JP6971886B2 - Blower - Google Patents

Description

The present invention relates to a blower that blows a band-shaped airflow downward.

A blower that blows a band of airflow downward is also called an air curtain. A blower that blows a band of airflow downward may be installed above an automatic door. When a blower that blows a band-shaped airflow downward is installed on the automatic door, the airflow is blown out while the automatic door is open to blow off the dust adhering to the person passing through the automatic door, or the automatic door is opened. While it is open, it may stop blowing airflow to prevent direct airflow from people passing through automatic doors. That is, it may be operated in conjunction with the automatic door.

Patent Document 1 discloses an automatic door opening / closing device that stops the blowing of airflow from a blower while the automatic door is open.

Jikkenhei 4-28583 Gazette

However, in the invention disclosed in Patent Document 1, it is necessary to externally provide a relay circuit that shuts off the power supply circuit of the blower so that the airflow is stopped only while the automatic door is open. That is, the blower device in the invention disclosed in Patent Document 1 needs to be provided with a relay circuit in order to interlock with other equipment such as an automatic door, and cannot be easily interlocked with other equipment.

The present invention has been made in view of the above, and an object of the present invention is to obtain a blower device that can be easily interlocked with other devices.

In order to solve the above-mentioned problems and achieve the object, the present invention has a remote controller for transmitting a radio signal, a fan for generating an air flow, a DC motor for rotating the fan, a control unit for controlling the DC motor, and a radio. It has a main body including a receiving unit that receives a signal and outputs an electric signal based on the received wireless signal to the control unit. The main body is equipped with an external interlocking terminal to which signals output by other devices are input, and the control unit has a normal operation mode that generates airflow to the fan regardless of the signal input to the external interlocking terminal, and a signal to the external interlocking terminal. The DC motor is controlled in either standby mode, which causes the fan to generate airflow only when the input is input. The remote controller emits a wireless signal to switch between operation and stop based on the operation of the operation stop switching button, the air volume switching button, the mode switching button, and the operation stop switching button, and the fan is based on the operation of the air volume switching button. It is provided with a transmitting unit that transmits a wireless signal for switching the air volume of the airflow generated by the device and transmits a wireless signal for switching between the normal operation mode and the standby mode based on the operation of the mode switching button.

According to the present invention, there is an effect that it can be easily linked with other devices.

Perspective view of the blower device according to the first embodiment of the present invention. Schematic diagram of the electronic circuit board of the blower according to the first embodiment Schematic diagram showing the configuration of the remote controller of the blower according to the first embodiment. The figure which shows the transition of the operation state of the blower which concerns on Embodiment 1. A flowchart showing an operation flow at the time of recovery from a power failure of the blower device according to the first embodiment. The figure which shows the structure which realized the function of the control part of the blower device which concerns on Embodiment 1 by hardware. The figure which shows the structure which realized the function of the control part of the blower device which concerns on Embodiment 1 by software.

Hereinafter, the blower device according to the embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

Embodiment 1.
FIG. 1 is a perspective view of a blower device according to a first embodiment of the present invention. The blower device 20 according to the first embodiment is a device also called an air curtain that blows a band-shaped airflow downward, and has a main body 1 and a remote controller 10. The main body 1 has a fan 21 that generates an air flow, a DC motor 4 that rotates the fan 21, an electronic circuit board 2 on which a control unit 22 that controls the DC motor 4 is mounted, and a housing 23 that forms an outer shell. .. The DC motor 4 can easily control the rotation speed and torque by controlling the supplied current and voltage.

FIG. 2 is a schematic diagram of an electronic circuit board of the blower according to the first embodiment. In addition to the control unit 22, the electronic circuit board 2 has a tactile switch 3, an external interlocking terminal 5 to which signals output by other devices are input, a non-volatile storage device 6 that non-volatilely stores operating state information, and an operating state. A buzzer 7 that emits an electronic sound when changed, an infrared light receiving unit 8 that receives an infrared signal and outputs an electric signal based on the received infrared signal to the control unit 22, a power supply connection terminal 9 connected to a power source, and a DC motor. A motor connection terminal 15 to which the 4 is connected is mounted. The infrared light receiving unit 8 is a receiving unit that receives an infrared signal that is a wireless signal transmitted from the remote controller 10 and outputs an electric signal based on the received infrared signal to the control unit 22. Although not shown, the electronic circuit board 2 is formed with a conductor pattern of a circuit connecting each mounted component. The tactile switch 3, the buzzer 7, and the infrared light receiving unit 8 are arranged so as to match the openings formed in the housing 23. Therefore, the tactile switch 3 can be operated from the outside of the housing 23. Further, the buzzer 7 can emit a sound to the outside of the housing 23. Further, the infrared light receiving unit 8 can receive the infrared signal transmitted from the remote controller 10. The tactile switch 3, the external interlocking terminal 5, the non-volatile storage device 6, the buzzer 7, the infrared light receiving unit 8 and the control unit 22 may be provided on the main body 1, and are not mounted on the electronic circuit board 2. May be good.

