Range hood and control method thereof

Abstract

The invention belongs to the technical field of electric appliances, and discloses an extractor hood and a control method of the extractor hood. A smoke gathering device comprises a smoke collecting hood, an overturning cavity assembly, a smoke gathering plate and a linkage driving mechanism. The lower end of the overturning cavity assembly is movably mounted in the smoke collecting hood and can be overturned outwards through the front side opening, and the overturning cavity assembly is provided with a smoke inlet communicated with the smoke collecting cavity; the smoke gathering plate is rotationally mounted on the front side of the smoke collecting hood so as to open or close the smoke inlet and the front side opening; the linkage driving mechanism is configured to only drive the smoke gathering plate to rotate when the opening angle of the smoke gathering plate is smaller than or equal to a first preset opening angle, and drive the smoke gathering plate and the overturning cavity assembly to be opened outwards or closed inwards in a linkage mode when the opening angle of the smoke gathering plate is larger than the first preset opening angle. The smoke gathering effect can be improved, and meanwhile energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical appliances, and in particular to a smoke collecting device, a range hood and a control method for the range hood. Background Art

[0002] A range hood is a common kitchen appliance used to extract kitchen fumes. It can effectively purify the kitchen environment and enhance the user's cooking experience.

[0003] In order to reduce the space occupied by the range hood, the prior art provides a range hood, which includes a smoke hood, a main smoke baffle, a first smoke plate, and a second smoke plate. The front side of the smoke hood is provided with an installation opening; the main smoke baffle is rotatably installed on the front side of the smoke hood, the lower end of the first smoke plate is hinged to the smoke hood and the upper end is hinged to one side of the second smoke plate, the other side of the second smoke plate is hinged to the main smoke baffle, and a smoke inlet is provided on the second smoke plate. When the main smoke baffle is flipped and rotated, the first smoke plate and the second smoke plate are driven to unfold in linkage, so that the main smoke baffle, the first smoke plate and the second smoke plate are enclosed to form a smoke trapping space.

[0004] Although the range hood provided by the prior art can enhance the smoke-collecting effect through the linkage of the first smoke plate, the second smoke plate and the main smoke baffle, at that time, since the driving component needs to drive the first smoke plate, the second smoke plate and the main smoke baffle to move at the same time, the driving cost of the range hood is relatively high. In particular, when the amount of oil smoke is small, if the main smoke baffle is fully opened, it will cause a significant waste of driving energy. If the driving cost is reduced by reducing the flip angle of the main smoke baffle, the smoke inlet will be partially blocked, resulting in poor smoke intake effect, affecting the normal use of the range hood. Summary of the invention

[0005] The object of the present invention is to provide a range hood and a control method for the range hood, which can improve the oil fume suction effect of the range hood while reducing the driving cost of the range hood and saving energy consumption.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A range hood, comprising a smoke collecting hood having a smoke collecting cavity and a front opening, characterized in that the range hood further comprises:

[0008] A flip chamber assembly, the lower end of which is movably mounted in the smoke collecting hood and can be flipped outward through the front opening, and the flip chamber assembly has a smoke inlet connected to the smoke collecting chamber;

[0009] A smoke collecting plate, rotatably mounted on the front side of the smoke collecting hood to open or close the smoke inlet and the front opening;

[0010] The linkage drive mechanism is configured to only drive the smoke collecting plate to rotate when the opening angle of the smoke collecting plate is less than or equal to a first preset opening angle, and to drive the smoke collecting plate and the flip chamber assembly to open outward or close inward in a linkage manner when the opening angle of the smoke collecting plate is greater than the first preset opening angle.

[0011] As an optional technical solution for a range hood, a connecting hole is provided on the side of the flip chamber assembly, and the linkage drive mechanism includes a flip linkage, a drive motor and a transmission assembly, and the transmission assembly is connected to the flip linkage and the smoke collecting plate. The drive motor drives the smoke collecting plate to rotate through the transmission assembly, while actuating the flip linkage to slide in the connecting hole to drive the flip chamber assembly to rotate.

[0012] As an optional technical solution of the range hood, the connecting hole includes an avoidance hole portion and an actuating hole portion connected to the front end of the avoidance hole portion, the shape of the avoidance hole portion is consistent with the running trajectory of the flip linkage when the smoke collecting plate is opened from a closed state to the first preset opening angle, when the opening angle of the smoke collecting plate is less than the first preset opening angle, the flip linkage slides along the avoidance hole portion, and when the opening angle of the smoke collecting plate is greater than the first preset opening angle, the flip linkage slides in the actuating hole portion to actuate the flip chamber assembly to rotate;

[0013] And / or, the range hood further comprises a reset member, and the reset member always applies an elastic force to the flip chamber assembly to rotate backward.

[0014] As an optional technical solution for a range hood, the avoidance hole portion is an arc-shaped hole opening toward the rotation axis of the smoke collecting plate, and the actuating hole portion is an elongated hole extending along the height direction of the flip chamber assembly.

[0015] As an optional technical solution of the range hood, the flip chamber assembly includes an outer mounting frame and a smoke collecting inner frame, the lower end of the outer mounting frame is rotatably mounted inside the smoke collecting hood, the smoke collecting inner frame can be slidably mounted on the outer mounting frame along the height direction of the outer mounting frame, so that the upper end of the smoke collecting inner frame is close to or away from the smoke collecting plate, the smoke collecting inner frame has the smoke inlet, and the linkage drive mechanism is connected to the outer mounting frame;

[0016] And / or, the smoke collecting plate includes a main smoke plate and an auxiliary smoke plate hinged to the lower end of the main smoke plate, the upper end of the main smoke plate is rotatably mounted on the smoke collecting hood, and the main smoke plate and the auxiliary smoke plate cooperate to close or open the front opening, and the linkage drive mechanism is connected between the main smoke plate and the flip chamber assembly.

[0017] As an optional technical solution of the range hood, a coupling assembly is connected between the smoke collecting plate and the smoke collecting inner frame, and the coupling assembly is configured to: when the smoke collecting plate is flipped open relative to the smoke collecting hood, pull the upper end of the smoke collecting inner frame close to the smoke collecting plate;

[0018] Alternatively, a coupling assembly is connected between the auxiliary smoke plate and the smoke collecting inner frame, and the coupling assembly is configured to pull the upper end of the smoke collecting inner frame closer to the main smoke plate when the auxiliary smoke plate is flipped relative to the main smoke plate in a direction away from the smoke collecting hood.

[0019] A control method for a range hood is applied to the control of the range hood as described above, the control method comprising: controlling the opening angle of the smoke collecting plate according to the current cooking state, and when the current cooking state is a low smoke cooking state, controlling the opening angle of the smoke collecting plate to be less than or equal to the first preset opening angle.

[0020] As an optional technical solution of a control method, the smoke collecting plate includes a main smoke plate and an auxiliary smoke plate hinged to the lower end of the main smoke plate, the upper end of the main smoke plate is rotatably mounted on the smoke collecting hood, and the linkage drive mechanism acts on the main smoke plate;

[0021] The control method further includes: when a preset expansion condition is met, controlling the auxiliary smoke plate to flip relative to the main smoke plate in a direction away from the smoke collecting hood; and / or, the control method further includes: when it is determined that the smoke collecting plate blocks the user's line of sight, controlling the auxiliary smoke plate to flip relative to the main smoke plate in a direction toward the smoke collecting hood.

[0022] As an optional technical solution of a control method, the controller of the range hood has multiple smoke value intervals and air volume intervals built in, and the control method includes: real-time detection of smoke concentration during cooking and actual operating air volume of the fan, and judging whether a preset expansion condition is met according to a preset smoke interval where the detected smoke value is located and an air volume interval where the actual operating air volume value is located;

[0023] And / or, when it is determined that the smoke collecting plate blocks the user's sight and the current opening angle of the main smoke plate is less than the maximum opening angle, the auxiliary smoke plate is controlled to flip relative to the main smoke plate in the direction toward the smoke collecting hood and increase the opening angle of the main smoke plate.

[0024] As an optional technical solution of a control method, when the current cooking state is a high smoke cooking state, if the height of the user is less than a preset height, the main smoke plate is controlled to open to a second preset angle, and the auxiliary smoke plate is controlled to flip outward relative to the main smoke plate;

[0025] And / or, when the current cooking state is a high smoke cooking state, if the user's height is greater than or equal to a preset height, the main smoke plate is controlled to open to a third preset angle, and the auxiliary smoke plate is controlled to flip inward relative to the main smoke plate.

[0026] Beneficial effects of the present invention:

[0027] The range hood provided by the present invention is provided with a flip chamber assembly that can be flipped outward relative to the smoke collecting hood and a smoke collecting plate that can be flipped relative to the smoke collecting hood. When the smoke collecting plate and the flip chamber assembly are both flipped outward relative to the smoke collecting hood, the smoke collecting plate and the flip chamber assembly can enclose a smoke collecting space, and the smoke collecting space is in a more smoke-generating position, thereby improving the smoke collecting effect. At the same time, because the linkage driving mechanism only drives the smoke collecting plate to rotate when the opening angle of the smoke collecting plate is less than a first preset opening angle, there is no need to drive the flip chamber assembly to rotate. Therefore, when the smoke collecting plate is opened at a small angle, energy consumption is reduced and costs are reduced. When the opening angle of the smoke collecting plate is greater than the first preset opening angle, the smoke collecting plate and the flip chamber assembly are driven in linkage, which can effectively reduce driving costs and control difficulty. Furthermore, since the smoke inlet is arranged at the flip chamber assembly, the opening angle of the smoke collecting plate will not affect the size of the smoke inlet, thereby ensuring the oil fume extraction effect and improving the smoke collecting capacity of the range hood.

[0028] The range hood provided by the present invention can improve the oil fume extraction effect of the range hood by adopting the above-mentioned range hood, while reducing the driving cost of the range hood and saving energy consumption.

