JP2011058797A - Ventilating device and ventilating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilating device or a ventilating system capable of performing ventilation in conjunction with the operation of cooking appliances in a cooking room in a house. <P>SOLUTION: The ventilating device 2 includes: a hood 4 covering a front face; an air blowing means 5 mounted inside and discharging indoor air while switching to a plurality of ventilation air quantities; a radio signal detecting means 6 comprising an infrared ray light receiving element for receiving "presence/absence" of an infrared ray signal informed from a heating cooking means 3 arranged below the ventilating device 2; an environment detecting means 7 arranged toward a lower face side of the hood 4 and detecting a temperature on a top face of the heating cooking means 3; and a determination means 8 for detecting the change of the temperature when receiving the infrared ray signal and determining the operation or stop of the air blowing means 5. In the ventilation system, the ventilation is performed in conjunction with the operation of the heating cooking means 3. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a ventilation device and a ventilation system for a kitchen in a house.

  In recent years, due to the improvement in the airtightness of houses, there are many opportunities to operate a ventilation fan during cooking using a cooking device, and the demand for a ventilation device or a ventilation system linked to the operation of the cooking device has increased.

  Conventionally, this type of ventilator has a built-in ventilation means in the hood, a sensor for detecting whether the cooking device is used in the hood or the hood, and is provided on the top surface of the cooker provided under the hood. In response to a signal for notifying whether or not the cooking device is used from the transmitter, the operation of the blowing means is stopped (for example, see Patent Document 1).

  Hereinafter, the ventilator will be described with reference to FIGS.

  The ventilator 101 receives a signal notified from the hood 102, the air blowing means 103 inside the hood 102, and the cooking device 104 disposed below the ventilating device 101. The sensor 105 for detecting “/ None” is incorporated.

  In addition, the cooking device 104 transmits an infrared signal continuously from the transmission light emitting unit 108 in response to the operation of the power switch 107 of the heater 106 provided therein, or an infrared signal indicating the start and stop of energization of the heater. It was something to send.

  The sensor 105 receives the infrared signal transmitted from the transmission light emitting unit 108 from a signal received in advance according to a signal format or signal pattern determined between the cooking device 104 and the ventilator 101. The use 103 was determined to be “present / absent” and the blower 103 was operated.

  As described above, the conventional ventilator 101 operates the blower unit 103 by reading a signal transmitted from the cooking device 104 and informing the use / non-use of the use.

Japanese Patent Laid-Open No. 10-205840

  In such a conventional configuration, the ventilator receives a notification signal indicating “presence / absence” of use transmitted from the cooking device and performs the interlocking operation. If the signal pattern and format are not matched in advance, the interlocking operation is not performed. It was impossible.

  Therefore, it was a problem that the user had to replace both at the same time even when either the cooking device or the ventilator failed.

The present invention solves such a conventional problem, detects the presence / absence of a signal transmitted from a cooking device, starts and stops the operation of the ventilation fan, and has different signal formats and signal patterns. An object is to provide a ventilator that can be operated and stopped in conjunction with cooking utensils.

  In order to solve the above-mentioned problem, the ventilator according to the present invention is a wireless signal detecting means for detecting the generation of a wireless signal transmitted from the heating cooking means in conjunction with a heating start operation and a heating stop operation of the heating cooking means. And an environment detection means for detecting a change in the environment, and a determination means for detecting the change in the environment when the wireless signal is generated and determining the operation or stop of the blower provided therein, and the heating The blower is operated in conjunction with the operation of the cooking means.

  Further, in conjunction with the heating start operation and the heating stop operation of the heating cooking means, a wireless signal detection means for detecting the generation of a wireless signal transmitted from the heating cooking means, an environment detection means for detecting a change in the environment, When the wireless signal is generated, the change in the environment is detected and the blower capable of adjusting the air volume provided therein or the determination means for determining stoppage, and the blower is operated when the change in the environment is detected. Air volume setting means for setting the air volume to be set in advance, and the blower is operated in conjunction with the operation of the heating cooking means.

  In addition, an environment detection unit that detects an environmental change in the vicinity of the heating cooking unit is provided, and the blower is operated in conjunction with the operation of the heating cooking unit.

  Moreover, an environment detection means for detecting a temperature change is provided, and the blower is operated in conjunction with the operation of the heating cooking means.

