JPH07139773A - Range hood - Google Patents

Abstract

PURPOSE:To provide a range hood which is automatically operated in cooperation when a small kitchen range is used and cannot be stopped solely at the time of using the kitchen range and in which the kitchen range can be stopped when it cannot be operated owing to a trouble, etc., to improve its safety. CONSTITUTION:The range hood comprises a small kitchen range 1 which is ignited to be operated by an external power source and outputs a signal at the time of operating, an operation controller 8 which automatically operates an exhaust blower 5 at the time of receiving an output signal of the range 1 and cannot stop it solely at the time of receiving the signal, and a power source supply controller 10 which has a power supply plug socket 9 for the kitchen range and stops supply of the power source for the kitchen range in a state of disabling an operation at the time of a trouble, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a range hood for discharging waste gas, oil smoke, odor, etc. generated during cooking to the outside.

[0002]

2. Description of the Related Art In recent years, a range hood is generally installed above a stove, and operation is generally performed by a switch of the range hood. However, since such a range hood performs its driving operation separately from the switch operation of the stove, there is a risk of forgetting to operate the range hood when using the stove. Therefore, there has been a demand for a highly safe range hood that reliably discharges waste gas and oil smoke generated from the stove when the stove is used.

Under the circumstances, a range hood having a structure as disclosed in, for example, Japanese Patent Laid-Open No. 3-144238 has been conventionally provided. The configuration will be described below with reference to FIG.

As shown in the figure, a temperature detecting element 101, which is installed in the vicinity of a suction port of a range hood and whose conductivity characteristic changes in response to temperature, is combined with a temperature detecting circuit 102 for detecting the input of the temperature detecting element 101. A smoke detection element 103, which is connected and installed near the suction port of the range hood, and whose conductive characteristic changes in response to a redox gas, is connected to a smoke detection circuit 104 that detects an input.

Further, when the smoke detecting element 103 detects a predetermined amount or more of redox gas, or the temperature detecting element 1
The exhaust amount is determined according to the difference between the operation start means 105 for starting the operation of the range hood when 01 has detected a temperature increase above a predetermined value, and the difference between the temperature at the start of the operation of the range hood and the detected temperature during operation. The exhaust amount determining means 106 for performing the operation and the operation stopping means 107 for stopping the operation of the range hood when the difference between the temperature at the start of operation and the detected temperature during operation return to less than a predetermined value are provided. And the control circuit 1 by the exhaust amount determining means 106 and the operation stopping means 107.
08 has been formed. Then, in response to the signal from the control circuit 108, the drive circuit 109 is configured to control the drive of the motor 110 of the range hood.

In the above construction, when the stove is used, the temperature near the range hood suction port rises due to the generation of redox gas from the stove and the exhaust heat of the stove. The smoke detection element 103 detects the generation of the redox gas or the temperature detection element 101 detects the temperature rise, and the operation starting means 1
The motor 110 starts automatic operation via the drive circuit 109 via 05. Further, the temperature detection element 101 detects a temperature difference due to a change in the heating power of the stove burner, and the exhaust amount determination means 106 causes the motor 110 to operate according to the temperature difference.
Adjust the displacement by controlling the rotation speed of. Then, when the use of the stove is stopped and the difference between the detected temperature and the temperature at the start of operation returns to less than the predetermined value, the operation stopping means 107 stops the motor 110.

[0007]

In such a conventional range hood, in order to reliably operate the range hood at the start of use of the stove, the accuracy of the temperature detecting element 101 and the smoke detecting element 103 is required and the operating environment is high. In some cases, the responsiveness is deteriorated, and when the stove is an electric stove, the redox gas is not generated.
As a result, the response becomes poor and the range hood may not operate even if the stove is used. further,
Even when the range hood cannot be operated due to the performance deterioration of the temperature detection element 101 or the smoke detection element 103, or the range hood failure such as the control circuit 108, the stove can be used independently, so that the user does not notice the stop of the range hood. There was a problem that it was unsafe because the waste gas was not discharged to the outside using the stove.

The present invention solves the above-mentioned problems. When the stove is used, it operates reliably in conjunction with it, and when the stove cannot be operated, the stove is also stopped to prevent exhaust gas from filling the room. A first object is to provide a highly safe range hood that can be used.

The second purpose is to allow the user to use the stove again by securing other ventilation means even when the range hood cannot be operated due to a malfunction of the range hood. It is to provide a range hood that does not interfere with the.

[0010]

In order to achieve the above first object, the range hood of the present invention is a cooking device in which a first means controls ignition by an external power source and a stove for outputting a signal when used is arranged. A hood body installed on the equipment stand, an exhaust blower that discharges the air sucked into the hood body to the outdoors, and an exhaust blower that automatically operates by receiving the output signal of the stove and receives the output signal At times, an operation control unit that disables the operation of stopping the operation and a stove power supply outlet that supplies power to the stove are provided, and the power supply for the stove is stopped when the exhaust blower cannot be operated due to a failure.

In order to achieve the second object, the second
In addition to the first means, the means is provided with a changeover switch capable of supplying power to the stove power supply outlet without the power supply control section in a state where the exhaust blower cannot be operated due to a failure.

[0012]

According to the present invention, with the configuration of the first means described above, when the stove is used, the range hood is interlocked to start automatic operation, and when the stove is stopped, the range hood is automatically stopped. Further, when the stove is used, the range hood cannot be stopped independently, and when the range hood becomes inoperable due to a failure or the like, the power supply for the stove is stopped to forcibly stop the stove. in this way,
When the stove is used, the range hood is always in operation.

In addition, according to the second configuration, the user notices that the range hood cannot be operated due to a failure or the like because the stove cannot be used, and the stove is used again after taking other ventilation means such as opening a window. can do.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.

