Ultra-thin range hood

Abstract

The present invention discloses an ultra-thin range hood, comprising a smoke collecting housing with a window on its front panel, a fan located in the smoke collecting housing; a base plate arranged transversely and rotatably at the top of the window, a smoke baffle arranged at the bottom of the base plate, and a smoke inlet plate arranged transversely and rotatably at the bottom of the window and having a smoke inlet; the base plate and the smoke inlet plate are movably connected by a linkage assembly so that the two can rotate synchronously, the ultra-thin range hood having a closed state in which the base plate, the smoke inlet plate, and the smoke baffle are simultaneously retracted into the window, and an open state in which the base plate, the smoke inlet plate, and the smoke baffle are simultaneously extended toward the front of the window; in the closed state, the smoke baffle blocks the smoke inlet; in the open state, the smoke baffle is located in front of the smoke inlet to block oil smoke and guide it toward the smoke inlet; and a drive and a transmission assembly connecting the drive and the base plate, the drive being used to drive the base plate to rotate via the transmission assembly. The beneficial effect of the present invention is that it can effectively expand the smoking range in the working state, thereby improving the smoking efficiency.

Description

Technical Field

[0001] The invention relates to an ultra-thin range hood, belonging to the technical field of kitchen appliances. Background Art

[0002] Ultra-thin range hoods are modern kitchen appliances characterized by their slim body, efficient suction and exhaust, and stylish design, making them suitable for consumers who pursue both aesthetics and functionality.

[0003] In the prior art, due to the ultra-thin shape of the ultra-thin range hood body, the smoke inlet of the ultra-thin range hood is relatively far back in space relative to the stove. Even if the ultra-thin range hood uses structures such as smoke baffles to block the smoke, it still cannot completely solve the inherent defect of the smoke inlet being relatively far back, making it easy for the ultra-thin range hood to escape when absorbing smoke. Summary of the Invention

[0004] The purpose of the present invention is to provide an ultra-thin range hood that can effectively expand the smoking range in a working state, thereby improving the smoking efficiency.

[0005] The present invention is achieved through the following technical solutions.

[0006] An ultra-thin range hood comprises a smoke collecting housing with a window on the front panel and a fan located in the smoke collecting housing;

[0007] and a base plate arranged at the top of the window, a smoke shield arranged at the bottom of the base plate, and a smoke inlet plate arranged at the bottom of the window and having a smoke inlet, which are rotatably arranged laterally. The base plate and the smoke inlet plate are movably connected by a linkage assembly so that the two can rotate synchronously. The ultra-thin range hood has a closed state in which the base plate, the smoke inlet plate, and the smoke shield are simultaneously retracted into the window, and an open state in which the base plate, the smoke inlet plate, and the smoke shield are simultaneously extended toward the front side of the window. In the closed state, the smoke shield blocks the smoke inlet. In the open state, the smoke shield is located in front of the smoke inlet to block the oil smoke and guide it to the smoke inlet.

[0008] And, a driver and a transmission assembly connecting the driver and the substrate, wherein the driver is used to drive the substrate to rotate through the transmission assembly.

[0009] As a further improvement of the present invention, the smoke collecting shell is provided with a rotating connection component movably connected to at least one of the base plates, the rotating connection component limits the maximum rotation angle of the base plate, and the maximum rotation angle corresponds to the open state of the ultra-thin range hood; the smoke baffle is laterally rotated and arranged at the bottom of the base plate, and the transmission component is also transmission-connected to the smoke baffle, so that the smoke baffle can rotate around the bottom of the base plate to expand the front and rear range of the smoke baffle blocking the oil smoke.

[0010] As a further improvement of the present invention, the transmission assembly includes a driving link rotatably connected to the driver, a main transmission link rotatably connected to the base plate, a secondary transmission link rotatably connected to the smoke damper, and an elastic member connecting the main transmission link and the base plate; the driver is configured for linear drive, the ends of the driving link and the main transmission link are rotatably connected, and the end of the secondary transmission link is rotatably connected to the rod body of the main transmission link, so that the base plate and the smoke damper are relatively stationary during the transition of the ultra-thin range hood from a closed state to an open state, and the ultra-thin range hood has an adjustment state in which the smoke damper rotates around the bottom of the base plate when it reaches the open state and the driver continues to drive.

[0011] As a further improvement of the present invention, when the ultra-thin range hood is switched from a closed state to an open state, the base plate and the smoke shield remain flush with each other; when the ultra-thin range hood is in a closed state, the base plate and the smoke shield are in a vertical state and cover the front panel and the smoke inlet plate of the ultra-thin range hood.

