CN209978289U - Automatic control air curtain machine - Google Patents
Automatic control air curtain machine Download PDFInfo
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- CN209978289U CN209978289U CN201920810306.1U CN201920810306U CN209978289U CN 209978289 U CN209978289 U CN 209978289U CN 201920810306 U CN201920810306 U CN 201920810306U CN 209978289 U CN209978289 U CN 209978289U
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Abstract
The utility model relates to an automatic control air curtain machine. The automatic control air curtain machine of the utility model comprises a machine case, a main control chip, a motor, a power module and a human body induction module, wherein the main control chip, the motor, the power module and the human body induction module are arranged in the machine case; the motor is connected to a control port of the main control chip; the human body induction module is connected to a detection port of the main control chip; when a person approaches the human body induction module, the human body induction module transmits a detection signal to the main control chip; the main control chip receives the detection signal and sends a control signal to the motor to drive the motor to be started; the power module is electrically connected with the main control chip, the motor and the human body induction module to provide power. The automatic control air curtain machine has the advantages that the automatic control air curtain machine can detect that a human body is close to or far away from the automatic control air curtain machine, and the automatic control air curtain machine can be automatically opened or closed.
Description
Technical Field
The utility model relates to an air curtain machine technical field especially relates to an automatic control air curtain machine.
Background
The air curtain machine is a door curtain formed by sending curtain-shaped air flow with certain speed and temperature through strong air flow generated by rotation of the wind wheel, and is usually installed above unit doors of supermarkets, shops, telecommunication business halls, bank business halls, government or enterprise and public office halls and the like. The air curtain machine is started to separate indoor and outdoor air, so that people can conveniently come out, cold and hot air exchange between the indoor air and the outdoor air can be prevented, the indoor temperature is kept constant, and meanwhile, the air curtain machine can block dust and insects from entering, and the diffusion of harmful gas and peculiar smell and the like.
At present, an air curtain machine used in the market is generally controlled to be opened and closed by an infrared remote controller or a boat-shaped mechanical switch, but the control mode has the problem of inconvenient use, for example, when people carry things or hold valuables, the people need to put down the valuables in hands to open the remote controller or the mechanical switch, and the air curtain machine is not convenient enough.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at providing an automatic control air curtain machine, it has the advantage that can detect the human body and be close to or keep away from, open or close the air curtain machine automatically.
An automatic control air curtain machine comprises a machine case, a main control chip, a motor, a power supply module and a human body induction module, wherein the main control chip, the motor, the power supply module and the human body induction module are arranged in the machine case; the motor is connected to a control port of the main control chip; the human body induction module is connected to a detection port of the main control chip; when a person approaches the human body induction module, the human body induction module transmits a detection signal to the main control chip; the main control chip receives the detection signal and sends a control signal to the motor to drive the motor to be started; the power module is electrically connected with the main control chip, the motor and the human body induction module to provide power.
Automatic control air curtain machine, can detect human body signal when the people is close to the door, open air curtain machine automatically to keep away from the door at the people and close air curtain machine, need not manual control, very convenient.
Furthermore, the human body induction module is a microwave induction module arranged on the outer wall of the case.
Further, the motor driving module is connected between the main control chip and the motor; the motor driving module comprises a high-grade driving circuit and a low-grade driving circuit which are connected with the control port of the main control chip; the high-grade drive circuit is connected to a high-grade wiring terminal of the motor; the low-gear driving circuit is connected to a low-gear wiring terminal of the motor.
Furthermore, the high-grade drive circuit and the low-grade drive circuit both comprise a triode and a relay connected with a collector of the triode; the base electrode of the triode is connected to the control port of the main control chip, and the emitting electrode of the triode is connected to the negative electrode of the power supply module; the relay comprises a coil and a contact switch; a first pin of the coil is connected to a collector of the triode, and a second pin of the coil is connected to the anode of the power supply module; the contact switch is connected between a power live wire and the wiring terminal of the motor in series.
Further, the power module comprises a transformer connected to the mains supply, a rectifier bridge, a first voltage stabilizing chip and a second voltage stabilizing chip, wherein the rectifier bridge, the first voltage stabilizing chip and the second voltage stabilizing chip are sequentially connected to the rear end of the transformer; the transformer is used for reducing the voltage of the alternating current commercial power; the rectifier bridge rectifies the alternating current after the voltage reduction of the transformer and outputs direct current; the first voltage stabilizing chip stabilizes the direct current and outputs a first direct current; the second voltage stabilizing chip stabilizes the first direct current and outputs a second direct current.
