JPH11294811A - Interlocking controller for ventilating fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide such an interlocking control function to a ventilating fan that can surely make the ventilating fan start operation when a gas cooking stove, etc., is ignited. SOLUTION: A motor 12 for driving a ventilating fan 11 can be operated at a high or low rotating speed when 'strong' or 'weak' is designated by operating a manual operation switch 15. When connectors 13 and 14 are removed and an interlocking adapter 10 is inserted between the connectors 13 and 14, a control circuit 20 is interposed between the connectors 13 and 14 and the motor 12 is operated at a low speed, and then, the fan 11 is driven in the 'weak' when the interlock signal received by means of a receiving unit 21 instructs the operation of the motor 12 even when the switch 15 does not designate the operation of the motor 12. When the ventilation is insufficient, the ventilation can be increased by operating the motor 12 at the high rotating speed by designating the 'strong' from the manual operation switch 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for interlocking a ventilation fan for operating a ventilation fan provided in the vicinity of a cooking appliance for heating in cooperation with the cooking appliance for heating.

[0002]

2. Description of the Related Art Ventilation fans are provided in cooking utensils for heating, especially kitchens and kitchens used for cooking by burning fuel such as gas. Burning gas or the like for cooking consumes oxygen in the air and requires ventilation. When houses and the like are highly sealed, natural ventilation alone becomes insufficient, and forced ventilation is required.

[0003] Cooking in a kitchen or the like is often performed at a specific time during a day. In particular, when preparing a meal or the like, the heating power of the heating cooker is maximized. Further, the cooking device may be used in a state where the heat is relatively weak, such as cooking for a long time with a so-called low heat or boiling water. Considering the use state of the heating cooking device, it is preferable that the ventilation can be switched between high and low.

FIG. 4 shows a schematic electric configuration of a switchable ventilation fan 1 whose operating state is strong and weak. The fan drive motor 2 has a high connection terminal H, a low connection terminal L, and a common connection terminal COM so that the rotation speed can be switched between high and low. A connector 3 is provided at an end of a conductive line connected to the three terminals H, L, and COM. The connector 4 is detachable from the connector 3. With the connectors 3 and 4 connected, the high and low connection terminals H and L of the fan drive motor 2 are connected to the strong and weak switching terminals of the manual operation switch 5, respectively. A common terminal for the strong and weak switching terminals of the manual operation switch 5 and a common connection terminal COM of the fan drive motor 2 with the connectors 3 and 4 connected are connected to a commercial power source 6 such as 100 V AC. Is done.

When a ventilation fan 1 as shown in FIG. 4 is used, when the heating process is not performed in a kitchen or the like, the manual operation switch 5 must be stopped in both strong and weak states, and the ventilation fan 1 is kept stopped. Can be. When the manual operation switch 5 is turned on to the weak side, the fan driving motor 2 is driven at a low rotation speed, and the ventilation fan 1 can be operated with a small air volume. When the manual operation switch 5 is turned on to the high side, the fan driving motor 2 is driven at a high rotation speed, and the ventilation fan 1 can be operated with a large air volume. When the ventilation fan 1 is operated with a large air volume, the noise generated by the fan increases. Therefore, when the necessity of ventilation is not large, the manual operation switch 5 is switched to the weak side to enable a quiet operation, and only the strong It is possible to improve the comfort and save energy as compared with the case of the driving.

[0006]

Even if the ventilation fan 1 whose operation state can be switched between strong and weak as shown in FIG. 4, if operation is stopped when ventilation is not required, noise and energy consumption will be reduced. Is preferred. However, if the ventilation fan 1 is stopped, the manual switch 5 must be operated to perform weak or strong operation when ventilation is required. Since the manual operation switch 5 must be operated independently of the heating cooking device or the like, when the heating cooking needs to be performed in a hurry, the manual operation switch 5 is turned on to operate the ventilation fan 1. There is a risk of forgetting. Further, it is very troublesome to operate the manual operation switch 5 when busy with cooking or the like.

[0007] It is an object of the present invention to provide a ventilating fan interlocking control device that can easily operate a ventilating fan in conjunction with the use of, for example, a cooking device for heating.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a ventilating fan interlocking control device in which the operation of a fan driving motor is controlled in accordance with the operation of a manual operation switch, and a receiving means for receiving an external interlocking signal. And between the manual operation switch and the fan drive motor, and in response to the output of the reception means and the manual operation switch, at least one of the interlock signal or the manual operation switch operates the ventilation fan. And control means for controlling the fan drive motor to operate when instructed.

