A range hood switch and range hood

Abstract

The utility model provides a kind of range hood switch, belong to kitchen appliance technical field.The range hood switch, the left and right sides of switch body are respectively provided with installation part;Upper rear support is arranged in the upper portion of the rear side of switch body;Lower rear elastic support is arranged in the lower portion of the rear side of switch body.Through the synergic design of rigid support of upper rear support and the elastic buffer of lower rear elastic support, the middle stress concentration, warping deformation and insufficient problem of fit caused by thermal expansion and contraction, vibration or installation surface deviation of long strip switch body are solved.Upper rear support is dispersed by multi-point rigid support Stress, avoid the middle deformation under the structure of both ends fixed;Lower rear elastic support uses elastic material dynamic compensation installation surface deviation, ensure that switch body and glass panel are closely fitted, eliminate gap, light transmission and the risk of oil stain infiltration.The gradual pressure distribution is formed by the combination of the two, significantly improve the anti-vibration performance and long-term stability, prolong service life.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a range hood switch and a range hood. Background Technology

[0002] In modern kitchen appliances, switches are core control components, and their structural design is crucial to the stability, sealing, and user experience of the equipment. Traditional switches often use a two-end fixed structure, directly connecting to the device panel (such as a glass panel or base box) through mounting parts on the left and right sides. However, this design has a significant drawback: the elongated switch body is prone to stress concentration in the middle under thermal expansion and contraction, vibration, or external forces, causing the switch body to warp in the middle, thus creating a gap between it and the mounting surface, resulting in problems such as light transmission and a noticeable hollow feeling. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a solution that combines rigid support with elastic buffering to resolve issues such as warping in the middle of the switch body due to thermal expansion and contraction or vibration, insufficient fit, and poor sealing, thereby improving the stability and service life of the switch.

[0004] In one aspect, a range hood switch is provided, including a switch body, an upper rear support member, and a lower rear elastic support member; Mounting parts are provided on the left and right sides of the switch body respectively; The rear upper support is located on the upper part of the rear side of the switch body; The lower rear elastic support is located at the lower part of the rear side of the switch body.

[0005] Furthermore, the rear upper support member includes a connecting portion and a support protrusion; One side of the connecting part is connected to the switch body, and the other side is provided with the support protrusion.

[0006] Furthermore, the rear upper support also includes a reinforcing support portion; The reinforcing support is located below the support protrusion and is connected to the connecting part and the support protrusion.

[0007] Furthermore, there are at least two support protrusions, which are respectively located near the left and right ends of the connecting portion.

[0008] Furthermore, there are multiple rear upper support members; the multiple rear upper support members are evenly distributed along the horizontal direction.

[0009] Furthermore, the rear lower elastic support includes a connecting body and an elastic support body; One end of the connector is connected to the switch body, and the other end is connected to one end of the elastic support, causing the elastic support to extend backward and downward.

[0010] Furthermore, the rear lower elastic support also includes a reinforcing support body; The reinforcing support is connected to the connecting body and the elastic support, and is located below the connection point between the connecting body and the elastic support.

[0011] Furthermore, the lower rear elastic support is an integral structure.

[0012] Furthermore, the lower rear elastic support is positioned near the lower rear part of the switch body.

[0013] In a second aspect, a range hood is provided, including a range hood housing assembly and a range hood switch as described in the above technical solution; The mounting part is connected to the range hood housing assembly; The rear upper support abuts against the range hood housing assembly; The lower rear elastic support member elastically abuts against the range hood housing assembly.

[0014] The present invention has the following advantages or beneficial effects: By employing a synergistic structure of an upper rear support (providing rigid support) and a lower rear elastic support (providing elastic cushioning), the problems of stress concentration, warping deformation, and insufficient fit in the center of long, strip-shaped switch bodies caused by thermal expansion and contraction, vibration, or uneven mounting surfaces are effectively solved. The upper rear support distributes the stress on the switch body through multi-point rigid support, preventing deformation in the center due to the fixed structures at both ends. The lower rear elastic support dynamically compensates for minor deviations in the mounting surface using elastic material, ensuring a tight fit between the switch body and the glass panel across the entire area, eliminating gaps, light transmission, and the risk of oil seepage. Simultaneously, the combination of these two components creates a progressive pressure distribution, significantly improving the switch body's vibration resistance and long-term stability, thus extending its service life. Attached Figure Description

[0015] The above and other features and advantages of this invention will become more apparent from a detailed description of exemplary embodiments with reference to the accompanying drawings.

