JP2022011780A - Range hood - Google Patents

Abstract

To give a sense of unity to the light environment of a kitchen.SOLUTION: A range hood 100 comprises: a hood part 120 that is arranged above a heating cooker 200 and has an opening part 110 for suctioning oil smoke generated by cooking; a blower 130 that generates suction force to suction oil smoke from the opening part 110; an illumination part 150 that is provided on the opening part 110 side of the hood part 120, and has an irradiation angle range on the heating cooker 200 side with respect to the hood part 110; and a light emission control part 180 that controls the light emission of the illumination part 150. The range hood further comprises a first sensor 160 that detects ambient light information of the range hood 100. The first sensor 160 sets a detection area only outside the irradiation angle range of the illumination part 150, and the light emission control part 180 performs light emission control based on the ambient light information detected by the first sensor 160.SELECTED DRAWING: Figure 1

Description

The present invention relates to a range hood provided with lighting that is toned according to the ambient lighting color.

Currently, various types of optimal lighting colors are installed in home spaces such as bedrooms, living rooms, and kitchens of houses, depending on the environment of the space and the preference of the user.

However, in general, since a window is provided in the home space, sunlight or outside light of external lighting enters through the window, and the light environment of the home space changes greatly depending on the season and time.

Therefore, when trying to maintain the light environment of the home space to the user's favorite light environment, it is necessary to diligently adjust the illuminance and the lighting color of the lighting.

As an invention capable of automatically performing this adjustment, there is an invention as disclosed in Patent Document 1. In the present invention, the light environment such as the illuminance and the lighting color of the lighting is measured, and the light environment of the home space can be automatically adjusted to the user's favorite light environment.

On the other hand, since a range hood is installed in the kitchen in the home space, in the case of the kitchen, at least the ceiling-hung lighting and the range hood lighting (RH lighting) that illuminates the cooking cooker installed under the range hood 2 There are two lights.

In the case of island kitchens, which have been widely adopted in recent years, in addition to ceiling-hung lighting and RH lighting, there are living lighting arranged in the living room and indirect lighting arranged on the floor.

The kitchen space occupies a large area in the house, and people stay for a long time. Therefore, in order to coordinate the lighting in the house, it is necessary to design the lighting including all the lighting of the ceiling hanging lighting, the living lighting, the kitchen lighting including the indirect lighting, and the RH lighting.

In the invention disclosed in Patent Document 2, the RH lighting is turned on and off in conjunction with the heating cooker operated by the user, and the illuminance of the RH lighting is set to a constant illuminance based on the detection result of the illuminance sensor. The illuminance of the RH lighting is changed.

However, even in the invention disclosed in Patent Document 2, the coordination of the range hood lighting is performed by looking at the entire home lighting, and the lighting colors of the two lightings, the ceiling hanging lighting and the RH lighting, are taken into consideration. The lighting environment of the kitchen is not unified.

Japanese Unexamined Patent Publication No. 2013-014718 Japanese Patent No. 5151016

Generally, in a range hood used in a cooking environment, the detection result of the illuminance sensor is often affected by external noise such as oil smoke, cooking flame, and user's shadow.

In particular, when the illuminance sensor is installed on the top plate of the heating cooker as in the invention disclosed in Patent Document 2, the detection result of the illuminance sensor is greatly affected by external noise. Illuminance cannot be detected accurately.

Therefore, in order to give a sense of unity to the light environment in the house including the kitchen, not only the inventions of Patent Document 1 and Patent Document 2 are applied, but also a range hood in which a special device is added to RH lighting is used. Need to be installed.

Therefore, in order to give a sense of unity to the lighting environment in the house including the kitchen, even in an environment that is easily affected by external noise such as in a cooking environment, it does not receive external noise and depends on the surrounding lighting color. The purpose is to provide a range hood equipped with lighting to match the color.

The range hood of the present invention that achieves the above object is a hood portion that is arranged above a cooking device and has an opening for sucking oil smoke generated by cooking, and a blower that generates suction force for sucking oil smoke from the opening. In a range hood provided with a lighting unit provided on the opening side of the hood unit and having an irradiation angle range on the cooking cooker side of the hood unit, and a light emission control unit for controlling light emission of the lighting unit, the range hood Further, a first sensor for detecting ambient light information is further provided, the first sensor sets the detection area only outside the irradiation angle range of the illumination unit, and the light emission control unit emits light based on the ambient light information detected by the first sensor. Take control.

