Ventilation device for kitchen

Abstract

To provide a ventilation device for kitchen which allow a user to know a state of ambient air.SOLUTION: A ventilation device 100 includes a ventilation part for ventilating a kitchen, an acquisition part 131 which acquires air information related to at least one of indoor air within a room in which the kitchen is provided and outdoor air outside the room, and an output part 132 which outputs the acquired air information.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a kitchen ventilation system. [Background technology]

[0002] Cooking is carried out in kitchens in stores such as convenience stores, supermarkets, and department stores, or in homes. Oily smoke, odors, steam, and the like generated by cooking in the kitchen are exhausted to the outside by, for example, a ventilation device (for example, Patent Document 1). For example, a user operates the ventilation device to determine the timing, strength, and the like of ventilation. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2022-91167 A Summary of the Invention [Problem to be solved by the invention]

[0004] In such ventilation in a kitchen, it is desirable for the user to operate the ventilation device while being aware of the surrounding air condition.

[0005] Therefore, an object of the present invention is to provide a kitchen ventilation device that allows a user to understand the surrounding air condition. [Means for solving the problem]

[0006] The kitchen ventilation device of the present invention comprises a ventilation unit for ventilating the kitchen, an acquisition unit for acquiring air information relating to at least one of the indoor air inside a room in which the kitchen is located and the outdoor air outside the room, and an output unit for outputting the acquired air information. Effect of the Invention

[0007] In the kitchen ventilation device according to the present invention, the output unit outputs air information related to at least one of the indoor air and the outdoor air. The output unit outputs the air information, for example, by causing the display unit to display the air information. This allows the user to grasp the state of the surrounding air. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a block diagram showing an example of a schematic configuration of a ventilation system according to a first embodiment. [Diagram 2] 2 is a diagram illustrating an example of a front configuration of the ventilator and the cooking appliance illustrated in FIG. 1. [Diagram 3] 3 is a right-side cross-sectional view of the ventilator and cooking appliance shown in FIG. 2. [Figure 4] 3 is a diagram illustrating an example of the configuration of an operation receiving unit illustrated in FIG. 2. [Diagram 5] 2 is a block diagram showing an example of the configuration of the cooking appliance shown in FIG. 1. [Figure 6] 2 is a block diagram showing an example of a configuration of the electronic device shown in FIG. 1. [Figure 7] 2 is a block diagram showing an example of a functional configuration of the ventilation device shown in FIG. 1. [Figure 8] 8 is a flowchart showing an example of a process performed by a control unit shown in FIG. 7. [Figure 9] FIG. 11 is a block diagram showing an example of a schematic configuration of a ventilation device according to a second embodiment. [Figure 10] 10 is a flowchart showing an example of a process performed by a control unit shown in FIG. [Figure 11] 13 is a block diagram showing an example of a functional configuration of a control unit of a ventilation device according to Modification 1. FIG. [Figure 12] FIG. 11 is a block diagram showing an example of a functional configuration of a control unit of a ventilation device according to Modification 2. [Figure 13] 13 is a flowchart showing an example of a process performed by a control unit shown in FIG. 12. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the description of the drawings, the same elements are given the same reference numerals, and duplicated description will be omitted. Also, the dimensional ratios of the drawings are exaggerated for the convenience of explanation, and may differ from the actual ratios. In the following description, the up and down in the direction of gravity will be simply referred to as up and down.

[0010] First Embodiment [Configuration of ventilation system 1] 1 shows an example of a schematic configuration of a ventilation system 1 according to the first embodiment. The ventilation system 1 has a ventilation device 100 and a cooking appliance 200. The ventilation device 100 and the cooking appliance 200 are configured to be connectable to an electronic device 300, for example, via a network. The ventilation system 1 is installed, for example, in a kitchen in a building, and ventilates the kitchen.

[0011] 2 and 3 show an example of the configuration of the ventilation device 100 and the cooking appliance 200 installed in a kitchen. FIG. 2 is a front view of the ventilation device 100 and the cooking appliance 200, and FIG. 3 is a right-side cross-sectional view of the ventilation device 100 and the cooking appliance 200. The ventilation device 100 is installed on top of the cooking appliance 200. When a user uses the cooking appliance 200, odors, smoke, oily smoke, and the like are generated. The ventilation device 100 plays a role of sucking in the odors, smoke, oily smoke, and the like and discharging them to the outside. The outside is, for example, the outside of a building in which a kitchen is installed, that is, outdoors. The cooking appliance 200 is used by the user for cooking.

[0012] The ventilation device 100 includes, for example, a blower box 110, an operation reception unit 120, a control unit 130, a display unit 140, a lighting unit 150, an audio output unit 160, and a communication unit 170. Here, the blower box 110 corresponds to a specific example of a ventilation unit of the present invention, the operation reception unit 120 corresponds to a specific example of a reception unit of the present invention, and the control unit 130 corresponds to a specific example of a storage unit of the present invention. The ventilation device 100 is, for example, a range hood. The ventilation device 100 may also be a ventilation fan.

