TW201445869A - Intelligent motor controller, control method, tag-on circuit and remote control thereof - Google Patents

Abstract

The present invention relates to an intelligent motor controller, a control method, a tag-on circuit and remote control thereof. The control method includes the steps of: providing a data storage device; providing a starting operation signal; providing a ending operation signal; determining whether operation data stored in the data storage device are enough when the starting operation signal is received; recording a variation of load of motor with respect to operation time when the operation data stored in the data storage device are not enough; serving the variation of load of motor with respect to operation time as the operation data and storing the operation data into the data storage device; and regulating the supplying voltage to the motor according to the driving time and the variation of load of motor with respect to operation time in the operation data when there is enough operation data storing in the data storage device.

Description

Smart motor controller, control method, plug-in circuit and its motor remote controller

The present invention relates to a technique for motor control, and more particularly to a smart motor controller, control method, plug-in circuit, and remote controller therefor.

The 10,000-horsepower machine is a closed batch mixer, sometimes called the Banbury mixer, also known as the mixer. This machine was designed by Banbury and launched by the American company Farrel. The structure is as shown in Fig. 1. Figure 1 is a block diagram of a prior art mega-horse machine. Referring to FIG. 1, the structure of the 10,000 horsepower machine includes a cylinder 101, a pressurizing hammer 102, a feed port 103, a kneading chamber 104, a discharge door 105, and a door latch 106. The plastic is added by the feed port 103, and the plastic mixed by the ribbon mixer or the Hansel mixer enters the 10,000-horse mixing chamber 104, and the pressurizing hammer 102 presses it. The mixing chamber 104 has two ridges. The rotor rotates in the opposite direction. High heat is generated due to the strong shearing effect between the rotor and the rotor and the chamber wall, which causes the plastic to have a kneading effect. Mixed The temperature of the training room must be properly controlled to prevent excessive gelation of the plastic. The control method is mostly to hollow the chamber wall or rotor to pass cold water or steam. The glued plastic can be discharged from the bottom discharge. The glued plastic can be discharged from the bottom discharge door 105.

The application of Wanmaili machine (internal mixer) mainly includes EVA, TPR, rubber sole, beach shoes, rubber runner, tire, sponge, inner tube, rubber band, rubber tube, conveyor belt, eraser, o-ring, oil seal, Sports equipment, balls, stoppers, anti-vibration rubber, rubber magnets, masterbatch pigments, inks, cork stoppers, electrical appliances and various types of steam and locomotive rubber products, etc., are widely used. However, this 10,000 horsepower machine (internal mixer) generates extremely high power consumption when it is in operation. In particular, the machine must operate in a high horsepower state, and the starting current, no-load or light-load power consumption is very impressive.

In addition, for a cooling system, such as cold air, it is the largest source of power consumption for the home for the average user. For the average family, you may choose to purchase inverter air conditioners directly to save energy. But for corporate or corporate buildings, air conditioning has long been built and configured. Although the applicant applied for an external circuit for such a non-inverter air conditioner in 2007 to improve power consumption, there are still some shortcomings.

General air-conditioning manufacturers, in the manufacture of air-conditioning, will additionally purchase inverter modules from inverter module manufacturers. However, the pure frequency conversion module is configured to be cold air and cannot be operated. Therefore, it will purchase the Program Logic Control (PLC) program from the external software manufacturer to operate. However, the inverter module and the programmable logic control program must be Pay the price twice, and the software manufacturer must go through the fine-tuning and testing by the software programmable control program. This situation often leads to delays in product shipment time.

It is an object of the present invention to provide a smart motor controller that utilizes a method of detecting its operating cycle to appropriately adjust the voltage to achieve power saving.

Another object of the present invention is to provide a smart motor control method that saves energy and improves production yield by recording an operation mode to provide an appropriate driving voltage.

Another object of the present invention is to provide an external circuit of a refrigeration system, which integrates a firmware and an external frequency conversion module, and directly sets a control mode of the firmware by a simple setting interface.

Another object of the present invention is to provide a motor remote control that allows an installer to set operational limits.

In view of this, the present invention provides a smart motor controller for driving an electric motor, the smart motor controller including a motor drive circuit, a start/stop operation detector, a load detector, and a drive voltage regulator . The motor drive circuit is coupled to the motor for driving the motor. The start/stop operation detector is configured to determine the operation cycle of the motor, and when the motor starts to operate, output a signal of a mutual action, and when the motor stops operating, a stop signal is output. The load detector is coupled to the above start/stop operation detector to And the motor drive circuit, when the load detector receives the start signal, the load detector starts detecting and recording a change in the magnitude and time of a load, and when the load detector receives the stop signal, the load detector stops. Record the change in the size and time of the above load, and store the change in the size and time of the above load. The driving voltage regulator is coupled to the load detector and the motor driving circuit. When the load detector stores the data of the magnitude and time of the load at least once, the driving voltage regulator adjusts the voltage for driving the motor according to the change in the magnitude and time of the load at least once.

The invention further provides a smart motor control method for controlling an electric motor, the smart motor control method comprising the steps of: providing a data storage device; providing an operation start mechanism; providing an operation stop mechanism; In the mechanism, it is judged whether the data storage device stores sufficient operational data; when the data storage device does not store the operational data, the data of the workload and time of the driving motor is recorded; and the data of the workload and time of the motor is operated as The data is stored in the data storage device; and when the data storage device stores sufficient operational data, the voltage supplied to the motor is adjusted according to the driving time according to the change data of the working load and time of the motor in the operating data.

According to the smart motor controller and the smart motor control method according to the preferred embodiment of the present invention, when the load detector does not store the data of the magnitude and time of the load, the driving voltage regulator enters the standby mode. The drive circuit uses the normal drive The voltage and current are not changed, and the load is driven so that the load detector can record the change in the magnitude and time of the load.

According to a smart motor controller and a smart motor control method according to a preferred embodiment of the present invention, the motor drive circuit is a step-by-step rectifier drive circuit and is suitable for driving a low frequency high power motor of 10 kHz or less. In another embodiment, the motor drive circuit is an insulated gate bipolar transistor drive circuit suitable for driving a high frequency high power motor of 10 KHz or more.