[0016] Figure 1 This is a first-view structural schematic diagram of a range hood switch according to an exemplary embodiment; Figure 2 This is a second-view structural schematic diagram of a range hood switch according to an exemplary embodiment; Figure 3 yes Figure 2 Enlarged view of part A in the image; Figure 4 yes Figure 2 Enlarged view of part B in the image; Figure 5 This is a side view of a range hood switch being installed according to an exemplary embodiment.

[0017] The reference numerals in the attached figures are explained as follows: 1. Switch body; 2. Mounting part; 3. Upper rear support; 4. Lower rear elastic support; 5. Mounting surface; 31. Connecting part; 32. Supporting protrusion; 33. Reinforcing support part; 41. Connector; 42. Elastic support; 43. Reinforced support. Detailed Implementation

[0018] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0019] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended meaning of inclusion and that other elements / components / etc. may exist in addition to the listed elements / components / etc.

[0020] Figure 1 This is a first-view structural schematic diagram of a range hood switch according to an exemplary embodiment; Figure 2 This is a second-view structural schematic diagram of a range hood switch according to an exemplary embodiment; Figure 3 yes Figure 2 Enlarged view of part A in the image; Figure 4 yes Figure 2 Enlarged view of part B in the image; Figure 5 This is a side view of a range hood switch during installation, according to an exemplary embodiment. The above schematic diagram is only for illustrating the structural relationships related to the inventive point and is not intended as a scale representation of an actual product.

[0021] like Figures 1 to 5 As shown, an embodiment of the present invention provides a range hood switch, including a switch body 1, an upper rear support 3, and a lower rear elastic support 4; mounting portions 2 are respectively provided on the left and right sides of the switch body 1; the upper rear support 3 is provided on the upper part of the rear side of the switch body 1; and the lower rear elastic support 4 is provided on the lower part of the rear side of the switch body 1.

[0022] The switch body 1 is the physical foundation of the switch, typically comprising a housing, contact system, operating components (such as buttons and levers), and support. Its main function is to control the connection and disconnection of circuits through physical or electronic means, thereby enabling the starting, stopping, or state switching of electrical equipment.

[0023] The structure of the switch body 1 varies depending on the type and application, but it typically includes at least a housing to protect internal components from external environmental factors (such as dust, moisture, and mechanical damage) and to provide an interface for installation and operation. Common materials include plastics (such as ABS and PC), metals (such as zinc alloys and stainless steel), or composite materials. The contact system achieves circuit connection and disconnection through physical contact or separation.

[0024] The upper rear support 3 is located on the upper rear side of the switch body 1. It distributes the force on the switch body 1 through rigid support, balancing the stress distribution of the elongated structure. By distributing the stress of the switch body 1 through the upper support point, it avoids stress concentration in the middle caused by fixing at both ends, thus eliminating the warping problem after installation.

[0025] The lower rear elastic support 4 is located at the lower rear side of the switch body 1. Through the elastic support 42, it provides dynamic compensation to adapt to deformation caused by unevenness of the mounting surface 5. The flexible design of the lower rear elastic support 42 absorbs material expansion or contraction caused by temperature changes, preventing the switch body 1 from cracking or detaching due to stress accumulation. The elastic fit between the lower rear elastic support 4 and the mounting surface 5 ensures full-area contact between the switch body 1 and the glass panel, eliminating the hollow feeling when pressing.

[0026] The upper rear support 3 provides rigid support, while the lower rear elastic support 4 provides flexible compensation. The combination of the two achieves a gradual pressure distribution from top to bottom, balancing the stress state of the switch body 1. This effectively solves the problem of local stress concentration in traditional two-end fixed structures under vibration or temperature changes.

[0027] Here, the mounting part 2 is the connection part 31 between the switch body 1 and the equipment panel, etc. It is usually designed as a mounting plate, mounting piece or mounting base, and its core function is to achieve fixation through bolt holes.

[0028] The mounting plate is a flat plate structure extending from the left and right sides of the switch body 1. Bolt holes are pre-machined on the mounting plate, and their number and position match the installation area.

