JP3524872B2 - Heating and ventilation equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a heating device and a ventilation device. More specifically, the present invention relates to a technique for starting or stopping the operation of a ventilation device in conjunction with the start or stop of heating of a heating device.

[0002]

2. Description of the Related Art There is known a technique for starting or stopping the operation of a ventilation device in association with the start or stop of heating of a heating device. In order to realize this technology, a conventional heating device includes a detection unit that detects the start or stop of heating, and an emission unit that emits an infrared signal that starts or stops the operation of the ventilation device toward the ventilation device. And when the detection unit detects heating start or heating stop (hereinafter referred to as "heating start / stop detection"), the transmission unit sends an infrared signal that activates the ventilation device or an infrared signal that deactivates the ventilation device. Is equipped with. Also,
The ventilator is provided with an infrared signal receiving unit, and starts its operation when it receives an infrared signal for starting the ventilator, and stops its operation when it receives an infrared signal for stopping the ventilator. Since an infrared signal is used in this kind of interlocking technique, it is necessary to prevent the passage route of the infrared signal from being blocked so as to prevent the transmission and reception of the infrared signal from being interrupted.
Therefore, a method of providing a transmitter on the upper surface of the heating device has been proposed. In this method, the infrared signal emitted upward from the heating device directly reaches the receiving portion of the ventilation device. On the other hand, there has been proposed a system in which a transmitter is provided on the front surface of the heating device. In this method, an infrared signal transmitted forward from the transmitter hits an operator or the like in front of the heating device and is reflected, and the reflected infrared signal reaches the receiver of the ventilation device.

[0003]

In the case of the conventional heating device, in order to emit an infrared signal from the transmitting unit only once when the start / stop of heating is detected, any method of providing the transmitting unit on the upper surface or the front surface of the heating apparatus may be used. , Poor transmission / reception may occur. In the method in which the transmitter is provided on the top surface of the heating device, when the operator leans forward and the operator's head is located above the heating device when heating start / stop is detected, or when the operator is above the heating device. When the arm is extended, the infrared signal transmitted when the start / stop of heating is detected may be blocked by the operator's head or arm and may not reach the receiving portion of the ventilation device. In addition, in the method in which the transmitter is provided on the front surface of the heating device, the infrared signal is not properly reflected and does not reach the receiver of the ventilation device unless the operator is at the expected position when the heating start / stop is detected. is there.

According to the present invention, even when the operator is temporarily in a position or posture that temporarily interrupts the emission and reception of infrared signals at the time of detecting the start / stop of heating, the infrared signals are reliably emitted between the heating device and the ventilation device. The purpose is to realize a technology that enables reception.

[0005]

Means for Solving the Problems, and Actions and Effects A heating device according to the present invention detects a heating start or a heating stop, and an infrared signal or an operation stop for starting the operation of the ventilation device toward the ventilation device. A transmitting unit that transmits an infrared signal, a timer that measures the elapsed time from when the detection unit detects heating start or heating stop, and ventilation to the transmission unit when the detection unit detects heating start or heating stop. An infrared signal for receiving the infrared signal and an emission control unit for transmitting the infrared signal for starting the operation of the device or the infrared signal for stopping the operation and for retransmitting the same infrared signal to the transmission unit when a predetermined elapsed time is measured by the timer
Equipped with a receiving unit that receives the reply signal transmitted from the ventilation device
Get Then, the above-mentioned transmission control unit returns to the above-mentioned receiving unit.
Stop retransmitting infrared signal when signal received
To do. Here, the "heating device" includes a gas stove, a gas stove, an electric stove, a microwave oven, a small water heater, and the like. Further, the “transmitter” may be provided on the front surface of the heating device, on the upper surface, or on other side surfaces. "To the ventilation device" includes a case of directing and a case of utilizing reflection. Also,
The "predetermined elapsed time" is preferably between 3 and 5 seconds.

According to the heating device of the present invention, when the start or stop of heating is detected (when the start / stop of heating is detected)
Even if the operator temporarily takes a position or posture that interrupts the transmission and reception of infrared signals, the infrared signal is retransmitted when a predetermined time has elapsed from the start / stop detection of heating. Infrared signals can be reliably transmitted and received between the devices.

