Range hood shell and range hood

Abstract

The utility model provides a range hood shell and a range hood, and belongs to the technical field of household appliances. The range hood shell comprises a front plate, a rear plate, a left side plate, a right side plate, a top plate and a bottom plate, edges of two adjacent plates are connected with each other to form a range hood shell; wherein the top of the left side plate is welded with the top plate, and the top of the right side plate is welded with the top plate; the bottom of the left side plate and the bottom of the right side plate are welded with the bottom plate; the top of the front plate is detachably connected with the top plate, and the bottom of the front plate is embedded into the bottom plate; a main smoke suction opening is formed in the front plate; an auxiliary smoke suction opening is formed in the bottom plate. And the main smoke suction port is formed in the front plate, so that oil smoke generated during cooking can be captured more directly and effectively, and diffusion of the oil smoke in a kitchen is reduced. And the auxiliary smoke suction port is additionally arranged on the bottom plate, so that the smoke suction effect can be further enhanced, an auxiliary suction effect is achieved, and the smoke is ensured to be sucked into the range hood without omission for treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a range hood casing and a range hood equipped with the casing. Background Art

[0002] As an indispensable appliance in modern kitchens, the design and performance of range hoods are of great significance to improving the kitchen environment and enhancing the cooking experience. The main function of range hoods is to keep the kitchen air fresh by absorbing and filtering harmful gases such as oil smoke, steam, and odor. In order to achieve this function, the design of the range hood casing is particularly important.

[0003] Traditional range hood casing designs usually adopt simple geometric shapes and structures. Although they can meet basic smoking needs, they have many deficiencies in terms of smoking efficiency, noise control, cleaning and maintenance. For example, unreasonable design of the position and size of the smoking port may lead to poor smoking effect, poor sealing of the casing may cause noise and oil fume leakage, and complex structure is not conducive to cleaning.

[0004] Therefore, it is necessary to optimize the casing design of the range hood to improve its overall performance. This includes improving the structural design of the casing to make it more reasonable and efficient; optimizing the position and size of the smoke inlet to improve the smoke extraction efficiency; improving the sealing of the casing to reduce noise and oil fume leakage; and simplifying the structure to facilitate cleaning and maintenance. Utility Model Content

[0005] In view of the above problems, the purpose of the present invention is to provide a range hood casing that can enhance the smoking effect.

[0006] In a first aspect, a range hood casing is provided, comprising: a front plate, a rear plate, a left plate, a right plate, a top plate and a bottom plate;

[0007] The edges of two adjacent plates are connected to each other to form a range hood housing; wherein the top of the left side plate is welded to the top plate, and the top of the right side plate is welded to the top plate; the bottom of the left side plate is welded to the bottom plate, and the bottom of the right side plate is welded to the bottom plate; the top of the front plate is detachably connected to the top plate, and the bottom of the front plate is inlaid with the bottom plate;

[0008] The front plate is provided with a main smoking port;

[0009] An auxiliary smoking port is arranged on the bottom plate.

[0010] Furthermore, there is one main smoking opening, which is arranged in the middle of the front plate; there are two auxiliary smoking openings, namely a first auxiliary smoking opening and a second auxiliary smoking opening, which are arranged on both sides below the main smoking opening.

[0011] Furthermore, the area of ​​the first auxiliary smoking opening is the same as the area of ​​the second auxiliary smoking opening.

[0012] Further, the area of ​​the main smoking opening is S1, the area of ​​the first auxiliary smoking opening is S2, and the area of ​​the second auxiliary smoking opening is S3;

[0013] Among them, S1:S2:S3=3:1:1.

[0014] Furthermore, the front end portion of the left side panel is folded to the right to form a left front connecting edge, and the edge of the left front connecting edge is recessed inward to form a left front sunken platform; the front end portion of the right side panel is folded to the left to form a right front connecting edge, and the edge of the right front connecting edge is recessed inward to form a right front sunken platform; the front end portion of the top panel is folded downward to form a top front connecting edge, and the edge of the left front connecting edge is recessed inward to form a top front sunken platform; the front end portion of the bottom panel is folded upward to form a bottom front connecting edge; wherein, the front panel abuts against the front sides of the top front sunken platform, the left front sunken platform and the right front sunken platform, and the top of the front panel is detachably connected to the top front sunken platform, and the bottom of the front panel is embedded in the rear side of the bottom front connecting edge.

