A multi-inlet range hood
By designing a multi-inlet structure and a cloud-plate filtration system in the range hood, the problems of high load on the wind turbine components and poor smoke extraction effect in the existing technology have been solved, achieving a more efficient smoke extraction and smoke removal effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN OUZE ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-26
Smart Images
Figure CN224415230U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of range hood technology, and more specifically to a range hood with multiple air inlets. Background Technology
[0002] Currently, the only known smoke extraction path for range hoods is through the central air inlet mesh to the impeller in the volute, which then ejects the smoke into the exhaust pipe, achieving the desired smoke extraction effect. The structural components along this path include the inlet grease filter, the fan assembly, and the exhaust vent. Most household range hoods currently use large-area air intakes, meaning a large air inlet is located on the front of the hood, equipped with an inlet grease filter. While large inlets allow for a wide air intake range, insufficient power in the fan assembly affects smoke extraction efficiency. Existing technology typically uses the inlet grease filter to condense grease from the fumes, resulting in weak grease filtration. Some grease adheres to the fan assembly, severely impacting the impeller's efficiency, increasing its load, and consequently increasing the load on the motor, ultimately affecting smoke extraction performance. Utility Model Content
[0003] In view of this, the present invention provides a range hood with multiple air inlets.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a multi-inlet range hood, comprising: a smoke collection hood and a fan assembly disposed within the smoke collection hood; the smoke collection hood is provided with a main air inlet and two secondary air inlets, the secondary air inlets being located on both sides of the main air inlet, a main oil filter being installed at the main air inlet, a cloud plate being disposed on the outside of the smoke collection hood corresponding to the main air inlet, and an air intake gap being formed between the cloud plate and the main oil filter; a strip-shaped air intake hole penetrating the front and back of the cloud plate is opened in the middle of the cloud plate; a baffle is provided on the main oil filter corresponding to the air intake hole; the oil fumes drawn in from the air intake hole partially impact the baffle.
[0005] As a preferred embodiment of this utility model, the projection of the cloud plate on the smoke hood covers the main air inlet.
[0006] As a preferred embodiment of this utility model, the cloud plate and the plane where the main air inlet is located form an angle α, where 0° < α < 45°.
[0007] In a preferred embodiment of this utility model, the cloud plate is connected to the smoke collection hood via a connector.
[0008] As a preferred embodiment of this utility model, the connector includes: a female connector disposed on the cloud plate and a male connector disposed on the smoke collection hood; one of the female connector and the male connector is provided with a pin and the other is provided with a socket.
[0009] In a preferred embodiment of this utility model, the female connector is located on the front side near the cloud plate;
[0010] An insert is provided on the rear side of the cloud plate;
[0011] The smoke hood is provided with slots for inserting the insert.
[0012] As a preferred embodiment of this utility model, the smoke hood is provided with an oil collection cup below the rear side of the cloud plate.
[0013] As a preferred embodiment of this utility model, the secondary air inlet is provided with a secondary oil filter.
[0014] As a preferred embodiment of this utility model, an oil baffle is provided inside the smoke collection hood corresponding to the secondary air inlet.
[0015] As can be seen from the above technical solution, compared with the prior art, the present invention has the following beneficial technical effects:
[0016] 1. This utility model has a cloud plate installed below the main air inlet, and an air inlet gap is formed between the cloud plate and the main oil mesh, which makes the air force more concentrated. Auxiliary air inlets are set on both sides of the main air inlet, which makes the smoke exhaust range wider and the smoke exhaust speed stronger.
[0017] 2. This utility model has a cloud plate below the main air inlet, and the cloud plate is provided with air inlet holes, which effectively collects the oil fumes over the largest area, lowers the smoke collection height, effectively captures and condenses the oil fumes, slows down the oil fumes to prevent diffusion, maximizes the expansion of the air intake channel, which is conducive to increasing the air volume and strengthening the smoke exhaust speed.
[0018] 3. This utility model adds symmetrical secondary air inlets on both sides of the main air inlet, and sets secondary oil screens at the secondary air inlets to form the first oil fume filter. A smoke baffle is added behind it, which together with the secondary oil screens form a physical oil fume separation air inlet chamber, effectively separating the oil fumes entering from the secondary air inlets. Attached Figure Description
[0019] 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.
[0020] Figure 1 This is a side view of the present invention.
[0021] Figure 2 for Figure 1 Schematic diagram of the cross section of line AA in the middle;
[0022] Figure 3 This is a schematic diagram of the structure of this utility model;
[0023] Figure 4 This is an exploded view of the present invention;
[0024] Figure 5 This is a schematic diagram of the cloud plate in this utility model.
[0025] Explanation of reference numerals in the attached figures
[0026] Smoke hood 100; main air inlet 101; secondary air inlet 102; air inlet gap 103; slot 104; main oil screen 110; baffle 111; cloud plate 120; air inlet hole 121; insert 122; connector 130; male connector 131; socket 1311; female connector 132; pin 1321; oil cup 140; secondary oil screen 150; smoke baffle 160. Detailed Implementation
[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.