According to a smart motor controller and a smart motor control method according to a preferred embodiment of the present invention, the smart motor controller further includes a microprocessor coupled to the load detector, the start/stop operation detector, Drive voltage regulator for integrating control of load detector, start/stop operation detector, and drive voltage regulator to provide the following system functions: soft start, soft stop, low voltage protection, over voltage protection, phase loss protection , over current overload protection, manual external bypass, automatic external bypass.

The invention further provides an external circuit, which is externally mounted on an electric motor, wherein the electric motor is controlled by a motor driving circuit, and the hanging circuit comprises a frequency conversion control module, a control firmware, an environment detector, a display device, A button set and a microprocessor. The frequency conversion control module is used to control the operating frequency of the motor drive circuit. The firmware is controlled to provide a control mechanism. The environmental detector is configured to detect an environmental state to output an environmental detection signal. The display device is used to display a message. The microprocessor is coupled to the frequency conversion module, the environment detector, the display device, the button group, and Control the firmware. After the plug-in circuit starts to operate, the microprocessor receives the environmental detection signal output by the environment detector, compares the control mechanism in the control firmware, and controls the operation of the frequency conversion control module. When the user presses a specific combination button of the button group, the microprocessor controls the plug-in circuit to enter a setting mode. When the plug-in circuit enters the setting mode, the microprocessor controls the display device to display a parameter setting information, allows the user to perform parameter setting, and updates the control mechanism inside the control firmware.

According to the external circuit of the preferred embodiment of the present invention, the display device is a seven-segment display. Further, according to another embodiment, the above button group is constituted by a plurality of button switches.

According to the external circuit of the preferred embodiment of the present invention, the external circuit further includes a display port coupled to the microprocessor for electrically connecting to an external display. When entering the setting mode and the display port is electrically connected to the external display, the external display displays a relatively complete setting interface. In another embodiment, the plug-in circuit further includes a keyboard connection interface coupled to the microprocessor for electrically connecting to an external keyboard. When entering the setting mode, and the display connection is electrically connected to the external display, and the keyboard connection interface is electrically connected to the external keyboard, the external display displays a relatively complete setting interface, and the user can perform parameter setting through an external keyboard. And update the control mechanism inside the control firmware. In a preferred embodiment, the display port is one of a D-SUB port, a DVI port, and an HDMI port. In addition, in a preferred embodiment, the keyboard connection interface is a USB connection port, a PS2 port, and a DIN (Deutsche Industrinorm) standard connector. One.

The invention further provides a motor remote controller for controlling the operation of a motor, the motor remote controller comprising a signal transmitting circuit, a plurality of buttons, a control circuit and a jumper port. The signal transmitting circuit is configured to transmit a control signal. The control circuit is coupled to the signal transmitting circuit and the plurality of buttons for controlling a built-in command of the control signal emitted by the signal transmitting circuit according to the instruction corresponding to the button pressed by the plurality of buttons. The jumper port includes a first node and a second node, wherein the first node and the second node are electrically disconnected, wherein the first node is coupled to a first specific control pin of the control circuit, and the second The node is coupled to the second specific control pin of the control circuit. The plurality of buttons includes at least a first direction button for controlling the motor to operate in the first direction and a second direction button for controlling the motor to operate in the second direction.

When the first node is short-circuited with the second node, the control circuit detects that the first specific control pin is electrically connected to the second specific control pin, and the control circuit is set to a setting mode. When entering the setting mode, if the first direction button is continuously pressed, the motor continues to run in the first direction until the first direction button is released. At this time, the motor stops running, and the stop point of the motor is set to one. The first threshold. When entering the setting mode, if the second direction button is continuously pressed, the motor continues to run in the second direction until the second direction button is released. At this time, the motor stops running, and the stop point of the motor is set to one. The second threshold. When the control circuit is not in the setting mode, and the first direction button is continued Pressed, the motor continues to run in the first direction until the first threshold is reached. When the control circuit is not in the set mode and the second direction button is continuously depressed, the motor continues to run in the second direction until the second threshold is reached.

According to a preferred embodiment of the present invention, in the motor remote control, initially, the control circuit internally stores an initial first threshold and an initial second threshold. Additionally, in the preferred embodiment, the motor remote control is used to control the operation of an electric motor of the electric blind. And when the jumper port is set to be short-circuited, the installer can conveniently set the opening maximum value and the closing maximum value of the electric shutter, wherein the first threshold corresponds to the opening maximum value of the electric shutter, and the second threshold corresponds to the maximum closing of the electric shutter. value.

The spirit of the present invention is that when the motor of the production line is initially operated, no interference is performed at all, only the operational state is recorded, and the operational state is analyzed. When the operating state is recorded and the power saving function is activated, the driving voltage is appropriately adjusted in accordance with the previously recorded operating state to save energy. Since the operating state of the electric motor of the production line is recorded, as long as the spirit of the present invention is used, the dilemma of insufficient power supply when 100% electric power is required does not occur. Therefore, the present invention can increase the yield of production.

In addition, the plug-in circuit of the present invention integrates the firmware and the external frequency conversion module, and the manufacturer of the motor does not need to pay extra software software to write the programmable logic control software, and does not need to find a software engineer to perform fine adjustment during product development. Due to the plug-in power of the present invention The road has a simple setting interface. In addition to directly setting the control mode of the firmware, the internal parameters of the firmware can also be set by using this simple interface.

