Range hood

Abstract

The utility model provides a range hood. The range hood comprises a main box, a smoke collecting cavity assembly, a temperature sensor and a smoke sensor, the smoke collecting cavity assembly is arranged below the main box and comprises a smoke collecting cavity body and a turning plate rotationally connected with the smoke collecting cavity body, and the turning plate rotates to open or close a smoke collecting cavity in the smoke collecting cavity body; the temperature sensor is arranged on the smoke collecting cavity main body and is higher than the turning plate; the smoke sensor is arranged in the main box; the smoke sensor is arranged in the range hood to detect the smoke value after the range hood is started, so that the problems that after the range hood is started, the turning plate is opened, the detection area of the temperature sensor is blocked, the temperature sensor is difficult to detect the accurate value, and the accuracy of wind speed adjustment and automatic shutdown of the range hood is affected are solved.

Description

Technical Field

[0001] This application belongs to the field of range hood technology, and specifically relates to a range hood. Background Technology

[0002] As an indispensable appliance in modern kitchens, range hoods mainly consist of a fan, a smoke collection chamber, and an exhaust pipe. Their working principle is to use the negative pressure generated by the fan to draw the cooking fumes into the smoke collection chamber and exhaust them outdoors through the exhaust pipe, thereby improving indoor air quality and protecting the kitchen environment.

[0003] In existing technology, range hoods with flaps have significant advantages in smoke collection and exhaust. These range hoods have a flap that can be automatically opened and closed at the smoke collection chamber inlet. When the machine is turned on, a built-in temperature sensor detects an increase in temperature near the stove, so the machine automatically turns on and opens the flap to allow smoke to escape. After the machine is turned on, the range hood operates at different fan speeds according to temperature changes. When the temperature drops, the range hood automatically turns off and closes the flap.

[0004] However, in the aforementioned range hoods with a flap design, the flap opens after the hood is turned on, blocking the detection area of ​​the temperature sensor. This makes it difficult for the temperature sensor to detect accurate values, affecting the accuracy of the range hood's fan speed adjustment and automatic shutdown. Utility Model Content

[0005] This application provides a range hood to solve the problem that when the flap of an existing range hood is opened, the temperature sensor has difficulty detecting accurate values, which affects the accuracy of the range hood's fan speed adjustment and automatic shutdown.

[0006] In a first aspect, this application provides a range hood, including: a main box, a smoke collection chamber assembly, a temperature sensor, and a smoke sensor;

[0007] The smoke collection chamber assembly is located below the main box. The smoke collection chamber assembly includes a smoke collection chamber body and a flap that is rotatably connected to the smoke collection chamber body. The flap rotates to open or close the smoke collection chamber on the smoke collection chamber body.

[0008] The temperature sensor is located on the main body of the smoke collection chamber at a position higher than the flap; the smoke sensor is located inside the main box.

[0009] In some embodiments, the smoke collection chamber body includes a top plate and a side plate, the flap is disposed on the side plate, and the temperature sensor is disposed on the top plate.

[0010] In some embodiments, the range hood further includes: a first fixing member and a clamping claw, the clamping claw being disposed on the first fixing member;

[0011] The top plate has an opening that matches the size of the first fixing member. The first fixing member is installed at the opening of the top plate. The first fixing member has an opening that matches the size of the temperature sensor. The temperature sensor is engaged with the opening of the first fixing member by at least two of the claws.

[0012] In some embodiments, the range hood further includes: a second fixing member;

[0013] The smoke sensor is fixed to the platform structure inside the main box by the second fastener.

[0014] In some embodiments, the range hood further includes: the smoke sensor includes a transmitter and a receiver, the transmitter and the receiver being arranged vertically.

[0015] In some embodiments, the range hood further includes: an oil-proof cover;

[0016] The oil-proof cover covers the smoke sensor above and to the side.

