Smoke barrier assembly, range hood, control method of range hood and kitchen ware system

Abstract

The invention relates to the technical field of range hoods, and discloses a smoke barrier assembly, a range hood, a control method of the range hood and a kitchen ware system.The smoke barrier assembly comprises a supporting frame, a smoke barrier and a driving structure, the smoke barrier is provided with a first position and a second position, the smoke barrier and an air blowing opening are staggered when the smoke barrier is located at the first position, and the smoke barrier shields the air blowing opening when the smoke barrier is located at the second position; the driving structure comprises a motor and a connecting rod mechanism, the motor is arranged on the supporting frame and provided with a motor shaft, the connecting rod mechanism comprises a first connecting rod and a second connecting rod which are parallel, one end of the first connecting rod is connected with the motor shaft, the other end of the first connecting rod is hinged to the smoke barrier, one end of the second connecting rod is hinged to the supporting frame, and the other end of the second connecting rod is hinged to the smoke barrier. The motor directly drives the smoke barrier to move through the first connecting rod and the second connecting rod, a connecting rod mechanism is simplified, connecting points are reduced, force transmission loss is reduced, transmission efficiency is higher, production and assembly are more convenient, and the situation that the smoke barrier cannot move due to paralysis of the whole driving structure caused by production and assembly errors is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of range hoods, and in particular to a smoke baffle assembly, a range hood and a control method thereof, and a kitchen utensil system. Background Art

[0002] The main function of the range hood is to absorb oil smoke, and the main function of the fan part is to circulate air in the kitchen to cool down. The fan part cools down the head and upper limbs of the cook by blowing high-speed air to the cook. The fan needs to be used in the high-oil and high-salt environment of the kitchen. When the fan is not in use, how to ensure that oil smoke and stains cannot enter the air duct from the air outlet and contaminate the fan blades is a difficult problem. The current solution is to make the air outlet a retractable glass panel. When the fan is in use, the glass panel opens to expose the air outlet for air supply. When the fan is turned off, the glass panel closes to form a closed state of the air duct, thereby achieving an anti-fouling effect.

[0003] The existing glass panel uses 6 connecting rods and 16 rotating pairs to transmit power to achieve the lifting, sliding and opening of the glass panel. However, this structure is extremely complex and difficult to produce and assemble. There are many transmission rods and connection points. It is easy for the entire motion mechanism to be paralyzed due to production and assembly errors, making the glass panel unable to move. Summary of the invention

[0004] In view of this, the present invention provides a smoke baffle assembly, a range hood and a control method thereof, and a kitchen utensil system to solve the problem that the opening and closing of the existing glass panel uses multiple connecting rods and rotating pairs to transmit power, resulting in an extremely complex structure, difficult production and assembly, and a large number of transmission rods and connection points. It is easy for the entire motion mechanism to be paralyzed due to production and assembly errors, resulting in the glass panel being unable to move.

[0005] The smoke shield assembly of claim 1, wherein the smoke shield assembly comprises a support frame, a smoke shield and a driving structure, the smoke shield having a first position and a second position. In the first position, the smoke shield and the air outlet are staggered, and in the second position, the smoke shield blocks the air outlet. The driving structure comprises a motor and a connecting rod mechanism, the motor is arranged on the support frame, the motor has a motor shaft, and the connecting rod mechanism comprises a first connecting rod and a second connecting rod in parallel, one end of the first connecting rod is fixedly connected to the motor shaft, the other end of the first connecting rod is hinged to the smoke shield, one end of the second connecting rod is hinged to the support frame, and the other end of the second connecting rod is hinged to the smoke shield; the motor drives the motor shaft to rotate, driving the first connecting rod to swing around the motor shaft, thereby driving the second connecting rod to swing synchronously relative to the support frame, and driving the smoke shield to move to the first position or the second position.

[0006] Beneficial effect: the motor drives the motor shaft to rotate in the forward direction, driving the first connecting rod to swing upward with the motor shaft as the center, thereby driving the second connecting rod to swing synchronously relative to the support frame, driving the smoke shield to move upward to the first position, thereby staggering the smoke shield and the air outlet, so that the air outlet can discharge air; when the air outlet does not need to discharge air, the motor drives the motor shaft to rotate in the reverse direction, driving the first connecting rod to swing downward with the motor shaft as the center, thereby driving the second connecting rod to swing synchronously relative to the support frame, driving the smoke shield to move downward to the second position, thereby making the smoke shield cover the air outlet, thereby protecting the air outlet and avoiding pollution from oil smoke and dust.