According to the range hood of the present invention, the information of the ambient light of the range hood is detected by the first sensor whose detection area is only outside the irradiation angle range of the illumination unit, and based on the information of the ambient light detected by the first sensor. Since the light emission is controlled, it is possible to harmonize the lighting color of the lighting unit with the surrounding lighting color without receiving external noise even in an environment that is easily affected by external noise such as in a cooking environment. Become.

It is a front view when the range hood of Embodiment 1 is installed in the kitchen. It is a right side sectional view when the range hood of Embodiment 1 is installed in a kitchen. It is a figure which shows the lighting part of the range hood of Embodiment 1. FIG. It is a figure which shows the sensor mounting part of the range hood of Embodiment 1. FIG. It is a detailed view of the sensor mounting part of FIG. It is a figure which shows the lighting part of the form different from the lighting part of FIG. It is a figure which shows the lighting part of the form different from the lighting part of FIGS. 3 and 6. It is a figure which shows the sensor mounting part at a position different from FIG. It is a figure which shows the sensor mounting part at a position different from FIG. 4 and FIG. It is a block diagram of the control system of the range hood of Embodiment 1. FIG. It is an operation flowchart of the light emission control unit of FIG. It is a figure which shows the structure of the illumination part of the range hood of Embodiment 2 and the attachment position of the 2nd sensor. It is a figure which shows the lighting part of the structure different from FIG. 12, and the mounting position of the 2nd sensor. It is a block diagram of the control system of the range hood of Embodiment 2. It is an operation flowchart of the light emission control unit of FIG. It is an operation flowchart of a form different from FIG.

Hereinafter, embodiments of the range hood of the present invention will be described in detail by dividing them into Embodiment 1 and Embodiment 2 with reference to the drawings. The range hood of the present invention is not limited to the configurations described in the following embodiments 1 and 2. In addition, each drawing is exaggerated for convenience of explanation. Therefore, the dimensional ratio of each component in each drawing may differ from the actual one. Further, the same elements are designated by the same reference numerals in the drawings, and duplicate description will be omitted in the specification.

[Embodiment 1]
(Composition of range hood)
FIG. 1 is a front view when the range hood of the first embodiment is installed in the kitchen. FIG. 2 is a cross-sectional view on the right side when the range hood of the first embodiment is installed in the kitchen.

As shown in FIGS. 1 and 2, the range hood 100 of the present embodiment is installed on the upper part of the cooking device 200. The range hood 100 sucks in odors, smoke, odors including oil and oil smoke generated during cooking of the cooking device 200, and exhausts them to the outside. The illustrated cooker 200 has two heat sources 210. In the present specification, the heat source 210 means a burner or a trivet near the burner for the cooking cooker 200 for gas, and a heater for the cooking cooker 200 for IH.

The range hood 100 has a hood unit 120 that sucks in oil smoke generated by cooking of the cooking device 200. An opening 110 is formed on the lower surface side of the hood portion 120. The opening 110 sucks in oily smoke containing odor, smoke, oil and the like generated during cooking of the cooking device 200. A blower box 115 is provided on the upper surface side of the central portion of the hood portion 120. A blower 130 is arranged in the blower box 115. The blower 130 generates a suction force for sucking oil smoke from the opening 110, and exhausts the sucked oil smoke to the outside. The front side of the hood portion 120 is provided with a switch portion 125 necessary for operating the range hood 100. The switch unit 125 is provided with a lighting switch (not shown) for lighting the lighting unit 150. By pressing the lighting switch for a predetermined time, the automatic toning mode is entered.

A filter 140 for removing oil from the oil smoke sucked from the opening 110 is provided between the opening 110 and the blower 130. When the blower 130 is rotating, the filter 140 is also rotating. The range hood 100 may or may not be provided with a fixed filter that does not rotate.

The range hood 100 has a lighting unit 150 that illuminates the upper surface of the cooking device 200. The illumination unit 150 is an LED illumination whose illuminance and illumination color can be changed. The lighting unit 150 is provided at the center of the opening 110 side of the hood unit 120 and the front surface side of the hood unit 120. The lighting unit 150 has an irradiation angle range on the cooking device 200 side as shown by a dotted line extending downward from the lighting unit 150 (see FIGS. 1 and 2). The irradiation angle range in the present specification is an angle range in which the light beam of the irradiation light is spread, and means an angle range in which the illuminance does not drop to a certain amount and does not include the diffusely reflected return light. Therefore, the irradiation angle range does not mean, for example, an angle range limited to a range of 45 degrees around from a downward perpendicular line.