  In addition, when the environment detection means detects a temperature change in the direction in which the temperature increases, the environment detection means includes a determination means for starting the operation of the blower, and the blower is operated in conjunction with the operation of the heating cooking means. Is.

  In addition, when the environment detection means detects a temperature change in the direction in which the temperature decreases, the environment detection means includes a determination means for stopping the operation of the blower, and the blower is operated in conjunction with the operation of the heating cooking means. Is.

  Moreover, infrared rays are used for the signal received by the wireless signal detection means, and the blower is operated in conjunction with the operation of the heating cooking means.

  Further, the wireless signal detection means is configured to act as a remote control receiving means for receiving a signal transmitted from a remote control for switching the air volume of the blower, and to operate the blower in conjunction with the operation of the heating cooking means. It is.

  In addition, when the wireless signal is detected, the wireless cooking device includes a signal-specific unit that preferentially determines whether or not the wireless signal is a wireless signal for switching the air volume of the blower with respect to the wireless signal transmitted from the heating cooking unit. The blower is configured to operate in conjunction with the operation.

  Furthermore, in conjunction with the heating start operation and the heating stop operation, the heating means provided with a transmitter that transmits a wireless signal, and the ventilation device provided in the vicinity of the heating cooking means, linked to the operation of the heating cooking means The ventilation system is configured to operate the blower.

As described above, according to the ventilator of the present invention, in conjunction with the heating start operation and the heating stop operation of the heating cooking means, wireless signal detection means for detecting the generation of a wireless signal transmitted from the heating cooking means, An environmental detection means for detecting a change in the environment; and a determination means for detecting the change in the environment when the wireless signal is generated and determining whether to operate or stop the blower provided therein. Ventilation can be performed and ventilation can be stopped by operating the blower in conjunction with the operation.

  Further, in conjunction with the heating start operation and the heating stop operation of the heating cooking means, a wireless signal detection means for detecting the generation of a wireless signal transmitted from the heating cooking means, an environment detection means for detecting a change in the environment, When the wireless signal is generated, the change in the environment is detected and the air flow adjustment fan installed in the inside thereof can be adjusted or determined, and the blower is operated when the change in the environment is detected. An air volume setting means for setting an air volume in advance is provided, and ventilation and stoppage of ventilation can be performed by operating the blower with an air volume set in advance in conjunction with the operation of the heating cooking means.

  In addition, an environment detection unit that detects an environmental change in the vicinity of the heating cooking unit can be provided, and the blower can be operated in conjunction with the operation of the heating cooking unit to stop ventilation and ventilation.

  Further, it is possible to provide environment detection means for detecting a temperature change and operate the blower in conjunction with the operation of the heating cooking means to perform ventilation and stop ventilation.

  In addition, when the environment detection means detects a temperature change in the direction in which the temperature increases, the environment detection means includes a determination means for starting the operation of the blower, and operates the blower in conjunction with the operation of the heating cooking means for ventilation and Ventilation can be stopped.

  In addition, when the environment detection means detects a temperature change in the direction of lowering the temperature, it includes a determination means for stopping the operation of the blower, and operates the blower in conjunction with the operation of the heating cooking means to perform ventilation and ventilation. A stop can be made.

  In addition, infrared rays are used for the signal received by the wireless signal detection means, and ventilation and stoppage of ventilation can be performed by operating the blower in conjunction with the operation of the heating means.

  Further, the wireless signal detection means is configured to function as a remote control receiving means for receiving a signal transmitted from a remote controller for switching the air volume of the blower, and operates the blower in conjunction with the operation of the heating cooking means to perform ventilation and ventilation. Can be stopped.

  In addition, when a wireless signal is detected, the wireless cooking device includes a signal determination unit that preferentially determines whether or not the wireless signal is a wireless signal for switching the air volume of the blower with respect to the wireless signal transmitted from the heating cooking unit. Ventilation and stopping can be performed by operating the blower in conjunction with the operation.

  Further, the cooking device includes a cooking device provided with a transmitter that transmits a radio signal in conjunction with a heating start operation and a heating stop operation, and a system configuration in which the ventilation device is installed in the vicinity of the cooking device. Ventilation and stop can be performed by operating the blower in conjunction with the operation.