[0007] In the smoke shield assembly of the present application, the motor directly drives the smoke shield to move via the first connecting rod and the second connecting rod, which simplifies the connecting rod mechanism, reduces the connection points, reduces the force transmission loss, has higher transmission efficiency, and is more convenient to produce and assemble, thereby reducing the situation where the entire drive structure is paralyzed due to production and assembly errors, resulting in the smoke shield being unable to move.

[0008] In some embodiments, the linkage mechanism further includes a transmission link, the transmission link is fixedly connected to the smoke baffle, and the other end of the first link and the other end of the second link are both hinged to the transmission link.

[0009] Beneficial effect: By setting a transmission connecting rod, the transmission connecting rod connects the smoke shield with the first connecting rod and the second connecting rod. The first connecting rod and the second connecting rod are driven by the motor to swing, driving the transmission connecting rod to move, and then driving the smoke shield connected to the transmission connecting rod to move synchronously.

[0010] In some embodiments, the smoke shield assembly further includes a limiting structure, wherein the limiting structure is disposed on the support frame, and based on the smoke shield being in the first position, the limiting structure abuts against one of the first connecting rod and the second connecting rod.

[0011] Beneficial effect: The setting limit structure, when the smoke shield moves to the first position, the limit structure abuts against one of the first connecting rod and the second connecting rod, thereby limiting the first connecting rod and the second connecting rod from continuing to swing, thereby limiting the smoke shield to the first position, ensuring the position accuracy of the smoke shield.

[0012] In some embodiments, based on the smoke baffle being in the second position, the limiting structure abuts against the other of the first connecting rod and the second connecting rod.

[0013] Beneficial effect: When the smoke shield moves to the second position, the limiting structure abuts against the other of the first connecting rod and the second connecting rod, thereby limiting the first connecting rod and the second connecting rod from continuing to swing, thereby limiting the smoke shield to the second position and ensuring the position accuracy of the smoke shield.

[0014] In some embodiments, the limiting structure includes a first stop block and a second stop block, the first stop block is arranged on the support frame, and the first stop block is located above the first connecting rod, based on the smoke shield being in the first position, the first stop block and the first connecting rod abut, the second stop block is arranged on the support frame, and the second stop block is located below the second connecting rod, based on the smoke shield being in the second position, the second stop block and the second connecting rod abut.

[0015] Beneficial effect: When the smoke shield moves to the first position, the first stop block abuts and limits the first connecting rod, limiting the first connecting rod and the second connecting rod from continuing to swing, thereby stopping the movement of the smoke shield and ensuring that the smoke shield is in the first position. When the smoke shield moves to the second position, the second stop block abuts and limits the second connecting rod, limiting the second connecting rod and the first connecting rod from continuing to swing, thereby stopping the movement of the smoke shield and ensuring that the smoke shield is in the second position.

[0016] In some embodiments, two driving structures are provided, and the two driving structures are respectively provided on both sides of the smoke baffle plate along the length direction of the smoke baffle plate.

[0017] Beneficial effect: By setting two driving structures, the two sides of the smoke shield are driven to move simultaneously by the two driving structures, so that the forces on both sides of the smoke shield are balanced, and the functions of reliable, stable and synchronous movement of both ends of the smoke shield can be realized, thereby improving the stability of the movement of the smoke shield.

[0018] In some embodiments, the smoke baffle assembly further includes a controller, and the controller is communicatively connected to the two motors of the two drive structures.

[0019] Beneficial effect: Through the communication connection between the controller and the two motors, the two motors are controlled to move synchronously, the level of automatic control is improved, and the errors caused by human participation are reduced.

[0020] In some embodiments, the smoke barrier plate includes a smoke barrier bracket and a smoke barrier panel, the smoke barrier bracket and the first connecting rod and the second connecting rod are hinged, and the smoke barrier panel is fixedly connected to the smoke barrier bracket.

[0021] Beneficial effects: The smoke barrier bracket is used to support the smoke barrier panel and also facilitates the connection between the smoke barrier panel and the connecting rod mechanism.