Furthermore, the motor remote controller of the present invention has a built-in jumper port, and when the jumper port is short-circuited, it enters the factory setting mode. This factory setting mode can be used to set the operating limit of the motor. This purpose is mainly for the builder who installs the motor to set the operating limit after the installation is completed. Avoid the damage caused by the end user's disorder control, and also increase the safety of the motor operation.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

101‧‧‧ cylinder

102‧‧‧pressure hammer

103‧‧‧ Feed inlet

104‧‧‧mixing room

105‧‧‧ Discharge door

106‧‧‧Latch

201‧‧‧Motor drive circuit

202‧‧‧Start/stop operation detector

203‧‧‧Load detector

204‧‧‧Drive voltage regulator

205‧‧‧Microprocessor

206‧‧‧Electric motor

EN‧‧‧ start signal

DN‧‧‧ stop signal

S301‧‧‧ begins

S302‧‧‧ provides a data storage device

S303‧‧‧ provides an operational start-up mechanism

S304‧‧‧ provides an operational stop mechanism

S305‧‧‧Consult whether to receive the operational start-up mechanism steps

S306‧‧‧ When receiving the operational start-up mechanism, determine whether the data storage device has sufficient operational data to be stored

S307‧‧‧When the data storage device does not store operational data, the record drive Dynamic motor load and time changes

S308‧‧‧Storage of the workload and time of the motor as operational data in the data storage device

S309‧‧‧ When the data storage device stores sufficient operational data, adjust the voltage supplied to the motor according to the change of the working load and time of the motor and the driving time according to the operating data.

401‧‧‧Frequency control module

402‧‧‧Control firmware

403‧‧‧Environmental Detector

404‧‧‧ display device

405‧‧‧ button group

406‧‧‧Microprocessor

407‧‧‧Motor drive circuit

408‧‧‧Electric motor

501, 502 and 503‧‧‧7-segment displays

504‧‧‧Programming button

505‧‧‧Add button

506‧‧‧Reduction button

507‧‧‧ input button

601‧‧‧Display connector埠

602‧‧‧ keyboard connection interface

603‧‧‧External display

604, 702‧‧‧ external keyboard

701‧‧‧LCD display

S801‧‧‧Enter the main program

S802‧‧‧load full speed operation

S803‧‧‧Entering the constant temperature mode

S804‧‧‧ Determine whether the load temperature value is greater than the above-mentioned setting parameter SP30, and determine whether the constant temperature blur interval is greater than the above-mentioned setting parameter SP29

S805‧‧‧Acceleration

S806‧‧‧Deceleration

S807‧‧‧Enter system subprogram

S901‧‧‧Enter the main program

S902‧‧‧Is it judged whether the amount of refrigerant is sufficient?

S903‧‧‧Compressor running at full speed

S904‧‧‧ mode selection

S905‧‧‧Into the air-conditioning mode

S906‧‧‧ Is the high and low pressure difference greater than the above parameter SP34?

S907‧‧‧ Is the low voltage greater than SP32?

S908‧‧‧Acceleration

S909‧‧‧Deceleration

S910‧‧‧Enter system subprogram

S911‧‧‧Enter heating mode

S912‧‧‧ Is the high and low pressure difference greater than the above parameter SP34?

S913‧‧‧ Is the high voltage greater than SP35?

S914‧‧‧Acceleration

S915‧‧‧Deceleration

S1001‧‧‧Enter the main program

S1002‧‧‧Load full speed operation

S1003‧‧‧Entering the differential temperature mode

S1004‧‧‧Review whether the differential temperature value is greater than the above parameter SP36

S1005‧‧‧Acceleration

S1006‧‧‧Deceleration

S1007‧‧‧Enter system subprogram

S1101‧‧‧Enter the main program

S1102‧‧‧Check if the pressure is sufficient

S1103‧‧‧Load full speed operation

S1104‧‧‧ enters constant pressure mode

S1105‧‧‧Review whether the pressure value is greater than the above parameter SP32

S1106‧‧‧Determine whether the pressure blur interval is greater than the above parameter SP31

S1107‧‧‧Deceleration

S1108‧‧‧Acceleration

S1109‧‧‧Enter system subprogram

1201‧‧‧Signal Transmitting Circuit

1202‧‧‧Multiple buttons

1203‧‧‧Control circuit

1204‧‧‧jumper connection埠

N1‧‧‧ first node

N2‧‧‧ second node

P1‧‧‧ first specific control position

P2‧‧‧ second specific control pin

Figure 1 is a block diagram of a prior art mega-horse machine.

2 is a circuit block diagram of a smart motor controller according to a first embodiment of the present invention.

FIG. 3 is a flow chart showing a smart motor control method according to a second embodiment of the present invention.

4 is a circuit block diagram of an inverter external circuit according to a third embodiment of the present invention.

FIG. 5 is a schematic diagram showing a display device 404 and a button group 405 according to a third embodiment of the present invention.

Figure 6 is a diagram showing the frequency conversion of the third embodiment of the present invention. Circuit block diagram of the external circuit of the device.

FIG. 7 is a schematic diagram showing an external display and an external keyboard according to a third embodiment of the present invention.

FIG. 8 is a flow chart showing the constant temperature control applied to the air-conditioning according to the third embodiment of the present invention.

FIG. 9 is a flow chart showing pressure control applied to the air-conditioning according to the third embodiment of the present invention.

FIG. 10 is a flow chart showing the differential temperature control applied to the air-conditioning according to the third embodiment of the present invention.

Figure 11 is a flow chart showing the control of water constant pressure applied to a water pump according to a third embodiment of the present invention.

FIG. 12 is a circuit block diagram of a motor remote controller according to a fourth embodiment of the present invention.

Certain terms are used throughout the description and following claims to refer to particular elements. Those of ordinary skill in the art should understand that a hardware manufacturer may refer to the same component by a different noun. The scope of this specification and the subsequent patent application do not use the difference of the names as the means for distinguishing the elements, but the difference in function of the elements as the criterion for distinguishing. The term "including" as used throughout the specification and subsequent claims is an open term and should be interpreted as "including but not limited to". In addition, the term "coupled" is used herein to include any direct and indirect electrical connection. Therefore, if a first device coupling is described Connecting to a second device means that the first device can be directly electrically connected to the second device or indirectly electrically connected to the second device through other devices or connection means.

Prior to describing the embodiment, prior art techniques have been used to mount a frequency conversion module on a motor of a 10,000 horsepower machine to achieve power savings. However, the operation of the inverter module is determined by the feedback of the load size (supply current) (FeedBack). However, the time from the feedback to the actual change of frequency is the time required for the reaction, and the injection molding on the production line often requires the strongest horsepower only for a moment. Therefore, the machine using the inverter module, through experimentation, has saved energy, but it has a 20% defect rate. In order to solve such problems, the applicant has proposed the following embodiments.