The control unit 22 controls the DC motor 4 in one of two modes, a normal operation mode and a standby mode. In the normal operation mode, the control unit 22 constantly generates an air flow in the fan 21 regardless of the input signal to the external interlocking terminal 5 during operation. In the standby mode, the control unit 22 drives the DC motor 4 based on the on of the input signal of the external interlocking terminal 5, and stops the driving of the DC motor 4 based on the off of the input signal of the external interlocking terminal 5. That is, the control unit 22 generates an air flow in the fan 21 only while the input to the external interlocking terminal 5 is on during operation. During the standby mode, the control unit 22 drives the DC motor 4 when the input to the external interlocking terminal 5 is turned on or after the first set time from the time when the input to the external interlocking terminal 5 is turned on. In the first embodiment, during the standby mode, the control unit 22 can be set to drive the DC motor 4 3 seconds or 5 seconds after the input to the external interlocking terminal 5 is turned on. Further, in the standby mode, the control unit 22 stops driving the DC motor 4 when the input to the external interlocking terminal 5 is turned from on to off, or after a second set time after being turned on to off. In the first embodiment, during the standby mode, the control unit 22 can be set to stop driving the DC motor 4 5 seconds or 10 seconds after the input to the external interlocking terminal 5 is turned from on to off. Is.

The external interlocking terminal 5 is a voltage-free contact. Therefore, if the signal output by another device has a voltage within the design range, it can be input as it is without being converted to a specific voltage. In the first embodiment, it is assumed that a signal indicating an open / closed state output from the automatic door is input to the external interlocking terminal 5. That is, in the first embodiment, the blower device 20 is interlocked with the automatic door. Here, by inputting a signal to the external interlocking terminal 5 that is off while the automatic door is closed and is on while the automatic door is open, the air blower 20 is operated only while the automatic door is open. The air flow can be blown out. On the other hand, by inputting a signal to the external interlocking terminal 5 that is on while the automatic door is closed and off while the automatic door is open, the blower device 20 airflows only while the automatic door is open. You can stop the blowout. When the infrared light receiving unit 8 receives an infrared signal from the remote controller 10 and the tactile switch 3 is operated, the control unit 22 controls the DC motor 4 to switch the operation stop and the air volume. The operating state of the blower device 20 is changed.

FIG. 3 is a schematic diagram showing the configuration of the remote controller of the blower device according to the first embodiment. The remote controller 10 has an operation stop switching button 11, an air volume switching button 12, a mode switching button 13, and a transmission unit 14. When any of the operation stop switching button 11, the air volume switching button 12, and the mode switching button 13 is operated, an infrared signal is transmitted from the transmitting unit 14. The transmission unit 14 transmits an infrared signal for switching between operation and stop based on the operation of the operation stop switching button 11. Further, the transmitting unit 14 transmits an infrared signal for switching the air volume generated by the fan 21 based on the operation of the air volume switching button 12. Further, the transmitting unit 14 transmits an infrared signal for switching between the normal operation mode and the standby mode based on the operation of the mode switching button 13.

FIG. 4 is a diagram showing a transition of the operating state of the blower according to the first embodiment. The air volume switching button 12 and the mode switching button 13 of the remote controller 10 can be operated in two ways, a normal press and a long press. The normal pressing is an operation of ending the pressing in a time shorter than the reference time, and the long pressing is an operation of continuing the pressing for a longer time than the reference time.