Further, the remote control device also comprises a remote controller; and the receiving end of the remote controller is connected to the detection port of the main control chip.
Further, the heating device also comprises a heating body arranged at the air outlet of the motor; the heating body is connected to the control port of the main control chip through a heating driving circuit.
Furthermore, the intelligent control system also comprises a status indicator lamp connected to the control port of the main control chip.
Furthermore, the system also comprises a buzzer connected to the control port of the main control chip.
For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic block diagram of an automatic control air curtain machine according to the present invention;
fig. 2 is a schematic circuit diagram of the motor driving module according to the present invention;
fig. 3 is a schematic circuit diagram of the heating driving module according to the present invention;
fig. 4 is a schematic circuit diagram of the power module of the present invention;
fig. 5 is a schematic circuit diagram of the human body induction module of the present invention.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Please refer to fig. 1, which is a block diagram illustrating an automatic control air curtain machine according to the present invention.
Automatic control air curtain machine, including quick-witted case, set up in quick-witted incasement portion's main control chip 10, motor drive module 20, motor 30, heating drive module 40, heating member 50 and power module 60 to and set up human response module 70 on quick-witted outer wall of the case. The power module 60 is electrically connected with the main control chip 10, the motor driving module 20, the motor 30, the heating driving module 40, the heating body 50 and the human body sensing module 70 to provide power. The motor 30 is connected to a control port of the main control chip 10 through the motor driving module 20; the human body sensing module 70 is connected to a detection port of the main control chip 10; when a person enters or exits the door, the human body sensing module 70 transmits a detection signal to the main control chip 10; the main control chip 10 receives the detection signal, and sends a control signal to the motor 30 through the motor driving module 20 to drive the motor 30 to be started.
The automatic control air curtain machine in the embodiment is usually arranged above a door, and curtain-shaped air flow with a certain speed and a certain temperature is sent out to form an invisible door curtain, so that the air curtain machine can block the outside air from entering the door when a person enters the door, and a human body sensing module is arranged to detect whether the person approaches the door in real time. When someone is close to the door and needs to pass in and out, the human body induction module can detect out, and produce detection signal and convey to main control chip, and main control chip sends control signal to opening of motor drive motor, keeps away from the door when the people, and human body induction module can't acquire human body signal, and at this moment, main control chip just can control the motor and close, thereby realizes opening or closing of the automation of air curtain machine, need not opening or closing of user hand control air curtain machine, and is very convenient.
The main control chip 10 is used as a processing element of a core, receives a signal of the human body sensing module 70 in real time, that is, detects whether a person approaches or leaves the door, and determines to output a high-low level signal according to the detected signal to control the rotation or stop of the motor 30, so as to realize the automatic opening or closing of the air curtain machine. In this embodiment, the model of the main control chip 10 may be HT66F 004. The single chip microcomputer is an 8-bit Flash single chip microcomputer with a high-performance simplified instruction set, further comprises an RAM data memory and an EEPROM memory which can be used for storing nonvolatile data such as serial numbers and calibration data, provides high-speed and low-speed oscillator function options, is internally provided with a complete system oscillator, does not need peripheral components, has the capability of dynamically switching between different working modes, provides a means for optimizing operation and reducing power consumption for users, and can be widely applied to various control products. In other embodiments, the main control chip 10 may also select a single chip microcomputer of another model.
Please refer to fig. 2, which is a schematic circuit diagram of the motor driving module according to the present invention.
The motor driving module 20 is connected between the control port of the main control chip 10 and the motor 30, and is configured to receive a control signal of the main control chip 10 to perform gear control on the motor 30, so as to implement multi-gear control of the air curtain machine. The motor driving module 20 comprises a high-grade driving circuit and a low-grade driving circuit; the input end of the high-grade drive circuit is connected to the signal output port PB1 of the main control chip 10, and the output end of the high-grade drive circuit is connected to the high-grade wiring terminal of the motor 30; the input end of the low-gear driving circuit is connected to the signal output port PB0 of the main control chip 10, and the output end is connected to the low-gear wiring terminal of the motor 30.