First embodiment

2 is a circuit block diagram of a smart motor controller according to a first embodiment of the present invention. Referring to FIG. 2, the smart motor controller includes a motor drive circuit 201, a start/stop operation detector 202, a load detector 203, a drive voltage regulator 204, and a microprocessor 205. To facilitate the description of the spirit of the present invention, the illustration further illustrates an electric motor 206. The microprocessor 205 is coupled to the load detector 203, the start/stop operation detector 202, and the driving voltage regulator 204 for integrating the operations of the control load detector 203, the start/stop operation detector 202, and the driving voltage regulator 204. The motor drive circuit 201 is coupled to the motor 206 for driving the motor 206. The start/stop operation detector 202 is configured to determine the operation cycle of the motor 206, and when the motor 206 starts to operate, output a signal of the action EN, When the motor is stopped, a stop signal DN is output.

The load detector 203 is coupled to the start/stop operation detector 202 and the motor drive circuit 201 described above. In the initial operation, at this time, the load detector 203 does not store the change of the magnitude and time of the load. After the load detector 203 receives the start signal En, the drive voltage adjuster 204 enters the standby mode. At this time, the motor drive circuit The 204 uses the normal drive mode to drive the load without changing the voltage and current. The load detector 203 starts detecting and recording the change in the magnitude and time of a load. When the load detector 203 receives the stop signal DN, the load detector 203 stops recording the change in the magnitude and time of the load, and stores the load. The size and time of the change.

The driving voltage regulator 204 is coupled to the load detector 203 and the motor driving circuit 201 described above. When the load detector 203 stores the change in the magnitude and time of the load at least once, the drive voltage adjuster 204 adjusts the magnitude of the voltage used to drive the motor 206 in accordance with the change in the magnitude and time of the load at least once.

It can be seen from the above embodiments that the operation of the electric motors in the general production line is almost the same in the same cycle, and the operation is mainly to ensure the product identity of the products produced. Therefore, the present invention utilizes such characteristics to propose a power saving device for an electric motor on a production line. The state of the machine operation and the state of change of load and time are recorded and stored as electronic data by means of electronic recording. After the data collection is completed, it is convenient to use this data to adjust the voltage supplied to the motor 206 to achieve power saving. Generally, if you use a 220VAC motor.

In the above embodiment, although the size and time of the load are stored at least once, the person skilled in the art should know that the number of times of storage can be changed with the design. The more the number of times of storage, the more accurate. By grasping the load versus time, the voltage adjustment can be more precise.

Further, the motor drive circuit 201 may be different depending on the motor, for example, for driving a low-frequency high-power motor of 10 kHz or less, and the motor drive circuit 201 employs a voltage-controlled rectifier (SCR) drive circuit. For driving a high frequency high power motor of 10 KHZ or more, the motor drive circuit 201 employs an insulated gate bipolar transistor (IGBT) drive circuit. Moreover, since the present embodiment is configured with a microprocessor 205, the microprocessor 205 can integrate the operations of the load detector 203, the start/stop operation detector 202, the driving voltage regulator 204, and the motor driving circuit 201. Provide the following system features:

First, the soft start function: During the soft start process, the 10,000 horsepower will not generate an instantaneous voltage drop caused by the instantaneous starting current, which can extend the service life of the device.

Second, the soft stop function: Some application motors need to be softly stopped to avoid the sudden stop of the impulse, the pumping motor can also avoid the problem of water hammer and valve damage caused by the rapid stop of the motor.

Third, the kick start function: the motor with a large inertia may not supply enough torque to start the motor. A relatively high voltage can provide sufficient starting torque to start the motor. After the kick starts, it enters the soft start and continues to complete the start.

Fourth, the lack of phase protection function: the system will automatically stop the motor when the phase is missing, to avoid greater damage to the motor.

5. Overload protection function: When overloaded, the system will automatically stop output to stop the motor running and effectively protect the original motor equipment.

6. High voltage overload protection function: When the voltage is too high, the system will automatically stop output to stop the motor. This allows the system and the original motor equipment to have excessive voltage protection. According to actual needs, the system can set whether the motor will start automatically again when the voltage returns to the normal range.

Seven, low voltage protection function: When the voltage is too low, the system can be set according to actual needs:

a. Automatically switch to full voltage and no power saving state to avoid voltage being too low in the power saving state.

b. Stop the motor.

c. The system can automatically start the motor again when the voltage returns to the normal range.

Eight, external bypass function (manual or automatic): This system can be added to the bypass system if necessary. If the system is only used as a soft starter, it can be set to automatically jump to the external bypass system after the soft start is completed, so that the system stops operating to extend its life.

In addition, through the experiment, the applicant mainly used the Wanmaili plastic raw material mixer (specification: 3Φ/50Hz/380V/200HP/hours of operation 24 hours a day) in the plastic floor factory in Dongguan, Guangdong Province, China. It is mixed into the required raw materials in proportion to manufacture plastic floor processing. In order to meet the needs of a large number of processes, Wanma Li is 24 small When running, the mixer must be driven by the motor. The SES-VC3538-400 system is installed for the drive motor, which can optimize the output power according to the actual load size, optimize the output power required by the equipment, and improve the starting current. Save situations where equipment consumes a lot of power.

In the mains mode meter data record, the Wanmauli mixer equipment consumes an average of 125kwh when operating, while when Wanma Li is operating in the power-saving mode, the average consumption is 99.6kwh. In the two-phase comparison, the SES-VC3538-400 drives the motor of the 10,000-horsepower mixer to operate at the optimum amount of output power, and the power saving efficiency of the embodiment of the present invention is as high as 20.3%.

In addition, although the above embodiment is exemplified by a 10,000-horsepower mixer, it should be understood by those skilled in the art that the present invention is still applicable to a refrigerating and air-conditioning compressor, a wood sawing machine, a hydraulic pump, a water pump, Conveyor belts, printing presses, roller machines, crushers, grinders, air compressors, escalators, automatic doors, plastic injection molding machines, etc. Therefore, the invention is not limited thereto. In addition, the smart motor controller of the present invention has the following advantages over the prior art method of using the frequency converter to save power:

1. Installation-free sensing element: The frequency converter requires additional mounting of sensing elements such as pressure, temperature, humidity, etc., and the first embodiment of the invention does not require any sensing elements.