[0017] The range hood provided in this application includes: a main box, a smoke collection chamber assembly, a temperature sensor, and a smoke sensor. The smoke collection chamber assembly is located below the main box and includes a smoke collection chamber body and a flap rotatably connected to the smoke collection chamber body. The flap rotates to open or close the smoke collection chamber on the smoke collection chamber body. The temperature sensor is located on the smoke collection chamber body at a position higher than the flap, and the smoke sensor is located inside the main box. The range hood is equipped with a smoke sensor to detect the smoke value after the machine is turned on. This solves the problem that after the machine is turned on, the flap opens and blocks the detection area of ​​the temperature sensor, making it difficult for the temperature sensor to detect accurate values, which affects the accuracy of the range hood's fan speed adjustment and automatic shutdown. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] Figure 1 The structural diagram of the range hood provided in this application Figure 1 ;

[0020] Figure 2 The structural diagram of the range hood provided in this application Figure 2 ;

[0021] Figure 3 The structural diagram of the range hood provided in this application Figure 3 ;

[0022] Figure 4This is a schematic diagram showing the layout of the temperature sensor in the range hood provided in this application;

[0023] Figure 5 for Figure 4 A schematic diagram of the temperature sensor in the diagram;

[0024] Figure 6 This is a schematic diagram of the layout of the smoke sensor for the range hood provided in this application;

[0025] Figure 7 for Figure 6 A schematic diagram of the layout of the smoke sensor in the image;

[0026] Figure 8 for Figure 7 A structural diagram from another angle.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Main box; 2-Smoke collection chamber assembly; 3-Temperature sensor; 4-Smoke sensor; 5-First fixing component; 6-Claw; 7-Second fixing component; 8-Oil-proof cover;

[0029] 11-Platform structure; 21-Main body of smoke collection chamber; 22-Flip plate; 211-Top plate; 212-Side plate;

[0030] 31 - Temperature detection area; 41 - Smoke detection area.

[0031] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0039] In existing technology, range hoods with flaps exhibit significant advantages in smoke collection and exhaust. These range hoods feature an automatically opening and closing flap at the smoke collection chamber inlet. Upon startup, a built-in temperature sensor detects a rise in temperature near the stove, automatically activating and opening the flap. After startup, the range hood automatically adjusts to different fan speeds based on temperature changes; when the temperature drops, the device automatically shuts off and closes the flap.

[0040] However, existing range hoods have a problem: the opening of the flap after powering on obstructs the temperature sensor's detection area, making it difficult for the sensor to obtain accurate temperature values. This not only affects the range hood's precise adjustment of the fan speed but may also lead to misjudgments regarding the timing of automatic shutdown, thus reducing the user experience.

[0041] To address the aforementioned technical problems, this application proposes a range hood, including a main chamber, a smoke collection chamber assembly, a temperature sensor, and a smoke sensor. The smoke collection chamber assembly is located below the main chamber and consists of a smoke collection chamber body and a flap rotatably connected to it. The flap is used to open or close the smoke collection chamber on the smoke collection chamber body. The temperature sensor is located on the smoke collection chamber body above the flap, and the smoke sensor is located inside the main chamber. This range hood, by introducing a smoke sensor and rationally arranging the various sensors, uses the temperature sensor to detect the temperature of the stove in real time before starting the machine. After starting the machine, the smoke sensor is used to detect the smoke concentration in the area through which the oil fumes pass inside the main chamber. Thus, by using both the temperature sensor and the smoke sensor simultaneously, the system can more comprehensively understand the environmental changes during cooking, providing richer data support for the control system. This solves the problem that after starting the machine, the flap opens and blocks the detection area of ​​the temperature sensor, making it difficult for the temperature sensor to detect accurate values, which affects the accuracy of the range hood's fan speed adjustment and automatic shutdown.