[0013] The blower box 110 exhausts odors, oily smoke, and the like generated by the cooking appliance 200. The blower box 110 is provided with, for example, an air intake 112, an exhaust 114, a fan 116, a fan motor 117, a filter 118, and a filter motor 119. The air intake 112 is a portion that sucks in oily smoke generated by the cooking appliance 200. The exhaust 114 is a portion that communicates with the outdoors. The fan 116 is provided in a passage that connects the air intake 112 and the exhaust 114. The fan 116 is driven by the fan motor 117. The filter 118 is provided, for example, between the air intake 112 and the fan 116. The filter 118 removes oil from the oily smoke sucked from the air intake 112 by, for example, rotating. The filter 118 is driven by the filter motor 119. For example, when the fan 116 rotates, the filter 118 also rotates. The filter 118 may be non-rotating and may remove oil. The blower box 110 may not have a filter.

[0014] The operation receiving unit 120 and the display unit 140 are provided, for example, on the front surface of the ventilation device 100. The operation receiving unit 120 receives, for example, instructions from a user regarding the operation of the ventilation device 100. The instructions received by the operation receiving unit 120 are transmitted, for example, to the control unit 130.

[0015] 4 shows an example of the configuration of the operation reception unit 120. The operation reception unit 120 includes an operation switch 121, a mode changeover switch 122, a timer switch 123, a constant ventilation switch 124, and a lighting switch 125.

[0016] The operation switch 121 is a switch for operating the ventilation device 100. When a user presses the operation switch 121, an operation start signal is transmitted to the control unit 130. When a user presses the operation switch 121 while the ventilation device 100 is operating, an operation end signal is transmitted to the control unit 130.

[0017] It is preferable that the ventilation device 100 is configured to be controllable based on instruction information transmitted from an electronic device owned by the user. This allows the user to ventilate the kitchen even when the user is in a location far from the ventilation device 100. For example, the user can start the operation of the ventilation device 100 on the way home, so that the air environment in the kitchen is improved before the user returns home.

[0018] The mode changeover switch 122 is a switch for changing the air volume of the fan 116 and / or the rotation speed of the filter 118. By using the mode changeover switch 122, the user can change the strength among three levels, for example, weak, medium, and strong. When the mode changeover switch 122 is set to weak, the fan 116 operates at the minimum air volume set, and / or the filter 118 operates at the minimum rotation speed set. When the mode changeover switch 122 is set to medium, the fan 116 operates at an air volume larger than weak, and / or the filter 118 operates at a rotation speed faster than weak. When the mode changeover switch 122 is set to strong, the fan 116 operates at an air volume larger than medium, and / or the filter 118 operates at a rotation speed faster than medium. The user can, for example, manually change the air volume of the fan 116 and / or the rotation speed of the filter 118. The ventilation device 100 may detect the temperature above the cooking appliance 200, and may switch the airflow rate of the fan 116 and / or the rotation speed of the filter 118 depending on the detected temperature.

[0019] The timer switch 123 is a switch for performing timer operation, which rotates the fan 116 and / or the filter 118 for a set time after cooking is completed. When the user presses the timer switch 123, a normal operation end signal is sent to the control unit 130, and the ventilator 100 performs timer operation for a predetermined time.

[0020] The constant ventilation switch 124 is a switch for starting / stopping the constant ventilation by rotating / stopping the fan 116 and / or the filter 118.

[0021] The lighting switch 125 is a switch for turning the lighting unit 150 on and off.

[0022] The control unit 130 controls the operation of the ventilator 100. The control unit 130 is configured, for example, with a central processing unit (CPU) and memories such as a random access memory (RAM) and a read only memory (ROM). The control unit 130 controls each part of the ventilator 100 and performs calculation processing according to a program, for example. The control unit 130 may further include a hard disk drive (HDD) as a memory. Specific functions of the control unit 130 will be described later.

[0023] Display unit 140 is configured, for example, with a liquid crystal display or the like. A user can visually confirm the information displayed on display unit 140. Illumination unit 150 includes, for example, an LED (Light Emitting Diode) or the like. Illumination unit 150 is disposed in a position where it illuminates cooking appliance 200.

[0024] The audio output unit 160 is configured by, for example, a speaker etc. The user can confirm the information output from the audio output unit 160 by hearing it.

[0025] The communication unit 170 has a communication function. The ventilation device 100 has the communication unit 170, which enables transmission and reception of signals with the cooking appliance 200 and the electronic device 300. The communication unit 170 has a function of performing wireless communication according to standards such as Wi-Fi or Bluetooth (registered trademark). The communication unit 170 communicates with the cooking appliance 200 and the electronic device 300 directly or via an access point. The ventilation device 100 may be connected to an external sensor via the communication unit 170.

