CN206023185U - A kind of electric motor protecting control circuit - Google Patents
A kind of electric motor protecting control circuit Download PDFInfo
- Publication number
- CN206023185U CN206023185U CN201620940662.1U CN201620940662U CN206023185U CN 206023185 U CN206023185 U CN 206023185U CN 201620940662 U CN201620940662 U CN 201620940662U CN 206023185 U CN206023185 U CN 206023185U
- Authority
- CN
- China
- Prior art keywords
- module
- amplifier
- self
- control circuit
- electric motor
- 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 discloses a kind of electric motor protecting control circuit; including signal acquisition module, signal amplification module, self-locking protective circuit module and performing module; described signal acquisition module is by the signal transmission for gathering to signal amplification module; the described output end of signal amplification module is connected with the input of self-locking protective circuit, and described self-locking protective circuit module is exported to performing module.The utility model has the advantages that circuit structure is simple, it is convenient to realize, can be cost-effective；The reliability of circuit is high, reduces the fault rate of motor, can be effectively protected motor.
Description
Technical field
The utility model is related to a kind of control circuit, more particularly to a kind of electric motor protecting control circuit.
Background technology
Motor is applied widely in daily life, and company is sent out in daily production and maintenance electric machine controller product
Now, the motor of product and controller damage are more, and original motor protective circuit is not only complicated, and reliability is not high.Existing
The motor protective circuit of technology obviously can not be effectively protected motor.
Utility model content
The purpose of this utility model is to provide a kind of electric motor protecting control circuit, and the circuit can effectively realize motor
Protection, reduces the fault rate of motor.
To achieve these goals, the utility model includes signal acquisition module, signal amplification module, self-locking protective circuit
Module and performing module, by the signal transmission for gathering to signal amplification module, described signal is put for described signal acquisition module
The big output end of module is connected with the input of self-locking protective circuit, and described self-locking protective circuit module is exported to execution mould
Block.
Described signal amplification module includes that the first amplifier, the end in the same direction of the first described amplifier are connected with signal acquisition module
Connect, backward end is grounded by resistance R.
Described self-locking protective circuit module includes that the second amplifier, the end in the same direction of the second described amplifier amplify mould with signal
The output end connection of block, the backward end input reference voltage of described the second amplifier, resistance R and diode D1 are arranged in series in the
Between the end in the same direction of two amplifiers and output end.
Described signal amplification module output end is connected with the positive pole of diode D2, the negative pole of described diode D2 with from
The input connection of lock protection circuit.
Described protection control circuit also includes de-preservation module, described de-preservation module and self-locking protective circuit
Module connects.
Described de-preservation module includes the base of single-chip microcomputer, triode Q1 and resistance, described single-chip microcomputer and triode
Pole connects, and, between collector and emitter, the collector terminal of triode Q1 is in the same direction with the second amplifier for described resistor coupled in parallel
End connection.
The utility model has the advantages that circuit structure is simple, it is convenient to realize, can be cost-effective；The reliability of circuit is high,
The fault rate of motor is reduced, motor can be effectively protected.
Description of the drawings
Below in conjunction with the accompanying drawings the utility model is described further.
Fig. 1 is a kind of electric motor protecting control circuit structured flowchart described in the utility model
Fig. 2 is a kind of circuit theory diagrams of motor protective circuit described in the utility model.
Reference in figure is respectively：1. signal acquisition module；2. signal amplification module；3. self-locking protective circuit mould
Block；4. performing module；5. de-preservation module
Specific embodiment
As shown in figure 1, signal acquisition module 1 is used for gathering the electrical signal data in motor circuit, mould is amplified by signal
Signal is amplified by block 2, and 2 output end of signal amplification module is connected with the input of self-locking protective circuit module 3, self-locking protective circuit
3 output end of module is connected with the input of performing module 4, and performing module 4 protects motor to motor circuit action.When motor event
After barrier is excluded, acted on by 5 de-preservation of de-preservation module, de-preservation module 5 is connected with 3 module of self-locking protective circuit.
Performing module 4 be prior art motor protection circuit in execution circuit, its implementation be signal transmission to control unit such as
The gateway of single-chip microcomputer, single-chip microcomputer is according to the switch module for judging to send control signal extremely click operating loop, and then disconnects electricity
, to performing module 4, performing module 4 is on-off circuit for the operation of machine or this control circuit output signal, and the signal of input is sent to
The on-off circuit of motor operation, cuts off motor power, so as to realize electric motor protecting.Therefore performing module is that prior art is conventional
The performing module of protection motor, belongs to prior art, does not elaborate here.
Signal amplification module 2 includes that the first amplifier, the end in the same direction of the first amplifier are connected with signal acquisition module, and backward end leads to
Resistance R ground connection being crossed, filter circuit being provided between backward end and output end, filter circuit includes resistance R and electric capacity C, resistance R
It is arranged in parallel between the backward end of the first amplifier and output end with electric capacity C.
Self-locking protective circuit module 3 includes the second amplifier, the end in the same direction of the second amplifier and the output end of signal amplification module
Connection, the backward end input reference voltage of described the second amplifier, resistance R are arranged in series in the same of the second amplifier with diode D1
To between end and output end.The positive pole of diode D1 is connected with the output end of the second amplifier by resistance R, negative pole and the second amplifier
Backward end connection.Diode D2, the positive pole of diode D2 and the first amplifier is provided between the first amplifier and the second amplifier
Output end connection, the negative pole of diode D2 is connected with the forward end of the second amplifier.Reference voltage be power supply through current-limiting resistance after
It is input into the backward end of the second amplifier, supply voltage is+5V.