[0042] The technical solutions of this application and how they solve the aforementioned technical problems are described in detail below with specific embodiments. These specific embodiments can be implemented independently or in combination with each other. Identical or similar concepts or processes may not be repeated in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0043] Figure 1 A schematic diagram of the structure of the range hood provided in the embodiments of this application. Figure 1 , Figure 2 A schematic diagram of the structure of the range hood provided in the embodiments of this application. Figure 2 , Figure 3 A schematic diagram of the structure of the range hood provided in the embodiments of this application. Figure 3 ,in, Figure 1 This refers to the state where the flap is closed before the range hood is turned on, and Figure 2 This refers to the open position of the flap after the range hood is turned on. Figures 1 to 3 As shown, the range hood provided in this embodiment includes: a main box 1, a smoke collection chamber assembly 2, a temperature sensor 3, and a smoke sensor 4. The smoke collection chamber assembly 2 is located below the main box 1. The smoke collection chamber assembly 2 includes a smoke collection chamber body 21 and a flap 22 rotatably connected to the smoke collection chamber body 21. The flap 22 rotates to open or close the smoke collection chamber on the smoke collection chamber body 21. The temperature sensor 3 is located on the smoke collection chamber body 21 at a position higher than the flap 22. The smoke sensor 4 is located inside the main box 1.

[0044] Among them, temperature sensor 3 is used to detect the temperature of the stove below the range hood, that is, the temperature value within the temperature detection area 31, and smoke sensor 4 is used to detect the smoke concentration in the area through which the oil fumes pass inside the main box, that is, the smoke value within the smoke detection area 41.

[0045] Specifically, before the range hood is turned on, the user lights the stove to raise the temperature of the stove. The temperature sensor 3 detects the start of cooking by collecting multiple continuous temperature values. The range hood turns on by itself and controls the flap 22 to rotate and open. The opened flap 22 allows the oil fumes to enter the main body 21 of the smoke collection chamber smoothly, and then be sucked into the fan in the main box 1 and discharged outdoors through the smoke exhaust pipe.

[0046] During the operation of the range hood, the flap 22 remains open to ensure smooth airflow. At this time, the smoke sensor 4 collects multiple continuous smoke values. Based on the smoke values ​​detected by the smoke sensor 4 and the preset thresholds of each setting, the range hood adjusts its fan speed to adapt to different cooking needs.

[0047] When cooking is finished, the range hood combines the smoke level detected by the smoke sensor 4 and the temperature level detected by the temperature sensor 3. If both the smoke and temperature levels meet the corresponding shutdown conditions (e.g., the temperature continues to drop and the smoke fluctuation is less than a preset threshold), the system controls the range hood to shut down and close the flap 22. The closed flap 22 effectively prevents outside air (including odors and dust) from flowing back into the kitchen through the exhaust duct, maintaining indoor air quality.

[0048] Here, the temperature sensor 3 can be, for example, a thermocouple sensor, a resistance temperature sensor, a thermistor sensor, an infrared temperature sensor, a digital temperature sensor, etc., and this application does not impose any special restrictions on it; the smoke sensor 4 can be, for example, a photoelectric smoke sensor, a gas-sensitive resistor smoke sensor, a laser scattering smoke sensor, etc., and this application does not impose any special restrictions on it.

[0049] The main housing 1 of the range hood is located above the smoke collection chamber, and it houses the fan system, filter, and control panel. The fan system draws in cooking fumes and exhausts them outdoors through the exhaust pipe. The filter removes particles and impurities from the fumes. The flap 22 is rotatably connected to the main body 21 of the smoke collection chamber and can be automatically opened and closed by a motor or other drive device.

[0050] The range hood provided in this embodiment includes: a main box, a smoke collection chamber assembly, a temperature sensor, and a smoke sensor. The smoke collection chamber assembly is located below the main box and includes a smoke collection chamber body and a flap rotatably connected to the smoke collection chamber body. The flap rotates to open or close the smoke collection chamber on the smoke collection chamber body. The temperature sensor is located on the smoke collection chamber body at a position higher than the flap, and the smoke sensor is located inside the main box. The range hood is equipped with a smoke sensor to detect the smoke value after the machine is turned on. This solves the problem that after the machine is turned on, the flap opens and blocks the detection area of ​​the temperature sensor, making it difficult for the temperature sensor to detect accurate values, which affects the accuracy of the range hood's fan speed adjustment and automatic shutdown.