In both the normal operation mode and the standby mode, when the operation of normally pressing the operation stop switching button 11 during operation is performed, the remote controller 10 transmits an infrared signal for switching between operation and stop from the transmission unit 14. When the infrared light receiving unit 8 receives an infrared signal for switching between operation and stop, the control unit 22 stops the drive of the DC motor 4 if the blower device 20 is in operation, and switches to a state in which the fan 21 does not generate an air flow. .. On the other hand, if the blower 20 is stopped, the DC motor 4 is driven to switch to a state in which the fan 21 generates an air flow.

In both the normal operation mode and the standby mode, when the operation of normally pressing the air volume switching button 12 during operation is performed, the remote controller 10 transmits an infrared signal for switching the air volume generated by the fan 21 from the transmitting unit 14. .. When the infrared light receiving unit 8 receives an infrared signal for switching the air volume generated by the fan 21, the control unit 22 switches the air volume. To switch the air volume, the air volume is increased by one notch each time the operation of normally pressing the air volume switching button 12 is performed, and when the maximum notch is reached, the air volume is switched to the minimum notch. In both the normal operation mode and the standby mode, when the operation of normally pressing the air volume switching button 12 is performed while the vehicle is stopped, the infrared light receiving unit 8 ignores the infrared signal and outputs an electric signal based on the received infrared signal. Do not output to the control unit 22. Therefore, in both the normal operation mode and the standby mode, the control unit 22 does not change the operating state of the blower device 20 even if the operation of normally pressing the air volume switching button 12 during stop is performed. In both the normal operation mode and the standby mode, when the operation of pressing and holding the air volume switching button 12 is performed, the transmitting unit 14 transmits an infrared signal for switching the first set time. When the infrared light receiving unit 8 receives the infrared signal for switching the first set time, the control unit 22 switches the first set time. The first set time is switched to 5 seconds by switching the first set time in the order of 0 seconds, 3 seconds, and 5 seconds each time the operation of pressing and holding the air volume switching button 12 is performed. In the state, it switches to 0 seconds.

When the operation of normally pressing the mode switching button 13 during the normal operation mode is performed, the transmitting unit 14 transmits an infrared signal for switching from the normal operation mode to the standby mode. When the infrared light receiving unit 8 receives an infrared signal for switching from the normal operation mode to the standby mode, the control unit 22 switches from the normal operation mode to the standby mode. Further, when the operation of normally pressing the mode switching button 13 is performed during the standby mode, the transmitting unit 14 transmits an infrared signal for switching from the standby mode to the normal operation mode. When the infrared light receiving unit 8 receives an infrared signal for switching from the standby mode to the normal operation mode, the control unit 22 switches from the standby mode to the normal operation mode. Further, in both the normal operation mode and the standby mode, when the operation of pressing and holding the mode switching button 13 is performed, the transmitting unit 14 transmits an infrared signal for switching the second set time. When the infrared light receiving unit 8 receives the infrared signal for switching the second set time, the control unit 22 switches the second set time. The second set time is switched to 10 seconds by switching the second set time in the order of 0 seconds, 5 seconds, and 10 seconds each time the operation of pressing and holding the air volume switching button 12 is performed. In the state, it switches to 0 seconds. By pressing and holding the air volume switching button 12 and the mode switching button 13 to switch between the first set time and the second set time, the buttons for switching the first set time and the second set time are separately provided. It is not necessary to provide it in the remote controller 10.

The tactile switch 3 can be operated in two ways, a normal press and a long press. When the operation of pressing and holding the tactile switch 3 is performed during the normal operation mode, the control unit 22 switches from the normal operation mode to the standby mode. Further, when the operation of pressing and holding the tactile switch 3 is performed during the standby mode, the control unit 22 switches from the standby mode to the normal operation mode. When the operation of normally pressing the tactile switch 3 during operation in the normal operation mode is performed, the control unit 22 switches the air volume generated by the fan 21. To switch the air volume, the air volume is increased by one notch each time the operation of normally pressing the tactile switch 3 is performed, and when the maximum notch is reached, the air volume is switched to the minimum notch. When the operation of normally pressing the tactile switch 3 is performed while the operation is stopped while the mode is set to the normal operation mode, the control unit 22 drives the DC motor 4 to start the operation of the blower device 20. When the operation of normally pressing the tactile switch 3 is performed during the standby mode, the operating state of the blower device 20 is not changed.

