A range hood and a control method thereof

Abstract

The present disclosure relates to a range hood and a control method thereof, the range hood comprising a cabinet and a smoke baffle, wherein a temperature detection device is arranged in the cabinet, the temperature detection device is electrically connected to a control module arranged in the cabinet, the temperature detection device sends a detection result to the control module, a lighting lamp is arranged on the smoke baffle, the lighting lamp comprises multiple light-emitting areas, and the control module controls the opening or closing of the light-emitting areas according to the detection result of the temperature detection device; a cleaning assembly is arranged outside the lighting lamp, the cleaning assembly is fixedly connected to an adjusting mechanism, and the cleaning assembly moves linearly with the adjusting mechanism. The present disclosure can automatically adjust the irradiation range of the lighting lamp according to the change of cooking demand, is more intelligent and energy-saving, meets the user's demand for light in actual scenes, can automatically clean the oil stains on the lighting lamp, is more humanized, and improves the user's experience of the product.

Description

Technical Field

[0001] This disclosure relates to the field of range hood technology, and in particular to a range hood and its control method. Background Technology

[0002] As people's living standards improve, they have higher and higher requirements for kitchen lighting experience, which in turn puts forward higher requirements for the lighting effect of range hood lights.

[0003] Conventional side-mounted range hoods have fixed side lights that may not illuminate the inside of the cookware effectively, making it difficult for users to see the food's condition while cooking and negatively impacting the cooking experience. Furthermore, the inability to adjust the lighting range according to actual needs leads to energy waste. The side lights also emit glare, which can be visually distracting for users positioned to the side of the hood. Over time, grease and grime accumulate on the light fixtures, reducing their effectiveness and making them difficult to clean. Summary of the Invention

[0004] In order to solve at least one of the technical problems mentioned above, this disclosure proposes a range hood and its control method.

[0005] In a first aspect, the present disclosure provides a range hood, including a housing and a smoke baffle, wherein a temperature detection device is provided inside the housing, the temperature detection device is electrically connected to a control module provided inside the housing, and the temperature detection device sends the detection result to the control module;

[0006] The smoke baffle is equipped with a light, which includes multiple light-emitting areas. The control module controls the opening or closing of the light-emitting areas based on the detection results of the temperature detection device.

[0007] A cleaning component is provided on the outside of the lighting lamp. The cleaning component is fixedly connected to the adjustment mechanism and moves linearly following the adjustment mechanism.

[0008] In one embodiment, the adjustment mechanism includes a worm gear motor, a rocker arm, and a sliding sleeve. The sliding sleeve is located on the outside of the lighting lamp. The worm gear motor is connected to the rocker arm via a rotating shaft. The lower part of the rocker arm has a hollow section. The sliding sleeve has a fixed shaft, which passes through the hollow section and is connected to the rocker arm.

[0009] In one embodiment, the control module calculates a temperature difference based on the temperature value measured by the temperature detection device. When the temperature difference meets a first preset requirement, the control module controls the adjustment mechanism to move the sliding sleeve to a first position, a second position, or a third position on the lighting lamp. The first position is the first end of the lighting lamp, the third position is the second end opposite to the first end, and the second position is the area between the first position and the third position.

[0010] In one embodiment, the control module calculates the temperature difference based on the temperature value measured by the temperature detection device. When the temperature difference meets the first preset requirement, the control module controls the corresponding light-emitting area to turn on. The light-emitting area is a first light-emitting area, a second light-emitting area, or a third light-emitting area. The first light-emitting area corresponds to the area lighting of the first side burner, the third light-emitting area corresponds to the area lighting of the second side burner opposite to the first side, and the second light-emitting area corresponds to the area lighting between the first side burner and the second side burner.

[0011] In one embodiment, when the lighting time of the lamp reaches a second preset requirement, the control module controls the adjustment mechanism to move the cleaning component and reset the lighting time to zero.

[0012] In one embodiment, the temperature detection device includes an infrared sensor, a panel is fixedly installed on the lower front side of the housing, an infrared window is opened at the center of the panel, and the infrared sensor is located behind the infrared window.

[0013] In one embodiment, a rearwardly extending protrusion consisting of a smoke baffle back plate and a smoke baffle cover plate is fixed to the rear side of the smoke baffle, and a groove is provided on the lower side of the smoke baffle back plate, and a lighting lamp is installed in the groove.

[0014] In one embodiment, the length of the sliding sleeve is less than or equal to the length of the light-emitting area.

[0015] In one embodiment, the cleaning component includes a bushing and a rubber ring, the bushing being fitted into both ends of the sliding sleeve, and the rubber ring being disposed within the bushing.

