CN204285575U - A kind of solar energy full automatic controller for smoke exhaust ventilator - Google Patents

Abstract

The utility model relates to a solar fully automatic controller for range hoods, which is provided with a solar power supply unit, a DC-DC module, a control center, a sensor unit, an alarm unit and a motor speed regulating unit. The solar power unit is connected to the control center through the DC-DC module, the control center is respectively connected to the control input terminal of the motor speed control unit and the alarm unit, and the control center is also connected to the sensor unit; the control center monitors the sensor signal in real time, and according to the detected signal Issue corresponding instructions to adjust the range hood speed or alarm. The power input end of the motor speed control unit is connected to the mains, and the output end of the motor speed control unit is provided with a universal power interface, which is common to all range hoods. The controller uses solar panels to introduce green and non-polluting solar energy to provide energy for the automatic controller. The controller uses solar energy combined with rechargeable batteries to replace the traditional use of ordinary batteries for power supply, realizing multi-functional and fully intelligent controllers.

Description

A kind of solar energy automatic controller used in range hood

technical field

The utility model relates to the field of household electrical appliances, in particular to a solar automatic controller used for range hoods.

Background technique

With the development of science and technology, smart home has gradually entered people's field of vision. As one of the standing electrical appliances in the kitchen, the range hood is also developing in the direction of intelligence.

At present, intelligent range hoods exist in two forms: the body of the range hood is integrated with the control part, and the body and control part are separated. The intelligent range hood integrated with the body and control part is the mainstream in the market at present, with rich functions. Its disadvantages are: once the body is damaged, the control part will be discarded, resulting in waste of resources; if only the control part is damaged, it will be inconvenient to disassemble and repair. cause a lot of trouble. The intelligent range hood with the separation of the body and the control part is an improvement to the shortcomings of the intelligent range hood with the integration of the body and the control part. The control realizes the switch function; and the controllers of different manufacturers are all designed for their own range hood bodies, and the interfaces are not universal.

Whether it is an integrated form or a separate form, it is necessary to supply power to the control part. There are two power supply methods at present: ordinary battery power supply or mains power supply with voltage conversion circuit power supply, both of which increase the extra power consumption of the range hood. If the mains power supply is used Connected to a voltage conversion circuit for power supply, its power conversion efficiency is low, and ordinary battery power supply requires regular battery replacement, which not only increases the user's workload and use costs, but also causes serious environmental pollution when the battery is discarded.

Contents of the invention

The purpose of this utility model is to overcome the problems existing in the prior art, and provide a kind of solar energy full-automatic controller for range hood, this utility model introduces the green, pollution-free solar energy as the full-automatic controller of range hood Power supply, combined with sensor technology, motor speed control unit and dormancy function of the control center, etc., to realize the opening, closing, acceleration, deceleration of the range hood and the monitoring of combustible gas, on-site alarm and remote alarm function, and the output interface of the controller adopts general The power interface realizes the universal docking of all range hoods.

In order to achieve the above purpose, the technical solution adopted by the utility model is to provide a solar automatic controller for range hoods, including a solar power supply unit, a DC-DC module, a control center, a sensor unit, an alarm unit and a motor controller. Speed unit, the solar power supply unit is connected with the control center through the DC-DC module, the control center is respectively connected with the control input end of the motor speed control unit and the alarm unit, and the control center is also interconnected with the sensor unit; the solar power supply unit A solar panel, a charging control circuit, and a rechargeable battery are provided, wherein the electric energy of the solar panel is charged to the rechargeable battery through the charging control circuit, and the solar power supply unit supplies power to the control center, the sensor unit, and the alarm unit through the DC-DC module; The DC-DC module is used to convert the output voltage of the solar power supply unit into a stable voltage for the normal operation of other units of the controller; the sensor unit is equipped with a flame sensor, a lampblack sensor and a combustible gas sensor, and the sensor unit is used to detect range hood The state of flame, oil smoke and combustible gas in the system; the motor speed control unit adopts a frequency converter, and the control center controls the frequency converter to realize the start-up, shutdown and speed regulation of the range hood; the control center is used for real-time monitoring of sensor detection According to the received signal and according to the detected signal, the corresponding command is issued to adjust the speed of the range hood or to give an alarm.

The control center adopts a microprocessor with dormancy function, and adopts one of single-chip microcomputer, FPGA or DSP.