It is preferable that the transmission control unit keeps re-transmitting the same infrared signal every predetermined time even after measuring the predetermined elapsed time. Here, the transmission time intervals of the infrared signals may be all the same or may change with time.

According to the heating device of the present invention, even when the operator temporarily moves to a position where the transmission and reception of the infrared signal is hindered at the time of starting or stopping the heating, the time from the start of the heating or the stop of the heating is reduced. Since the infrared signal is repeatedly transmitted again at intervals, the infrared signal can be transmitted and received more reliably between the heating device and the ventilation device.

The present invention also provides a novel ventilation system.
This ventilation device receives the infrared signal transmitted from the heating device, and the receiving part on the ventilation device side, and when this infrared receiving device receives the infrared signal, sends a reply signal to the heating device.
Equipped with a ventilator side transmitter that transmits the .

It should be noted that the above-mentioned ventilation device is a reception device on the ventilation device side.
After receiving the infrared signal, the heating device
Reception control that disables reception of the same infrared signal that is redistributed
It may have a control unit. According to the ventilation device of the present invention, after the infrared signal is once received, the reception of the infrared signal re-transmitted from the heating device after that is invalidated, so that the power consumption accompanying the reception can be reduced. Further, in a ventilation device that emits a buzzer sound upon reception, there is an advantage that duplication of the buzzer sound can be prevented.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the present invention will be described with reference to the drawings. First, configurations of a gas stove (an example of a heating device) and a range hood (an example of a ventilation device) according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a front view of a gas stove and a range hood according to the present embodiment, and FIG. 2 is a side view thereof. FIG. 1 shows a gas stove 22 incorporated in a cabinet 29 and a range hood 30 installed above the gas stove 22.
It is shown. The gas stove 22 includes a first stove portion 24a on the left side of the upper part of the stove body 23 and a second stove portion 24b on the right side of the upper part. A third stove portion 24c (see FIG. 2) is provided behind the first stove portion 24a and the second stove portion 24b. Stove body 2
A roaster portion 24d is provided at the center of the front surface of the sheet 3. To the left from the center of the front of the stove body 23,
An ignition / fire extinguishing switch 26a of the first stove portion 24a and an ignition / fire extinguishing switch 26c of the third stove portion 24c are provided. An ignition / fire extinguishing switch 26d of the roaster portion 24d and an ignition / fire extinguishing switch 26b of the second stove portion 24b are provided on the right side of the front surface of the stove body 23. A remote switch 25 is provided below the ignition / fire extinguishing switch 26b of the second stove portion 24b to start and stop the operation of the range hood 30 independently of the operation of the ignition / extinguishing switch 26. . On the upper part of the front of the stove body 23, there are two transmitters 28a, 2
8b is provided. Here, the first transmitting unit 28a is provided on the left side from the center, and the second transmitting unit 28a is provided.
b is provided on the right side from the center. The range hood 30 includes a ventilation fan 36 provided inside the hood body 31, a first receiving portion 33 provided at the center of the lower front surface of the hood body 31, and a juxtaposed right side of the first receiving portion 33. The operation unit 32 and the second receiving unit 35 provided on the back side of the hood body 31 (see FIG. 2) are provided.