[0029] The control method of the range hood provided by the present invention can ensure the oil fume extraction effect of the range hood while reducing the driving cost of the range hood and saving energy consumption by controlling the opening angle of the smoke collecting plate to be less than or equal to a first preset angle when the current cooking state is a low smoke cooking state. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of the range hood provided in the first embodiment of the present invention when the smoke collecting device is in a closed state;

[0031] Figure 2 is a schematic structural diagram of a range hood provided by Embodiment 1 of the present invention when the smoke collecting device is in an open state;

[0032] Figure 3 is a partial structural schematic diagram of the smoke collecting device provided in the first embodiment of the present invention in a closed state;

[0033] Figure 4 A partial structural side view of the smoke collecting device provided in the first embodiment of the present invention in a closed state;

[0034] Figure 5 A partial structural side view of the smoke collecting device provided in the first embodiment of the present invention in an open state;

[0035] Figure 6 A schematic diagram of the structure of the smoke collecting device provided in the first embodiment of the present invention when in an open state;

[0036] Figure 7 for Figure 6 A partial enlarged view of point I in the middle;

[0037] Figure 8 A schematic diagram of the structure of the flip linkage mechanism provided in the first embodiment of the present invention;

[0038] Fig. 9 A schematic diagram of a portion of the structure of the smoke collecting device in a closed state provided in the second embodiment of the present invention;

[0039] Fig.10 A partial structural side view of the smoke collecting device provided in the second embodiment of the present invention in a closed state;

[0040] Fig.11 A partial structural side view of the smoke collecting device provided in the second embodiment of the present invention in an open state;

[0041] Fig.12 A structural side view of the smoke collecting device provided in the third embodiment of the present invention when it is in an open state and the auxiliary smoke plate is flush with the main smoke plate;

[0042] Fig.13 A structural side view of the smoke collecting device provided in the third embodiment of the present invention when it is in an open state and the auxiliary smoke plate is turned outward relative to the main smoke plate;

[0043] Fig.14 A structural side view of the smoke collecting device provided in the third embodiment of the present invention when it is in an open state and the auxiliary smoke plate is flipped inwards relative to the main smoke plate;

[0044] Fig.15 A flowchart of a control method provided in Embodiment 4 of the present invention;

[0045] Fig.16 A flowchart of a control method provided in Embodiment 5 of the present invention;

[0046] Fig.17 A flowchart of a control method provided in Embodiment 6 of the present invention;

[0047] Fig.18 A flow chart of a control method provided in Embodiment 7 of the present invention;

[0048] Fig.19 A schematic diagram of a range hood provided in Embodiment 7 of the present invention when in use by a user;

[0049] Fig. 20 A flow chart of a control method provided in Embodiment 8 of the present invention;

[0050] Fig.21 This is a flow chart of a control method provided in Embodiment 9 of the present invention.

[0051] In the figure:

[0052] 100, smoke collecting device; 200, bellows assembly; 300, oil cup; 400, stove; 500, cooking utensils;

[0053] 1. flap assembly; 11. smoke collecting plate; 111. main smoke plate; 112. auxiliary smoke plate; 12. smoke guide boss; 13. mounting support;

[0054] 2. Flip chamber assembly; 21. Smoke collecting inner frame; 211. Smoke collecting side; 2111. Side frame; 2112. Side baffle; 212. Smoke collecting top; 213. Bottom beam; 214. Smoke inlet; 215. Avoidance shaft hole; 22. Side slide rail; 23. Connecting hole; 231. Avoidance hole; 232. Actuating hole;

[0055] 3. linkage drive mechanism; 31. flip linkage member; 32. mounting rod; 321. main rod; 322. mounting plate; 33. transmission rod; 34. support rod; 35. limit rod; 36. connection assembly; 361. connection plate; 362. first shaft; 363. second shaft; 37. drive motor; 371. drive shaft; 372. convex shaft; 373. motor housing;

[0056] 4. Reset parts;

[0057] 5. Connecting assembly; 51. Sliding member; 52. First linkage member; 53. First hinge shaft; 54. Second hinge shaft; 55. Guide rail; 56. Second linkage member; 561. First connecting rod; 562. Second connecting rod;

[0058] 6. Smoke collecting hood; 61. Smoke collecting vertical part; 611. Back plate; 62. Smoke collecting horizontal part;

[0059] 7. Front panel; 8. Plate mounting seat; 9. Bottom mounting seat; 10. Fixed seat. DETAILED DESCRIPTION

[0060] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0061] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0063] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0064] Embodiment 1

[0065] The present embodiment provides a range hood, which can improve the oil fume suction effect, reduce the use cost of the range hood, and improve the user experience of the range hood while achieving the lightness and thinness of the range hood.

[0066] like Figures 1 to 3 As shown, the range hood includes a smoke collecting device 100 and a bellows assembly 200. The smoke collecting device 100 has a smoke collecting chamber and a front opening connected to the smoke collecting chamber, and the top of the smoke collecting device 100 has a smoke outlet connected to the smoke collecting chamber; the bellows assembly 200 is installed at the top of the smoke collecting device 100, and the bellows assembly 200 includes a bellows and a fan installed inside the bellows, the air inlet of the fan is connected to the smoke outlet, and a check valve is installed at the air outlet of the fan, and the air outlet end of the check valve is connected to a smoke exhaust pipe, and the smoke exhaust pipe extends out of the bellows to exhaust the oil smoke into the external environment.

[0067] The smoke collecting device 100 comprises a smoke collecting hood 6, a turnover chamber assembly 2, a flap assembly 1 and a linkage driving mechanism 3. The smoke collecting hood 6 has a smoke collecting chamber and a front opening, the flip chamber assembly 2 is movably mounted at the lower end in the smoke collecting hood 6 and the upper end can be flipped outward through the front opening, and the flip chamber assembly 2 has a smoke inlet 214 connected to the smoke collecting chamber; the flap assembly 1 comprises a smoke collecting plate 11, which is rotatably mounted at the front side of the smoke collecting hood 6 to open or close the smoke inlet 214 and the front opening; the linkage driving mechanism 3 is configured to only drive the smoke collecting plate 11 to rotate when the opening angle of the smoke collecting plate 11 is less than or equal to a first preset opening angle, and to drive the smoke collecting plate 11 and the turnover chamber assembly 2 to be linked to open outward or close inward when the opening angle of the smoke collecting plate 11 is greater than the first preset opening angle.

[0068] The smoke collecting device 100 and the range hood provided in the present embodiment are provided with a reversible chamber assembly 2 that can be turned outward relative to the smoke collecting hood 6 and a smoke collecting plate 11 that can be turned over relative to the smoke collecting hood 6, so that when the smoke collecting plate 11 and the reversible chamber assembly 2 are both turned over outward relative to the smoke collecting hood 6, the smoke collecting plate 11 and the reversible chamber assembly 2 can enclose a smoke collecting space, and the smoke collecting space is more smoke-generating, thereby improving the smoke collecting effect; at the same time, because the linkage driving mechanism 3 only drives the smoke collecting plate 11 when the opening angle of the smoke collecting plate 11 is less than the first preset opening angle, It can rotate without driving the flip chamber assembly 2 to rotate, so that when the smoke collecting plate 11 is opened at a small angle, energy consumption is reduced and costs are lowered. When the opening angle of the smoke collecting plate 11 is greater than the first preset opening angle, the smoke collecting plate 11 and the flip chamber assembly 2 are driven in linkage, which can effectively reduce driving costs and control difficulty. Furthermore, since the smoke inlet 214 is arranged at the flip chamber assembly 2, the opening angle of the smoke collecting plate 11 will not affect the size of the smoke inlet 214, thereby ensuring the oil fume extraction effect and improving the smoke collecting ability of the smoke collecting device 100.

[0069] In the present embodiment, the smoke collecting device 100 has a closed state, a first open state and a second open state. When the smoke collecting device 100 is in the closed state, the flip chamber assembly 2 is located in the smoke collecting chamber, and the smoke collecting plate 11 simultaneously closes the front opening and the smoke inlet 214 to ensure the overall aesthetic appearance of the smoke collecting device 100 and facilitate the cleaning of the smoke collecting device 100; when the smoke collecting device 100 is in the first open state, the flip chamber assembly 2 is located in the smoke collecting chamber, the smoke collecting plate 11 is flipped forward relative to the smoke collecting hood 6, and the smoke collecting plate 11 and the front side of the smoke collecting hood 6 are combined to form a smoke collecting space; when the smoke collecting device 100 is in the second open state, the upper end of the flip chamber assembly 2 extends out of the front opening, and the flip chamber assembly 2 cooperates with the smoke collecting plate 11 to form a smoke collecting space.

[0070] In order to reduce the overall thickness of the smoke collecting hood 6, the smoke collecting hood 6 has a smoke collecting vertical portion 61 and a smoke collecting horizontal portion 62 connected to the top of the smoke collecting vertical portion 61. The smoke collecting horizontal portion 62 extends forward from the top of the smoke collecting vertical portion 61, so that the smoke collecting hood 6 is in a "7" shape as a whole, thereby making the overall thickness of the smoke collecting hood 6 smaller, and the top has a sufficient width for installing a bellows, and the smoke collecting horizontal portion 62 can stop the smoke from escaping upward, thereby improving the smoke collecting effect. The front opening is arranged at the front side of the smoke collecting vertical portion 61. The front panel 7 on the front side of the smoke collecting hood 6 is located above the front opening, and when the smoke collecting device 100 is in a closed state, the front side of the smoke collecting plate 11 is located below the front panel 7, and the front side surface of the smoke collecting device 100 is arranged side by side with the front side surface of the front panel 7 and is substantially flush.

[0071] In order to collect the oil in the smoke collecting chamber, the range hood further includes an oil cup 300, which is mounted at the bottom of the smoke collecting hood 6. An oil discharge port is provided at the bottom of the smoke collecting chamber, and the oil discharge port is arranged facing the upper opening of the oil cup 300. It is worth noting that the structures of the oil cup 300 and the bellows assembly 200 can be arranged with reference to the prior art, which is not the focus of the present invention and will not be described in detail.

[0072] In order to simplify the structure of the smoke collecting device 100, in this embodiment, the lower end of the flip chamber assembly 2 is rotatably mounted in the smoke collecting chamber, thereby simplifying the disassembly and assembly of the flip chamber assembly 2 on the smoke collecting hood 6, and reducing the space occupied by the flip chamber assembly 2 in the smoke collecting hood 6. Specifically, the bottom of the smoke collecting chamber is provided with bottom mounting seats 9 on both the left and right sides of the flip chamber assembly 2, and the lower end of the flip chamber assembly 2 is rotatably mounted on the bottom mounting seats 9.

[0073] In other embodiments, the lower end of the flip chamber assembly 2 can rotate relative to the smoke collecting hood 6 and can slide relative to the smoke collecting hood 6 in the front-to-back direction or in the height direction of the smoke collecting hood 6 .

[0074] like Figure 4 and 5 As shown in the figure, a connecting hole 23 is opened on the side of the flip chamber assembly 2, and the linkage drive mechanism 3 includes a flip linkage member 31, a drive motor 37 and a transmission assembly. The transmission assembly is connected to the flip linkage member 31 and the cigarette collecting plate 11. The drive motor 37 drives the cigarette collecting plate 11 to rotate through the transmission assembly, while actuating the flip linkage member 31 to slide in the connecting hole 23 to drive the flip chamber assembly 2 to rotate.