[0026] 5 is a block diagram showing an example of a schematic configuration of cooking appliance 200. Cooking appliance 200 has, for example, heat source 210, grill 220, control unit 230, operation reception unit 240, and communication unit 250. Heat source 210 is, for example, a burner for a gas cooker or a trivet near the burner. Heat source 210 may also be a heater for an IH cooker or the like. Cooking appliance 200 has, for example, three heat sources 210.

[0027] Like control unit 130 of ventilation device 100, control unit 230 has a CPU, RAM, ROM, etc., and controls each unit of cooking appliance 200 and performs arithmetic processing. Operation reception unit 240 receives, for example, instructions from a user regarding the operation of cooking appliance 200. The instructions received by operation reception unit 240 are transmitted, for example, to control unit 230. Like communication unit 170 of ventilation device 100, communication unit 250 is capable of wireless communication using standards such as Wi-Fi and Bluetooth, and communicates with each device via an access point or directly.

[0028] 6 is a block diagram showing an example of a schematic configuration of electronic device 300. Electronic device 300 is, for example, a smartphone, a tablet terminal, or a mobile phone carried by a user. Electronic device 300 may be a PC (Personal Computer). Electronic device 300 has, for example, a control unit 310, a communication unit 320, a display unit 330, an operation reception unit 340, and a voice input / output unit 350.

[0029] The control unit 310, like the control unit 130 of the ventilation device 100, has a CPU, RAM, ROM, etc., and controls each unit of the electronic device 300 and performs arithmetic processing.

[0030] The communication unit 320, like the communication unit 170 of the ventilator 100, is capable of wireless communication using standards such as Wi-Fi and Bluetooth, and communicates with each device directly or via an access point.

[0031] The display unit 330 and the operation receiving unit 340 are, for example, a touch panel display, which displays various information provided by the ventilation device 100 and receives input of instructions from the user for the ventilation device 100. The audio input / output unit 350 includes, for example, a microphone that converts sound into an electrical signal, and a speaker that converts the electrical signal into sound and outputs it as air vibrations.

[0032] [Functions of the control unit 130] 7 is a block diagram showing an example of the functions of the control unit 130. For example, the control unit 130 functions as an acquisition unit 131 and an output unit 132 by the CPU reading out various programs stored in advance in the ROM into the RAM and executing them.

[0033] The acquisition unit 131 acquires air information related to at least one of the indoor air and the outdoor air. The indoor air is the air inside the room in which the ventilation device 100 is installed. The outdoor air is the air outside the room in which the ventilation device 100 is installed, for example, the outdoor air. The acquisition unit 131 acquires, for example, air information related to both the indoor air and the outdoor air.

[0034] The air information is information that indicates the state of the air, and includes, for example, information on the air temperature, air humidity, and the concentration or amount of harmful substances contained in the air. Harmful substances contained in the air are, for example, carbon monoxide (CO), carbon dioxide (CO2), and particulate matter such as PM2.5. The acquisition unit 131 acquires the air information, for example, from external sensors installed inside and outside the room, via the communication unit 170. The ventilation device 100 may include a sensor that detects the state of the air. The acquisition unit 131 may acquire the air information from a website or the like via the communication unit 170.

[0035] Acquisition unit 131 may acquire air information continuously or intermittently. Acquisition unit 131 may acquire air information periodically or irregularly. Acquisition unit 131 may acquire air information, for example, when an instruction from a user is received via operation reception unit 120. Acquisition unit 131 may acquire air information in response to an instruction from a user via operation reception unit 340 of electronic device 300.

[0036] Output unit 132 outputs the air information acquired by acquisition unit 131. Output unit 132 outputs the air information, for example, by causing display unit 140 to display a predetermined screen. Display unit 140 displays a screen including, for example, the temperature, humidity, and concentration of harmful substances of at least one of the indoor air and the outdoor air. This allows the user to easily grasp the state of at least one of the indoor air and the outdoor air. Output unit 132 may output the air information by causing audio output unit 160 to output a predetermined sound.

[0037] The output unit 132 outputs, for example, air information relating to at least the outdoor air. This makes it easier for the user to predict changes in the air environment in the kitchen when the ventilation device 100 is operated. It is preferable that the output unit 132 outputs air information relating to both the indoor air and the outdoor air. This allows the user to compare the state of the indoor air with the state of the outdoor air, making it easier to perform appropriate ventilation.

[0038] Output unit 132 may output the air information by transmitting the air information acquired by acquisition unit 131 to electronic device 300. Electronic device 300 displays the air information received from ventilation device 100, for example, on display unit 330. This allows the user to easily grasp the state of at least one of the indoor air and the outdoor air, even if the user is in a location away from ventilation device 100.

[0039] FIG. 8 is a flowchart showing the procedure of the process executed by the control unit 130.

[0040] First, the control unit 130 acquires air information related to at least one of the indoor air and the outdoor air (step S101). After that, the control unit 130 outputs the air information acquired in step S101 (step S102) and ends the process.

