JP2020071000A - Range hood - Google Patents

Abstract

To provide a range hood that is less likely to make a user feel annoyed even during automatic operation.SOLUTION: A range hood has: a temperature sensor 300 as a cooking state monitoring unit that monitors a cooking state in a cooker 200; an exhaust fan 116 capable of changing an air volume; a storage unit 134 that stores a threshold temperature for changing the air volume and an air volume corresponding to the threshold temperature; and a control unit 136 that compares a temperature above the cooking device 200 detected by the temperature sensor 300 with the threshold temperature and changes the air volume of the exhaust fan 116 corresponding to the threshold temperature. The control unit 136 receives an input for setting the air volume corresponding to the threshold temperature, and stores an air volume corresponding to the input threshold temperature in the storage unit.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a range hood.

  BACKGROUND ART Conventionally, there is known a range hood with an automatic operation function that detects the temperature above a cooking device by a temperature sensor provided in the range hood and automatically controls the air volume of the range hood based on the detected temperature.

  The conventional range hood with an automatic operation function is selected so that the rotation speed of the rotating object becomes an appropriate rotation speed based on the temperature detected above the cooking device. For example, in Patent Document 1, the air volume of an exhaust fan, which is a rotating object, is selected based on the temperature detected above the cooking device. Further, in Patent Document 2, based on the temperature detected above the cooking device, the rotation speed of the rotary filter, which is a rotating object, is selected together with the air volume of the exhaust fan.

JP, 2009-121751, A JP, 2018-105568, A

  However, conventionally, during automatic driving, the entire rotating area of the rotating object is used for rotation, and some users feel that automatic driving is troublesome.

  Therefore, an object of the present invention is to provide a range hood that is less likely to be annoying to the user even during automatic driving.

  The range hood of the present invention for achieving the above object is a cooking state monitoring unit for monitoring a cooking state in a cooking device, an exhaust fan capable of changing the air volume, and a cooking state and its cooking for changing the air volume. A storage unit that stores the air volume according to the state, a control unit that compares the cooking state monitored by the cooking state monitoring unit with the cooking state stored in the storage unit, and changes the air volume according to the cooking state. , And the control unit receives an input for setting the air volume according to the cooking state, and stores the air volume according to the cooking state in the storage unit.

  Further, the range hood of the present invention for achieving the above object is a cooking state monitoring unit for monitoring a cooking state in a cooker, an exhaust fan whose air volume can be changed, and an upstream of an air flow produced by the exhaust fan for exhaust. A rotating filter which is provided on the side and whose rotation speed can be changed, a storage unit which stores a cooking state and an air volume and a rotation number corresponding to the cooking state in order to change the air volume and the rotation number, and a cooking state monitoring unit And a control unit that compares the cooked state monitored by the cooked state with the cooked state stored in the storage unit and changes the air volume and the number of rotations according to the cooked state. In response to the input for setting the number, the number of rotations corresponding to the cooking state is stored in the storage unit.

  In addition, the range hood of the present invention for achieving the above object is a cooking state monitoring unit that monitors a cooking state in a cooker, an exhaust fan that can change the air volume, and a cooking state and its in order to change the air volume. The storage unit that stores the air volume according to the cooking state is compared with the cooking state that is monitored by the cooking state monitoring unit as the automatic mode and the cooking state that is stored in the storage unit, and the air volume that corresponds to the cooking state is determined. The storage unit stores a partial air volume range selected from the air volume range used as the manual mode as the air volume used in the automatic mode.

  Further, the range hood of the present invention for achieving the above object is a cooking state monitoring unit for monitoring a cooking state in a cooker, an exhaust fan whose air volume can be changed, and an upstream of an air flow produced by the exhaust fan for exhaust. A rotating filter that is provided on the side and that can change the rotation speed, a storage unit that stores the cooking state and the rotation number according to the cooking state in order to change the rotation number, and a cooking state monitoring unit as an automatic mode. And a control unit that compares the cooking state monitored by the storage unit with the cooking state stored in the storage unit and changes the number of rotations according to the cooking state, and the storage unit has a range of the number of rotations used as the manual mode. A partial range of the number of rotations selected from is stored as the number of rotations used in the automatic mode.

  According to the present invention, in response to the input for setting the air volume according to the cooking state, the air volume corresponding to the input cooking state is stored in the storage unit, and the cooking state monitored by the cooking state monitoring unit and the storage unit are stored. It was decided to compare the stored cooking states and change the air volume according to the cooking states. Therefore, when performing automatic operation, the exhaust fan can be operated within the range of the air volume desired by the user. Therefore, the user is less likely to feel annoyed even during automatic driving, and a comfortable space can be provided.

  Further, according to the present invention, in the range hood having the rotating filter, the input of setting the number of rotations of the filter according to the cooking state is received, and the number of rotations of the filter corresponding to the input cooking state is stored in the storage unit. The cooking state stored and monitored by the cooking state monitoring unit is compared with the cooking state stored in the storage unit to change the number of rotations according to the cooking state. Therefore, when performing automatic operation, the filter can be operated within the range of the number of revolutions that the user likes. Therefore, the user is less likely to feel annoyed even during automatic driving, and a comfortable space can be provided.

  Further, according to the present invention, the range of the air volume used in the automatic mode is limited to a part of the range of the air volume selectable in the manual mode. As a result, since the fan is operated using only a part of the rotatable area, the air volume does not change significantly during automatic operation. As a result, the user is less likely to feel annoyed even during automatic driving, and a comfortable space can be provided.

  Further, according to the present invention, when the rotating filter is used in the automatic mode, only a part of the range of the rotational speed that can be selected in the manual mode is used. As a result, only a part of the rotatable region of the rotating filter is used for operation, so that the rotational speed does not change significantly during automatic operation. As a result, the user is less likely to feel annoyed even during automatic driving, and a comfortable space can be provided.