Next, the configuration of transmitting and receiving an infrared signal between the gas stove 22 and the range hood 30 according to this embodiment will be described with reference to FIG. FIG. 3 is a diagram showing a configuration of transmitting and receiving infrared rays between the gas stove and the range hood according to the present embodiment. As shown in FIG. 3, inside the gas stove 22, each of the ignition / extinguishing switches 26a to 26a shown in FIG.
The micro switches (MS) 27a to 27d corresponding to d are connected to the switch detection unit 40. In the switch detection unit 40, any one of the micro switches 27a to 27d is turned on (the circuit including the switch detection unit 40 and the micro switch 27 is in a closed state), or the micro switches 27a to 27d. Can be detected (the circuit formed by the switch detection unit 40 and the micro switch 27 is in an open state). That is, when the heating of any one of the stove sections 24a to 24c and the roaster section 24d is started, or when the heating of all the stove sections 24a to 24c and the roaster section 24d is stopped, the heating is stopped. Can be detected. The switch detector 40 is connected to the transmission controller 42.
This transmission control unit 42 has two transmission LEDs connected in parallel.
44a, b (an example of an infrared light emitting element). The transmitting LED 44a is provided on the first transmitting unit 28a shown in FIG. 1, and the transmitting LED 44b is on the second transmitting unit 28b.
It is provided in. . The transmission control unit 42 includes an oscillation circuit (not shown) and the like. As shown in an operation example described later, the operation signal or the stop signal of the ventilation fan 36 is transmitted from the transmission LEDs 44a and 44b to the infrared rays and transmitted as an infrared signal. . The operation signal and the stop signal are pulse signals having different patterns. Also, the transmission control unit 42
Is connected to a timer 43 and uses a dry battery 45 as a power source.

Inside the range hood 30, a transmission LED is provided.
Two receiving LEs for receiving infrared signals from 44a and 44b
D48a, b (an example of an infrared light receiving element) are connected in parallel. The reception LED 48a is the first reception unit 3 shown in FIG.
3, the receiving LED 48b is provided on the second receiving unit 3
5 is provided. These reception LEDs 48a and 48b are connected to the reception control unit 52. This reception control unit 52
A buzzer 53 is connected to the. Also, the reception control unit 5
Reference numeral 2 takes out an operation signal or a stop signal from the infrared signal and outputs a motor control signal which is a pulse signal having a pattern corresponding to each signal. This motor control signal is transmitted to the motor control unit 56 connected to the reception control unit 52. The motor control unit 56 is connected to the motor 58, and is also connected to an external commercial power source 57. The motor control unit 56 responds to the received motor control signal by the motor 5
8 is driven and stopped. The motor 58 is connected to the ventilation fan 36, and the operation of the ventilation fan 36 is started / stopped according to the driving / stopping of the motor 58.

(First Operation Example) Next, a first operation example of the gas stove 22 and the range hood 30 according to this embodiment will be described mainly with reference to FIGS. 4 and 5. FIG. 4 is a flowchart showing a first operation example of the gas stove according to the present embodiment,
FIG. 5 is a flowchart showing an operation example of the range hood. First, the operation of the gas stove 22 will be described. First, when any one of the stove portions 24a to 24c or the roaster portion 24d of the gas stove 22 shown in FIG. 1 is ignited, that is, the microswitch (M
(S) When any one of 27a to 27d is turned on, this is detected by the switch detection unit 40 of the gas stove 22 (step S10). Then, the switch detection unit 40 sends a heating start detection signal, which is a pulse signal having a unique pattern, to the transmission control unit 42. Transmission control unit 4 receiving this signal
2 transmits two "inside" operation signals of the ventilation fan 36 to infrared rays to generate two emission LEDs 44a, 44b (two emission units 28a,
It is controlled so that the call is transmitted from b) (step S2).
0). That is, first, an infrared signal (operation signal) is transmitted when heating start is detected. After that, the timer 43 connected to the transmission control unit 42 measures the time from when it is detected that any one of the micro switches 27a to 27d is turned on (when the heating start is detected). Then, when the time period exceeds 3 seconds (step S30), the transmission control unit 42 again controls the infrared transmission of the "medium" operation signal of the ventilation fan 36 so that the two transmission LEDs 44a and 44b transmit the signals (step S30). S40). That is, 3 from the start of heating detection
After a lapse of seconds, the infrared signal (operation signal) is retransmitted. Even if a certain microswitch is turned on, if there is at least one other microswitch already turned on,
The "medium" driving signal is not transmitted (step S10). This is the ventilation fan 3 when the other micro switch is turned on.
This is because it is assumed that the ventilation fan 36 is already operating when a certain micro switch is turned on because the "medium" operation signal 6 is transmitted.