The figure which shows the structure of the ventilation system of Embodiment 1 of this invention. Block diagram of the ventilation system of the first embodiment Operation flowchart of the first embodiment Timing chart showing interlocking operation of embodiment 1 The figure which shows the structure of the ventilation system of Embodiment 2 of this invention Block diagram of the ventilation system of the second embodiment Operation flowchart of the second embodiment Timing chart showing interlocking operation of embodiment 2 Structure diagram of conventional ventilator Block diagram of the conventional ventilator Operation flowchart of the conventional ventilator Timing chart showing the interlocking operation of the conventional ventilator

  The invention according to claim 1 is a wireless signal detection means for detecting the generation of a wireless signal transmitted from the heating cooking means in conjunction with a heating start operation and a heating stop operation of the heating cooking means, and detects a change in the environment. An environment detection means for detecting the change in the environment when the wireless signal is generated, and a determination means for deciding whether to operate or stop the blower provided therein, and interlocking with the operation of the heating cooking means. And act to operate the blower.

  According to a second aspect of the present invention, there is provided a wireless signal detection means for detecting the generation of a wireless signal transmitted from the heating cooking means in conjunction with a heating start operation and a heating stop operation of the heating cooking means, and a change in the environment. An environment detection means that detects the environmental change when the wireless signal is generated, and a determination means that determines whether to operate or stop the air volume adjustable fan installed therein, and when an environmental change is detected. The air flow setting means for setting the air flow for operating the blower in advance is provided, and the blower is operated in conjunction with the operation of the heating cooking means.

  Invention of Claim 3 has the effect | action which provides the environment detection means which detects the environmental change of the vicinity of the said heating cooking means, and operates the said fan in response to operation of the said heating cooking means.

  According to a fourth aspect of the present invention, there is provided an environment detecting means for detecting a temperature change, and has an effect of operating the blower in conjunction with an operation of the heating cooking means.

  The invention according to claim 5 includes a determination unit that starts operation of the blower when the environment detection unit detects a temperature change in a direction in which the temperature becomes higher, and is linked to an operation of the heating cooking unit. It has the effect | action which operates an air blower.

  The invention according to claim 6 is provided with a determination means for stopping the operation of the blower when the temperature change is detected by the environment detection means in a direction in which the temperature decreases, and the blower is interlocked with the operation of the heating cooking means. Has the action of operating.

  The invention described in claim 7 is characterized in that infrared rays are used for the signal received by the wireless signal detecting means, and has the function of operating the blower in conjunction with the operation of the heating cooking means.

  According to an eighth aspect of the present invention, the wireless signal detection means is configured to function as a remote control receiving means for receiving a signal transmitted from a remote controller for switching the air volume of the blower, and the blower is interlocked with the operation of the heating cooking means. Has the action of operating.

  According to the ninth aspect of the present invention, when the wireless signal is detected by the signal discriminating unit, the radio signal transmitted from the cooking device is preferentially determined as to whether or not the radio signal is for switching the air volume of the blower. The air blower is operated in conjunction with the operation of the heating cooking means.

  The invention according to claim 10 is a configuration in which heating cooking means provided with a transmission means for transmitting a wireless signal in conjunction with a heating start operation and a heating stop operation, and the ventilation device provided in the vicinity of the heating cooking means. The air blower is operated in conjunction with the operation of the heating cooking means.

(Embodiment 1)
Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, a ventilation system 1 attached to a kitchen in a house includes a ventilation device 2 and a cooking device 3.

  The ventilator 2 is notified from a hood 4 that covers the front surface, a blower 5 that discharges indoor air by switching to a plurality of ventilation airflows inside, and the cooking device 3 disposed below the ventilator 2. A wireless signal detection means 6 comprising an infrared light receiving element for receiving “in / out” of an infrared signal, and the hood 4 are arranged toward the lower surface side of the hood 4. An environment detection means 7 comprising a thermistor for detecting the temperature on the surface, and a determination means 8 for detecting the change of the temperature when receiving the infrared signal and determining the operation or stop of the blower 5 are provided. Yes.

  In addition, the ventilation device 2 is set by a user operating a part of a push button operation switch (not shown) of the ventilation device 2 in advance by the user to set the air volume of the blower 5 that is operated when an environmental change is detected. The air volume setting means 9 is provided.

  The heating cooker device 3 includes a heat source heater 10 that performs induction heating when cooking inside, an ignition switch 11 of the heat source heater 10, and transmission means 12 in conjunction with the operation of the ignition switch 11. Infrared signal is transmitted from.

  In the above configuration, as shown in the flowchart of FIG. 3 and the timing chart of FIG. 4, the user sets the air volume of the blower 5 in advance with the air volume setting means 9 of the ventilation device 2 assuming the ventilation air volume during the linked operation. Keep it.

