JPH0989319A - Range hood device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce influences of distance factor in a remote controlling operation or an external cause by a method wherein an operating part in which an operation inputting such as a changing-over of an amount of air displays an operating state of a fan motor based on a content of informing the operating state of the fan motor. SOLUTION: An operating part 101 is comprised of a control circuit 105 for transmitting a signal in series to a main body 102 of a range hood and of a transmission means having an LED driver 106. In turn, the main body 102 of the range hood comprises an LED driver 111 for transmitting signals including the type of air amount during an operation of a fan motor 117 or the type of air amount during its stopped state in series to the operating part 101 and of an informing means having a control circuit 112. Then, when these means display the operating state, the operating part 101 displays the operating state of the fan motor 117 in response to the informing content of the operating states. With such an arrangement as above, it is possible to reduce the number of signal lines between the operating part 101 and the main body of the range hood and at the same time to improve a workability of a wire setting work.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a range hood device capable of remotely performing an operation input such as switching of air volume.

[0002]

2. Description of the Related Art As is well known, a range hood device, as shown in FIG. 5, has a range hood main body 52 provided above a heating device, and an air volume of a fan motor provided on the front side of the heating device. And an operating section 51 for operating the
Signal line 5 for electrically connecting the range hood body 52 and the range hood main body 52
3 and.

By the way, the operating section 51 of the conventional range hood device, as shown in FIG. 6, has switches SW1, SW2, SW3 for switching the intensity of the fan motor 58 in the range hood main body 52 and the illumination 55. SW4,
LED1 and LED2 (light emitting diodes) for displaying the operating condition of the fan motor 58 on the monitor are configured.

On the other hand, the range hood main body 52 is provided with an operating section 5
Key input processing circuit 5 for inputting a signal related to key operation 1
4, an illumination lamp 55, a lamp relay 57 for controlling the opening and closing of a switch 56 for the power source of the illumination lamp 55,
The fan motor 58, a power switch 59 for the strong wind operation of the fan motor 58, a strong wind relay 60 for controlling the opening / closing of the power switch 59, a power switch 61 for the weak wind operation, and a weak wind for controlling the opening / closing. Relay 62
And are configured.

Then, the terminals of the four switches of the operation section 51 and the key input processing circuit 54 of the range hood body 52.
Are connected by signal lines 53a, 53b, 53c, 53d, respectively, and a total of five signal lines including the ground line 53e are connected. Further, a signal line 53h for notifying that the fan motor 58 is in strong wind operation and a signal line 53g for notifying that the fan motor 58 is in strong wind are connected to the output terminal of the key input processing circuit 54 of the range hood main body 52, In addition, a signal line 53f for supplying power is added, and a total of three signal lines are connected.

As described above, in the conventional range hood device, the switches SW1, SW2, SW of the operation unit 51 are provided.
The terminals of SW3 and SW4, the terminals of the display devices LED1 and LED2, and the terminals of the key input processing circuit 54 provided in the range hood body 52 were directly connected via the signal line 53.

[0007]

Therefore, in the above-mentioned conventional range hood device, the switches SW1, SW2, SW3 and SW4 of the operation section 51 and the key input processing section 54 in the range hood body 52 are provided. The signal line 53 is wired in a one-to-one relationship with each input terminal, and the LE for monitor display is also provided.
Since all of D1 and LED2 have a configuration in which the output terminal of the key input processing unit 54 and the signal line must be connected,
The number of signal lines 53 increases, and as a result, the signal lines 53 are bulky and the wiring work is complicated.

The signal line 53 from the operation section 51 and the signal lines 53 to the LED1 and LED2 for monitor display.
However, since it is directly connected to the input terminal and the output terminal of the key input processing circuit 54, the length of the signal line 53 is limited, and there are many problems such as malfunction due to the influence of lightning surge. Was.

The present invention was devised in view of the above circumstances, and its purpose is to have excellent workability and to minimize the influence of remote operation on distance or external factors. It is intended to provide a range hood device which is excellent in usability and can be used.

