An ultra-thin range hood

Abstract

The utility model discloses an ultra -thin range hood, including the window of the front plate has the smoke collecting casing, the fan of being located in the smoke collecting casing, set up in the temperature sensor of smoke collecting casing, the bottom plate of smoke collecting casing is equipped with through -hole and makes temperature sensor part expose, is used for detecting the temperature of the pot that places on the stove to give the judgment condition of fan regulation frequency, temperature sensor includes the temperature -sensitive sensor of temperature -proof protective shell and being located in temperature -proof protective shell. The utility model has the beneficial effect that can shorten the distance of temperature sensor and stove to improve detection accuracy, and can effectively reduce the working temperature of temperature sensor.

Description

Technical Field

[0001] This utility model relates to an ultra-thin range hood, belonging to the technical field of kitchen appliances. Background Technology

[0002] Ultra-thin range hoods are a modern kitchen appliance characterized by their slim body, efficient exhaust, and stylish design, making them suitable for consumers who value both aesthetics and functionality. Currently, to provide cooks with a better experience and increase automation, temperature sensors are one option. These sensors detect the center temperature of the pot on the cooktop to determine the cooking status. By processing the measured temperature data, they adjust the range hood's power accordingly, enabling more intelligent and timely exhaust of fumes. Furthermore, they achieve cooktop-range hood linkage, automatically turning the cooktop on and off based on temperature readings to prevent dry burning and make the kitchen safer.

[0003] However, in existing technology, the typical operating temperature range of temperature sensors is -40℃ to 85℃. Exceeding this temperature range will affect the normal performance of the temperature sensor and may even cause it to overheat and be damaged. By placing the temperature sensor in a part of the range hood away from the cooktop (e.g., on top of the range hood), the operating temperature of the temperature sensor can be effectively reduced. However, the farther the temperature sensor is from the cooktop, the lower the detection accuracy, and the detection field of view is also easily obstructed by functional components such as the rotatable and adjustable smoke baffle of the range hood. Utility Model Content

[0004] The purpose of this invention is to provide an ultra-thin range hood that can shorten the distance between the temperature sensor and the cooktop to improve detection accuracy and effectively reduce the operating temperature of the temperature sensor.

[0005] This utility model is achieved through the following technical solution.

[0006] An ultra-thin range hood includes a smoke collection housing with a window on the front panel, a fan located inside the smoke collection housing, and a temperature sensor disposed inside the smoke collection housing; the bottom plate of the smoke collection housing has a through hole so that the temperature sensor is partially exposed, for detecting the temperature of the pot placed on the stove to provide a judgment condition for adjusting the frequency of the fan; the temperature sensor includes a heat-insulating protective shell and a temperature sensor located inside the heat-insulating protective shell.

[0007] As a further improvement of this utility model, the temperature sensor also includes a heat insulation layer disposed on the heat insulation protective shell for heat insulation of the temperature sensor.

[0008] As a further improvement of this utility model, the bottom plate of the smoke collection shell includes a front part and a rear part. The front part of the bottom plate is obliquely cut from back to front, so that a through hole is provided on the front part of the bottom plate. The rear part of the bottom plate is horizontally arranged and an oil box is installed thereon.

[0009] As a further improvement of this utility model, the front part of the oil box is inclined forward from the bottom edge to the top edge.

[0010] As a further improvement of this utility model, two temperature sensors are provided and are laterally spaced apart, and the two temperature sensors are used to detect the pots on two corresponding stoves.

[0011] As a further improvement of this utility model, both temperature sensors are offset laterally from the corresponding cooktop, and both temperature sensors are offset from the corresponding cooktop in a direction away from the center of the smoke collection housing.

[0012] As a further improvement of this utility model, the temperature sensor also includes a signal processor disposed within the heat insulation protective shell; a power supply box is provided inside the smoke collection shell, and the power supply box is provided with at least a power supply for supplying power to the fan and a main board; the signal processor is used to process the data detected by the temperature sensor and convert it into a signal recognizable by the main board, and the main board is used to drive the fan and adjust the power of the fan through the signal.

[0013] As a further improvement of this utility model, one side of the smoke collection housing is provided with a mounting groove for mounting the power supply box, and the side of the power supply box exposed to the mounting groove is provided with a removable cover.

