Ultra-thin range hood

Abstract

The ultra-thin range hood comprises a box body and a fan, an air inlet and an air outlet are formed in the box body, and the fan is arranged in the box body; the fan comprises a volute, a wind wheel and a motor, the wind wheel is arranged in the volute, the motor is arranged in the wind wheel, and a rotating shaft of the motor is connected with the wind wheel; the volute comprises a volute front plate, a volute side plate and a volute rear plate, and a motor shell of the motor and the volute rear plate are integrally formed. The ultra-thin range hood provided by the utility model is thin in thickness and small in installation occupied space.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, specifically to an ultra-thin range hood. Background Technology

[0002] As people's living standards improve, the demand for protection from cooking fumes is also increasing, making range hoods an indispensable appliance for purifying the kitchen environment. A range hood typically consists of a housing and a fan and motor installed inside. However, in current market models, the fan impeller is usually located on the side of the motor, with each occupying a certain amount of horizontal space. To accommodate the fan and motor, the housing needs to be quite thick, resulting in a large overall size and requiring ample installation space. Furthermore, the increased thickness and surface area of ​​the housing necessitate the use of more materials, leading to higher manufacturing costs. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, this utility model provides an ultra-thin range hood, which is thin, occupies less installation space, and saves manufacturing costs.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an ultra-thin range hood, including a housing and a fan, the housing is provided with an air inlet and an air outlet, and the fan is located inside the housing; the fan includes a volute, a impeller and a motor, the impeller is located inside the volute, the motor is located inside the impeller, and the motor shaft is connected to the impeller; the volute includes a front plate, a side plate and a rear plate, and the motor housing is integrally formed with the rear plate.

[0005] This technical solution provides an ultra-thin range hood that, by placing the motor inside the impeller and vertically overlapping the impeller and motor, and by integrating the motor housing with the fan's volute rear plate, reduces the horizontal space required for motor and impeller installation, significantly reducing the thickness of the casing and making the entire product thinner. This facilitates installation and reduces product costs. Furthermore, integrating the motor housing with the fan's volute rear plate reduces the number of parts, making assembly and disassembly easier and thus lowering processing costs.

[0006] In a preferred embodiment, the housing includes a front panel and a rear panel. A volute side panel is located between the front and rear panels. The portion of the front panel enclosed by the volute side panel is the volute front panel, and the volute rear panel is located on the rear panel. The volute front panel, volute rear panel, and volute side panel form an air duct cavity within the volute. The air duct cavity communicates with an air inlet and an air outlet, respectively. The air inlet is located on the volute front panel, and the air outlet is located on the top panel of the housing. This technology uses the front and rear panels of the range hood instead of the volute front and rear panels of the fan, resulting in a thinner and smaller overall product, which facilitates installation and effectively saves manufacturing costs.

[0007] In a preferred embodiment, the wind turbine includes a front plate, a middle plate, a rear plate, and multiple blades. The blades pass through the edge of the middle plate and are fixed to the front and rear plates at their respective ends. The middle plate protrudes forward and has a bushing with mounting holes at its central axis. The rotating shaft passes through the mounting holes and is fixedly connected to the bushing via a wind turbine nut. The blades are arranged around the motor. This wind turbine, with its front plate, middle plate, rear plate, and multiple blades, helps to reduce its size. Furthermore, the wind turbine connects to the motor shaft through the mounting holes in the protruding part of the middle plate, and the motor housing is located at the rear of the middle plate, allowing the motor and wind turbine to overlap to some extent in the vertical direction, thus ensuring a thin and small overall size.

[0008] In a preferred embodiment, a fume hood is provided on the upper part and both sides of the front panel to concentrate the oil fumes and draw them into the air inlet; a removable condenser plate is provided in front of the air inlet, which is used to filter oil fumes, improves the oil fume separation efficiency, protects the environment and the interior of the ultra-thin range hood, and is removable for cleaning and easy to use; an oil filter screen is provided on the air inlet to play a secondary filtering role for oil fumes.

[0009] In a preferred embodiment, an oil drain hole is provided at the bottom of the air duct cavity, and several oil drain holes are provided on the bottom plate of the housing; a removable oil cup is provided at the bottom of the housing. In this technology, the oil thrown off by the impeller flows into the oil cup through the oil drain hole and the oil drain hole. The oil cup is removable for easy cleaning.

[0010] In a preferred embodiment, a check valve is provided at the air outlet. When the ultra-thin range hood is working, the two valve plates of the check valve open upward under the action of the airflow to release the fumes. When not working, the valve plates naturally fall back down to close, preventing the fumes from flowing back into the flue.

[0011] In a preferred embodiment, the smoke collection hood includes an upper smoke collection hood and two side smoke collection hoods. The front of the upper smoke collection hood is provided with a control panel, which is electrically connected to a motor, making it convenient for users to operate the ultra-thin range hood.