[0029] The mounting plate is a thin metal or plastic sheet that extends from the side of the switch body 1, resembling an "ear"-shaped structure.

[0030] The mounting base is a three-dimensional structure (such as L-shaped or U-shaped) protruding from the rear side of the switch body 1, which directly contacts the mounting area. The mounting base is provided with bolt holes, the hole positions of which are adapted to the fixing bracket or base box of the mounting area.

[0031] In one embodiment, the upper rear support 3 includes a connecting portion 31 and a support protrusion 32; one side of the connecting portion 31 is connected to the switch body 1, and the other side is provided with the support protrusion 32. The upper rear support 3 also includes a reinforcing support portion 33; the reinforcing support portion 33 is located below the support protrusion 32 and is connected to the connecting portion 31 and the support protrusion 32.

[0032] The connecting part 31 is the basic part of the rear upper support 3, and is usually a flat or U-shaped structure. The material can be metal (such as zinc alloy, stainless steel) or high-strength plastic (such as ABS, PC). One side of it is fixedly connected to the upper rear side of the switch body 1 by screws, clips, or one-piece molding process. The width and thickness of the connecting part 31 need to be designed according to the size of the switch body 1 and the stress requirements to ensure sufficient rigidity.

[0033] When screws are used for fixing, bolt holes are pre-drilled between the connecting part 31 and the switch body 1, and the screws are tightened for fixing. When a snap-fit ​​connection is used, the edge of the connecting part 31 is designed with a groove or protrusion to engage with the snap-fit ​​of the switch body 1. When one-piece molding is used, the connecting part 31 and the switch body 1 are directly combined through injection molding or stamping processes, reducing assembly steps.

[0034] The support protrusion 32 is a raised structure extending from the connecting portion 31, typically cylindrical, arc-shaped, or trapezoidal, with a height ranging from 0.5mm to 3mm (adjusted according to the distance between the switch body 1 and the abutting support frame). Its surface may be designed as flat, beveled, or textured to enhance contact stability with the mounting surface 5. Multiple support protrusions 32 can be distributed horizontally (e.g., 2-4), with two of them positioned near the left and right ends of the connecting portion 31, evenly covering the middle and rear area of ​​the switch body 1.

[0035] The support protrusion 32 extends directly from the other side of the connector 31 and is integrated with the connector 31 (e.g., injection molding or metal stamping). If it is a separate structure, it can be fixed to the connector 31 by welding, screws or adhesive.

[0036] The reinforcing support 33 is located below the supporting protrusion 32 and is typically triangular, L-shaped, or arc-shaped, forming a triangular support system with the connecting part 31 and the supporting protrusion 32. It is made of the same material as the connecting part 31 and must possess high bending strength and fatigue resistance. The width and thickness of the reinforcing support 33 are designed according to the dimensions of the supporting protrusion 32 and the stress requirements to ensure stress distribution. The reinforcing support 33 is integrally formed with the connecting part 31 and the supporting protrusion 32 or welded / bonded to form a stable mechanical structure.

[0037] The upper rear support 3 provides multi-point rigid support on the upper rear side of the switch body 1 through the support protrusion 32, dispersing stress. The reinforced support 33 and the support protrusion 32 form a triangular support system, enhancing bending resistance and preventing material fatigue.

[0038] The rear upper support 3, through the coordinated design of the connecting part 31, the support protrusion 32, and the reinforcing support part 33, solves the problems of middle warping and insufficient fit caused by thermal expansion and contraction and vibration during the installation and use of the elongated switch body 1. Its multi-point support, triangular mechanical structure, and dynamic compensation mechanism significantly improve the stability, sealing performance, and user experience of the switch.

[0039] There are multiple rear upper support members 3; these multiple rear upper support members 3 are evenly distributed along the horizontal direction. This design of multiple rear upper support members 3 evenly distributed along the horizontal direction is essentially a multi-point support structure. After the long strip switch body 1 is fixed at both ends, stress concentration in the middle is prone to occur due to thermal expansion and contraction, vibration, or material fatigue, leading to warping in the middle. By using multiple evenly distributed support members, the stress points of the switch body 1 are extended from both ends to multiple locations, forming multi-point pressure equalization. Each support member independently bears local stress, avoiding stress concentration at a single point, thereby suppressing warping in the middle. This significantly reduces the risk of bending of the switch body 1 and maintains flatness after installation.