According to the present invention, when the receiving means receives an external interlocking signal, the control means inserted between the manual operation switch and the fan driving motor controls the fan in accordance with the interlocking signal and the instruction of the manual operation switch. Controls the operating state of the drive motor. Even if the manual operation switch instructs stop, the fan drive motor can be operated if the interlocking signal instructs operation of the fan drive motor. If the interlocking signal given to the receiving means is linked to the ignition state of, for example, a cooking device, when the cooking device for heating or the like needs ventilation in a combustion state, the ventilation fan is automatically operated to provide the necessary ventilation. Can be done.

In the ventilating fan according to the present invention, a connector for making an electrical connection is provided between the manual operation switch and the fan driving motor, and the receiving means and the control means include: As an interlocking adapter,
The fan is inserted between the manual operation switch side from which the connector is disconnected and the fan drive motor side.

According to the present invention, the connector provided for making an electrical connection between the fan drive motor of the ventilation fan and the manual operation switch is removed, and the manual operation switch is used as the receiving means and the control means as an interlocking adapter. The interlocking function can be added without remodeling the ventilation fan because it is inserted between the connector on the side and the fan drive motor side connector.

Further, in the present invention, the manual operation switch includes:
The strength of the operation of the fan drive motor can be switched to a plurality of stages, the interlocking signal, the operation of the ventilation fan,
The controller can instruct a predetermined weak stage among the plurality of stages, and the control means stops the manual operation switch or is weaker than the weak stage when the operation of the weak stage is instructed by the operation signal. When the step is instructed, control is performed such that the fan driving motor is operated at the weak stage, and when the manual operation switch indicates a stage stronger than the weak stage, the fan driving motor is operated at the stage of the instruction. I do.

According to the present invention, the operation of the motor for driving the fan of the ventilation fan can be switched between a plurality of levels. The interlocking signal can instruct the operation of the ventilation fan at a predetermined weak stage among a plurality of stages. The control means, when the operation of the ventilation fan in the weak stage is instructed by the interlocking signal, when the manual operation switch is stopped or instructs the operation of the weaker stage than the weak stage, the weak stage indicated by the interlocking signal Since the ventilation fan can be operated, if the weak operation is instructed in conjunction with the ignition of the cooking device, the weak operation can be automatically started even when the ventilation fan is stopped. If the operation state of the stronger stage than the weak stage instructed by the interlock signal from the manual operation switch is indicated, the ventilation fan can be operated in the instructed operation state,
Control can be performed to manually further increase the air flow as needed for ventilation.

[0014]

FIG. 1 shows an electric configuration for controlling a ventilation fan 11 using an interlock adapter 10 of a control device for interlocking a ventilation fan according to an embodiment of the present invention. Ventilation fan 11
The fan drive motor 12 has a high connection terminal H for high-speed rotation, a low connection terminal L for low-speed rotation, and a common connection terminal COM, similarly to the fan drive motor 2 shown in FIG. Three conductive wires are led out of the three connection terminals H, L, and COM, and their ends are connected to the connector 13. A connector 14 is detachable from the connector 13 and can be electrically connected to a power supply 16 via a manual operation switch 15 with the connectors 13 and 14 attached. The manual operation switch 15 and the power supply 16 are equivalent to the manual operation switch 5 and the power supply 6 in FIG.

The interlocking adapter 10 of this embodiment is configured such that the connectors 13 and 14 of the ventilation fan 11 are disconnected and the connector 13 on the fan driving motor 12 side and the manual operation switch 15 are connected.
Between the connector 14 on the side. Interlock adapter 1
At 0, a control circuit 20 and a receiving unit 21 are provided. The control circuit 20 controls the ventilation fan 1 via the connector 23.
It is electrically connected to the connector 13 on the side of the fan drive motor 12 and to the connector 14 on the side of the manual operation switch 15 via the connector 24.

The control circuit 20 includes an OR circuit 25, logical inverting circuits 26 and 27, and an AND circuit 28. The OR circuit 25 is a two-input OR gate. As one input, a weak-side switching output of the manual operation switch 15 is given via the connector 24 and the connector 14. The other input terminal of the OR circuit 25 is provided with a logical output of the interlocking signal received by the receiving unit 21.
The interlocking signal is provided, for example, as an infrared signal. At a low level, the operation of the ventilation fan 11 is stopped, and at a high level, the ventilation fan 11 is operated in a weak state. The switching output on the strong side of the manual operation switch 15 is supplied to the logic inversion circuit 26 as an inverter via the connector 24 and the connector 14. The output of the logic inversion circuit 26 is input to another logic inversion circuit 27 and applied to the high-speed operation terminal H of the fan drive motor 12 via the connector 23 and the connector 13. The output of the AND circuit 28 is provided to the low connection terminal L of the fan drive motor 12.
The AND circuit 28 is a two-input AND gate. One of the inputs is supplied with the output of the logical inversion circuit 26, and the other of the inputs is supplied with the output of the OR circuit 25. The common terminal of the manual operation switch 15 is connected to one output of the power supply 16. Common connection terminal COM of fan drive motor 12
Is connected to the other output of the power supply 16 via the connector 13, the connector 23, the connector 24 and the connector 14.