2. No change in equipment speed: Changing the speed of the equipment often causes a drop in the yield of the production line, resulting in product damage, and the first embodiment of the present invention does not require changing the rotational speed.

3. No control program required: The inverter needs to write an additional programmable logic control program (PLC), which is not required in the first embodiment of the present invention.

4. The price is cheap.

5. Wide range of applications: The application range of the inverter is limited.

Second embodiment

The above embodiments can be summarized into a smart motor control method. Please refer to FIG. 3, which is a flow chart of a smart motor control method according to a second embodiment of the present invention. As shown in Figure 3, the smart motor control method includes the following steps:

Step S301: Start.

Step S302: providing a data storage device.

Step S303: providing a function starting mechanism.

Step S304: Provide an operation stop mechanism.

Step S305: It is judged whether a operation start mechanism (for example, the above EN signal EN) is received. If the determination is YES, the process proceeds to the next step S306. If the determination is No, the process proceeds to step S305.

Step S306: When receiving the operation start mechanism, determine whether the data storage device stores sufficient operation data. If not, step S307 is performed, and if so, step S309 is performed.

Step S307: When the data storage device does not store the operation data, record the change data of the workload and time of the drive motor. At this time, the motor is normally driven without changing the voltage and current, and the load is applied. Drive to record data on the size and time of the load.

Step S308: storing the data of the workload and time of the motor as operation data in the data storage device. Thereafter, the process returns to step S305 and continues to operate.

Step S309: When the data storage device stores sufficient operation data, the voltage supplied to the motor is adjusted according to the change data of the workload and time of the motor in the operation data and according to the driving time. Thereafter, the process returns to step S305 and continues to operate.

Third embodiment

The first embodiment and the second embodiment described above provide a power saving solution for use in industrial and production lines. In this third embodiment, another frequency conversion solution that saves power on the frequency converter and saves production and development time is provided. 4 is a circuit block diagram of an inverter external circuit according to a third embodiment of the present invention. Referring to FIG. 4, the inverter external circuit includes a frequency conversion control module 401, a control firmware 402, an environment detector 403, a display device 404, a button group 405, and a microprocessor 406. In order to facilitate the description of the present invention, a motor drive circuit 407 and a motor 408 are additionally illustrated in FIG. The motor drive circuit 407 is used to drive the motor 408. The inverter control module 401 is used to control the operating frequency of the motor drive circuit 407. The control firmware 402 is a control mechanism for providing the variable frequency control module 401. The environment detector 403 is configured to detect an environmental state to output an environmental detection signal SE. The display device 404 is configured to display a message. The microprocessor 406 is coupled to the frequency conversion control module 401, the environment detector 403, the display device 404, the button group 405, and the control toughness. Body 402.

Further, in order to explain the spirit of the present invention, it is assumed that the motor is a compressor of a refrigerating air conditioner. When there is no additional circuit, the operation of the motor generally operates in a fixed frequency manner. After the plug-in circuit starts to operate, the microprocessor 406 receives the environment detection signal SE output by the environment detector 403, and controls the operation of the variable frequency control module 401 by comparing the control mechanism in the firmware 402. The environmental detector 403 can be a temperature detector or a compressor internal pressure detector, or a temperature and humidity pressure mixing detector. For the sake of simplicity, only temperature detection is taken as an example. For example, the user sets the temperature at 25 degrees. When the temperature drops to 23 degrees, the inverter control module 401 controls the motor drive circuit 407 to start the frequency reduction, and the frequency control module 401 controls the motor drive as the temperature decreases. Circuit 407 has its output frequency followed by a drop. This is the previous control mode and will not be described here.

However, when the product is in the development stage, the inverter control module 401 has no so-called control mechanism except the basic functions of frequency conversion. It must be written by the software developer to write its programmable logic control program, but the air-conditioning brand manufacturers must constantly Interacting tests with software engineers, resulting in delayed shipments. However, in this third embodiment, the control firmware 402 is additionally added. In other words, the manufacturer has no need to find a vendor who writes a programmable logic control program to help write the firmware. In addition, the present embodiment also has a button set 405 and a display device 404. The user, for example, a developer, can control the microprocessor 406 to enter a factory setting mode through a button, such as a specific combination button. When the plug-in circuit enters the factory setting mode, the microprocessor 406 controls the display device to display a parameter The number setting information allows the developer to make parameter settings and update the control mechanism inside the control firmware 402.

FIG. 5 is a schematic diagram showing a display device 404 and a button group 405 according to a third embodiment of the present invention. Referring to FIG. 5, the display device 404 of this embodiment is, for example, three seven-segment displays 501, 502, and 503, and the button group 405 of this embodiment can be programmed by the button 504, the add button 505, the decrease button 506, and the input. Button 507 is formed. When the above three seven-segment displays 501, 502, and 503 are lit, it indicates that the inverter is powered, but not necessarily operated. The three seven-segment displays 501, 502, and 503 can display the operation mode, the running value, the error message, and the setting parameters, and have three screen transitions.

The programming button 504 can select a panel to display parameter values such as an operation mode, a set value, a reaction time blur area, and a start time. The button 505 and the decrease button 506 are added. The two buttons are used in the data setting operation, and the value is increased/decreased when the set value is set. You can press a button to change a number or a continuous button to change the number gradually. The input button 507 is used to change the data, and the input button 507 has to be pressed so that the data is input into the program.

In general, for refrigerated air conditioners, the error code can be expressed in the following table:

Moreover, the above embodiment is an example of a seven-segment display. Although the seven-segment display is a relatively inexpensive display, it is limited by its display limitation, and cannot display more information, and the developer is more likely to operate incorrectly. In order to solve such a problem, the applicant additionally provides an implementation of another inverter plug-in circuit. For example, please refer to FIG. 6. FIG. 6 is a circuit block diagram of the inverter plug-in circuit according to the third embodiment of the present invention. Please refer to Figure 6, the inverter external circuit includes a variable frequency control module. The group 401, a control firmware 402, an environment detector 403, a display device 404, a button group 405, a microprocessor 406, a display port 601, and a keyboard connection interface 602. In this embodiment, the display port 601 is coupled to the microprocessor 406 for electrically connecting to an external display 603. The keyboard connection interface 602 is coupled to the microprocessor 406 for electrically connecting to an external keyboard 604.