It is a front view at the time of installing the range hood which concerns on this embodiment in a kitchen. It is a side view at the time of installing the range hood which concerns on this embodiment in a kitchen. It is a front view of the operation panel 120 with which the range hood 100 of this embodiment is equipped. It is a block diagram of a control system of range hood 100 of this embodiment. It is a flow chart which shows a processing procedure for simple setting in which a user sets up air volume. It is a flow chart which shows a processing procedure of altitude setting in which a user sets up air volume finely.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiments. Note that each drawing is exaggerated for convenience of description. Therefore, the dimensional ratio of each component in each drawing is different from the actual one. In addition, the same reference numerals are given to the same elements in the drawings, and overlapping description in the specification will be omitted.

(Embodiment 1)
(Structure of range hood)
FIG. 1 is a front view when the range hood according to the present embodiment is installed in a kitchen. Further, FIG. 2 is a side view when the range hood according to the present embodiment is installed in a kitchen.

  As shown in FIGS. 1 and 2, the range hood 100 of the present embodiment is installed on the top of the cooker 200. The range hood 100 absorbs odors, smoke, oil, and other odors and oil fumes that are generated when the cooker 200 cooks, and exhausts the odors to the outside. In addition, the illustrated cooking device 200 has three heat sources 210 (a generic term for the three heat sources) and a grill outlet 220. In the present specification, the heat source means a burner for a gas cooker and a heater (also called an IH cooking heater) for an IH cooker. In the figure, a burner is shown as the heat source 210.

  The range hood 100 has a temperature sensor 300 as a cooking state monitoring unit. The temperature sensor 300 is provided on the lower surface on the front side on the left side of the central portion of the range hood 100, and detects the temperature above the cooking device 200. More specifically, this temperature sensor 300 detects the temperature of the space from the top surface of the cooking device 200 to the temperature sensor 300, as shown by the dotted line in the figure. The temperature sensor 300 is, for example, a compound eye temperature sensor formed of 64 area sensors of 8 × 8. Therefore, the temperature sensor 300 can detect the top surface of the cooking device 200 by dividing it into 64 areas. In this embodiment, the temperature sensor 300 as described above monitors the cooking state of the cooking device 200 as a change in temperature (the same applies to modified examples and other embodiments described later). Although the compound eye temperature sensor is used in this embodiment, a monocular temperature sensor may be used.

  The range hood 100 is provided with an exhaust unit 110 on its upper part. The exhaust unit 110 exhausts odors and oil smoke from the cooking device 200. The exhaust unit 110 sucks the oil smoke from the cooking device 200, the exhaust port 114 communicating with the outdoors, and the oil smoke sucked from the intake port 112 into the passage connecting the intake port 112 and the exhaust port 114 to the exhaust port 114. An exhaust fan 116 for exhausting air is provided. The exhaust fan 116 is a rotating object and is driven by the fan motor 117. Further, a filter 118 (disk) for removing oil from oil smoke sucked from the intake port 112 is provided on the upstream side of the air flow created by the exhaust fan 116 for exhaust air, here between the intake port 112 and the exhaust fan 116. There is. The filter 118 is rotated by the filter motor 119.

  The range hood 100 is provided with an operation panel 120 for instructing the operation of the range hood 100 on the upper front surface side.

  FIG. 3 is a front view of the operation panel 120 included in the range hood 100 of this embodiment. The operation panel 120 includes an operation switch 121, an air volume switch 122, an air volume automatic switch 123, a timer switch 124, a lighting switch 125, and a constant ventilation switch 126.

  The operation switch 121 is a switch for operating the range hood 100. The air volume switch 122 is a switch for manually switching the air volume of the exhaust fan 116 between low, medium, and high. The air volume automatic switch 123 is a switch for automatically controlling the air volume of the exhaust fan 116 and the rotation number of the filter 118 according to the temperature above the cooking device 200 detected by the temperature sensor 300. This automatic switching mode is called automatic mode. The timer switch 124 is a switch for setting the time for rotating the exhaust fan 116 after cooking is completed. The illumination switch 125 is a switch for turning on / off the LED bulb that illuminates the upper surface of the cooking device 200. The constant ventilation switch 126 is a switch for operating / stopping the constant ventilation by manually rotating / stopping the exhaust fan 116.

  FIG. 4 is a block diagram of a control system of the range hood 100 of this embodiment. The range hood 100 includes an exhaust fan 116, a fan motor 117, a filter 118, a filter motor 119, an operation panel 120, a control device 130, and a temperature sensor 300.

  The exhaust fan 116, the fan motor 117, the filter 118, the filter motor 119, the operation panel 120, and the temperature sensor 300 are as described above. The control device 130 is built in the range hood 100.

  The control device 130 includes a gas / IH selection switch 132, a storage unit 134, and a control unit 136. The gas / IH selection switch 132 may be provided on the operation panel 120.

  The gas / IH selection switch 132 is a selection switch for selecting whether the type of cooker in the kitchen in which the range hood 100 is installed is a gas cooker or an IH cooker. The gas / IH selection switch 132 is operated by an operator when the range hood 100 is installed on the site or by a user before the range hood 100 starts to be used.

  The storage unit 134 stores the threshold temperature indicating the cooking state and the air volume of the exhaust fan 116 corresponding to the threshold temperature so that the air volume of the exhaust fan 116 becomes the air volume according to the cooking state in the automatic mode. The rotation speed of the filter 118 is stored. When the temperature sensor 300 is a compound eye sensor, it is stored in association with each area. In the case of a monocular sensor, the threshold temperature is stored as one area. As will be described later, the storage unit 134 stores the first threshold temperature and the second threshold temperature at the time of standard setting, the air volume of the exhaust fan 116 and the rotation speed of the filter 118 corresponding to these threshold temperatures, and in addition to being stored by the user. The air volume of the exhaust fan 116 and the number of rotations of the filter 118 corresponding to the set threshold temperature are also stored.