[0014] As a further improvement of this utility model, the front side of the two sides of the smoke collection shell has an outward convex structure that protrudes outward relative to the rear side, and the rear side has an inward concave structure that is recessed inward relative to the front side. The mounting groove is provided on the inward concave structure of one of the sides. Lighting lamps are provided on the back of both outward convex structures.

[0015] As a further improvement of this utility model, at least one wire clip is provided on the concave structure with the mounting groove for securing the power cord of the power box.

[0016] The beneficial effects of this utility model are:

[0017] By setting through holes in the bottom plate of the smoke collection housing, the temperature sensor is brought closer to the cooktop, shortening the vertical distance between the temperature sensor and the cookware, significantly improving the accuracy of temperature detection. Furthermore, only a portion of the temperature sensor is exposed through the through holes, reducing direct contact between the temperature sensor and the cooktop for heat radiation. On this basis, the temperature sensor is protected by a heat-insulating protective shell to reduce heat conduction, thus insulating the temperature sensor located inside the shell and effectively reducing its operating temperature to ensure its normal performance. Attached Figure Description

[0018] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings to help understand the purpose and advantages of this utility model, wherein:

[0019] Figure 1 This is a structural diagram of an ultra-thin range hood;

[0020] Figure 2 A schematic diagram of the fan inside the smoke collection housing;

[0021] Figure 3 A cross-sectional schematic diagram showing the transmission components of an ultra-thin range hood;

[0022] Figure 4 This is a schematic diagram showing how an ultra-thin range hood switches sequentially from the off state to the on state and then to the adjustment state.

[0023] Figure 5 for Figure 3 A magnified view of a portion of the image;

[0024] Figure 6 This is a schematic diagram of the structure along the horizontal axis;

[0025] Figure 7 This is a schematic diagram of the linkage components;

[0026] Figure 8 A schematic diagram showing the installation of a temperature sensor in an ultra-thin range hood;

[0027] Figure 9 A schematic diagram illustrating the working state of a temperature sensor detecting the temperature of a cookware.

[0028] Figure 10 A cross-sectional view of the temperature sensor and power supply box is shown for an ultra-thin range hood.

[0029] Figure 11 This is a diagram showing the oil box and lighting of an ultra-thin range hood. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0031] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0032] A type of ultra-thin range hood, as shown in the reference Figure 1 , Figure 2 , Figure 3 The range hood includes a smoke collection housing 1 and a fan 2. The front panel 13 of the smoke collection housing 1 has a window 11, and the fan 2 is disposed inside the smoke collection housing 1. The ultra-thin range hood also includes a base plate 31, a smoke baffle 32, and a smoke inlet plate 33. The base plate 31 is laterally rotatable at the top of the window 11, the smoke baffle 32 is disposed at the bottom of the base plate 31, and the smoke inlet plate 33 is laterally rotatable at the bottom of the window 11. A linkage component is provided between the base plate 31 and the smoke inlet plate 33, which movably connects the base plate 31 and the smoke inlet plate 33, allowing them to rotate synchronously. Based on the movable connection between the base plate 31 and the smoke inlet plate 33, the ultra-thin range hood has a closed state and an open state. The ultra-thin range hood also includes a driver 41 and a transmission component. The transmission component drives the driver 41 and the base plate 31. The driver 41 provides driving force and drives the base plate 31 to rotate through the transmission component, and drives the smoke baffle 32 to rotate synchronously, so that the ultra-thin range hood can switch between a closed state and an open state.

[0033] The ultra-thin range hood is in the off state corresponding to the fan 2 being off, and in the on state corresponding to the fan 2 being on. In the off state, the base plate 31, the smoke inlet plate 33, and the smoke baffle 32 are retracted into the window 11, with the smoke baffle 32 blocking the smoke inlet 33a of the smoke inlet plate 33. As the base plate 31 and the smoke inlet plate 33 rotate synchronously, the ultra-thin range hood switches from the off state to the on state. In the on state, the base plate 31 and the smoke inlet plate 33 extend simultaneously towards the front of the window 11, exposing the smoke inlet 33a of the smoke inlet plate 33 to draw in fumes. The smoke baffle 32 is located in front of the smoke inlet 33a, blocking the fumes and guiding them towards the smoke inlet 33a.