FIG. 7 is a schematic diagram showing an external display and an external keyboard according to a third embodiment of the present invention. Referring to FIG. 7, the external display is, for example, a liquid crystal display 701, which can be used to display a relatively complete setting interface. In this embodiment, a total of eight parameters are displayed, respectively: INV: frequency output percentage, assuming a 30 Hz output, the percentage is 50%

DCV: DC BUS voltage display, assuming input 230VAC, DCV=230×1.414=325VDC

PMT: PIM Module internal temperature display

HST: External heat sink temperature display

DCA: DC current display

U-A: U phase current display

U-V: V phase current display

EER: Energy Efficiency Ratio

In addition, the portion of the external keyboard 702 is still exemplified by four switch buttons. However, if the external keyboard is integrated with the external liquid crystal display, as shown in FIG. 7, the display is connected. The interface 601 and the keyboard connection interface 602 can also be integrated into an integrated connection interface 703.

Similarly, after pressing the programming button of the external keyboard 702, the factory setting mode can be entered, and the user can perform parameter setting through the external keyboard and update the control mechanism inside the control firmware. The following is an excerpt from the parameter settings implemented by the applicant after the improvement:

SP1: Set the frequency rise time (10~3000ms); the built-in value is 20.

SP2: Set the frequency fall time (10~3000ms); set the value 360.

SP3: Set PIM Modult (V23990-P568) temperature protection (85~120 degrees); set value 100.

SP4: Set the external heat sink temperature protection (75~100 degrees); the built-in value is 80.

SP5: Set the starting frequency (0~60Hz); the built-in value is 30.

SP6: Set the V/F slope value (80~250); the built-in value is 85.

SP7: Set DC Bus current protection (10~50A); the internal value is 20.

SP8: Set the external input upper limit voltage; the built-in value is 240VAC.

SP9: Set the external input lower limit voltage; the built-in value is 180VAC.

SP10: V/F preset value (0), adjust the slope value (1), the program runs the preset V/F table, or is set by SP6 to adjust the slope value.

SP11: Set the pressure target value (0.0~10.0BAR).

SP12: Set the pressure blur value (0.0~1.0BAR).

SP13: Abnormal detection deviation value (0.0~30.0%); built-in value 30.

SP14: Abnormal duration (0.5~120.0 seconds); built-in value 80.0.

SP15: The number of abnormal automatic resets (0~10 times); the built-in value is 3.

SP16: Automatic reset time (0~60 seconds; 0 is invalid); built-in value 30.

SP17: sensor scale (1~100BAR); the built-in value is 0.

SP18: The pressure is sufficient to stop the detection duration (0.0~60.0 seconds; 0 is invalid); the built-in value is 60.

SP19: Awakening level (0~30%; 0 is invalid); the built-in value is 20.

SP20: Set Kp value (0~100%)

SP21: Set the Ki value (0~100%)

SP22: Set the Kd value (0~100%)

SP23: Set the PID calculation time (10~10000ms)

SP24: Set constant voltage stability, time to stop Machine (1 open function; 0 this function is invalid)

SP25:0 constant temperature; 1 cold coal constant pressure; 2 water constant pressure; 3 differential temperature; 4 differential pressure; 5 timing;

SP26: Reaction time RST (RESPONSE TIME): Settling time setting value, unit: sec (seconds), 00.0~99.9sec: In any dynamic mechanical system, we will encounter the trouble of change, and any change has certain Time will stabilize and we will allow the user to operate the setting of the settling time. If the stabilization time is longer, the slower the reaction speed of the system, the shorter the reaction speed. In the separate system, there are divided into compressor reaction time and condensing fan reaction time. Range: 0~10; factory setting value 4.

SP27: highest frequency (upper limit 100%)

SP28: The lowest frequency (lower limit 20%) (% of compressor minimum output) is the actual output of the compressor during operation. The range is 0~100%. If the upper limit frequency is set to 60Hz, the full load is 100%, 60Hz, 50%. For 30Hz and so on.

SP29: Temperature BL value (BAND LIMIT): upper and lower limits of the fuzzy area

SP30: Temperature set value, indoor side internal temperature display, displayable and used for internal setting protection. Room temperature is too high Fault display code: >>RT

SP31: Pressure BL value (BAND LIMIT): upper and lower limits of the fuzzy area, unit: psi

SP32: pressure set point, low pressure set point, Unit: psi

The air-conditioning mode is used to detect low pressure, and the compressor is used for stepless speed control based on this pressure and can be used for low-voltage protection. Low-voltage factory setting: 60.

SP33: Stop mode selection: deceleration stop 0; free stop 1

SP34: High and low pressure difference, unit: psi

In order to maintain a stable return oil, there must be a considerable high and low pressure difference in the system to ensure that the compressor is not damaged due to the low differential pressure. The factory setting is 100.

SP35: High pressure setting in psi

The heating mode is dedicated, and the compressor is controlled by the stepless speed according to this pressure. Factory setting 220

SP36: high and low temperature difference

SP37: Temperature SENSOR scale: 1~50°C; built-in value 0

SP38: First hopping setting value, Default 0

SP39: The second hopping setting value, Default 0

SP40: Third-stage frequency hopping set value, Default 0

SP41: upper and lower limits of frequency hopping

SP42: Set whether to execute SP27 function at full speed after 1 hour of execution; do not start 0; start 1

SP43: Execute the set time at full speed. After the completion, return to the running action

SP44: Enter PASSWORD to modify the SP45 address.