[0015] Furthermore, the left front connecting edge, the right front connecting edge, the top front connecting edge, and the bottom front connecting edge are arranged flush with each other, and the left front sunken platform, the right front sunken platform, and the top front sunken platform are also arranged flush with each other.

[0016] Furthermore, the welding method between the top of the left side plate and the top plate and the welding method between the top of the right side plate and the top plate are both energy storage welding; the welding method between the bottom of the left side plate and the bottom plate and the welding method between the bottom of the right side plate and the bottom plate are both laser welding.

[0017] Furthermore, the rear panel is detachably connected to the left panel, the right panel, the top panel, and the bottom panel.

[0018] In a second aspect, a range hood is provided, comprising a range hood casing as described in the above technical solution, wherein a flap which can be flipped to open or close the main smoke outlet is arranged on the front side of the range hood casing, and the top of the flap is hingedly connected to the top of the range hood casing.

[0019] Furthermore, a push rod is detachably fixed to the bottom of the range hood casing, an opening is provided on the front plate, the top of the push rod can extend out of the opening and be detachably connected to the back of the flap, and the push rod can push the flap to flip.

[0020] The embodiments of the present invention have the following advantages or beneficial effects:

[0021] The main smoke inlet is set on the front panel, usually located in front of the stove, so as to capture the oil smoke generated during cooking more directly and effectively, reduce the spread of oil smoke in the kitchen, and greatly improve the air quality in the kitchen. The auxiliary smoke inlet is added to the bottom plate to further enhance the absorption effect of oil smoke, especially for the oil smoke overflowing from the side of the pot or the oil smoke splashed during cooking, which plays an auxiliary role in absorbing and cleaning, ensuring that the oil smoke is sucked into the range hood for treatment without omission. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0023] Figure 1 is a schematic diagram of a range hood according to an exemplary embodiment;

[0024] Figure 2 is an exploded schematic diagram of a range hood according to an exemplary embodiment.

[0025] The reference numerals are described as follows:

[0026] 1. Front plate; 2. Back plate; 3. Left plate; 4. Right plate; 5. Top plate; 6. Bottom plate; 7. Main smoking port; 8. Auxiliary smoking port; 9. Flip plate; 10. Opening;

[0027] 31. Left front connecting edge; 32. Left front sinking platform;

[0028] 41. right front connecting edge; 42. right front sinking platform;

[0029] 51. Top front connecting edge; 52. Top front sinking platform;

[0030] 61, bottom front connecting edge;

[0031] 81. First auxiliary smoking port; 82. Second auxiliary smoking port. DETAILED DESCRIPTION

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of 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 comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0033] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0034] Figure 1 is a schematic diagram of a range hood according to an exemplary embodiment; Figure 2 FIG. 1 is an exploded schematic diagram of a range hood according to an exemplary embodiment. Figure 1 and Figure 2 As shown, a range hood casing according to an embodiment of the utility model comprises: a front plate 1, a rear plate 2, a left plate 3, a right plate 4, a top plate 5 and a bottom plate 6.

[0035] The range hood housing structure is a typical hexahedral structure, consisting of six independent and mutually coordinated panels that are precisely docked and fixed together to form a stable and closed space.

[0036] The front side of the housing, namely the front plate 1, faces the operator during use.

[0037] The back side of the housing is a rear plate 2, which corresponds to the front plate 1. A hanging structure is provided on the rear plate 2, which is mainly used to hang the range hood casing and the entire range hood on a wall.

[0038] The left side panel 3 and the right side panel 4 are respectively located on both sides of the shell and are arranged opposite to each other. Their function is to expand the housing space of the shell and enhance the structural stability. Sometimes, lateral control keys or interfaces are also provided to meet the operation requirements at different angles.

[0039] The top plate 5 and the bottom plate 6 are respectively located above and below the shell and are arranged opposite to each other. Their functions are to expand the housing space of the shell and enhance the structural stability.