The alarm unit adopts a buzzer or voice module and a GSM module, adopts the buzzer or voice module to realize on-site alarm, and adopts the GSM module to realize remote alarm through short message or voice.

The power input end of the motor speed control unit is connected to the mains, and the output end of the motor speed control unit is provided with a universal power interface to realize common connection with all range hoods.

The utility model is used for the working process of the solar energy full-automatic controller of range hood as follows:

After the range hood and solar panels are installed, and the entire circuit of the solar controller completes the system initialization, the control center in the solar controller enters the sleep mode, and the sleep mode will be awakened into the working mode in two situations to complete the corresponding tasks:

One, the flame sensor wakes up. When the kitchen starts to cook food, it is an obvious feature that the stove is on fire. When the flame sensor detects a fire, it wakes up the control center and starts to work normally. The numerical value of the oil fume concentration is used to control the frequency converter of the motor speed control unit according to the predetermined command to achieve the function of controlling the start, stop and speed regulation of the range hood. When the flame sensor detects that the flame is extinguished and the oil smoke sensor detects that the oil smoke concentration is low After the value, the control center re-enters the sleep mode.

Second, the timer interrupt wakes up. The timing wake-up is realized by the internal timer of the control center. After waking up, the combustible gas sensor is used to detect the combustible gas concentration. If the combustible gas concentration is normal, the control center will continue to sleep. If the combustible gas concentration exceeds the set value of the controller, it will immediately control the inverter to start pumping. Range hood, and start the buzzer or voice module on-site alarm, and send text messages through the GSM module to achieve remote alarm; at the same time, reduce the indoor combustible gas concentration as soon as possible by starting the range hood until the combustible gas concentration is lower than a certain standard value.

The utility model has the beneficial effects that the solar automatic controller used for range hoods has:

(1) The utility model introduces green and non-polluting solar energy to supply power for the automatic controller, which saves electric energy, eliminates the work and cost of replacing the controller battery, and also avoids environmental pollution caused by waste batteries.

(2) The control center of the controller of the utility model has a sleep function. The controller combines sensor technology and the motor speed control unit to adopt corresponding control strategies to realize the low power consumption application of the entire controller and reduce the power consumption of the range hood quantity.

(3) The controller of the utility model realizes multi-functionality and complete intelligence. In addition to installing the controller before use, the user does not need to do operations such as replacing batteries and controlling switches.

(4) The controller of the utility model is provided with a universal power supply interface at the output end of the motor speed regulating unit, so as to realize common connection with all range hoods.

Description of drawings

Fig. 1 is the structural block diagram of the solar automatic controller of range hood of the present utility model.

Fig. 2 is a working flow chart of the wake-up mode of the controller of the present invention.

Fig. 3 is a working flow chart of the wake-up mode 2 of the controller of the present invention.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, but the implementation of the utility model is not limited thereto.

Embodiment 1: The utility model provides a solar energy automatic controller for range hoods. Its structure is shown in the dotted line box in Figure 1, including a solar power supply unit, a DC-DC module, a control center, a sensor unit, an alarm unit and the motor speed control unit, the solar power supply unit is connected to the control center through the DC-DC module, the control center is respectively connected to the control input end of the motor speed control unit and the alarm unit, and the control center is also interconnected with the sensor unit; The solar power supply unit is provided with a solar panel, a charging control circuit and a rechargeable battery, wherein the solar panel charges the rechargeable battery through the charging control circuit, and the solar panel converts solar energy into electric energy. On the other hand, the excess electric energy is stored in the rechargeable battery, so that when the sunlight is insufficient, it can still supply power to the controller to ensure the stable operation of the system.

The DC-DC module is used to convert the output voltage of the solar power supply unit into a stable voltage for the normal operation of other units of the controller; The state of flame, oil smoke and combustible gas in the range hood system; the motor speed control unit adopts a frequency converter, and the control center realizes the start, shutdown and speed regulation of the range hood by controlling the frequency converter; the control center is used for real-time The signal detected by the monitoring sensor and the corresponding instruction are issued according to the detected signal to adjust the speed of the range hood or an alarm instruction.

The control center adopts a microprocessor with a dormancy function, and this embodiment selects an MSP430 single-chip microcomputer with superior low power consumption performance. The utility model connects a flame sensor, an oil smoke sensor, a combustible gas sensor, a frequency converter control terminal, a buzzer and a GSM module to the port of the single-chip microcomputer. The control center also sets sleep energy saving, flame sensor external interrupt wake-up and timing wake-up monitoring sensor signal, sends out corresponding decision-making instructions according to the detected signal, adjusts the range hood speed or alarms, and reduces power consumption on the premise of completing system functions quantity.