[0012] As a further improvement of the present invention, the rotating connection assembly includes a first open-chain multi-link and a second open-chain multi-link, a limit slider connected to the smoke collecting shell for sliding back and forth, and a limit link that rotationally connects the limit slider and the rod body of the first open-chain multi-link or the second open-chain multi-link; the rod bodies of the first open-chain multi-link and the second open-chain multi-link are rotationally connected to each other, and both ends of the first open-chain multi-link and the second open-chain multi-link are rotationally connected to the smoke collecting shell and the substrate respectively, and the rotating connection ends of the first open-chain multi-link and the second open-chain multi-link on the smoke collecting shell are spaced front to back, and the rotating connection ends on the substrate are spaced longitudinally; the limit slider has a maximum forward sliding stroke to correspond to the maximum rotation angle of the substrate.

[0013] As a further improvement of the present invention, the rotating connection assembly further includes an elastic reset, and the elastic reset member acts on the limit slider to drive the limit slider to slide toward the maximum stroke.

[0014] As a further improvement of the present invention, the bottom of the base plate has a transversely arranged horizontal axis, the top of the smoke shield has at least one shaft sleeve rotatably sleeved on the transverse axis, and the shaft sleeve has a transmission arm rotatably connected to the transmission assembly.

[0015] As a further improvement of the present invention, the linkage assembly includes a linkage slide rail longitudinally arranged on the inner surface of the base plate, a base plate linkage bracket slidably connected to the linkage slide rail, and a smoke inlet plate linkage bracket arranged on the smoke inlet plate, and the base plate linkage bracket and the smoke inlet plate linkage bracket are rotatably connected.

[0016] As a further improvement of the present invention, upper wing panels and lower wing panels that are retracted inward toward the rear are respectively provided on both sides of the substrate and the smoke baffle, which are used to always close the gap between the substrate and the smoke baffle and the two sides of the window during the process of switching the ultra-thin range hood from a closed state to an open state.

[0017] As a further improvement of the present invention, the smoke collecting housing is provided with at least one temperature sensor for detecting the temperature of a pot placed on the cooker.

[0018] Beneficial effects of the present invention:

[0019] The smoke shield is a kind of ultra-thin range hood that is convenient to operate and can be used for cooking oil, oil and gas, and has a large application prospect.

[0020] Through the coordination of the elastic part with the main transmission connecting rod and the auxiliary transmission connecting rod, the single linear driving force is decomposed into two sequential stages: the main rotation of the base plate and the adjustment rotation of the smoke damper. When the ultra-thin range hood is in the on state, the rapid prototyping of the triangular support structure is prioritized, while in the adjustment state, the coverage range of the smoke damper is finely expanded to avoid mutual interference between the two stages of movement; the linear drive of the driver and the multi-link coordination setting of the transmission assembly utilizes the deformation threshold of the elastic part to realize automatic switching of the motion mode, reducing the system complexity and failure risk; after the triangular support structure of the ultra-thin range hood is locked in the on state, the smoke damper rotates independently, making the ultra-thin range hood better adaptable to different cooking methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to help understand the objects and advantages of the present invention, wherein:

[0022] Figure 1 This is a structural diagram of an ultra-thin range hood;

[0023] Figure 2 is a schematic diagram of a fan in a smoke collecting housing;

[0024] Figure 3A cross-sectional diagram showing the transmission assembly of an ultra-thin range hood;

[0025] Figure 4 It is a schematic diagram of the ultra-thin range hood switching from the off state to the on state and the adjustment state in sequence;

[0026] Figure 5 for Figure 3 A partial enlarged schematic diagram;

[0027] Figure 6 is a structural diagram of the horizontal axis;

[0028] Figure 7 is a schematic diagram of the linkage components;

[0029] Figure 8 Schematic diagram of setting a temperature sensor for an ultra-thin range hood;

[0030] Figure 9 This is a schematic diagram of the working state of the temperature sensor detecting the temperature of the pot;

[0031] Figure 10 A cross-sectional diagram showing the temperature sensor and power supply box of the ultra-thin range hood;

[0032] Figure 11 A schematic diagram showing the oil box and lighting of an ultra-thin range hood. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and implementation examples.

[0034] In this specification, directional terms such as up, down, left, right, front, back, front, back, top, and bottom, which are mentioned or may be mentioned, are defined relative to the configurations shown in the accompanying drawings. The terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may vary depending on the location and usage of the component. Therefore, these or other directional terms should not be construed as restrictive.