Specifically, the high-gear driving circuit and the low-gear driving circuit respectively comprise triodes (Q1, Q2) and relays (K1, K2) connected to the collectors of the triodes. The base electrode of the triode Q1 of the high-grade drive circuit is connected to the output port PB1 of the main control chip 10 through a matching resistor with a resistance value of 4.7K ohms, and the emitter electrode is connected to the negative electrode GND of the power module 60; a first pin of a coil of the relay K1 is connected to a collector of the triode Q1, and a second pin is connected to a +12V output end of a first voltage stabilizing chip of the power supply module 60; the contact switch is connected in series between the live power line and the high-grade operation connection terminal of the motor 30. The base electrode of the triode Q2 of the low-level driving circuit is connected to the output port PB0 of the main control chip 10 through a matching resistor with a resistance value of 4.7K ohms, and the emitter electrode is connected to the negative electrode GND of the power module 60; a first pin of a coil of the relay K2 is connected to a collector of the triode Q2, and a second pin of the relay K2 is connected to a +12V output end of a first voltage stabilizing chip of the power supply module 60; diodes are connected between two pins of the coils of the relays K1 and K2 in series in a reverse direction, and the model number of the diodes is 4148; the contact switch is connected in series between the live power line and the low-gear operation connection terminal of the motor 30. In one embodiment, the transistors Q1 and Q2 are NPN transistors, model number 8050; in other embodiments, transistors Q1 and Q2 may be of other types.
When the human body sensing module 70 detects that a person approaches the door, it continuously sends a high level signal to the detection port PA4 of the main control chip 10 until the person leaves the door, and at this time, when the main control chip 10 detects that the port PA4 is at a high level, the control output port PB0 or PB1 outputs a high level signal to turn on the triode Q1 or Q2, the relay K1 or K2 is attracted, and the motor 30 starts to operate; when a human body is far away from the door, the human body sensing module 70 cannot sense a human body signal, at this time, the detection port PA4 of the main control chip 10 is suspended at a low level, and the control output port PB0 or PB1 outputs a low level signal to enable the triode Q1 or Q2 to be in a cut-off state, the relay K1 or K2 is disconnected, and the air curtain machine stops running.
The motor 30 generates strong airflow by high-speed rotation to form an invisible door curtain, and the motor 30 has a plurality of terminals, specifically: a high-grade operation connecting terminal and a low-grade operation connecting terminal which are connected to the output end of the motor driving module 20, a zero line terminal connected to a commercial power zero line, and a capacitor connecting terminal connected with a starting capacitor in parallel. The capacitance value of the starting capacitor can be 4.7uF/500V, and other capacitance values can also be used.
Please refer to fig. 3, which is a schematic circuit diagram of the heating driving module according to the present invention.
The heating body 50 is a PTC heating body, and is disposed at an air outlet of the motor 30, so that the air blown out from the motor 30 is hot air. The heating body 50 is connected to the control port of the main control chip through a heating driving module 40. The heating driving module 40 includes a transistor Q3 and a relay K3 connected to a collector of the transistor Q3. The base electrode of the triode Q3 is connected to the output port PB2 of the main control chip 10 through a matching resistor with a resistance value of 4.7K ohms, and the emitter electrode is connected to the negative GND of the power module 60; a first pin of a coil of the relay K3 is connected to a collector of the triode Q3, and a second pin is connected to a +12V output end of a first voltage stabilizing chip of the power supply module 60; diodes are reversely connected in series between two pins of a coil of the relay K3, and the model number of the diodes is 4148; the contact switch is connected in series between the live power line and the power connection terminal of the heating body 50. In one embodiment, the transistor Q3 is an NPN transistor, model number 8050; in other embodiments, the transistor Q3 may have other types.
When the output port PB0 or PB1 of the main control chip 10 outputs a high level signal to turn on the transistor Q1 or Q2, the output port PB2 also synchronously outputs a high level signal to turn on the transistor Q3, and the relay K3 pulls in, so that the power connection terminal of the heater 50 is connected to the live wire of the power supply to be electrically heated.
Please refer to fig. 4, which is a schematic circuit diagram of the power module according to the present invention.
The power module 60 comprises a transformer connected to the mains supply, a rectifier bridge, a first voltage stabilizing chip and a second voltage stabilizing chip, wherein the rectifier bridge, the first voltage stabilizing chip and the second voltage stabilizing chip are sequentially connected to the rear end of the transformer; the transformer is used for reducing the voltage of the alternating current commercial power; the rectifier bridge rectifies the alternating current after the voltage reduction of the transformer and outputs direct current; the first voltage stabilization chip stabilizes the direct current output by the rectifier bridge and outputs 12V direct current, and the 12V direct current is electrically connected to the second voltage stabilization chip and relays of the motor driving module and the heating driving module 40; the second voltage stabilization chip stabilizes the 12V dc and outputs 5V dc to the main control chip 10, and other modules.