On the top surface side of the range hood 100, a first sensor 160 for detecting information on the ambient light of the range hood 100 is provided. The first sensor 160 is provided on the upper surface side of the hood portion 120 and on the left side of the front surface side of the hood portion 120. The ambient light information of the range hood 100 is information as light characteristics such as the illumination color, wavelength, illuminance, and color temperature of the ceiling-hung lighting of the kitchen in which the range hood 100 is installed. The first sensor 160 has a detection region only outside the irradiation angle range of the illumination unit 150, as shown by a dotted line extending upward from the first sensor 160 (see FIGS. 1 and 2). The first sensor 160 is a color sensor, and detects the illumination color of the lighting suspended from the ceiling of the kitchen as an RGB value.

As described above, the detection area of the first sensor 160 is set outside the irradiation angle range of the illumination unit 150. When the detection area of the first sensor 160 is included in the irradiation angle range of the lighting unit 150, the first sensor 160 obtains information on ambient light not only for the lighting color of the ceiling-hung lighting of the kitchen but also for the lighting color of the lighting unit 150. This is because it is detected as.

The illumination color of the illumination unit 150 is controlled by a light emission control unit (not shown) based on the ambient light information detected by the first sensor. The light emission control unit is provided in the range hood 100.

FIG. 3 is a diagram showing an illumination unit of the range hood of the first embodiment. The lighting unit 150 is arranged at the center of the opening 110 side of the hood unit 120 and the front side of the hood unit 120 so as to extend from the center of the hood unit 120 to the left and right by a certain length on the front side of the hood unit 120. To. Therefore, the lighting unit 150 irradiates the region including the upper surface of the cooking device 200 (see FIGS. 1 and 2) with irradiation light.

FIG. 4 is a diagram showing a sensor mounting portion of the range hood of the first embodiment. FIG. 5 is a detailed view of the sensor mounting portion of FIG.

As shown in FIG. 4, the sensor mounting portion 170 is provided at a position offset to the left end from the central portion on the front surface side of the hood portion 120 of the range hood 100. Therefore, the first sensor 160 is arranged at the left end on the front side of the hood portion 120 of the range hood 100. As a result, the first sensor 160 can detect the illumination color above the hood portion 120 (the tint of the illumination suspended from the ceiling of the kitchen) as the ambient light information of the range hood 100. The first sensor 160 is built in the hood portion 120 as shown in FIG.

The first sensor 160 is composed of a sensor substrate 162, a sensor cover 164, and a sensor box 166. A detection unit 163, which is a main part of the first sensor 160, is formed on the upper surface of the sensor substrate 162. A transparent window portion 165 is provided on the upper surface of the sensor cover 164.

As shown in the figure, the sensor substrate 162 is housed in the sensor cover 164 so that the detection unit 163 is located in the window portion 165 of the sensor cover 164. The sensor cover 164 in which the sensor board 162 is housed is attached to the sensor box 166. The sensor box 166 to which the sensor cover 164 is attached is mounted in the hood portion 120 so that the window portion 165 of the sensor cover 164 faces the opening 168 of the hood portion 120. As a result, the first sensor 160 can detect the illumination color above the hood portion 120 via the opening portion 168 and the window portion 165.

If the sensor mounting portion 170 is provided at a position as shown in FIG. 4, it is less likely to be affected by external noise due to oil smoke generated during cooking, cooking flames, shadows of the user, etc., and the illumination color above the hood portion 120 is accurate. Will be able to detect. Further, since the sensor mounting portion 170 is hidden above the hood portion 120, the design of the range hood 100 is improved.

FIG. 6 is a diagram showing a lighting unit having a different form from that of the lighting unit of FIG. FIG. 7 is a diagram showing a lighting unit having a different form from that of the lighting units of FIGS. 3 and 6.

In FIG. 6, the lighting unit 150 is provided on the side surface of the blower box 115, and in FIG. 7, the lighting unit 150 is provided on the upper part of the hood unit 120. The illumination unit 150 shown in FIGS. 6 and 7 is different from the illumination unit 150 of FIG. 3 in that the slit light 152 as shown in the figure is irradiated to provide indirect illumination.