  In the actual control, in consideration of convenience, the air volume of the exhaust fan 116 stored in the storage unit 134 stores the rotation speed (rotation speed) of the fan motor 117 corresponding to the air volume, and the rotation of the filter 118. As the number, the number of revolutions (rotation speed) of the filter motor 119 corresponding to the number of revolutions of the filter may be stored. In this case, the control unit 136 compares the temperature detected by the temperature sensor 300 with the threshold temperature read from the storage unit 134, and if the temperature detected by the temperature sensor 300 reaches the threshold temperature, the control unit 136 responds to the threshold temperature. Each motor is controlled so that the rotation speed (rotation speed) of each motor is reached. Furthermore, in addition to the rotation speed (rotation speed) of each motor, depending on the specifications and control method of the motor, the air volume corresponding to the threshold temperature and the voltage value and current value for setting the filter rotation speed are stored. You can leave it.

(Operation of control unit)
In the present embodiment, as the operation mode of the air volume of the exhaust fan 116 and the rotation speed of the filter 118, the first mode in which the air volume of the exhaust fan 116 is “weak” and the rotation speed of the filter 118 is “low”, and the operation mode of the exhaust fan 116 is Three modes: a second mode in which the air volume is "medium" and the rotational speed of the filter 118 is "medium", and a third mode in which the air volume of the exhaust fan 116 is "strong" and the rotational speed of the filter 118 is "high". Is equipped with. In the manual mode, the operation of the air volume switch 122 switches to the first mode when "weak" is selected, the second mode when "medium" is selected, and the third mode when "strong" is selected. ..

  In the automatic mode, the air volume and the filter rotation speed are controlled according to the temperature detected by the temperature sensor 300. In the automatic mode, the control unit 136 compares the temperature above the cooking device 200 detected by the temperature sensor 300 with the threshold temperature stored in the storage unit 134, and the temperature above the cooking device 200 exceeds the threshold temperature. In this case, the operation mode is set to the threshold temperature. Therefore, the rotation speeds of the fan motor 117 and the filter motor 119 are switched so that the air flow rate and the filter rotation speed of the operation mode are set. Of course, when the detected temperature drops, the reverse switching is performed.

  Regarding the relationship between the threshold temperature and the operation mode (the first to third modes), the standard setting (default) is stored in the storage unit 134 so that the operation can be performed in the automatic mode even when the setting is not made by the user. ing. For example, a first threshold temperature when shifting from the first mode to the second mode and a second threshold temperature when shifting from the second mode to the third mode are stored in advance. The relationship between the first threshold temperature and the second threshold temperature is that the first threshold temperature <the second threshold temperature. The first and second threshold temperatures may be set to different values for the gas threshold temperature and the IH threshold temperature. For example, both the first threshold temperature and the second threshold temperature are lower in the threshold temperature for the IH cooker than in the gas cooker. This is because the cooking temperature of the cooking device 200 for IH tends to be lower than the cooking temperature of the cooking device 200 for gas. In the standard setting, the operation mode at the start of automatic operation is, for example, the first mode. Further, for example, as the standard setting, the operation mode at the start may be the operation mode at the previous stop. In that case, after the operation is started, the operation mode is switched according to the detected temperature above the cooking device 200.

  The change of the air volume setting in the automatic mode by the user will be described. Here, there are a simple setting whose setting can be easily changed and an advanced setting which is more suited to the user's preference.

(Simple setting)
First, the simple setting will be described. In the simple setting, a plurality of air volumes are prepared in advance as selectable air volumes, and the user is allowed to select and use a part of the air volumes. Here, the setting is such that the user can select whether the air volume is weaker or stronger. That is, of the air volumes "weak", "medium", and "strong" that can be manually selected, the weaker settings are settings in which the air volume "strong" is not used. On the other hand, the strong setting is a setting in which the air volume "weak" is not used.

  FIG. 5 is a flowchart showing a processing procedure for simple setting in which the user sets the air volume. This processing is performed by the control unit 136 executing a program based on a processing procedure for simple setting stored in advance.

  The control unit 136 determines whether or not the automatic mode simple setting has been entered from the operation panel 120 (S11). The input for entering the simple setting of the automatic mode is, for example, long pressing of the automatic air volume switch 123 (for example, 3 seconds or more). Such a switch operation is described in an instruction manual, for example. Further, a display such as "simple setting for long press for 3 seconds" may be attached to the air volume automatic switch 123 of the operation panel 120. Furthermore, it may be attached on a range hood by describing it on a sticker or the like so that the user can put it on any place. The same applies to the input and operation described below. The input method and operation method may be described in the instruction manual, displayed on the operation panel 120, or described on a sticker or attached or attached. It is preferable that

  When S11 is NO, the normal operation is continued as it is. For example, this operation (long press of the air volume automatic switch 123) is an interrupt operation to the control unit 136 until the operation is performed. The processing program itself for simple settings is not executed.

  If S11 is YES, the control unit 136 first emits a beep sound (which may be an intermittent sound such as a beep sound) to notify the user that the processing operation of the simple setting has been started (S12). Then, the control unit 136 determines whether there is a weak input or a strong input from the operation panel 120 (S13).

  In S13, when the control unit 136 determines that there is a weak input (S13: weak input), the operation is performed in the first mode at the start of operation, the second threshold temperature is added to the first threshold temperature, and the second threshold is set. The temperature is deleted, and this is stored in the storage unit 134 as a weaker setting (S14). As described above, the first threshold temperature is the threshold temperature when shifting from the first mode to the second mode. Therefore, due to this setting, the temperature set to the first threshold temperature becomes the second threshold temperature, so that the air volume is switched even if the temperature detected by the temperature sensor 300 reaches the original first threshold temperature. There is no such thing. On the other hand, when the temperature detected by the temperature sensor 300 reaches the same temperature as the second threshold temperature, the first mode is switched to the second mode. That is, the air volume is switched from "weak" to "medium". In addition, since the second threshold temperature for switching from the second mode to the third mode is deleted, switching to the third mode is not performed even when the original second threshold temperature is reached. Driving will stop.