After that, all the stove sections 24a shown in FIG.
~ C or when the fire extinguishing operation of the roaster portion 24d is performed,
That is, the microswitch (MS) 27a shown in FIG.
When all of d are turned off, this is the switch detection unit 4
0 is detected (step S50). Then, the switch detection unit 40 sends a heating stop detection signal, which is a pulse signal having a unique pattern, to the transmission control unit 42. The transmission control unit 42 that has received this signal controls the ventilation fan 36 so that the stop signal of the ventilation fan 36 is placed on infrared rays and transmitted from the two transmission LEDs 44a and 44b (two transmission units 28a and 28b) (step S60). That is, first, an infrared signal (stop signal) is transmitted when heating stop is detected. After that, the timer 43 connected to the transmission control unit 42 detects the microswitches 27a to 27d.
When it is detected that all of the are off (when heating stop is detected)
To measure the time from. Then, when that time exceeds 3 seconds (step S70), the transmission control unit 42 again puts the stop signal of the ventilation fan 36 on the infrared rays and outputs two transmission LEs.
Control is performed so that the call is transmitted from D44a, D44 (step S80). That is, the infrared signal (stop signal) is retransmitted after 3 seconds have elapsed from the detection of the heating stop. Even if a certain micro switch is turned off, if at least one other micro switch is turned on, the stop signal is not transmitted (step S50). This is because even if a certain micro switch is turned off, if the other micro switch is turned on, the operation of the stove section corresponding to the other micro switch is continued, so that it is not possible to stop the ventilation fan 36. Because it is appropriate.

Next, the operation of the range hood 30 will be described. Reception LED 48a or 4 of range hood 30
When the infrared signal is received by 8b (step S110),
The reception control unit 52 determines whether the infrared signal is a "medium" operation signal or a stop signal (step S12).
0). If the infrared signal is the "medium" operation signal, it is determined whether the ventilation fan 36 is already in the "medium" operation.
It is determined by 2 (step S130). Ventilation fan 36
If the "medium" has not been operated yet, the reception control unit 52 should make the reception buzzer sound "beep" with the buzzer 53.
Control (step S140). Then, the motor control signal corresponding to the "medium" operation signal is transmitted to the motor control unit 56 to drive the motor 58, thereby starting the "medium" operation of the ventilation fan 36 (step S15).
0). On the other hand, when the ventilation fan 36 is already in the "medium" operation (step S130), the reception LEDs 48a and 48b are received.
The "medium" operation signal received in step S16 is invalidated (step S16).
0), the reception buzzer does not sound.

On the other hand, if the infrared signal received by the receiving LEDs 48a, 48b is a stop signal (step S1)
20), the reception control unit 52 determines whether the ventilation fan 36 is already stopped (step S170). If the ventilation fan 36 is not stopped yet, the reception control unit 52 causes the buzzer 53 to make a beep sound.
Control (step S180). Then, the motor control signal corresponding to the stop signal is transmitted to the motor control unit 56 to drive the motor 58 to stop the "medium" operation of the ventilation fan 36 (step S190).
On the other hand, when the ventilation fan 36 is already stopped (step S170), the stop signal received by the reception LEDs 48a and 48b is invalidated (step S200), and the reception buzzer sound is not emitted.

When the range hood 30 is operated in this manner, it is possible to prevent the reception buzzer sound of the same infrared signal (a driving signal if the infrared signal received first is a driving signal, and a stop signal if it is a stop signal) from being duplicated. it can. That is, since the reception buzzer sounds only when the ventilation fan 36 is first started or stopped, the operator 6
The value 0 indicates the time when the operation of the ventilation fan 36 is started or stopped.