[0016] Secondly, this disclosure also provides a control method for a range hood, applied to the range hood described in any one of the first aspects, the control method comprising:

[0017] Obtain the temperature value detected by the temperature detection device of the range hood;

[0018] Based on the temperature difference calculated from each of the aforementioned temperature values, the light-emitting area on the range hood's lamp is controlled to open or close.

[0019] The adjustment mechanism of the range hood is controlled based on the temperature difference calculated from each of the aforementioned temperature values.

[0020] Obtain the illumination time of the lamp;

[0021] When the lighting time reaches the second preset requirement, the adjustment mechanism is controlled to move the cleaning component of the range hood to reset the lighting time.

[0022] The technical solutions provided by the embodiments of this disclosure bring at least the following beneficial effects:

[0023] The lighting is positioned on the smoke baffle, preventing users from being visually disturbed by side light when positioned to the side. A temperature detection device monitors the stove's temperature in real time and sends the results to the control module, allowing the module to determine whether the stove is in cooking mode. Based on the temperature detection, the control module controls the on / off state of the lighting area, automatically adjusting the illumination range according to changing cooking needs. This is more intelligent and energy-efficient, meeting different lighting requirements in various scenarios. Furthermore, the control module uses the temperature detection to control the adjustment mechanism, which moves the cleaning component linearly to automatically clean grease from the lighting, enhancing user experience and making the product more user-friendly.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0025] To more clearly illustrate the technical solutions and advantages in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 The overall structure of a range hood according to an embodiment of the present disclosure is shown.

[0027] Figure 2 The working state of the range hood according to an embodiment of the present disclosure is shown.

[0028] Figure 3 A side view of a range hood according to an embodiment of the present disclosure is shown.

[0029] Figure 4 The back structure of the smoke baffle of a range hood according to an embodiment of the present disclosure is shown.

[0030] Figure 5 An adjustment mechanism for a range hood according to an embodiment of the present disclosure is shown.

[0031] Figure 6 A cleaning component for a range hood according to an embodiment of the present disclosure is shown.

[0032] Figure 7 The illustration shows the lighting structure of a range hood according to an embodiment of the present disclosure.

[0033] Figure 8 This illustration shows a lighting structure for another range hood according to an embodiment of the present disclosure.

[0034] Figure 9 A flowchart illustrating a range hood control method according to an embodiment of the present disclosure is shown. Detailed Implementation

[0035] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0036] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0037] Various exemplary embodiments, features, and aspects of this disclosure will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0038] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0039] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0040] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0041] like Figures 1 to 5 As shown, the range hood provided in this embodiment includes a housing 1 and a smoke baffle 2. A temperature detection device is installed inside the housing 1 to monitor the temperature of the cooktop in real time. The temperature detection device is electrically connected to a control module located inside the housing 1, and sends the detection results to the control module. A lighting lamp 21 is installed on the smoke baffle 2. The lighting lamp 21 includes multiple light-emitting areas. The control module controls the opening and closing of the light-emitting areas of the lighting lamp 21 based on the detection results from the temperature detection device. A cleaning component 25 is installed on the outside of the lighting lamp 21. The cleaning component 25 is fixedly connected to an adjustment mechanism 24 and moves linearly along with the adjustment mechanism 24.

[0042] This disclosure does not limit the temperature detection device. In one embodiment, the temperature detection device is an infrared sensor; alternatively, the temperature detection device is an infrared camera. Figure 2 As shown, a panel 11 is fixedly installed on the lower front side of the housing 1. An infrared window 12 is provided in the center of the panel 11. An infrared sensor is located behind the infrared window 12. The infrared sensor can detect the temperature of the two burners in real time through the infrared window 12.

[0043] like Figure 3 , Figure 4 As shown, specifically in this embodiment, the lighting lamp 21 is located on the rear side of the smoke baffle 2 of the range hood. The rear side of the smoke baffle 2 is fixed with a rearwardly extending protrusion consisting of a smoke baffle back plate 22 and a smoke baffle cover plate 23. A groove is provided on the lower side of the smoke baffle back plate 22, and the lighting lamp 21 is installed in the groove. The cross-sectional illumination angle of the lighting lamp 21 is greater than or equal to the opening angle of the smoke baffle 21.