Specifically, a primary coil of the transformer is connected to a mains supply, and a secondary coil of the transformer is connected to a rectifier bridge, so that low-voltage alternating current is output to the rectifier bridge. In order to avoid that the current rises continuously to damage important devices in the circuit or cause fire when the circuit is in fault or abnormal, a fuse is also arranged between the primary coil and a live wire of the mains supply. When the current abnormally rises to a certain height and heat, the fuse itself is fused to cut off the power supply, thereby protecting the safe operation of the circuit. In addition, a voltage limiting type protection device, namely the piezoresistor 10D471, is arranged before the primary coil of the transformer is connected with the mains supply, and by utilizing the nonlinear characteristic of the piezoresistor 10D471, when an overvoltage appears between two electrodes of the piezoresistor 10D471, the piezoresistor 10D471 can clamp the voltage to a relatively fixed voltage value, so that the protection of a rear-stage circuit is realized.
The rectifier bridge adopts full-bridge rectification, and two inputs are connected to the output of transformer, two outputs are connected to first voltage regulation chip LM7812, convert alternating current to the direct current through rectifier diode.
In this embodiment, the model of the first voltage stabilizing chip is LM7812, or other models, and filter capacitors are provided at the input and output ends of the first voltage stabilizing chip to perform filtering so as to obtain a stable +12V dc voltage. The voltage stabilizing chip 7812 is a three-terminal voltage stabilizing integrated circuit chip component, is suitable for various power supply voltage stabilizing circuits, has the advantages of good output stability, convenient use, automatic protection of output overcurrent and overheating, has an output voltage range of 11.5V-12.5V, and can stably output +12V direct current under normal conditions.
The model of the second voltage stabilizing chip adopts LM7805 or other models, and a filter capacitor is arranged at the output end of the second voltage stabilizing chip to filter so as to obtain stable +5V direct-current voltage. The voltage stabilizing chip LM7805 is a three-terminal voltage stabilizing integrated circuit chip component, is suitable for various power supply voltage stabilizing circuits, has the advantages of good output stability, convenience in use, and automatic protection of output overcurrent and overheating, has the output voltage range of 4.8V-5.2V, and can stably output +5V direct current under the common condition.
Specifically, the capacitance value of the filter capacitor matched with the first voltage stabilizing chip is 470uF/25V, and the capacitance value of the filter capacitor matched with the first voltage stabilizing chip is 0.1uF/50V and 220 uF/16V.
Please refer to fig. 5, which is a schematic circuit diagram of the human body sensing module according to the present invention.
In this embodiment, the human body sensing module 70 is a microwave sensing module disposed on the outer wall of the chassis, and the microwave sensing module includes a sensing circuit and a signal processing module; the sensing circuit detects approach of a human body, generates a detection signal and transmits the detection signal to the signal processing module for signal processing, and then transmits the detection signal to the detection port PA4 of the main control chip 10, and the detection port PA5 of the main control chip 10 is connected with an enabling switch, when the enabling switch is closed, the main control chip 10 receives the detection signal transmitted by the microwave induction module. In other embodiments, the microwave sensing module may also be disposed above the door or at another suitable sensing position, and connected to the main control chip 10 through a wire.
Further, the automatic control air curtain machine is also provided with a remote controller, the control end of the remote controller is directly controlled by a user, the receiving end of the remote controller is connected to the detection port PA1 of the main control chip 10, and the remote controller is convenient for the user to control various working states of the air curtain machine. The control end of the remote controller is directly controlled by a user, the receiving end of the remote controller is connected to the detection port PA1 of the main control chip 10, and the remote controller is convenient for the user to control various working states of the air curtain machine.
Furthermore, the automatic control air curtain machine is also provided with key switches K1 and K2, and a key K1 controls the on-off and heating; the key K2 controls high range operation and low range operation. One end of the key K1 or K2 is connected to the power supply cathode GND, and the other end is connected to the detection ports of PA2 and PA3 of the main control chip 10 and is connected to a +5V direct current power supply through a pull-up resistor. When the key is pressed, the PA2 and PA3 detection ports of the main control chip 10 can detect a high level to control the on or off of the motor.
Further, the automatic control air curtain machine is also provided with a status indicator lamp installed on the outer wall of the case, specifically, the automatic control air curtain machine comprises a first LED red lamp connected to the control port PC2 of the main control chip 10, and the first LED red lamp is a high-grade operation indicator lamp of the air curtain machine; a second LED green light including a control port PC1 connected to the main control chip 10, which is a low-grade operation indicator light of the air curtain machine; and a third LED red light connected to the control port PC0 of the main control chip 10, which is an air curtain machine heating operation indicator light. The user and the installation maintenance personnel can intuitively know the operating state of the air curtain machine by observing the color of the indicator lamp.