  On the other hand, in S13, when the control unit 136 determines that there is a strong input (S13: strong deviation), the operation starts in the second mode at the start of operation, the first threshold temperature is deleted, and the strong deviation is set. Is stored in the storage unit 134 (S15). With this setting, the operation is started in the second mode (air volume “medium”) from the start of the operation, and when the second threshold temperature is reached, the second mode is switched to the third mode. That is, the air volume is switched from "medium" to "strong". Therefore, the operation in the first mode (air volume "weak") is not performed.

  After the setting in S14 or S15, or when there is no input in S13 (S13: no input), the control unit 136 subsequently determines whether or not reset has been input (S16). The reset input is, for example, long pressing or double pressing of the timer switch 124. When the reset is input (S16: YES), the control unit 136 restores the automatic mode setting set in the storage unit 134 to the standard setting (S17).

  When the reset is not input in S16 (S16: NO), the control unit 136 determines whether or not the setting end is input (S18). When the setting end is not input here, the control unit 136 determines S13. Return to and repeat the subsequent processing until some input is made. On the other hand, when the setting end is input, the control unit 136 ends the automatic driving setting process by the user. The input of setting end is, for example, pressing the automatic air volume switch 123 twice.

  From the above, according to the user's preference, even in automatic driving, it is possible to prevent strong winds from operating (weaker setting), or to exhaust to a certain extent (more than "medium") from the start of operation (stronger setting). Can be set).

  Note that here, as simple settings, the selection candidates that use the weak air volumes "weak" and "medium" and the selection candidates that use the strong air volumes "medium" and "strong" are shown, but the present invention is not limited to this. Instead, for example, a combination of air volumes “weak” and “strong” (that is, “medium” is not used) may be candidates for selection. In this case, the first mode is set at the start of automatic operation, and the first threshold temperature is deleted. As a result, the operation is started with the air volume "weak", and when the second threshold temperature is reached, "weak" is switched to "strong".

(Altitude setting)
Next, the altitude setting will be described. For the altitude setting, for example, the user can arbitrarily set the air volume for each operation mode (first mode to third mode). However, in order to perform this altitude setting, it is necessary to use, as the fan motor 117, a motor capable of changing the number of revolutions in three or more steps or infinitely.

  FIG. 6 is a flowchart showing a processing procedure of altitude setting in which the user finely sets the air volume. This processing is performed by the control unit 136 executing a program stored in advance based on the processing procedure for altitude setting.

  The control unit 136 determines whether or not the altitude setting in the automatic mode has been entered from the operation panel 120 (S21). The input for entering the altitude setting in the automatic mode is, for example, long pressing of the air volume automatic switch 123 (for example, pressing for 3 seconds or more, opening for 1 second, and 3 seconds or more). Similar to the simple setting, such switch operation is also described in the instruction manual, for example. In addition, it is advisable to write it on a sticker or the like and put it on the range hood, or attach the sticker so that the user can put it on any place. However, with respect to the display on the operation panel 120, since the operation content becomes long, it is difficult in reality, but it may be displayed if possible. The same applies to other inputs and operations.

  If S21 is NO, the normal operation is continued as it is. For example, this operation (long press of the air volume automatic switch 123 twice) is an interrupt operation to the control unit 136, so that this operation is performed. The processing program itself for setting the altitude will not be executed until it is told.

  When S21 is YES, the control unit 136 first makes one beep sound (may be a beep sound or the like) to notify the user that the altitude setting processing operation has been started (S22). Initially, it also indicates that the air volume has been changed in the first mode by ringing once.

  Then, the control unit 136 determines whether there is an input for changing the air volume from the operation panel 120 (S23). For input of air volume change, for example, the air volume automatic switch 123 and the air volume switch 122 are simultaneously pressed to reduce the air volume. The air volume is increased by simultaneously pressing the air volume automatic switch 123 and the timer switch 124.

  In S23, if there is an input to reduce the air volume (S23: lower), the control unit 136 causes the fan motor for the operation mode (change target operation mode; first is the first mode) for changing the air volume at this stage. The rotation speed of 117 is set so as to be reduced, and the result is stored in the storage unit 134 (S24). On the other hand, when there is an input to increase the air volume (S23: increase), the control unit 136 sets to increase the rotation speed of the fan motor 117 for the change target operation mode (first mode at this stage). , In the storage unit 134 (S25). It should be noted that such a setting for raising and lowering the rotation speed of the fan motor 117 is performed by successively and continuously pushing the switch of the combination which is simultaneously pressed, so that the set value of the rotation speed of the fan motor 117 is raised or lowered. It

  Subsequently, the control unit 136 receives an input for changing the change target operation mode (S26: YES) and increments the change target operation mode (S27). The input for changing the operation mode is, for example, pressing the air volume automatic switch 123 twice or three times. If NO in S26, the input is awaited. For example, if the change target operation mode is the first mode in the previous stage, the second mode becomes the change target operation mode after the increment.

  When there is no input in S23 or S26 (S23: no input, S26: NO), the control unit 136 subsequently determines whether reset has been input (S28). The reset input is, for example, long pressing or double pressing of the timer switch 124. When the reset is input (S28: YES), the control unit 136 returns the air volume corresponding to each operation mode set in the storage unit 134 to the standard setting (S30).

  In S28, when there is no reset input (S28: NO), the control unit 136 determines whether or not there is a setting end input (S29), and when the setting end is not input here, the control unit 136 The process returns to S23, and the subsequent processing is repeated until there is any input. On the other hand, when the setting end is input, the control unit 136 ends the automatic driving setting process by the user. The input of setting end is, for example, pressing the automatic air volume switch 123 twice.