[0034] The ultra-thin range hood in this embodiment achieves a dual breakthrough in both spatial form and smoke extraction efficiency through the coordinated operation of the base plate 31 and the smoke inlet plate 33, as well as the cooperation of the smoke baffle plate 32. Specifically, in the closed state, the base plate 31 and the smoke inlet plate 33 are constricted by the linkage components and retracted to the window 11 of the smoke collection housing 1. The smoke baffle plate 32 blocks the smoke inlet 33a of the smoke inlet plate 33, which can prevent the oily smell inside the smoke collection housing 1 from escaping when closed. The retracted posture of the base plate 31, the smoke inlet plate 33, and the smoke baffle plate 32 ensures that the combined plate formed by the three does not bulge forward, thus maintaining the ultra-thin form of the ultra-thin range hood. When the ultra-thin range hood switches to the working state, the base plate 31 and the smoke baffle 32 unfold upward and downward on the front side of the window 11, respectively. This dynamic unfolding process causes the smoke inlet 33a to move forward as a whole, significantly shortening the front-to-back distance between the smoke inlet 33a and the stove and pots, and directly expanding the range of the negative pressure capture area. At the same time, the smoke baffle 32 extends forward synchronously with the rotation of the base plate 31, and its position precisely covers the front side of the smoke inlet 33a, forming a physical barrier surface. On the one hand, it directly intercepts the outward diffusion of oil fume airflow, and on the other hand, it guides the intercepted oil fume to the smoke inlet 33a, forming a synergistic flow-guiding effect with the negative pressure generated by the fan 2, reducing the probability of oil fume escaping during the upward process, and improving the oil fume extraction efficiency of the ultra-thin range hood. In addition, in the open state, the base plate 31, the smoke inlet 33, and the front plate 13 of the smoke collection shell 1 present a triangular support structure, which has good mechanical structural strength to maintain the stability of the ultra-thin range hood in the open state.

[0035] In this implementation case, refer to Figure 3At least one rotating connection component 5 is provided inside the smoke collection housing 1 at the top. The rotating connection component 5 is movably connected to the base plate 31 to allow the base plate 31 to rotate. Typically, there are two rotating connection components 5, symmetrically arranged about the left and right sides of the smoke collection housing 1. The rotating connection component 5 limits the maximum rotation angle of the base plate 31, and the base plate 31 rotates to the maximum rotation angle, corresponding to the open state of the ultra-thin range hood. The rotating connection component 5 serves as a mechanical limiting reference for the rotation of the base plate 31. Through rigid connection and angular constraint, it ensures that the base plate 31 accurately corresponds to the fully open state of the ultra-thin range hood at the maximum rotation angle, avoiding structural deformation and other problems caused by over-travel. Furthermore, by using the rotating connection component 5 as a fixed fulcrum at the maximum rotation angle of the base plate 31, the structural stability of the base plate 31 is improved, so that the geometric shape of the triangular support structure of the ultra-thin range hood remains constant when the component is in the open state. The smoke baffle 32 is laterally rotatable at the bottom of the substrate 31. The transmission assembly not only drives the driver 41 and the substrate 31, but also drives the smoke baffle 32, allowing the smoke baffle 32 to rotate around the bottom of the substrate 31. This expands the range of the smoke baffle 32 in blocking oil fumes, thereby directly increasing the interception depth of the oil fume diffusion path and enhancing the performance of preventing oil fume escape. In addition, the driver 41, as a single power source, is driven by the transmission assembly to simultaneously control the coordinated action of the substrate 31, the smoke inlet plate 33, and the smoke baffle 32, improving the overall integration and efficiency.

[0036] In this implementation case, refer to Figure 3 The transmission assembly includes a drive link 42 rotatably connected to the driver 41, a main transmission link 43 rotatably connected to the base plate 31, a secondary transmission link 44 rotatably connected to the smoke baffle 32, and an elastic member 45 connecting the main transmission link 43 and the base plate 31. The driver 41 is configured for linear drive, and more specifically, the driver 41 is equipped with a vertically extending push rod 411, which is rotatably connected to the drive link 42. The ends of the drive link 42 and the main transmission link 43 are rotatably connected, and the end of the secondary transmission link 44 is rotatably connected to the rod body of the main transmission link 43.