[0075] This arrangement can be achieved by setting the shape of the connecting hole 23 and the matching relationship between the flip linkage 31 and the connecting hole 23, so that when the opening angle of the cigarette collecting plate 11 is less than or equal to the first preset opening angle, the sliding of the flip linkage 31 in the connecting hole 23 will not actuate the flip chamber assembly 2 to move, while when the opening angle of the cigarette collecting plate 11 is greater than the first preset opening angle, the sliding of the flip linkage 31 in the connecting hole 23 can actuate the flip chamber assembly 2 to move, thereby simplifying the matching structure between the flip chamber assembly 2 and the flip linkage assembly and reducing the difficulty of structural design; at the same time, the actuation of the flip chamber assembly 2 is achieved through the matching of the connecting hole 23 and the flip linkage 31, which not only can realize the opening control of the flip chamber assembly 2, but also is conducive to realizing the closing control of the flip chamber assembly 2, thereby ensuring the smooth opening and closing of the flip chamber assembly 2.

[0076] In other embodiments, a flexible member may be used to connect the cigarette collecting plate 11 and the flip chamber assembly 2 or the linkage drive mechanism 3 and the flip chamber assembly 2. When the opening angle of the cigarette collecting plate 11 is less than the first preset opening angle, the flexible member is in a relaxed state, so that the action of the linkage drive mechanism 3 or the cigarette collecting plate 11 will not be transmitted to the flip chamber assembly 2. When the opening angle of the cigarette collecting plate 11 is greater than the first preset angle, the flexible member is in a taut state, and the linkage drive mechanism 3 transmits the driving force to the flip chamber assembly 2 through the flexible member, so that the flip chamber assembly 2 flips and opens. Under this setting, a reset elastic member may be provided to realize the closing and resetting of the flip chamber assembly 2.

[0077] Specifically, the connecting hole 23 includes an avoidance hole portion 231 and an actuating hole portion 232 connected to the front end of the avoidance hole portion 231. The shape of the avoidance hole portion 231 is consistent with the running trajectory of the flip linkage 31 when the smoke collecting plate 11 is opened from a closed state to a first preset opening angle; when the opening angle of the smoke collecting plate 11 is less than the first preset opening angle, the flip linkage 31 slides along the avoidance hole portion 231, thereby making it possible for the flip linkage 31 to slide in the connecting hole 23 without driving the flip chamber assembly 2 to move; when the opening angle of the smoke collecting plate 11 is greater than the first preset angle, the flip linkage 31 slides in the actuating hole portion 232 to actuate the flip chamber assembly 2 to rotate.

[0078] The driving motor 37 drives the cigarette collecting plate 11 to flip forward through the transmission assembly, while driving the flip linkage 31 to move forward, thereby enabling the upper end of the flip chamber assembly 2 to move forward through the forward movement of the flip linkage 31, and further driving the upper end of the flip front assembly to flip forward; the driving motor 37 drives the cigarette collecting plate 11 to flip backward through the transmission assembly, while driving the flip linkage 31 to move backward, thereby, the backward movement of the flip linkage 31 drives the upper end of the flip chamber assembly 2 to move backward, and further drives the flip chamber assembly 2 to close and reset backward.

[0079] In this embodiment, the avoidance hole portion 231 is an arc-shaped hole opening toward the rotation axis of the smoke collecting plate 11, and the actuating hole portion 232 is a long hole extending along the height direction of the flip chamber assembly 2, thereby reducing the difficulty of opening the connecting hole 23, thereby reducing the requirements of the setting of the connecting hole 23 on the size of the flip chamber assembly 2 in the front-to-back direction, and improving the compactness of the structure.

[0080] Since the movement of the flip linkage 31 in the avoidance hole 231 will not drive the flip chamber assembly 2 to move when the smoke collecting plate 11 is flipped and closed, in order to ensure that the flip chamber assembly 2 is accurately and reliably reset, the smoke collecting device 100 also includes a reset member 4, which is used to apply a backward flipping elastic force to the flip chamber assembly 2 to avoid the flip chamber assembly 2 from being closed in place. Further, the reset member 4 is a spring, which extends in the front-to-back direction, the rear end of the spring is installed on the back plate 611 or the bottom of the smoke collecting chamber, and the front end of the spring is connected to the flip chamber assembly 2. In order to ensure the reliability of reset, multiple reset members 4 can be arranged at intervals along the left-right direction.

[0081] like Figures 3 to 6 As shown, the flip chamber assembly 2 includes two smoke-collecting side portions 211 that are opposite and spaced apart in the left-right direction and a smoke-collecting top portion 212 connected between the top ends of the two smoke-collecting side portions 211. The smoke-collecting side portions 211 and the smoke-collecting top portion 212 together form a smoke inlet 214. In the embodiment, a bottom beam 213 is connected between the lower ends of the two smoke-collecting side portions 211 to enhance the overall structural stability of the flip chamber assembly 2. In other embodiments, the bottom beam 213 may not be provided.

[0082] The smoke-collecting side portion 211 includes a side frame portion 2111 and a side baffle portion 2112 connected to the rear side of the side frame portion 2111 and extending backward. The thickness of the side frame portion 2111 in the left-right direction is greater than the thickness of the side baffle portion 2112 in the left-right direction. The connecting hole 23 is opened in the side frame portion 2111, which is beneficial to ensure the overall structural strength and rigidity of the flip chamber assembly 2 at the position where the connecting hole 23 is opened, and reduce the probability of deformation of the flip chamber assembly 2; at the same time, the side baffle portion 2112 is set to increase the depth of the smoke inlet 214, improve the smoke-collecting effect, reduce the probability of lateral escape of oil smoke, and can reduce the overall weight of the flip chamber assembly 2, thereby reducing the overall weight of the range hood.

[0083] In this embodiment, the flip linkage member 31 is a rod-shaped structure extending in the left-right direction, so as to facilitate the sliding setting of the flip linkage member 31 in the connection hole 23 and facilitate the connection between the flip linkage member 31 and the transmission assembly. The connection hole 23 runs through the left and right sides of the smoke collecting side portion 211, so as to reduce the processing difficulty of the connection hole 23 and improve the convenience of disassembly and assembly of the flip linkage member 31 in the connection hole 23.

[0084] like Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, in this embodiment, the transmission assembly includes a mounting rod 32 and a transmission rod 33, the first end of the mounting rod 32 is connected to the upper end of the smoke collecting plate 11 and the second end is hinged to the smoke collecting hood 6, the driving shaft 371 of the driving motor 37 is connected to the mounting rod 32; one end of the transmission rod 33 is hinged to the motor housing 373 of the driving motor 37, and the other end is connected to the flip linkage 31. When the driving shaft 371 of the driving motor 37 rotates, the mounting rod 32 is driven to rotate, thereby driving the smoke collecting plate 11 to rotate relative to the smoke collecting hood 6; because the driving shaft 371 of the driving motor 37 is connected to the mounting rod 32, the movement of the mounting rod 32 drives the driving motor 37 to move as a whole, so that the driving motor 37 drives the transmission rod 33 to move, and then drives the flip linkage 31 to move.

[0085] That is, the above-mentioned arrangement enables the driving motor 37 to move with the smoke collecting plate 11 while the flip chamber assembly 2 and the smoke collecting plate 11 are linked together; the transmission of the driving force of the driving motor 37 to the smoke collecting plate 11 is achieved by setting the mounting rod 32, and the transmission connection between the driving motor 37 and the flip linkage 31 is achieved by setting the transmission rod 33, and the relative position of the driving motor 37 relative to the rotation axis of the smoke collecting plate 11 and the upper end of the flip chamber assembly 2 can be set, so that the driving motor 37 can achieve the linked driving of the smoke collecting plate 11 and the flip chamber assembly 2 with a smaller driving force, and at the same time, the probability of interference between the smoke collecting plate 11 and the flip chamber assembly 2 can also be reduced; furthermore, since the driving motor 37 moves with the smoke collecting plate 11, the opening stroke of the smoke collecting plate 11 can be increased while reducing the space required for the activity of the driving motor 37, thereby reducing the overall footprint of the linkage driving mechanism 3, which is conducive to realizing the lightweight setting of the smoke collecting device 100 and the range hood. Since the driving shaft 371 of the driving motor 37 is connected to the mounting rod 32, the driving force of the driving motor 37 can directly overcome the gravity of the smoke collecting plate 11 and drive the smoke collecting plate 11 to rotate, and the flip chamber assembly 2 can be flipped with the assistance of gravity, saving the driving force of the driving motor 37 and facilitating the control of the driving stroke of the smoke collecting plate 11.

[0086] In other embodiments, the driving motor 37 can be installed on the smoke collecting hood 6, and the transmission assembly includes a first connecting rod group and a second connecting rod group. The first connecting rod group is connected between the driving motor 37 and the smoke collecting plate 11, so that the rotation of the driving motor 37 drives the smoke collecting plate 11 to rotate through the first connecting rod group; the second connecting rod group is connected between the smoke collecting plate 11 and the flipping linkage 31, so that the flipping of the smoke collecting plate 11 drives the flipping linkage 31 to move forward and backward.

[0087] The first end of the mounting rod 32 is fixedly connected to the back side of the smoke collecting plate 11, and the second end of the mounting rod 32 is hinged to the inner side of the smoke collecting hood 6. The mounting rod 32 is at least partially a bent rod structure that is bent inward and backward. The upper end edge of the front opening of the smoke collecting hood 6 is located in the concave space of the arc structure, which facilitates the connection between the mounting rod 32 and the smoke collecting plate 11 and the smoke collecting hood 6. Further, a plate mounting seat 8 is installed on the front side cavity wall of the smoke collecting chamber, and a mounting support 13 is provided on the back side of the smoke collecting plate 11. The first end of the mounting rod 32 is connected to the mounting support 13, and the second end is hinged to the plate mounting seat 8.

[0088] The mounting rod 32 includes a main rod 321 and a mounting plate 322. The main rod 321 is at least partially bent backwards. The lower end of the main rod 321 is connected to the smoke collecting plate 11 and the upper end is connected to the smoke collecting hood 6. The mounting plate 322 is detachably connected to the main rod 321, and the drive shaft 371 is connected to the mounting plate 322. By providing the detachably connected main rod 321 and the mounting plate 322, it is convenient to set and adjust the connection position of the drive motor 37 on the mounting rod 32, thereby improving the convenience and reliability of the connection between the mounting rod 32 and the drive motor 37. In other embodiments, the main rod 321 and the mounting plate 322 can also be integrally formed.

[0089] Specifically, the mounting plate 322 is connected to the rear bent portion of the mounting rod 32. In the front-to-back direction, the drive shaft 371 is spaced apart on the rear side of the upper end of the main rod 321. In the vertical direction, the drive shaft 371 is located between the two ends of the main rod 321, that is, the rotation axis of the mounting rod 32, the connection position between the mounting plate 322 and the main rod 321, and the drive shaft 371 are spaced apart in sequence from front to back.

