CN202384750U - Motor controller - Google Patents
Motor controller Download PDFInfo
- Publication number
- CN202384750U CN202384750U CN2011205681504U CN201120568150U CN202384750U CN 202384750 U CN202384750 U CN 202384750U CN 2011205681504 U CN2011205681504 U CN 2011205681504U CN 201120568150 U CN201120568150 U CN 201120568150U CN 202384750 U CN202384750 U CN 202384750U
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- detection circuit
- circuit
- chip microcomputer
- motor
- electric machine
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- Control Of Electric Motors In General (AREA)
Abstract
The utility model provides a motor controller, which belongs to the technical field of motors, and solves the problems that a conventional motor controller cannot achieve direct observation that whether the motor is normally started or not, and cannot display the failure position of the motor. The motor controller provided by the utility model comprises a single-chip, as well as an overcurrent detection circuit, an undervoltage detection circuit and an open-phase detection circuit which are connected with the single-chip; a relay starting circuit for controlling the switching on/off of the main loop of the motor is connected to the single-chip; and an adjustable time delay circuit and a plurality of indicator lamps for indicating the detection result of the detection circuits are also connected to the single-chip. The motor controller provided by the utility model can achieve direct observation that whether the motor is normally started or not and display the position of failure of the motor.
Description
Technical field
The utility model belongs to technical field of motors, relates to a kind of electric machine controller.
Background technology
At present, for guaranteeing the motor safety stable operation of low-voltage power supply and distribution system, in motor, set up electric machine controller and be used to prevent burn-down of electric motor or cause serious accident.The prior motor controller has not only comprised the function of protection motor circuit, has also increased a lot of miscellaneous functions, and what have also has a telecommunications functions, can on PC, realize the motor of many All-China Federation of Taiwan Compatriots net carried out and keep watch on and control.The volume of electric machine controller is also done bigger and bigger.The more not only volumes of function are big, take up room, and testing circuit are complicated, makes that whole electric machine controller circuit is huge electrical fault investigation difficulty.
Summary of the invention
There are the problems referred to above in the utility model to existing technology, has proposed a kind of electric machine controller, and whether this electric machine controller is can the Direct observation electric motor starting normal and show where break down.
The utility model is realized through following technical proposal: a kind of electric machine controller; Comprise single-chip microcomputer and the over-current detection circuit that is connected with single-chip microcomputer, undervoltage detection circuit and lack detection circuit; On single-chip microcomputer, be connected with the start relay circuit that is used to control the motor main circuit break-make; It is characterized in that, be connected with the adjustable delay circuit on the described single-chip microcomputer and be used to indicate the indicator light of above-mentioned testing circuit testing result with several.
The kernel control chip of electric machine controller is a single-chip microcomputer; During electric motor starting, connect power supply, motor comes starter motor to move automatically through the relay closes in the Single-chip Controlling start relay circuit; And it is normal by indicator light indication operation; This controller has multiple protection functions simultaneously, is connected chip microcontroller by over-current detection circuit, undervoltage detection circuit and lack detection circuit respectively, and single-chip microcomputer detects motor operation circuit when overcurrent, overload, short circuit, phase shortage, multiple situation such as under-voltage occurring at above each testing circuit; The delay circuit time-delay confirms that above situation is true, and the Single-chip Controlling motor main circuit breaks off.The protection motor does not burn because of fault.The indicating circuit of single-chip microcomputer connection is simultaneously indicated the fault that occurs.Make things convenient for the maintainer to understand the source of trouble, easy to maintenance.
In above-mentioned electric machine controller, described over-current detection circuit is included as and is separately positioned on every current sensor of going up mutually, connects through comparator between each current sensor and the single-chip microcomputer.Each phase current in the current sensor senses alternating current machine input circuit, current sensor is exported corresponding electric current through comparator and send to single-chip microcomputer during current break, through the comparator comparison can directly give single-chip microcomputer whether electric current the signal of phone is arranged.When any phase current of motor suddenlyd change, Single-chip Controlling relay major loop closed the power machine operation.Be used to detect the infringement that current break that overcurrent, overload, short circuit etc. cause causes motor.
In above-mentioned electric machine controller, described undervoltage detection circuit comprises the voltage sensor that is arranged on the input power supply.Undervoltage detection circuit utilizes the voltage sensor senses mains voltage variations, and protection motor internal circuit is not changed by outside burst voltage.