[0035] An ultra-thin range hood, referring to Figure 1 、 Figure 2 、 Figure 3, including a smoke collecting shell 1 and a fan 2, wherein the front panel 13 of the smoke collecting shell 1 has a window 11, and the fan 2 is arranged in the smoke collecting shell 1. The ultra-thin range hood also includes a base plate 31, a smoke baffle 32 and a smoke inlet plate 33, wherein the base plate 31 is arranged to rotate horizontally at the top of the window 11, the smoke baffle 32 is arranged at the bottom of the base plate 31, and the smoke inlet plate 33 is arranged to rotate horizontally at the bottom of the window 11, and a linkage component is provided between the base plate 31 and the smoke inlet plate 33, and the linkage component movably connects the base plate 31 and the smoke inlet plate 33 so that the two can 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, wherein the transmission component is connected to the driver 41 and the base plate 31, and the driver 41 is used to provide driving force and drive the base plate 31 to rotate through the transmission component, and drive the smoke baffle 32 to rotate synchronously, so that the ultra-thin range hood can switch between the closed state and the open state.

[0036] The closed state of the ultra-thin range hood corresponds to the shutdown of the fan 2, and the open state corresponds to the startup of the fan 2. When the ultra-thin range hood is in the closed state, the base plate 31, the smoke inlet plate 33, and the smoke baffle 32 are retracted into the window 11, and the smoke baffle 32 blocks the smoke inlet port 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 closed state to the open state. When the ultra-thin range hood is in the open state, the base plate 31 and the smoke inlet plate 33 simultaneously extend toward the front side of the window 11, so that the smoke inlet port 33a of the smoke inlet plate 33 is exposed and can inhale oil smoke. The smoke baffle 32 is located in front of the smoke inlet port 33a, and is used to block the oil smoke and guide it to the smoke inlet port 33a.

[0037] The ultra-thin range hood of this embodiment achieves a double breakthrough in both spatial form and oil fume extraction efficiency through the coordinated collaboration of the base plate 31 and smoke inlet plate 33, as well as the cooperation of the smoke baffle 32. Specifically, when closed, the base plate 31 and smoke inlet plate 33 are restrained by the linkage assembly within the window 11 of the smoke collection housing 1, and the smoke baffle 32 blocks the smoke inlet port 33a of the smoke inlet plate 33, thereby preventing the escape of oily odors within the smoke collection housing 1 when closed. The stowed position of the base plate 31, smoke inlet plate 33, and smoke baffle 32 prevents the combined panel from bulging forward, thus maintaining the ultra-thin form of the ultra-thin range hood. When the ultra-thin range hood is switched to the working state, the base plate 31 and the smoke baffle 32 are respectively expanded to the upper and lower front sides of the window 11. This dynamic expansion 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, 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-diffused oil smoke airflow, and on the other hand, it guides the intercepted oil smoke to flow toward the smoke inlet 33a, forming a synergistic drainage effect with the negative pressure generated by the fan 2, reducing the probability of oil smoke escaping during the rising process, and improving the oil smoke suction efficiency of the ultra-thin range hood. In addition, in the open state, the base plate 31, the smoke inlet plate 33 and the front plate 13 of the smoke collecting shell 1 present a triangular support structure with good mechanical structural strength to maintain the stability of the ultra-thin range hood in the open state.

[0038] In this implementation case, refer to Figure 3At least one rotating connection component 5 is provided at the top corresponding to the interior of the smoke collecting shell 1. The rotating connection component 5 and the base plate 31 are movably connected to allow the base plate 31 to rotate. Usually, there are two rotating connection components 5, and they are symmetrically arranged about the left and right sides of the smoke collecting shell 1. The rotating connection component 5 limits the maximum rotation angle of the base plate 31, and when the base plate 31 rotates to the maximum rotation angle, it corresponds to the open state of the ultra-thin range hood. The rotating connection component 5 serves as a mechanical limit reference for the rotation of the base plate 31. Through rigid connection and angle 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 problems such as structural deformation caused by rotation overtravel, and 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 component of the ultra-thin range hood remains constant when the ultra-thin range hood is in the open state. As for the smoke baffle 32, the smoke baffle 32 is arranged to rotate horizontally at the bottom of the base plate 31. In addition to the transmission connection between the driver 41 and the base plate 31, the transmission component also transmits and connects the smoke baffle 32, so that the smoke baffle 32 can rotate around the bottom of the base plate 31, thereby expanding the front and rear range of the smoke baffle 32 to block the oil smoke, thereby directly expanding the interception depth of the oil smoke diffusion path to enhance the performance of preventing the oil smoke from escaping; in addition, through the single power source of the driver 41 and the transmission component, the coordinated action of the three components of the base plate 31, the smoke inlet plate 33 and the smoke baffle 32 is simultaneously controlled, which improves the overall integration and efficiency.

