CN201075668Y - Alternating current motor electric current detecting type control system - Google Patents

Alternating current motor electric current detecting type control system Download PDF

Info

Publication number
CN201075668Y
CN201075668Y CNU200720143253XU CN200720143253U CN201075668Y CN 201075668 Y CN201075668 Y CN 201075668Y CN U200720143253X U CNU200720143253X U CN U200720143253XU CN 200720143253 U CN200720143253 U CN 200720143253U CN 201075668 Y CN201075668 Y CN 201075668Y
Authority
CN
China
Prior art keywords
alternating current
current motor
microprocessor
relay group
control system
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
Application number
CNU200720143253XU
Other languages
Chinese (zh)
Inventor
杨甡生
廖昱璁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tung Thih Enterprise Co Ltd
Original Assignee
Tung Thih Enterprise Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tung Thih Enterprise Co Ltd filed Critical Tung Thih Enterprise Co Ltd
Priority to CNU200720143253XU priority Critical patent/CN201075668Y/en
Application granted granted Critical
Publication of CN201075668Y publication Critical patent/CN201075668Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

The utility model relates to a current detection type control system for an AC motor, and is applied to the AC motor; the AC motor controls the movement of a roll door and contains a microprocessor, a relay unit, a control interface and a current detection circuit; the current detection circuit is used for detecting the current of the output end of the AC motor; when the current rises, the microprocessor controls the relay unit to switch the movement to roll door to stop or lift; in this way the safety performance is improved and also the utility model has the advantages of high installation efficiency.

