CN208753969U - The motor circuit protector of adjustable electric machine operation state - Google Patents
The motor circuit protector of adjustable electric machine operation state Download PDFInfo
- Publication number
- CN208753969U CN208753969U CN201821537687.2U CN201821537687U CN208753969U CN 208753969 U CN208753969 U CN 208753969U CN 201821537687 U CN201821537687 U CN 201821537687U CN 208753969 U CN208753969 U CN 208753969U
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- China
- Prior art keywords
- circuit
- motor
- processor
- protector
- state detection
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Abstract
The motor circuit protector of adjustable electric machine operation state, belongs to electric motor protecting field.The utility model is in order to improve the performance of motor protecter; including power supply circuit, display circuit, warning circuit, Acquisition Circuit, telecommunication circuit, motor distributor, processor and ON-OFF control circuit; ON-OFF control circuit includes state detection circuit, output control circuit, driving circuit, folding motor and mechanical switch, realizes the protection to motor in the course of work by the working condition that the folding of processor control switch control circuit changes motor；The utility model is vdiverse in function, fast response time, strong antijamming capability, when the temperature rise of electric current or motor in circuit is excessively high.
Description
Technical field
Embodiments described herein is related to motor protecter.More particularly, to the motor of adjustable electric machine operation state
Circuit protector.
Background technique
In the motor course of work, motor is usually because load variation or emergency situations lead to the electric current by motor route
Excessive or temperature rise is excessively high.In order to avoid such situation, a circuit protector can be concatenated in the line attachment of motor, when motor temperature
Liter or electric current can be with power-off protections when excessive.
Domestic motor duty research at present is less, and most of motor protecter only closes electricity under dangerous situation
Machine protects its disconnected can stall, once and motor is run under certain duty, it may appear that temporarily or permanently danger is believed
Number early warning, then the motor will be in short-term or permanent idle, causes the waste of resource,
Current circuit protector type is varied, and the temperature rise of the typically size of current and motor of detection motor is sentenced
The operating status of power machine.Subsequent cooling method is relied on to the protection of motor, i.e. power-off is shut down, for being suitable for a variety of dutys
Load, motor is likely to result in using insufficient using such protected mode, causes motor utilization rate low, and existing guarantor
The number limitation that shield device does not have circuit protection to start, motor are often burnt in power-off protection and the circulation for restarting operation, and one
Determine in degree, cause the waste of motor, therefore, electric machine operation state is carried out using motor protecter to be converted into motor guarantor
One new direction of shield, however, requirement of the motor filling conversion to the reliability of motor circuit protector and relay protection compared with
It is high, it is clear that motor protecter in the prior art has a single function, and corresponding speed is slow, has been unable to meet reality vulnerable to external interference
It needs.
Summary of the invention
Correspondingly, the embodiments of the present invention can provide a kind of motor circuit protection of adjustable electric machine operation state
Device, vdiverse in function, fast response time, strong antijamming capability.
The motor circuit protector of the adjustable electric machine operation state of the utility model, including power supply circuit, display circuit,
Warning circuit, Acquisition Circuit, telecommunication circuit, motor distributor, processor and ON-OFF control circuit, the ON-OFF control circuit packet
State detection circuit, output control circuit, driving circuit, folding motor and mechanical switch are included, the output end of processor passes through defeated
The input terminal of control circuit connection driving circuit out, the output end of driving circuit is established by folding motor and mechanical switch to be connected
It connecing, the input terminal of the state detection circuit connects mechanical switch, and the output end and processor of state detection circuit establish connection,
The output end of motor distributor establishes connection, power supply circuit, display circuit, alarm electricity by the feeder ear of mechanical switch and motor
Road, Acquisition Circuit and telecommunication circuit establish connection with processor respectively.
Further, gate-dividing state detection circuit and "on" position the detection electricity that the state detection circuit includes and connects
Road, gate-dividing state detection circuit are identical with "on" position detection circuit structure.
Further, the output control circuit includes sequentially connected first switch tube, optocoupler and second switch.