[0012] In a preferred embodiment, the bottom of the upper fume hood is also equipped with a lighting lamp, which is electrically connected to the control panel for illumination.

[0013] In a preferred embodiment, a power supply box is also provided on the top of the enclosure, which is connected to both the motor and the control panel. The power supply box is used to connect to an external power source to power the motor and the control panel.

[0014] In a preferred embodiment, both the condenser plate and the control panel are made of glass, which has a smooth surface and is easier to clean.

[0015] As can be seen from the above technical solution, compared with the prior art, the beneficial effects of this utility model are:

[0016] An ultra-thin range hood, by placing the motor inside the impeller, vertically overlapping the impeller and motor, and integrating the motor housing with the rear plate of the fan's volute, reduces the horizontal space required for motor and impeller installation, significantly reducing the thickness of the casing and making the entire product thinner. This facilitates installation and reduces product costs. Furthermore, integrating the motor housing with the rear plate of the fan's volute reduces the number of parts, making assembly and disassembly easier and reducing manufacturing costs. Moreover, by using the front panel of the range hood instead of the front plate of the fan's volute, with the rear plate of the volute located on the rear panel, the front plate, rear plate, and side plates of the volute form an internal air duct cavity. The impeller and motor are directly installed within this air duct cavity, eliminating the need to reserve space for the fan's volute, further reducing the overall product thickness.

[0017] In addition, other advantages of this invention will be set forth in the description which follows, in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the ultra-thin range hood of this utility model;

[0020] Figure 2 This is an exploded view of the ultra-thin range hood of this utility model;

[0021] Figure 3 This is a front view of the ultra-thin range hood housing of this utility model;

[0022] Figure 4 This is a front view of the ultra-thin range hood of this utility model;

[0023] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure at section AA of the ultra-thin range hood;

[0024] Figure 6 This is a top view of the ultra-thin range hood of this utility model;

[0025] Explanation of reference numerals in the attached diagram: 1. Housing; 2. Motor; 3. Impeller; 4. Smoke hood; 5. Condenser plate; 6. Oil filter; 7. Oil cup; 8. Control panel; 9. Lighting; 10. Air duct cavity; 11. Front panel; 12. Rear panel; 13. Volute side panel; 14. Air inlet; 15. Air outlet; 16. Opening; 17. Check valve; 18. Power supply box; 21. Motor housing; 22. Stator; 23. Rotor; 24. Bearing; 30. Impeller nut; 31. Front plate; 32. Middle plate; 33. Rear plate; 34. Blade. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] Reference Figure 1-6 This invention describes an ultra-thin range hood according to an embodiment of the present invention.

[0029] In one embodiment, such as Figure 1-6 As shown, an ultra-thin range hood includes a housing 1 and a fan. The housing 1 is provided with an air inlet 14 and an air outlet 15. The fan is located inside the housing 1. The fan includes a volute, a impeller 3 and a motor 2. The impeller 3 is located inside the volute, and the motor 2 is located inside the impeller 3. The rotating shaft of the motor 2 is connected to the impeller 3. The volute includes a front plate, a side plate 13 and a rear plate. The motor housing 21 is integrally formed with the rear plate.

[0030] The motor 2 includes a stator 22 and a rotor 23. The stator 22 is located in the inner cavity of the motor housing 21, and the rotor 23 is located in the shaft hole of the stator 22 with a rotating shaft at the central shaft. One end of the rotating shaft is installed in the rear end of the inner cavity of the motor housing 21 through a bearing 24, and the other end extends out of the motor housing 21 through the front end through hole, and is fixedly connected to the impeller 3 through the impeller nut 30.

[0031] In practical implementation, motor 2 can be a plastic-encapsulated motor, with the motor housing 21 and stator 22 integrated into one piece. The impeller 3 is arranged around the side wall of the motor housing 21, which is also a plastic-encapsulated housing. Because plastic-encapsulated motors have good waterproof and corrosion-resistant properties, they can effectively prevent the penetration of self-cleaning water stains and oil, resulting in a longer service life. When motor 2 is working, the shaft drives the impeller 3 to rotate, providing airflow for the range hood.

[0032] As one embodiment of the above-described embodiment, the motor housing 21 may be disposed on the rear panel 12 of the housing 1. In this case, the rear panel 12 may be provided with an opening 16 for inserting a fan into the housing, and the opening 16 may be closed by the rear wall of the motor housing 21.

