CN206575349U - A kind of control circuit for avoiding electro kinetic potential device drive motor scaling loss - Google Patents
A kind of control circuit for avoiding electro kinetic potential device drive motor scaling loss Download PDFInfo
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- CN206575349U CN206575349U CN201720284781.0U CN201720284781U CN206575349U CN 206575349 U CN206575349 U CN 206575349U CN 201720284781 U CN201720284781 U CN 201720284781U CN 206575349 U CN206575349 U CN 206575349U
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- potential device
- electronically controlled
- kinetic potential
- electro kinetic
- motor
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Abstract
The utility model discloses a kind of control circuit for avoiding electro kinetic potential device drive motor scaling loss, the problem of solving the electronically controlled motor easy scaling loss of electro kinetic potential device.In dc source（1）Anode on be connected with relay（2）, relay（2）The other end and electronically controlled motor（3）Automatically controlled input link together, in electronically controlled motor（3）Automatically controlled output end on be connected with resettable fuse（8）, resettable fuse（8）The other end by adjusting slide potentiometer manually（9）With dc source（1）Negative terminal link together；Electronically controlled motor（3）Output shaft pass through shaft coupling（4）With electro kinetic potential device（5）Sliding end（6）It is mechanically coupled together.By Current limited Control motor maximum output torque, prevent from causing motor and potentiometer to damage because crossing torsion, be particluarly suitable for remote control, automatic control and require to use in accurate control place.
Description
Technical field
The utility model is related to a kind of drive control circuit of electro kinetic potential device moving contact, and more particularly to one kind can avoid electricity
The control circuit of electrokinetic potential device drive motor scaling loss.
Background technology
Electro kinetic potential device is a kind of automatically controlled slide rheostat, and the rheostatic sliding end is driven by electronically controlled motor
Sliding end is at the uniform velocity moved, to complete change in resistance adjustment, because the application conditions of electro kinetic potential device are different, electro kinetic potential device
The at the uniform velocity translational speed requirement of electronically controlled motor is also different, the at the uniform velocity translational speed of the electronically controlled motor of existing electro kinetic potential device
It is constant, it is necessary to choose different potentiometers under different application environments.In addition, in the electronically controlled motor of electro kinetic potential device
At the uniform velocity in moving process, when electronically controlled motor driving mobile terminal is at the uniform velocity moved to potentiometric terminal position, often occurs electricity
Motor lock-rotor phenomenon is controlled, under locked rotor condition, the electric current in electronically controlled motor control circuit can continue to raise, and cause electronically controlled motor line
Enclose scaling loss.
The content of the invention
The utility model provides a kind of control circuit for avoiding electro kinetic potential device drive motor scaling loss, solves electronic
The technical problem of the easy scaling loss of electronically controlled motor of potentiometer.
The utility model is to solve above technical problem by the following technical programs：
A kind of control circuit for avoiding electro kinetic potential device drive motor scaling loss, including dc source, relay, electronic electricity
The position electronically controlled motor of device, shaft coupling, electro kinetic potential device and slide potentiometer is adjusted manually, electro kinetic potential device, which is connected in series in, to be used
In circuit, relay is connected with the anode of dc source, the other end of relay and the automatically controlled input of electronically controlled motor connect
It is connected together, resettable fuse is connected with the automatically controlled output end of electronically controlled motor, the other end of resettable fuse passes through
The negative terminal of regulation slide potentiometer and dc source links together manually；The output shaft of electronically controlled motor by shaft coupling with it is electronic
The sliding end of potentiometer is mechanically coupled together.
The blowout current of resettable fuse is equal with the maximum permissible current of electronically controlled motor.
The utility model electro kinetic potential device resistance is adjustable to maximum by zero；With traditional limit switch protected mode ratio
Compared with adjustable range is bigger；When adjusting resistance output, use two path control signal to adjust, and with changing polarity of voltage
Mode ratio, regulation is more stablized, relatively reliable；By Current limited Control motor maximum output torque, prevent from causing motor because crossing torsion
Damaged with potentiometer, be particluarly suitable for remote control, automatic control and require to use in accurate control place.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
This practicality is described in detail below in conjunction with the accompanying drawings：
A kind of control circuit for avoiding electro kinetic potential device drive motor scaling loss, including it is dc source 1, relay 2, electronic
Electronically controlled motor 3, shaft coupling 4, electro kinetic potential device 5 and the manual regulation slide potentiometer 9 of potentiometer, the series connection of electro kinetic potential device 5 connect
It is connected on and uses in circuit 7, relay 2, the other end and the electronically controlled motor 3 of relay 2 is connected with the anode of dc source 1
Automatically controlled input M is linked together, and resettable fuse 8 is connected with the automatically controlled output end T of electronically controlled motor 3, and self- recoverage is protected
The other end of dangerous silk 8 is linked together by adjusting the negative terminal of slide potentiometer 9 and dc source 1 manually；Electronically controlled motor 3 it is defeated
Shaft is mechanically coupled together by the sliding end 6 of shaft coupling 4 and electro kinetic potential device 5.