According to the first operation example, when the operator 60 is located within the irradiation range of the infrared signal from the transmitter 28 at the time of detecting the start / stop of heating, the infrared signal transmitted is the operator. Hit 60. The infrared signal that hits the operator 60 is reflected and emitted toward the range hood 30 above the gas stove 22. And the range hood 30
When the infrared signal is received by the first receiving section 33 provided in the center of the front surface of the vehicle or the second receiving section 35 provided inside, the operation of the ventilation fan 36 is started or stopped by the above-mentioned transmitting and receiving configuration. It In addition, the operator 60 can change from the irradiation range of the infrared signal transmitted when the start / stop of heating is detected.
Even if is temporarily off, the infrared signal is transmitted again 3 seconds after the start / stop of heating is detected. Therefore, if the operator 60 is located in the irradiation range of the infrared signal at that time, it is transmitted. The infrared signal strikes the operator 60. The infrared signal that hits the operator 60 is reflected and emitted toward the range hood 30 above the gas stove 22,
When received by the first receiving unit 33 or the second receiving unit 35, the operation of the ventilation fan 36 is started or stopped by the above-described transmitting / receiving configuration. Even if the operator 60 is temporarily out of the irradiation range of the infrared signal, the operator 6
0 is an ignition / extinguishing switch 2 provided on the stove body 23
It is certain that 6 is operated, and since it is unlikely that it will remain stationary at that position, it is possible to retransmit the infrared signal after 3 seconds, which is the approximate time required for ignition or fire extinguishing operation. For example, it is assumed that the infrared signal hits the operator 60 with a fairly high probability.

As described above, according to the first operation example, even when the operator 60 is temporarily in a position or posture that hinders the transmission and reception of the infrared signal at the time of detecting the start / stop of heating, the start / stop of the heating is detected. Since the infrared signal is retransmitted after 3 seconds have elapsed, the infrared signal can be reliably transmitted and received between the gas stove 22 and the range hood 30. That is, it is possible to reliably start or stop the operation of the ventilation fan 36 of the range hood 30 that is interlocked with the ignition / extinguishing switch 26 of the gas stove 22.

(Second Operation Example) Next, a second operation example will be described mainly with reference to FIG. FIG. 6 is a flowchart showing a second operation example of the gas stove according to this embodiment. The second operation example is a modification of the first operation example, and differs from the first operation example in the following points. In the second operation example, the "medium" operation signal of the ventilation fan 36 is transmitted at the time of detecting the start of heating (step S20), and then the "medium" operation signal is transmitted again 3 seconds after the start of heating is detected (step S30). The operation of making a call (step S40) is repeated three times (step S4).
2). Similarly, after the stop signal of the ventilation fan 36 is transmitted when the heating stop is detected (step S60), the operation of transmitting the stop signal again after 3 seconds (step S70) after the detection of the heating stop (step S80) is performed. Repeatedly (step S82). The operation of the range hood 30 is the same as the operation shown in FIG. 5 described in the first operation example.

According to the second operation example, even if the operator 60 is temporarily in a position or posture that interrupts the transmission and reception of infrared signals at the time of detecting the start / stop of heating, every 3 seconds from the start / stop detection of heating. Since the infrared signal is re-transmitted three times to, the infrared signal can be more reliably transmitted and received between the gas stove 22 and the range hood 30. That is, it is possible to more reliably start or stop the operation of the ventilation fan 36 of the range hood 30 that is linked to the ignition / extinguishing switch 26 of the gas stove 22. In the second operation example, the infrared signal is transmitted once when the heating start / stop is detected and three times every three seconds from that time, a total of four times. In this case, a receiving unit is further provided on the upper surface of the stove body 23 of the gas stove 22, and a transmitting unit is further provided in the range hood 30 for bidirectional communication. When the range hood 30 receives an infrared signal, a reply signal is transmitted. If the transmission of the infrared signal from the gas stove 22 is stopped when the gas stove 22 receives this reply signal, the number of times the infrared signal is transmitted can be reduced and power consumption can be suppressed. This form is particularly useful in the case of the gas stove 22 using the dry battery 45 (see FIG. 3) as shown in this embodiment.