[0040] These six panels are seamlessly connected through precise processing technology and assembly process, which not only builds a highly practical three-dimensional space, but also fully considers factors such as product functional layout, thermodynamic design, and ergonomics, making the entire shell structure both durable and providing a good user experience. At the same time, the lines between the panels transition smoothly, demonstrating a harmonious and unified design aesthetic concept.

[0041] The range hood casing is formed by a front panel 1, a rear panel 2, a left panel 3, a right panel 4, a top panel 5 and a bottom panel 6 which are delicately assembled. Each part is made of thin plate material and has the characteristics of lightness and high strength.

[0042] Firstly, the front panel 1 is the part that the user directly faces and interacts with. Therefore, its thin plate material must take into account both aesthetics and functionality. It may be finely polished, printed or coated to ensure visual effects and tactile experience while ensuring sufficient strength to support built-in components.

[0043] The rear plate 2 of the range hood housing plays a vital role in the overall structure. It is the core component for the range hood to be firmly installed, and is mainly used for bearing weight and realizing safe suspension of the equipment.

[0044] The back panel 2 is usually made of thick and high-strength metal materials, such as high-quality stainless steel, cold-rolled steel plates or reinforced alloy plates. These materials can ensure that the back panel 2 has sufficient rigidity and load-bearing capacity, and can remain stable even when subjected to the dynamic load generated by the weight of the range hood and suction during long-term use, thereby preventing deformation or damage due to insufficient load-bearing capacity.

[0045] In terms of design, the back plate 2 is usually provided with embedded parts or hanging holes, which are key points for fixing or hooking to the wall. The position accuracy of the hanging holes is very high and must be designed strictly in accordance with mechanical principles and safety standards to ensure that the range hood is balanced and stable in the hanging state without the risk of shaking or falling due to uneven force.

[0046] In addition, the rear panel 2 may also include ventilation and exhaust channels and noise reduction designs to ensure smooth exhaust of oil smoke and reduce the impact of operating noise on the home environment. Some models of range hoods may also have inspection ports or disassembly designs on the rear panel 2 to facilitate later maintenance and troubleshooting.

[0047] Therefore, the rear plate 2 of the range hood housing is not only the basis for the load-bearing suspension of the equipment, but also a key structural component to ensure the normal operation of the equipment and extend its service life.

[0048] The left side plate 3 and the right side plate 4 serve as the side wings of the shell. They are close to the main body of the device and play the role of surrounding and supporting the internal components. The selection of thin plate materials must take into account factors such as pressure resistance, durability and electromagnetic shielding performance to ensure that the equipment can maintain a stable operating state under various environmental conditions.

[0049] The top plate 5 and the bottom plate 6 are used to cover and support the upper and lower ends of the device. The thin plate design of the two is conducive to optimizing space utilization, reducing thickness, and enhancing portability. At the same time, the thin plate material must have good shock-proof and buffering capabilities to prevent accidental falls or collisions from causing damage to the device.

[0050] In short, this hexahedral shell structure constructed of thin plates combines practicality, aesthetics and technology, fully demonstrating modern design's understanding and grasp of the efficient use of space and the pursuit of light and fashionable trends.

[0051] In a preferred embodiment, the front end portion of the left side panel 3 is folded to the right to form a left front connecting edge 31, and the edge of the left front connecting edge 31 is recessed inward to form a left front sunken platform 32; the front end portion of the right side panel 4 is folded to the left to form a right front connecting edge 41, and the edge of the right front connecting edge 41 is recessed inward to form a right front sunken platform 42; the front end portion of the top panel 5 is folded downward to form a top front connecting edge 51, and the edge of the left front connecting edge 31 is recessed inward to form a top front sunken platform 52; the front end portion of the bottom panel 6 is folded upward to form a bottom front connecting edge 61; wherein, the front panel 1 abuts against the front sides of the top front sunken platform 52, the left front sunken platform 32 and the right front sunken platform 42, and the top of the front panel 1 is detachably connected to the top front sunken platform 52, and the bottom of the front panel 1 is embedded in the rear side of the bottom front connecting edge 61.