[0022] The second aspect of the present invention provides a range hood, comprising an outer cover and a smoke shield assembly of the present invention, wherein a fan is arranged inside the outer cover, the outer cover is provided with an air outlet, the air outlet direction of the fan is arranged toward the air outlet, and the smoke shield of the smoke shield assembly is movably arranged at the air outlet.

[0023] Beneficial effect: Since the range hood of the present invention includes the smoke shield assembly of the present invention, it has all the technical effects of the smoke shield assembly, which will not be repeated here. When the fan is started, the wind blown by the fan can be blown toward the user through the air outlet. When the fan is turned off, the smoke shield blocks the air outlet, thereby protecting the internal fan and preventing oil smoke and dust from entering through the air outlet and contaminating the fan.

[0024] A third aspect of the present invention provides a method for controlling a range hood, the method for controlling a range hood being used to control the range hood of the present invention, the method comprising:

[0025] Get the fan start signal;

[0026] According to the fan start signal, the motor is controlled to drive the connecting rod mechanism to swing, and the connecting rod mechanism drives the smoke baffle to move to the first position;

[0027] Obtaining a shutdown signal of the fan;

[0028] The motor is controlled to drive the connecting rod mechanism to swing according to the closing signal of the fan, and the connecting rod mechanism drives the smoke baffle to move to the second position.

[0029] Beneficial effect: Since the control method of the range hood of the present invention is used to control the range hood of the present invention, the control method of the range hood of the present invention has the same technical effect as the range hood, and will not be described in detail herein.

[0030] In some embodiments, the connecting rod mechanism drives the smoke baffle to move to the first position, including:

[0031] The connecting rod mechanism drives the smoke baffle to move;

[0032] Determining whether the smoke baffle moves to the first position;

[0033] If yes, the motor is controlled to be turned off.

[0034] Beneficial effect: Through the above arrangement, it can be ensured that the connecting rod mechanism drives the smoke baffle to move to the first position before turning off the motor, which can not only ensure the accurate position of the smoke baffle, but also avoid the loss caused by excessive operation of the motor.

[0035] In some embodiments, the step of determining whether the smoke shield has moved to the first position includes:

[0036] Determining whether the current of the motor is greater than a preset value;

[0037] If yes, it is determined that the smoke baffle moves to the first position.

[0038] Beneficial effect: When the current of the motor is greater than the preset value, it means that the swing of the connecting rod mechanism encounters resistance, the smoke shield has moved to the first position and cannot move further, and the current of the motor increases instantaneously due to the resistance. At this time, it is determined that the smoke shield has moved to the first position and the motor is controlled to shut down.

[0039] In some embodiments, the connecting rod mechanism drives the smoke baffle to move to the second position, including:

[0040] The connecting rod mechanism drives the smoke baffle to move;

[0041] determining whether the smoke baffle moves to the second position;

[0042] If yes, the motor is controlled to be turned off.

[0043] Beneficial effect: Through the above arrangement, it can be ensured that the connecting rod mechanism drives the smoke shield to move to the second position before turning off the motor, which can not only ensure the accurate position of the smoke shield, but also avoid the loss caused by excessive operation of the motor.

[0044] In some embodiments, the step of determining whether the smoke shield has moved to the second position includes:

[0045] Determining whether the current of the motor is greater than a preset value;

[0046] If yes, it is determined that the smoke shield moves to the second position.

[0047] Beneficial effect: When the current of the motor is greater than the preset value, it means that the swing of the connecting rod mechanism encounters resistance, the smoke shield has moved to the second position and cannot move further, and the current of the motor increases instantaneously due to the resistance. At this time, it is determined that the smoke shield has moved to the second position and the motor is controlled to shut down.

[0048] A fourth aspect of the present invention provides a kitchen system, comprising a cooker and the range hood of the present invention, wherein the range hood is arranged above the cooker.

[0049] Beneficial effect: Since the kitchenware system of the present invention includes the range hood of the present invention, the kitchenware system of the present invention has the same technical effect as the range hood, and this embodiment will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0051] Figure 1 A side view of a smoke baffle assembly in a first position according to an embodiment of the present invention;

[0052] Figure 2 A side view of a smoke baffle assembly in a second position according to an embodiment of the present invention;

[0053] Figure 3 It is a three-dimensional structural schematic diagram of a smoke baffle assembly in a first position according to an embodiment of the present invention;

[0054] Figure 4 It is a three-dimensional structural schematic diagram of a smoke baffle assembly in a second position according to an embodiment of the present invention;

[0055] Figure 5 It is a flowchart of the overall steps of a method for controlling a range hood according to an embodiment of the present invention;

[0056] Figure 6 Part of the steps of the control method of the range hood according to one embodiment of the present invention Figure 1 ;

[0057] Figure 7 Part of the steps of the control method of the range hood according to one embodiment of the present invention Figure 2 .