Description

A kind of alternating current motor current sense formula control system
Technical field
The utility model relates to a kind of alternating current motor current sense formula control system, be meant the electric current that relies on current-sensing circuit detecting alternating current motor output especially, and with microprocessor control relay group change action, and then the control rolling door stops or the rising that rebounds, reach the raising fail safe, and have the advantage that improves installation effectiveness simultaneously.
Background technology
When electric iron rolling door descended, accident crushed people's accident, the time what is heard is arranged, therefore at present also develop the safety device that many electric iron rolling doors on the market, use for the dealer.Seeing also Fig. 1 and shown in Figure 2, is the safety device of existing electric iron rolling door shown in the figure, comprises that a rolling door 1 and is installed in the pressure sensor 2 (as limit switch) of rolling door 1 root edge.When rolling door 1 down maneuver, and pressure sensor 2 is pressed when touching foreign matter, and described pressure sensor 2 promptly sends a signal and gives rolling door 1, the action that makes rolling door 1 stop to descend.
Yet the safety device of above-mentioned electric iron rolling door is that indirect working pressure transducer 2 control rolling doors 1 are opened, and therefore must increase considerable parts (as switch, transistor AND gate electric capacity etc.), just can reach above-mentioned purpose; And when one of them little spare part damages, will cause whole safety device to use, so the chance of fault is bigger.Moreover when above-mentioned electric iron rolling door was installed safety device, therefore configuration circuit was in addition installed comparatively loaded down with trivial detailsly, reduces installation effectiveness relatively.
In addition, when the safety device of electric iron rolling door was to use wireless transmission, the situation that also might meet with dead battery took place, and made its safety device can't normal operation, and then produced dangerous, very undesirable.
Have in view of that, the utility model designer is based on the demand of the safety device of electric iron rolling door, is being engaged in the experience accumulation that this industry designs for many years, and creates a kind of alternating current motor current sense formula control system, is provided with the required utilization of this industry.
Summary of the invention
Prior art shortcoming in view of the above, main purpose of the present utility model provide a kind of fail safe and alternating current motor current sense formula control system that improves installation effectiveness of improving.
For reaching above-mentioned purpose and other purpose, the utility model provides a kind of alternating current motor current sense formula control system, is to be applied in alternating current motor, and described alternating current motor is the action of control rolling door, include a microprocessor, a relay group, a control interface and a current-sensing circuit, wherein:
Described microprocessor is in order to computing digital signal and the action of control relay group, includes one in order to handle the arithmetic element of calculating with control routine, with the mnemon in order to stored routine and storage data;
Described relay group is the input that connects alternating current motor, and is electrically connected microprocessor that described microprocessor is a control relay group change action, and the forward, reverse or stop of relay group control alternating current motor end;
Described current-sensing circuit, comprise a current sensor, a rectifier and a proportional plus integral plus derivative controller, the input of described current sensor connects the outlet line of alternating current motor, and the output of current sensor is the input that is electrically connected rectifier, the output of described rectifier is the input that is electrically connected proportional plus integral plus derivative controller, and the output of described proportional plus integral plus derivative controller is to be electrically connected above-mentioned microprocessor.
Rely on above-mentioned technological means, the utility model can improve existing disappearance and have the advantage that improves fail safe and improve installation effectiveness.
Description of drawings:
Shown in Figure 1 is the stereoscopic figure of prior art;
Shown in Figure 2 is the partial enlarged drawing of the pressure sensor of prior art;
Shown in Figure 3 is stereoscopic figure of the present utility model; And
Shown in Figure 4 is calcspar of the present utility model.
Description of reference numerals: 1-rolling door; The 2-pressure sensor; The 3-microprocessor; The 31-arithmetic element; 32-mnemon; The 321-parameter; 4-relay group; The 5-control interface; The 6-current-sensing circuit; The 61-current sensor; The 62-rectifier; The 63-proportional plus integral plus derivative controller; 80-alternating current motor current sense formula control system; The 900-alternating current motor; The 901-rolling door.
Embodiment
Below in conjunction with accompanying drawing, to this novel above-mentionedly is described in more detail with other technical characterictic and advantage.
Please cooperate and consult Fig. 3 and shown in Figure 4, alternating current motor current sense formula control system 80 of the present utility model, be to be applied in alternating current motor 900, described alternating current motor 900 is 901 actions of control rolling door, includes a microprocessor (MCU) 3, a relay group 4, a control interface 5 and a current-sensing circuit 6.
Above-mentioned microprocessor 3, be in order to computing digital signal and 4 actions of control relay group, include one in order to handle the arithmetic element of calculating with control routine 31, with the mnemon 32 in order to stored routine and storage data, described mnemon 32 is pre-loaded parameters 321, and described parameter 321 is to be provided with arithmetic element 31 as the usefulness of judging 4 actions of relay group.
Above-mentioned relay group 4, it is the input that connects alternating current motor 900, and be electrically connected microprocessor 3, described microprocessor 3 is control relay group 4 change actions, and relay group 4 is to rely on change action control power supply to flow through alternating current motor 900 circuits, and then 900 forward, reverse or stop of control alternating current motor only, and alternating current motor 900 is to drive rolling door 901 to rise, descend or stop.
Above-mentioned control interface 5 is electrically connected microprocessor 3, is to give microprocessor 3 computings in order to import a controlling signal, and is controlled rolling door 901 actions.
Above-mentioned current-sensing circuit 6, comprise a current sensor 61, one rectifier 62 and a proportional plus integral plus derivative controller (PID Controller) 63, the input of described current sensor 61 is outlet lines of isolated connection alternating current motor 900, electric current in order to detecting alternating current motor 900 outputs, and the output of current sensor 61 is the inputs that are electrically connected rectifier 62, described rectifier 62 is in order to convert the current sensor 61 measured AC signal that obtain to dc signal, and the output of rectifier 62 is the inputs that are electrically connected proportional plus integral plus derivative controller 63, described proportional plus integral plus derivative controller 63 is to convert a digital signal in order to the dc signal with rectifier 62, and the output of proportional plus integral plus derivative controller 63 is to be electrically connected above-mentioned microprocessor 3, and sends digital signal 3 computings of to above-mentioned microprocessor.In addition, current sensor 61 is a current transformer (CT); Certainly, also can be a Hall current sensor (Hall CT sensor), or other is equal to the assembly of character.
User mode relevant for above-mentioned member please continue ginseng Fig. 3 and shown in Figure 4, alternating current motor current sense formula control system 80 of the present utility model mainly is to utilize the user to operate control interface 5, make control interface 5 inputs one controlling signal give microprocessor 3 computings, described microprocessor 3 is control relay group 4 change actions, and relay group 4 is to rely on change action control power supply to flow through alternating current motor 900 circuits, and then 900 forward, reverse or stop of control alternating current motor only, and alternating current motor 900 is to drive rolling door 901 to rise, descend or stop.
When foreign matter is blocked in rolling door 901 declines, the electric current of alternating current motor 900 will upwards raise; Then, the electric current that current-sensing circuit 6 detects alternating current motor 900 outputs raises, and obtain a digital signal, and send digital signal to microprocessor 3 computings, the arithmetic element 31 of described microprocessor 3 with the parameter 321 in the mnemon 32 with after digital signal is compared, when the paranormal numerical value of digital signal, arithmetic element 31 is with control relay group 4 change actions, alternating current motor 900 is stopped or reversing, and then control rolling door 901 stops or the rising that rebounds, reach the raising fail safe, and have the advantage that improves installation effectiveness simultaneously.
More than explanation is novel just illustrative for this; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited; can make many modifications; change, or equivalence, but all will fall in the protection range of the present utility model.