[0044] like Figure 7As shown, the lighting lamp 21 includes a lamp panel 211, a lampshade 212, and LED beads 213. This disclosure does not limit the number of light-emitting segments of the lighting lamp 21. In one embodiment, the lamp panel 211 and lampshade 212 divide the lighting lamp 21 into three light-emitting segments of equal length. The control module turns the corresponding light-emitting segment on or off based on the detection result of the temperature detection device, that is, dynamically adjusts the lighting range according to changes in cooking needs, thereby achieving intelligent and energy-saving lighting. Optionally, as... Figure 8 As shown, the lamp panel and lampshade of a lighting lamp can be made into one piece, which simplifies the structure.

[0045] like Figures 4-6 As shown, the adjustment mechanism 24 includes a worm gear motor 241, a rocker arm 242, and a sliding sleeve 243. The length of the sliding sleeve 243 is less than or equal to the length of the light-emitting area. In one embodiment, the length of the sliding sleeve 243 is equal to the length of each light-emitting segment on the lighting lamp 21. The sliding sleeve 243 is located on the outside of the lighting lamp 21. The worm gear motor 241 is connected to the rocker arm 242 via a rotating shaft 244. The lower part of the rocker arm 242 has a cutout 245. This disclosure does not limit the shape of the cutout. In one embodiment, the cutout 245 is a rounded rectangle. The sliding sleeve 243 has a fixed shaft 246, which passes through the cutout 245 and is connected to the rocker arm 242. The fixed shaft 246 has a nut 247 that mates with it.

[0046] like Figure 6 As shown, the cleaning component 25 includes a bushing 251 and a rubber ring 252. The bushing 251 is embedded at both ends inside the sliding sleeve 243, and the rubber ring 252 is located inside the bushing 251. Based on the detection results from the temperature detection device, the control module controls the adjustment mechanism 24 to drive the cleaning component 25 to move linearly. Specifically, the worm gear motor 241 drives the swing arm 242 to rotate at a certain angle, thereby driving the cleaning component 25 to move linearly. During the movement of the cleaning component 25, the rubber ring 252 can scrape off the oil and dirt adsorbed on the surface of the lighting lamp 21, thus achieving automatic cleaning and greatly improving the user experience.

[0047] The control module calculates the temperature difference based on the temperature value measured by the temperature detection device. When the temperature difference meets the first preset requirement, the control module controls the adjustment mechanism 24 to move the sliding sleeve 243 to a first, second, or third position on the lighting lamp 21. The first position is the first end of the lighting lamp 21, the third position is the second end opposite to the first end, and the second position is the area between the first and third positions. At the same time, when the temperature difference meets the first preset requirement, the control module controls the corresponding light-emitting area to turn on or off. The light-emitting area is the first, second, or third light-emitting area. The first light-emitting area corresponds to the area lighting of the first side burner, the third light-emitting area corresponds to the area lighting of the second side burner opposite to the first side, and the second light-emitting area corresponds to the area lighting between the first and second side burners. This disclosure does not limit the length of the lighting lamp 21 and the length of the sliding sleeve 243. In one embodiment, the length of the lighting lamp is 18cm, the length of the sliding sleeve is 6cm, the lighting lamp is divided into 3 light-emitting areas, each of which is 6cm long. The leftmost light-emitting area is the first light-emitting area, the middle light-emitting area is the second light-emitting area, and the rightmost light-emitting area is the third light-emitting area. When the sliding sleeve is located at the rightmost side of the lighting lamp 21, the distance from the center of the rotating shaft on the worm motor to the center of the fixed shaft on the sliding sleeve is 12cm.

[0048] When the range hood is turned on, the control module determines whether the stove is on based on the real-time detection results of the temperature detection device, thereby controlling the on or off of the light-emitting area of ​​the lamp 21. This allows for automatic adjustment of the illumination range of the lamp 21 according to changes in cooking needs, making the range hood more intelligent and energy-efficient, and improving the user experience. At the same time, the control module uses the real-time detection results of the temperature detection device to control the adjustment mechanism 24 to drive the cleaning component 25 to move linearly, which can automatically clean the grease on the lamp 21, saving time and effort, making it more user-friendly, and improving the user's product experience. Placing the lamp 21 on the smoke baffle avoids the user's view being easily disturbed by side light when standing on the side.

[0049] When the illumination time of the lighting lamp 21 reaches the second preset requirement, the control module controls the adjustment mechanism 24 to move the cleaning component 25, resetting the illumination time to zero. After the lighting lamp 21 has been used for a certain period, the control module automatically controls the cleaning component 25 to perform cleaning operations, ensuring the cleanliness and luminous efficiency of the lighting lamp 21. Simultaneously, by automatically resetting the illumination time, the usage status of the lighting lamp 21 can be better monitored and managed, ensuring lighting effects and saving on manual maintenance costs.