[0090] The driving motor 37 is higher than the upper end of the flip chamber assembly 2, the upper end of the transmission rod 33 is connected to the driving motor 37, the transmission rod 33 extends downward from top to bottom and the front end is connected to the flip linkage 31. Specifically, the motor housing 373 of the driving motor 37 is protrudingly provided with a convex shaft 372, and the upper end of the transmission rod 33 is rotatably sleeved on the convex shaft 372. The convex shaft 372 and the driving shaft 371 are respectively protrudingly provided on opposite sides of the motor housing 373. Preferably, the axes of the convex shaft 372 and the driving shaft 371 are parallel and spaced apart to avoid dead points during movement, thereby improving the driving reliability of the driving motor 37 on the smoke collecting plate 11 and the flip chamber assembly 2. Further, when the smoke collecting device 100 is in a closed state, in the front-to-back direction, the convex shaft 372 is located in front of the driving shaft 371, and the transmission rod 33 is located in front of the driving motor 37 as a whole.

[0091] When the drive shaft 371 of the drive motor 37 rotates, the lower end of the main rod 321 flips forward under the driving action of the drive motor 37, and the drive motor 37 moves downward as a whole, thereby causing the upper end of the transmission rod 33 to move downward, driving the lower end of the drive motor 37 to move forward, that is, driving the upper end of the flip chamber assembly 2 to move forward. When the drive shaft 371 of the drive motor 37 rotates in the opposite direction, the drive shaft 371 drives the lower end of the main rod 321 to move backward, thereby driving the cigarette holding plate 11 to close; at the same time, the drive motor 37 is raised as a whole, causing the upper end of the transmission rod 33 to rise, and the lower end of the transmission rod 33 moves backward, thereby driving the flip linkage 31 to move backward, prompting the upper end of the flip chamber assembly 2 to move backward and reset. This arrangement saves more driving force of the drive motor 37, and when the cigarette holding plate 11 is flipped open, the distance between the flip chamber assembly 2 and the upper end of the cigarette holding plate 11 can be reduced, thereby improving the cigarette holding effect. In other embodiments, the transmission rod 33 may also be a bent rod structure or other forms of rod-shaped structures.

[0092] In order to further improve the operational stability of the flip chamber assembly 2, the transmission assembly further includes a support rod 34, the lower end of which is connected to the flip linkage 31, and the support rod 34 is connected to the smoke hood 6. This arrangement enables the upper end of the flip chamber assembly 2 to be supported on the smoke hood 6 through the support rod 34, avoiding the problem that the upper end of the flip chamber assembly 2 is only suspended and supported on the drive motor 37 through the transmission rod 33, resulting in excessive force on the drive motor 37 and thus causing damage, thereby improving the setting stability and reliability of the flip chamber assembly 2, and also improving the service life of the drive motor 37.

[0093] Specifically, a fixing seat 10 is installed on the inner side of the smoke hood 6, the upper end of the support rod 34 is hinged to the fixing seat 10, and the lower end is connected to the flip linkage 31. The support rod 34 is preferably a U-shaped structure with the opening facing forward, which is conducive to avoiding interference between the support rod 34 and the smoke hood 6. The lower end of the support rod 34 is sleeved on the flip linkage 31.

[0094] In this embodiment, the linkage drive mechanism 3 further includes a limit rod 35, the first end of which is connected to the mounting rod 32, and the second end of which is connected to the flip linkage 31. The limit rod 35 limits the maximum flip angle of the flip chamber assembly 2 and the smoke collecting plate 11, and the hinge axis of the second end of the limit rod 35 is parallel to and spaced from the hinge axis of the upper end of the transmission rod 33. When the driving motor 37 drives the flip linkage 31 to move, the movement of the flip linkage 31 drives the limit rod 35 to rotate relative to the mounting rod 32. Since the limit rod 35 is hinged to the mounting rod 32, the rotation stroke of the flip chamber assembly 2 is limited by the limit rod 35. Therefore, the setting of the limit rod 35 can limit the activity stroke of the flip chamber assembly 2, thereby limiting the maximum opening angle of the smoke collecting plate 11 relative to the smoke collecting hood 6.

[0095] The lower end of the limiting rod 35 is sleeved on the flip linkage 31 to improve the connection convenience. The limiting rod 35 is preferably an arc-shaped structure with an opening facing forward, which is simple in structure and convenient to set. However, it can be understood that the shape of the limiting rod 35 can be specifically limited according to the maximum stroke required to open the smoke collecting plate 11. Furthermore, one limiting rod 35 is set on each of the left and right sides of the mounting rod 32 to ensure the limiting effect and limiting stability, and reduce the probability of the limiting rod 35 being damaged by force.

[0096] When the smoke collecting plate 11 closes the smoke inlet 214, in the front-to-back direction, the upper end of the limiting rod 35, the upper end of the transmission rod 33 and the drive shaft 371 are sequentially arranged at intervals from front to back, thereby improving the reliability of linkage and limiting. That is, when the smoke collecting plate 11 closes the smoke inlet 214, in the front-to-back direction, the rotation axis of the smoke collecting plate 11, the hinge axis of the limiting rod 35 and the mounting rod 32, the first end of the transmission rod 33 and the axis of the drive shaft 371 are sequentially arranged in parallel and at intervals from front to back. Further, in the vertical direction, the axis of the drive shaft 371 is located between the two ends of the limiting rod 35, thereby increasing the length of the limiting rod 35 on the basis of the relative position of the drive motor 37 of the flip linkage 31 being unchanged, thereby avoiding the problem that the limiting rod 35 is too short and the maximum flip angle of the flip chamber assembly 2 is small.

[0097] The linkage drive mechanism 3 is provided on each of the left and right sides of the flip chamber assembly 2, wherein one linkage drive mechanism 3 is provided with a drive motor 37, and the mounting rod 32 and the transmission rod 33 of the other linkage drive mechanism 3 are connected by a connecting assembly 36, thereby making the left and right ends of the smoke collecting plate 11 supported on the smoke collecting hood 6 by the mounting rod 32, and the left and right ends of the flip chamber assembly 2 are supported on the smoke collecting hood 6 by the connecting shaft, thereby ensuring the setting stability of the smoke collecting plate 11, and at the same time being able to reduce the number of drive motors 37 and reduce the drive cost. In other embodiments, the mounting rods 32 and the transmission rods 33 in the two sets of linkage drive mechanisms 3 can be connected by the drive motor 37.

[0098] In this embodiment, the connecting assembly 36 includes a connecting plate 361 and a first shaft portion 362 and a second shaft portion 363 protruding from opposite sides of the connecting plate 361, the first shaft portion 362 is connected to the mounting rod 32, and the second shaft portion 363 is hinged to the transmission rod 33; the driving shaft 371 is connected to the mounting rod 32, the first shaft portion 362 is coaxially arranged with the driving shaft 371, and the second shaft portion 363 is coaxially arranged with the hinge axis of the motor housing 373. In this way, the two sets of linkage drive mechanisms 3 can act synchronously, ensuring the stability of the movement of the left and right ends of the cigarette collecting plate 11 and the flip chamber assembly 2.

[0099] In this embodiment, a side smoke baffle is provided in the smoke collecting chamber, and one side smoke baffle is provided on each of the left and right sides of the front opening. The drive motor 37 and the transmission assembly are both located on the side of the side smoke baffle away from the flip chamber assembly 2 to prevent the oil smoke from flowing toward the drive motor 37 and the transmission assembly.

[0100] like Figure 3 and Figure 5 As shown, in order to improve the smoke collecting and smoke diversion effects when the smoke collecting plate 11 is opened, a smoke guiding boss 12 is protruding from the rear side of the smoke collecting plate 11. The smoke guiding boss 12 extends in the left-right direction, and a smoke guiding surface is formed on the side of the smoke guiding boss 12 away from the smoke collecting plate 11. When the smoke collecting plate 11 is in a closed state, the smoke collecting plate 11 closes the smoke inlet 214, and the smoke guiding boss 12 is located in the smoke inlet 214 of the flip chamber assembly 2, so as to avoid the smoke guiding boss 12 interfering with the flip chamber assembly 2, and also to avoid the setting of the smoke guiding boss 12 occupying additional space in the smoke collecting chamber; when the smoke collecting plate 11 is in an open state, the upper end of the smoke guiding boss 12 is close to the upper side of the smoke inlet 214, and the smoke guiding surface of the smoke guiding boss 12 guides the oil smoke to flow toward the smoke inlet 214, so as to improve the smoke collecting and oil guiding effects; at the same time, the setting of the smoke guiding boss 12 can reduce the probability of the oil smoke escaping upward through the gap between the upper end of the flip chamber assembly 2 and the smoke collecting plate 11, and further improve the smoke collecting effect. Only one smoke guiding boss 12 can be set, or multiple smoke guiding bosses 12 can be set along the left and right defense lines.

[0101] Embodiment 2

[0102] This embodiment provides a smoke collecting device 100 and a range hood, and the smoke collecting device 100 provided in this embodiment is a further improvement based on the smoke collecting device 100 in the first embodiment, and this embodiment will not repeat the same structure as the first embodiment.

[0103] like Figures 9 to 11 As shown, in the present embodiment, the flip chamber assembly 2 includes an installation outer frame and a smoke collecting inner frame 21. The lower end of the installation outer frame is rotatably installed inside the smoke collecting hood 6. The smoke collecting inner frame 21 can be slidably installed on the installation outer frame along the height direction of the installation outer frame so that the upper end of the smoke collecting inner frame 21 is close to or away from the smoke collecting plate 11. The smoke collecting inner frame 21 has a smoke inlet 214, and the linkage drive mechanism 3 is connected to the installation outer frame.

[0104] The smoke collecting device 100 provided in the present embodiment has an inner smoke collecting frame 21 which can slide relative to the outer mounting frame to approach the smoke collecting plate 11. When the smoke collecting plate 11 is opened relative to the smoke collecting hood 6, the inner smoke collecting frame 21 can slide closer to the smoke collecting plate 11, thereby increasing the size of the smoke collecting space and improving the smoke collecting effect. At the same time, this arrangement can avoid the overall height of the flip chamber assembly 2 being too high when the smoke collecting device 100 is in a closed state, thereby reducing the height requirement for the front opening. Furthermore, the inner smoke collecting frame 21 is slidably arranged inside the outer mounting frame, so that the inner smoke collecting frame 21 and the outer mounting frame can be flipped outward as a whole, and the inner smoke collecting frame 21 can slide relative to the outer mounting frame in the height direction to approach or move away from the smoke collecting plate 11, thereby achieving a certain degree of structural decoupling of the sliding and rotating movements, thereby improving the operating reliability of the flip chamber assembly 2.