[0010]

In order to achieve the above object, according to the present invention, a range hood main body having a fan motor capable of operating with a plurality of air volumes and an operation input for switching the air volume are remotely provided. In the range hood device configured to have an operation section to be performed by the above and a signal line connecting the range hood main body section and the operation section, the operation section is
The range hood main body is configured to have a transmitting unit that modulates a signal including the type of the air volume that has been input by operation using a carrier wave and that transmits the signal in series to the range hood main unit. And a control means for controlling the switching of the air volume based on the signal of (1), and a signal including the type of the air volume or the type of stop if the operating condition of the fan motor is operating, by modulating the signal using a carrier wave. And a notification means for transmitting the data in series to the unit, and when displaying the operation status, the operation unit displays the operation status of the fan motor based on the content of the notification of the operation status.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A range hood device according to the present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings.

The outer appearance of the range hood device is substantially the same as that described in the section of the conventional example, and the range hood main body 102 and the operation for remotely operating the range hood main body 102. The unit 101 and the signal line 119 that connects the range hood body 102 and the operation unit 101.

As shown in FIG. 1, the detailed construction of the operation unit 101 is an operation key unit 103 comprising switches SW1, SW2, SW3 and SW4 for controlling the amount of air flow, stopping the operation, and turning on / off the light, An LED driver 10 for driving an infrared LED (infrared light emitting diode) 109, which will be described later, and a display unit 104 for displaying the operation status of the fan by displaying LED 1 "light wind operation" and LED 2 "strong wind operation".
6, an infrared LED 107 which emits infrared rays in response to a signal from an LED driver 111, which will be described later, an infrared light receiving section 108 which receives the infrared rays and converts the infrared rays into an electric signal, and an input output signal to the operation section 101. And a control circuit 105 for processing.

On the other hand, the range hood main body 102 receives the signal output from the LED driver 106 and emits infrared rays, and an infrared LED 109, which receives the infrared rays and converts the infrared rays into electric signals. Lighting lamp 1
16, a lighting relay 113 that opens and closes the power switch 120 of the illumination lamp 116, a fan motor 117, a motor starting capacitor 118, and a weak wind relay 1 that opens and closes the power switch 121 (weak wind) of the fan motor 117.
14 and a strong wind relay 115 for opening and closing the power switch 122 (strong wind) of the fan motor 117.

Further, the range hood body 102
Is a control circuit 112 that outputs a drive signal to each of the relays 113, 114, and 115 based on a signal from the infrared light receiving unit 110, and a fan motor 117 is operating based on the output signal from the control circuit 112. The LED driver 111 for notifying a signal such as whether or not it is configured.

The operation of the range hood device will now be described. When the "weak" key (SW3) for selecting weak wind in the operation key unit 103 is turned on, the operation key signal is input to the control circuit 105. To be done. This control circuit 10
In step 5, data is assigned to this "weak" key.
This allocation is performed based on FIG. 2. According to this, since the data “81H” is allocated, this is converted into the serial signal shown in FIG. 3A.

Further, this serial signal is transmitted to the control circuit 1.
The carrier wave of the frequency of 38 KHz in FIG.
(B)). The output waveform of this modulated signal is shown in FIG. 3 (c).
The driver 106 is driven, and the output signal from the LED driver 106 is transmitted to the infrared LED 109 of the range hood body 102 via the signal line 119.

On the other hand, in the range hood body 102, the infrared LED 109 emits light according to the transmitted signal, the infrared light receiving portion 110 receives the light, converts it into an electric signal, and inputs it to the control circuit 112. The control circuit 112 demodulates and analyzes this input signal, and when this is determined to be a driving instruction to the fan motor (weak wind) 117, the control circuit 1
12 outputs a drive signal to the weak wind relay 114. Then, the weak wind relay 114 is driven, whereby the weak wind power switch 121 of the fan motor 117 is closed, and the fan motor 117 is operated in the weak wind.

When the "lighting" key is turned on in addition to the "weak" key being turned on in the operation key section 103, a signal to that effect is sent by the same operation by the signal line 11
9 is transmitted to the range hood main body 102 via 9 to drive the illumination relay 113, and the illumination power switch 120
And the illumination lamp 116 is turned on.

By the way, the range hood body 102
When the operating state of the fan is "weak wind" and the lighting is in the "lighting" state, the control circuit 112 notifies the operating unit 101 of these operating states as a monitor signal and displays corresponding data. Select based on the allocation table in 4. According to this allocation table, the data "01H" for "weak wind" operation
However, data "05H" is assigned to "lighting".