As shown in FIG. 6, when the lighting unit 150 is provided on the side surface of the blower box 115 and the slit light 152 is irradiated from the lighting unit 150 toward the ceiling, the lighting unit 150 can be used as cove lighting. Cove lighting is to illuminate the reflected light by shining the light directly on the ceiling. Cove lighting is generally used in hotel lobbies and bedrooms, and can give a sense of luxury to the light environment.

Therefore, when the range hood adopting the lighting unit 150 of FIG. 6 is installed in the island kitchen, it is possible to give a sense of luxury to the light environment of the kitchen.

As shown in FIG. 7, when the illumination unit 150 is provided on the upper portion of the hood unit 120 and the slit light 152 is irradiated from the illumination unit 150 toward the wall surface, the illumination unit 150 can be used as cornice illumination. Cornice lighting illuminates a wall surface by shining light directly on the wall surface, and the reflected light is used as lighting. Therefore, it is possible to create a beautiful shade of light by the uneven pattern on the wall. Cornice lighting has the effect of making the space feel wider by brightening the walls.

Therefore, when the range hood using the lighting unit 150 of FIG. 7 is installed in the island kitchen, the kitchen space can be made to feel wider.

FIG. 8 is a diagram showing a sensor mounting portion at a position different from that of FIG. FIG. 9 is a diagram showing a sensor mounting portion at a position different from that of FIGS. 4 and 8. In FIG. 8, the sensor mounting portion 170 is provided above the hood portion 120, and in FIG. 8, the sensor mounting portion 170 is provided on the outer peripheral side surface portion (duct cover) of the hood portion 120. The configuration of the first sensor 160 arranged in the sensor mounting portion 170 is the same as that shown in FIG.

As shown in FIG. 8, when the sensor mounting portion 170 is provided above the hood portion 120, for example, on the side surface of the blower box 115, oily smoke and cooking flames generated during cooking are blocked by the hood portion 120 and the shadow of the user. It is also less susceptible to external noise caused by such factors. Therefore, the first sensor 160 can accurately detect the illumination color above the hood portion 120. Further, the first sensor 160 is less likely to be contaminated by oil smoke.

The position above the hood portion 120 is not limited to the position shown in FIG. 8, and includes various positions such as the curtain plate of the range hood 100 and the blower main body box.

As shown in FIG. 9, if the sensor mounting portion 170 is provided on the outer peripheral side surface portion of the hood portion 120, for example, on the side of the switch portion 125, not only the position as shown in FIG. 9 but also the inside of the switch portion 125. The first sensor 160 can be incorporated in the first sensor 160, and the first sensor 160 can be arranged in a good-looking manner.

(Operation of range hood)
FIG. 10 is a block diagram of the control system of the range hood of the first embodiment. Further, FIG. 11 is an operation flowchart of the light emission control unit of FIG.

As shown in FIG. 10, a first sensor 160 and an illumination unit 150 are connected to the light emission control unit 180. The configuration of the first sensor 160 and the illumination unit 150 is as described above. The light emission control unit 180 is built in the hood unit 120, and performs light emission control for adjusting the irradiation light of the illumination unit 150 based on the information of the ambient light detected by the first sensor 160.

The operation flowchart of FIG. 11 is processed by pushing down the lighting switch provided in the switch unit 125 (see FIG. 1) for a predetermined time, and shifts to the automatic toning mode. When the mode shifts to the automatic color matching mode, the light emission control unit 180 detects the color appearance of the ambient light and controls the light emission of the LED of the illumination unit 150 as follows.

As shown in FIG. 11, the light emission control unit 180 first detects ambient light information by the first sensor 160 (S100). The ambient light information is, for example, information as a characteristic of light such as the illumination color, wavelength, illuminance, and color temperature of the lighting suspended from the ceiling of the kitchen. Since the first sensor 160 is a color sensor, the illumination color is detected as an RGB value.

Next, the light emission control unit 180 controls the light emission of the illumination unit 150 based on the information of the ambient light detected by the first sensor 160. That is, the light emission control unit 180 changes the color of the irradiation light emitted by the illumination unit 150 so as to approach the RGB value detected by the first sensor 160 (S110).