  As described above, the air volume in the automatic mode can be freely set according to the preference of the user. Therefore, in the automatic mode, the air volume to be switched and the accompanying change in sound are within the user's preference and expectation, so that the user does not feel (or less) feel annoyed during automatic operation. It is possible to provide a comfortable space that suits the taste of the person.

(Modification 1)
In the case of the altitude setting described above, the range of the air volume that can be changed in the automatic mode can be set from a wider range than the range of the air volume selected in the manual mode, "weak", "medium", and "strong". May be. For example, when lowering the air volume for the first mode, an air volume lower than "weak" in the manual mode (called the minimum air volume) can be set. For example, in the case of an IH cooker, the air flow rate may be lowered until it stops (fan motor 117 stops). On the other hand, in the range hood used in the gas cooker, the lower limit of the air volume that can be set is limited. For example, the minimum air volume that can be exhausted in accordance with the gas cooker is stored in advance in the storage unit 134, and if the input air volume is lower than this, the stored minimum air volume is set. As a result, in the gas cooker, it is possible to perform appropriate exhaust according to the gas cooker.

  This is because in the case of an IH cooker, it is okay to stop the exhaust, but in the case of a gas cooker, it is not preferable to stop the exhaust or to make it extremely low in order to exhaust the combustion gas. Is.

  Further, when increasing the air volume for the third mode, when the "strong" air volume selectable in the manual mode is operated at the maximum rotation speed of the fan motor 117, the rotation speed cannot be further increased. However, in the manual mode, when the "strong" air volume is operated at a rotation speed lower than the maximum rotation speed of the fan motor 117, there is room to further increase the rotation speed. In such a case, the air volume for the third mode may be set up to the maximum rotation speed of the fan motor 117.

  On the contrary, even when there is a margin to increase the rotation speed, the maximum air volume may be limited. For example, the storage unit 134 stores a predetermined maximum air volume. Then, even when the user inputs a large air volume that exceeds a predetermined maximum air volume, the maximum air volume is limited. This has the function of suppressing an increase in noise. Since the user who sets the air volume rarely considers the noise with respect to the air volume, such limitation of the maximum air volume is effective from the viewpoint of noise suppression.

(Modification 2)
Further, in the case of altitude setting, the processing procedure described above is to change the air volume for each operation mode that is changed according to the threshold temperature, but instead of this, the air volume is “weak”, “medium”, “strong”. It is also possible to change the threshold temperature that is the trigger for switching while keeping the above three steps. The processing procedure may be the same as in the case of altitude setting, and the first threshold temperature and the second threshold temperature are changed instead of the air volume.

(Modification 3)
As a further altitude setting, for example, both the air volume and the threshold temperature for each operation mode may be changed. Alternatively, the fan motor 117 may be a motor capable of continuously changing the rotation speed so that the air volume can be set to gradually change for each operation mode.

  The rotation speed of the filter 118 is the same as that of the first to third modes in accordance with the setting of the air volume in both the simple setting described above and the altitude setting including the modified examples 1 to 3. For example, in the simple setting, when only the first mode and the second mode are used, the rotation speed of the filter 118 is also the rotation speed of the first mode and the second mode in accordance with them. The same applies when only the second mode and the third mode are used. Similarly, in the altitude setting, if the changed air volume is the first mode, the rotation speed of the filter 118 determined as the first mode is set. Similarly, in the case of the second mode and the third mode, the rotation speed of the filter 118 corresponding to each operation mode is set.

(Modification 4)
The number of rotations of the filter 118 may be set arbitrarily. The rotation speed of the filter 118 is further changed and set to the air volume and the threshold temperature of the exhaust fan 116. As a result, the change in the sound accompanying the rotation of the filter 118 is also within the range of the user's preference, so that the annoyance felt by the user during automatic driving can be reduced.

(Modification 5)
Furthermore, either the simple setting or the advanced setting, or both, may be prepared with settings that the user cannot change. For example, in the setting example described above, the air volume is changed by using the first threshold temperature and the second threshold temperature as a trigger, but further, the third threshold temperature is provided and the air volume is triggered by the third threshold temperature. Cannot be changed by the user. The third threshold temperature is higher than the second threshold temperature, for example, and corresponds to the case where the temperature above the cooking device 200 becomes higher than that during normal use. Then, when such a temperature is reached, the air volume is set to the maximum. As a result, even if the user unexpectedly increases the cooking temperature and generates a lot of oil smoke, the gas can be sufficiently exhausted.

  Note that a time limitation may be set regardless of the setting made by the user. For example, when the temperature exceeds a predetermined temperature (a predetermined cooking state), the time period during which the air volume corresponding to the predetermined temperature can be continued is limited. For this purpose, the predetermined temperature and the time limit (time limit) are stored in the storage unit 134. Then, the control unit 136 raises the air volume when the temperature detected by the temperature sensor 300 exceeds a predetermined temperature during the operation with an air volume other than the maximum air volume and the same air volume continues beyond the time limit. .. In other words, the measurement of time is started when the temperature exceeds the predetermined temperature, and the amount of air is increased when the cooking state in which the temperature exceeds the predetermined temperature is still maintained even if the measurement time exceeds the time limit.

  A case where the oil smoke cannot be exhausted when the air volume of the exhaust fan 116 remains small for a long time when the air volume of the exhaust fan 116 is set to a weak setting or when the air volume is set to a low level in the altitude setting. There is. In such a case, according to the fifth modification, when the small air volume continues for a certain period of time even after reaching the predetermined temperature, the air volume increases and the oil smoke can be reliably exhausted.

  Further, by providing such a time limit, the operation may be continued in a mode in which the air volume is as small as possible, and the air volume may be temporarily increased, for example, only when the oil smoke cannot be completely removed. .. For this purpose, for example, after the air volume is increased beyond the time limit, it may be returned to the original air volume after a certain period of time. As a result, it is possible to suppress the generation of noise due to the large air volume as much as possible.