[0058] Description of Reference Numerals

[0059] 1. Support frame;

[0060] 2. Smoke barrier; 21. Smoke barrier bracket; 22. Smoke barrier panel;

[0061] 3. Motor; 31. Motor shaft;

[0062] 4. connecting rod mechanism; 41. first connecting rod; 42. second connecting rod; 43. transmission connecting rod;

[0063] 5. Limiting structure; 51. First stopper; 52. Second stopper. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0065] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0066] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0068] Combine the following Figures 1 to 7 , describing an embodiment of the present invention.

[0069] like Figure 1 and Figure 4 As shown, according to an embodiment of the present invention, on the one hand, a smoke shield assembly is disclosed, which is used to block the air outlet of a range hood, and the smoke shield assembly includes a support frame 1, a smoke shield 2 and a driving structure, wherein the smoke shield 2 has a first position and a second position, when in the first position, the smoke shield 2 and the air outlet are staggered, and when in the second position, the smoke shield 2 blocks the air outlet, and the driving structure includes a motor 3 and a connecting rod mechanism 4, the motor 3 is arranged on the support frame 1, the motor 3 has a motor shaft 31, the connecting rod mechanism 4 includes a parallel first connecting rod 41 and a second connecting rod 42, one end of the first connecting rod 41 is fixedly connected to the motor shaft 31, the other end of the first connecting rod 41 is hinged to the smoke shield 2, one end of the second connecting rod 42 is hinged to the support frame 1, and the other end of the second connecting rod 42 is hinged to the smoke shield 2, the motor 3 drives the motor shaft 31 to rotate, drives the first connecting rod 41 to swing around the motor shaft 31, thereby drives the second connecting rod 42 to swing synchronously relative to the support frame 1, and drives the smoke shield 2 to move to the first position or the second position.

[0070] The motor 3 drives the motor shaft 31 to rotate forward, driving the first connecting rod 41 to swing upward with the motor shaft 31 as the center, thereby driving the second connecting rod 42 to swing synchronously relative to the support frame 1, driving the smoke shield 2 to move upward to the first position, thereby staggering the smoke shield 2 and the air outlet, so that the air outlet can discharge air. When the air outlet does not need to discharge air, the motor 3 drives the motor shaft 31 to rotate in the opposite direction, driving the first connecting rod 41 to swing downward with the motor shaft 31 as the center, thereby driving the second connecting rod 42 to swing synchronously relative to the support frame 1, driving the smoke shield 2 to move downward to the second position, so that the smoke shield 2 blocks the air outlet, thereby protecting the air outlet and avoiding pollution from oil smoke and dust.

[0071] In the smoke baffle assembly of the present application, the motor 3 directly drives the smoke baffle 2 to move via the first connecting rod 41 and the second connecting rod 42, thereby simplifying the connecting rod mechanism 4, reducing the number of connection points, reducing force transmission losses, achieving higher transmission efficiency, and making production and assembly more convenient, thereby reducing the possibility of the entire drive structure being paralyzed due to production and assembly errors, causing the smoke baffle 2 to be unable to move.

[0072] It should be noted that the forward rotation of the motor shaft 31 may be a clockwise rotation, and the reverse rotation of the motor shaft 31 may be a counterclockwise rotation.

[0073] The support frame 1 supports the entire smoke shield assembly, and the support frame 1 also facilitates the overall assembly of the smoke shield assembly.

[0074] Preferably, the size of the smoke shield 2 is greater than or equal to the size of the air blowing port, so that the smoke shield 2 can completely cover the air blowing port, enhance the protection strength of the smoke shield 2 to the air blowing port, and prevent oil smoke and dust from flowing into the air blowing port through the gap between the air blowing port and the smoke shield 2.

