Exhaust fume collecting hood assembly and range hood
The design of the smoke guide plate, which combines electromagnets and magnetic components, solves the problem of complex movement mechanisms in European-style range hoods, enabling precise control and effective guidance of fumes, preventing odor backflow, and improving the user experience.
Patent Information
- Application Number
- CN202520394164.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-07
AI Technical Summary
The existing European-style range hoods have overly complex smoke guide plate movement mechanisms, making it impossible to control each smoke guide plate individually. This results in smoke easily escaping and odor backflow after use.
The system uses electromagnets and magnetic components to rotate the smoke guide plates, simplifying the structure and enabling individual control of each smoke guide plate. Combined with an oil fume identification device, it provides precise smoke guidance and adjusts the rotation angle of the smoke guide plates according to the smoke escape situation.
It achieves precise control of the smoke guide plate, reduces the escape of oil fumes, improves the smoke extraction effect, prevents odor backflow, and simplifies the structural design.
Smart Images
Figure CN223954229U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of kitchen utensils, in particular to a fume hood assembly and range hood. BACKGROUND
[0002] The range hood is one of the main tools to solve the kitchen fume problem, and the European range hood in the range hood is favored by certain users due to its simplicity and atmosphere. However, the European range hood has a significant problem that the height of the fume hood is too far from the cooking table, and the negative pressure area is relatively high relative to the fume, which leads to easy escape of the fume, affecting the health and use experience of the user. The prior art adjusts the position (deflection angle) of the smoke guide plate according to the detection parameters, or controls the rotation angle of the smoke guide plate according to the length of the guide hole.
[0003] The scheme of adjusting the position (deflection angle) of the smoke guide plate according to the detection parameters is too general in terms of the rotation of the smoke guide plate, and the smoke guide plate is not controlled separately in different regions, so it cannot achieve the effect of closing part of the blades and enhancing the suction force when a single stove is used.
[0004] The scheme of controlling the rotation angle of the smoke guide plate according to the length of the guide hole is that after the length of the guide hole is determined, the rotation angle of each smoke guide plate is different during operation, and the movement mechanism needs to be linked, so the overall structure is too complex, and after the length of the guide hole is determined, the rotation angle of each smoke guide plate is determined, and it cannot cope with complex fume distribution, which may cause fume spinning or fume running.
[0005] The above two schemes cannot achieve individual control of the rotation angle of each smoke guide plate, and cannot solve the problem of fume running in front of the range hood.
[0006] In addition, the existing European range hood is connected with the external space after use, which is easy to cause the problem of reverse flow of public flue or internal odor of the range hood to the kitchen. INVENTION CONTENTS
[0007] The utility model solves the technical problem that the movement mechanism of the smoke guide plate in the prior art is too complex, and provides a fume hood assembly and range hood.
[0008] The utility model solves the above technical problems through the following technical scheme:
[0009] A fume hood assembly comprises a support member, a plurality of smoke guide plates, and a plurality of actuating structures.
[0010] The plurality of smoke guide plates are rotatably arranged on the support member.
[0011] The actuating structure comprises an electromagnet and a magnetic attraction member, the electromagnet is arranged on the support member, and the magnetic attraction member is arranged on the smoke guide sheet, and the electromagnet is used to attract the magnetic attraction member to rotate the smoke guide sheet.
[0012] The actuating structure is arranged in one-to-one correspondence with the smoke guide sheet.
[0013] In the scheme, the smoke guide sheet of the smoke hood assembly is rotated through the cooperation of the electromagnet and the magnetic attraction member, thereby omitting the complex linkage structure, simplifying the overall structure of the smoke hood assembly, and arranging one actuating structure corresponding to each smoke guide sheet of the smoke hood assembly, so that the rotation angle of each smoke guide sheet can be controlled through the separate control of the actuating structure, thereby realizing more precise smoke guiding.
[0014] Preferably, the support member is a frame structure, both ends of the smoke guide sheet are arranged inside the frame structure, the electromagnet is arranged on the inner side of the frame structure and close to the connection point of the smoke guide sheet and the frame structure, and the magnetic attraction member is arranged on the end of the smoke guide sheet close to the electromagnet.
[0015] In the scheme, by arranging the electromagnet close to the connection point of the smoke guide sheet and the frame structure, the magnetic attraction member on the smoke guide sheet can be conveniently attracted.
[0016] Preferably, each actuating structure comprises two electromagnets and one magnetic attraction member, and the two electromagnets are arranged on both sides of the connection point of the smoke guide sheet and the frame structure, respectively.
[0017] In the scheme, by arranging the electromagnets on both sides of the connection point of the smoke guide sheet and the frame structure, respectively, the rotation of the smoke guide sheet within a range of 180° can be realized.