[0041] [Functions and Effects of the Ventilation Device 100 and the Ventilation System 1] In the ventilation device 100 of the ventilation system 1 of this embodiment, air information on at least one of the indoor air and the outdoor air is acquired and output by the control unit 130. The output air information is displayed, for example, on the display unit 140 of the ventilation device 100 or the display unit 330 of the electronic device 300. This allows the user to easily grasp the state of at least one of the indoor air and the outdoor air. The effect of this will be described in detail below.

[0042] If a user operates a ventilation device without understanding the air condition, there is a risk that proper ventilation will not be achieved. For example, there is a risk that ventilation will be insufficient in the room, or that ventilation will continue even when it is not necessary.

[0043] In response to this, the ventilation device 100 of the ventilation system 1 outputs air information regarding at least one of the indoor air and the outdoor air. This allows the user to easily grasp the air condition and determine the necessity of ventilating the kitchen. This enables the user to perform appropriate ventilation.

[0044] It is preferable that the ventilation device 100 outputs air information regarding both the indoor air and the outdoor air, so that the user can compare the indoor air condition with the outdoor air condition and more accurately determine the necessity of ventilation in the kitchen.

[0045] As described above, in the ventilation device 100 and ventilation system 1 of the present embodiment, air information regarding at least one of the indoor air and the outdoor air is output by the output unit 132. The output unit 132 outputs the air information, for example, by causing the display unit 140 to display the air information. This allows the user to grasp the state of the surrounding air.

[0046] Hereinafter, other embodiments and modifications of the ventilation device 100 described in the above first embodiment will be described. In the following, in order to avoid duplication of explanation, detailed explanations of configurations similar to those of the ventilation device 100 described in the above first embodiment will be omitted.

[0047] <Second embodiment> 9 is a block diagram showing an example of the configuration of a ventilation device 100A according to the second embodiment. A control unit 130 of this ventilation device 100A functions as a determination unit 133 in addition to an acquisition unit 131 and an output unit 132. Except for this point, the ventilation device 100A described in the second embodiment has a similar configuration to the ventilation device 100 described in the first embodiment, and exerts the same effects.

[0048] The determination unit 133 determines whether ventilation of the kitchen is necessary based on the air information acquired by the acquisition unit 131. The determination unit 133 determines whether ventilation of the kitchen is necessary based on, for example, the acquired air information related to the indoor air. The determination unit 133 determines that ventilation of the kitchen is necessary, for example, when the acquired air information related to the indoor air satisfies a first ventilation condition. The determination unit 133 determines that ventilation of the kitchen is not necessary, for example, when the acquired air information related to the indoor air does not satisfy the first ventilation condition.

[0049] The first ventilation condition is, for example, that the value of a predetermined parameter of the indoor air is out of an appropriate range. The appropriate range of the predetermined parameter is, for example, stored in the control unit 130. The predetermined parameter is, for example, a carbon monoxide concentration, and the appropriate range is, for example, 50 ppm or less. The predetermined parameter is, for example, a carbon dioxide concentration, and the appropriate range is, for example, 1000 ppm or less. The predetermined parameter is, for example, temperature or humidity, and the appropriate range may be changed depending on the season. For example, the appropriate range in summer is a temperature of 25°C to 28°C and a humidity of 45% to 60%, and the appropriate range in winter is a temperature of 18°C ​​to 22°C and a humidity of 55% to 65%. The determination unit 133 may use an appropriate value such as 25°C instead of the above appropriate range.

[0050] The appropriate range of the predetermined parameter may be set by the user. For example, the operation reception unit 120 of the ventilator 100 receives an input of the appropriate range of the predetermined parameter from the user. The control unit 130 stores information regarding the appropriate range of the predetermined parameter input to the operation reception unit 120. The user may input the appropriate range of the predetermined parameter via the operation reception unit 340 of the electronic device 300. The control unit 130 stores information regarding the appropriate range of the predetermined parameter received from the electronic device 300.

[0051] The determination unit 133 may, for example, determine whether ventilation of the kitchen is necessary based on the acquired air information on the indoor air and the outdoor air. The determination unit 133 determines, for example, whether the acquired air information on the indoor air and the outdoor air satisfies a second ventilation condition. The determination unit 133 determines that ventilation of the kitchen is necessary, for example, when the acquired air information satisfies both the first ventilation condition and the second ventilation condition. The determination unit 133 determines that ventilation of the kitchen is unnecessary, for example, when the acquired air information does not satisfy at least one of the first ventilation condition and the second ventilation condition.

[0052] The second ventilation condition is, for example, that the value of the predetermined parameter of the outdoor air is closer to the appropriate range than the value of the predetermined parameter of the indoor air. The second ventilation condition may be that the value of the predetermined parameter of the indoor air and the value of the predetermined parameter of the outdoor air are within the appropriate range. The predetermined parameters are, for example, temperature and humidity.