Further, the motor circuit protector includes expanding interface, expands interface and processor establishes connection, reserve
Compared with multiplex roles, can determine to determine by detecting which kind of parameter according to the actual situation protector when to motor into
Row protection.
The utility model compared to the prior art, has the following beneficial effects:
1, the ON-OFF control circuit of the protector of the utility model includes state detection circuit, output control circuit, driving
Circuit, folding motor and mechanical switch, state detection circuit are used to detect the folding condition of mechanical switch, state detection circuit inspection
The folding condition of mechanical switch to be surveyed, and will test result and send to processor, processor send control instruction to output control circuit,
Output control circuit output drive signal to driving circuit so that control folding motor work, complete mechanical switch opening and
It closes, ON-OFF control circuit is made to meet the requirement of the relay protections such as reliability, quick-action, sensitivity.
2, the motor circuit protector of the utility model includes power supply circuit, is that protector is independently-powered, gets rid of to outside
The dependence of power supply；The triggering of circuit protector is shown and recorded with display circuit, it is further to give technical staff
It studies motor duty and offer data is provided；Warning device is in motor stopping or alarm is issued when restarting, in motor once occurring
Preset dangerous situation；The use of telecommunication circuit can expand upper and lower computer communication, realize long-range control.
Detailed description of the invention
Fig. 1 shows the overall structure block diagram of one embodiment according to the present utility model；
Fig. 2 shows the state detection circuits of one embodiment according to the present utility model；
Fig. 3 shows the output control circuit of one embodiment according to the present utility model.
Specific embodiment
Fig. 1 shows the motor circuit protection of the adjustable electric machine operation state of one embodiment according to the present utility model
Device, including power supply circuit, display circuit, warning circuit, Acquisition Circuit, telecommunication circuit, motor distributor, processor and switch control
Circuit processed, the power supply circuit of the present embodiment include the voltage stabilizing chip 7805 that power supply is connected in series, and display circuit includes being connected in series
Coding chip 74H138 and charactron, Acquisition Circuit includes current collection circuit and temperature collection circuit, current collection circuit
Current transformer and shunting amplifier chip AD8217 including series connection, temperature collection circuit include that thermocouple and modulus turn
Parallel operation ADC0809, the installation of TC is inside motor；The ON-OFF control circuit includes state detection circuit, output control
Circuit processed, driving circuit, folding motor and mechanical switch, the output end of processor connect driving circuit by output control circuit
Input terminal, the output end of driving circuit establishes connection by folding motor and mechanical switch, the state detection circuit it is defeated
Enter end connection mechanical switch, the output end and processor of state detection circuit establish connection, and the output end of motor distributor passes through
The feeder ear of mechanical switch and motor establishes connection, power supply circuit, display circuit, warning circuit, Acquisition Circuit and telecommunication circuit
Connection, the alarm, display, writing circuit are established with processor respectively, the triggering of various situations is recorded and shown, motor work
Make to issue prompt tone when system switching, motor stopping or while restarting issue alarm, record change frequency, the triggering of motor duty
When external parameter and protector current operation program show the current state of motor and locating duty.
The gate-dividing state detection circuit and "on" position detection circuit that the state detection circuit includes and connects, gate-dividing state
Detection circuit is identical with "on" position detection circuit structure, and Fig. 2 is the schematic diagram of the gate-dividing state detection circuit of the present embodiment, point
Lock state detection circuit includes the filter circuit being connected in series and isolation optocoupler, between isolation optocoupler U1 and processor and is connected to
Pull-up resistor R, filter circuit include the filter capacitor C for being attempted by isolation optocoupler input terminal, can weaken machinery by filter capacitor C
The influence in open and close operation momentary pulse to circuit is switched, high dither is effectively filtered out, when mechanical switch closure, every
The side LED conducting from optocoupler U1 shines, and the I/O pin of driving other side processor is low level, when mechanical switch disconnects, every
The side LED cut-off from optocoupler does not shine, and the I/O pin of processor is high level under the action of pull-up resistor R, and then the moment will
The state of mechanical switch feeds back to processor；
As shown in figure 3, the output control circuit includes sequentially connected first switch tube Q1, optocoupler U2 and second switch
Pipe Q2 needs to meet relay protection rule, therefore the first switch of present embodiment during switching motor realizes switching
Pipe Q1 and second switch Q2, which is all made of, completes switch operation using IGBT switch chip, but the conducting voltage that the switch is played is far small
In the output voltage of processor, therefore, the present embodiment carries out level conversion using optocoupler U2, and main control chip exports high level, light
LED in coupling shines, and is transformed to low pressure and is added in the base stage of second switch Q2 that second switch Q2 is connected, at this time driving electricity
Road conducting, folding motor drives mechanical switch to close a floodgate, on the contrary, the LED in optocoupler U2 ends, the base voltage of second switch Q2
It close to GND, exports as off state, opens and closes motor at this time and do not work, mechanical switch does not work.