[0039] In this implementation case, refer to Figure 3 The transmission assembly includes a drive link 42 rotatably connected to a driver 41, a main transmission link 43 rotatably connected to a base plate 31, a secondary transmission link 44 rotatably connected to a smoke shield 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. More specifically, the driver 41 is equipped with a vertically extending push rod 411 rotatably connected to the drive link 42. The drive link 42 and the main transmission link 43 are rotatably connected at their ends. The secondary transmission link 44 is rotatably connected to the main transmission link 43 at its end.

[0040] The transmission assembly of this embodiment allows the base plate 31 and the smoke shield 32 to remain relatively stationary during the transition of the ultra-thin range hood from the closed state to the open state. Furthermore, when the ultra-thin range hood reaches the open state and the driver 41 continues to drive, the smoke shield 32 can be adjusted to rotate around the bottom of the base plate 31. The process of the ultra-thin range hood transitioning from the closed state to the open state and then to the adjusted state is as follows:

[0041] Reference Figure 4 Combined with Figure 3When the ultra-thin range hood is closed, the base plate 31 and smoke damper 32 are retracted within the window 11 of the smoke collection housing 1, with the smoke damper 32 abutting the smoke inlet 33a. The elastic member 45 is in a naturally extended state. The driver 41 is activated, driving the push rod 411 downward, causing the drive link 42 to rotate about its pivot point on the push rod 411. This forces the pivot point between the drive link 42 and the main transmission link 43. Because there is no relative rotation between the main transmission link 43 and the base plate 31, the elastic member 45 remains rigidly connected. The base plate 31, pulled upward by the main transmission link 43, rotates about the pivot assembly 5. The smoke damper 32 rotates synchronously with the base plate 31 via the linkage assembly. Because there is no relative rotation between the main transmission link 43 and the base plate 31, the auxiliary transmission link 44 is in a free-following state, keeping the smoke damper 32 and the base plate 31 relatively stationary. When the base plate 31 rotates to the maximum angle limited by the rotating connection assembly 5, the base plate 31, the smoke inlet plate 33 and the front plate 13 of the smoke collecting housing 1 form a triangular support structure, and the range hood switches to the on state. At this time, the elastic member 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 to rotate. Therefore, relative rotation occurs between the main transmission connecting rod 43 and the base plate 31. The force of the driving connecting rod 42 pushing the main transmission connecting rod 43 exceeds the pre-tightening force of the elastic member 45, and the elastic member 45 is gradually stretched or compressed. For example, the position of the connection of the elastic member 45 in the present embodiment causes the elastic member 45 to be gradually stretched during this process. The rotation of the main transmission link 43 relative to the base plate 31 forces the auxiliary transmission link 44 to rotate relative to the main transmission link 43, and produces a traction effect on the smoke baffle 32. The smoke baffle 32 rotates independently around the bottom of the base plate 31 under the traction of the auxiliary transmission link 44, and its posture gradually becomes horizontal, so that the front and rear range of the smoke baffle 32 blocking the oil smoke gradually expands, so that the ultra-thin range hood enters the adjustment state from the open state.

[0042] The transmission assembly of this embodiment 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, through the cooperation of the elastic member 45 with the main transmission link 43 and the auxiliary transmission link 44. In the open state of the ultra-thin range hood, the rapid prototyping of the triangular support structure is prioritized, while in the adjustment state, the coverage of the smoke baffle 32 is refined to avoid mutual interference between the two stages of movement. The linear drive of the driver 41 and the multi-link coordination of the transmission assembly utilize the deformation threshold of the elastic member 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 the system complexity and the risk of failure. After the triangular support structure of the ultra-thin range hood is locked in the open state, the smoke baffle 32 rotates independently to adjust the front and rear smoke blocking range according to different smoke intensities, making the ultra-thin range hood of this embodiment more adaptable to different cooking methods.

[0043] In this embodiment, when the ultra-thin range hood switches from the closed state to the open state, 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 vertically aligned and completely cover the front panel 13 and the smoke inlet plate 33 of the ultra-thin range hood. The base plate 31 and the smoke baffle 32 form a seamless, closed surface on the front of the ultra-thin range hood when closed, completely eliminating the joint gaps common in traditional folding structures. This prevents dust from entering the internal fan 2 through these gaps and enhances the overall aesthetics of the ultra-thin range hood through a visually integrated design.