[0075] The motor shaft 31 is provided with a thread, and the first connecting rod 41 is sleeved on the motor shaft 31. The first connecting rod 41 and the motor shaft 31 are locked by a nut to prevent the motor shaft 31 from moving away from the first connecting rod 41, but it is not limited to this. For example, the first connecting rod 41 and the motor shaft 31 can also be welded and fixed.

[0076] One end of the second connecting rod 42 and the bracket, and the other end of the second connecting rod 42 and the smoke shield 2 are both hinged through a hinge shaft. Specifically, the hinge shaft is a hollow shaft to reduce the weight of the mechanism, and the hinge shaft is connected and fixed to the bracket and the smoke shield 2 by hollow riveting, but it is not limited to this.

[0077] In some embodiments, the smoke barrier plate 2 includes a smoke barrier bracket 21 and a smoke barrier panel 22 . The smoke barrier bracket 21 and the first connecting rod 41 and the second connecting rod 42 are all hinged, and the smoke barrier panel 22 is fixedly connected to the smoke barrier bracket 21 .

[0078] The smoke barrier bracket 21 is used to support the smoke barrier panel 22 and also facilitate the connection between the smoke barrier panel 22 and the connecting rod mechanism 4 .

[0079] Specifically, the smoke shield bracket 21 and the smoke shield panel 22 may be fixed by adhesive, but the present invention is not limited thereto. For example, in other embodiments, the smoke shield bracket 21 and the smoke shield panel 22 may be fixed by bolts or buckle structures.

[0080] In some embodiments, the link mechanism 4 further includes a transmission link 43 , the transmission link 43 is fixedly connected to the smoke baffle 2 , and the other end of the first link 41 and the other end of the second link 42 are both hinged to the transmission link 43 .

[0081] The transmission link 43 is provided to connect the smoke baffle 2 with the first link 41 and the second link 42. The first link 41 and the second link 42 are driven by the motor 3 to swing, driving the transmission link 43 to move, thereby driving the smoke baffle 2 connected to the transmission link 43 to move synchronously.

[0082] Optionally, the transmission connecting rod 43 and the smoke baffle 2 can be fixed by screws to facilitate disassembly, assembly and maintenance, but is not limited to this. For example, in other embodiments, the transmission connecting rod 43 and the smoke baffle 2 can also be fixed by snap-fitting or magnetic attraction.

[0083] During assembly, the smoke barrier panel 22 and the smoke barrier bracket 21 are fixed by gluing separately, the motor 3 and the first connecting rod 41, the second connecting rod 42 and the transmission connecting rod 43 are fixed by riveting, and finally the transmission connecting rod 43 and the smoke barrier bracket 21 are fixed by screws to achieve assembly, which is convenient for production, installation, maintenance and overhaul.

[0084] In some embodiments, the smoke baffle assembly further includes a limiting structure 5 , which is disposed on the support frame 1 . Based on the smoke baffle 2 being in the first position, the limiting structure 5 abuts against one of the first connecting rod 41 and the second connecting rod 42 .

[0085] A limiting structure 5 is set, and when the smoke shield 2 moves to the first position, the limiting structure 5 abuts against one of the first connecting rod 41 and the second connecting rod 42, thereby limiting the first connecting rod 41 and the second connecting rod 42 from continuing to swing, thereby limiting the smoke shield 2 to the first position, ensuring the position accuracy of the smoke shield 2.

[0086] In some embodiments, based on the smoke baffle plate 2 being in the second position, the limiting structure 5 abuts against the other of the first connecting rod 41 and the second connecting rod 42 .

[0087] When the smoke shield 2 moves to the second position, the limiting structure 5 abuts against the other of the first connecting rod 41 and the second connecting rod 42, thereby limiting the first connecting rod 41 and the second connecting rod 42 from continuing to swing, thereby limiting the smoke shield 2 in the second position and ensuring the position accuracy of the smoke shield 2.

[0088] In some embodiments, the limiting structure 5 includes a first stop block 51 and a second stop block 52. The first stop block 51 is arranged on the support frame 1 and is located above the first connecting rod 41. Based on the smoke shield 2 being in the first position, the first stop block 51 and the first connecting rod 41 abut against each other. The second stop block 52 is arranged on the support frame 1 and is located below the second connecting rod 42. Based on the smoke shield 2 being in the second position, the second stop block 52 and the second connecting rod 42 abut against each other.