These data "01H" and data "05"
H "is 38K, similar to the signal from the operation unit 101.
Each is converted into a serial signal modulated with a carrier wave of Hz, and the LED driver 111 is driven using this signal. The output signal from the LED driver 111 is sent to the infrared LED 107 of the operation unit 101 via the signal line 119 to cause the infrared LED 107 to emit light.

In the operation section 101, the infrared LED 107
Is received by the infrared light receiving unit 108, converted into an electric signal, and input to the control circuit 105. The control circuit 112 demodulates and analyzes this, and since this is a monitor signal (data “01H”), it is determined that the fan motor 117 is operating in a weak wind, and a display signal is output to the LED 1 of the display unit 104. Then, the LED 1 is turned on to display the operation state of “during weak wind operation”. In the control circuit 112, the illumination lamp 116 receives the monitor signal (data “05H”) input subsequently.
Is determined to be in a lighting state, and predetermined processing is performed.

The operation for other air volume "strong" keys is controlled in the same manner.

Therefore, according to the above-described embodiment, the serial signal including the type of air volume is used as the control signal from the operating section 101 to the range hood body section 102, and further, from the range hood body section 2. Since the serial signal is used as the monitor signal for notifying the operating state of the fan, the number of signal lines 119 can be reduced, which facilitates the wiring and improves the workability of the construction.

Since a signal obtained by modulating a control signal with a carrier is used as the serial signal, the restriction on the length of the signal line 119 is eliminated and stable transmission can be performed even if the wiring distance becomes long. Furthermore, since the transmission circuit between the range hood main body 102 and the operation unit 101 uses elements that can be insulated on the circuit, such as the infrared LED 109 and the infrared light receiving unit 110, they are affected by external noise such as lightning surge. The usability is improved.

[0026]

As described above, according to the range hood device of the present invention, in the range hood device including the range hood main body part, the operating part and the signal line connecting them, the operating part is operated. It has a transmission means for modulating a signal including the type of the input air volume using a carrier wave and transmitting the signal in series to the range hood body portion, while the range hood body portion is based on the signal from the transmission means. Control means for controlling the switching of the air volume, etc., and if the operation status of the fan motor is operating, the type of the air volume, or a signal containing data notifying that the fan motor is stopped is modulated using a carrier wave to the operating section. And a notification means for transmitting in series,
Since the operation unit is configured to display the operation status of the fan motor based on the notification contents of the above operation status, it is possible to reduce the number of signal lines between the operation unit and the range hood main body, and the workability of wiring work can be reduced. And an excellent effect such as the restriction on the length of the signal line is eliminated.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a range hood device according to an embodiment of the present invention.

FIG. 2 is a diagram showing an assignment table when assigning codes according to the type of input key.

3A is a diagram showing a waveform of a serial signal generated by a control circuit, FIG. 3B is a waveform of a carrier wave that modulates the serial signal, and FIG. 3C is a diagram showing a waveform of a modulated output signal. is there.

FIG. 4 is a diagram showing a code allocation table for operating conditions of the range hood main body.

FIG. 5 is an external view of a range hood device.

FIG. 6 is a configuration diagram of a conventional range hood device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Operation part 2 Range hood main body 3 Signal line 11, 19 Notification means (fan motor monitor relay,
OR circuit) 105,112 Control means (control circuit) 105,106 Transmission means (control circuit, LED driver) 111,112 Notification means (control circuit, LED driver)

Claims (1)

[Claims] 1. A range hood main body having a fan motor capable of operating with a plurality of air volumes, an operation section for remotely performing an operation input such as air volume switching, and the range hood main section and the operation section are connected. In the range hood device configured by including a signal line, the operation unit modulates a signal including the type of the air volume that has been input by operation using a carrier wave, and transmits the signal in series to the main unit of the range hood. The range hood main body is configured to include means, and the range hood main body may be configured to control the air volume switching based on the signal from the transmitter, and the operating condition of the fan motor. And a notification means for modulating a signal including the type of the air volume or the type of stoppage using a carrier wave and transmitting the signal serially to the operation unit, and the operation unit displays the operation state when displaying the operation status. A range hood device, which displays the operation status of a fan motor based on the notification content of the status.