SP45: Enter new PASSWORD

SP46: Control board address setting

SP47: Scratchpad Address

SP48: Load case temperature display 80-120 ° C, preset 100 ° C

It can be displayed and used for internal setting protection. In the air-conditioning and heating modes, it can be displayed and used to control the bypass system. High pressure temperature is too high Fault display code:>>PHT

When the system is running, when the load reaches the set value, we design a fuzzy section, that is, the stable zone, which can allow the change of the set value up and down without changing the system frequency, that is, the tighter the working range of the working range, the system speed changes. The more frequent, the higher the accuracy of temperature and pressure control. Generally speaking, if the accuracy of the system is not very high, the range of pressure blur is 2~4. Factory setting: 2.

According to the above firmware setting, the third embodiment of the present invention can have the application of the following table:

In addition, FIG. 8 is a flow chart showing the constant temperature control applied to the air-conditioning according to the third embodiment of the present invention. Please refer to Figure 8. This thermostatic control process includes the following steps:

Step S801: Enter the main program, that is, the built-in program in the firmware.

Step S802: The load is running at full speed.

Step S803: Entering the constant temperature mode.

Step S804: determining whether the load temperature value is greater than the set parameter SP30, and determining whether the constant temperature blur interval is greater than the set parameter SP29. If the determination is YES, the process proceeds to step S805. If the determination is "NO", the process proceeds to step S806.

Step S805: Perform acceleration. The original rotational speed is increased by a set value, and then step S807 is performed.

Step S806: Deceleration is performed. The original rotational speed is reduced by one set value, and then step S807 is performed.

Step S807: Enter the system subroutine. And back Step S803.

FIG. 9 is a flow chart showing pressure control applied to the air-conditioning according to the third embodiment of the present invention. Please refer to Figure 9, this pressure control process includes the following steps:

Step S901: Enter the main program, that is, the built-in program in the firmware.

Step S902: determining whether the amount of refrigerant is sufficient.

Step S903: The compressor is operated at full speed.

Step S904: mode selection. The cool air mode (step S905) or the warm air mode is selected (step S911).

Step S905: Enter the cool air mode.

Step S906: Whether the high and low pressure difference is greater than the above parameter SP34. If the determination is YES, the process proceeds to step S907. If the determination is No, the process proceeds to step S909.

Step S907: Whether the low voltage is greater than SP32. If the determination is YES, the process proceeds to step S908. If the determination is No, the process proceeds to step S909.

Step S908: Perform acceleration. The original rotational speed is increased by a set value, and then step S910 is performed.

Step S909: Deceleration is performed. The original rotational speed is reduced by one set value, and then step S910 is performed.

Step S910: Enter the system subroutine. And it returns to step S904.

Step S911: Entering the heating mode

Step S912: Whether the high and low pressure difference is greater than the above parameter SP34. If the determination is YES, the process proceeds to step S913. If the determination is No, the process proceeds to step S915.

Step S913: Whether the high voltage is greater than SP35. If the determination is "YES", the process proceeds to step S914, and if the determination is "NO", the process proceeds to step S915.

Step S914: Perform acceleration. The original rotational speed is increased by a set value, and then step S910 is performed.

Step S915: Deceleration is performed. The original rotational speed is reduced by one set value, and then step S910 is performed.

FIG. 10 is a flow chart showing the differential temperature control applied to the air-conditioning according to the third embodiment of the present invention. Please refer to Figure 10, this differential temperature control process includes the following steps:

Step S1001: Enter the main program, that is, the built-in program in the firmware.

Step S1002: The load is running at full speed.

Step S1003: Enter the differential temperature mode.

Step S1004: Determine whether the difference temperature value is greater than the parameter SP36. If the determination is YES, step S1005 is executed, and if the determination is "NO", step S1006 is executed.

Step S1005: Perform acceleration. The original rotational speed is increased by a set value, and then step S1007 is performed.

Step S1006: Deceleration is performed. The original rotational speed is reduced by one set value, and then step S1007 is performed.

Step S1007: Enter the system subroutine. And returning to step S1003.

Figure 11 is a flow chart showing the control of water constant pressure applied to a water pump according to a third embodiment of the present invention. Please refer to Figure 11, this water constant pressure control process includes the following steps:

Step S1101: Enter the main program, that is, the built-in program in the firmware.

Step S1102: It is judged whether the pressure is sufficient.

Step S1103: The load is running at full speed.

Step S1104: Enter the constant voltage mode.

Step S1105: It is judged whether the pressure value is greater than the above parameter SP32. If the determination is YES, step S1106 is executed, and if the determination is "NO", step S1107 is executed.

Step S1106: It is judged whether the pressure blur interval is larger than the above parameter SP31. If the determination is YES, step S1108 is executed, and if the determination is "NO", step S1107 is executed.

Step S1107: Deceleration is performed. The original rotational speed is reduced by one set value, and then step S1109 is performed.

Step S1108: Perform acceleration. The original rotational speed is increased by a set value, and then step S1109 is performed.

Step S1109: Enter the system subroutine. And it returns to step S1104.

In the above third embodiment, although the integrated connection interface is adopted, the display port 601 and the keyboard connection interface 602 are included. However, those skilled in the art should be aware that, depending on the design, the display port can be used as one of a D-SUB port, a DVI port, and an HDMI port. In addition, according to different designs, the keyboard connection interface is one of the USB connection port, the PS2 port, and the DIN (Deutsche Industrinorm) standard connector. Therefore, the invention is not limited thereto.

Fourth embodiment

Furthermore, there is a very important application for the application of electric motors, such as electric shutters, electric waterproof gates or electric anti-desk windows. Due to electric blinds, electric waterproof gates or electric anti-desk windows, the internal motor is simple. If the user is inadvertently operated, for example, the child holds the motor remote control with electric blinds, electric waterproof gates or electric anti-desk windows. Continued pressing down will cause the above-mentioned electric blinds, electric waterproof gates or electric anti-desktops to be continuously opened/closed in the same direction, which often causes the electric motor of the above-mentioned electric shutters, electric waterproof gates or electric anti-windows to be damaged. Accordingly, the Applicant has proposed a motor remote control for controlling the operation of the above-described electric motor.