[0040] In this embodiment, the upper rear support 3 and the switch body 1 are designed as a single unit. Specifically, the connecting portion 31, support protrusion 32, and reinforcing support portion 33 of the upper rear support 3 are directly integrated with the upper rear structure of the switch body 1 through processes such as injection molding, stamping, or 3D printing. This design eliminates the need for additional assembly steps, forming a single integrated structure. Through integrated molding, the upper rear support 3 and the switch body 1 form a unified mechanical structure, eliminating stress concentration points at the connection. This significantly enhances the bending resistance and vibration resistance of the switch body 1 after installation. It also reduces the likelihood of loosening or fatigue fracture during long-term use.

[0041] In a preferred embodiment, the rear lower elastic support 4 includes a connecting body 41 and an elastic support 42; one end of the connecting body 41 is connected to the switch body 1, and the other end is connected to one end of the elastic support 42, causing the elastic support 42 to extend rearward and downward. The rear lower elastic support 4 also includes a reinforcing support 43; the reinforcing support 43 is connected to the connecting body 41 and the elastic support 42, and is located below the connection point between the connecting body 41 and the elastic support 42.

[0042] The connector 41 is typically made of metal (such as zinc alloy or stainless steel) or high-strength plastic (such as ABS or PC), and can be strip-shaped, column-shaped, or plate-shaped. One end is fixedly connected to the lower rear side of the switch body 1 by screws, clips, or a one-piece molding process. The other end is connected to one end of the elastic support 42, forming a rigid-elastic transition structure.

[0043] When fixed with screws, bolt holes are pre-drilled between the connector 41 and the switch body 1, and the screws are tightened to secure it. When connected by snap-fit, the edge of the connector 41 is designed with a groove or protrusion to engage with the snap-fit ​​of the switch body 1. When integrally molded, the connector 41 and the switch body 1 are directly combined through injection molding or stamping processes, reducing assembly steps.

[0044] The elastic support 42 is a flexible structure, and its shape can be columnar, corrugated, or trapezoidal. One end is fixed to the connector 41, and the other end extends backward and downward to contact the mounting surface 5 (such as a support frame, frame, or box) to form an elastic buffer point. The stiffness and damping characteristics of the elastic support 42 are adjustable, and different load requirements can be achieved by changing the material thickness, shape, or included angle. The elastic support 42 can be integrated with the connector 41 through injection molding or vulcanization processes.

[0045] The reinforcing support 43 can be triangular, L-shaped, or arc-shaped, and is located below the connection between the connector 41 and the elastic support 42. It is fixed to the connector 41 and the elastic support 42 by welding, screws, or integral molding to form a triangular support system, which disperses stress and enhances overall stability.

[0046] The reinforcing support 43 is fixed to the connecting body 41 and the elastic support 42 by welding or structural adhesive. Alternatively, bolt holes can be provided between the reinforcing support 43 and the connecting body 41 and the elastic support 42, and the parts can be tightened with screws. Alternatively, the reinforcing support 43 can be directly combined with the connecting body 41 and the elastic support 42 by injection molding or stamping.

[0047] The lower rear elastic support 4 provides elastic cushioning and stress dispersion at the lower rear side of the switch body 1 via the elastic support body 42. The reinforced support body 43 and the elastic support body 42 form a triangular support system, enhancing bending resistance and preventing material fatigue. This significantly reduces deformation in the middle of the switch body 1, maintaining flatness after installation. It also improves the fit between the switch and a glass panel, preventing light leakage or a hollow feel, and avoiding gaps that could lead to light leakage, oil seepage, or unresponsive gesture control.

[0048] The elastic support 42 ensures full contact between the switch body 1 and the mounting surface 5. The flexible design of the reinforced support 43 (if made of elastic material) can dynamically compensate for minor unevenness of the mounting surface 5.

[0049] In this embodiment, the rear lower elastic support 4 is positioned near the center of the lower rear side of the switch body 1. It provides concentrated elastic buffering for the critical rear middle area of ​​the switch body 1, directly dispersing stress in the center. The elastic support 42 extends rearward and downward, contacting the rear mounting surface 5 (such as a support frame, frame, or housing), significantly reducing deformation in the center of the switch body 1 and maintaining flatness after installation. This improves the fit of the switch body 1 to a glass panel, preventing light transmission or a hollow feel.