[0037] The transmission component in this embodiment allows the base plate 31 and the smoke baffle 32 to remain relatively stationary during the transition of the ultra-thin range hood from the closed state to the open state. Furthermore, the ultra-thin range hood has an adjustment state where the smoke baffle 32 rotates around the bottom of the base plate 31 when it reaches the open state and the driver 41 continues to drive. The process of the ultra-thin range hood transitioning from the closed state to the open state and then to the adjustment state is as follows:

[0038] Reference Figure 4 and combined Figure 3When the ultra-thin range hood is closed, the base plate 31 and the smoke baffle 32 are retracted into the window 11 of the smoke collection housing 1, with the smoke baffle 32 tightly against the smoke inlet 33a, and the elastic element 45 in a naturally extended state. The driver 41 activates, causing the push rod 411 to move vertically downwards, driving the drive linkage 42 to rotate around its rotational connection point on the push rod 411. This causes the rotational connection point between the drive linkage 42 and the main transmission linkage 43 to be stressed. The elastic element 45 remains rigidly connected because there is no relative rotation between the main transmission linkage 43 and the base plate 31. The base plate 31 is pulled upwards by the main transmission linkage 43 around the rotational connection assembly 5. The smoke baffle 32 rotates synchronously with the base plate 31 through the linkage assembly. The auxiliary transmission linkage 44 is in a free-moving state because there is no relative rotation between the main transmission linkage 43 and the base plate 31, keeping the smoke baffle 32 and the base plate 31 relatively stationary. When the base plate 31 rotates to the maximum angle defined by the rotating connection assembly 5, the base plate 31, the smoke inlet plate 33, and the front plate 13 of the smoke collection housing 1 form a triangular support structure, and the range hood switches to the on state. At this time, the elastic element 45 is still not compressed, and the smoke baffle 32 still maintains its posture relative to the base plate 31. In the on state, the driver 41 continues to drive, that is, the driver 41 continues to drive the push rod 411 to move vertically downward. Due to the limitation of the maximum rotation angle of the base plate 31 by the rotating connection assembly 5, it is basically impossible to continue rotating. Therefore, the main drive link 43 and the base plate 31 rotate relative to each other. The force of the drive link 42 pushing the main drive link 43 exceeds the preload of the elastic element 45, and the elastic element 45 is gradually stretched or compressed. As in this embodiment, the position of the connection of the elastic element 45 makes the elastic element 45 gradually stretched during this process. The rotation of the main drive link 43 relative to the base plate 31 forces the auxiliary drive link 44 to rotate relative to the main drive link 43, and exerts a traction effect on the smoke baffle 32. Under the traction of the auxiliary drive link 44, the smoke baffle 32 rotates independently around the bottom of the base plate 31, and its posture gradually becomes horizontal, so that the range of the smoke baffle 32 blocking the oil fumes gradually expands. Therefore, the ultra-thin range hood enters the adjustment state from the on state.

[0039] In this embodiment, the transmission component, through the cooperation of the elastic element 45 with the main transmission link 43 and the auxiliary transmission link 44, decomposes the single linear driving force into two sequential stages: the main rotation of the base plate 31 and the adjustment rotation of the smoke baffle 32. In the on state of the ultra-thin range hood, priority is given to ensuring the rapid formation of the triangular support structure, while in the adjustment state, the coverage area of ​​the smoke baffle 32 is precisely expanded, avoiding mutual interference between the two stages of movement. The linear drive of the driver 41 and the multi-link cooperation of the transmission component utilize the deformation threshold of the elastic element 45 to achieve automatic switching of the motion mode. Compared with the requirements of electronic sensors and program control, this purely mechanical linkage structure obviously reduces system complexity and failure risk. After the triangular support structure is locked in the on state of the ultra-thin range hood, the independent rotation of the smoke baffle 32 can adjust the range of smoke blocking in front and behind it according to different smoke intensities, making the ultra-thin range hood of this embodiment more adaptable to different cooking methods.