[0053] The determination unit 133 may determine whether or not ventilation of the kitchen is necessary by making a composite judgment of a plurality of parameters. For example, both temperature and humidity contribute to the discomfort index. The determination unit 133 may determine whether or not ventilation of the kitchen is necessary based on such a discomfort index or the like.

[0054] When the determination unit 133 determines that ventilation of the kitchen is necessary, the output unit 132 outputs ventilation required information in addition to the air information acquired by the acquisition unit 131. The output unit 132 outputs the ventilation required information by having the notification unit notify that ventilation of the kitchen is necessary. The notification unit is, for example, the display unit 140 or the audio output unit 160. The output unit 132 outputs the ventilation required information by, for example, having the display unit 140 display that ventilation is necessary. The output unit 132 may output the ventilation required information by, for example, having the audio output unit 160 output a sound that ventilation is necessary. This can encourage the user to ventilate the kitchen. Therefore, it is possible to properly ventilate the kitchen.

[0055] The output unit 132 may output the ventilation requirement information by transmitting it to the electronic device 300. The electronic device 300 causes the ventilation requirement information received from the ventilation device 100 to be displayed on the display unit 330, for example.

[0056] When the determination unit 133 determines that ventilation of the kitchen is unnecessary, the output unit 132 may output information that ventilation is unnecessary. For example, after the user operates the ventilation device 100 and the ventilation device 100 starts ventilation, the air information acquired by the acquisition unit 131 no longer satisfies the second ventilation condition. For example, the value of the predetermined parameter of the indoor air and the value of the predetermined parameter of the outdoor air approach each other and become almost the same. That is, the change over time of the value of the predetermined parameter of the indoor air becomes small or disappears due to ventilation. At this time, the determination unit 133 determines that ventilation of the kitchen is unnecessary. Alternatively, the value of the predetermined parameter of the indoor air falls within an appropriate range and no longer satisfies the first ventilation condition. That is, the value of the predetermined parameter of the indoor air falls within the appropriate range due to ventilation. At this time, the determination unit 133 determines that ventilation of the kitchen is unnecessary.

[0057] The output unit 132 outputs ventilation unnecessary information by having the notification unit notify that ventilation in the kitchen is unnecessary. The notification unit is, for example, the display unit 140 or the audio output unit 160. The output unit 132 outputs ventilation unnecessary information by, for example, having the display unit 140 display that ventilation is unnecessary. The output unit 132 may output ventilation unnecessary information by, for example, having the audio output unit 160 output audio that ventilation is unnecessary. This allows the user to stop ventilation in the kitchen. Therefore, it is possible to prevent power consumption, etc., caused by unnecessary ventilation.

[0058] The determination unit 133 may determine the degree of necessity for ventilation in the kitchen based on the air information acquired by the acquisition unit 131. The determination unit 133 determines the degree of necessity for ventilation in multiple stages, such as high, medium, and low, for example. At this time, the output unit 132 outputs different determination information according to the degree of necessity for ventilation determined by the determination unit 133. This allows the user to easily recognize the degree of necessity for ventilation in the kitchen.

[0059] For example, when the difference between the indoor air temperature and the appropriate temperature range is less than 3 degrees, the judgment unit 133 judges the degree of necessity of ventilation to be small, when the difference between the indoor air temperature and the appropriate temperature range is 3 degrees or more and less than 6 degrees, the degree of necessity of ventilation to be medium, and when the difference between the indoor air temperature and the appropriate temperature range is 6 degrees or more, the degree of necessity of ventilation to be large.

[0060] For example, when the carbon dioxide concentration of the indoor air is less than 700 ppm, the judgment unit 133 judges the degree of necessity for ventilation to be small, when the carbon dioxide concentration of the indoor air is equal to or greater than 700 ppm and less than 1000 ppm, the degree of necessity for ventilation to be medium, and when the carbon dioxide concentration of the indoor air is equal to or greater than 1000 ppm, the degree of necessity for ventilation to be large.

[0061] The output unit 132 outputs different determination information, for example, by changing the display method by the display unit 140 or the display unit 330. For example, the output unit 132 outputs different determination information by changing at least one color of the characters, the image, and the background displayed on the display unit 140 or the display unit 330.

[0062] The output unit 132 outputs different determination information, for example, by changing the lighting method used by the lighting unit 150. For example, the output unit 132 outputs different determination information by changing the color of the lighting used by the lighting unit 150. The output unit 132 may output different determination information by changing at least one of the speed and number of times the lighting used by the lighting unit 150 blinks.