(Modification 6)
Further, the air volume may be exceptionally automatically changed to a predetermined air volume regardless of the air volume setting changed by the user. This is exceptional, for example, when the user has set a weak air volume to be used in the automatic mode, or when the maximum air volume that the user can originally set is less than the maximum air volume that the range hood can deliver. This is to operate with a larger air volume. For this, the upper limit threshold temperature higher than the second threshold temperature and the air volume corresponding to the upper limit threshold temperature are stored in the storage unit 134 in advance. Here, the upper limit threshold temperature is a predetermined cooking state. Then, when the temperature detected by the temperature sensor 300 exceeds the upper limit threshold temperature, the control unit 136 controls the fan motor 117 of the exhaust fan 116 so that the air volume corresponds to the upper limit threshold temperature. Here, it is preferable that the air volume corresponding to the upper limit threshold temperature is, for example, “strong” used in the manual mode or the maximum air volume that can be set as the specifications of the exhaust fan 116 and the fan motor 117. The "strong" or maximum air volume as the air volume corresponding to such an upper limit threshold temperature is an air volume larger than the air volume set by the user.

  As a result, even if the user sets the air volume to be used in the automatic mode so that the air volume does not become "strong", if the temperature rises above the cooking device 200 unexpectedly by the user, it is caused by it. It is possible to properly exhaust the oily smoke and the like. As an example of such a situation, for example, in the case where the cooking device 200 is a three-burner stove, when two stoves are in use, the temperature rarely exceeds the upper limit threshold temperature, but all three stoves are used. If this happens, the temperature may be as high as the user does not think, so in such a case, it functions effectively.

(Modification 7)
When the air volume is exceptionally increased as in the modification example 6, the time when the air volume is exceptionally large may be limited. By setting the time limit, it is possible to reduce the influence of noise and wind generated by an exceptionally large amount of air. Therefore, it is possible to surely remove the oily smoke that is generated unintentionally, and thereby to minimize the annoyance felt by the user.

(Modification 8)
The method of pressing each switch (long pressing or intermittent pressing), the combination of simultaneous pressing, and the like described in the embodiments are merely examples, and the present invention is not limited to the contents described. The operation panel is also an example, and an operation panel provided with keys and switches necessary for setting the air volume may be provided.

  Further, not only the setting change by the input from the operation panel 120 but also the setting may be performed by using an external device. For example, the control unit 136 may be provided with a wireless communication function so that it can be set by an external device. As the wireless communication function, for example, WiFi or Bluetooth (registered trademark) is preferable. Then, as the external device, a personal computer, a tablet, a smartphone, or the like compatible with these wireless communication functions can be used. For setting using an external device, a program for arbitrarily setting the air volume and the threshold temperature is put in the external device, and the air volume and the threshold temperature are set from the program. In this case, the air volume can be changed in stages by the fan motor function, and there is no waste, and the threshold temperature can be changed in multiple steps according to the fan motor function, or the air volume can be changed steplessly. The threshold temperature may be set so that In such a case, it is preferable that the range of the air volume and the threshold temperature that can be set by the user be incorporated in the program introduced into the external device according to the model (product number) of the range hood. As a result, the user does not have to make useless settings that do not correspond to the range hood model.

  The air volume and the threshold temperature set by the external device are sent to the control unit 136 through the wireless communication function and stored in the storage unit 134. Note that wired communication may be used instead of wireless communication. As the external device, a dedicated device may be used instead of a general-purpose device such as a personal computer, a tablet, and a smartphone. As a dedicated device, for example, a remote control for operating a range hood may be used to allow various altitude settings. Further, for example, as another setting method for both the simple setting and the altitude setting, the range hood may be provided with a speaker and a microphone so that the setting can be performed by voice.

  Also in each of the modified examples described above, the user's annoyance during driving in the automatic mode can be reduced as in the first embodiment.

(Embodiment 2)
In the second embodiment, the user can arbitrarily change only the rotation speed of the filter 118 in the automatic mode. Note that the configuration of the range hood is the same as that of the first embodiment, so description thereof will be omitted.

  Since the filter 118 is rotated, the sound is inevitably loud and annoyed at high speed rotation, and conversely, at low speed, the performance of removing oil from the oil smoke is deteriorated.

  Therefore, the rotation speed of the filter 118 can be adjusted to the user's preference even in the automatic mode. In the second embodiment, the air volume for exhaust cannot be changed by the user without changing the set automatic mode. Therefore, the control of the air volume in the automatic mode is the same as the standard setting described in the first embodiment, for example.

  In the automatic mode, the rotation speed of the filter 118 changes from the first mode to the third mode in conjunction with the air volume of exhaust gas as a standard setting. In the second embodiment, the user can set the number of rotations of the filter 118 in each of the first mode to the third mode. The specific setting method is the same as the case of setting the air volume of the exhaust fan 116 described above. For example, as a simple setting, the rotation speed is weaker, and the rotation speed is “weak” in the first mode to the second mode. The mode is set to "medium" in the 3 modes, or the rotation speed is biased, and the rotation speed is "medium" in the first mode to the second mode, and "strong" in the third mode, or the rotation speed is "in the first mode to the second mode". "Weak", "strong" in the third mode, and so on. Alternatively, the altitude may be set so that the rotation speed can be adjusted at will.

  According to the second embodiment, since the number of rotations of the filter 118 can be set according to the preference of the user, it is possible to reduce the troublesomeness felt by the user, which is caused by the rotation of the filter 118 that is a rotating object. You can

  When the rotation speed of the rotary filter 118 can be arbitrarily changed by the user in this way, the air volume by the exhaust fan 116 may be arbitrarily changed by the user as in the first embodiment.

(Embodiment 3)
In the third embodiment, the air volume in the automatic mode is set so as to exclude the air volume that the user feels troublesome in advance and perform the automatic operation. Note that the configuration of the range hood is the same as that of the first embodiment, so description thereof will be omitted.