[0050] Based on the above-described range hood, the control method of the range hood according to the embodiments of this application will be described below with reference to the accompanying drawings. The method is applied to a control module, which can be the control module described above.

[0051] This disclosure also provides a control method for a range hood, such as... Figure 9 As shown, this method is implemented using the range hood of Embodiment 1 described above, and includes the following steps:

[0052] S01. The power button for the range hood has been pressed.

[0053] S02. The temperature detection device monitors the temperature values ​​of the left and right burners in real time.

[0054] S03. Calculate the temperature difference based on each temperature value, and determine in real time whether the temperature difference meets the preset requirements. If it meets the corresponding preset requirements, control the adjustment mechanism 24 to move the cleaning component 25 to the corresponding position, and at the same time control the corresponding light-emitting area to turn on or off.

[0055] S04. When the power off button is detected to be pressed, determine whether the cumulative lighting time of the lamp 21 meets the preset time. If the cumulative lighting time is less than or equal to the preset time, reset the lever 242, that is, move the sliding sleeve 243 to the middle position of the lamp 21 and close the smoke baffle 2. If the cumulative lighting time is greater than the preset time, start self-cleaning, that is, control the adjustment structure 24 to drive the cleaning component 25 on the lamp 21 from the first position to the third position, and then from the third position to the first position, and reset the cumulative lighting time to zero.

[0056] According to the control method of the range hood according to the embodiment of the present invention, since the range hood is implemented as described above, the control module can know whether the stove is on by the real-time detection result of the temperature detection device. In this way, the control module can control the opening or closing of the light-emitting area of ​​the lighting lamp 21 to meet the adjustment of the illumination range of the lighting lamp 21 under different cooking needs. This not only saves energy but also makes the range hood more intelligent and improves the user experience. At the same time, the control module controls the adjustment mechanism 24 to drive the cleaning component 25 to move linearly by the real-time detection result of the temperature detection device, so as to automatically clean the oil stains on the lighting lamp 21, which saves time and effort, is more user-friendly, and improves the user's product experience.

[0057] like Figure 5 As shown, the line connecting the center of the rotating shaft 244 on the worm motor 241 and the center of the lighting lamp 21 is perpendicular to the lighting lamp 21. The length of the lighting lamp 21 is L, and the length of the sliding sleeve 243 is m. When the sliding sleeve 243 is located at the rightmost end of the lighting lamp 21, the distance from the center of the rotating shaft 244 to the center of the fixed shaft 246 is D, and β is the angle between the line connecting the center of the rotating shaft 244 and the center of the lighting lamp 21 and the swing rod 242. When the control module determines the temperature difference ΔT of the left burner head... 左 The temperature difference ΔT between the right burner heads is greater than 0. 右When the value equals 0, the worm motor drives the rocker arm to rotate to the right to its maximum angle. When the control module determines the temperature difference ΔT between the left burner head... 左 The temperature difference ΔT between the right burner and the burner is equal to 0. 右 When the value is greater than 0, the worm motor drives the rocker arm to rotate left to the maximum angle. When the control module determines the temperature difference ΔT between the left burner head... 左 The temperature difference ΔT between the right burner heads is greater than 0. 右 When the value is greater than 0, the worm gear motor drives the rocker arm to rotate to an angle of 0. When β is positive, it means that the pendulum is to the right of the line connecting the center of the pivot 244 and the center of the lighting lamp 21. When β is negative, it means that the pendulum is to the left of the line connecting the center of the pivot 244 and the center of the lighting lamp 21.

[0058] Specifically, step S03 includes the following sub-steps:

[0059] S031, The left burner is turned on, and the control module determines the temperature difference ΔT between the left burner and the burner. 左 The temperature difference ΔT between the right burner and the burner is greater than 0. 右 When the value is 0, the control module controls the first and second light-emitting areas to turn on and the third light-emitting area to turn off. It also controls the adjustment mechanism 24 to move the cleaning component 25 to the third position, that is, the worm motor 241 drives the swing arm 242 to turn right to the maximum angle β = 30°. At this time, the sliding sleeve 243 is located on the rightmost side of the lighting lamp 21.