Further, the automatic control air curtain machine also has a triode and a buzzer connected to the control port PA0 of the main control chip 10. The buzzer is connected with the collector of the triode and the +5V direct-current power supply; the emitter of the triode is connected to the cathode of the power module 60; the base of the transistor is connected to the control port PA0 of the main control chip 10. When the control port PA0 outputs a high level to turn on the triode, the buzzer sounds when necessary, that is, the buzzer sounds when the main control chip 10 receives a remote control signal or a key signal, so as to prompt whether the control circuit is normal.
The utility model discloses an automatic control air curtain machine, whether be provided with microwave response module real-time detection someone and be close to the door, when someone is close to the door and needs the business turn over, microwave response module just can detect out, and produce detection signal conveying to main control chip, main control chip sends opening of control signal to motor drive motor, keep away from the door when the people, human response module can't acquire human body signal, at this moment, main control chip just can control motor and close, thereby realize the automation of air curtain machine and open or close, need not opening or closing of user with hand control air curtain machine. In addition, this air curtain machine is an electric heat type air curtain machine, can also control through remote controller and key switch simultaneously, has brought the facility for daily use and maintenance.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (9)
1. An automatic control air curtain machine comprises a case, a main control chip arranged in the case, a motor and a power supply module; the motor connect in main control chip's control port, its characterized in that: the human body induction module is also included; the human body induction module is connected to a detection port of the main control chip; when a person approaches the human body induction module, the human body induction module transmits a detection signal to the main control chip; the main control chip receives the detection signal and sends a control signal to the motor to drive the motor to be started; the power module is electrically connected with the main control chip, the motor and the human body induction module to provide power.
2. The automatically controlled air curtain machine of claim 1, wherein: the human body induction module is a microwave induction module arranged on the outer wall of the case.
3. The automatically controlled air curtain machine of claim 1, wherein: the motor driving module is connected between the main control chip and the motor; the motor driving module comprises a high-grade driving circuit and a low-grade driving circuit which are connected with the control port of the main control chip; the high-grade drive circuit is connected to a high-grade wiring terminal of the motor; the low-gear driving circuit is connected to a low-gear wiring terminal of the motor.
4. The automatically controlled air curtain machine of claim 3, wherein: the high-grade drive circuit and the low-grade drive circuit both comprise triodes and relays connected to the collector electrodes of the triodes; the base electrode of the triode is connected to the control port of the main control chip, and the emitting electrode of the triode is connected to the negative electrode of the power supply module; the relay comprises a coil and a contact switch; a first pin of the coil is connected to a collector of the triode, and a second pin of the coil is connected to the anode of the power supply module; the contact switch is connected between a power live wire and the wiring terminal of the motor in series.
5. The automatically controlled air curtain machine of claim 1, wherein: the power supply module comprises a transformer connected to commercial power, a rectifier bridge, a first voltage stabilizing chip and a second voltage stabilizing chip, wherein the rectifier bridge, the first voltage stabilizing chip and the second voltage stabilizing chip are sequentially connected to the rear end of the transformer; the transformer is used for reducing the voltage of the alternating current commercial power; the rectifier bridge rectifies the alternating current after the voltage reduction of the transformer and outputs direct current; the first voltage stabilizing chip stabilizes the direct current and outputs a first direct current; the second voltage stabilizing chip stabilizes the first direct current and outputs a second direct current.
6. The automatically controlled air curtain machine of claim 1, wherein: the remote control also comprises a remote controller; and the receiving end of the remote controller is connected to the detection port of the main control chip.
7. The automatically controlled air curtain machine of claim 1, wherein: the heating body is arranged at the air outlet of the motor; the heating body is connected to the control port of the main control chip through a heating driving circuit.
8. The automatically controlled air curtain machine of claim 1, wherein: the intelligent control system also comprises a status indicator lamp connected to the control port of the main control chip.
9. The automatically controlled air curtain machine of claim 1, wherein: the intelligent control system also comprises a buzzer connected to the control port of the main control chip.
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| CN201920810306.1U CN209978289U (en) | 2019-05-30 | 2019-05-30 | Automatic control air curtain machine |
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| CN201920810306.1U CN209978289U (en) | 2019-05-30 | 2019-05-30 | Automatic control air curtain machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556082A (en) * | 2020-11-25 | 2021-03-26 | 广州西奥多科技有限公司 | Intelligent air curtain |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556082A (en) * | 2020-11-25 | 2021-03-26 | 广州西奥多科技有限公司 | Intelligent air curtain |
| CN112556082B (en) * | 2020-11-25 | 2022-07-26 | 广州西奥多科技有限公司 | Intelligent air curtain |
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