For the processor that the application uses for 8051 chips, the motor circuit protector includes expanding interface, expands interface
Connection is established with processor, is being produced in practice, it is possible to determine the operation to motor by other parameters or situation, reserve
Certain port is according to practical extraneous sensor or trigger.
The foregoing description of the embodiments of the present invention provides for the purpose of illustration and explanation.They are not
Exhaustive is also not meant to limit the invention to these contents accurately described, can be under the guide of above-mentioned introduction
There are many modifications and changes.These embodiments are selected and description merely to best illustration the principles of the present invention and it
Practical application so that those skilled in the art can preferably in various embodiments and use is suitable for being expected
Specific various changes used apply the utility model.It is understood, therefore, that the utility model is intended to be covered on down
All changes in the scope of the claims of face and equivalent.
Claims (4)
1. the motor circuit protector of adjustable electric machine operation state, including power supply circuit, display circuit, warning circuit, acquisition
Circuit, telecommunication circuit, motor distributor, processor and ON-OFF control circuit, it is characterised in that: the ON-OFF control circuit includes
State detection circuit, output control circuit, driving circuit, folding motor and mechanical switch, the output end of processor pass through output
Control circuit connects the input terminal of driving circuit, and the output end of driving circuit establishes connection by folding motor and mechanical switch,
The input terminal of the state detection circuit connects mechanical switch, and the output end and processor of state detection circuit establish connection, electricity
The output end of machine distributor establishes connection, power supply circuit, display circuit, alarm electricity by the feeder ear of mechanical switch and motor
Road, Acquisition Circuit and telecommunication circuit establish connection with processor respectively.
2. the motor circuit protector of electric machine operation state is adjusted according to claim 1, it is characterised in that: the state
The gate-dividing state detection circuit and "on" position detection circuit that detection circuit includes and connects, gate-dividing state detection circuit and combined floodgate shape
State detection circuit structure is identical.
3. the motor circuit protector of electric machine operation state is adjusted according to claim 1, it is characterised in that: the output
Control circuit includes sequentially connected first switch tube, optocoupler and second switch.
4. the motor circuit protector of electric machine operation state is adjusted according to claim 1, it is characterised in that: the motor
Circuit protector includes expanding interface, expands interface and processor establishes connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821537687.2U CN208753969U (en) | 2018-09-20 | 2018-09-20 | The motor circuit protector of adjustable electric machine operation state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821537687.2U CN208753969U (en) | 2018-09-20 | 2018-09-20 | The motor circuit protector of adjustable electric machine operation state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208753969U true CN208753969U (en) | 2019-04-16 |
Family
ID=66084884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821537687.2U Expired - Fee Related CN208753969U (en) | 2018-09-20 | 2018-09-20 | The motor circuit protector of adjustable electric machine operation state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208753969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066596A (en) * | 2018-09-20 | 2018-12-21 | 哈尔滨理工大学 | The motor circuit protector and its working method of adjustable electric machine operation state |
-
2018
- 2018-09-20 CN CN201821537687.2U patent/CN208753969U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066596A (en) * | 2018-09-20 | 2018-12-21 | 哈尔滨理工大学 | The motor circuit protector and its working method of adjustable electric machine operation state |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20190416 Termination date: 20190920 |