[0060] S032, The right burner is turned on, and the control module determines the temperature difference ΔT between the right burner and the burner. 右 The temperature difference ΔT between the left and right burner heads is greater than 0. 左 When the value equals 0, the control module controls the second and third light-emitting areas to turn on, the first light-emitting area to turn off, and controls the adjustment mechanism 24 to drive the cleaning component 25 to move to the first position, that is, the worm motor 241 drives the swing arm 242 to turn left to the maximum angle β = 30°, at which time the sliding sleeve 243 is located on the leftmost side of the lighting lamp 21;

[0061] S033, Both the left and right burners are turned on. The control module determines the temperature difference ΔT of the left burner. 左 The temperature difference ΔT between the right burner and the burner is greater than 0. 右 When the value is greater than 0, the control module controls the first and third light-emitting areas to turn on, and the second light-emitting area to turn off. It also controls the adjustment mechanism 24 to move the cleaning component 25 to the second position. The second position is where the worm gear motor 241 drives the swing arm 242 to rotate to an angle of [insert angle here]. The position of the sliding sleeve 243 is defined by β, where β is the angle between the line connecting the center of the shaft of the worm motor 241 and the center of the lighting lamp 21 and the swing arm 242. When β is positive, it means that the swing arm 242 is to the right of the line connecting the center of the shaft of the worm motor 241 and the center of the lighting lamp 21. When β is negative, it means that the swing arm 242 is to the left of the line connecting the center of the shaft of the worm motor 241 and the center of the lighting lamp 21. Specifically, when the temperature difference between the left and right burners is equal, the worm motor 241 drives the swing arm 242 to rotate to an angle of β = 0°. At this time, the sliding sleeve 243 is located in the middle position of the lighting lamp 21.

[0062] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A range hood characterized by, Includes the enclosure and smoke baffle; among which, The enclosure is equipped with a temperature detection device, which is electrically connected to a control module located inside the enclosure. The temperature detection device sends the detection results to the control module. The smoke baffle is equipped with a light, which includes multiple light-emitting areas. The control module controls the opening or closing of the light-emitting areas based on the detection results of the temperature detection device. A cleaning component is provided on the outside of the lighting lamp. The cleaning component is fixedly connected to the adjustment mechanism, and the cleaning component moves linearly following the adjustment mechanism. When the left burner is turned on, the control module determines that the temperature difference between the left burner and the right burner is greater than 0, while the temperature difference is equal to 0. The control module then activates the first and second luminous areas, deactivates the third luminous area, and controls the adjustment mechanism to move the cleaning component to the third position. When the right burner is turned on, the control module determines that the temperature difference between the right burner and the left burner is greater than 0, activates the second and third luminous areas, deactivates the first luminous area, and controls the adjustment mechanism to move the cleaning component to the first position. When both the left and right burners are turned on, the control module determines that the temperature difference between the left and right burners is greater than 0, activates the first and third luminous areas, deactivates the second luminous area, and controls the adjustment mechanism to move the cleaning component to the second position.

2. The range hood according to claim 1, characterized in that The adjustment mechanism includes a worm gear motor, a rocker arm, and a sliding sleeve. The sliding sleeve is located on the outside of the lighting lamp. The worm gear motor is connected to the rocker arm via a rotating shaft. The lower part of the rocker arm has a hollow section. The sliding sleeve has a fixed shaft, which passes through the hollow section and is connected to the rocker arm.

3. The range hood according to claim 1, characterized in that, When the lighting time of the lamp reaches the second preset requirement, the control module controls the adjustment mechanism to move the cleaning component and reset the lighting time to zero.

4. A range hood according to claim 1, characterized in that, The temperature detection device includes an infrared sensor. A panel is fixedly installed on the lower front side of the housing. An infrared window is opened in the center of the panel, and the infrared sensor is located behind the infrared window.

5. The range hood according to claim 1, wherein The smoke baffle has a rearwardly extending protrusion consisting of a smoke baffle back plate and a smoke baffle cover plate. A groove is provided on the lower side of the smoke baffle back plate, and a lighting lamp is installed in the groove.

6. The range hood according to claim 2, wherein The length of the sliding sleeve is less than or equal to the length of the light-emitting area.

7. The range hood according to claim 2, wherein The cleaning component includes a bushing and a rubber ring. The bushing is embedded at both ends inside the sliding sleeve, and the rubber ring is disposed inside the bushing.

8. A control method of a range hood, characterized by, The control method, applied to any one of claims 1-7, comprises: Obtain the temperature value detected by the temperature detection device of the range hood; Based on the temperature difference calculated from each of the aforementioned temperature values, the light-emitting area on the range hood's lamp is controlled to open or close. The adjustment mechanism of the range hood is controlled based on the temperature difference calculated from each of the aforementioned temperature values. Obtain the illumination time of the lamp; When the lighting time reaches the second preset requirement, the adjustment mechanism is controlled to move the cleaning component of the range hood to reset the lighting time.

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