In order to perform such light emission control, the light emission control unit 180 has a look-up table in which the information of the ambient light detected by the first sensor 160 and the color of the irradiation light emitted by the illumination unit 150 are associated with each other. .. The light emission control unit 180 refers to this look-up table so that the illumination color of the irradiation light emitted by the illumination unit 150 approaches the illumination color of the illumination suspended from the ceiling of the kitchen.

By performing such light emission control by the light emission control unit 180, it is possible to give a sense of unity to the light environment of the kitchen.

[Embodiment 2]
(Composition of range hood)
The configuration of the range hood 100 of the second embodiment is substantially the same as the configuration of the range hood 100 shown in FIGS. 1 to 9 of the first embodiment. However, as compared with the range hood 100 of the first embodiment, the range hood 100 of the second embodiment is provided with the second sensor 190 in the vicinity of the illumination unit 150, and the light emission control of the light emission control unit 180 is the second. It is different from what is done based on the detection values of the 1st sensor 160 and the 2nd sensor 190.

FIG. 12 is a diagram showing the structure of the lighting unit of the range hood of the second embodiment and the mounting position of the second sensor. As shown in the figure, the illumination unit 150 is configured by arranging a plurality of LEDs 155 on a line at regular intervals. The second sensor 190 is mounted on the glass substrate 158 at a position facing the irradiation direction of the illumination unit 150.

In this way, when the second sensor 190 is provided so as to face the illumination unit 150, the second sensor 190 can directly detect the information of the irradiation light emitted from the illumination unit 150. Due to the characteristics of the LED 155, the light color and brightness may vary. Therefore, if the illumination color of the illumination unit 150 is directly detected by the second sensor 190, the illumination color of the illumination unit 150 is controlled by using only the first sensor 160 as in the first embodiment. Therefore, it is possible to easily cope with variations in the light color and brightness of the LED 155. Therefore, it becomes easy to bring the lighting color of the lighting unit 150 closer to the lighting color of the lighting suspended from the ceiling of the kitchen, and it is possible to give a sense of unity to the color of the light emitted to the space of the kitchen.

The second sensor 190 does not necessarily have to be provided at the position shown in FIG. It may be provided at a position where the information of the irradiation light emitted from the LED 155 can be detected, that is, in the vicinity of the illumination unit 150 as shown in FIG. The vicinity of the illumination unit 150 means a place within the irradiation angle range of the illumination unit 150 and where the illumination color of the light emitted by the illumination unit 150 can be detected with an accuracy within a certain level. For example, it is a predetermined position of the illumination unit 150, a position where the irradiation light emitted from the illumination unit 150 can be directly detected, and a position where the irradiation space of the illumination unit 150 can be directly detected. Further, it also includes a position where the irradiation light emitted from the illumination unit 150 can be indirectly detected through the space. The lighting unit 150 may be either direct lighting or indirect lighting. It is preferable that the second sensor 190 uses the same color sensor as the first sensor 160.

FIG. 13 is a diagram showing a lighting unit having a structure different from that of FIG. 12 and a mounting position of the second sensor. As shown in the figure, the illumination unit 150 is configured by arranging a plurality of LEDs 155 on a line at regular intervals. However, in this aspect, unlike FIG. 12, the second sensor 190 is provided at a position sandwiched between the two LEDs 155.

In this way, when the second sensor 190 is provided at a position sandwiched between the two LEDs 155, the information of the irradiation light emitted from the illumination unit 150 can be detected not directly as shown in FIG. 12 but through a space. become.

The second sensor 190 is preferably hidden so that it cannot be seen by the user, but in the case of FIG. 12, it is preferable to perform a process of hiding the second sensor 190 on the glass substrate 158. Further, in the case of FIG. 13, a resin cover or a reflection process may be applied to the portion of the glass substrate 158 facing the second sensor 190 to hide the second sensor 190.

(Operation of range hood)
FIG. 14 is a block diagram of the control system of the range hood of the second embodiment. Further, FIG. 15 is an operation flowchart of the light emission control unit of FIG.

As shown in FIG. 14, a first sensor 160, a second sensor 190, and an illumination unit 150 are connected to the light emission control unit 180. The configuration of the first sensor 160, the second sensor 190, and the lighting unit 150 is as described above. The light emission control unit 180 is built in the hood unit 120, and is the irradiation light detected by the second sensor 190 based on the ambient light information detected by the first sensor 160 and the irradiation light information detected by the second sensor 190. The light emission control of the illumination unit 150 is performed so that the information approaches the information of the ambient light detected by the first sensor 160.