[0040] In this embodiment, during the transition from the closed to the open state of the ultra-thin range hood, the base plate 31 and the smoke baffle 32 remain flush with each other. Furthermore, when the ultra-thin range hood is closed, the base plate 31 and the smoke baffle 32 are vertical and completely cover the front panel 13 and the smoke inlet plate 33. The base plate 31 and the smoke baffle 32 create a seamless closed plane on the front of the ultra-thin range hood when closed, completely eliminating the seams common in traditional folding structures. This prevents dust from entering the internal fan 2 through gaps and enhances the overall aesthetics of the ultra-thin range hood through a visually integrated design.

[0041] In this implementation case, refer to Figure 5 and combined Figure 3The rotating connection assembly 5 includes a first open-chain multi-link 51, a second open-chain multi-link 52, a limiting slider 53, and a limiting link 54. Each of the first open-chain multi-link 51 and the second open-chain multi-link 52 includes at least two sequentially connected links r. The links of the first open-chain multi-link 51 and the second link structure are rotatably connected to each other. Both ends of the first open-chain multi-link 51 and the second open-chain multi-link 52 are rotatably connected to the inner top of the smoke collection housing 1 and the inner surface of the substrate 31, respectively. The rotating connection ends 51a and 52a of the first open-chain multi-link 51 and the second open-chain multi-link 52 on the smoke collection housing 1 are spaced apart and on the substrate 31. Rotary connecting ends 51b and 52b are longitudinally spaced; the limiting slider 53 is slidably connected to the smoke collection housing 1, and the limiting slider 53 has a maximum forward sliding stroke. More specifically, the inner top of the smoke collection housing 1 is provided with a limiting slide rail 55 extending in the front-back direction, the limiting slider 53 is slidably connected to the limiting slide rail 55, and the limiting slide rail 55 is provided with a stop end that abuts against the limiting slider 53 to limit the maximum forward sliding stroke of the limiting slider 53 to correspond to the maximum rotation angle of the substrate 31. The first open-chain multi-link 51 and the second open-chain multi-link 52 are respectively connected to the smoke collection shell 1 in a front-to-back direction and connected to the inner surface of the substrate 31 in a longitudinally spaced manner, forming a dynamic support system with two fulcrums. When the substrate 31 rotates, the rods of the first open-chain multi-link 51 and the second open-chain multi-link 52 compensate for the displacement difference through relative rotation, so that the substrate 31 has a unique rotation trajectory during the unfolding process. Furthermore, the dual-fulcrum system constructed by the first open-chain multi-link 51 and the second open-chain multi-link 52 improves the stability of the substrate 31 during rotation and avoids situations such as shaking and tilting. The limiting slider 53 is linearly related to the forward stroke of the slider and the rotation angle of the substrate 31. During the process of switching from the closed state to the open state, the degrees of freedom of the first open chain multi-link 51 and the second open chain multi-link 52 allow the substrate 31 to rotate and unfold smoothly. When the substrate 31 approaches the maximum rotation angle, the limiting slider 53 reaches the maximum stroke to forcibly cut off the continued deformation of the first open chain multi-link 51 and the second open chain multi-link 52, so that the substrate 31 stops precisely at the preset angle, improving the accuracy of operation.

[0042] In this embodiment, the rotary connection assembly 5 also includes an elastic reset member 56, which is configured as a compression spring and acts on the limiting slider 53 to drive the limiting slider 53 to slide towards its maximum stroke. The introduction of the elastic reset member 56 enhances the self-resetting capability and motion stability of the rotary connection assembly 5. The elastic reset member 56 acts on the limiting slider 53, continuously applying an elastic force in the direction of the maximum stroke, so that the substrate 31 automatically maintains its opening angle lock when not in operation, preventing accidental retraction due to vibration or gravity. When the driver 41 drives the substrate 31 to rotate, the preload of the compression spring is in the same direction as the driving direction, helping to counteract the frictional resistance of the multi-link mechanism composed of the first open-chain multi-link 51 and the second open-chain multi-link 52, reducing driving energy consumption, and making the rotation of the substrate 31 smoother.