The time from when a person is detected until the door starts to open and the time from when the person is no longer detected until the door closes differ depending on the model of the automatic door linked with the blower device 20. Therefore, by making it possible to set a second set time from the time when the input to the external interlocking terminal 5 is turned on to the time when the drive of the DC motor 4 is stopped, it is possible to reliably set the time until the door is closed. Airflow can be formed. Further, by making it possible to set the first set time from the time when the input to the external interlocking terminal 5 is turned on until the start of driving the DC motor 4, the air flow is generated only after a person has passed. It is possible to prevent the airflow from directly hitting the human head.

By emitting an electronic sound from the buzzer 7 when operating the operation stop switching button 11, the air volume switching button 12, the mode switching button 13, and the tactile switch 3, the user recognizes the content of the operation received by the control unit 22 based on the auditory sense. can do. In FIG. 4, the electronic sound emitted by the buzzer 7 is a long sound, a short sound, or two short sounds, but it is sufficient if the user can recognize the operation content by the difference in the electronic sound.

FIG. 5 is a flowchart showing an operation flow at the time of recovery from a power failure of the blower device according to the first embodiment. In step S1, the control unit 22 reads out the information on the operating state of the blower device 20 stored in the non-volatile storage device 6, and determines whether or not the standby mode was set before the power failure. If it was in the standby mode before the power failure, it becomes Yes in step S1, and in step S2, the control unit 22 shifts the blower device 20 to the stopped state of the standby mode. The stopped state of the standby mode is a state of being stopped by setting the standby mode. Further, the control unit 22 sets the set air volume, the first set time, and the second set time to the same settings as before the power failure. On the other hand, if it was not in the standby mode before the power failure, No in step S1, and in step S3, the control unit 22 shifts the blower device 20 to the stopped state of the normal operation mode. The stopped state in the normal operation mode is a state in which the vehicle is stopped by setting the normal operation mode. Further, the control unit 22 sets the set air volume, the first set time, and the second set time to the same settings as before the power failure. That is, in step S2 or step S3, when the control unit 22 is stopped due to a power failure, the control unit 22 returns to the same state as before the power failure based on the information stored in the non-volatile storage device 6.

Since the control unit 22 recovers in the same operating state as before the power failure, it is not necessary to reset the operation mode, the air volume, the first set time, and the second set time at the time of recovery.

In the above description, the remote controller 10 and the main body 1 have performed infrared communication, but the remote controller 10 and the main body 1 may communicate wirelessly, and the communication form is not limited to infrared communication.

The function of the control unit 22 is realized by a processing circuit. The processing circuit may be dedicated hardware or an arithmetic unit that executes a program stored in the storage device.

If the processing circuit is dedicated hardware, the processing circuit may be a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an application-specific integrated circuit, a field programmable gate array, or a combination thereof. Applies to. FIG. 6 is a diagram showing a configuration in which the function of the control unit of the blower device according to the first embodiment is realized by hardware. The processing circuit 29 incorporates a logic circuit 29a that realizes the function of the control unit 22. A microcontroller can be exemplified as the hardware that realizes the processing circuit 29.

When the processing circuit 29 is an arithmetic unit, the function of the control unit 22 is realized by software, firmware, or a combination of software and firmware.

FIG. 7 is a diagram showing a configuration in which the function of the control unit of the blower device according to the first embodiment is realized by software. The processing circuit 29 includes an arithmetic unit 291 that executes the program 29b, a random access memory 292 that the arithmetic unit 291 uses for the work area, and a storage device 293 that stores the program 29b. The function of the control unit 22 is realized by the arithmetic unit 291 expanding the program 29b stored in the storage device 293 on the random access memory 292 and executing the program 29b. The software or firmware is written in a programming language and is stored in the storage device 293. The arithmetic unit 291 can exemplify a central processing unit, but is not limited thereto.

The processing circuit 29 realizes the function of the control unit 22 by reading and executing the program 29b stored in the storage device 293. It can be said that the program 29b causes the computer to execute the procedure and the method for realizing the function of the control unit 22.

The processing circuit 29 may be partially realized by dedicated hardware and partially realized by software or firmware.

As described above, the processing circuit 29 can realize each of the above-mentioned functions by hardware, software, firmware, or a combination thereof.