[0044] In this implementation case, refer to Figure 5 Combined with Figure 3, as for the rotation connection assembly 5, it includes a first open-chain multi-link 51 and a second open-chain multi-link 52, a limit slider 53, and a limit link 54. Among them, the first open-chain multi-link 51 and the second open-chain multi-link 52 each include at least two links r connected in sequence, the rod bodies of the first open-chain multi-link 51 and the second link structure are rotationally connected to each other, and the two ends of the first open-chain multi-link 51 and the second open-chain multi-link 52 are respectively rotationally connected to the internal top of the smoke collecting shell 1 and the inner surface of the base plate 31, and the rotation connection ends 51a and 52a of the first open-chain multi-link 51 and the second open-chain multi-link 52 on the smoke collecting shell 1 are spaced front and back and on the base plate 31. The rotating connection ends 51b and 52b are spaced longitudinally; the limit slider 53 can be slidably connected to the smoke collecting shell 1 back and forth, and the limit slider 53 has a maximum forward sliding stroke. More specifically, the inner top of the smoke collecting shell 1 is provided with a limit slide rail 55 extending in the front and rear directions, and the limit slider 53 is slidably connected to the limit slide rail 55. The limit slide rail 55 is provided with a stop end abutting against the limit slider 53 to limit the maximum forward sliding stroke of the limit slider 53 to correspond to the maximum rotation angle of the base plate 31. The first open-chain multi-link 51 and the second open-chain multi-link 52 are respectively connected to the smoke collector shell 1 in a front-to-back direction and are connected to the inner surface of the base plate 31 in a longitudinally spaced manner to form a double-pivot dynamic support system. When the base plate 31 rotates, the rod bodies 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 base plate 31 has a unique rotation trajectory during the unfolding process, and the double-pivot system constructed by the first open-chain multi-link 51 and the second open-chain multi-link 52 improves the stability of the base plate 31 during rotation, avoiding the occurrence of shaking, deflection, etc. The limit slider 53 is linearly related to the forward movement stroke of the slider and the rotation angle of the base plate 31. During the process of switching from the closed state to the open state, the freedom of the first open-chain multi-link 51 and the second open-chain multi-link 52 allows the base plate 31 to rotate and unfold smoothly. When the base plate 31 approaches the maximum rotation angle, the limit slider 53 reaches the maximum movement 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 base plate 31 can be accurately stopped at the preset angle, thereby improving the accuracy of operation.

[0045] In this embodiment, the rotating connection assembly 5 also includes an elastic reset member 56, which is configured as a compression spring and acts on the limit slider 53 to drive the limit slider 53 to slide toward the maximum stroke. The introduction of the elastic reset member 56 enhances the self-resetting ability and movement stability of the rotating connection assembly 5. The elastic reset member 56 acts on the limit slider 53 and continuously applies an elastic force in the direction of the maximum stroke, so that the base plate 31 automatically maintains the open angle lock in the non-working state, avoiding accidental retreat due to vibration or gravity. When the driver 41 drives the base plate 31 to rotate, the preload direction of the compression spring is in the same direction as the driving direction, which helps to offset the friction resistance of the multi-link mechanism composed of the first open-chain multi-link 51 and the second open-chain multi-link 52, thereby reducing the driving energy consumption and making the rotation of the base plate 31 smoother.

[0046] In this implementation case, refer to Figure 6 Combined with Figure 3 To ensure the rotational connection between the smoke damper 32 and the base plate 31, the base plate 31 has a transversely arranged horizontal axis 311 at its bottom. The horizontal axis 311 is provided with at least one base plate connecting piece 312 fixedly connected to the base plate 31. The top of the smoke damper 32 has at least one sleeve 321, which is rotatably sleeved on the horizontal axis 311. Regarding the specific arrangement of the sleeve 321 and the smoke damper 32, the sleeve 321 is provided with a smoke damper connecting piece 322 fixedly connected to the smoke damper 32. The sleeve 321 also has a transmission arm 323, which is rotatably connected to the transmission assembly, namely the secondary transmission connecting rod 44. The integrated arrangement of the horizontal axis 311 and the sleeve 321 ensures that the rotational adjustment of the smoke damper 32 is highly stable when in the adjustment state.

[0047] In this implementation case, refer to Figure 7 Combined with Figure 3 As for the linkage assembly, it includes a linkage rail 313, a base plate linkage bracket 314 and a smoke inlet plate linkage bracket 331, wherein the linkage rail 313 is longitudinally arranged on the inner surface of the base plate 31, the base plate linkage bracket 314 is slidably connected to the linkage rail 313 so that it can slide longitudinally, and the smoke inlet plate linkage bracket 331 is arranged on the smoke inlet plate 33 and is rotatably connected to the base plate linkage bracket 314. At least one linkage assembly is provided, usually two are provided and are symmetrically arranged on the left and right, 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 collecting shell 1. The smoke inlet plate linkage bracket 331 extends longitudinally and is arranged on the inner surface of the smoke inlet plate 33. Its top end is rotatably connected to the base plate 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 base plate 31.