[0043] In this implementation case, refer to Figure 6 and combined Figure 3 For the rotatable connection between the smoke baffle 32 and the base plate 31, the bottom of the base plate 31 has a horizontally arranged transverse shaft 311, on which at least one base plate connecting piece 312 is fixedly connected. The top of the smoke baffle 32 has at least one bushing 321, which is rotatably sleeved on the transverse shaft 311. Regarding the specific arrangement of the bushing 321 and the smoke baffle 32, the bushing 321 has a smoke baffle connecting piece 322 fixedly connected to it. The bushing 321 also has a transmission arm 323, which is rotatably connected to the transmission assembly, i.e., the secondary transmission connecting rod 44. Through the integrated arrangement of the transverse shaft 311 and the bushing 321, the rotational adjustment of the smoke baffle 32 in the adjusted state has good stability.

[0044] In this implementation case, refer to Figure 7 and combined Figure 3 The linkage assembly includes a linkage slide rail 313, a substrate linkage bracket 314, and a smoke inlet plate linkage bracket 331. The linkage slide rail 313 is longitudinally disposed on the inner surface of the substrate 31. The substrate linkage bracket 314 is slidably connected to the linkage slide rail 313, allowing it to slide longitudinally. The smoke inlet plate linkage bracket 331 is disposed on the smoke inlet plate 33 and is rotatably connected to the substrate linkage bracket 314. At least one linkage assembly is provided, and usually two are provided and symmetrically arranged on the left and right sides, which can improve the smoothness and stability of the synchronous rotation of the smoke inlet plate 33. Furthermore, a connecting seat 12 corresponding to the smoke inlet plate linkage bracket 331 is provided at the inner bottom of the smoke collection housing 1. The smoke inlet plate linkage bracket 331 extends longitudinally and is disposed on the inner surface of the smoke inlet plate 33. Its top end is rotatably connected to the substrate linkage bracket 314, and its bottom end is rotatably connected to the connecting seat 12, so as to realize the synchronous rotation of the smoke inlet plate 33 with the substrate 31.

[0045] In this implementation case, refer to Figure 1The base plate 31 and the smoke baffle 32 are respectively provided with an upper wing plate 31a and a lower wing plate 32a that retract inwards to the rear. These are used to keep the gap between the base plate 31, the smoke baffle 32, and the sides of the window 11 closed during the process of switching the ultra-thin range hood from the closed state to the open state. In this embodiment, the inward setting of the upper wing plate 31a and the lower wing plate 32a achieves dynamic sealing between the base plate 31 and the smoke baffle 32 throughout the entire movement. When the ultra-thin range hood is closed, the upper wing plate 31a and the lower wing plate 32a are completely embedded in the sides of the window 11, eliminating lateral gaps. During the opening process, the upper wing plate 31a and the lower wing plate 32a rotate synchronously with the base plate 31 and the smoke baffle 32, always sliding against the sides of the window 11 to form a continuous closed interface, blocking the path of oil fumes escaping from the sides.

[0046] The ultra-thin range hood in this implementation case is based on... Figure 8 , Figure 9 , Figure 10 A temperature sensor 6 is provided, which is used to detect the temperature of the pot placed on the stove to provide a judgment condition for adjusting the frequency of the fan 2. The temperature sensor 6 is set inside the smoke collection housing 1, and the bottom plate 14 of the smoke collection housing 1 has a through hole h to expose part of the temperature sensor 6 so that the actuator can detect the temperature. The temperature sensor 6 includes a heat insulation protective shell 61 and a temperature sensor 62, which is set inside the heat insulation protective shell 61.

[0047] In the ultra-thin range hood of this embodiment, by setting a through hole h on the bottom plate 14 of the smoke collection housing 1, the temperature sensor 6 is brought closer to the cooktop, which shortens the vertical distance between the temperature sensor 62 and the cooktop, significantly improving the accuracy of temperature detection. Furthermore, only a part of the temperature sensor 6 is exposed through the through hole h, reducing direct contact between the temperature sensor 6 and the cooktop for heat radiation. On this basis, the temperature sensor 6 is equipped with a heat insulation protective shell 61 to weaken heat conduction, which serves to insulate the temperature sensor 62 located inside the heat insulation protective shell 61, thereby effectively reducing the operating temperature of the temperature sensor 62 and ensuring that its performance is in normal condition.