[0051] See Figures 2 to 4 In some embodiments, the main body 21 of the smoke collection chamber includes a top plate 211 and a side plate 212, a flap 22 is disposed on the side plate 212, and a temperature sensor 3 is disposed on the top plate 211.

[0052] The top plate 211 is located on top of the smoke collection chamber body 21, and is used to seal the smoke collection chamber and serve as a base platform for installing the temperature sensor 3 and other components (such as lighting devices).

[0053] The side plate 212 is arranged around the side of the main body 21 of the smoke collection chamber, and together with the top plate 211, it forms a closed smoke collection chamber space. The side plate 212 is used to guide the oil fumes into the smoke collection chamber and finally be sucked into the fan system in the main box 1. In addition, the side plate 212 is also used to support and fix the flap 22.

[0054] In some embodiments, the smoke collection chamber body 21 further includes a bottom plate, and the top plate 211, the side plate 212 and the bottom plate are integrally formed.

[0055] Specifically, unibody molding refers to the process of molding an entire component in one go within a single mold. Compared to traditional step-by-step manufacturing processes, unibody molding simplifies the manufacturing process and offers higher precision, production efficiency, and lower production costs.

[0056] For example, the flap 22 can be connected to the side plate 212 via a hinge. In a specific implementation, the flap 22 is mounted on the side plate 212 via a hinge, allowing it to rotate around the hinge axis. One end of the hinge is fixed to the side plate 212, and the other end is connected to the flap 22. When the range hood's control system issues a command, the drive device will drive the flap 22 to rotate along the hinge axis, thereby realizing the opening and closing action.

[0057] Optionally, the flap 22 can also be connected to the side plate 212 via a pivot pin. In practice, the pivot pin passes through the side plate 212 and the flap 22, and is supported by a bearing, allowing the flap 22 to rotate freely on the pivot pin. The control system drives the flap 22 to rotate along the pivot pin to complete the opening and closing action.

[0058] In this embodiment, the range hood has a temperature sensor 3 mounted on the top plate 211, facing the stove, so that the temperature sensing area 31 can cover the stove surface. The temperature sensor 3 is used to monitor the temperature changes of the stove surface in real time, providing temperature data to the control system as a basis for decision-making when turning the hood on and off.

[0059] like Figure 5 As shown, in some embodiments, the range hood further includes: a first fixing member 5 and a claw 6, the claw 6 being disposed on the first fixing member 5, the top plate 211 having an opening matching the size of the first fixing member 5, the first fixing member 5 being installed at the opening of the top plate 211, the first fixing member 5 having an opening matching the size of the temperature sensor 3, the temperature sensor 3 being engaged with the opening of the first fixing member 5 by at least two claws 6.

[0060] In practice, the first fixing member 5 can be set as a buckle structure to provide a stable mounting platform for the temperature sensor 3, and has an opening that matches the size of the temperature sensor 3 to ensure that the temperature sensor can be installed correctly.

[0061] The claws 6 are mounted on the first fixing member 5 and distributed around the opening of the temperature sensor 3. At least two claws 6 securely engage the temperature sensor 3 with the opening of the first fixing member 5. The claws 6 are made of elastic material or have a spring-loaded structure to ensure that the temperature sensor 3 is securely installed and easily disassembled. The temperature sensor 3 is engaged with the opening of the first fixing member 5 by the claws 6, facing the stove direction.

[0062] The range hood provided in this embodiment, through the design of the first fixing member and the claw, allows the temperature sensor to be firmly fixed to the top plate, preventing displacement or damage caused by vibration or external impact. The claw facilitates the installation and removal of the temperature sensor, thus simplifying maintenance. If the temperature sensor or the first fixing member needs to be replaced, this modular design is simple to operate, requiring no re-drilling or adjustment of other components.

[0063] like Figure 6 and Figure 7 As shown, in some embodiments, the range hood further includes a second fixing member 7, through which the smoke sensor 4 is fixed to the platform structure 11 inside the main box 1.