[0048] In this implementation case, refer to Figure 1On both sides of the base plate 31 and the smoke baffle 32, there are respectively provided with an upper wing plate 31a and a lower wing plate 32a that retract inwards to the rear side, and are used to always close the gap between the base plate 31, the smoke baffle 32, and the window 11 during the process of switching the ultra-thin range hood from the closed state to the open state. In this embodiment, by retracting the upper wing plate 31a and the lower wing plate 32a, a dynamic seal is achieved between the base plate 31 and the smoke baffle 32 throughout the entire movement process; when the ultra-thin range hood is in the closed state, the upper wing plate 31a and the lower wing plate 32a are completely embedded in the two sides of the window 11, eliminating the horizontal gap; when the upper wing plate 31a and the lower wing plate 32a are opened, they rotate synchronously with the base plate 31 and the smoke baffle 32, always sliding in contact with the two sides of the window 11, forming a continuous closed interface, and blocking the path for oil smoke to escape from both sides.

[0049] The ultra-thin range hood of this embodiment, referring to Figure 8 、 Figure 9 、 Figure 10 A temperature sensor 6 is provided. This sensor is used to detect the temperature of pots placed on the cooktop, providing a criterion for adjusting the frequency of the fan 2. The temperature sensor 6 is located within the smoke collector housing 1. A through hole h is provided in the bottom plate 14 of the smoke collector housing 1, partially exposing the temperature sensor 6 to facilitate temperature detection. The temperature sensor 6 includes a thermally insulating protective housing 61 and a temperature sensor 62, which is located within the thermally insulating protective housing 61.

[0050] In the ultra-thin range hood of this embodiment, a through hole h is provided on the bottom plate 14 of the smoke collecting shell 1 so that the temperature sensor 6 is close to the stove, and the vertical distance between the temperature sensor 62 and the pot is shortened, which significantly improves the accuracy of temperature detection. Only a part of the temperature sensor 6 is exposed through the through hole h to reduce the direct contact between the temperature sensor 6 and the stove to generate heat radiation. On this basis, the temperature sensor 6 weakens heat conduction by providing a thermal insulation protective shell 61, which plays a role in insulating the temperature sensor 62 arranged in the thermal insulation protective shell 61, thereby effectively reducing the operating temperature of the temperature sensor 62 to ensure its performance is in a normal state.

[0051] In this embodiment, when the stove starts working, the temperature of the pot placed on the stove gradually increases. For example, when the temperature t1 detected by the temperature sensor 6 is ≥50°C, the fan 2 starts to absorb the oil smoke. When the detected temperature t2 is ≥240°C, the power of the fan 2 is increased to the strong gear, and the suction and exhaust volume is increased to speed up the exhaust of oil smoke, thereby improving the quality of the air in the kitchen and giving people a better experience. When the detected temperature t2 is ≥300°C, it will be determined that dry burning has occurred. At this time, the gas switch of the stove will be automatically turned off through the smoke and range hood linkage program. At the same time, the power of the fan 2 is increased again to speed up the exhaust of odorous air. After a period of time, its speed is reduced to achieve the purpose of reducing noise. In addition, the detection temperature and the corresponding fan 2 power setting 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°C, 240°C and 300°C.

[0052] In this embodiment, the temperature sensor 62 is set to be an infrared temperature sensor 62, which has the advantages of high temperature resolution, fast response speed, high measurement accuracy and good stability.

[0053] In this embodiment, the temperature sensor 6 also includes an insulating layer within the insulating protective housing 61 to insulate the temperature sensor 62. This insulating layer enhances the high-temperature resistance of the temperature sensor 62 while ensuring accurate temperature sensing, thereby further reducing the operating temperature of the temperature sensor 62. The insulating layer can be configured as an aerogel composite layer, an insulating cotton layer, a graphene air felt layer, or other materials, all of which offer excellent thermal insulation.

[0054] In this implementation case, refer to Figure 10 The bottom plate 14 of the smoke collector housing 1 includes a front portion 141 and a rear portion 142. The front portion 141 is inclined upward from back to front, with a through-hole h provided therein. The rear portion 142 is horizontally arranged and houses the oil box 15. Due to the ultra-thin design of the range hood, the temperature sensor 6 is positioned relatively far back relative to the stove. The tilted front portion 141 tilts the temperature sensor 6's detection angle accordingly, rather than pointing vertically downward, aiming it toward the stove. This optimizes the spatial path for thermal signal capture and improves detection accuracy.