[0050] Example 2 A range hood includes a range hood housing assembly and a range hood switch as described in Embodiment 1. The mounting portion is connected to the range hood housing assembly; the upper rear support abuts against the range hood housing assembly; and the lower rear elastic support elastically abuts against the range hood housing assembly.

[0051] The range hood includes the range hood switch as described in Embodiment 1, and its overall structure also includes the following core components: The casing assembly serves as the outer shell of the range hood, protecting the internal components and creating a space for the exhaust of cooking fumes. It is typically made of cold-rolled thin steel sheet with a powder-coated surface, making it corrosion-resistant and easy to clean.

[0052] The duct system acts as a passageway for the flue gas, guiding the fumes from the intake to the exhaust. The rationality of the duct design directly affects the exhaust volume and noise level. High-end models may employ turbocharging technology to optimize airflow.

[0053] The motor in the fan system drives the impeller to rotate, generating negative pressure suction. It typically uses a fully enclosed single-phase capacitor-run asynchronous motor with a high insulation rating. The impeller in the fan system is a centrifugal impeller (blade type), which exhausts oil fumes when rotating at high speed. It is made of silicon alloy aluminum sheets and has good dynamic balance performance.

[0054] An oil collection device separates grease from cooking fumes and collects the oil stains. It includes an oil filter, an oil collection box, and an oil guide ring. The oil filter intercepts the cooking fumes, and the oil guide ring directs the condensed oil droplets into the oil collection box.

[0055] The control system controls the range hood's startup, fan speed adjustment, and smart functions. Switches are generally part of the control system.

[0056] The exhaust system removes cooking fumes outdoors. It typically includes an exhaust duct and an exhaust hood. The exhaust duct connects the range hood to the common ventilation duct. The exhaust hood is equipped with a check valve to prevent backflow of outside air.

[0057] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0058] In the description of the embodiments of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0059] In this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. 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.

[0060] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A range hood switch, characterized in that, It includes a switch body (1), a rear upper support member (3), and a rear lower elastic support member (4); The switch body (1) is provided with mounting parts (2) on its left and right sides respectively; The rear upper support (3) is disposed on the upper part of the rear side of the switch body (1); The lower rear elastic support (4) is located on the lower part of the rear side of the switch body (1).

2. The range hood switch according to claim 1, characterized in that, The rear upper support member (3) includes a connecting part (31) and a support protrusion (32); One side of the connecting part (31) is connected to the switch body (1), and the other side is provided with the support protrusion (32).

3. A range hood switch according to claim 2, characterized in that, The rear upper support (3) also includes a reinforcing support (33); The reinforcing support (33) is located below the support protrusion (32) and is connected to the connecting part (31) and the support protrusion (32).

4. A range hood switch according to claim 2 or 3, characterized in that, There are at least two support protrusions (32), and the two support protrusions (32) are respectively located near the left and right ends of the connecting part (31).

5. A range hood switch according to claim 2 or 3, characterized in that, There are multiple rear upper support members (3); the multiple rear upper support members (3) are evenly distributed in the horizontal direction.

6. A range hood switch according to claim 1, characterized in that, The rear lower elastic support (4) includes a connector (41) and an elastic support (42); One end of the connector (41) is connected to the switch body (1), and the other end is connected to one end of the elastic support (42), so that the elastic support (42) extends backward and downward.

7. A range hood switch according to claim 6, characterized in that, The rear lower elastic support (4) also includes a reinforcing support (43); The reinforcing support (43) is connected to the connector (41) and the elastic support (42), and is located below the connection between the connector (41) and the elastic support (42).

8. A range hood switch according to claim 6, characterized in that, The lower rear elastic support (4) is an integral structure.

9. A range hood switch according to claim 6, characterized in that, The lower rear elastic support (4) is located in the middle of the lower rear side of the switch body (1).

10. A range hood, characterized in that, Includes a range hood housing assembly and a range hood switch as described in any one of claims 1 to 9; The mounting part (2) is connected to the range hood housing assembly; The rear upper support (3) abuts against the range hood housing assembly; The lower rear elastic support (4) elastically abuts against the range hood housing assembly.

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