[0064] The platform structure 11 is located at the bottom of the main box 1, and the second fixing member 7 is used to connect the main box 1 and the smoke collection chamber body 21.

[0065] In a practical implementation, the second fixing member 7 can be configured as a plate-like structure. This provides a stable mounting platform for the smoke sensor 4, ensuring that the smoke sensor 4 does not shift or loosen during operation. For example, the smoke sensor 4 can be fixed to the second fixing member 7 with screws.

[0066] Furthermore, in a specific example, the smoke sensor 4 includes a transmitter 42 and a receiver 43, which are arranged vertically.

[0067] The transmitter 42 is located above the receiver 43. The transmitter 42 is used to emit infrared light to detect smoke particles in the air. The receiver 43 is located below the transmitter 42 and is used to receive the light emitted from the transmitter 42 and scattered back by the smoke particles.

[0068] When the range hood is off, the light emitted by the transmitter 42 travels in a straight line. Since there are no smoke particles in the smoke detection area 41, the light is not significantly scattered, so the receiver 43 receives almost no light. When the range hood is turned on and smoke enters the smoke detection area, the smoke particles scatter the light emitted by the transmitter 42. The scattered light is captured by the receiver 43, which converts the received light signal into an electrical signal and, through a series of processing steps, ultimately generates a value representing the smoke concentration.

[0069] Here, the greater the intensity of the scattered light received by receiver 43, the higher the smoke concentration and the greater the smoke value. The system can adjust the wind speed level, etc., according to the preset threshold.

[0070] The range hood provided in this embodiment, by setting up a transmitter and a receiver, enables the emission and reception detection area of ​​the smoke sensor to cover the entire area inside the main box through which the oil fumes pass, so that the oil fumes can be accurately detected, thereby improving the accuracy of adjusting the fan speed of the range hood.

[0071] like Figure 7 and Figure 8 As shown, in some embodiments, the range hood further includes an oil shield 8, the cover of which covers the smoke sensor 4 above and to the side.

[0072] The oil shield 8 can be made of high-temperature resistant and corrosion-resistant materials (such as stainless steel, aluminum alloy or special plastics). The oil shield 8 is used to prevent oil fumes from causing direct fumigation pollution to the detection window of the smoke sensor 4, and to prevent oil droplets inside the main box 1 from falling directly onto the detection window of the smoke sensor 4, thereby ensuring the long-term stable operation and accurate detection of the smoke sensor 4.

[0073] In practice, the smoke sensor 4 and the oil-proof cover 8 covering it are both fixed to the second fixing member 7 by screws, so as to be fixed to the platform structure 11 inside the main box 1 by the second fixing member 7.

[0074] In some embodiments, the opening of the oil shield 8 faces the signal transmission direction of the smoke sensor 4, and the opening of the oil shield 8 gradually expands along the signal transmission direction.

[0075] The opening of the oil shield 8 faces the signal transmission direction of the smoke sensor 4 and gradually expands along the signal transmission direction. In this way, the smoke sensor 4 is not only protected from the influence of oil fumes and other pollutants, but the airflow path is also optimized to ensure that the light emitted by the transmitter 42 can effectively detect smoke particles in the air.

[0076] For example, the oil shield 8 can be a shield with an opening facing forward. The base of the oil shield includes a front part and a rear part that are connected and communicate with each other. The left and right sides of the front part gradually expand outward from back to front. The cross-section of the rear part is equal at the top and bottom and is rectangular. The front part refers to the opening direction of the oil shield 8, that is, the signal transmission direction.

[0077] In some embodiments, the top of the oil shield 8 has a drainage structure.

[0078] Among them, the drainage structure at the top of the oil shield 8 can refer to a sloping drainage surface, a corrugated surface, a conical top cover, raised ribs, etc.

[0079] For example, since the smoke sensor 4 is installed inside the main box 1 of the range hood, in order to guide the oil in the area above the installation position of the smoke sensor 4 downward and avoid accumulation or buildup on the oil cover 8, the top of the oil cover 8 can be provided with an oil guiding slope that gradually slopes downward from the middle to both sides.