Specifically, the light emission control unit 180 approaches the RGB values detected by the first sensor 160 based on the RGB values detected by the first sensor 160 and the second sensor 190. As described above, the illumination color of the illumination unit 150 is controlled.

As shown in FIG. 15, the light emission control unit 180 first detects ambient light information by the first sensor 160 (S200). The ambient light information is, for example, the illumination color of the ceiling-hung lighting in the kitchen. Since the first sensor 160 is a color sensor, the illumination color is detected as an RGB value (for example, R: 251, G: 249, B: 241).

Next, the light emission control unit 180 detects the information of the illumination light of the illumination unit 150 by the second sensor 190 (S210). The illumination light information is the illumination color of the light emitted from the LED 155 constituting the illumination unit 150. Since the second sensor 190 is a color sensor, the illumination color of the illumination unit 150 is detected as RGB values (for example, R: 207, G: 224, B: 226).

Next, in the light emission control unit 180, the RGB value detected by the second sensor 190 is the RGB value detected by the second sensor 190 based on the RGB value of the illumination color detected by the first sensor 160 and the RGB value of the illumination light detected by the second sensor 190. 1 The light emission of the illumination unit 150 is controlled so as to approach the RGB value detected by the sensor 160. That is, the light emission control unit 180 irradiates the illumination light so that the RGB value detected by the first sensor 160 and the RGB value detected by the second sensor 190 have the same RGB value illumination color. (S220).

The operation flowchart of FIG. 15 is processed by pushing down the lighting switch provided in the switch unit 125 (see FIG. 1) for a predetermined time, and shifts to the automatic toning mode. When the mode shifts to the automatic color matching mode, the light emission control unit 180 detects ambient light and illumination light information and controls the LED light emission of the illumination unit 150 as follows.

As shown in FIG. 15, the light emission control unit 180 first detects ambient light information by the first sensor 160 (S200). The ambient light information is, for example, information as a characteristic of light such as the illumination color, wavelength, illuminance, and color temperature of the lighting suspended from the ceiling of the kitchen. Since the first sensor 160 is a color sensor, the illumination color is detected as an RGB value.

Next, the light emission control unit 180 detects the information of the illumination light of the illumination unit 150 by the second sensor 190 (S210). The illumination light information is information as light characteristics such as the illumination color, wavelength, illuminance, and color temperature of the light emitted from the LED 155 constituting the illumination unit 150. Since the second sensor 190 is a color sensor, the illumination color of the illumination unit 150 is detected as an RGB value.

Next, the light emission control unit 180 calculates the ratio α1 = G / B of the two color values among the RGB values detected by the first sensor 160, and among the RGB values detected by the second sensor 190. By calculating the ratio α2 = G / B of the two color values and comparing the calculated two ratios α1 and α2, the illumination unit 150 is illuminated so as to approach the RGB values detected by the first sensor 160. The color is controlled (S220).

Specifically, it is assumed that the GB value detected by the first sensor 160 is (256,256) (white system) and the GB value detected by the second sensor 190 is (128,64) (yellow system). .. At this time, the ratio α1 of the GB value of the first sensor 160 is 256/256 = 1, and the ratio α1 of the GB value of the second sensor 190 is 128/64 = 2. In this case, since α1 (ambient light) <α2 (illumination light), in the light emission control unit 180, the yellowish illumination color of the illumination unit 150 detected by the second sensor 190 is the illumination of the ceiling suspension of the kitchen. Decrease the warm color fixed output value and increase the daytime fixed output value so that it approaches the white illumination color.

In order to perform such light emission control, the light emission control unit 180 has a comparator function for comparing the ambient light information detected by the first sensor 160 with the ambient light information detected by the second sensor 190. The light emission control unit 180 uses this comparator function to compare the ratio of the GB value of the color of the light in the kitchen space to the color of the irradiation light emitted by the lighting unit 150, and the irradiation unit 150 irradiates the light. By adjusting the color of the light, the illumination color of the irradiation light emitted by the illumination unit 150 is made close to the illumination color of the illumination suspended from the ceiling of the kitchen.