FIG. 12 is a circuit block diagram of a motor remote controller according to a fourth embodiment of the present invention. Referring to FIG. 12, the motor remote controller includes a signal transmitting circuit 1201, a plurality of buttons 1202, a control circuit 1203, and a jumper port 1204. The signal transmitting circuit 1201 is configured to emit a control signal for controlling the motor. The control circuit 1203 is coupled to the signal transmitting circuit 1201 and the plurality of buttons 1202, and is configured to be corresponding to the depressed button according to the plurality of buttons 1202. The instruction of the control signal transmitting circuit 1201 is one of the built-in instructions of the control signal. For example, when the "upper" of the button is depressed, the control power window is opened, and when the "down" button of the button is pressed, the control power window is closed. When the "stop" of the button is depressed, the control power window stops working, and when the "lock" of the button is depressed, the power window is controlled to be locked, and the remote controller or the remote control is not allowed to be controlled until it is unlocked. The signal transmitting circuit may be one of an RF transmitting circuit, an infrared transmitting circuit or an ultrasonic remote control.

The jumper port 1204 includes a first node N1 and a second node N2, wherein the first node N1 and the second node N2 are electrically disconnected, wherein the first node N1 is coupled to a first specific of the control circuit. The control pin P1 is coupled to the second specific control pin P2 of the control circuit. The plurality of buttons 1202 include at least a first direction button (top) and a second direction button (bottom). The first direction button is used to control the motor to run in the first direction, and the second direction button is used to control the motor to run in the second direction.

When the engineer installing the power window is installed, the engineer who installs the power window must also set the maximum limit for opening and closing to avoid damage to the internal motor of the electric blind, electric waterproof gate or electric anti-desk window. occur. Similarly, the above-mentioned electric blinds, electric waterproof gates or electric anti-desk windows are not closed. In this example, in order to facilitate the setting of the engineering personnel, a jumper connection 埠 1204 is additionally added to the motor remote controller. When the engineer needs to perform setting, the jumper is connected to the first node N1 and the second node of the 1204. Node N2 is shorted. The control circuit 1203 detects the first specific control pin The bit P1 is electrically connected to the second specific control pin P2, and the control circuit 1203 is set to the set mode.

When entering the setting mode, if the first direction button is continuously pressed, the motor continues to run in the first direction until the first direction button is released, at this time, the motor stops running, and the motor stop point is set to A first threshold. If the second direction button is continuously depressed, the motor continues to run in the second direction until the second direction button is released, at which time the motor is stopped and the motor stop point is set to a second threshold. In this way, the engineer completed the setting of the electric motor for the above electric blind, electric waterproof gate or electric anti-desk window. The engineer can remove the jumper connected to the first node N1 and the second node N2. Return the above motor remote control to the normal mode.

When the control circuit is in the normal mode, and the first direction button is continuously depressed, the motor continues to run in the first direction. When the first threshold is reached, the motor stops. Similarly, the second direction button is continuously depressed, the motor continues to run in the second direction, and when the second threshold is reached, the motor stops. In addition, when the electric blind, the electric waterproof gate or the electric anti-desktop are shipped from the factory, the initial first threshold and the initial second threshold may be set first. After the installation is completed, the engineers are prevented from setting up to avoid damage to the electric shutters, electric waterproof gates or electric anti-desk windows caused by the end user during use.

As described above, the spirit of the present invention is that when the motor of the production line is initially operated, no interference is performed at all, only the operation state is recorded, and the operation state is analyzed. When the operating status is recorded, and After the power-saving function is activated, the drive voltage is appropriately adjusted according to the previously recorded operating state to save energy. Since the operating state of the electric motor of the production line is recorded, as long as the spirit of the present invention is used, the dilemma of insufficient power supply when 100% electric power is required does not occur. Therefore, the present invention can increase the yield of production.

In addition, the plug-in circuit of the present invention integrates the firmware and the external frequency conversion module, and the manufacturer of the motor does not need to pay extra software software to write the programmable logic control software, and does not need to find a software engineer to perform fine adjustment during product development. Since the plug-in circuit of the present invention has a simple setting interface, in addition to directly setting the control mode of the firmware, the internal parameters of the firmware can also be set by using the simple interface.

Furthermore, the motor remote controller of the present invention has a built-in jumper port, and when the jumper port is short-circuited, it enters the factory setting mode. This factory setting mode can be used to set the operating limit of the motor. This purpose is mainly for the builder who installs the motor to set the operating limit after the installation is completed. Avoid the damage caused by the end user's disorder control, and also increase the safety of the motor operation.

The specific embodiments of the present invention are intended to be illustrative only and not to limit the invention to the above embodiments, without departing from the spirit of the invention and the following claims. The scope of the invention and the various changes made are within the scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

201‧‧‧Motor drive circuit

202‧‧‧Start/stop operation detector

203‧‧‧Load detector

204‧‧‧Drive voltage regulator

205‧‧‧Microprocessor

206‧‧‧Electric motor

EN‧‧‧ start signal

DN‧‧‧ stop signal

Claims (5)

A smart motor control method for controlling an electric motor, the smart motor control method comprising: providing a data storage device; providing an operation start mechanism; providing an operation stop mechanism; and when receiving the operation start mechanism, determining the Whether the data storage device stores sufficient operational data; when the data storage device does not store the operational data, records the change of the workload and time of driving the motor; and the data of the workload and time of the motor is used as the The operational data is stored in the data storage device; and when the data storage device stores sufficient operational data, according to the change in the workload and time of the motor in the operational data, the supply to the motor is adjusted according to the driving time. The size of the voltage. The intelligent motor control method as described in claim 1, wherein when the data storage device does not store the operation data, the method further comprises: driving the motor normally, not changing voltage and current, and driving the load, so as to Record the change in the size and time of the load. For example, the smart motor control method described in claim 1 of the patent scope includes: When the motor is started, a soft start drive is used. The smart motor control method as recited in claim 1, further comprising: applying a soft stop drive when the motor is turned off. For example, the smart motor control method described in claim 1 further includes: providing a protection mechanism, wherein the protection mechanism includes: low voltage protection, over voltage protection, phase loss protection, over current overload protection, manual external connection The road and the automatic external bypass are at least one of the above.