[0048] In this implementation, when the stove starts working, the temperature of the pot placed on it gradually rises. For example, when the temperature t1 detected by the temperature sensor 6 is ≥ 50℃, the fan 2 starts to extract the fumes. When the detected temperature t2 is ≥ 240℃, the fan 2's power is increased to the high setting, increasing the airflow to accelerate the removal of fumes and improve the air quality in the kitchen for a better experience. When the detected temperature t2 is ≥ 300℃, dry burning is detected. At this point, the gas switch of the stove is automatically turned off through the stove-range hood linkage program, and the fan 2's power is increased again to accelerate the removal of odorous air. After a period of time, its speed is reduced to reduce noise. Furthermore, the detected temperature and the corresponding fan 2 power settings are not limited to the above three settings, and the temperature is reasonably set according to the actual configuration of the ultra-thin range hood, and is not limited to 50℃, 240℃, and 300℃.

[0049] In this embodiment, the temperature sensor 62 is set as an infrared temperature sensor 62, which has the advantages of high temperature resolution, fast response speed, high measurement accuracy and good stability.

[0050] In this embodiment, the temperature sensor 6 also includes a heat insulation layer disposed on the heat-insulating protective shell 61 for heat insulation of the temperature sensor 62. By setting the heat insulation layer, the temperature sensor 6 enhances the high-temperature resistance of the temperature sensor 62 while ensuring temperature sensing accuracy, thereby further reducing the operating temperature of the temperature sensor 62. The heat insulation layer can be specifically set as an aerogel composite layer, a heat insulation cotton layer, a graphene gas felt layer, etc., all of which have good heat insulation effects.

[0051] In this implementation case, refer to Figure 10 The base plate 14 of the smoke collection housing 1 includes a front portion 141 and a rear portion 142. The front portion 141 is obliquely cut upwards from back to front, and a through hole h is provided on the front portion 141. The rear portion 142 is horizontally positioned and has an oil box 15 installed on it. Due to the ultra-thin shape of the ultra-thin range hood, the temperature sensor 6 is positioned relatively far back relative to the cooktop. By tilting the front portion 141, the detection angle of the temperature sensor 6 is correspondingly tilted, rather than vertically downwards, so that it is aligned with the cooktop. This optimizes the spatial path for heat signal capture and improves the accuracy of detection.

[0052] In this embodiment, the front of the oil box 15 is inclined from the bottom edge to the top edge, so that the smoke collection housing 1 extends from the front of the bottom plate 141 to the front of the oil box 15 in an inclined shape, thereby improving the overall aesthetics of the ultra-thin range hood.

[0053] In this implementation, two temperature sensors 6 are arranged laterally, with each sensor 6 used to detect the pots on two corresponding stovetops. This independent lateral arrangement of the two temperature sensors 6 enables precise zonal detection and targeted response for dual-stove operation. The two temperature sensors 6 are positioned directly over the core heating areas of the pots on the left and right stovetops, allowing them to operate independently and improving the accuracy of temperature detection.

[0054] In this embodiment, both temperature sensors 6 are laterally offset from their corresponding cooktops, and both temperature sensors 6 are offset away from the center of the smoke collection housing 1. This lateral outward offset design of the dual temperature sensors 6 balances detection accuracy with anti-interference requirements. Specifically, since the fumes are mainly concentrated in the central area and drawn into the smoke inlet 33a, the temperature sensors 6 are located away from the main smoke extraction channel, reducing direct adhesion of oil mist and impact from high-temperature airflow, thus lowering the operating temperature and improving the durability of the temperature sensor 62. Secondly, it minimizes the interference of smoke turbulence.

[0055] In this implementation case, refer to Figure 10 as well as Figure 11 The temperature sensor 6 also includes a signal processor 63 housed within the heat-insulating protective housing 61. A power supply box 7 is located within the smoke collection housing 1, containing a power supply for the fan 2 and the driver 41, as well as a mainboard 71. The signal processor 63 processes the data detected by the temperature sensor 62 and converts it into signals recognizable by the mainboard 71. The mainboard 71 uses these signals to drive the fan 2 and adjust its power.

[0056] In this implementation case, refer to Figure 11 The smoke collection housing 1 has a mounting groove 1c on one side for mounting the power supply box 7, and the power supply box 7 has a removable cover 7a on the side exposed to the mounting groove 1c. The main board 71 and the power supply are encapsulated together in the side power supply box 7, forming an independent maintenance unit through the removable cover 7a. During maintenance, the power supply or main board 71 can be quickly replaced without disassembling the entire machine.

