CN203811778U - Motor running state monitoring device - Google Patents
Motor running state monitoring device Download PDFInfo
- Publication number
- CN203811778U CN203811778U CN201420253290.6U CN201420253290U CN203811778U CN 203811778 U CN203811778 U CN 203811778U CN 201420253290 U CN201420253290 U CN 201420253290U CN 203811778 U CN203811778 U CN 203811778U
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Abstract
The utility model discloses a motor running state monitoring device relating to the motor speed measurement field. The motor running state monitoring device is used to solve the problems of the conventional motor running state monitoring devices such as complicated structure, high costs, and complicated operation. A power supply is used to supply an isolation DC/DC module, an adjustable voltage circuit, and a reference voltage output device with the power. The output end of the adjustable voltage circuit is connected with an input end of a first linear optical coupler, and the output end of the first linear optical coupler is connected with an input end of an amplifier circuit. An output end of the amplifier circuit is connected with the input end of the motor, and the output end of the motor is connected with an input end of a voltage acquisition circuit. The output end of the voltage acquisition circuit is connected with an input end of a second linear optical coupler, and the output end of the second linear optical coupler is connected with an input end of a comparison circuit. An output end of the reference voltage output device is connected with the input end of the comparison circuit, and the output end of the comparison circuit is connected with the input end of the isolation DC/DC module, and in addition, the output end of the isolation DC/DC module is connected with an input end of an LED indicating lamp. The motor running state monitoring device is used for detecting the rotating speed of the motor.
Description
Technical field
The utility model relates to motor operating state monitoring device.Belong to motor speed measuring field.
Background technology
Current existing motor all adopts single-chip microcomputer to drive conventionally, is convenient to like this motor to control, and facilitates on the other hand system speed regulating control, conventionally directly adopt the adjusting of chip microcontroller motor speed, make its apparatus structure complicated, claimed apparatus cost is high, the shortcoming of complicated operation.
Utility model content
The utility model is that existing motor operating state monitoring device complex structure, cost are high, the problem of complicated operation in order to solve.A kind of motor operating state monitoring device is now provided.
A kind of motor operating state monitoring device, it comprises adjustable voltage circuit, the first linear optical coupling, amplifying circuit, motor, voltage collection circuit, the second linear optical coupling, reference voltage output unit, comparator circuit, isolation DC/DC module, LED light and power supply
Described power supply provides power supply for isolating DC/DC module, adjustable voltage circuit and reference voltage output unit, the voltage signal output end of adjustable voltage circuit connects the voltage signal input end of the first linear optical coupling, the photoelectricity isolation signals output terminal of the first linear optical coupling connects the photoelectricity isolation signals input end of amplifying circuit, the power supply signal output terminal of amplifying circuit connects the power supply signal input end of motor
The voltage acquisition signal output part of motor connects the voltage acquisition signal input part of voltage collection circuit, the photoelectricity isolation signals output terminal of voltage collection circuit connects the photoelectricity isolation signals input end of the second linear optical coupling, the comparison signal output terminal of the second linear optical coupling connects the comparison signal input end of comparator circuit
The comparison signal output terminal of reference voltage output unit connects the comparison signal input end of comparator circuit, the isolation signals output terminal of comparator circuit connects the isolation signals input end of isolation DC/DC module, and the display output terminal of isolation DC/DC module connects the display input end of LED light.
It is whole system power supply that the utility model adopts power supply, and adjustable voltage circuit and amplifying circuit are used for providing working power to motor, make motor rotation; Wherein: adjustable voltage circuit is used for regulating the voltage of motor, the first linear optical coupling carries out photoelectricity isolation by the arrangements for speed regulation of motor, guarantees the security of circuit, then voltage signal is passed to amplifying circuit and carry out passing to motor after voltage amplification and carry out electric machine speed regulation;
Meanwhile, by the voltage of voltage collection circuit Real-time Collection motor, and send into comparator circuit as feedback voltage value, then through the second linear optical coupling, carry out the electrical security that photoelectricity isolation guarantees motor, the voltage signal of output is passed to comparator circuit, adopt the continuous adjusting resistance value of reference voltage output unit, output reference voltage compares to specified value (value of feedback) in comparator circuit and adjustable voltage circuit, if the value that reference voltage output unit is adjusted to equals adjustable voltage circuit specified value, LED light is bright, record motor speed now, as motor operating state value, export, this system is simple to operate, existing apparatus is simple to operate more than one times on year-on-year basis, this system architecture is simple, existing apparatus is simple in structure more than one times on year-on-year basis, in this system, the cost of modules is low, existing apparatus cost is low more than one times on year-on-year basis.It can be used for detecting motor speed.
Accompanying drawing explanation
Fig. 1 is the principle schematic of a kind of motor operating state monitoring device shown in embodiment one.
Embodiment
Embodiment one: illustrate present embodiment with reference to Fig. 1, a kind of motor operating state monitoring device described in present embodiment, it comprises adjustable voltage circuit 1, the first linear optical coupling 2, amplifying circuit 3, motor 4, voltage collection circuit 5, the second linear optical coupling 6, reference voltage output unit 16, comparator circuit 11, isolation DC/DC module 12, LED light 13 and power supply 14
Described power supply 14 provides power supply for isolating DC/DC module 12, adjustable voltage circuit 1 and reference voltage output unit 16, the voltage signal output end of adjustable voltage circuit 1 connects the voltage signal input end of the first linear optical coupling 2, the photoelectricity isolation signals output terminal of the first linear optical coupling 2 connects the photoelectricity isolation signals input end of amplifying circuit 3, the power supply signal output terminal of amplifying circuit 3 connects the power supply signal input end of motor 4
The voltage acquisition signal output part of motor 4 connects the voltage acquisition signal input part of voltage collection circuit 5, the photoelectricity isolation signals output terminal of voltage collection circuit 5 connects the photoelectricity isolation signals input end of the second linear optical coupling 6, the comparison signal output terminal of the second linear optical coupling 6 connects the comparison signal input end of comparator circuit 11
The comparison signal output terminal of reference voltage output unit 16 connects the comparison signal input end of comparator circuit 11, the isolation signals output terminal of comparator circuit 11 connects the isolation signals input end of isolation DC/DC module 12, and the display output terminal of isolation DC/DC module 12 connects the display input end of LED light 13.