FIG. 16 is an operation flowchart having a different form from that of FIG. This operation flowchart is processed by the light emission control unit 180 of FIG.

The operation flowchart of FIG. 16 also starts processing by pushing down the lighting switch provided in the switch unit 125 (see FIG. 1) for a predetermined time, and shifts to the automatic toning mode. When the mode shifts to the automatic color matching mode, the light emission control unit 180 detects ambient light and irradiation light information and controls the LED light emission of the illumination unit 150 as follows.

As shown in FIG. 16, the light emission control unit 180 first detects ambient light information (R, G, B) by the first sensor 160 (S300). The ambient light information is, for example, information as a characteristic of light such as the illumination color, wavelength, illuminance, and color temperature of the lighting suspended from the ceiling of the kitchen. Since the first sensor 160 is a color sensor, the illumination color is detected as an RGB value.

Next, the light emission control unit 180 detects information (R, G, B) of the illumination light of the illumination unit 150 by the second sensor 190 (S310). The illumination light information is information as light characteristics such as the illumination color, wavelength, illuminance, and color temperature of the light emitted from the LED 155 constituting the illumination unit 150. Since the second sensor 190 is a color sensor, the illumination color of the illumination unit 150 is detected as an RGB value.

The light emission control unit 180 obtains GB ratio values (α1, α2) from the acquired RGB values of the sensors 160 and 190 (S320). The GB ratio values (α1, α2) are color ratio values. When obtaining the ratio value (α), the calculation method of the ratio value may be changed according to the setting of the sensitivity level of the sensor. Specifically, when the sensitivity level is set low, the number of measurements may be increased and the average ratio may be set as the ratio value (α). For example, when the measurement time is 20 ms, the average ratio of 6 measurements may be used as the ratio value (α). On the other hand, when the sensitivity level is set high, the ratio value (α) may be obtained by reducing the number of measurements. For example, when the measurement time is 200 ms, the ratio of one measurement may be used as the ratio value (α).

The light emission control unit 180 compares the GB ratio value (α1) of the ambient light with the GB ratio value (α2) of the illumination light (S330). When the GB ratio value (α1) and the GB ratio value (α2) are the same value (S330: YES), the process returns to the process of the step of S300 and the process of detecting the ambient light information is performed. On the other hand, if the GB ratio value (α1) and the GB ratio value (α2) are not the same value (S330: NO), the process proceeds to the next step of S340.

The light emission control unit 180 controls the change of the warm color / daylight color output value of the illumination unit 150 according to the comparison result of the GB ratio value. That is, the light emission control unit 180 outputs the warm color / daylight color of the lighting unit 150 so that the GB ratio value (α1) and the GB ratio value (α2) match according to the comparison result between the calculated GB ratio values α1 and α2. Control the change of the value.

Specifically, it is assumed that the GB value detected by the first sensor 160 is (256,256) (white system) and the GB value detected by the second sensor 190 is (128,64) (yellow system). .. At this time, the GB ratio value α1 of the first sensor 160 is 256/256 = 1, and the GB ratio value α2 of the second sensor 190 is 128/64 = 2. In this case, since α1 (ambient light) <α2 (illumination light), in the light emission control unit 180, the yellowish illumination color of the illumination unit 150 detected by the second sensor 190 is the illumination of the ceiling suspension of the kitchen. Decrease the fixed output value for warm colors and increase the fixed output value for daylight colors so that the illumination color is white.

In the present embodiment, the illumination color of the illumination unit 150 is controlled by the binary ratio value of GB instead of the ternary ratio value of RGB. The following effects can be expected by setting the binary value.

When the lighting of the lighting unit 150 mounted on the range hood 100 outputs a color (color temperature) of 2700K to 6500K, when the color (color temperature) of 2700K to 6500K is converted into an RGB value, only the GB value is obtained. It does not change. Therefore, it is not necessary to consider the R value when controlling the illumination color.

Therefore, since it is only necessary to perform the calculation of the GB value, it is not necessary to perform unnecessary calculation, and it is possible to measure the color tone with simple control.

By performing such light emission control by the light emission control unit 180, it is possible to give a sense of unity to the light environment of the kitchen.