As shown in the figure, a hood body 4 of a range hood having an induction cooker base 2 in which an ignition control is performed by an external power source, and a stove 1 for outputting a signal during operation is provided and a suction port 3 is provided above the stove 1. Is installed on the cooker table 2. Then, the hood main body 4 and the exhaust blower 5 housed in the cooker base 2 are connected to each other to form a ventilation path 6 for leading out the sucked air to the outside, and a range hood switch 7
Is provided with an operation control unit 8 for controlling the drive of the exhaust blower 5 and the output signal of the stove 1 is prioritized to the switch 7
It is configured to perform the forced operation of the exhaust blower 5 regardless of the operation.

In addition, the power source has a power source outlet 9 for the stove and detects the state when the exhaust blower 5 cannot operate due to a failure or the like and stops the power supply to the power source outlet 9 for the stove. The supply control unit 10 is provided, and the power supply control unit 10 and the operation control unit 8 form a control circuit unit 11.

In the above structure, the switch 7 can be used to switch on and off the exhaust blower 5 of the range hood and to switch the speed control,
When the stove 1 is used without operating the switch 7, the operation control unit 8 receives the output signal and automatically operates the exhaust blower 5, and when the use of the stove 1 is stopped and the output signal is stopped, the operation is performed. The control unit 8 stops the operation of the exhaust blower 5. While the stove 1 is in use, that is, when the operation control unit 8 is receiving the output signal of the stove 1, the output signal is prioritized, and therefore the exhaust blower 5 cannot be stopped by operating the switch 7. Further, since the stove 1 is supplied with power from the stove power supply outlet 9 and is controlled in ignition, when the range hood becomes inoperable due to a failure or the like, the power supply control unit 10 operates to connect the stove power supply outlet 9 to the stove power supply outlet 9. Since the power supply to the stove 1 is stopped, the operation of the stove 1 is stopped and the stove 1 cannot be used. Therefore, when the stove becomes unusable, the user does not notice the breakdown of the range hood and continues cooking, and the exhaust gas is not exhausted and the room is not filled.

As described above, according to the range hood of the first embodiment of the present invention, when the stove 1 is used, even if the switch 7 of the range hood is not operated, the automatic operation is stopped in conjunction with the stove 1. You can

While the stove 1 is in use, the range hood cannot be stopped alone, and when the range hood is stopped due to a failure or the like, the operation of the stove 1 is also stopped. The waste gas of No. 1 will not be exhausted and will not fill the room and will not become unsafe.

A second embodiment of the present invention will be described below with reference to FIGS. 3 and 4. The same parts as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

As shown in the figure, even when the power supply control unit 10 is activated due to a failure of the exhaust blower 5 and the power supply to the stove power supply outlet 9 is stopped, the power supply control unit 10 is not used. Direct power supply outlet for stove 9
A changeover switch 12 forming a circuit that bypasses the power supply control unit 10 is provided so that power can be supplied to the power source.

In the above configuration, when the exhaust blower 5 becomes inoperable due to a failure or the like, the power supply controller 10
Is activated and the power supply to the stove power supply outlet 9 is stopped, so that the stove 1 cannot be used.

When the user wants to use the stove 1 again by another ventilation means such as opening a window, the power supply control section 1 is switched by switching the changeover switch 12.
0 is bypassed and the power outlet for the stove is directly connected 9
Power is supplied to the stove 1 and the stove 1 can be used.

As described above, according to the range hood of the second embodiment of the present invention, when the user adopts another ventilation means such as opening a window to secure the safety and then switches the changeover switch 12, the stove 1 is restarted. Since it can be used, it will not interfere with daily cooking.

It goes without saying that the stove used in the present invention is not related to the kind of the stove such as a gas stove or an electric stove.

[0026]

As is apparent from the above embodiments, according to the present invention, the exhaust blower which is automatically operated by receiving the output signal of the stove and the operation stop operation are disabled when the output signal is received. The operation control unit, the power outlet for the stove, and the power control unit that stops the supply of the power for the stove when the exhaust blower cannot operate, so the exhaust blower is always operated when the stove is in use. It is possible to provide a highly safe range hood in which gas is exhausted.

Further, since the changeover switch for bypassing the power supply control section is provided, even if the range hood cannot be operated due to a failure or the like, the user can easily know the fact, and the user cannot After securing the safety by the ventilation means, the stove can be reused, and the safety can be prevented without inconvenience in daily cooking until the range hood can be operated.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an electric circuit configuration of a range hood according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing the configuration of the range hood of the first embodiment.

FIG. 3 is a circuit diagram showing an electric circuit configuration of the range hood of the second embodiment.

FIG. 4 is a cross-sectional view showing the configuration of the range hood of the second embodiment.

FIG. 5 is a circuit diagram showing an electric circuit configuration of a conventional range hood.

[Explanation of symbols]

 1 stove 2 cooker stand 4 hood body 5 exhaust blower 8 operation control unit 9 stove power supply outlet 10 power supply control unit 11 control circuit 12 changeover switch

Claims (2)

[Claims] 1. A hood main body which is installed on a cooking table on which a stove for outputting a signal is used for ignition control by an external power source, an exhaust blower for discharging air sucked into the hood main body to the outside, and The exhaust blower is automatically operated by receiving the output signal of the stove, and includes an operation control unit that disables the operation to stop the operation when the output signal is received, and a stove power supply outlet that supplies power to the stove. , A range hood with a power supply control unit that stops the power supply for the stove when the exhaust blower cannot be operated due to a failure. 2. The range hood according to claim 1, further comprising a changeover switch capable of supplying power to the stove power supply outlet without going through the power supply control unit when the exhaust blower cannot operate due to a failure or the like.