In present embodiment, the first linear optical coupling and 6 pairs of systems of the second linear optical coupling are carried out photoelectricity isolation, the security of each circuit in assurance system.
Embodiment two: present embodiment is that a kind of motor operating state monitoring device described in embodiment one is described further, and in present embodiment, reference voltage output unit 16 comprises adjustable resistance 8 and constant-current source circuit 9,
The conditioning signal output terminal of described adjustable resistance 8 connects the conditioning signal input end of constant-current source circuit 9, and the comparison signal output terminal of constant-current source circuit 9 connects the comparison signal input end of comparator circuit 11.
Embodiment three: a kind of motor operating state monitoring device, voltage collection circuit 5 adopts voltage transformer (VT) to realize.
Principle of work: power supply is whole system power supply, and adjustable voltage circuit and amplifying circuit are used for providing working power to motor, make motor rotation; Wherein: adjustable voltage circuit is used for regulating the voltage of motor, the first linear optical coupling carries out photoelectricity isolation by the arrangements for speed regulation of motor, guarantees the security of circuit, then voltage signal is passed to amplifying circuit and carry out passing to motor after voltage amplification and carry out electric machine speed regulation;
Meanwhile, by the voltage of voltage collection circuit Real-time Collection motor, and send into comparator circuit as feedback voltage value; Then through the second linear optical coupling, carry out the electrical security that photoelectricity isolation guarantees motor, the voltage signal of output is passed to comparator circuit, adopt the continuous adjusting resistance value of adjustable resistance, output reference voltage compares to specified value (value of feedback) in comparator circuit and adjustable voltage circuit, if the value that adjustable resistance is adjusted to equals adjustable voltage circuit specified value, LED light is bright, records motor speed now, as motor operating state value, exports.
Claims (3)
1. a motor operating state monitoring device, it is characterized in that, it comprises adjustable voltage circuit (1), the first linear optical coupling (2), amplifying circuit (3), motor (4), voltage collection circuit (5), the second linear optical coupling (6), reference voltage output unit (16), comparator circuit (11), isolation DC/DC module (12), LED light (13) and power supply (14)
Described power supply (14) provides power supply for isolating DC/DC module (12), adjustable voltage circuit (1) and reference voltage output unit (16), the voltage signal output end of adjustable voltage circuit (1) connects the voltage signal input end of the first linear optical coupling (2), the photoelectricity isolation signals output terminal of the first linear optical coupling (2) connects the photoelectricity isolation signals input end of amplifying circuit (3), the power supply signal output terminal of amplifying circuit (3) connects the power supply signal input end of motor (4)
The voltage acquisition signal output part of motor (4) connects the voltage acquisition signal input part of voltage collection circuit (5), the photoelectricity isolation signals output terminal of voltage collection circuit (5) connects the photoelectricity isolation signals input end of the second linear optical coupling (6), the comparison signal output terminal of the second linear optical coupling (6) connects the comparison signal input end of comparator circuit (11)
The comparison signal output terminal of reference voltage output unit (16) connects the comparison signal input end of comparator circuit (11), the isolation signals output terminal of comparator circuit (11) connects the isolation signals input end of isolation DC/DC module (12), and the display output terminal of isolation DC/DC module (12) connects the display input end of LED light (13).
2. a motor operating state monitoring device, is characterized in that, reference voltage output unit (16) comprises adjustable resistance (8) and constant-current source circuit (9),
The conditioning signal output terminal of described adjustable resistance (8) connects the conditioning signal input end of constant-current source circuit (9), and the comparison signal output terminal of constant-current source circuit (9) connects the comparison signal input end of comparator circuit (11).
3. a motor operating state monitoring device, is characterized in that, voltage collection circuit (5) adopts voltage transformer (VT) to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253290.6U CN203811778U (en) | 2014-05-16 | 2014-05-16 | Motor running state monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253290.6U CN203811778U (en) | 2014-05-16 | 2014-05-16 | Motor running state monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203811778U true CN203811778U (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420253290.6U Expired - Fee Related CN203811778U (en) | 2014-05-16 | 2014-05-16 | Motor running state monitoring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203811778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081011A (en) * | 2019-04-17 | 2019-08-02 | 浙江三新科技有限公司 | A kind of axial flow fan of air conditioner motor safety operation control system |
-
2014
- 2014-05-16 CN CN201420253290.6U patent/CN203811778U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081011A (en) * | 2019-04-17 | 2019-08-02 | 浙江三新科技有限公司 | A kind of axial flow fan of air conditioner motor safety operation control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Jinlong Inventor after: Yang Lin Inventor after: Liu Lujia Inventor after: Shen Hongqiu Inventor before: Liu Jinlong Inventor before: Yang Lin Inventor before: Liu Lujia |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU JINLONG YANG LIN LIU LUJIA TO: LIU JINLONG YANG LIN LIU LUJIA SHEN HONGQIU |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 |
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| CF01 | Termination of patent right due to non-payment of annual fee |