple, debugging is simple, become
The advantage that this is cheap, reliability is high.
Accompanying drawing illustrates:
Accompanying drawing 1 is the circuit structure diagram of the YE motor overload protection circuit of a width better embodiment.
In figure: rotate forward control end A, reversion controls end B, public control end H, the first normally opened relay K1, the
Two normally opened relay K2, temperature switch ST, conversion type relay K 3, motor M, rotate forward terminals CW,
Non-inverting terminal CCW, common terminal COM, malfunction indicator lamp HL, fault reset switch SR, change
Phase electric capacity C, normally-closed contact G, normally opened contact F.
Detailed description of the invention:
As it is shown in figure 1, a kind of YE motor overload protection circuit, including: perform circuit and control
Circuit；Wherein, performing circuit and be used for providing electric energy for motor, control circuit is for according to whether overload is come
Control to perform the break-make of circuit, perform circuit and include: rotate forward branch road, reversion branch road, common branch；Rotate forward
Branch road and common branch, or the execution circuit that reversion branch road and common branch composition close；
Rotate forward branch road and include that rotating forward control end A and connected motor M rotates forward terminals CW；
Reversion branch road includes that reversion controls end B and connected motor M non-inverting terminal CCW；Electricity
Motivation M rotates forward and is connected to commutation capacitor C between terminals CW and non-inverting terminal CCW；
Common branch includes public control end H, the normally-closed contact G of conversion type relay K 3 being sequentially connected with
With motor M common terminal COM；
Control circuit includes: the first normally opened relay K1, the second normally opened relay K2, temperature switch ST,
Conversion type relay K 3 importation；Wherein, the first normally opened relay K1 importation is controlled with rotating forward respectively
End A processed and public control end H connects, and the second normally opened relay K2 importation controls end with reversion respectively
B and public control end H connects, and controls to be serially connected with first between end A and reversion control end B in rotating forward normally opened
Relay K 1 output part and the second normally opened relay K2 export part, and temperature switch ST continues with conversion type
Electrical equipment K3 importation concatenates, the temperature switch ST public control end H of another termination, conversion type relay K 3
The importation other end is connected on the first normally opened relay K1 output part and the second normally opened relay K2 output unit
/ (i.e. D shown in Fig. 1 point).
In the present embodiment, control circuit also includes that warning branch road, warning branch road include malfunction indicator lamp HL,
Malfunction indicator lamp HL is in parallel with conversion type relay K 3 importation.
In the present embodiment, control circuit also includes self-locking branch road；Cut performing circuit by self-locking branch road
Disconnected state keeps, it may be assumed that makes temperature switch ST perform circuit after resetting and is still kept switched off；Self-locking branch road
Including conversion type relay K 3 normally opened contact F and coupled fault reset switch SR, failure reset is opened
Close the SR other end and be connected between temperature switch ST and conversion type relay K 3 importation (i.e. institute in Fig. 1
Show E point).
When YE does not transships and rotates forward, give and rotate forward control end A and public control end H 220V AC,
Relay K 1 obtains electric, the closing of contact of relay K 1 so that the voltage between D point and public control end H is
220V AC；When YE does not transships and inverts, control end B and public control end H 220V to reversion
AC, relay K 2 obtains electric, the closing of contact of relay K 2 so that between D point and public control end H
Voltage is 220V AC；Under above two state, owing to temperature switch is open state, public control end H and
E is separated, relay K 3 must not electricity, relay K 3 normally-closed contact G conducting, public control end H and
The common terminal COM connection of motor M.Therefore control end A and public control end H 220V when giving to rotate forward
During AC, the rotating forward terminals CW of the common terminal COM and motor M of motor M obtains electric, electricity
Motivation M rotates forward；When controlling end B and public control end H 220V AC to reversion, the public affairs of motor M
The non-inverting terminal CCW of terminals COM and motor M obtains electric altogether, motor reversal.