[0080] In some embodiments, the range hood further includes a control board electrically connected to the smoke sensor 4, and the smoke sensor 4 and the temperature sensor 3 are electrically connected.

[0081] The control board is located in the main box 1. It is used to control the range hood to turn on based on the temperature value detected by the temperature sensor 3, adjust the fan speed of the range hood based on the smoke value detected by the smoke sensor 4, and control the range hood to turn off based on the temperature value detected by the temperature sensor 3 and the smoke value detected by the smoke sensor 4.

[0082] Specifically, before the range hood is turned on, the user lights the stove, causing the stove temperature to rise. Temperature sensor 3 collects multiple consecutive temperature values ​​and sends them to the range hood's control board. The control board processes these consecutive temperature values ​​to determine whether to turn the range hood on. After the range hood is turned on, the flap 22 is in the open state. At this time, smoke sensor 4 collects multiple consecutive smoke values ​​and sends them to the control board. The control board adjusts the range hood's fan speed level based on these consecutive smoke values ​​and preset thresholds for each speed setting. When determining when to turn off the range hood, the control board combines the smoke values ​​detected by smoke sensor 4 and the temperature values ​​detected by temperature sensor 3. Only when both the smoke and temperature values ​​meet the corresponding shutdown conditions will the range hood be turned off.

[0083] In some embodiments, the control board is electrically connected to the smoke sensor 4 and the temperature sensor 3, respectively.

[0084] The smoke sensor 4 and the temperature sensor 3 can be electrically connected to form a detection device. This detection device can be applied to range hoods with a flap-type cross-section, and of course it can also be applied to other types of range hoods, such as top-mounted range hoods, side-mounted range hoods, integrated stove range hoods, wall-mounted range hoods, etc. This application does not limit this application.

[0085] In the above description, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A range hood, characterized in that, include: Main chamber, smoke collection chamber assembly, temperature sensor and smoke sensor; The smoke collection chamber assembly is located below the main box. The smoke collection chamber assembly includes a smoke collection chamber body and a flap that is rotatably connected to the smoke collection chamber body. The flap rotates to open or close the smoke collection chamber on the smoke collection chamber body. The temperature sensor is located on the main body of the smoke collection chamber at a position higher than the flap; the smoke sensor is located inside the main box.

2. The range hood according to claim 1, characterized in that, The main body of the smoke collection chamber includes a top plate and a side plate, with the flap plate disposed on the side plate and the temperature sensor disposed on the top plate.

3. The range hood according to claim 2, characterized in that, Also includes: A first fixing member and a locking claw, wherein the locking claw is disposed on the first fixing member; The top plate has an opening that matches the size of the first fastener. The first fastener is installed at the opening of the top plate. The first fastener has an opening that matches the size of the temperature sensor. The temperature sensor is engaged with the opening of the first fastener by at least two of the claws.

4. The range hood according to claim 1, characterized in that, Also includes: Second fastener; The smoke sensor is fixed to the platform structure inside the main box by the second fastener.

5. The range hood according to claim 4, characterized in that, The smoke sensor includes a transmitter and a receiver, which are arranged vertically.

6. The range hood according to claim 4, characterized in that, Also includes: Oil shield; The oil-proof cover covers the smoke sensor above and to the side.

7. The range hood according to claim 6, characterized in that, The opening of the oil-proof cover faces the signal transmission direction of the smoke sensor, and the opening of the oil-proof cover gradually widens along the signal transmission direction.

8. The range hood according to claim 6, characterized in that, The top of the oil shield has a drainage structure.

9. The range hood according to any one of claims 1-8, characterized in that, Also includes: A control board is electrically connected to the smoke sensor, and the smoke sensor is electrically connected to the temperature sensor.

10. The range hood according to any one of claims 1-8, characterized in that, Also includes: A control board, which is electrically connected to the smoke sensor and the temperature sensor, respectively.

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