In above-mentioned electric machine controller, described lack detection circuit comprises iron core and is arranged on the magnetic test coil on the iron core, and the triple line of motor is on iron core, and described magnetic test coil is connected with single-chip microcomputer through amplifying circuit.When three-phase equilibrium, the magnetic flux of iron core is zero, and the magnetic flux of iron core is non-vanishing when uneven, and the magnetic test coil on the iron core just produces induced electromotive force and sends to single-chip microcomputer through sending out circuit big.Single-chip microcomputer produces when induced electromotive force is arranged the delivery outlet control command and cuts off the motor relay major loop receiving.
In above-mentioned electric machine controller, described indicator light is three LED lamps, and described single-chip microcomputer is controlled corresponding LED lamp and lighted when receiving the signal of above-mentioned over-current detection circuit, undervoltage detection circuit or lack detection circuit.Single-chip microcomputer is when detecting any fault-signal of motor, and when sending control command, output current is lighted the LED lamp.Three LED lamps flickers of the fault that overcurrent, under-voltage and phase shortage occur different colours.
Compared with prior art, the utility model electric machine controller has the following advantages:
1, electric machine controller corresponding fault occurs through not homochromy flash for prompting motors such as LED, and whether electric machine controller is can the Direct observation electric motor starting normal and show where break down, thus convenient for maintaining.
2, electric machine controller is pointed out through the LED lamp, and LED lamp cost is low, has reduced whole electric machine controller cost of manufacture.
3, electric machine controller is realized electric motor protecting through multiple testing circuit, thereby makes the startup operation that motor can safety and stability, and is used to prevent burn-down of electric motor or causes serious accident.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure, 1, single-chip microcomputer; 2, over-current detection circuit; 3, undervoltage detection circuit; 4, lack detection circuit; 5, comparator; 6, amplifying circuit; 7, delay circuit; 8, start relay circuit; 9, indicator light; 10, contactor; 11, motor main circuit.
Embodiment
Below be the specific embodiment of the utility model, and combine accompanying drawing that the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
As shown in Figure 1; This electric machine controller comprises single-chip microcomputer 1 and the over-current detection circuit 2 that is connected with single-chip microcomputer 1, undervoltage detection circuit 3 and lack detection circuit 4; On single-chip microcomputer 1, be connected with the start relay circuit 8 that is used to control motor main circuit 11 break-makes; Start relay circuit 8 is connected with motor main circuit 11 through contactor 10, and this relay breaks off and closed disconnection and the closure of controlling contactor 10 on the motor main circuit 11.Be connected with adjustable delay circuit 7 on the single-chip microcomputer 1 and be used to indicate the indicator light 9 of above-mentioned testing circuit testing result with several.Indicator light 9 is three LED lamps, and single-chip microcomputer 1 is controlled corresponding LED lamp and lighted when receiving the signal of over-current detection circuit 2, undervoltage detection circuit 3 or lack detection circuit 4.Three LED lamps are the flashing lamp of different colours, like various colors such as red, blue, Huangs.Corresponding a kind of indicator light 9 flashes expression and breaks down to circuit, and like the corresponding red flashing lamp of under-voltage circuit, then under-voltage fault appears in indication circuit, makes things convenient for the maintainer to search fault.
Over-current detection circuit 2 is included as and is separately positioned on every current sensor of going up mutually, connects through comparator 5 between each current sensor and the single-chip microcomputer 1.Be used to detect the infringement that current break that overcurrent, overload, short circuit etc. cause causes motor.Undervoltage detection circuit 3 comprises the voltage sensor that is arranged on the input power supply.Undervoltage detection circuit 3 utilizes the voltage sensor senses mains voltage variations, and protection motor internal circuit is not changed by outside burst voltage.Lack detection circuit 4 comprises iron core and is arranged on the magnetic test coil on the iron core, and the triple line of motor is on iron core, and magnetic test coil is connected with single-chip microcomputer 1 through amplifier circuit 6.When three-phase equilibrium, the magnetic flux of iron core is zero, and the magnetic flux of iron core is non-vanishing when uneven, and the magnetic test coil on the iron core just produces induced electromotive force and sends to single-chip microcomputer 1 through sending out circuit big.Single-chip microcomputer 1 produces that delivery outlet control command block system relay start-up circuit 8 has also cut off motor main circuit 11 simultaneously when induced electromotive force is arranged receiving.