  The air volume range used in the conventional automatic mode has been set to use the entire air volume range used in the manual mode. In other words, if the air volume range used in manual mode is "weak," "medium," and "strong," the air volume range used in automatic mode will also switch to "weak," "medium," and "strong." Was becoming.

  In the third embodiment, if the range of the air volume used in the manual mode is “weak”, “medium”, and “strong”, only the two levels of “weak” and “medium” are preset as the air volume used in the automatic mode. I will keep it. In this case, as the threshold temperature for switching the air volume, only the threshold temperature corresponding to the above-mentioned first threshold temperature may be set (stored in the storage unit 134). Then, the control unit 136 compares the set threshold temperature with the temperature detected by the temperature sensor 300, and switches from the first mode (“weak”) to the second mode (“medium”). Of course, when the detected temperature drops, the reverse switching is performed.

  As a result, the air volume does not switch to "strong" automatically, so that the air volume does not suddenly become strong or the sound does not become loud. Therefore, even if such a change to "strong" air volume is eliminated, it is possible to reduce the annoyance felt by the user during the automatic driving.

  In this case, when the filter 118 is also controlled, the rotation of the filter 118 is also controlled in accordance with the first mode and the second mode as in the first embodiment.

  On the contrary, if the air volume used in the manual mode is "weak", "medium", and "strong", the air volume used in the automatic mode may have only two levels, "medium" and "strong" beforehand. Good. In this case, as the threshold temperature for switching the air volume, only the threshold temperature corresponding to the above-mentioned second threshold temperature may be set (stored in the storage unit 134). Then, the control unit 136 compares the set threshold temperature with the temperature detected by the temperature sensor 300, and switches from the second mode (“medium”) to the third mode (“strong”). Of course, when the detected temperature drops, the reverse switching is performed. This will automatically prevent "weak" from being used. This is because some users do not feel as if they are being exhausted because the sound is low when the air volume is "weak", and it is difficult for users to understand whether the exhaust is being performed in the automatic mode. Therefore, the annoyance that such a user feels can be reduced.

  According to the third embodiment, the air volume in the automatic mode is changed by using only a part of the air volume range that can be switched in the manual mode. As a result, during manual operation, the user intentionally switches between “strong” and “weak”, so that even if the maximum or minimum of the selectable air volume range is used, there is no annoyance. On the other hand, in the automatic mode, the maximum (“strong”) or the minimum (“weak”) is not used. For this reason, a large change in the air flow rate and a change in sound accompanying it during the automatic driving are reduced, and the user is less likely to feel annoyed about the automatic driving.

(Embodiment 4)
In the fourth embodiment, also for the rotating filter 118, similarly to the third embodiment, the number of rotations of the filter 118 in the automatic mode is set in advance so as to exclude the number of rotations that the user feels troublesome and to perform the automatic operation. Note that the configuration of the range hood is the same as that of the first embodiment, so description thereof will be omitted. Further, the exhaust fan 116 may be controlled separately from the filter 118 as in the first and third embodiments. Since all of them have already been described, the description is omitted.

  The number of rotations of the conventional filter 118 (hereinafter, simply referred to as the number of rotations) is also switched in the manual mode when the air volume is switched. Therefore, the range of the rotation speed of the filter 118 used in the automatic mode is set to use the entire range of the rotation speed switched in the manual mode. In other words, if the range of revolutions used in manual mode is "weak", "medium", and "strong", the range of revolutions used in automatic mode is also switched to "weak", "medium", and "strong". It was supposed to be replaced.

  In the fourth embodiment, if the range of the rotational speeds used in the manual mode is “weak”, “medium”, and “strong”, the rotational speeds used in the automatic mode are 2 in advance, “weak” and “medium”. Only the stage is set. In this case, as the threshold temperature for switching the rotation speed, only the threshold temperature corresponding to the first threshold temperature for switching the air volume described above may be set (stored in the storage unit 134). Then, the control unit 136 compares the set threshold temperature with the temperature detected by the temperature sensor 300, and switches from the first mode (“weak”) to the second mode (“medium”). Of course, when the detected temperature drops, the reverse switching is performed.

  As a result, the speed does not automatically switch to "strong", so that the rotation speed suddenly increases and the sound does not become loud. Therefore, even if there is no such change in the "strong" rotation speed, the annoyance felt by the user during the automatic driving can be reduced.

  On the contrary, if the number of rotations used in the manual mode is "weak", "medium", and "strong", the number of rotations used in the automatic mode should be only two levels beforehand, "medium" and "strong". You may stay. In this case, as the threshold temperature for switching the rotation speed, only the threshold temperature corresponding to the second threshold temperature described above may be set (stored in the storage unit 134). Then, the control unit 136 compares the set threshold temperature with the temperature detected by the temperature sensor 300, and switches from the second mode (“medium”) to the third mode (“strong”). Of course, when the detected temperature drops, the reverse switching is performed. This will automatically prevent "weak" from being used. This is because some users do not like the effect of removing oil from the oil smoke being low at “weak” rotation speeds, so that the annoyance felt by such users can be reduced. ..

  According to the fourth embodiment, the rotation speed in the automatic mode is changed by using only a part of the rotation speed range that can be switched in the manual mode. As a result, during manual operation, the user intentionally switches between "strong" and "weak", so there is no annoyance even if the maximum or minimum of the selectable rotation speed range is used. On the other hand, in the third embodiment, the maximum (“strong”) and the minimum (“weak”) in the range of selectable rotation speeds are not used in the automatic mode. For this reason, a large change in the number of revolutions and a change in sound accompanying it during the automatic driving are reduced, and the user is less likely to feel annoyance about the automatic driving.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and modifications.

  For example, although the range of air volume has been described as three levels of “weak”, “medium”, and “strong”, it is also applicable to a range hood that can use four levels, five levels, and more than one level. It is also applicable to range hoods in which the air volume changes continuously as well as those that change dynamically. Also, the range of the number of rotations of the filter 118 is described as three levels of “weak”, “medium”, and “strong”, but it is also applicable to a range hood that can use four steps, five steps, or a plurality of steps. The present invention is also applicable to a range hood in which the number of revolutions changes continuously as well as those that change in stages.