(Third Operation Example) Next, a third operation example will be described mainly with reference to FIG. FIG. 7 is a flowchart showing a third operation example of the gas stove according to this embodiment.
The third operation example is a modification of the second operation example, and differs from the second operation example in the following points. In the third operation example, the "medium" operation signal of the ventilation fan 36 is transmitted at the time of detecting the start of heating (step S20), and then the "medium" operation signal is transmitted again 3 seconds after the start of heating is detected (step S30). The operation of transmitting (step S40) is repeated until all the micro switches 27 are turned off (when heating stop is detected) (step S5).
0). However, regarding the stop signal, as in the second operation example, after 3 seconds have elapsed from the time when the heating stop was detected (step S70).
The operation of transmitting the stop signal again (step S80) is repeated three times (step S82). The operation of the range hood 30 is the same as the operation shown in FIG. 5 described in the first operation example.

According to the third operation example, the operation of transmitting the "medium" operation signal again is repeated until all the microswitches 27 are turned off (when the heating stop is detected). Even if has been in a position or posture that obstructs the transmission and reception of infrared signals for a long period of time, it is possible to reliably transmit and receive infrared signals between the gas stove 22 and the range hood 30. In the case of the third embodiment as well, bidirectional communication can significantly reduce power consumption. Further, if the gas stove 22 is powered by a commercial power source, it is not necessary to replace the battery. Therefore, even if a little more power is consumed, the demerit due to this is lessened.

As described above, the gas stove 2 according to the embodiment of the present invention
2 and the range hood 30 have been described, the present invention is not limited to the above-described embodiments at all, and various modifications and improvements can be made based on the knowledge of those skilled in the art.

[Brief description of drawings]

FIG. 1 is a front view of a gas stove and a range hood according to the present embodiment.

FIG. 2 is a side view of the gas stove and the range hood according to the present embodiment.

FIG. 3 is a diagram showing a configuration of transmitting and receiving infrared rays between a gas stove and a range hood according to the present embodiment.

FIG. 4 is a flowchart showing a first operation example of the gas stove according to the present embodiment.

FIG. 5 is a flowchart showing an operation example of the range hood according to the present embodiment.

FIG. 6 is a flowchart showing a second operation example of the gas stove according to the present embodiment.

FIG. 7 is a flowchart showing a third operation example of the gas stove according to the present embodiment.

[Explanation of symbols]

22: gas stove (an example of a heating device) 23: stove main body 24: stove section 25: remote switch 26: ignition / fire extinguishing switch 27: micro switch 28: transmitter, 28a: first transmitter, 28b: second transmitter 29 : Cabinet 30: Range hood (an example of ventilation device) 31: Hood main body 32: Operation part 33: First reception part 35: Second reception part 36: Ventilation fan 40: Switch detection part 42: Transmission control part 44a, b: Transmitting LED (an example of an infrared ray emitting element) 48a, b: Receiving LED (an example of an infrared ray receiving element) 52: Reception control section 53: Buzzer 56: Motor control section 58: Motor 60: Operator

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuo Saito 2-9 Fuchinobe, Sagamihara-shi, Kanagawa Fuji Kogyo Co., Ltd. (56) Reference JP-A-5-3585 (JP, A) 60-23637 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F24F ^7/ 00-7/06

Claims (2)

(57) [Claims] 1. A detection unit for detecting the start or stop of heating, an emission unit for transmitting an infrared signal to the ventilation device to start the operation of the ventilation device or an infrared signal to stop the operation of the ventilation device, and the detection unit to start heating or A timer for measuring the elapsed time from the time when the heating stop is detected, and an infrared signal for starting the operation of the ventilation device or an infrared signal for stopping the operation of the ventilator when the heating start or the heating stop is detected by the detection part. Along with the transmission control unit that retransmits the same infrared signal to the transmission unit when a predetermined elapsed time is measured by the timer, and the ventilation device that receives the infrared signal.
And a receiving unit for receiving a reply signal transmitted from the device , wherein the transmission control unit receives the reply signal at the receiving unit.
And a heating device characterized by stopping the retransmitting of the infrared signal . 2. Infrared emitted from the heating device according to claim 1.
When the infrared ray signal is received by the ventilation device side receiving part that receives the line signal and the ventilation device side receiving part ,
A ventilation device for transmitting a reply signal to the heating device according to claim 1.
Ventilator equipped with a stationary transmitter.