[0052] The left front connecting edge 31, the left front sink 32, the right front connecting edge 41, the right front sink 42, the top front connecting edge 51, the top front sink 52 and the bottom front connecting edge 61 can be formed by processing techniques such as stamping and bending. Specifically, by means of a pre-designed mold or tool, the edge of the corresponding plate is bent inwardly according to a predetermined contour line or bent after cutting, thereby forming an inwardly concave area, i.e., a sink, at the edge of the plate. These sinks not only provide precise positioning and support points for the mutual embedding or connection of each plate, but also enhance the stability of the connection part by closely fitting each adjacent connecting edge and sink.

[0053] In addition, the left front connecting edge 31, the right front connecting edge 41, the top front connecting edge 51, and the bottom front connecting edge 61 are arranged flush, and the left front sunken platform 32, the right front sunken platform 42, and the top front sunken platform 52 are also arranged flush. This means that these parts form a flat and continuous front edge structure after assembly, which improves the overall aesthetic appearance and sealing of the range hood housing. Such a design allows the front panel 1 to be firmly embedded or connected to other components, thereby enhancing the structural strength and stability of the housing.

[0054] In this embodiment, the top of the left side plate 3 and the top of the right side plate 4 are connected to the top plate 5 by energy storage welding. The top of the left side plate 3 and the bottom of the right side plate 4 are connected to the bottom plate 6 by laser welding. The rear plate 2 is connected to the left side plate 3, the right side plate 4, the top plate 5 and the bottom plate 6 by fasteners. The top of the front plate 1 is connected to the top plate 5 by fasteners, and the bottom of the front plate 1 is inlaid with the bottom plate 6.

[0055] Among them, energy storage welding is a resistance welding technology. Its basic working principle is to store electrical energy in a capacitor in advance, and then quickly release the stored energy in a short time to form a high-intensity current pulse. This current pulse heats the contact point between the weldment and the welding material in an extremely short time (usually at the millisecond level), causing it to quickly heat up to a molten state, thereby achieving metallurgical bonding between the metals.

[0056] Energy storage welding is widely used in automotive parts manufacturing, precision instrument manufacturing, aerospace and other fields. It is particularly suitable for welding materials such as low-carbon steel, stainless steel, copper and alloys. It shows significant advantages especially in situations requiring high-quality welds, low heat input and small deformation. Products welded by energy storage have greater overall strength.

[0057] Laser welding is a welding technology that uses a high-energy-density laser beam as a heat source. By focusing the laser beam and irradiating it onto the joint surface of the materials to be welded, the materials absorb the laser energy in a short period of time and quickly heat up to a molten state. Subsequently, under the guidance of the laser beam, the molten materials mix and solidify to form a continuous and strong weld, ultimately achieving a connection between the same or different materials.

[0058] Laser welding has many advantages, such as fast welding speed, high precision, small deformation, large aspect ratio, narrow heat-affected zone, a wide range of weldable materials (including refractory metals and non-metallic materials), and can be automated and remotely operated. This technology is widely used in many fields such as automobile manufacturing, aerospace, shipbuilding, medical equipment, microelectronics, and energy equipment manufacturing. Products welded by laser have a neat appearance.

[0059] The materials used for the range hood housing mainly include the following:

[0060] 1. Stainless steel: This is one of the most commonly used materials for range hood housings. It is favored for its good corrosion resistance, high temperature resistance, and easy cleaning and maintenance. The stainless steel housing is not only strong and durable, but also has a bright appearance. It is often used for decorative pipes, panels, and inner cavities.

[0061] 2. Aluminum alloy: Aluminum alloy is light and has excellent thermal conductivity. It is suitable for small range hoods that need to dissipate heat quickly, especially in kitchen environments with limited space, and can effectively improve the exhaust efficiency.

[0062] 3. Cold-rolled steel plate: The shell made of cold-rolled steel plate is treated with surface spraying to give it good corrosion resistance, while also having a certain hardness and toughness. It also has a relatively moderate cost and a long service life.

[0063] 4. Glass material: Tempered glass panels have been increasingly used in range hood casings in recent years. They have extremely high mechanical strength and heat shock resistance. When broken, they form fragments without sharp angles, which makes them safer. The transparent or translucent texture can enhance the overall design of the kitchen.

[0064] 5. Piano lacquer panel: The panel treated with piano lacquer technology is rich in color, high gloss, wear-resistant and dirt-resistant, easy to clean, giving people a high-end and luxurious feeling.