  When the ignition switch 11 is operated when cooking with the cooking device 3 is started, an infrared signal is transmitted from the transmission means 12, and the ventilator 2 uses the wireless signal detection means 6 to generate a line signal every infrared. Detect occurrence. When the cooking device 3 starts to operate, the temperature on the top surface of the cooking device 3 gradually increases, the environment detection means 7 detects this temperature change, and the determination means 8 performs cooking. Detecting the start, the blower 5 is operated in conjunction with the air volume set in advance by the air volume setting means 9.

  Next, when the cooking operation is finished and the ignition switch 11 of the cooking device 3 is stopped, an infrared signal is transmitted from the transmission means 12, and the ventilation device 2 uses the wireless signal detection means 6 to transmit the infrared signal. Detect occurrence. And when operation | movement of the heating cooking appliance 3 stops, the temperature on the top | upper surface of this cooking appliance 3 will fall gradually, the environment detection means 7 will detect this temperature change, and the determination means 8 will be It detects that cooking has been completed and stops the blower 5.

In the first embodiment, in conjunction with the heating start operation and the heating stop operation of the cooking device 3, the wireless signal detection means 6 that detects the generation of the infrared signal transmitted from the cooking device 3, and the infrared signal is generated. The environmental change in the vicinity of the cooking device 3, that is, the temperature change on the top surface is detected by the environmental detection means 7 on the ventilator 2 side to detect the direction in which the temperature increases. In such a case, the blower 5 is operated, and when the temperature is detected in a lowering direction, the determination unit 8 makes a determination to stop the blower 5 in conjunction with the operation of the cooking device 3. Ventilation can be performed by operating the blower 5.

  In addition, the operation of the cooking device 3 can be operated even in the case of the ventilation system 1 using an electric cooking means 3 such as an electromagnetic cooker by detecting a temperature change starting from the generation of a wireless signal. The start and end can be reliably detected, and the fan 5 can be operated and stopped to perform ventilation during cooking.

  In addition, the user can perform the interlocking operation of the blower 5 by setting the air volume at the time of the interlock operation in advance by the air volume setting means 9 provided in the determination means 8, and can be appropriately adapted to the cooking environment. Ventilation air volume can be secured.

  Furthermore, by using an infrared signal as a radio signal, the user can construct a ventilation system 1 by combining the ventilator 2 widely with a general-purpose cooking device 3 that transmits an infrared signal during operation. Ventilation can be performed in conjunction with the cooking operation of the cooking device 3.

  In particular, when the cooking device 3 is out of order and needs to be replaced, it is possible to link with the ventilator 2 if an infrared signal can be transmitted in conjunction with the operation even if the manufacturer and model number are not matched. Ventilation can be performed easily even if the signal format and the logic of the interlocking signal are not affected.

(Embodiment 2)
Hereinafter, Embodiment 2 of the present invention will be described with reference to FIGS. 5 to 7 in the case where the wireless signal detection unit also serves as a remote control reception unit that receives a signal transmitted from a remote controller that switches the air volume of the blower.

  As shown in FIGS. 5 and 6, the ventilation system 13 attached to the kitchen in the house includes a ventilation device 14 and a cooking device 3.

  The ventilator 14 includes a hood 4 that covers the front surface, a blower 5 that discharges indoor air by switching to a plurality of ventilation airflows inside, and a first operation using a home appliance association format for the operation and stop operation of the blower 5. The remote control 16 that transmits the infrared signal 15 to perform remote operation, and the presence of the first infrared signal 15 and the second infrared signal 17 notified from the cooking device 3 disposed below the ventilator 14. The wireless signal detecting means 18 comprising an infrared light receiving element that receives “/ none” and the temperature on the top surface of the cooking appliance 3 in the vicinity of the cooking appliance 3, that is, on the top surface where the environment changes greatly. An environment detection means 7 comprising a thermistor for detecting the first infrared signal 15 and a second infrared signal 17 when the infrared signal is received. When the first infrared signal 15 is discriminated, the signal is continuously decoded and the first determining means 20 for determining the operation or stop of the blower 5 and the second infrared signal 17 are received. A determination means 22 comprising a second determination means 21 for detecting a change in temperature by the environment detection means 7 when detected by the signal determination means 19 and determining the operation or stop of the blower 5; Yes.