[0063] The output unit 132 outputs different determination information, for example, by changing the audio output method by the audio output unit 160 or the audio input / output unit 350. For example, the output unit 132 outputs different determination information by changing at least one of the type of sound and the interval of the sound output by the audio output unit 160 or the audio input / output unit 350. The output unit 132 may output different determination information by changing the sound output by the audio output unit 160 or the audio input / output unit 350. For example, when the determination unit 133 determines that the necessity of ventilation is high, the audio output unit 160 or the audio input / output unit 350 outputs a sound saying "Ventilation is required." When the determination unit 133 determines that the necessity of ventilation is low, the audio output unit 160 or the audio input / output unit 350 outputs a sound saying "Ventilation is not required." The audio output unit 160 or the audio input / output unit 350 may output a sound such as "Air level 1" or "Air level 3" depending on the necessity of ventilation.

[0064] A plurality of parameters may be included in the air information output by output unit 132. For example, output unit 132 outputs air information including the temperature and humidity of each of the indoor air and the outdoor air.

[0065] FIG. 10 is a flowchart showing the procedure of the process executed in the control unit 130.

[0066] First, the control unit 130 acquires air information related to at least one of the indoor air and the outdoor air (step S201). Next, the control unit 130 determines whether or not ventilation of the kitchen is necessary based on the air information acquired in step S201 (step S202). When it is determined that ventilation of the kitchen is not necessary (step S202: NO), the control unit 130 outputs the air information acquired in step S201 (step S208) and ends the process.

[0067] When it is determined that ventilation of the kitchen is necessary (step S202: YES), the control unit 130 outputs ventilation required information in addition to the air information acquired in step S201 (step S203). The control unit 130 outputs the ventilation required information, for example, by causing the display unit 140 to display that ventilation is necessary. Based on the output air information and ventilation required information, the user can operate the ventilation device 100.

[0068] When the control unit 130 receives an input of an instruction to start ventilation from the user (step S204), it drives the fan motor 117 and the filter motor 119 to rotate the fan 116 and the filter 118. This starts ventilation of the kitchen.

[0069] After starting ventilation, the control unit 130 acquires air information (step S205) and determines whether ventilation of the kitchen is necessary (step S206). When it is determined that ventilation of the kitchen is necessary (step S206: YES), the control unit 130 continues ventilation and repeats the process of step S205. When it is determined that ventilation of the kitchen is not necessary (step S206: NO), the control unit 130 outputs ventilation unnecessary information and ends the process. The control unit 130 outputs the ventilation unnecessary information, for example, by causing the display unit 140 to display a message indicating that ventilation is unnecessary. The user can stop the ventilation device 100 based on the output ventilation unnecessary information.

[0070] Thus, in ventilation device 100A according to the present embodiment, similarly to the above-described ventilation device 100, air information regarding at least one of the indoor air and the outdoor air is output by output unit 132. Output unit 132 outputs the air information, for example, by causing display unit 140 to display the air information. This allows the user to grasp the state of the air.

[0071] In addition, the ventilation device 100A judges whether ventilation is necessary in the kitchen, and outputs ventilation required information when ventilation is necessary. This allows the user to perform more appropriate ventilation and easily create a comfortable air environment in the kitchen. In particular, even if the parameter is difficult for the user to judge, the user can know the timing to start ventilation based on the output ventilation required information, and can perform appropriate ventilation.

[0072] <Variation 1> 11 is a block diagram showing an example of a functional configuration of a control unit 130 of a ventilation device 100A according to Modification 1. This control unit 130 functions as a setting unit 134 in addition to an acquisition unit 131, an output unit 132, and a determination unit 133. Except for this point, the ventilation device 100A according to Modification 1 has a similar configuration to the ventilation device 100A described in the second embodiment above, and exerts the same effects.

[0073] The setting unit 134 sets at least one of the upper limit and the lower limit of the appropriate range of the predetermined parameter that can be accepted by the operation acceptance unit 120 or the operation acceptance unit 340. The user can input the appropriate range of the predetermined parameter within the range set by this setting unit 134. The setting unit 134 sets at least one of the upper limit and the lower limit of the appropriate range between the value of the predetermined parameter of the indoor air and the value of the predetermined parameter of the outdoor air, for example. This allows the user to know the range of the predetermined parameter that can be adjusted by the ventilation device 100, and to input the appropriate range within this adjustable range. In other words, since the user does not set the appropriate range to a range outside the adjustable range, it is difficult for ventilation to continue wastefully.

[0074] <Variation 2> 12 is a block diagram showing an example of a functional configuration of the control unit 130 of the ventilation device 100A according to Modification 2. This control unit 130 functions as a target value setting receiving unit 135 and an operation control unit 136 in addition to an acquisition unit 131, an output unit 132, a determination unit 133 and a setting unit 134. Except for this point, the ventilation device 100A according to Modification 2 has the same configuration as the ventilation device 100A described in Modification 1 above, and exerts the same effects.