[0065] 6. Alloy panel: This type of panel is mostly made of special alloy material and has the characteristics of good sealing, durability, bending strength and surface aesthetics.

[0066] To sum up, the range hood shell can be made of different materials according to brand positioning, design style and consumer demand to achieve the best performance and aesthetic effect.

[0067] The smoke outlet of the range hood, also known as the air intake or air inlet, is the key part of the entire range hood system that is closest to the cooking source. Its structural design directly affects the efficiency and effect of oil fume absorption. The following is the detailed structure and characteristics of the smoke outlet:

[0068] Structural form: The opening of the smoke outlet is generally designed to be a long strip or ring with a certain width, and some even have an inclined or corrugated structure, in order to increase the contact area and guide the flow direction of the oil smoke. The surrounding area of ​​the smoke outlet is often made of smooth and easy-to-clean materials, such as stainless steel or glass, so that oil stains are not easy to adhere.

[0069] Oil guide groove and oil net design: The inside or front of the smoke outlet is usually equipped with an oil guide groove and oil net structure. The oil net is made of a fine metal mesh or special material. Its function is to initially separate the oil smoke entering the range hood, intercept large particles of grease dripping back to the cooking area, and smaller smoke particles can enter the suction system through the oil net. The oil guide groove is located below the oil net to collect and concentrate grease for easy cleaning.

[0070] Attraction guiding design: The shape and position design of the smoke outlet helps to form a negative pressure area, using the strong suction force generated by the fan to quickly and effectively suck the oil smoke generated during cooking into the range hood. The smoke outlet design of some advanced models also includes an arc-shaped or specific angle smoke hood. Such a structure can better wrap the oil smoke above the pot, reduce the diffusion of oil smoke, and improve the oil smoke absorption rate.

[0071] Adjustable design: Some new models of range hoods have retractable or adjustable functions, which can flexibly adjust the position and size of the smoke outlet according to the size of the cooking utensils and the user's habits to adapt to different cooking scenes and further improve the smoke extraction efficiency.

[0072] Safety and hygiene considerations: Fire-retardant materials are often used around the smoking port to ensure safety during cooking. At the same time, in order to avoid accidental touch by hands during cooking, the edges of the smoking port may be rounded to reduce the risk of burns.

[0073] In this embodiment, a main smoking opening 7 is provided on the front plate 1 , and an auxiliary smoking opening 8 is provided on the bottom plate 6 .

[0074] There is one main inlet 7 disposed in the middle of the front plate 1 . There are two auxiliary inlet 8 , namely a first auxiliary inlet 81 and a second auxiliary inlet 82 . The first auxiliary inlet 81 is disposed near one side of the bottom plate 6 . The second auxiliary inlet 82 is disposed near the other side of the bottom plate 6 .

[0075] Preferably, the area of ​​the main smoking port 7 is S1: the area of ​​the first auxiliary smoking port 81 is S2: the area of ​​the second auxiliary smoking port 82 is S3, wherein the golden smoking ratio of S1:S2:S3=3:1:1 greatly reduces the fume escape rate. The area here refers to the effective area, that is, the area of ​​the multiple holes included in each smoking port.

[0076] A main smoke inlet 7 is provided on the front plate 1, which is usually located in front of the stove, so as to capture the oil smoke generated during cooking more directly and effectively, reduce the diffusion of oil smoke in the kitchen, and greatly improve the air quality of the kitchen. An auxiliary smoke inlet 8 is added to the bottom plate 6 to further enhance the absorption effect of oil smoke, especially for the oil smoke overflowing from the side of the pot or the oil smoke splashed during the cooking process, which plays an auxiliary role in suction and ensures that the oil smoke is sucked into the range hood for treatment without omission. The double smoke inlet design adapts to a variety of cooking habits and cuisines. No matter what cooking method is used, it can absorb oil smoke to the greatest extent, improving the scope of application and working efficiency of the range hood.

[0077] In a preferred embodiment, the rear panel 2 is detachably connected to the left panel 3 , the right panel 4 , the top panel 5 and the bottom panel 6 .

[0078] Specifically, the rear plate 2 is connected to the left plate 3, the right plate 4, the top plate 5 and the bottom plate 6 by fasteners. The selection of fasteners depends on the structural requirements and material properties, and common fasteners include but are not limited to screws, bolts, rivets, buckles, etc.