  The signal discriminating means 19 preferentially determines whether or not the received infrared signal is the first infrared signal 15 with respect to the second infrared signal 17.

  In addition, the ventilation device 14 is configured so that the user can set in advance the air volume of the blower 5 that is operated when a change in the environment is detected by operating a part of an operation switch (not shown) of the ventilation device 14 in advance. The means 9 is provided.

  The heating cooker device 3 includes a heat source heater 10 that performs induction heating when cooking inside, an ignition switch 11 of the heat source heater 10, and transmission means 12 in conjunction with the operation of the ignition switch 11. Is configured to transmit the second infrared signal 17.

  In the above configuration, as shown in the flowchart of FIG. 7 and the timing chart of FIG. 8, the user sets the air volume of the blower 5 in advance with the air volume setting means 9 of the ventilation device 14 assuming the ventilation air volume during the linked operation. Keep it.

  When the ignition switch 11 is operated when cooking with the cooking device 3 is started, the second infrared signal 17 is transmitted from the transmission unit 12, and the ventilator 14 receives the infrared signal by the wireless signal detection unit 18. Detect occurrence. Then, the signal discriminating means 19 puts on the home appliance association format, discriminates the signal, judges that it is not the first infrared signal 15, and judges it as the second infrared signal 17.

  Moreover, when the cooking device 3 starts to operate, the temperature on the top surface of the cooking device 3 gradually increases, and the environment detection means 7 detects this temperature change, and the second determination means 21 Detecting the start of cooking, the blower 5 is operated in conjunction with the air volume previously set by the air volume setting means 9.

  Next, when the cooking operation is completed and the ignition switch 11 of the cooking device 3 is stopped, the second infrared signal 17 is transmitted from the transmission unit 12, and the ventilation device 14 is a wireless signal detection unit 18. The generation of this infrared signal is detected. Then, the signal discriminating means 19 puts on the home appliance association format, discriminates the signal, judges that it is not the first infrared signal 15, and judges it as the second infrared signal 17.

  When the operation of the cooking device 3 is stopped, the temperature on the top surface of the cooking device 3 gradually decreases, and the environment detection unit 7 detects this temperature change, and the second determination unit. 21 detects the end of cooking and stops the blower 5.

  In the second embodiment, the wireless signal detection means 18 that detects the generation of the second infrared signal 17 transmitted from the cooking device 3 in conjunction with the heating start operation and the heating stop operation of the cooking device 3 is a blower. Even if the remote control receiving means for receiving the first infrared signal 15 transmitted from the remote control 16 that remotely operates 5 is used, the signal discrimination means 19 performs the discrimination and discriminates it from the second infrared signal 17. When this is done, the environment detecting means 7 can detect a temperature change in the vicinity of the cooking device 3, that is, on the top surface, and the second determining means 21 can operate the blower 5. The ventilation can be performed in conjunction with the operation of the cooking device 3.

  In addition, the first infrared signal 15 is a signal having a large amount of information in a predetermined format in order to prevent malfunction with other devices and to reliably perform remote operation. For the signal 17, the signal discriminating means 19 preferentially determines whether the received infrared signal is the first infrared signal 15 or not with respect to the second infrared signal 17. Even if the wireless signal detection means 18 also serves as a remote control reception means for receiving a signal transmitted from the remote controller 16 for switching the air volume of the blower 5, the radio signal detection means 18 can decode the signal with higher accuracy and ensure remote operation with the remote controller 16. However, ventilation can be performed in conjunction with the operation of the cooking device 3.

In the first embodiment, the cooking device 3 is configured to transmit an infrared signal from the transmission means 12 in conjunction with the operation of the ignition switch 11, but the infrared signal to be transmitted is, for example, a home appliance association format or the like. Needless to say, the ventilator of the present invention can be operated in an interlocked manner as long as the infrared signal is transmitted in accordance with the operation timing of the ignition switch 11 regardless of whether the specific format is used.

  Moreover, in Embodiment 1 and 2, although the environment detection means 7 which consists of a thermistor is provided and the temperature change on the top | upper surface of the heating cooking appliance 3 is detected, it cooks using an infrared type temperature sensor. It goes without saying that interlocking operation of the ventilators 2 and 14 of the present invention can be performed even if the temperature of the top surface of the device 3 is measured.