[0033] In this embodiment, the housing includes a front panel 11 and a rear panel 12. A volute side plate 13 is disposed between the front panel 11 and the rear panel 12. The portion of the front panel 11 surrounded by the volute side plate 13 is the volute front plate, and the volute rear plate is disposed on the rear panel 12. The volute front plate, the volute rear plate, and the volute side plate form an air duct cavity 10 inside the volute. The air duct cavity 10 is connected to the air inlet 14 and the air outlet 15, respectively. The air inlet 14 is disposed on the volute front plate, and the air outlet 15 is disposed on the top plate of the housing 1.

[0034] The rear panel 12 has an opening 16 for inserting the motor 2 and the impeller 3 into the air duct cavity 10, and the rear wall of the motor 2 housing closes the opening 16.

[0035] The housing 1 is a cuboid, with a cavity enclosed by front and rear panels and four side panels (top, bottom, left, and right). The distance between the front and rear panels is the thickness of the range hood. In traditional range hoods, the internal cavity often requires a large width to accommodate the fan casing. However, the ultra-thin range hood of this application directly uses the panels of the housing 1 itself as the front and rear of the fan casing structure, simplifying the traditional fan casing structure and integrating it into the outer shell of the housing 1. This eliminates the need for reserved width for the casing, resulting in a thinner overall product. The motor 2 can be a plastic-sealed motor, which has a simple structure and is easy to install. Moreover, the rear wall of the motor 2's outer shell seals the opening 16 on the rear panel 12 of the housing 1. The front end of the duct cavity 10 is the air inlet 14 connecting to the outside, while the rear opening 16 is sealed by the rear wall of the motor housing 21. The top has an air outlet 15 connecting to the top plate of the housing 1. The impeller 3 may include a mounting plate and multiple blades 34 arranged around the motor. The axis of the mounting plate is connected to the rotating shaft of the motor 2. Under the drive of the motor 2, the blades 34 are rotated to generate wind. The front of the housing 1 faces the stove, so the air inlet 14 is opened on the front panel 11 to facilitate the intake of oil fumes.

[0036] In specific implementation, the housing 1 may be provided with one or more air duct cavities 10. The air inlet 14 is preferably located on the front panel 11 directly opposite the impeller 3 in the air duct cavity 10 to ensure that the air force is strong enough. The number of air inlets 14 can be one or more, as long as the oil fumes can enter the air duct cavity 10 smoothly. The shape of the air inlet 14 can be circular, rectangular or rhomboid, or other shapes. This embodiment does not limit this.

[0037] In this embodiment, the impeller 3 includes a front plate 31, a middle plate 32, a rear plate 33, and multiple blades 34. The middle part of the multiple blades 34 passes through the edge of the middle plate 32 and the front and rear ends are respectively fixed to the front plate 31 and the rear plate 33. The middle part of the middle plate 32 protrudes forward and a bushing with a mounting hole is provided at the central shaft position. The rotating shaft passes through the mounting hole and is fixedly connected to the bushing through the impeller nut 30. The multiple blades 34 are arranged around the motor 2.

[0038] Among them, the middle plate 32 is the mounting plate for mounting the wind turbine 3 onto the shaft of the motor 2, while the front plate 31 and the rear plate 33 serve as mounting brackets for the blades 34.

[0039] In practice, the rotating shaft of motor 2 drives the central plate 32 to rotate, which in turn drives the blades 34 to rotate, generating wind power and drawing the oil fumes from the air inlet 14 into the air duct cavity 10. Since the motor housing 21 is located at the rear of the central plate 32, the motor 2 and the impeller 3 overlap to a certain extent in the vertical direction, thus ensuring that the whole machine is thin and small in size.

[0040] In this embodiment, a fume hood 4 is provided on the upper end and both sides of the front panel 11, a removable condenser plate 5 is provided in front of the air inlet 14, and an oil filter 6 is provided on the air inlet 14. The fume hood 4 includes a front protrusion at the upper end of the front panel 11 of the housing 1 and protrusions on both sides. The protrusions form a fume collection area to ensure that the oil fumes are concentrated and sucked away from the air inlet 14. The condenser plate 5 can be made of glass with a smooth surface for easy cleaning. The oil filter 6 can be made of metal or other easy-to-clean materials.

[0041] Furthermore, an oil drain hole is provided at the bottom of the air duct cavity 10, and several oil drain holes are provided on the bottom plate of the housing 1; a removable oil cup 7 is provided at the bottom of the housing 1.

[0042] The oil cup 7 is used to collect oil flowing down through the oil drain hole at the bottom of the air duct cavity 10 and the oil drain hole of the housing 1. As one embodiment of this invention, the oil cup 7 can be set along the bottom of the housing 1, and the length of the oil cup 7 is equal to the length of the housing 1, so that the oil cup 7 has a large capacity, which can reduce the frequency of daily emptying and improve the convenience of use; the oil drain hole can be one or more through holes located at the lowest point of the air duct cavity 10, and there can be multiple oil drain holes, which are evenly distributed on the bottom plate of the housing 1.