[0079] Screws or bolts are passed through the holes of the back plate 2 and the corresponding left plate 3, right plate 4, top plate 5, and bottom plate 6, and are locked with nuts; or self-tapping screws are directly screwed into the plate to fix it. Rivets are used to permanently connect two or more layers of plate by hitting or hydraulic pressure at the overlap between the back plate 2 and other panels. In some occasions where rapid assembly and disassembly are required, quick-install fasteners such as snaps may be used.

[0080] During the connection process, in order to ensure the sealing and stability of the shell, the fasteners must not only be installed according to the predetermined position and quantity, but also be tightened in accordance with the corresponding torque requirements to ensure that there is no looseness or gap between the panels, while avoiding deformation of the panels due to over-tightening.

[0081] This structural design can not only ensure the safe packaging of the internal components of the box, but also resist the influence of external environmental factors, such as waterproof, dustproof, and earthquake-resistant. It is especially important for household appliances such as range hoods, and can ensure their long-term stable operation. At the same time, it simplifies the production and assembly process and reduces the difficulty of maintenance.

[0082] The top of the front plate 1 is connected to the top plate 5 through a fastener, and the bottom of the front plate 1 is inlaid with the bottom plate 6.

[0083] Specifically, the top edge of the front panel 1 is provided with a preset hole or mounting groove, which matches the corresponding position of the top panel 5. The fastener plays a key role in connection, and may be a mechanical connection method such as screws and bolts. The fastener is passed through the hole on the top of the front panel 1 and screwed into the threaded hole reserved inside the top panel 5. The nut is tightened with appropriate force to ensure a stable connection between the front panel 1 and the top panel 5, prevent loosening or falling off, and ensure the overall structural strength of the device.

[0084] As for the connection between the bottom of the front panel 1 and the bottom panel 6, an inlay structure is adopted, which is a smoother and more integrated design. The bottom edge of the front panel 1 is designed to be embedded in the groove of the bottom panel 6. The two are tightly fitted through precise size matching, without obvious gaps, which enhances the overall sealing and aesthetics. The inlay process may be combined with special connection techniques, such as snap-on, slot-on or adhesive, to ensure that the front panel 1 and the bottom panel 6 form a firm and smooth connection without exposing fasteners.

[0085] This structural design not only meets the functional requirements of the device and ensures the safe packaging of internal components, but also achieves a neat and integrated appearance, improving the user experience and the quality of the device.

[0086] Figure 1 is a schematic diagram of a range hood according to an exemplary embodiment; Figure 2 FIG. 1 is an exploded schematic diagram of a range hood according to an exemplary embodiment. Figure 1 and Figure 2 As shown, a range hood according to an embodiment of the utility model comprises a range hood housing as described in the above embodiment, a flap 9 which can be flipped to open or close a main smoke outlet 7 is arranged on the front side of the range hood housing, and the top of the flap 9 is hingedly connected to the top of the range hood housing.

[0087] The user can open or close the flap 9 according to the amount of oil smoke generated during cooking, thereby adjusting the opening size of the main smoke inlet 7 to achieve flexible control of the amount of oil smoke inhaled. When the amount of oil smoke is large, it can be fully opened to enhance the suction force, and when the amount of oil smoke is small, it can be partially closed to save energy and reduce noise.

[0088] The design of the flap 9 makes it more convenient to clean the range hood. The user can easily flip open the flap 9 to directly clean the oil stains and dust around the main smoke inlet, and maintain the cleanliness and efficient operation of the machine without disassembling complex parts.

[0089] When the flap 9 is closed, the appearance of the range hood is more unified and harmonious, improving the overall aesthetics of the kitchen. At the same time, the closed flap 9 can also prevent unnecessary air circulation during cooking, keeping the kitchen environment clean and tidy. In addition, for kitchens with limited space, the flap 9 can reduce the occupied forward space when closed, making it easier to install other kitchen utensils or store items under the range hood.

[0090] The closing function of the flap 9 can be used as a safety precaution when not in use to prevent foreign objects from accidentally entering the smoking pipe and reduce the risk of children coming into contact with the heat source.