[0018] Preferably, the smoke hood assembly further comprises an oil fume recognition device, the oil fume recognition device is used to recognize the movement trend of the oil fume below the smoke hood assembly, and the oil fume recognition device is electrically connected with the electromagnet.
[0019] In the scheme, the smoke hood assembly can control each smoke guide sheet according to the recognized movement trend of the oil fume, thereby better guiding the oil fume into the range hood.
[0020] Preferably, the smoke guide sheet is a non-magnetic attraction member.
[0021] In the scheme, the smoke guide sheet is a non-magnetic attraction member, which can avoid interfering with the actuation of the actuating structure.
[0022] Preferably, the magnetic attraction member is a light magnetic attraction metal sheet.
[0023] Preferably, the support member is a frame structure, and the frame structure has a plurality of flow guide areas inside, and each of the flow guide areas is respectively provided with a plurality of smoke guide vanes.
[0024] In this scheme, after the plurality of flow guide areas are provided, the smoke guide vanes in each flow guide area can be controlled respectively according to the smoke running situation in each flow guide area.
[0025] Preferably, the extension directions of the smoke guide vanes in different flow guide areas are different.
[0026] In this scheme, the extension directions of the smoke guide vanes are set to be different due to the different smoke running situations in different flow guide areas, so that the smoke can be better guided.
[0027] Preferably, the frame structure has three flow guide areas arranged side by side along a first direction inside, and the smoke guide vanes of the flow guide area located in the center are arranged to extend along a direction perpendicular to the first direction, and the smoke guide vanes of the flow guide areas located on both sides are arranged to extend along the first direction.
[0028] In this scheme, due to the characteristics of the range hood, the oil fume usually escapes from the middle to both sides, therefore, the smoke guide vanes of the flow guide area located in the center extending perpendicular to the first direction can prevent the oil fume from escaping forward and backward, and the smoke guide vanes of the flow guide areas located on both sides extending along the first direction can prevent the oil fume from escaping toward both sides.
[0029] A range hood comprising the smoke collecting hood assembly as described above.
[0030] Preferably, the range hood further comprises a control unit and a main machine, the control unit is used for controlling the operation of the main machine, and the smoke collecting hood assembly is arranged on the lower surface of the main machine.
[0031] The control unit is electrically connected to the electromagnet and is used for controlling the energization state of the electromagnet.
[0032] The positive progress effect of the utility model lies in that: the smoke guide vanes of the smoke collecting hood assembly are rotated through the cooperation of the electromagnet and the magnetic attraction component, so that the complex linkage structure is omitted, and the overall structure of the smoke collecting hood assembly is simplified. BRIEF DESCRIPTION OF DRAWINGS
[0033] Figure 1 It is a perspective structural schematic view of the smoke collecting hood assembly according to the preferred embodiment of the utility model.
[0034] Figure 2 It is a top view structural schematic view of the smoke collecting hood assembly according to the preferred embodiment of the utility model.
[0035] Figure 3for taking along Figure 2 a cross-sectional structure schematic view of the smoke hood assembly taken along the A-A line of
[0036] Figure 4 a magnified structure schematic view of the B part of Figure 3
[0037] Figure 5 a structure schematic view of the range hood according to the preferred embodiment of the present application.
[0038] Explanation of Reference Signs: smoke hood assembly 100; support member 110; smoke guide sheet 120; electromagnet 130; magnetic attraction member 140; range hood 200; main machine 210. DETAILED DESCRIPTION
[0039] The present application will be further described below by way of examples with reference to the accompanying drawings, but the present application is not limited in the scope of the examples by the present application.
[0040] As shown in Figures 1-4 , the present embodiment provides a smoke hood assembly 100, which comprises: a support member 110, a plurality of smoke guide sheets 120 and a plurality of actuating structures.
[0041] The plurality of smoke guide sheets 120 are rotatably arranged on the support member 110.
[0042] The actuating structure comprises: an electromagnet 130 and a magnetic attraction member 140, the electromagnet 130 is arranged on the support member 110, the magnetic attraction member 140 is arranged on the smoke guide sheet 120, and the electromagnet 130 is used to attract the magnetic attraction member 140 to make the smoke guide sheet 120 rotate. The actuating structure is arranged one-to-one corresponding to the smoke guide sheet 120.
[0043] The smoke guide sheet 120 of the smoke hood assembly 100 is rotated by the cooperation of the electromagnet 130 and the magnetic attraction member 140, thereby omitting the complex linkage structure and simplifying the overall structure of the smoke hood assembly 100. Each smoke guide sheet 120 of the smoke hood assembly 100 is provided with one actuating structure, so that the rotation angle of each smoke guide sheet 120 can be controlled by controlling the actuating structure individually, thereby realizing more refined smoke guiding.