In the blower device 20 according to the first embodiment, since the main body 1 and the remote controller 10 are wirelessly connected, it is not necessary to lay the wiring for connecting the main body 1 and the remote controller 10. Further, since it is not necessary to install the remote controller 10 around the doorway where the main body 1 is installed, the remote controller 10 can be arranged in an inconspicuous place so as not to spoil the aesthetic appearance.

Since the blower device 20 according to the first embodiment includes the external interlocking terminal 5, a relay circuit for shutting off the power supply circuit of the blower device 20 is not provided so as not to generate an air flow in the fan 21 only while the automatic door is open. However, it is possible to generate an air flow in conjunction with the automatic door. In the first embodiment described above, the blower device 20 is interlocked with the automatic door, but the other device to be interlocked is not limited to the automatic door. Further, in the blower device 20 according to the first embodiment, since the fan 21 is rotated by the DC motor 4, the current and voltage supplied to the DC motor 4 are adjusted, so that the indoor / outdoor temperature difference and the strength of the outside wind are strong after the construction. It is easy to change the air volume setting according to the installation environment. Further, in the blower device 20 according to the first embodiment, since the fan 21 is rotated by the DC motor 4, it is easy to set the operating strength to multiple stages of 3 notches or more.

The configuration shown in the above-described embodiment shows an example of the content of the present invention, can be combined with another known technique, and is one of the configurations as long as it does not deviate from the gist of the present invention. It is also possible to omit or change the part.

1 Main unit, 2 Electronic circuit board, 3 Tactile switch, 4 DC motor, 5 External interlocking terminal, 6 Non-volatile storage device, 7 Buzzer, 8 Infrared light receiving part, 9 Power supply connection terminal, 10 Remote controller, 11 Operation stop switching button, 12 Air volume switching button, 13 mode switching button, 14 transmitter, 15 motor connection terminal, 20 blower, 21 fan, 22 control unit, 23 housing, 29 processing circuit, 29a logic circuit, 29b program, 291 arithmetic unit, 292 random Access memory, 293 storage device.

Claims (6)

Generating an air flow fan, has this body provided with a control unit for controlling the fan makes the chromophore at the distal end over motor rotates, and before liver over data,
The main body is equipped with an external interlocking terminal to which signals output by other devices are input.
The control unit generates the airflow in the fan only in the normal operation mode in which the airflow is generated in the fan regardless of the signal input to the external interlocking terminal and in the state where the signal is input to the external interlocking terminal. blowing device and controls the liver over data before switching between standby mode to. Wherein, in the standby mode, the drives Liver over data before on the basis of the ON input signal of the external interlocking pin, driving of the external interlocking liver over data before based off of the input signal at the terminal The blower according to claim 1, wherein the blower is stopped. Wherein the control unit is configured to drive the front Liver over data from when the input signal is turned on the external interlocking pin after the first set time, the input signal of the external interlocking pin from getting off the second blower according to claim 2, characterized in that stops the driving of the pre-liver over data after during setting. Equipped with a remote controller that emits wireless signals
The main body includes a receiving unit that receives the wireless signal and outputs an electric signal based on the received wireless signal to the control unit.
The remote controller is
Operation stop switching button and
Air volume switching button and
Mode switching button and
The wireless signal for switching between operation and stop is transmitted based on the operation of the operation stop switching button, and the wireless signal for switching the air volume of the airflow generated by the fan is transmitted based on the operation of the air volume switching button. It has a transmitter for transmitting the wireless signal that switches between the normal operation mode and the standby mode based on the operation of the mode switching button.
The transmitter is
When the air volume switching button is normally pressed, the radio signal for switching the air volume generated by the fan is transmitted.
When the air volume switching button is pressed and held, the wireless signal for switching the first set time is transmitted.
When the mode switching button is normally pressed, the wireless signal for switching between the normal operation mode and the standby mode is transmitted.
The blower according to claim 3, wherein when the mode switching button is pressed and held for a long time, the radio signal for switching the second set time is transmitted. The body is equipped with a tactile switch and
The control unit is characterized in that when the tactical switch is normally pressed, the air volume of the airflow is switched, and when the tactical switch is pressed and held for a long time, the normal operation mode and the standby mode are switched. The blower according to any one of claims 1 to 4. The main body includes a non-volatile storage device that stores an operating state.
One of claims 1 to 5, wherein when the control unit is stopped due to a power failure, the control unit returns to the same operating state as before the power failure based on the information stored in the non-volatile storage device. Blower as described in.

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