[0055] In this embodiment, the front of the oil box 15 is tilted forward from the bottom edge to the top edge, so that the smoke collecting shell 1 extending from the front of the bottom plate 141 to the front of the oil box 15 is tilted, thereby improving the overall aesthetics of the ultra-thin range hood.

[0056] In this embodiment, two temperature sensors 6 are provided, spaced laterally apart, each used to detect the pots on two corresponding cooktops. This independent, laterally arranged arrangement of the two temperature sensors 6 enables precise, zoned detection and targeted response to dual-cooktop operating conditions. The two temperature sensors 6 are each aligned with the core heating area of ​​the pots on the left and right cooktops, allowing them to operate independently and improving temperature detection accuracy.

[0057] In this embodiment, both temperature sensors 6 are laterally offset from their corresponding cooktops, and both are offset away from the center of the smoke collector housing 1. This laterally outward-biased design of the dual temperature sensors 6 balances detection accuracy and anti-interference requirements. Specifically, oil smoke is primarily concentrated in the central region, where it is drawn into the smoke inlet 33a. Temperature sensors 6 are positioned away from the main oil smoke ascending channel, reducing direct oil mist adhesion and high-temperature airflow impact, lowering operating temperatures and improving the durability of temperature sensors 62. Furthermore, they avoid oil smoke as much as possible, thereby reducing interference from oil smoke turbulence.

[0058] In this implementation case, refer to Figure 10 as well as Figure 11 The temperature sensor 6 also includes a signal processor 63 disposed within a thermally insulated protective housing 61. A power supply box 7 is disposed within the smoke collector housing 1. The power supply box 7 houses a power supply for the fan 2 and the driver 41, as well as a mainboard 71. The signal processor 63 processes data detected by the temperature sensor 62 and converts it into signals recognizable by the mainboard 71. The mainboard 71 then uses these signals to drive the fan 2 and adjust its power.

[0059] In this implementation case, refer to Figure 11 One side of the smoke collector housing 1 features a mounting recess 1c for the power supply box 7. A removable cover 7a is located on the side of the power supply box 7 exposed by the recess 1c. The mainboard 71 and power supply are housed within the side power supply box 7. The removable cover 7a forms a self-contained maintenance unit, allowing for quick replacement of the power supply or mainboard 71 without disassembling the entire unit.

[0060] In this implementation case, refer to Figure 11The front sides of the two side portions of the smoke collector housing 1 have a convex structure 1a that protrudes outward relative to the rear side, and the rear side has a concave structure 1b that is recessed inward relative to the front side. A mounting groove 1c is provided on one of the concave structures 1b on the side. Lights 16 are provided on the backs of both convex structures 1a. When the box cover 7a is removed, the backlight 16 on the convex structure 1a projects light directly onto the mounting groove 1c in the concave area, creating a localized shadowless lighting environment. This allows the internal components of the power box 7 to be clearly identified without the need for handheld tools, reducing the risk of misoperation. Furthermore, because the lights 16 are located on the backs of the convex structures, they can also serve as ambient lighting when turned on, balancing practicality and visual aesthetics.

[0061] In this embodiment, at least one wire clip 1d is provided on the concave structure 1b with the mounting groove 1c to restrain the power cord 72 of the power box 7. The wire clip 1d fixes the power cord's direction, prevents the line from being loosely entangled, and improves neatness and wiring safety.

[0062] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above implementation cases, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above implementation cases, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the implementation cases of the present invention.