  In the first and second embodiments, an infrared signal is used as a wireless signal. However, an ultrasonic signal is transmitted from the cooking device 3, and the wireless signal detecting means 6 or 18 of the ventilator 2 or 14 transmits the ultrasonic wave. Needless to say, the ventilators 2 and 14 of the present invention can be operated in conjunction with each other even when receiving a signal.

  Moreover, in Embodiment 1 and 2, although the operation | movement at the time of detecting the infrared signal transmitted in conjunction with operation of the heating cooking appliance 3 is demonstrated, it transmits from the remote control which operates a television or an air conditioner. When the infrared signal is received by the wireless signal detection means 6 or 18, since the cooking device 3 is not operated, the environment detection means 7 does not detect a change in the environment, so that the ventilators 2 and 14 do not malfunction. Absent.

  Moreover, in Embodiment 1 and 2, although the induction heating type thing is used as a heat source heater, it cannot be overemphasized that there is no limitation in the form.

  Furthermore, it goes without saying that even if a heat source heater using gas combustion is used, the ventilation device can be operated in conjunction with the operation of the cooking device.

  A ventilation system according to the present invention includes a wireless signal detection means for detecting the generation of a wireless signal transmitted from the heating cooking means in conjunction with a heating start operation and a heating stop operation of a cooking device, and a change in the environment. Environment detection means for detecting the change in the environment when the wireless signal is generated, and a determination means for determining whether to operate or stop the blower provided in the interior, in conjunction with the operation of the cooking device. Since ventilation is performed by operating the blower, heating start and stop operations can be performed without combining the cooking equipment and the equipment that has previously decided the format of the interlocking signal and signal pattern between the ventilation equipment. It is useful for performing an interlocking operation of ventilation by combining a ventilation device with an arbitrary heating means for informing operation.

DESCRIPTION OF SYMBOLS 2 Ventilator 3 Heating cooking appliance 5 Blower 6 Wireless signal detection means 7 Environment detection means 8 Judgment means 10 Heat source heater 11 Ignition switch 12 Transmission means 14 Ventilation apparatus 15 First infrared signal 16 Remote control 17 Second infrared signal 18 Radio signal Detection means 22 Determination means

Claims (10)

In conjunction with the heating start operation and the heating stop operation of the heating cooking means, a wireless signal detection means for detecting the generation of a wireless signal transmitted from the heating cooking means, an environment detection means for detecting an environmental change, and the wireless A ventilator for ventilating in conjunction with the operation of the heating cooking means, comprising a judging means for detecting the change of the environment when the signal is generated and determining whether to operate or stop the blower provided therein. In conjunction with the heating start operation and the heating stop operation of the heating cooking means, a wireless signal detection means for detecting the generation of a wireless signal transmitted from the heating cooking means, an environment detection means for detecting an environmental change, and the wireless An operation of a blower capable of adjusting the air volume provided inside by detecting a change in the environment when a signal is generated, or a determination means for determining whether to stop, and an air volume for operating the blower when a change in the environment is detected A ventilation device for ventilating in conjunction with the operation of the heating cooking means. The ventilator according to claim 1 or 2, further comprising an environment detection means for detecting an environmental change in the vicinity of the heating cooking means. The ventilation apparatus according to claim 1 or 2, further comprising an environment detection means for detecting a temperature change. The ventilator according to claim 1, 2, 3, or 4, further comprising a determination unit that starts operation of the blower when the environment detection unit detects a temperature change in a direction in which the temperature increases. The ventilator according to claim 1, 2, 3 or 4, further comprising determination means for stopping the operation of the blower when the environment detection means detects a temperature change in a direction in which the temperature decreases. The ventilation apparatus according to claim 1 or 2, wherein infrared rays are used for a signal received by the wireless signal detection means. The ventilating apparatus according to claim 1 or 7, wherein the wireless signal detecting means also functions as a remote control receiving means for receiving a signal transmitted from a remote controller for switching the air volume of the blower. 9. Ventilation according to claim 8, wherein when a wireless signal is detected, ventilation is provided with signal-specific means for preferentially determining whether the wireless signal is a wireless signal for switching the air volume of the blower with respect to the wireless signal transmitted from the heating cooking means. apparatus. A heating cooking means provided with a transmission means for transmitting a radio signal in conjunction with a heating start operation and a heating stop operation, and provided in the vicinity of the heating cooking means. A ventilation system comprising the ventilation device according to 7 or 8, wherein ventilation is performed in conjunction with the operation of the heating cooking means.

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