De-preservation module 5 includes that single-chip microcomputer, triode Q1 and resistance R, single-chip microcomputer are connected with the base stage of triode, resistance
It is connected in parallel between collector and emitter, the collector terminal of triode Q1 is connected with the end in the same direction of the second amplifier.Work as motor circuit
After failture evacuation, single-chip microcomputer exports the base stage of high level to triode Q1 by serial ports, by the current potential of the forward end of the second amplifier
Undercut, so as to release self-locking state, so as to de-preservation.Schottky type diodes of the diode D1 and D2 using encapsulation one.
So, temperature characterisitic can be consistent, and the reverse recovery time of this diode is short, and reliability is improved.This circuit is tied
Structure is simple, it is easy to accomplish, as long as components and parts are qualified, without the need for debugging, can either normal work.When need adjust protection act point
When, as long as changing the reverse terminal potential of the multiplication factor or the second amplifier of the first amplifier, practical, range of application
Extensively.
The operation principle of this circuit is：After motor circuit breaks down, current potential is caused to raise, signal acquisition module 1 is gathered
Send to after signal to the first amplifier and be amplified process, through the end in the same direction that diode D2 is sent to the second amplifier, the second fortune
The current potential of the output end that puts is uprised by low, then the end in the same direction for feeding back to the second amplifier by diode D1, realizes self-locking, the second fortune
The output end that puts is connected with performing module, performing module perseveration, disconnecting circuit, protects motor.Resistance R1 is current-limiting resistance,
Protection diode D1.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the utility model is implemented not by above-mentioned
The restriction of mode, if the improvement of the various unsubstantialities that technical solutions of the utility model are carried out is employed, or not improved general
The design and technical scheme of the present invention directly applies to other occasions, within protection domain of the present utility model.
Claims (6)
1. a kind of electric motor protecting control circuit, including signal acquisition module (1), it is characterised in that：Also include signal amplification module
(2), self-locking protective circuit module (3) and performing module (4), described signal acquisition module (1) by the signal transmission for gathering extremely
Signal amplification module (2), the described output end of signal amplification module (2) are connected with the input of self-locking protective circuit module (3)
Connect, described self-locking protective circuit module (3) is exported to performing module (4).
2. a kind of electric motor protecting control circuit as claimed in claim 1, it is characterised in that：Described signal amplification module (2)
Including the first amplifier, the end in the same direction of the first described amplifier is connected with signal acquisition module (1), and backward end is connect by resistance R2
Ground.
3. a kind of electric motor protecting control circuit as claimed in claim 1, it is characterised in that：Described self-locking protective circuit module
(3) include the second amplifier, the end in the same direction of the second described amplifier is connected with the output end of signal amplification module (2), described the
The backward end input reference voltage of two amplifiers, resistance R1 and diode D1 are arranged in series in end in the same direction and the output end of the second amplifier
Between.
4. a kind of electric motor protecting control circuit as claimed in claim 2 or claim 3, it is characterised in that：Described signal amplification module
(2) output end is connected with the positive pole of diode D2, the negative pole of described diode D2 and the input of self-locking protective circuit module (3)
End connection.
5. a kind of electric motor protecting control circuit as claimed in claim 1, it is characterised in that：Described protection control circuit is also wrapped
De-preservation module (5) is included, described de-preservation module (5) is connected with self-locking protective circuit module (3).
6. a kind of electric motor protecting control circuit as claimed in claim 5, it is characterised in that：Described de-preservation module (5)
Including single-chip microcomputer, triode Q1 and resistance R3, described single-chip microcomputer is connected with the base stage of triode, and described resistance R3 is connected in parallel on
Between collector and emitter, the collector terminal of triode Q1 is connected with the end in the same direction of the second amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620940662.1U CN206023185U (en) | 2016-08-25 | 2016-08-25 | A kind of electric motor protecting control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620940662.1U CN206023185U (en) | 2016-08-25 | 2016-08-25 | A kind of electric motor protecting control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206023185U true CN206023185U (en) | 2017-03-15 |
Family
ID=58251717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620940662.1U Expired - Fee Related CN206023185U (en) | 2016-08-25 | 2016-08-25 | A kind of electric motor protecting control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206023185U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517459A (en) * | 2019-08-28 | 2019-11-29 | 广东好太太科技集团股份有限公司 | A kind of the electric motor protecting control circuit and method of clothes airing machine |
| CN114006354A (en) * | 2021-09-16 | 2022-02-01 | 北京无线电测量研究所 | Overcurrent protection circuit |
-
2016
- 2016-08-25 CN CN201620940662.1U patent/CN206023185U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517459A (en) * | 2019-08-28 | 2019-11-29 | 广东好太太科技集团股份有限公司 | A kind of the electric motor protecting control circuit and method of clothes airing machine |
| CN114006354A (en) * | 2021-09-16 | 2022-02-01 | 北京无线电测量研究所 | Overcurrent protection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191105 Address after: 241000 floor 1, workshop 4, high tech Industrial Development Zone, Yijiang District, Wuhu City, Anhui Province Patentee after: ANHUI HAOSHI PHOTOELECTRIC TECHNOLOGY Co.,Ltd. Address before: 241000 Anhui Province, Wuhu city Yijiang District South high tech Development Zone Technology Park mansion Patentee before: Anhui Huadong Polytechnic Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20210825 |