Claims

1. An ultra-thin range hood, characterized in that: It comprises a smoke collecting housing (1) and a fan (2) located in the smoke collecting housing (1), wherein the front plate (13) of the smoke collecting housing (1) has a window (11); and a substrate (31) arranged at the top of the window (11) for transverse rotation, a smoke baffle (32) arranged at the bottom of the substrate (31), and a smoke inlet plate (33) arranged at the bottom of the window (11) for transverse rotation and having a smoke inlet (33a); the substrate (31) and the smoke inlet plate (33) are movably connected by a linkage assembly so that the two can rotate synchronously, and the ultra-thin range hood has a closed state in which the substrate (31), the smoke inlet plate (33), and the smoke baffle (32) are simultaneously retracted into the window (11), and an open state in which the substrate (31), the smoke inlet plate (33), and the smoke baffle (32) are simultaneously extended toward the front side of the window (11); in the closed state, the smoke baffle (32) blocks the smoke inlet (33a); in the open state, the smoke baffle (32) is located in front of the smoke inlet (33a) to block the oil smoke and guide it toward the smoke inlet (33a); and a driver (41), a transmission assembly connecting the driver (41) and the substrate (31), wherein the driver (41) is used to drive the substrate (31) to rotate via the transmission assembly; The smoke collecting housing (1) is provided with a rotating connection assembly (5) movably connected to at least one of the base plates (31), the rotating connection assembly (5) limiting the maximum rotation angle of the base plate (31), and the maximum rotation angle corresponds to the open state of the ultra-thin range hood; the smoke baffle (32) is arranged to rotate transversely at the bottom of the base plate (31), and the transmission assembly is also transmission-connected to the smoke baffle (32), so that the smoke baffle (32) can rotate around the bottom of the base plate (31) to expand the front and rear range of the smoke baffle (32) blocking the oil smoke; The transmission assembly comprises a driving connecting rod (42) rotatably connected to the driver (41), a main transmission connecting rod (43) rotatably connected to the base plate (31), a secondary transmission connecting rod (44) rotatably connected to the smoke baffle (32), and an elastic member (45) connecting the main transmission connecting rod (43) and the base plate (31); the driver (41) is configured as a linear drive, the ends of the driving connecting rod (42) and the main transmission connecting rod (43) are rotatably connected, and the end of the secondary transmission connecting rod (44) is rotatably connected to the rod body of the main transmission connecting rod (43), so that the base plate (31) and the smoke baffle (32) are relatively stationary during the process of the ultra-thin range hood transitioning from the closed state to the open state, and the ultra-thin range hood has an adjustment state in which the smoke baffle (32) rotates around the bottom of the base plate (31) when the ultra-thin range hood reaches the open state and the driver (41) continues to drive.

2. The ultra-thin range hood according to claim 1, characterized in that: During the process of switching the ultra-thin range hood from a closed state to an open state, the base plate (31) and the smoke baffle (32) maintain a mutually flush posture; when the ultra-thin range hood is in the closed state, the base plate (31) and the smoke baffle (32) are in a vertical state and cover and shield the front plate (13) and the smoke inlet plate (33) of the ultra-thin range hood.

3. The ultra-thin range hood according to claim 1, characterized in that: The rotation connection assembly (5) comprises a first open-chain multi-link (51) and a second open-chain multi-link (52), a limit slider (53) slidably connected to the smoke collecting housing (1) in a forward and backward manner, and a limit link (54) rotatably connected to the limit slider (53) and the rod body of the first open-chain multi-link (51) or the second open-chain multi-link (52); the rod bodies of the first open-chain multi-link (51) and the second open-chain multi-link (52) are rotatably connected to each other, and the first open-chain multi-link (51) and the second open-chain multi-link (52) are rotatably connected to each other. Both ends of the second open-chain multi-link (52) are rotatably connected to the smoke collecting housing (1) and the base plate (31), and the first open-chain multi-link (51) and the second open-chain multi-link (52) are spaced front to back at their rotatable connection (51a) (52a) ends on the smoke collecting housing (1) and spaced longitudinally at their rotatable connection ends (51b) (52b) on the base plate (31); the limit slider (53) has a maximum forward sliding stroke corresponding to the maximum rotation angle of the base plate (31).

4. The ultra-thin range hood according to claim 3, characterized in that: The rotating connection assembly (5) further comprises an elastic reset member (56), and the elastic reset member (56) acts on the limiting slider (53) to drive the limiting slider (53) to slide toward the maximum stroke.

5. The ultra-thin range hood according to claim 1, characterized in that: The bottom of the base plate (31) has a transversely arranged horizontal axis (311), the top of the smoke shield (32) has at least one shaft sleeve (321) rotatably sleeved on the transverse axis (311), and the shaft sleeve (321) has a transmission arm (323) rotatably connected to the transmission assembly.

6. The ultra-thin range hood according to claim 1, characterized in that: The linkage assembly comprises a linkage slide rail (313) longitudinally arranged on the inner surface of the base plate (31), a base plate linkage bracket (314) slidably connected to the linkage slide rail (313), and a smoke inlet plate linkage bracket (331) arranged on the smoke inlet plate (33); the base plate linkage bracket (314) and the smoke inlet plate linkage bracket (331) are rotatably connected.

7. The ultra-thin range hood according to any one of claims 1 to 6, characterized in that: Both sides of the base plate (31) and the smoke baffle (32) are respectively provided with an upper wing plate (31a) and a lower wing plate (32a) that are retracted inwards toward the rear side, and are used to always close the gap between the base plate (31) and the smoke baffle (32) and the two sides of the window (11) during the process of switching the ultra-thin range hood from the closed state to the open state.

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