[0105] In this embodiment, a connecting assembly 5 is connected between the smoke collecting plate 11 and the smoke collecting inner frame 21 , and the connecting assembly 5 is configured to pull the upper end of the smoke collecting inner frame 21 close to the smoke collecting plate 11 when the smoke collecting plate 11 is flipped open relative to the smoke collecting hood 6 .

[0106] That is, in this embodiment, the opening of the cigarette collecting plate 11 drives the cigarette collecting inner frame 21 to automatically move upward through the coupling assembly 5, thereby realizing the linkage action of the opening of the cigarette collecting inner frame 21 and the cigarette collecting plate 11, and there is no need to set an additional driving structure for the sliding of the cigarette collecting inner frame 21, thereby reducing costs and simplifying the overall control of the cigarette collecting device 100. In other embodiments, a sliding driving member may be provided, which drives the cigarette collecting inner frame 21 to slide relative to the mounting outer frame.

[0107] In this embodiment, the mounting outer frame includes two side slide rails 22 that are opposite and spaced apart, one side slide rail 22 is provided on each of the left and right sides of the smoke collecting inner frame 21, and the lower end of the side slide rail 22 is rotatably connected to the smoke collecting hood 6, the extension direction of the side slide rail 22 is consistent with the height direction of the smoke collecting inner frame 21, and the left and right sides of the smoke collecting inner frame 21 are respectively slidably mounted on the two side slide rails 22. This can simplify the structure of the flip chamber assembly 2 and reduce the weight of the flip chamber assembly 2.

[0108] Furthermore, a connecting hole 23 is provided on the side slide rail 22, and avoidance shaft holes 215 are provided on the left and right sides of the smoke collecting inner frame 21, and the extension direction of the avoidance shaft hole 215 is consistent with the extension direction of the connecting hole 23. The connecting hole 23 and the avoidance shaft hole 215 are at least partially aligned, and the flip linkage 31 is penetrated in the avoidance shaft hole 215. The provision of the avoidance shaft hole 215 can reduce the coordination requirements between the flip chamber assembly 2 and the flip linkage 31, and avoid interference between the structures.

[0109] In this embodiment, the connecting assembly 5 includes a sliding member 51 and a first linkage member 52. The sliding member 51 can be slidably installed on the cigarette collecting plate 11 along the height direction of the cigarette collecting plate 11. The two ends of the first linkage member 52 are respectively hinged to the sliding member 51 and the upper end of the flip chamber assembly 2.

[0110] That is, when the cigarette collecting plate 11 is flipped open, the cigarette collecting inner frame 21 and the side slide rail 22 are driven by the flipping linkage 31 to rotate. Since the first linkage 52 is connected between the cigarette collecting inner frame 21 and the sliding member 51, and is limited by the length of the first linkage 52, when the cigarette collecting inner frame 21 and the cigarette collecting plate 11 rotate, the sliding member 51 slides downward along the cigarette collecting plate 11, thereby driving the cigarette collecting inner frame 21 to slide upward relative to the side slide rail 22 and approach the cigarette collecting plate 11, thereby increasing the depth of the smoke collecting space and improving the smoke collecting effect.

[0111] In this embodiment, the top of the cigarette holding inner frame 21 is hinged to the first linkage member 52, which is more conducive to controlling the position of the cigarette holding inner frame 21 relative to the cigarette holding plate 11, and can avoid interference between the first linkage member 52 and the smoke guide boss 12 on the back side of the cigarette holding plate 11. In other embodiments, the cigarette holding inner frame 21 can also be hinged to the first linkage member 52 at other positions. Further, when the cigarette holding plate 11 is in a closed state, the first linkage member 52 extends straight from front to back or extends upward from front to back, so that when the sliding member 51 slides downward relative to the cigarette holding plate 11, the cigarette holding inner frame 21 will be pulled upward and close to the cigarette holding plate 11.

[0112] In order to improve the sliding convenience of the sliding member 51, in the present embodiment, a guide track 55 is installed on the back side of the cigarette collecting plate 11, and the guide track 55 extends along the height direction of the cigarette collecting plate 11. A guide groove is provided on the guide track 55, and the sliding member 51 is slidably installed in the guide groove to ensure the sliding stability and reliability of the sliding member 51.

[0113] In order to improve the connection convenience between the first linkage member 52 and the cigarette holding inner frame 21 and the sliding member 51, a first hinge shaft 53 is connected to the cigarette holding inner frame 21, and a second hinge shaft 54 ​​is connected to the sliding member 51. The two ends of the first linkage member 52 are respectively sleeved on the first hinge shaft 53 and the second hinge shaft 54. The first hinge shaft 53 and the second hinge shaft 54 ​​can be, but are not limited to, pins or other structures that can realize the hinge connection of the first linkage member 52.

[0114] In the present embodiment, the smoke collecting inner frame 21 includes two smoke collecting side portions 211 that are opposite to and spaced apart in the left-right direction and a smoke collecting top portion 212 connected between the top ends of the two smoke collecting side portions 211. The smoke collecting side portions 211 have side baffle portions 2112 extending backwards, and the side baffle portions 2112 extend backwards from the side slide rails 22 to prevent the smoke from flowing to the side slide rails 22 and causing more smoke to adhere to the side slide rails 22, thereby preventing the side frame portions 2111 and the side slide rails 22 from sticking together and affecting the sliding of the smoke collecting inner frame 21, thereby improving the sliding smoothness of the smoke collecting inner frame 21.

[0115] In order to ensure the stability and smoothness of the movement of the smoke collecting inner frame 21 , at least two connecting components 5 are arranged at intervals along the left-right direction to ensure the stability of the force applied to the smoke collecting inner frame 21 .

[0116] Embodiment 3

[0117] The present embodiment provides a smoke collecting device 100 and a range hood including the smoke collecting device 100 , and the smoke collecting device 100 provided in the present embodiment is substantially the same as the smoke collecting device 100 in the second embodiment, with only some differences in configuration, and the present embodiment will not repeat the same structure as the second embodiment.

[0118] like Figure 12 to Figure 14 As shown, in this embodiment, the smoke collecting plate 11 includes a main smoke plate 111 and an auxiliary smoke plate 112 hinged to the lower end of the main smoke plate 111, the upper end of the main smoke plate 111 is rotatably mounted on the smoke collecting hood 6, and the main smoke plate 111 and the auxiliary smoke plate 112 cooperate to close or open the front opening, and the linkage drive mechanism 3 is connected between the main smoke plate 111 and the flip chamber assembly 2.

[0119] That is, in this embodiment, the smoke collecting plate 11 has a flat state in which the main smoke plate 111 and the auxiliary smoke plate 112 are arranged flush and side by side, and a non-flat state in which the auxiliary smoke plate 112 is flipped relative to the main smoke plate 111 . When the smoke collecting plate 11 is in a flat state, the smoke collecting plate 11 can cooperate to close the smoke inlet 214, and the angle between the main smoke plate 111 and the auxiliary smoke plate 112 is 180°; when the auxiliary smoke plate 112 flips relative to the main smoke plate 111 in a direction away from the flip chamber assembly 2, due to the increase in the distance between the auxiliary smoke plate 112 and the smoke collecting inner frame 21, the smoke collecting range can be increased and the smoke collecting effect is improved; when the auxiliary smoke plate 112 flips relative to the main smoke plate 111 in a direction toward the flip chamber assembly 2, the maximum distance that the smoke baffle extends forward from the front side of the smoke collecting hood 6 can be reduced, thereby avoiding the smoke baffle blocking the user's line of sight during cooking; when the auxiliary smoke plate 112 flips inward relative to the main smoke plate 111, the distance of the front end of the smoke collecting plate 11 can be moved back, thereby avoiding the smoke collecting plate 11 blocking the user's line of sight.

[0120] In this embodiment, the connecting assembly 5 is connected between the auxiliary smoke plate 112 and the smoke collecting inner frame 21 so that when the auxiliary smoke plate 112 is flipped relative to the main smoke plate 111 in a direction away from the flip chamber assembly 2, the upper end of the smoke collecting inner frame 21 is driven close to the main smoke plate 111.

[0121] That is, the auxiliary smoke plate 112 and the smoke collecting inner frame 21 are arranged in linkage, so that when the flap assembly 1 rotates as a whole around the first axis, the flip chamber assembly 2 rotates as a whole around the second axis, while the smoke collecting inner frame 21 and the mounting outer frame are relatively stationary (or the smoke collecting inner frame 21 slides slightly relative to the mounting outer frame); when the auxiliary smoke plate 112 rotates relative to the main smoke plate 111, the smoke collecting inner frame 21 is driven to slide relative to the mounting outer frame, so that the auxiliary smoke plate 112 is turned outward and the smoke collecting inner frame 21 is moved close to the main smoke plate 111 at the same time, which effectively increases the volume of the smoke collecting space, improves the smoke collecting effect, and reduces the difficulty of controlling the smoke collecting mechanism.

[0122] In another embodiment, the connecting assembly 5 can also be connected between the main cigarette plate 111 and the cigarette collecting inner frame 21, that is, when the cigarette collecting plate 11 flips around the first axis, the upper end of the cigarette collecting inner frame 21 is driven close to the main cigarette plate 111 through the connecting assembly 5.

[0123] In another embodiment, the flip chamber assembly 2 may also adopt the structure in the first embodiment, that is, the rotation of the auxiliary cigarette plate 112 relative to the main cigarette plate 111 is separated from the flip chamber assembly 2. In another embodiment, the flipping of the auxiliary cigarette plate 112 relative to the main cigarette plate 111 and the sliding of the cigarette collecting inner frame 21 relative to the mounting outer frame can be controlled separately.

[0124] The connecting assembly 5 includes a sliding member 51 , a driving member, a first linkage member 52 and a second linkage member 56 . The first linkage member 52 is connected between the sliding member 51 and the cigarette collecting inner frame 21 , and the second linkage member 56 is connected between the cigarette auxiliary plate 112 and the sliding member 51 .

[0125] Specifically, when the sliding member 51 slides downward, the upper end of the smoke-collecting inner frame 21 is driven to approach the main smoke plate 111 through the first linkage member 52, and the auxiliary smoke plate 112 is driven to flip in the direction away from the flip chamber assembly 2 through the second linkage member 56, and when the sliding member 51 slides upward, the upper end of the smoke-collecting inner frame 21 is moved away from the main smoke plate 111 and the auxiliary smoke plate 112 is flipped in the direction toward the flip chamber assembly 2.