[0028] In the description of this application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application 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 of this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0030] For a range hood with multiple air inlets, please refer to [link / reference]. Figure 1-5As shown, it includes: a smoke hood 100 and a wind turbine assembly installed inside the smoke hood 100; the smoke hood 100 is provided with a main air inlet 101 and two secondary air inlets 102, the secondary air inlets 102 are located on both sides of the main air inlet 101, the area of the main air inlet 101 is larger than the area of the secondary air inlets 102, and a main oil screen 110 is installed at the main air inlet 101.
[0031] The wind turbine uses existing technology, which will not be described in detail here. When the wind turbine is running, it draws in the fumes from the main air inlet 101 and the two auxiliary air inlets 102 into the fume collection chamber inside the fume collection hood 100, and finally discharges them to the outside.
[0032] A cloud plate 120 is provided on the outside of the fume hood 100 corresponding to the main air inlet 101, and an air inlet gap 103 is formed between the cloud plate 120 and the main oil screen 110; a strip-shaped air inlet hole 121 is opened in the middle of the cloud plate 120, which runs through the front and back of the cloud plate 120; a baffle 111 is provided on the main oil screen 110 corresponding to the air inlet hole 121; the oil fumes drawn in from the air inlet hole 121 partially impact the baffle 111. Specifically, when the wind turbine is running, some of the oil fumes are drawn into the smoke collection chamber inside the smoke collection hood 100 from the two secondary air inlets 102. Some of the oil fumes enter the air inlet gap 103 between the cloud plate 120 and the main oil screen 110 from the periphery of the cloud plate 120, and then pass through the mesh of the main oil screen 110 into the smoke collection chamber inside the smoke collection hood 100. Some of the oil fumes enter the space between the cloud plate 120 and the main oil screen 110 through the air inlet 121, and then pass through the mesh of the main oil screen 110 into the smoke collection chamber inside the smoke collection hood 100.
[0033] During the smoking process, some of the oil fumes impact the lower surface of the cloud plate 120, and some grease adheres to the lower surface of the cloud plate 120. As the oil fumes pass through the air inlet gap 103 and then through the mesh of the main oil mesh 110 into the smoke collection chamber inside the smoke collection hood 100, the oil fumes are filtered by the main oil mesh 110 again, and some grease adheres to the main oil mesh 110.
[0034] Furthermore, during the smoking process, some of the fumes impact the lower surface of the cloud plate 120, and some grease accumulates on the lower surface of the cloud plate 120. The fumes enter from the air inlet 121 between the cloud plate 120 and the main grease filter 110 and then impact the baffle 111. Some grease adheres to the baffle 111. Due to the suction of the fan component, some of the fumes impacting the baffle 111 will pass through both sides of the baffle 111 and be filtered again by the main grease filter 110 before entering the smoke collection chamber inside the smoke collection hood 100. Some of the fumes impacting the baffle 111 will bounce back and impact the upper surface of the cloud plate 120, causing some grease to adhere to the upper surface of the cloud plate 120. Then, the fumes will be filtered again by the main grease filter 110 before entering the smoke collection chamber inside the smoke collection hood 100. In this way, after multiple grease filtrations, the filtration effect is better.
[0035] In addition, with the addition of a 120mm cloud panel, the airflow is concentrated, resulting in better smoke extraction.
[0036] like Figure 1 As shown, in the vertical direction, the projection of the cloud plate 120 on the smoke hood 100 covers the main air inlet 101. When air enters from the main air inlet 101, it needs to bypass the cloud plate 120.
[0037] Furthermore, the plane containing the cloud-shaped plate 120 and the main air inlet 101 forms an angle α, where 0° < α < 45°.
[0038] Preferably, the included angle α is one of 10°, 15°, 20°, 25°, or 30°.
[0039] Continue as Figure 1 As shown, the cloud plate 120 is tilted downwards from right to left, which makes it easier for grease to drip into the oil collection cup 140 and be collected.
[0040] In one embodiment, the cloud plate 120 can be fixedly installed with the smoke hood 100 or it can be lifted and lowered. In the fixed installation method, the position of the cloud plate 120 remains unchanged, the size of the air inlet gap 103 remains unchanged, and the structure is simple.
[0041] The lifting installation allows the cloud plate 120 to be lowered when the range hood is in use and raised when the range hood is not in use to block the main air inlet 101, thus providing protection such as dust prevention and preventing cockroaches from crawling into the smoke collection hood 100 from the main air inlet 101.
[0042] In this embodiment, the cloud plate 120 and the smoke hood 100 are fixedly installed.
[0043] Specifically, such as Figure 4-5 As shown, the cloud plate 120 and the smoke hood 100 are installed together by a connector 130. The connector 130 includes two female connectors 132 disposed on the cloud plate 120 and a male connector 131 disposed on the smoke hood 100 corresponding to the female connectors 132. One of the male connectors 131 and the female connectors 132 is provided with a socket and the other is provided with a pin.