As described above, in the first and second embodiments, the color of the light emitted from the lighting unit 150 of the range hood 100 is close to the color of the ambient light of the range hood 100. Even in an environment that is easily affected by external noise, the lighting color of the lighting unit can be harmonized with the surrounding lighting color without receiving external noise, and the lighting environment of the kitchen can be unified. can.

In the first embodiment, it is assumed that the first sensor 160 detects the illumination color of the lighting suspended from the ceiling of the kitchen. However, the target of the lighting color detected by the first sensor 160 is not limited to this, and for example, in the case of lighting in the house such as dining lighting, living room lighting, indirect lighting, etc., the lighting is limited to the ceiling hanging lighting in the kitchen. do not have.

The range hood 100 can also function as indirect lighting. For example, as shown in FIG. 6, a slit for emitting illumination light is provided on the side surface of the blower box 115 of the range hood 100 to irradiate the ceiling with light. The range hood 100 can be used as so-called cove lighting that uses the reflected light from the ceiling as indirect lighting.

Further, as shown in FIG. 7, it is also possible to arrange the lighting unit 150 on the side surface portion or the top surface portion of the range hood 100 and irradiate the wall surface with light to function as indirect lighting. As a result, the range hood 100 can be used as so-called cornice lighting that uses the reflected light from the wall surface as indirect lighting.

Further, the second sensor 190 can detect not only the color of the surrounding lighting but also the color of the interior such as a wall or furniture. As a result, the light emission control unit 180 can produce the softness of the entire room by increasing the daytime fixed output value, for example, in the case of a wall color based on gray such as a concrete wall. Become.

Further, the range hood 100 can be linked with the home lighting device by being connected to the home network. In this case, the RGB values of each lighting device are aggregated in the controller, and the controller collectively controls the control of each lighting device including the lighting unit 150 of the range fu 100 according to the behavior pattern and preference of the home user. The design can be done more favorably.

Although the embodiment of the range hood of the present invention has been described above, the technical scope of the present invention is not limited to the contents disclosed in the present embodiment.

100 Range hood 110 Opening 115 Blower box 120 Hood part 125 Switch part 130 Blower 140 Filter 150 Lighting part 152 Slit light 155 LED
158 Glass substrate 160 1st sensor 162 Sensor substrate 163 Sensor substrate 164 Sensor cover 165 Window 166 Sunther box 168 Opening 170 Sensor mounting 180 Light emission control 190 2nd sensor 200 Heat source 210 Heat source

Claims (7)

A hood section that is located above the cooker and has an opening that sucks in oil smoke generated by cooking.
A blower that generates a suction force for sucking oil smoke from the opening, and
A lighting unit provided on the opening side of the hood portion and having an irradiation angle range on the cooking device side of the hood portion,
A light emission control unit that controls light emission of the lighting unit, and a light emission control unit.
In a range hood equipped with
Further equipped with a first sensor for detecting the ambient light information of the range hood,
The first sensor has a detection area only outside the irradiation angle range of the illumination unit.
The light emission control unit controls light emission based on the information of the ambient light detected by the first sensor.
A range hood that features that. A second sensor provided in the vicinity of the lighting unit and detecting information on the irradiation light emitted from the lighting unit is further provided.
The light emission control unit approaches the ambient light information detected by the first sensor based on the ambient light information detected by the first sensor and the irradiation light information detected by the second sensor. Controls the light emission of the lighting unit,
The range hood according to claim 1. The first sensor and the second sensor are composed of a color sensor.
The light emission control unit controls the illumination color of the lighting unit based on the RGB values detected by the first sensor and the second sensor so as to approach the RGB values detected by the first sensor.
The range hood according to claim 1 or 2, characterized in that. The light emission control unit calculates the color ratio value of at least two colors among the RGB values detected by the first sensor, and the same color as the first sensor among the RGB values detected by the second sensor. By calculating the color ratio value of the above and comparing the calculated color ratio value, the illumination color of the illumination unit is controlled so as to approach the RGB value detected by the first sensor.
The range hood according to claim 3, wherein the range hood is characterized by the above. A sensor mounting portion for mounting the first sensor is provided on the top surface side of the hood portion.
The range hood according to any one of claims 1 to 4. A sensor mounting portion for mounting the first sensor is provided above the hood portion.
The range hood according to any one of claims 1 to 4. A sensor mounting portion for mounting the first sensor is provided on the outer peripheral side surface portion of the hood portion.
The range hood according to any one of claims 1 to 4.

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