  Further, although the example in which the rotating filter 118 (disk) is provided has been described, the filter may be a non-rotating filter or may be applied to a range hood without the filter itself. In these cases, the rotation control of the filter is not performed.

  Further, in the above-described embodiments and modified examples, the temperature sensor provided in the range hood is used as the cooking state monitoring unit, but the cooking state monitoring unit also uses, for example, the temperature sensor installed in the cooker itself. It may be done. In addition to the temperature sensor, the cooking state monitoring unit includes, for example, a color sensor that detects the color of an object placed on the cooking device, a sound sensor that detects the sound emitted by the object placed on the cooking device, and the cooking device. Sensor for detecting particles in the space between the cooker and the range hood, smoke sensor for detecting smoke in the space between the cooker and the range hood, cooking menu information selected by the cooker, and the operating state of the cooker The cooking state may be monitored on the basis of the cooker operating state sensor for detecting the above, and further information based on any combination thereof.

  Further, it is needless to say that the present invention can be implemented in various forms based on the technical idea described in the claims, and these are also within the scope of the present invention.

100 range hoods,
110 exhaust,
112 air intake,
114 exhaust port,
116 exhaust fan,
117 fan motor,
118 filters,
119 filter motor,
120 operation panel,
121 Run switch,
122 Air volume switch,
123 Automatic air flow switch,
124 timer switch,
125 light switch,
126 constant ventilation switch,
130 control device,
132 gas / IH selection switch,
134 storage,
136 control unit,
200 cookers,
210 heat source,
220 grill outlet,
300 temperature sensor.

Claims (11)

A cooking condition monitoring unit that monitors the cooking condition in the cooking device,
An exhaust fan whose air volume can be changed,
In order to change the air volume, a storage unit that stores a cooking state and the air volume according to the cooking state,
A control unit that compares the cooking state monitored by the cooking state monitoring unit with the cooking state stored in the storage unit, and changes the air volume according to the cooking state.
Have
The said control part is a range hood which receives the input for setting the said air volume according to a cooking state, and memorize | stores the said air volume according to a cooking state in the said memory | storage part.   The range hood according to claim 1, wherein the control unit receives an input of the air volume selected from a plurality of the air volumes prepared in advance, and stores the air volume in the storage unit as the air volume according to a cooking state. ..   The range hood according to claim 1 or 2, wherein the control unit causes the storage unit to store a predetermined maximum airflow when the input airflow exceeds a predetermined maximum airflow.   The control unit causes the storage unit to store a predetermined minimum airflow when the input airflow is less than a predetermined minimum airflow. Range food. The storage unit stores a predetermined cooking state and a time limit that is a time that can be continued as the air volume according to the predetermined cooking state,
The control unit, when operating at the air volume other than the maximum air volume, the cooking state monitored by the cooking state monitoring unit is the predetermined cooking state, and when the same air volume continues beyond the time limit. The range hood according to any one of claims 1 to 4, wherein the air volume is increased. Furthermore, with a rotating filter,
The storage unit stores a rotation speed of the filter corresponding to the air volume of the exhaust fan,
The range hood according to any one of claims 1 to 5, wherein the control unit rotates the filter at the rotation speed corresponding to the air volume of the exhaust fan stored in the storage unit.   7. The control unit receives an input for setting the rotation speed of the filter corresponding to the air volume of the exhaust fan, and stores the rotation speed of the filter corresponding to the air volume in the storage unit. Range hood described in. The storage unit stores a predetermined cooking state that requires a larger air volume than the air volume stored by receiving the input, and the large air volume,
When the cooking state monitored by the cooking state monitoring unit becomes the predetermined cooking state stored in the storage unit, the control unit is configured to operate in accordance with the predetermined cooking state stored in the storage unit. The range hood according to any one of claims 1 to 7, wherein the range hood is changed to a large air volume. A cooking condition monitoring unit that monitors the cooking condition in the cooking device,
An exhaust fan whose air volume can be changed,
The exhaust fan is provided on the upstream side of the air flow created for exhaust, and a rotating filter whose rotation speed is changeable,
In order to change the air volume and the rotation speed, a storage unit that stores a cooking state and the air volume and the rotation speed according to the cooking state,
A control unit that compares the cooking state monitored by the cooking state monitoring unit with the cooking state stored in the storage unit, and changes the air volume and the rotation speed according to the cooking state,
Have
The said control part is a range hood which receives the input for setting the said rotation speed according to a cooking state, and memorize | stores the said rotation speed according to a cooking state in the said memory | storage part. A cooking condition monitoring unit that monitors the cooking condition in the cooking device,
An exhaust fan whose air volume can be changed,
In order to change the air volume, a storage unit that stores a cooking state and the air volume according to the cooking state,
As an automatic mode, a cooking state monitored by the cooking state monitoring unit and a cooking state stored in the storage unit are compared, and a control unit that changes the air volume according to the cooking state,
The said storage part is the range hood which has memorize | stored a part of range of the air volume selected from the range of the said air volume used as a manual mode as the said air volume used for the said automatic mode. A cooking condition monitoring unit that monitors the cooking condition in the cooking device,
An exhaust fan whose air volume can be changed,
The exhaust fan is provided on the upstream side of the air flow created for exhaust, and a rotating filter whose rotation speed is changeable,
In order to change the rotation speed, a storage unit that stores the cooking state and the rotation number according to the cooking state,
As an automatic mode, a control unit that compares the cooking state monitored by the cooking state monitoring unit and the cooking state stored in the storage unit and changes the rotation speed according to the cooking state,
Have
The said storage part is the range hood which has memorize | stored a part of range of the rotation speed selected from the range of the said rotation speed used as a manual mode as the said rotation speed used for the said automatic mode.