[0044] like Figure 4 and Figure 5 As shown, the female connector 132 is provided with a pin 1321 and the male connector 131 is provided with a socket 1311; the cloud plate 120 is inserted into the bottom of the smoke hood 100 through the cooperation of the female connector 132 and the male connector 131.
[0045] Continue as Figure 4 and Figure 5As shown, there are two female connectors 132 and two male connectors 131. The female connectors 132 are located on the left and right sides of the cloud plate 120 near the front, and the position of the male connectors 131 on the smoke hood 100 corresponds to that of the female connectors 132.
[0046] Optionally, the female connector 132 and the male connector 131 are plugged in and then tightened with screws to enhance the stability of the cloud plate 120 assembled on the smoke hood 100;
[0047] Optionally, the male connector 131 can be a push-button connector, which may be equipped with a trigger button assembly, including a locking tongue, a button, and a spring. The female connector 132 has a locking groove on its pin 1321. When the pin 1321 is inserted into the socket 1311, the male connector 131 and the female connector 132 are locked by the cooperation of the locking tongue and the locking groove. When the cloud plate 120 needs to be removed for cleaning, pressing the button will unlock the male connector 131 and the female connector 132, making it easy to disassemble the cloud plate 120.
[0048] Furthermore, a insert 122 is provided on the rear side of the cloud plate 120, and a slot 104 for inserting the insert 122 is provided on the smoke hood 100.
[0049] During assembly, the insert 122 of the cloud plate 120 is inserted into the slot 104 of the smoke collection hood 100, and then the pin 1321 of the female connector 132 is inserted into the socket 1311 to complete the assembly, and the stability after assembly is strong.
[0050] During installation, Figure 1 The left side of the range hood is against the wall, which can be fixed to the wall, while the cooktop is installed below the range hood; Figure 1 The orientation indicates that the right side corresponds to the front of the cloud board 120, and the left side corresponds to the rear of the cloud board 120.
[0051] The smoke hood 100 has an oil collection cup 140 located below the rear side of the cloud plate 120. The oil collection cup 140 can be fixed to the smoke hood 100 with screws. The oil collection cup 140 is mainly used to collect the grease flowing down from the cloud plate 120, as well as the grease flowing down from the main oil screen 110 and the auxiliary oil screen 150 located at the secondary air inlet 102, so as to facilitate subsequent cleaning.
[0052] Continue as Figure 4 As shown, inside the fume hood 100, a baffle plate 160 is provided corresponding to the secondary air inlet 102. When the oil fumes enter from the secondary air inlet 102, they are first filtered by the secondary oil screen 150, and then enter the fume hood 100 and collide with the baffle plate 160. The grease adheres to the baffle plate 160 for secondary filtration. Finally, the oil fumes enter the main fume collection chamber and are discharged to the outside through the wind power component.
[0053] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
[0054] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
Claims
1. A multi-inlet range hood, comprising: A smoke hood (100) and a wind turbine assembly disposed within the smoke hood (100); the smoke hood (100) is provided with a main air inlet (101) and two auxiliary air inlets (102), the auxiliary air inlets (102) being located on both sides of the main air inlet (101), and a main oil screen (110) being installed at the main air inlet (101), characterized in that: the exterior of the smoke hood (100) is provided corresponding to the main air inlet (101) with a... There is a cloud plate (120), and an air inlet gap (103) is formed between the cloud plate (120) and the main oil mesh (110); an air inlet hole (121) is opened in the middle of the cloud plate (120) to pass through the front and back of the cloud plate (120); a baffle (111) is provided on the main oil mesh (110) corresponding to the air inlet hole (121); the oil fumes drawn in from the air inlet hole (121) partially impact the baffle (111).
2. A multi-inlet range hood according to claim 1, characterized in that: The projection of the cloud plate (120) on the smoke hood (100) covers the main air inlet (101).
3. A multi-inlet range hood according to claim 1, characterized in that: The cloud plate (120) and the plane where the main air inlet (101) is located form an angle α, where 0° < α < 45°.
4. A multi-inlet range hood according to claim 1, characterized in that: The cloud plate (120) is connected to the smoke hood (100) via a connector (130).
5. A multi-inlet range hood according to claim 4, characterized in that: The connector (130) includes a female connector (131) disposed on the cloud plate (120) and a male connector (132) disposed on the smoke hood (100); one of the female connector (131) and the male connector (132) is provided with a pin and the other is provided with a socket.
6. A multi-inlet range hood according to claim 5, characterized in that: The female connector (131) is located on the front side near the cloud plate (120); A insert (122) is provided on the rear side of the cloud plate (120); The smoke hood (100) is provided with a slot (104) for inserting the insert (122).
7. A multi-inlet range hood according to claim 6, characterized in that: The smoke hood (100) has an oil collection cup (140) located below the rear side of the cloud plate (120).
8. A multi-inlet range hood according to claim 1, characterized in that: The secondary air inlet (102) is equipped with a secondary oil filter (150).
9. A multi-inlet range hood according to claim 8, characterized in that: An oil baffle (160) is provided inside the smoke hood (100) corresponding to the secondary air inlet (102).