[0075] The target value setting receiving unit 135 receives, for example, a target value setting for a predetermined parameter of the indoor air. The target value is a value of the predetermined parameter that is a target when forming a comfortable air environment, for example, a temperature of 25°C. The target value is set, for example, according to the user's preference. The target value setting is received, for example, from the user via the operation receiving unit 120 or the operation receiving unit 340. For example, the user inputs a target value for the temperature of the indoor air to the operation receiving unit 120. As a result, the target value setting receiving unit 135 receives the target value setting. The control unit 130 stores information related to the target value of the predetermined parameter input to the operation receiving unit 120 or the operation receiving unit 340. The target value setting receiving unit 135 may receive a target range setting, such as 25°C to 28°C.

[0076] The setting unit 134 sets at least one of an upper limit and a lower limit of a target value of a predetermined parameter that can be received by the operation receiving unit 120 or the operation receiving unit 340. The user can input a target value of the predetermined parameter within the range set by this setting unit 134. For example, the setting unit 134 sets at least one of an upper limit and a lower limit of the target value between the value of the predetermined parameter of the indoor air and the value of the predetermined parameter of the outdoor air. This allows the user to know the range of the predetermined parameter that can be adjusted by the ventilation device 100, and to input a target value within this adjustable range. In other words, the user will not set a target value outside the range that can be adjusted by the ventilation device 100, so that ventilation is less likely to continue wastefully.

[0077] The determination unit 133, for example, compares the air information related to the indoor air acquired by the acquisition unit 131 with the target value accepted by the target value setting acceptance unit 135 to determine whether ventilation of the kitchen is necessary. For example, the determination unit 133 determines that ventilation of the kitchen is necessary when the value of a predetermined parameter of the acquired air information related to the indoor air is outside the target value. For example, the determination unit 133 determines that ventilation of the kitchen is not necessary when the value of a predetermined parameter of the acquired air information related to the indoor air corresponds to the target value.

[0078] The determination unit 133 may determine whether or not ventilation of the kitchen is necessary, based on the air information related to the indoor air and the outdoor air acquired by the acquisition unit 131. For example, even if the value of a predetermined parameter of the acquired air information related to the indoor air deviates from a target value, when the value of the predetermined parameter of the indoor air is the same as the value of the predetermined parameter of the outdoor air, it is determined that ventilation of the kitchen is unnecessary.

[0079] When determination unit 133 determines that ventilation of the kitchen is necessary, output unit 132 outputs ventilation required information in addition to the air information acquired by acquisition unit 131. Output unit 132 outputs the ventilation required information, for example, by outputting the ventilation required information to operation control unit 136. Output unit 132 may output the ventilation required information and the air information at different times.

[0080] When the determination unit 133 determines that ventilation of the kitchen is not necessary, the output unit 132 may output ventilation not necessary information.

[0081] The operation control unit 136 controls the blower box 110, specifically the fan motor 117, etc., based on the ventilation required information and the ventilation unnecessary information output by the output unit. For example, the operation control unit 136 instructs the fan motor 117, etc. to start ventilation based on the ventilation required information, and instructs the fan motor 117, etc. to stop ventilation based on the ventilation unnecessary information. When the difference between the current value (detection value) of a predetermined parameter of the indoor air at the start of ventilation and the target value is large, the operation control unit 136 instructs ventilation at a relatively large air volume, for example, and when the difference between the current value and the target value becomes close, instructs ventilation at a smaller air volume. When the current value exceeds the target value, the operation control unit 136 may instruct ventilation at a smaller air volume. As a result, the air environment in the kitchen approaches the target value by ventilation, and ventilation is stopped after the target value is reached. Therefore, the user can adjust the air environment to his / her preference without much effort. In addition, it becomes difficult for ventilation to continue wastefully.

[0082] FIG. 13 is a flowchart showing the procedure of the process executed in the control unit 130.

[0083] First, the control unit 130 receives a target value setting for a predetermined parameter of the indoor air (step S301). Next, the control unit 130 acquires air information related to the indoor air (step S302). Next, the control unit 130 compares the target value received in step S301 with the air information acquired in step S302 to determine whether ventilation of the kitchen is necessary (step S303).

[0084] When it is determined that ventilation of the kitchen is not necessary (step S303: NO), control unit 130 outputs air information (step S310) and ends the process.

[0085] When it is determined that ventilation of the kitchen is necessary (step S303: YES), the control unit 130 outputs ventilation required information (step S304) and instructs the blower box 110 to ventilate (step S305). This causes the fan motor 117 and the like to start operating, and ventilation begins. Next, the control unit 130 acquires air information related to the indoor air (step S306). Next, the control unit 130 compares the target value received in step S301 with the air information acquired in step S306 to determine whether ventilation of the kitchen is necessary (step S307).

[0086] When it is determined that ventilation of the kitchen is not necessary (step S307: NO), the control unit 130 outputs ventilation unnecessary information (step S308) and instructs the blower box 110 to stop ventilation (step S309). After this, the control unit 130 proceeds to the process of step S310. After instructing the blower box 110 to stop ventilation, the control unit 130 may return to the process of step S302.