[0057] In this implementation case, refer to Figure 11The smoke collection housing 1 has two sides, one on the front with an outwardly protruding structure 1a relative to the rear, and the other on the rear with an inwardly recessed structure 1b relative to the front. A mounting groove 1c is provided on the inwardly recessed structure 1b of one side. Lights 16 are provided on the back of both outwardly protruding structures 1a. When the cover 7a is removed, the back lights 16 of the outwardly protruding structures 1a project light directly onto the mounting groove 1c in the inwardly recessed area, creating a localized shadowless lighting environment. This allows for clear identification of the internal components of the power box 7 without the need for hand tools, reducing the risk of misoperation. Simultaneously, since the lights 16 are located on the back of the protruding structures, they can also function as ambient lights when turned on, combining practicality and visual aesthetics.

[0058] In this embodiment, at least one cable clip 1d is provided on the recessed structure 1b with the mounting groove 1c to secure the power cord 72 of the power box 7. The cable clip 1d fixes the power cord's routing, preventing loose and tangled wires, and improving neatness and wiring safety.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention 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 of the technical features. 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 the present invention.

Claims

1. An ultra-thin range hood, characterized in that, The device includes a smoke collection housing (1) with a window (11) on the front panel (13), a fan (2) located inside the smoke collection housing (1), and a temperature sensor (6) installed inside the smoke collection housing (1). The bottom plate (14) of the smoke collection housing (1) has a through hole (h) to expose part of the temperature sensor (6), which is used to detect the temperature of the pot placed on the stove to provide a judgment condition for adjusting the frequency of the fan (2). The temperature sensor (6) includes a heat insulation protective shell (61) and a temperature sensor (62) located inside the heat insulation protective shell (61).

2. The ultra-thin range hood according to claim 1, characterized in that, The temperature sensor (6) also includes a heat insulation layer disposed on the heat insulation protective shell (61) for heat insulation of the temperature sensor (62).

3. The ultra-thin range hood according to claim 1, characterized in that, The bottom plate (14) of the smoke collection housing (1) includes a front part (141) and a rear part (142). The front part (141) is obliquely cut from back to front. The through hole (h) is provided on the front part (141). The rear part (142) is horizontally arranged and an oil box (15) is installed.

4. The ultra-thin range hood according to claim 3, characterized in that, The front part of the oil box (15) is inclined forward from the bottom edge to the top edge.

5. The ultra-thin range hood according to claim 1, characterized in that, Two temperature sensors (6) are provided and are spaced laterally apart. The two temperature sensors (6) are used to detect the pots on the two corresponding stoves.

6. The ultra-thin range hood according to claim 5, characterized in that, Both of the temperature sensors (6) are laterally offset from the corresponding cooktop, and both of the temperature sensors (6) are offset from the corresponding cooktop in a direction away from the center of the smoke collection housing (1).

7. The ultra-thin range hood according to any one of claims 1-6, characterized in that, The temperature sensor (6) also includes a signal processor (63) disposed in the heat insulation protective shell (61); the smoke collection shell (1) is provided with a power supply box (7), which is provided with at least a power supply for the fan (2) and a main board (71); the signal processor (63) is used to process the data detected by the temperature sensor (62) and convert it into a signal that can be recognized by the main board (71), and the main board (71) is used to drive the fan (2) and adjust the power of the fan (2) through the signal.

8. The ultra-thin range hood according to claim 7, characterized in that, The smoke collection housing (1) has a mounting groove (1c) on one side for mounting the power supply box (7), and the power supply box (7) has a removable cover (7a) on the side exposed to the mounting groove (1c).

9. The ultra-thin range hood according to claim 8, characterized in that, The smoke collection housing (1) has an outwardly protruding structure (1a) on the front side of its two sides that protrudes outward relative to the rear side, and an inwardly recessed structure (1b) on the rear side that is recessed inward relative to the front side. The mounting groove (1c) is provided on the inwardly recessed structure (1b) of one of the sides. A lighting lamp (16) is provided on the back of both outwardly protruding structures (1a).

10. The ultra-thin range hood according to claim 8, characterized in that, At least one wire clip (1d) is provided on the recessed structure (1b) with the mounting groove (1c) for securing the power cord (72) of the power box (7).

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