[0126] The driving member drives the sliding member 51 to slide, and the linkage between the auxiliary cigarette plate 112 and the cigarette holding inner frame 21 is realized through the cooperation of the sliding member 51, the first linkage member 52 and the second linkage member 56, which can simplify the structure of the coupling assembly 5 and reduce the difficulty of setting the driving member. In other embodiments, the driving member can use a connecting rod assembly or other transmission structure to realize the linkage setting between the cigarette holding inner frame 21 and the auxiliary cigarette plate 112.

[0127] Furthermore, two ends of the first linkage member 52 are respectively hinged to the smoke collecting inner frame 21 and the sliding member 51. The specific arrangement of the first linkage member 52 and the sliding member 51 can be made with reference to the second embodiment.

[0128] The second linkage member 56 includes a first link 561 and a second link 562, one end of the first link 561 is hinged to the sliding member 51, the second end of the first link 561 is hinged to the first end of the second link 562, and the second end of the second link 562 is hinged to the auxiliary cigarette plate 112. The structure of the second linkage member 56 is simple and convenient to set. It is worth noting that the driving member can adopt a gear rack structure, a screw nut structure or other existing transmission structures to drive the sliding member 51 to slide, and the driving member can also be a linear drive structure.

[0129] Preferably, at least two coupling assemblies 5 are arranged at intervals along the left-right direction to improve the force stability of the smoke-collecting inner frame 21 and the smoke-assisting plate 112. The specific number and position of the coupling assemblies 5 can refer to the second embodiment.

[0130] Embodiment 4

[0131] This embodiment provides a control method for a range hood, which is applied to the range hood provided in the above embodiments.

[0132] The control method of the range hood provided in this embodiment includes: controlling the opening angle of the smoke collecting plate 11 according to the cooking state, and when the current cooking state is a low smoke cooking state, controlling the opening angle of the smoke collecting plate 11 to be less than or equal to a first preset opening angle.

[0133] That is, the control method provided in this embodiment, if the current cooking state is a low smoke cooking state, it indicates that the amount of oil smoke generated by the current cooking is small, and the opening angle of the smoke collecting plate 11 can be controlled to be less than or equal to the first preset opening angle, which can reduce costs and save energy while ensuring the oil fume extraction effect.

[0134] In this embodiment, the control method further includes: detecting the amount of oil smoke in real time, and when the detected amount of oil smoke is less than or equal to a first preset amount of oil smoke, determining that the current cooking state is a low-smoke cooking state.

[0135] By detecting the amount of oil smoke, it is determined whether the current cooking state is a low-smoke cooking state. The control method is relatively direct, and the judgment structure of the smoke volume is relatively accurate, which can improve the control accuracy and thus more effectively ensure the oil fume extraction effect.

[0136] Specifically, a smoke collection device 100 is provided with a smoke concentration sensor, which is communicatively connected to the controller of the range hood. The smoke concentration sensor can detect the amount of oil smoke in real time. When the detected amount of oil smoke is small, the opening angle of the smoke collection plate 11 is controlled to be less than or equal to the first preset angle.

[0137] In another embodiment, the control method includes: obtaining the current cooking mode, and judging the current cooking state according to the current cooking mode. Under this setting, the user can select the cooking mode, and the controller predicts the amount of oil smoke generated during the cooking process according to the cooking mode selected by the user, thereby controlling the opening size of the smoke collecting plate 11. For example, the range hood has a daily mode and a stir-fry mode, etc. When the current cooking mode is the daily mode, it is judged that the amount of oil smoke generated by cooking will be lower than the first preset amount of oil smoke.

[0138] In another embodiment, the control method includes: obtaining the current firepower, and judging the current cooking state according to the current firepower. That is, by detecting the firepower of the current stove, the amount of oil smoke that may be generated can be predicted. For example, the stove has a low gear, a medium gear and a high gear. When the stove is in the low gear, the firepower is small, so the current cooking state can be judged as a low oil smoke cooking state. Alternatively, the current firepower can be judged by detecting the temperature of the cooking utensil 500, and the current cooking state can be judged according to the firepower.

[0139] That is, in other embodiments, a Bluetooth module or other wireless communication module may be provided on the range hood to realize the linkage setting between the range hood and the stove.

[0140] Furthermore, the control method includes: when the current cooking state is a low smoke cooking state, controlling the smoke collecting plate 11 to open at a first preset opening angle, thereby reducing the control difficulty of the smoke collecting plate 11, simplifying the control logic of the range hood, and reducing the control cost.

[0141] The control method further includes: when the current cooking state is a medium smoke cooking state or a large smoke cooking state,

[0142] The cigarette holding plate 11 is opened to a second preset opening angle, and the second preset opening angle is greater than the first preset opening state.

[0143] This arrangement allows the smoke collecting plate 11 to open at an increased angle when a relatively large amount of smoke is generated during cooking, and the upper end of the flip chamber assembly 2 to flip outward to increase the size of the smoke collecting space, thereby improving the smoke collecting capacity and ensuring the exhaust effect.

[0144] Specifically, Fig.15 As shown, the control method includes the following steps:

[0145] S101, obtaining the current cooking status;

[0146] S102, determining whether it is in low smoke cooking state, if so, executing step S103, if not, executing step S104;

[0147] S103, controlling the opening angle of the smoke collecting plate 11 to be less than or equal to a first preset opening angle;

[0148] S104, controlling the opening angle of the smoke collecting plate 11 to be greater than or equal to a preset opening angle.

[0149] Furthermore, when the current cooking state is a medium smoke cooking state, the smoke collecting plate 11 is controlled to open to a second preset opening angle; when the current cooking state is a high smoke cooking state, the smoke collecting plate 11 is controlled to open to a third preset opening angle, and the third preset opening angle is greater than the second preset opening angle, so that the greater the amount of oil smoke, the greater the opening angle of the smoke collecting plate 11 and the opening angle of the flip chamber assembly 2.

[0150] The control method provided in this embodiment is applicable to the control of any range hood in Embodiments 1 to 3, and this embodiment will not introduce the specific structure of the range hood.

[0151] Embodiment 5

[0152] This embodiment provides a control method for a range hood, and the control method provided in this embodiment is a further improvement based on the control method in the fourth embodiment. This embodiment will not repeat the same structure as the above embodiment.

[0153] In this embodiment, the smoke collecting plate 11 includes a main smoke plate 111 and an auxiliary smoke plate 112 hinged to the lower end of the main smoke plate 111. The upper end of the main smoke plate 111 is rotatably mounted on the smoke collecting hood 6, and the linkage driving mechanism 3 acts on the main smoke plate 111. That is, the control method provided in this embodiment is applied to the range hood mentioned in the third embodiment.

[0154] The control method further includes: when a preset expansion condition is met, controlling the auxiliary smoke plate 112 to flip relative to the main smoke plate 111 in a direction away from the smoke collecting hood 6 .

[0155] In some cases, when the amount of oil smoke is large and the current opening angle of the main smoke plate 111 cannot meet the oil smoke extraction demand well, the smoke collecting space can be increased and the smoke collecting effect can be improved by controlling the auxiliary smoke plate 112 to flip outward relative to the main smoke plate 111. Compared with the conventional method of only increasing the opening angle of the main smoke plate 111 relative to the smoke collecting hood 6 to increase the smoke collecting space, the adjustment range of the smoke collecting space is larger, and the adjustment method is more flexible and diverse, which can better meet the user's adjustment needs for the smoke collecting range.

[0156] Usually, when the opening angle of the main smoke plate 111 is less than the first preset opening angle, the smoke collecting space formed by the smoke collecting plate 11 and the smoke collecting hood 6 is small. If capacity expansion is required at this time, it is preferred to increase the opening angle of the main smoke plate 111, and at the same time as controlling the main smoke plate 111 to flip outward, pull the flip chamber assembly 2 outward to increase the smoke collecting space; when the opening angle of the smoke collecting plate 11 is relatively large, the smoke collecting plate 11 may not be able to continue to increase the opening angle, or increasing the opening angle may easily block the user's line of sight, so that it is more appropriate to increase the expansion space by flipping the auxiliary smoke plate 112 outward relative to the main smoke plate 111. The expansion space can be increased by flipping the auxiliary smoke plate 112 outward relative to the main smoke plate 111.

[0157] The preset expansion conditions include:

[0158] The opening angle of the main smoke panel 111 reaches the maximum opening angle and the current operating wind force does not meet the oil smoke extraction demand;

[0159] Or, the opening angle of the main smoke panel 111 is greater than or equal to the second preset angle, and the current operating wind force does not meet the oil smoke extraction demand;

[0160] Alternatively, the opening angle of the main cigarette panel 111 is greater than or equal to the second preset angle and there is a risk of blocking the user's vision if the main cigarette panel 111 continues to flip.

[0161] Specifically, Fig.16 As shown, the control method includes the following steps:

[0162] S201, obtaining the current cooking status;

[0163] S202, determining whether it is in low smoke cooking state, if so, executing step S203, if not, executing step S204;

[0164] S203, controlling the cigarette collecting plate 11 to open to a first angle, and controlling the auxiliary cigarette plate 112 to be flush with the main cigarette plate 111;

[0165] S204, controlling the smoke collecting plate 11 to open to a second angle;

[0166] S205, determine whether the preset expansion condition is met, if yes, execute step S206, if no, return to step S201;

[0167] S206 , controlling the auxiliary smoke plate 112 to flip outward relative to the main smoke plate 111 .

[0168] It is worth noting that the outward turning angle of the auxiliary smoke plate 112 relative to the main smoke plate 111 can be fixed or determined according to the amount of oil smoke.

[0169] Embodiment 6

[0170] This embodiment provides a control method, and the control method provided in this embodiment is a further improvement based on the control method provided in the fifth embodiment. This embodiment will not repeat the same technical solution as that in the fifth embodiment.

[0171] like Fig.17 As shown, in this embodiment, a smoke concentration sensor is provided in the range hood to detect the smoke concentration, and an air volume sensor is provided at the air inlet of the fan or the smoke exhaust port of the smoke collection device 100 to detect the actual operating air volume.

[0172] To simplify the judgment, in the present embodiment, a plurality of different smoke concentration intervals, a plurality of air volume intervals and a plurality of preset opening angle values ​​are preset in the controller.

[0173] Control methods include:

[0174] During the cooking process, the smoke concentration and actual operating air volume are detected in real time;

[0175] According to the preset smoke range of the detected smoke value and the air volume range of the actual operating air volume value, it is determined whether the preset expansion conditions are met.