Although the control circuit 20 is shown as a logic circuit in which a power supply system of AC 100 V and a signal circuit from the receiving unit 21 are integrated, the OR circuit 25, the logical inversion circuits 26 and 27, and the logical product Circuit 2
8 can be realized by an electromagnetic relay,
Integration of V and the signal circuit is also possible. When the control circuit 20 is realized by a semiconductor integrated circuit or a microcomputer, the output of the logic inversion circuit 27 and the AND circuit 28 of the logic circuit shown as the control circuit 20 is used to control the light from the electromagnetic relay or solid state relay to the SSR. May be controlled so as to energize or cut off 100 V AC.

FIG. 2 shows an interlocking adapter 1 as shown in FIG.
0 is used for the ventilation fan 11 near the gas stove 30 such as a home kitchen. Gas stove 3
0 is provided with an extinguishing safety device as shown in FIG. 3, the electromagnet 33 in the solenoid valve unit 32 is excited by the thermoelectromotive force of the thermocouple 31. As shown in FIG. 3A, when the tip of the thermocouple 31 is heated, a thermoelectromotive force corresponding to the temperature is generated, and the electromagnet 33
And the iron piece 34 can be attracted. The iron piece 34 is provided at one end of the safety valve 35. When the ignition button of the gas stove 30 is pressed and the safety valve 35 is pressed toward the electromagnet 33 with the push rod 36, the supply of gas is started and the ignition is enabled. . When the gas is ignited by the ignition mechanism, a pilot flame 37 is also generated at the same time, and the tip of the thermocouple 31 is heated. Iron piece 34 from thermocouple 31 to electromagnet 33
When a thermoelectromotive force capable of adsorbing the gas is generated, even if the ignition button or the like of the gas stove 30 is released and the push rod 36 returns to separate from the tip of the safety valve 35, the safety valve 3
The iron piece 34 of No. 5 remains attracted to the electromagnet 33, and the safety valve 35 keeps the gas supply passage open.

When cooking gas is cooked in the gas stove 30 and the broth or the like is blown out and the gas flame is extinguished, the pilot flame 37 is extinguished and the thermocouple 31 is not heated. As shown in FIG. 3B, if the thermocouple 31 is not heated, the excitation of the electromagnet 33 stops,
The adsorption force on the iron piece 34 also disappears. Safety valve 35
Is biased by a spring in a direction to close the gas supply passage, so that when the iron piece 34 cannot be attracted by the electromagnet 33, it is displaced so as to block the gas passage.

The extinguishing safety device as shown in FIG. 3 can also be used as a sensor for detecting whether the gas stove 30 is ignited or digested based on the output of the thermocouple 31. Therefore, the thermoelectromotive force output from the thermocouple 31 is electrically processed by the ignition detection circuit 38. If the ignition is detected, a light-emitting diode 39 generates an interlocking signal, for example, by infrared rays. The ventilation fan 11 of FIG. 1 can be operated reliably.

Returning to FIG. 2, the ventilation fan 11 is
It is arranged in a range hood 40 provided above zero. Part of the gas stove 30 is provided with a portion for taking out an infrared output of the light emitting diode 39 in FIG. 3, and can provide an interlocking signal to the receiving unit 21 in the interlocking adapter 10 by infrared rays. When the interlocking signal is given wirelessly, such as infrared rays or radio waves, the possibility of obstructing the cooking operation is less than when the interlocking signal is sent via a wire such as an interlocking line or an optical fiber.