If there is overload when forward or reverse, temperature switch ST closes so that public control end H and E
Point connection, relay K 3 and malfunction indicator lamp HL obtain electric, and relay K 3 normally-closed contact disconnects, motor
M power-off, relay K 3 normally opened contact closes, and malfunction indicator lamp HL is bright.Motor M power-off is through one
After the section time, temperature switch ST resets because temperature reduces, but owing to relay K 3 normally opened contact Guan Bi is formed
Latching circuit, the most public control end H, relay K 3 normally opened contact F, fault reset switch SR and E
Point connection relay K 3 obtains electric, and relay K 3 normally opened contact remains closed, motor still power-off.
The releasing of overload protection action: after circuit protection action, through temperature switch ST after a while because of temperature
Reducing and reset, if disconnected by control end power supply, relay K 3 power-off, simultaneous faults display lamp HL extinguishes,
The most again recovering to control end electric power, motor M works by control signal；Alternatively, it is also possible to it is multiple by fault
Bit switch SR, make the most public control end H, relay K 3 normally opened contact F, through fault reset switch SR and
The branch road that E point is formed disconnects, relay K 3 power-off, the normally-closed contact G conducting of relay K 3, event simultaneously
Barrier display lamp HL extinguishes, and motor M works by control signal.
Claims (3)
1. a YE motor overload protection circuit, it is characterised in that: including: perform circuit and control circuit；
Wherein, perform circuit to include: rotate forward branch road, reversion branch road, common branch；Rotate forward branch road and common branch,
Or reversion branch road and common branch constitute the execution circuit of Guan Bi；
Rotate forward branch road to include rotating forward control end and connected motor rotating forward terminals；
Reversion branch road includes that reversion controls end and connected motor non-inverting terminal；Motor is just transferred
Commutation capacitor it is connected between line end and non-inverting terminal；
Common branch includes public control end, the normally-closed contact of conversion type relay and the motor being sequentially connected with
Common terminal；
Control circuit includes: the first normally opened relay, the second normally opened relay, temperature switch, conversion type continue
Electrical equipment importation；Wherein, the first normally opened relay importation controls end and public control with rotating forward respectively
End connects, and the second normally opened relay importation controls end with reversion respectively and public control end is connected, just
Turn and control between end and reversion control end, to be serially connected with the first normally opened relay output part and the second normally opened relay
Output part, temperature switch concatenates with conversion type relay importation, another public control of termination of temperature switch
End processed, it is normally opened with second that the conversion type relay importation other end is connected on the first normally opened relay output part
Between relay output unit is divided.
2. YE motor overload protection circuit as claimed in claim 1, it is characterised in that: control circuit is also
Including warning branch road, warning branch road includes malfunction indicator lamp, malfunction indicator lamp and conversion type relay input unit
Divide parallel connection.
3. the YE motor overload protection circuit as described in claim 1 or claim 2, it is characterised in that:
Control circuit also includes self-locking branch road；Self-locking branch road includes conversion type relay normally open contact and coupled
Fault reset switch, the fault reset switch other end is connected on temperature switch and divides it with conversion type relay input unit
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620518289.0U CN205791467U (en) | 2016-06-01 | 2016-06-01 | YE motor overload protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620518289.0U CN205791467U (en) | 2016-06-01 | 2016-06-01 | YE motor overload protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205791467U true CN205791467U (en) | 2016-12-07 |
Family
ID=58139096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620518289.0U Withdrawn - After Issue CN205791467U (en) | 2016-06-01 | 2016-06-01 | YE motor overload protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205791467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958445A (en) * | 2016-06-01 | 2016-09-21 | 宁夏银星吴忠仪表流体控制有限公司 | Motor overloading protection circuit for electric actuator |
-
2016
- 2016-06-01 CN CN201620518289.0U patent/CN205791467U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958445A (en) * | 2016-06-01 | 2016-09-21 | 宁夏银星吴忠仪表流体控制有限公司 | Motor overloading protection circuit for electric actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20180817 |