Claims (4)

1. an alternating current motor current sense formula control system is to be applied on the alternating current motor, and described alternating current motor is the action of control rolling door, and it is characterized in that: it includes a microprocessor, a relay group, a control interface and a current-sensing circuit, wherein:
Described microprocessor is in order to computing digital signal and the action of control relay group, includes one in order to handle the arithmetic element of calculating with control routine, with the mnemon in order to stored routine and storage data;
Described relay group is the input that connects alternating current motor, and is electrically connected microprocessor that described microprocessor is a control relay group change action, and the forward, reverse or stop of relay group control alternating current motor end;
Described current-sensing circuit, comprise a current sensor, a rectifier and a proportional plus integral plus derivative controller, the input of described current sensor connects the outlet line of alternating current motor, and the output of current sensor is the input that is electrically connected rectifier, the output of described rectifier is the input that is electrically connected proportional plus integral plus derivative controller, and the output of described proportional plus integral plus derivative controller is to be electrically connected above-mentioned microprocessor.
2. alternating current motor current sense formula control system according to claim 1 is characterized in that: the pre-loaded parameter of described mnemon, described parameter are to be provided with arithmetic element in order to judge the action of relay group.
3. alternating current motor current sense formula control system according to claim 1, it is characterized in that: described current sensor is a current transformer.
4. alternating current motor current sense formula control system according to claim 1, it is characterized in that: described current sensor is a Hall current sensor.
CNU200720143253XU 2007-04-25 2007-04-25 Alternating current motor electric current detecting type control system Expired - Fee Related CN201075668Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU200720143253XU CN201075668Y (en) 2007-04-25 2007-04-25 Alternating current motor electric current detecting type control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU200720143253XU CN201075668Y (en) 2007-04-25 2007-04-25 Alternating current motor electric current detecting type control system

Publications (1)

Publication Number Publication Date
CN201075668Y true CN201075668Y (en) 2008-06-18

Family

ID=39520925

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU200720143253XU Expired - Fee Related CN201075668Y (en) 2007-04-25 2007-04-25 Alternating current motor electric current detecting type control system

Country Status (1)

Country Link
CN (1) CN201075668Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108756707A (en) * 2018-06-05 2018-11-06 福建安麟智能科技股份有限公司 A kind of rolling screen door adapting to grease variation is hampered control method and control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108756707A (en) * 2018-06-05 2018-11-06 福建安麟智能科技股份有限公司 A kind of rolling screen door adapting to grease variation is hampered control method and control system

Similar Documents

Publication Publication Date Title
CN102374613B (en) Method for controlling power-on of air conditioner through human body induction
CN204778102U (en) Can prevent elevator of dry running
CN201190075Y (en) Drive control system of escalator or moving sidewalk
CN201075668Y (en) Alternating current motor electric current detecting type control system
CN201083988Y (en) Dc motor electrical current detecting type control system
CN201230227Y (en) AC/DC bi-purpose high pressure cleaning machine
CN204984222U (en) Roller shutter door machine control circuit with chance hinders reversal of automatic control motor
CN204591741U (en) Electric heater alarm circuit for failure of fan used for rail vehicle
CN207568820U (en) A kind of air compressor machine of tape timer
CN203730275U (en) Direct current accident oil pump control device
CN201556110U (en) Intelligent voltage stabilizer controller
CN204206054U (en) A kind of frequency-changing control system of work position rotation table
CN201075666Y (en) Anti-overheat detecting apparatus of alternating current motor
CN203586388U (en) Super-energy-saving safe intelligent heating controller
CN201417858Y (en) Intelligent electrical socket outlet
CN201549791U (en) Power distribution cabinet temperature regulating device
CN201066484Y (en) Energy-saving peripheral
CN203243279U (en) Intelligent energy-saving motor with cooling circulation system
CN202009224U (en) Protective device for air-conditioning stepping motor
CN201369013Y (en) Portable power supply of host of portable computer
CN204719444U (en) A kind of water pump protection control switch
CN203961590U (en) Vehicle window one key lifting gear
CN104237807A (en) Inverter system for monitoring state of storage battery and monitoring method
CN204696660U (en) A kind of Motor Driven Elevating Calabash contactor adhesion protective device
CN108241314A (en) A kind of no UPS realizes the circuit of one key switch machine of industrial equipment

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080618

Termination date: 20130425