In the ventilation fan 11 shown in FIG. 1, the rotation speed of the fan drive motor 12 can be switched between two stages of high rotation and low rotation, but it is also conceivable to switch the rotation speed to more stages. For example, it is possible to continuously change the rotation speed of the fan driving motor from the stop state to the maximum capacity state by using an inverter or the like, while using a plurality of fans and the fan driving motor 12 to adjust the air flow rate. Can be switched.
Also in such a case, the interlocking signal received by the receiving unit 21 can specify not the maximum ventilation volume of the ventilation fan 11 but the ventilation volume of a certain weak stage by the interlocking signal. As shown in FIG. 1, when the fan drive motor 12 can be switched to two levels of strong or weak by the manual operation switch 15, the weak drive of the fan drive motor 12 is performed from the light emitting diode 39 on the gas stove 30 side. The interlocking signal to be instructed can be derived by infrared rays. If more stages can be switched, or if the strength can be switched continuously using an inverter, etc., the interlocking signal is not the strongest state but a state that can be indicated by the interlocking signal including the strongest state. In a strong state, the operation of the manual operation switch 15 may be prioritized.

Although the interlocking adapter 10 of FIG. 1 disconnects the connectors 13 and 14 and inserts them between the connectors 13 and 14, the connectors 13 and 14 are provided like the ventilation fan 11. If not, it is possible to change the electric wiring inside the ventilation fan and directly incorporate the circuit corresponding to the interlocking adapter 10 into the ventilation fan. Further, the function of the interlocking adapter 10 can be provided in the ventilation fan from the beginning.

[0024]

As described above, according to the present invention, the fan drive motor of the ventilation fan can be operated by instructing it by the manual operation switch or the interlocking signal received by the receiving unit. If the interlocking signal is generated in conjunction with the operation of the cooking device, the ventilation fan can be operated in conjunction with the operation of the cooking device.

According to the present invention, a connector for electric connection provided between the switch for manual operation of the ventilation fan and the motor for driving the fan is removed, and an interlocking adapter including a receiving means and a control means is inserted. A function for interlocking can be added to the ventilation fan.

Further, according to the present invention, the intensity of the ventilation fan can be switched between a plurality of levels, and the interlocking signal received by the receiving means can instruct a predetermined low-level operation. Even if the instruction of the manual operation switch is the operation of the weaker stage than the weak stage indicated by the stop of the ventilation fan or the interlocking signal, if the operation at the lower stage is indicated by the interlocking signal, the operation at the indicated weaker stage It can be performed. Therefore, if the interlocking signal is automatically generated when the need for ventilation occurs, the ventilation fan can be reliably operated at the weak stage. With the manual operation switch, the operation state of the ventilation fan can be switched so as to be stronger than the weak stage,
Ventilation capacity can be increased depending on the degree to which ventilation is required.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic electrical configuration of an embodiment of the present invention.

FIG. 2 is a simplified perspective view showing an example of an environment using an interlock adapter 10 and a ventilation fan 11 of FIG.

FIG. 3 is a block diagram showing a schematic configuration for generating an interlocking signal using an extinguishing safety device provided in the gas stove 30 of FIG. 2;

FIG. 4 is a block diagram showing a schematic electric configuration of a ventilation fan 1 whose operation state can be switched between strong and weak.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Interlock adapter 11 Ventilation fan 12 Fan drive motor 13, 14, 23, 24 Connector 15 Manual operation switch 20 Control circuit 21 Receiving unit 25 Logical sum circuit 26, 27 Logical inversion circuit 28 Logical product circuit 30 Gas stove 31 Thermocouple 32 Solenoid valve Unit 35 Safety valve 37 Pilot flame 38 Ignition detection circuit 39 Light emitting diode 40 Range hood

Claims (3)

[Claims] 1. A ventilating fan interlocking control device for controlling operation of a fan driving motor in accordance with an operation of a manual operation switch, comprising: receiving means for receiving an external interlocking signal; When at least one of the interlocking signal or the manual operation switch instructs the operation of the ventilation fan in response to the output of the receiving means and the manual operation switch, the fan driving motor is inserted between the fan driving motor and the fan driving motor. Control means for controlling the motor to operate, the control device for interlocking the ventilation fan. 2. In the ventilation fan, a connector for making an electrical connection is provided between the manual operation switch and the fan drive motor, and the reception unit and the control unit are provided with an interlocking adapter. The control device for interlocking a ventilation fan according to claim 1, wherein the control device is inserted between the manual operation switch side from which the connector is disconnected and the fan drive motor side. 3. The manual operation switch is capable of switching the intensity of operation of the fan drive motor to a plurality of levels, and the interlock signal is used to control the operation of the ventilation fan in a predetermined level among the levels. When the manual operation switch is stopped or when the manual operation switch is instructed to be in a weaker stage, the control means may determine the weaker stage when the operation signal indicates the operation in the weaker stage. 3. The ventilating fan according to claim 1, wherein when the manual operation switch indicates a step higher than the weak step, the fan driving motor is controlled to operate at the instruction step. Interlocking control device.