[0091] In another preferred embodiment, a push rod is detachably fixed to the bottom of the range hood casing, an opening 10 is provided on the front panel 1, the top of the push rod can extend out of the opening 10 and be detachably connected to the back of the flap 9, and the push rod can push the flap 9 to flip.

[0092] The detachable connection here can be a hinge connection, which allows the two parts to move within a certain angle range through the hinge shaft, making it easy to open and close.

[0093] The connection between the push rod detachably fixed at the bottom and the opening 10 on the front plate 1 and the flap 9 realizes an ingenious mechanism of automatic 9 control of the flap 9, and its effects and functions include:

[0094] Convenient operation: Through the connection between the push rod and the flap 9, the user can easily control the opening and closing of the flap 9. Whether operating the electric push rod manually or through the control panel of the range hood, the flap 9 can be quickly flipped, which improves the convenience of use.

[0095] Precise control: The linear motion of the push rod can be accurately transmitted to the flap 9, ensuring that the opening and closing angles of the flap 9 are stable and consistent, avoiding the inaccuracy that may be caused by manual operation, and improving the use efficiency and performance of the range hood.

[0096] Easy maintenance: The detachable design of the push rod makes cleaning and maintenance easier. When you need to clean the inside of the range hood or maintain the flap mechanism, you can easily detach the push rod for a thorough inspection and cleaning, thereby extending the service life of the range hood.

[0097] Modular design: This structure supports modular assembly. The actuator, as an independent component, can be replaced or upgraded according to different needs, which improves the adaptability and scalability of the product.

[0098] Space optimization: The push rod is installed at the bottom of the casing, which makes full use of the internal space of the range hood without taking up additional external space, making the range hood design more compact and suitable for various kitchen installation environments.

[0099] Safe and reliable: The detachable connection design between the push rod and the flap 9 ensures safe operation and avoids accidental injuries caused by loose fixation or improper operation. At the same time, the linear motion of the push rod is stable and reliable, reducing the risk of mechanical failure.

[0100] In summary, this design not only improves the operation and maintenance convenience of the range hood, but also demonstrates the comprehensive consideration of modern home appliance design for user experience and product performance through modularization, space optimization, and safe and reliable design ideas.

[0101] In addition to the range hood housing, it also includes at least the following structures:

[0102] Motor: The motor is the core component of the range hood and is responsible for driving the fan wheel to rotate. It usually uses a fully enclosed single-phase capacitor-operated asynchronous motor to ensure stable operation in a humid environment.

[0103] Wind wheel (fan): The wind wheel is usually of centrifugal design, die-cast from alloy aluminum plate or other high-strength materials, and installed on the motor shaft. The wind wheel rotates at high speed to generate strong suction, sucking the oil smoke into the range hood.

[0104] Volute: The volute is adjacent to the wind wheel, and a spiral channel is designed inside it, so that the oil smoke extracted by the wind wheel can separate some grease under the action of centrifugal force and be discharged smoothly along the guide of the volute, while the condensed grease is deposited on the inner wall of the volute.

[0105] Check valve: The check valve is installed between the volute and the exhaust pipe to prevent the backflow of outside air and ensure that the smoke can only be discharged in one direction.

[0106] Air guide plate: The air guide plate is usually combined with the panel to form a smoke collection hood. The angle can be adjusted to help guide and gather the rising oil smoke and improve the efficiency of oil smoke extraction.

[0107] Panel: As the exposed part of the range hood, the panel may be equipped with operating interfaces such as control buttons and LED display screens. It is also part of the fume hood and participates in the capture of oil fume.

[0108] Oil screen / filter: The oil screen is located near the smoke outlet and is composed of dense mesh holes. It is used to initially separate the grease particles in the smoke and prevent a large amount of grease from entering the impeller and volute.

[0109] Oil collecting and draining device: includes an oil collecting box or an oil collecting cup, which is used to collect the separated grease for easy regular cleaning.

[0110] Lighting device: provides lighting function, usually some energy-saving LED bulbs, installed inside the housing to illuminate the cooking area.

[0111] Exhaust pipe: connects the volute inside the range hood and the exhaust outlet outside the house to ensure that the fumes are discharged outdoors.

[0112] Power switch and power cord: control the opening and closing of the range hood, and the power cord is responsible for connecting to the household power system.