[0176] That is, the control method provided in this embodiment can combine the detected smoke concentration value and the current actual operating air volume to judge the target smoke collection state required for the current cooking state, and combine the opening angle of the main smoke plate 111 and the angle of the auxiliary smoke plate 112 relative to the main smoke plate 111 to comprehensively adjust the smoke collection state of the smoke collection device 100, thereby ensuring the smoke collection effect while reducing the demand on the fan and improving the performance of the range hood.

[0177] The control methods specifically include:

[0178] According to the smoke density range in which the detected smoke density value is located, the target opening angle and target wind speed of the main smoke panel 111 are obtained;

[0179] Rotate the main smoke panel 111 to the target opening angle and adjust the wind speed of the fan to the target wind speed;

[0180] According to the preset smoke range of the detected smoke value and the air volume range of the actual operating air volume value, it is determined whether the preset expansion conditions are met.

[0181] Exemplarily, the controller is preset with four smoke concentration thresholds, namely, a first preset concentration value a, a second preset concentration value b, a third preset concentration value c and a fourth preset concentration value d. Correspondingly, there are five smoke and fog intervals, namely, [a), [ab), [bc), [cd) and [d+∞);

[0182] There are three preset opening angle values ​​preset in the controller, namely the first preset opening angle, the second preset opening angle and the maximum preset opening angle;

[0183] There are four preset air volume thresholds in the controller, namely the first preset air volume value a`, the second preset air volume value b`, the third preset air volume value c`, and the fourth preset air volume value d`. Correspondingly, there are five air volume intervals, namely [a`), [a`b`), [b`c`), [c`d`) and [d`+∞).

[0184] The control methods specifically include:

[0185] The range hood is started, and the smoke collecting plate 11 is flipped to a first preset angle;

[0186] Real-time detection of smoke concentration value X and actual operating air volume value Y;

[0187] When x≤the first preset concentration value and y≤the first preset air volume value, the smoke collecting plate 11 is controlled to open to the first preset angle and the auxiliary smoke plate 112 is flush with the main smoke plate 111;

[0188] When the first preset concentration value is less than x ≤ the second preset concentration value, and the first preset air volume value is less than y ≤ the second preset air volume value, the smoke collecting plate 11 is controlled to open to a second preset angle and the auxiliary smoke plate 112 is flush with the main smoke plate 111;

[0189] When the second preset concentration value is less than x ≤ the third preset concentration value, and the second preset air volume value is less than y ≤ the third preset air volume value, the smoke collecting plate 11 is controlled to open to a second preset angle and the auxiliary smoke plate 112 is turned outward relative to the main smoke plate 111;

[0190] When the third preset concentration value is <x≤the fourth preset concentration value, and the third preset air volume value is <y≤the fourth preset air volume value, the smoke collecting plate 11 is controlled to open the third preset angle and the auxiliary smoke plate 112 is flush with the main smoke plate 111; when x>the fourth preset concentration value, and y>the fourth preset air volume value, the smoke collecting plate 11 is controlled to open the third preset angle and the auxiliary smoke plate 112 is flipped outward relative to the main smoke plate 111.

[0191] That is, when the detected smoke concentration value X falls into the first smoke concentration interval [0a), the actual operating air volume is also the air volume value used by the range hood at this time, which is small, and a larger smoke trapping range is not required, so the smoke trapping plate 11 is controlled to open to the first preset opening angle, and the auxiliary smoke plate 112 is controlled to be flush with the main smoke plate 111, that is, the driving member for controlling the flipping of the auxiliary smoke plate 112 does not work;

[0192] When the detected smoke concentration value falls into the second smoke concentration interval [ab), the actual operating air volume is in the second air volume interval [a`b`). At this time, the range hood needs to have a medium air volume value all the time, and it is determined that a certain smoke trapping range is required, that is, the smoke trapping plate 11 is controlled to open the second preset opening angle, and the auxiliary smoke plate 112 does not need to rotate relative to the main smoke plate 111;

[0193] When the detected smoke concentration value falls into the third smoke concentration interval [b-c), the actual operating air volume of the range hood is in the third air volume interval [b`c`), the required air volume value is medium, but a relatively larger smoke trapping range is required, and the smoke trapping plate 11 is controlled to open to the second preset angle, and the auxiliary smoke plate 112 is turned outward at a preset angle relative to the main smoke plate 111;

[0194] When the smoke concentration value is detected to fall into the fourth smoke concentration interval [cd), the actual operating air volume of the range hood is in the fourth air volume interval [c`d`). Since the current air volume value is relatively large, it is determined that the smoke extraction can be achieved without additional smoke collection space, that is, the smoke control office is controlled to open the second preset angle, and the auxiliary smoke plate 112 does not need to be flipped relative to the main smoke plate 111;

[0195] When the detected smoke concentration value falls into the fifth smoke concentration interval [d+∞), the actual operating air volume is relatively large, which is in the fifth air volume interval [d`+∞). However, due to the large amount of oil smoke, a larger smoke collection space is required to ensure the oil fume extraction effect, that is, the auxiliary smoke plate 112 is controlled to flip outward relative to the main smoke plate 111.

[0196] Embodiment 7

[0197] This embodiment provides a control method for a range hood, and the control method for a range hood provided in this embodiment is a further improvement of the control method in Embodiment 4. This embodiment is no longer limited to the same contents as the above embodiments.

[0198] like Fig.18 and Fig.19 As shown, in this embodiment, the smoke collecting plate 11 includes a main smoke plate 111 and an auxiliary smoke plate 112 hinged to the lower end of the main smoke plate 111 , the upper end of the main smoke plate 111 is rotatably mounted on the smoke collecting hood 6 , and the linkage driving mechanism 3 acts on the main smoke plate 111 .

[0199] The control method further includes: when it is determined that the smoke collecting plate 11 blocks the user's sight, controlling the auxiliary smoke plate 112 to flip relative to the main smoke plate 111 in a direction toward the smoke collecting hood 6. This arrangement can reduce the problem of the smoke collecting plate 11 blocking the user's sight due to a large flip angle by controlling the auxiliary smoke plate 112 to flip inward, thereby ensuring the cooking convenience of the user.

[0200] Since there is no risk of the smoke shield blocking the user's sight when the smoke collecting plate 11 is opened at a small angle, to simplify control, when the opening angle of the smoke collecting plate 11 is greater than a first preset angle, it is determined whether the smoke shield blocks the user's sight.

[0201] That is, the control method specifically includes:

[0202] S301, obtaining the current cooking status;

[0203] S302, determining whether it is low smoke cooking, if so, executing step S303, if not, executing step S304;

[0204] S303, controlling the cigarette collecting plate 11 to open to a first angle, and controlling the auxiliary cigarette plate 112 to be flush with the main cigarette plate 111;

[0205] S304, controlling the smoke collecting plate 11 to open to a second angle;

[0206] S305, determining whether the cigarette collecting plate 11 blocks the user's sight, if so, executing step S306, if not, executing step S301;

[0207] Step S306 , controlling the auxiliary cigarette plate 112 to first flip the main cigarette plate 111 inward.

[0208] It is worth noting that the first angle is less than or equal to the first preset angle, and the second angle is greater than the first preset angle. The second angle can be a fixed value, such as the second preset angle, or a value that varies according to the specific amount of oil smoke.

[0209] Specifically, in this embodiment, a height sensor is provided on the range hood, which is connected to the controller for detecting the height of the user. The controller determines whether the smoke collecting plate 11 has a risk of blocking the user's sight according to the detected height of the user and the current opening angle of the main smoke plate 111.

[0210] Specifically, the specific step S of determining whether the cigarette collecting plate 11 blocks the user's sight includes:

[0211] S3051, obtaining the distance c between the ground and the stove 400 and the distance x between the front end of the smoke collecting plate 11 and the front end of the range hood in the front-to-back direction;

[0212] S3052, obtaining the height h of the user and the distance e between the user and the front end of the range hood in the front-to-back direction;

[0213] S3053. Calculate the user's sight angle k=arctan[(hfc) / (e+ag);

[0214] Wherein, c is the distance between the upper end of the cooking utensil 500 and the ground, a is the distance between the front end of the range hood and the wall in the front-to-back direction, g is the distance between the center of the cooking utensil 500 and the wall in the front-to-back direction, and f is the distance between the user's eyes and the top of the head. a, c, g and f are all constants.

[0215] S3054. Compare the sizes of y`=x / tanσ and y=(agx)×tank. If y`>y, it is not blocked, otherwise it is blocked.

[0216] Furthermore, the control method also includes: when it is determined that the smoke collecting plate 11 blocks the user's line of sight and the current opening angle of the main smoke plate 111 is less than the maximum opening angle, controlling the auxiliary smoke plate 112 to flip relative to the main smoke plate 111 in the direction toward the smoke collecting hood 6 and increasing the opening angle of the main smoke plate 111.

[0217] After the auxiliary smoke plate 112 is flipped relative to the main smoke plate 111 in the direction toward the smoke collecting hood 6, the smoke collecting ability of the smoke collecting device 100 will be affected to a certain extent. At this time, if the opening angle of the main smoke plate 111 is not opened to the maximum opening angle, the smoke collecting effect of the smoke collecting plate 111 can be ensured by increasing the opening angle of the main smoke plate 111, thereby improving the oil fume extraction performance while avoiding obstruction to the user's line of sight.

[0218] That is, the control method also includes: when it is determined that the smoke collecting plate 11 blocks the user's line of sight and the current opening angle of the main smoke plate 111 is less than the maximum opening angle, controlling the auxiliary smoke plate 112 to flip relative to the main smoke plate 111 in the direction toward the smoke collecting hood 6 and increasing the opening angle of the main smoke plate 111.

[0219] Furthermore, the opening angle of the main smoke panel 111 is increased to a third preset opening angle, thereby simplifying the control of the range hood, and the third preset opening angle is equal to or less than the maximum opening angle of the main smoke panel 111 .

[0220] In this embodiment, the control method further includes: when it is determined that the cigarette collecting plate 11 blocks the user's sight, flipping and rotating the cigarette auxiliary plate 112 to be parallel to the user.

[0221] In another embodiment, the control method includes: when it is determined that the smoke collecting plate 11 blocks the user's sight, controlling the flip angle of the auxiliary smoke plate 112 relative to the main smoke plate 111 to be smaller than the current opening angle of the main smoke plate 111. This arrangement enables the auxiliary smoke plate 112 to be arranged vertically or tilted forward from bottom to top after flipping relative to the main smoke plate 111, thereby preventing the smoke flowing onto the auxiliary smoke plate 112 from flowing outward along the auxiliary smoke plate 112, and reducing the interference of the inward flipping of the auxiliary smoke plate 112 on the smoke collecting effect.