Energized; Relay closes in the single-chip microcomputer 1 control relay start-up circuit 8 triggers contactor 10 closures that are attached thereto and comes starter motor to move automatically, and when normally starting, three LED lamps are all lighted and do not glimmered; And it is normal by indicator light 9 indication operations; This controller has multiple protection functions simultaneously, is connected single-chip microcomputer 1 by over-current detection circuit 2, undervoltage detection circuit 3 and lack detection circuit 4 respectively and realizes, single-chip microcomputer 1 detects motor operation circuit when overcurrent, overload, short circuit, phase shortage, multiple situation such as under-voltage occurring at above each testing circuit; Delay circuit 7 time-delays confirm that above situation is true, and single-chip microcomputer 1 control motor main circuit 11 breaks off.The protection motor does not burn because of fault.The indicating circuit of single-chip microcomputer 1 connection is simultaneously indicated the fault that occurs.The out of order flash for prompting that carries out appears detecting in three corresponding testing circuits of LED lamp.Make things convenient for the maintainer to understand the source of trouble, easy to maintenance.
When this electric machine controller is used for three phase electric machine, needs three current sensors and the comparator 5 that is attached thereto to carry out every phase current and detect, when applying to monophase machine, need only a current sensor and comparator 5.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as single-chip microcomputer 1, over-current detection circuit 2, undervoltage detection circuit 3, lack detection circuit 4, comparator 5, amplifying circuit 6, delay circuit 7, start relay circuit 8, indicator light 9, contactor 10, motor main circuit 11 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (5)
1. electric machine controller; Comprise single-chip microcomputer (1) and the over-current detection circuit (2) that is connected with single-chip microcomputer (1), undervoltage detection circuit (3) and lack detection circuit (4); On single-chip microcomputer (1), be connected with the start relay circuit (8) that is used to control motor main circuit (11) break-make; It is characterized in that, be connected with adjustable delay circuit (7) on the described single-chip microcomputer (1) and several are used to indicate the indicator light (9) of above-mentioned testing circuit testing result.
2. electric machine controller according to claim 1 is characterized in that, described over-current detection circuit (2) is included as and is separately positioned on every current sensor of going up mutually, connects through comparator (5) between each current sensor and the single-chip microcomputer (1).
3. electric machine controller according to claim 2 is characterized in that, described undervoltage detection circuit (3) comprises the voltage sensor that is arranged on the input power supply.
4. according to claim 1 or 2 or 3 described electric machine controllers; It is characterized in that; Described lack detection circuit (4) comprises iron core and is arranged on the magnetic test coil on the iron core, and the triple line of motor is on iron core, and described magnetic test coil is connected with single-chip microcomputer (1) through amplifying circuit (6).
5. electric machine controller according to claim 4; It is characterized in that; Described indicator light (9) is three LED lamps, and described single-chip microcomputer (1) is controlled corresponding LED lamp and lighted when receiving the signal of above-mentioned over-current detection circuit (2), undervoltage detection circuit (3) or lack detection circuit (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205681504U CN202384750U (en) | 2011-12-30 | 2011-12-30 | Motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205681504U CN202384750U (en) | 2011-12-30 | 2011-12-30 | Motor controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202384750U true CN202384750U (en) | 2012-08-15 |
Family
ID=46633224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205681504U Expired - Fee Related CN202384750U (en) | 2011-12-30 | 2011-12-30 | Motor controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202384750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832610A (en) * | 2012-08-30 | 2012-12-19 | 江苏申久化纤有限公司 | Control device and method for preventing voltage fluctuation and tripping of electric network of heating medium circulating pump |
-
2011
- 2011-12-30 CN CN2011205681504U patent/CN202384750U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832610A (en) * | 2012-08-30 | 2012-12-19 | 江苏申久化纤有限公司 | Control device and method for preventing voltage fluctuation and tripping of electric network of heating medium circulating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG DOVOL ELECTRIC TECHNOLOGY CO., LTD. Free format text: FORMER NAME: TAIZHOU DOVOL TRANSMISSION TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 318028, No. 3-1 East Town Road, Chengjiang Industrial Zone, Taizhou, Zhejiang, Huangyan Patentee after: ZHEJIANG DOVOL ELECTRIC TECHNOLOGY CO., LTD. Address before: 318028, No. 3-1 East Town Road, Chengjiang Industrial Zone, Taizhou, Zhejiang, Huangyan Patentee before: Taizhou Dovol Transmission Technology Co., Ltd. |
|
| 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: 20120815 Termination date: 20161230 |