The blowout current of resettable fuse 8 is equal with the maximum permissible current of electronically controlled motor 3.
When electronically controlled motor 3 slides into the end of electro kinetic potential device 5 by the sliding end 6 of the driving electro kinetic potential of shaft coupling 4 device 5
Afterwards, due to obstruction mechanically, sliding end 6 can not be slided again, occurred electronically controlled motor stall phenomenon, caused the institute of electro kinetic potential device 5
After electric current I increases in circuit, the blowout current more than resettable fuse 8, resettable fuse 8 fuses, so as to cut off
The supply current I of electronically controlled motor 3, electronically controlled motor 3 stops operating, so as to play the work that electronically controlled motor is easily burnt when overcoming stall
With.Drive the sliding end 6 of electro kinetic potential device 5 in moving process in electronically controlled motor, if running into accidental mechanical retardance, self- recoverage is protected
Dangerous silk 8 fuses, you can play a part of protecting electronically controlled motor, and after machinery retardance is released, supply current I drops to self- recoverage guarantor
Below the dangerous blowout current of silk 8, resettable fuse 8 restores electricity, and horse-controlling continues to move up to the sliding end 6 of driving electro kinetic potential device 5
It is dynamic.
The resistance value of slide potentiometer 9 can be adjusted manually by regulation to change the supply voltage of electronically controlled motor 3, so as to change
Become the rotary speed of electronically controlled motor 3, the rotary speed realizes the difference of the sliding end 6 of electro kinetic potential device 5 by shaft coupling 4 again
Translational speed, to meet the various different application environmental conditions of electro kinetic potential device.
Claims (2)
1. a kind of control circuit for avoiding electro kinetic potential device drive motor scaling loss, including dc source（1）, relay（2）, electricity
The electronically controlled motor of electrokinetic potential device（3）, shaft coupling（4）, electro kinetic potential device（5）With manual regulation slide potentiometer（9）, electro kinetic potential
Device（5）It is connected in series in and uses circuit（7）In, it is characterised in that in dc source（1）Anode on be connected with relay（2）,
Relay（2）The other end and electronically controlled motor（3）Automatically controlled input link together, in electronically controlled motor（3）Automatically controlled output
Resettable fuse is connected with end（8）, resettable fuse（8）The other end by adjusting slide potentiometer manually（9）With
Dc source（1）Negative terminal link together；Electronically controlled motor（3）Output shaft pass through shaft coupling（4）With electro kinetic potential device（5）'s
Sliding end（6）It is mechanically coupled together.
2. a kind of control circuit for avoiding electro kinetic potential device drive motor scaling loss according to claim 1, its feature exists
In resettable fuse（8）Blowout current be and electronically controlled motor（3）Maximum permissible current it is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720284781.0U CN206575349U (en) | 2017-03-22 | 2017-03-22 | A kind of control circuit for avoiding electro kinetic potential device drive motor scaling loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720284781.0U CN206575349U (en) | 2017-03-22 | 2017-03-22 | A kind of control circuit for avoiding electro kinetic potential device drive motor scaling loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206575349U true CN206575349U (en) | 2017-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720284781.0U Active CN206575349U (en) | 2017-03-22 | 2017-03-22 | A kind of control circuit for avoiding electro kinetic potential device drive motor scaling loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206575349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161444A (en) * | 2020-09-23 | 2021-01-01 | 蒋龙全 | Energy-saving environment-friendly reciprocating uniform-speed rotating drying mechanism |
-
2017
- 2017-03-22 CN CN201720284781.0U patent/CN206575349U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161444A (en) * | 2020-09-23 | 2021-01-01 | 蒋龙全 | Energy-saving environment-friendly reciprocating uniform-speed rotating drying mechanism |
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