The alarm unit adopts a buzzer and a GSM module at the same time, adopts the buzzer to realize on-site alarm, and adopts the GSM module to realize remote alarm through short message or voice.

The motor speed control unit adopts a frequency converter, the power input end of the motor speed control unit, that is, the frequency converter, is connected to the mains, and the output end of the motor speed control unit, that is, the frequency converter, is provided with a universal power supply interface to realize universal connection with all range hoods . The control input terminal of the frequency converter is connected to the control center, and the control center sends preset instructions to the control input terminal to control the frequency converter according to the signal detected by the sensor. Realize the start, stop and speed control of the connected range hood.

The utility model is used for the working process of the solar energy full-automatic controller of range hood as follows:

After the range hood and solar panels are installed, and the entire circuit of the solar controller completes the system initialization, the MSP430 in the control center of the solar controller enters the sleep mode, and the sleep mode will be awakened into the working mode under two circumstances to complete the corresponding tasks :

One, the flame sensor wakes up. When the kitchen starts to cook food and stir-fry, fire is an obvious feature. When the flame sensor detects the fire, it will wake up the MSP430 microcontroller to start normal work. The flow chart is shown in Figure 2. The single-chip microcomputer starts to monitor the flame sensor and the oil fume sensor in real time, judges whether the concentration of oil fume collected by the oil fume sensor reaches the standard, and controls the frequency converter according to the predetermined command to achieve the function of controlling the start, stop and speed regulation of the range hood. When the flame sensor detects that the flame is extinguished, and After the oil smoke sensor detects that the oil smoke concentration is low to a certain value, the controller will re-enter the dormant state.

Second, the timer interrupt wakes up. The internal timer of the single-chip microcomputer realizes timing wake-up, detects the concentration of combustible gas after wake-up, and judges whether the concentration of combustible gas exceeds the standard. The flow chart is shown in Figure 3. If the concentration of combustible gas is normal, the single-chip microcomputer continues to sleep. If the concentration of combustible gas exceeds the standard, immediately control the frequency converter to start the range hood, and start the buzzer for on-site alarm. At the same time, send SMS through the GSM module to realize remote alarm; Reduce the concentration of combustible gas in the room until the concentration of combustible gas is lower than a certain standard value, then send an instruction to the frequency converter to stop the motor from rotating.

Claims (4)

1. A solar energy automatic controller for range hoods, comprising a solar power supply unit, a DC-DC module, a control center, a sensor unit, an alarm unit and a motor speed regulating unit, characterized in that: the solar power supply unit The DC-DC module is connected to the control center, the control center is respectively connected to the control input terminal of the motor speed control unit and the alarm unit, and the control center is also interconnected with the sensor unit; the solar power supply unit is provided with a solar panel and a charging control circuit , a rechargeable battery, wherein the electric energy of the solar panel is charged to the rechargeable battery through the charging control circuit, and the solar power supply unit supplies power to the control center, the sensor unit and the alarm unit through the DC-DC module; The output voltage of the power supply unit is converted into a stable voltage for other units of the controller to work normally; the sensor unit is provided with a flame sensor, a soot sensor and a combustible gas sensor, and the sensor unit is used to detect the flame, soot and combustible gas in the range hood system. state; the motor speed control unit adopts a frequency converter, and the control center controls the frequency converter to realize the start, shutdown and speed regulation of the range hood; the control center is used for real-time monitoring of the signal detected by the sensor and sending out a signal according to the detected signal Corresponding instructions, adjust the range hood speed or alarm. 2. A kind of solar energy full-automatic controller that is used for range hood according to claim 1, is characterized in that: described control center adopts the microprocessor with dormancy function, adopts one in single-chip microcomputer, FPGA or DSP kind. 3. A kind of solar energy automatic controller for range hood according to claim 1, characterized in that: said alarm unit adopts buzzer or voice module and GSM module, buzzer or voice module is used In order to realize the on-site alarm, the GSM module realizes the remote alarm through the short message or voice. 4. A solar automatic controller for range hoods according to claim 1, characterized in that: the power input end of the motor speed control unit is connected to the mains, and the output end of the motor speed control unit Equipped with a universal power interface to achieve universal docking with all range hoods.