[0222] In another embodiment, when it is determined that the smoke collecting plate 11 blocks the user's line of sight, the auxiliary smoke plate 112 is controlled to flip inward and extend obliquely upward and backward in a direction away from the main smoke plate 111, so that when the smoke acts on the auxiliary smoke plate 112, it can flow along the auxiliary smoke plate 112 into the smoke collecting space.

[0223] Embodiment 8

[0224] This embodiment provides a control method for a range hood, and the control method provided in this embodiment is basically the same as the control method provided in Embodiment 7, with only some settings being different. This embodiment will not repeat the same contents as Embodiment 7.

[0225] like Fig. 20 As shown, the control method provided in this embodiment includes the following steps:

[0226] S401, ignition of cooking appliances;

[0227] S402, obtaining the fire power status, when the fire power status is the low fire gear, executing step S403; when the fire power status is the medium fire gear, executing step S404; when the fire power status is the ignition gear, executing step S405;

[0228] S403, the range hood is running, and the smoke collecting plate 11 is opened to a first preset angle;

[0229] S404, the range hood is running, the smoke collecting plate 11 is opened to a second preset angle, and step S406 is executed;

[0230] S405, the range hood is running, the smoke collecting plate 11 is opened to a third preset angle, and step S406 is executed;

[0231] S406, determining whether the smoke shield blocks the user's sight, if so, executing step S407, if not, returning to step S402;

[0232] S407 , controlling the auxiliary smoke plate 112 to flip inward relative to the main smoke plate 111 .

[0233] That is, the control method provided in this embodiment determines the current cooking state according to the ignition fire power level, and controls the opening angle of the smoke shielding plate 11 according to the fire power level. When the opening angle of the smoke shielding plate 11 is the second preset angle and the third preset angle, it determines whether the smoke shielding plate blocks the user's line of sight. The control method is simple and reliable.

[0234] Embodiment 9

[0235] This embodiment provides a control method for a range hood, and the control method provided in this embodiment can be applied to the range hood provided in the third embodiment.

[0236] In this embodiment, the control method includes: when the current cooking state is a high smoke cooking state, judging the opening angle of the main smoke plate 111 and the flipping direction of the auxiliary smoke plate 112 relative to the main smoke plate 111 according to the height of the user. In this way, while achieving a better fume extraction effect, the smoke collecting plate 11 can be prevented from blocking the user's sight.

[0237] like Fig.21 As shown, the control method provided in this embodiment includes:

[0238] S501, obtaining the current cooking state, when the cooking state is a low smoke cooking state, executing step S502, when the current cooking state is a high smoke cooking state, executing step S503;

[0239] The current cooking status can be obtained by referring to the above embodiment, which will not be described in detail here;

[0240] S502, controlling the cigarette collecting plate 11 to open to a first preset angle and controlling the auxiliary cigarette plate 112 to be flush with the main cigarette plate 111;

[0241] S503, determining whether the user's height is less than a preset height, if so, executing step S504, if not, executing step S505;

[0242] S504, controlling the cigarette collecting plate 11 to open to a second preset opening angle, and controlling the auxiliary cigarette plate 112 to flip outward relative to the main cigarette plate 111;

[0243] S505 , controlling the cigarette collecting plate 11 to open to a third preset angle, and controlling the auxiliary cigarette plate 112 to flip inward relative to the main cigarette plate 111 .

[0244] When the main cigarette plate 111 is flipped at a large angle, or the auxiliary cigarette plate 112 is flipped outward relative to the main cigarette plate 111, if the user is tall, there is a direction that blocks the user's line of sight. If a larger cigarette holding space is needed at this time, it is necessary to increase the flipping angle of the main cigarette plate 111 and simultaneously cooperate with the inward flipping of the auxiliary cigarette plate 112 to avoid obstruction, while being compatible with a relatively large cigarette holding space and avoiding the risk of blocked vision; if the user's height is such that flipping the auxiliary cigarette plate 112 outward will not block the user's line of sight, it is preferred to use the method of flipping the auxiliary cigarette plate 112 outward relative to the main cigarette plate 111 to increase the size of the cigarette holding space.

[0245] It is worth noting that in this embodiment, when the current cooking state is the medium smoke cooking state, step S503 can be executed, or the smoke collecting plate 11 can be directly controlled to open to the second preset opening angle, and the auxiliary smoke plate 112 can be controlled to be flush with the main smoke plate 111.

[0246] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A range hood, comprising a smoke collecting hood (6) having a smoke collecting chamber (63) and a front opening, characterized in that: The range hood further comprises: A flip chamber assembly (2), the lower end of which is movably mounted in the smoke collecting hood (6) and can be flipped outward through the front opening, and the flip chamber assembly (2) has a smoke inlet (214) connected to the smoke collecting chamber (63); A smoke collecting plate (11) is rotatably mounted on the front side of the smoke collecting hood (6) to open or close the smoke inlet (214) and the front opening; The linkage drive mechanism (3) is configured to only drive the smoke collecting plate (11) to rotate when the opening angle of the smoke collecting plate (11) is less than or equal to a first preset opening angle, and to drive the smoke collecting plate (11) and the turnover chamber assembly (2) to open outward or close inward in a linkage manner when the opening angle of the smoke collecting plate (11) is greater than the first preset opening angle.

2. The range hood according to claim 1, characterized in that: A connecting hole (23) is provided on the side of the flip chamber assembly (2); the linkage drive mechanism (3) comprises a flip linkage member (31), a drive motor (37) and a transmission assembly; the transmission assembly is connected to the flip linkage member (31) and the smoke collecting plate (11); the drive motor (37) drives the smoke collecting plate (11) to rotate through the transmission assembly, while actuating the flip linkage member (31) to slide in the connecting hole (23) to drive the flip chamber assembly (2) to rotate.

3. The range hood according to claim 2, characterized in that: The connecting hole (23) comprises an avoidance hole portion (231) and an actuating hole portion (232) connected to the front end of the avoidance hole portion (231); the shape of the avoidance hole portion (231) is consistent with the running track of the flip linkage member (31) when the smoke collecting plate (11) is opened from a closed state to the first preset opening angle; when the opening angle of the smoke collecting plate (11) is less than the first preset opening angle, the flip linkage member (31) slides along the avoidance hole portion (231); when the opening angle of the smoke collecting plate (11) is greater than the first preset opening angle, the flip linkage member (31) slides in the actuating hole portion (232) to actuate the flip chamber assembly (2) to rotate; And / or, the range hood further comprises a reset member (4), wherein the reset member (4) always applies an elastic force to the flip chamber assembly (2) to rotate backward.

4. The range hood according to claim 3, characterized in that: The avoidance hole portion (231) is an arc-shaped hole opening toward the rotation axis of the smoke collecting plate (11), and the actuating hole portion (232) is a long strip hole extending along the height direction of the turnover chamber assembly (2).

5. The range hood according to any one of claims 1 to 4, characterized in that: The turnover chamber assembly (2) comprises an outer mounting frame and an inner smoke collecting frame (21), the lower end of the outer mounting frame is rotatably mounted inside the smoke collecting hood (6), the inner smoke collecting frame (21) can be slidably mounted on the outer mounting frame along the height direction of the outer mounting frame, so that the upper end of the inner smoke collecting frame (21) is close to or away from the smoke collecting plate (11), the inner smoke collecting frame (21) has the smoke inlet (214), and the linkage drive mechanism (3) is connected to the outer mounting frame; And / or, the smoke collecting plate (11) comprises a main smoke plate (111) and an auxiliary smoke plate (112) hinged to the lower end of the main smoke plate (111), the upper end of the main smoke plate (111) is rotatably mounted on the smoke collecting hood (6), and the main smoke plate (111) and the auxiliary smoke plate (112) cooperate to close or open the front opening, and the linkage drive mechanism (3) is connected between the main smoke plate (111) and the flip chamber assembly (2).

6. The range hood according to claim 5, characterized in that: A coupling assembly (5) is connected between the smoke collecting plate (11) and the smoke collecting inner frame (21), and the coupling assembly (5) is configured to pull the upper end of the smoke collecting inner frame (21) close to the smoke collecting plate (11) when the smoke collecting plate (11) is flipped open relative to the smoke collecting cover (6); Alternatively, a connecting assembly (5) is connected between the auxiliary smoke plate (112) and the smoke collecting inner frame (21), and the connecting assembly (5) is configured to pull the upper end of the smoke collecting inner frame (21) closer to the main smoke plate (111) when the auxiliary smoke plate (112) is flipped relative to the main smoke plate (111) in a direction away from the smoke collecting hood (6).

7. A control method for a range hood, characterized in that: Applicable to the control of the range hood according to any one of claims 1 to 6, the control method comprising: controlling the opening angle of the smoke collecting plate (11) according to the current cooking state, and when the current cooking state is a low smoke cooking state, controlling the opening angle of the smoke collecting plate (11) to be less than or equal to the first preset opening angle.

8. The control method according to claim 7, characterized in that: The smoke collecting plate (11) comprises a main smoke plate (111) and an auxiliary smoke plate (112) hinged to the lower end of the main smoke plate (111); the upper end of the main smoke plate (111) is rotatably mounted on the smoke collecting hood (6); and the linkage driving mechanism (3) acts on the main smoke plate (111); The control method further comprises: when a preset expansion condition is met, controlling the auxiliary smoke plate (112) to flip relative to the main smoke plate (111) in a direction away from the smoke collecting hood (6); and / or, the control method further comprises: when it is determined that the smoke collecting plate (11) blocks the user's line of sight, controlling the auxiliary smoke plate (112) to flip relative to the main smoke plate (111) in a direction toward the smoke collecting hood (6).

9. The control method according to claim 8, characterized in that: The controller of the range hood is built with a plurality of smoke value intervals and air volume intervals, and the control method comprises: detecting the smoke concentration and the actual operating air volume of the fan in real time during the cooking process, and determining whether the preset expansion condition is met according to the preset smoke interval of the detected smoke value and the air volume interval of the actual operating air volume value; And / or, when it is determined that the smoke collecting plate (11) blocks the user's line of sight and the current opening angle of the main smoke plate (111) is less than the maximum opening angle, the auxiliary smoke plate (112) is controlled to flip relative to the main smoke plate (111) in a direction toward the smoke collecting hood (6) and increase the opening angle of the main smoke plate (111).

10. The control method according to claim 9, characterized in that: When the current cooking state is a high smoke cooking state, if the height of the user is less than a preset height, the main smoke plate (111) is controlled to open to a second preset angle, and the auxiliary smoke plate (112) is controlled to flip outward relative to the main smoke plate (111); And / or, when the current cooking state is a high smoke cooking state, if the user's height is greater than or equal to a preset height, the main smoke plate (111) is controlled to open to a third preset angle, and the auxiliary smoke plate (112) is controlled to flip inward relative to the main smoke plate (111).

Images