[0113] Through the coordinated work of the above components, the range hood can promptly absorb oil fumes during the cooking process, purify the indoor air, and keep the kitchen environment clean and fresh.

[0114] In the embodiments of the present invention, the term "multiple" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0115] In the description of the embodiments of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0116] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0117] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A range hood casing, characterized in that: include: A front plate (1), a rear plate (2), a left side plate (3), a right side plate (4), a top plate (5) and a bottom plate (6); The edges of two adjacent plates are connected to each other to form a range hood casing; wherein the top of the left side plate (3) is welded to the top plate (5), and the top of the right side plate (4) is welded to the top plate (5); the bottom of the left side plate (3) is welded to the bottom plate (6), and the bottom of the right side plate (4) is welded to the bottom plate (6); the top of the front plate (1) is detachably connected to the top plate (5), and the bottom of the front plate (1) is inlaid with the bottom plate (6); The front plate (1) is provided with a main smoking opening (7); The bottom plate (6) is provided with an auxiliary smoking port (8).

2. The range hood housing according to claim 1, characterized in that: There is one main smoking opening (7) arranged in the middle of the front plate (1); there are two auxiliary smoking openings (8), namely a first auxiliary smoking opening (81) and a second auxiliary smoking opening (82); the first auxiliary smoking opening (81) and the second auxiliary smoking opening (82) are arranged on both sides below the main smoking opening (7), respectively.

3. The range hood housing according to claim 2, characterized in that: The area of ​​the first auxiliary smoking opening (81) is the same as the area of ​​the second auxiliary smoking opening (82).

4. A range hood casing according to claim 2 or 3, characterized in that: The area of ​​the main smoking opening (7) is S1, the area of ​​the first auxiliary smoking opening (81) is S2, and the area of ​​the second auxiliary smoking opening (82) is S3; Among them, S1:S2:S3=3:1:

1.

5. The range hood housing according to claim 2, characterized in that: The front end of the left side plate (3) is folded to the right to form a left front connecting edge (31), and the edge of the left front connecting edge (31) is recessed inwards to form a left front sink (32); the front end of the right side plate (4) is folded to the left to form a right front connecting edge (41), and the edge of the right front connecting edge (41) is recessed inwards to form a right front sink (42); the front end of the top plate (5) is folded downwards to form a top front connecting edge (51), and the edge of the left front connecting edge (31) is recessed inwards to form a top front sink (52); the front end of the bottom plate (6) is folded upwards to form a bottom front connecting edge (61); wherein the front plate (1) abuts against the front sides of the top front sink (52), the left front sink (32) and the right front sink (42), and the top of the front plate (1) is detachably connected to the top front sink (52), and the bottom of the front plate (1) is embedded in the rear side of the bottom front connecting edge (61).

6. The range hood casing according to claim 5, characterized in that: The left front connecting edge (31), the right front connecting edge (41), the top front connecting edge (51), and the bottom front connecting edge (61) are arranged flush with each other, and the left front sunken platform (32), the right front sunken platform (42), and the top front sunken platform (52) are also arranged flush with each other.

7. The range hood housing according to claim 1, characterized in that: The welding method between the top of the left side plate (3) and the top plate (5) and the welding method between the top of the right side plate (4) and the top plate (5) are both energy storage welding; the welding method between the bottom of the left side plate (3) and the bottom plate (6) and the welding method between the bottom of the right side plate (4) and the bottom plate (6) are both laser welding.

8. The range hood housing according to claim 1, characterized in that: The rear plate (2) is detachably connected to the left side plate (3), the right side plate (4), the top plate (5) and the bottom plate (6).

9. A range hood, characterized in that: It comprises a range hood casing as claimed in claims 1 to 8, wherein a flap (9) capable of flipping open or close the main smoke inlet (7) is arranged on the front side of the range hood casing, and the top of the flap (9) is hingedly connected to the top of the range hood casing.

10. The range hood according to claim 9, characterized in that: A push rod is detachably fixed at the bottom of the range hood casing, an opening (10) is provided on the front panel (1), the top of the push rod can extend out of the opening (10) and be detachably connected to the back of the flap (9), and the push rod can push the flap (9) to flip.

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