[0087] When it is determined that ventilation of the kitchen is not necessary (step S307: NO), the control unit 130 may output air information without outputting ventilation unnecessary information (step S310). When it is determined that ventilation of the kitchen is not necessary (step S307: NO), the control unit 130 may cause the blower box 110 to continue ventilation.

[0088] When it is determined that ventilation of the kitchen is necessary (step S307: YES), the control unit 130 repeats the processes of steps S306 and S307.

[0089] The ventilation device and ventilation system of the present invention have been described above in the embodiments and modified examples. However, the present invention can be appropriately added to, modified, and omitted by a person skilled in the art within the scope of the technical concept. For example, the configurations, shapes, sizes, etc. of the components of the ventilation device and ventilation system described in the above embodiments are merely examples, and other configurations, shapes, sizes, etc. may be used.

[0090] In addition, in the above-mentioned modified example 2, an example has been described in which the operation control unit 136 instructs the blower box 110 from the start of ventilation to the stop of ventilation, but the operation control unit 136 may be configured to control a part of the process until a predetermined parameter of the indoor air reaches a target value. For example, after the user presses the operation switch 121 to start ventilation, the operation control unit 136 may control the air volume, etc., so that the target value is reached. [Explanation of symbols]

[0091] 1 ventilation system, 100 ventilation equipment, 110 Blower Box 120 Operation reception unit, 130 control section, 140 Display section, 150 Lighting department, 160 Audio output unit, 170 Communications Department, 200 cookers, 210 Heat source, 220 Grill, 230 control section, 240 Operation reception unit, 250 Communications Department, 300 electronic equipment, 310 control section, 320 Communications Department, 330 display section, 340 Operation reception unit, 350 Audio input / output section.

Claims

1. A ventilation section for ventilating the kitchen; an acquisition unit that acquires air information regarding at least one of indoor air inside a room in which the kitchen is provided and outdoor air outside the room; an output unit that outputs the acquired air information; A kitchen ventilation system equipped with:

2. The kitchen ventilation device according to claim 1 , wherein the acquisition unit acquires at least the air information related to the outdoor air.

3. The kitchen ventilation device according to claim 1 , wherein the acquisition unit acquires at least the air information related to the indoor air.

4. Further comprising a determination unit that determines whether or not ventilation of the kitchen is required based on the acquired air information, The kitchen ventilation device according to claim 3 , wherein when it is determined that ventilation of the kitchen is necessary, the output unit further outputs ventilation requirement information.

5. The kitchen ventilation device according to claim 4 , wherein the output unit outputs the ventilation requirement information by causing a notification unit to notify that ventilation of the kitchen is required.

6. The kitchen ventilation device according to claim 4, wherein the determination unit determines that ventilation of the kitchen is necessary when a predetermined parameter of the indoor air is outside an appropriate range of the parameter stored in the memory unit.

7. Further comprising an operation control unit that controls the ventilation unit based on the ventilation requirement information output by the output unit, The kitchen ventilation device according to claim 4, wherein the determination unit determines that ventilation of the kitchen is necessary when a predetermined parameter of the indoor air deviates from a target value of the parameter stored in the memory unit.

8. The kitchen ventilation device according to claim 7 , further comprising a receiving unit that receives an input of the target value of the parameter.

9. The kitchen ventilation device according to claim 8 , further comprising a setting unit that sets at least one of an upper limit and a lower limit of the target value of the parameter that can be accepted by the accepting unit.

10. The kitchen ventilation device according to claim 7 , wherein when the determination unit determines that ventilation of the kitchen is unnecessary after the ventilation unit starts ventilation, the output unit further outputs ventilation unnecessary information.

11. The kitchen ventilation device according to claim 10, wherein the operation control unit instructs the ventilation unit to stop ventilation based on the ventilation unnecessary information.

12. The acquisition unit acquires the air information regarding the indoor air and the outdoor air, The kitchen ventilation device according to claim 4 , wherein the determination unit determines whether or not ventilation of the kitchen is required based on the air information related to the indoor air and the outdoor air.

13. Further comprising a determination unit that determines the necessity of ventilation of the kitchen based on the acquired air information, The kitchen ventilation device according to claim 1 , wherein the output unit outputs different determination information depending on the determined degree of necessity for ventilation.

14. The kitchen ventilation device according to claim 13, wherein the output unit outputs different pieces of determination information by changing a display method by a display unit.

15. The kitchen ventilation device according to claim 13, wherein the output unit outputs different pieces of determination information by changing an illumination method used by an illumination unit that illuminates the kitchen.

16. The kitchen ventilation device according to claim 13, wherein the output unit outputs different pieces of determination information by changing an audio output method by an audio output unit.

17. The kitchen ventilation device according to claim 1 , wherein the ventilation section is configured to be controllable based on instruction information transmitted from an external electronic device.

18. The kitchen ventilation device according to claim 1 , wherein the output unit outputs the air information by transmitting it to an external electronic device.

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