[0044] In the present embodiment, the support member 110 is a frame structure, both ends of the smoke guide sheet 120 are arranged inside the frame structure, the electromagnet 130 is arranged on the inner side surface of the frame structure and close to the connection point of the smoke guide sheet 120 and the frame structure, and the magnetic attraction member 140 is arranged on the end of the smoke guide sheet 120 close to the electromagnet 130.
[0045] The size and shape of the frame structure of the support member 110 can be adapted to the design of the range hood 200. The support member 110 can be an external structure relative to the main machine 210 of the range hood 200, or an integral or internal structure of the main machine 210 of the range hood 200.
[0046] In other embodiments, the support member 110 can also not be a frame structure, but other existing structures that can support the rotation of the smoke guide sheet 120.
[0047] The electromagnet 130 refers to an object that has magnetism when energized and loses magnetism when not energized, such as a common electromagnet. The magnetic attraction member 140 refers to a member that can be attracted by magnetic force, such as gadolinium, iron, cobalt, and nickel metals.
[0048] By placing the electromagnet 130 close to the connection point of the smoke guide sheet 120 and the frame structure, the magnetic attraction member 140 located on the smoke guide sheet 120 can be conveniently attracted.
[0049] The smoke guide sheet 120 is a non-magnetic attraction member 140.
[0050] The smoke guide sheet 120 is a non-magnetic attraction member 140, which can avoid interference with the actuation of the actuation structure. The smoke guide sheet 120 can be, for example, a plastic, resin, or other product.
[0051] The magnetic attraction member 140 is a light magnetic attraction metal sheet, which is generally an iron sheet. The light magnetic attraction metal sheet can be conveniently attached to the smoke guide sheet 120 by means of adhesion or inlaying.
[0052] The electromagnet 130 generates a magnetic force, which, by adjusting the size of the energizing current, attracts the light magnetic attraction metal sheet, and controls the movement of the smoke guide sheet 120 by resisting the torque generated by the center of gravity of the smoke guide sheet 120 relative to the rotation axis.
[0053] Among them, the mass of the smoke guide sheet 120 is much larger than the mass of the light magnetic attraction metal sheet.
[0054] Let the center of mass m of the smoke guide sheet 120 be a distance from the rotation axis , and the center of mass of the magnetic attraction member 140 be a distance from the rotation axis ; when the smoke guide plate is turned θ upward from the vertical state, the torque generated by the center of mass of the smoke guide sheet 120 relative to the rotation axis is ; let the distance between the electromagnet 130 and the magnetic attraction member 140 be d, then , assuming that the current passing through the electromagnet at this time is I, then the size of the electromagnetic force is , and the torque generated by the electromagnetic force relative to the rotation axis is , at θ, , so the function of the electromagnetic force and m, I, d can be obtained Thus, different currents I are passed at different positions to achieve any opening angle of the smoke guide 120.
[0055] Only one electromagnet 130 is shown on one side of the smoke guide 120. Electromagnets are installed on both sides of the rotation shaft (connection point) of the smoke guide 120 to achieve any opening angle of 180 degrees.
[0056] The support member 110 is a frame structure, and the frame structure has a plurality of flow guide areas inside, and each flow guide area is respectively provided with a plurality of smoke guides 120.
[0057] After the plurality of flow guide areas are arranged, the smoke guides 120 in each flow guide area can be controlled respectively according to the smoke running situation in each flow guide area.
[0058] The extension directions of the smoke guides 120 in different flow guide areas are different.
[0059] Since the smoke running situations in different flow guide areas are different, the extension directions of the smoke guides 120 are set to be different, so that the smoke can be better guided.
[0060] In this embodiment, the frame structure has three flow guide areas arranged side by side along the first direction X, the smoke guides 120 of the flow guide area in the center are arranged to extend along the direction (second direction Y) perpendicular to the first direction X, and the smoke guides 120 of the flow guide areas on both sides are arranged to extend along the first direction X, wherein the arrangement direction of the three flow guide areas is the first direction X.
[0061] Due to the characteristics of the range hood 200, the oil fume usually escapes from the middle to both sides, so that the smoke guides 120 of the flow guide area in the center extending along the second direction can prevent the oil fume from escaping forward and backward, and the smoke guides 120 of the flow guide areas on both sides extending along the first direction can prevent the oil fume from escaping toward both sides.
[0062] Of course, this embodiment is not limited thereto, and those skilled in the art can arrange the number and arrangement of the flow guide areas as needed.