[0043] In practice, the fumes first encounter the condenser plate 5, and part of them condense into grease and remain on the condenser plate 5. The fumes that are not blocked continue to pass through the oil filter screen 6, and part of them are stuck on the oil filter screen 6. The remaining fumes are drawn into the high-speed rotating impeller 3, and the grease adheres to the blades 34 and is then thrown onto the volute side plate 13 of the air duct cavity 10. Finally, they fall into the oil cup 7 through the oil drain hole and the oil discharge hole.

[0044] In this embodiment, the air outlet 15 is equipped with a check valve 17. In practice, the two valve plates of the check valve 17 open upward under the action of wind to release the fumes. When not in operation, the valve plates naturally fall down and close to prevent the fumes in the flue from flowing back in.

[0045] In this embodiment, the smoke collection hood 4 includes an upper smoke collection hood and two side smoke collection hoods. The front of the upper smoke collection hood is provided with a control panel 8, which is electrically connected to the motor 2.

[0046] Among them, the control panel 8 can be a glass touch panel, made of glass, which is easy to clean.

[0047] In a specific implementation, the control panel 8 can also be connected to a communication module, which includes at least one of a wired communication chip and a wireless communication chip, so that the user can remotely control the ultra-thin range hood. In this embodiment, a light 9 is also provided at the bottom of the upper smoke hood, and the light 9 is electrically connected to the control panel 8 to realize the lighting function of the ultra-thin range hood.

[0048] In practice, the lighting lamp 9 can be an LED light strip arranged along the length of the housing 1, or it can be a single LED bulb.

[0049] In this embodiment, the top of the housing 1 is also provided with a power supply box 18 for connecting to an external power source. The power supply box 18 is connected to the motor 2 and the control panel 8 respectively. The power supply box 18 is used to supply power and is connected to an external power source.

[0050] Other components and operations of the ultra-thin range hood according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] In the description of this specification, references to the terms "embodiment," "specific embodiment," "example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of the present invention.

[0053] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined with each other in any suitable manner in one or more embodiments or examples without interference or contradiction.

Claims

1. An ultra-thin range hood, characterized in that: It includes a housing and a fan, wherein the housing is provided with an air inlet and an air outlet, and the fan is located inside the housing; The fan includes a volute, a rotor, and a motor. The rotor is located inside the volute, the motor is located inside the rotor, and the motor shaft is connected to the rotor. The volute includes a front plate, a side plate, and a rear plate, and the motor housing is integrally formed with the rear plate.

2. The ultra-thin range hood according to claim 1, characterized in that: The housing includes a front panel and a rear panel. The volute side panel is located between the front panel and the rear panel. The portion of the front panel surrounded by the volute side panel is the volute front panel. The volute rear panel is located on the rear panel. The front plate, rear plate, and side plate of the volute form an air duct cavity within the volute. The air duct cavity is connected to the air inlet and the air outlet, respectively. The air inlet is located on the front plate of the volute, and the air outlet is located on the top plate of the housing.

3. The ultra-thin range hood according to claim 2, characterized in that: The wind turbine includes a front plate, a middle plate, a rear plate, and multiple blades. The middle part of the multiple blades passes through the edge of the middle plate, and the front and rear ends are respectively fixed to the front plate and the rear plate. The center of the disk protrudes forward and a bushing with a mounting hole is provided at the central axis position. The rotating shaft passes through the mounting hole and is fixedly connected to the bushing through the impeller nut. The multiple blades are arranged around the motor.

4. The ultra-thin range hood according to claim 2 or 3, characterized in that: The front panel has a smoke collection hood at the top and sides, a removable condenser plate in front of the air inlet, and an oil filter screen on the air inlet.

5. The ultra-thin range hood according to claim 4, characterized in that: An oil drain hole is provided at the bottom of the air duct cavity, and several oil drain holes are provided on the bottom plate of the box; a removable oil cup is provided at the bottom of the box.

6. The ultra-thin range hood according to claim 4, characterized in that: The air outlet is equipped with a check valve.

7. The ultra-thin range hood according to claim 4, characterized in that: The smoke collection hood includes an upper smoke collection hood and two side smoke collection hoods. The front of the upper smoke collection hood is provided with a control panel, which is electrically connected to the motor.

8. The ultra-thin range hood according to claim 7, characterized in that: The bottom of the upper smoke hood is also equipped with a light, which is electrically connected to the control panel.

9. The ultra-thin range hood according to claim 8, characterized in that: The top of the housing is also equipped with a power supply box, which is connected to the motor and the control panel respectively.

10. The ultra-thin range hood according to claim 7, characterized in that: Both the condenser plate and the control panel are made of glass.

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