[0063] The lower end of the support member 110 of the smoke collecting hood assembly 100 can also be provided with an oil fume recognition device for recognizing the movement trend of the oil fume below the smoke collecting hood assembly 100. The smoke collecting hood assembly 100 can control each smoke guide 120 according to the recognized movement trend of the oil fume, so as to better guide the oil fume into the range hood 200.
[0064] The oil fume recognition device can adopt existing smoke sensors and the like. The oil fume recognition device can be a plurality of smoke sensors arranged along the lower end edge of the frame structure, so as to determine in which direction the oil fume is diffusing by recognizing the concentration at different positions.
[0065] The oil fume recognition device is provided with left, front and right oil fume movement area boundaries Sleft, Sfront and Sright. When the oil fume movement exceeds the movement area boundary in a unit time, the smoke guide piece 120 in the corresponding direction rotates by a certain angle. The greater the area outside the movement area boundary that is exceeded, the smaller the rotation angle of the smoke guide piece 120. At this time, the negative pressure area reaches the maximum under the condition of ensuring the air volume, and the running smoke condition is prevented.
[0066] As shown in Figure 5 The present embodiment also provides an oil fume extractor 200, which comprises the smoke collecting hood assembly 100 as above.
[0067] The oil fume extractor 200 further comprises a control unit and a main machine 210. The control unit is used for controlling the operation of the main machine 210. The smoke collecting hood assembly 100 is arranged on the lower surface of the main machine 210.
[0068] The control unit is electrically connected to the electromagnet 130 and is used for controlling the energization state of the electromagnet 130.
[0069] By electrically connecting the electromagnet 130 to the control unit of the oil fume extractor 200, the oil fume extractor 200 can control the smoke guide piece 120 according to the running smoke condition of itself, so as to better guide the oil fume into the oil fume extractor 200. The oil fume recognition device is also electrically connected to the control unit. The control unit controls the rotation angle of each smoke guide piece 120 according to the recognition result of the oil fume recognition device.
[0070] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship of the device or element in the normal use, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element must have a specific orientation at any time, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model in this respect.
[0071] Although the specific embodiments of the present utility model are described above, those skilled in the art should understand that this is only an example. The protection scope of the present utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present utility model. However, these changes and modifications all fall within the protection scope of the present utility model.
Claims
1. A hood assembly comprising: It comprises a support member, a plurality of smoke guide pieces and a plurality of actuating structures; The plurality of smoke guide pieces are rotatably arranged on the support member; The actuating structure comprises an electromagnet arranged on the support member and a magnetic attraction member arranged on the smoke guide piece, the electromagnet being used to attract the magnetic attraction member to make the smoke guide piece rotate; The actuating structure is arranged one-to-one with the smoke guide piece.
2. The hood assembly of claim 1, wherein, The support member is a frame structure, two ends of the smoke guide piece are arranged inside the frame structure, the electromagnet is arranged on the inner side of the frame structure and close to the connection point of the smoke guide piece and the frame structure, and the magnetic attraction member is arranged on the end of the smoke guide piece close to the electromagnet.
3. The hood assembly of claim 1, wherein, The smoke hood assembly further comprises an oil fume recognition device, the oil fume recognition device being used to recognize the movement trend of the oil fume below the smoke hood assembly, and the oil fume recognition device being electrically connected with the electromagnet.
4. The hood assembly of claim 1, wherein, The smoke guide piece is a non-magnetic attraction member.
5. The hood assembly of claim 1, wherein, The magnetic attraction member is a light magnetic attraction metal sheet.
6. The hood assembly of claim 1, wherein, The support member is a frame structure, the frame structure has a plurality of flow guide areas inside, each flow guide area is respectively provided with a plurality of smoke guide pieces, and the extension directions of the smoke guide pieces in different flow guide areas are different.
7. The hood assembly of claim 2, wherein Each actuating structure comprises two electromagnets and one magnetic attraction member, and the two electromagnets are arranged on both sides of the connection point of the smoke guide piece and the frame structure.
8. The hood assembly of claim 6, wherein, The frame structure has three flow guide areas arranged side by side along a first direction inside, the smoke guide pieces of the flow guide area in the center are arranged to extend along a direction perpendicular to the first direction, and the smoke guide pieces of the flow guide areas on both sides are arranged to extend along the first direction.
9. A range hood characterized by It comprises the smoke hood assembly according to any one of claims 1-8.
10. The hood as claimed in claim 9 wherein, The range hood further comprises a control unit and a main machine, the control unit being used to control the operation of the main machine, and the smoke hood assembly being arranged on the lower surface of the main machine; The control unit is electrically connected with the electromagnet and is used to control the energization state of the electromagnet.