[0089] When the smoke shield 2 moves to the first position, the first stop block 51 abuts and limits the first connecting rod 41, limiting the first connecting rod 41 and the second connecting rod 42 from continuing to swing, thereby stopping the movement of the smoke shield 2 and ensuring that the smoke shield 2 is located in the first position. When the smoke shield 2 moves to the second position, the second stop block 52 abuts and limits the second connecting rod 42, limiting the second connecting rod 42 and the first connecting rod 41 from continuing to swing, thereby stopping the movement of the smoke shield 2 and ensuring that the smoke shield 2 is located in the second position.

[0090] In some embodiments, two driving structures are provided, and the two driving structures are respectively provided on both sides of the smoke baffle 2 along the length direction of the smoke baffle 2 .

[0091] By setting two driving structures, the two sides of the smoke shield 2 are driven to move simultaneously by the two driving structures, so that the forces on both sides of the smoke shield 2 are balanced, and the functions of reliable, stable and synchronous movement of the two ends of the smoke shield 2 can be realized, thereby improving the stability of the movement of the smoke shield 2.

[0092] In some embodiments, the smoke baffle assembly further includes a controller, and the controller is communicatively connected to the two motors 3 of the two drive structures.

[0093] The controller is connected to the two motors 3 through communication, and the two motors 3 are controlled to move synchronously, thereby improving the level of automatic control and reducing errors caused by human intervention.

[0094] According to an embodiment of the present invention, on the other hand, a range hood is disclosed, comprising an outer cover and a smoke shield assembly of the present invention, wherein a fan is arranged inside the outer cover, the outer cover is provided with an air outlet, the air outlet direction of the fan is arranged toward the air outlet, and the smoke shield 2 of the smoke shield assembly is movably arranged at the air outlet.

[0095] Since the range hood of the present invention includes the smoke baffle assembly of the present invention, it has all the technical effects of the smoke baffle assembly and will not be repeated here. When the fan is started, the wind blown by the fan can be blown toward the user through the air outlet. When the fan is turned off, the smoke baffle 2 blocks the air outlet, thereby protecting the internal fan and preventing oil smoke and dust from entering through the air outlet and contaminating the fan.

[0096] To facilitate understanding of the smoke baffle assembly and the range hood of this embodiment, the use process thereof is now described as follows:

[0097] When air needs to be discharged from the air outlet, the controller controls the two motors 3 to simultaneously drive the motor shaft 31 to rotate forward, driving the first connecting rod 41 to swing upward with the motor shaft 31 as the center, thereby driving the second connecting rod 42 to swing synchronously relative to the support frame 1, driving the two sides of the smoke shield 2 to move upward synchronously, and when the first stopper 51 and the first connecting rod 41 abut against each other, the controller controls the two motors 3 to close, at this time the smoke shield 2 moves to the first position, the smoke shield 2 and the air outlet are staggered, the fan is started, and the air can be blown out from the air outlet;

[0098] When the air outlet does not need to output air, the fan is turned off, and the controller controls the two motors 3 to drive the motor shaft 31 to rotate in the opposite direction at the same time, driving the first connecting rod 41 to swing downward with the motor shaft 31 as the center, thereby driving the second connecting rod 42 to swing synchronously relative to the support frame 1, and driving the two sides of the smoke shield 2 to move downward synchronously. When the second stop block 52 and the second connecting rod 42 abut, the controller controls the two motors 3 to turn off. At this time, the smoke shield 2 moves to the second position, and the smoke shield 2 blocks the air outlet, thereby protecting the air outlet and the internal fan and avoiding pollution from oil smoke and dust.

[0099] like Figures 5 to 7 As shown, according to an embodiment of the present invention, on the other hand, a control method of a range hood is disclosed. The control method of the range hood is used to control the range hood of the present invention. The control method of the range hood includes:

[0100] Get the fan start signal;

[0101] According to the fan start signal, the motor 3 is controlled to drive the connecting rod mechanism 4 to swing, and the connecting rod mechanism 4 drives the smoke baffle 2 to move to the first position;

[0102] Get the fan shutdown signal;

[0103] According to the fan closing signal, the motor 3 is controlled to drive the connecting rod mechanism 4 to swing, and the connecting rod mechanism 4 drives the smoke baffle 2 to move to the second position.

[0104] Since the control method of the range hood of the present invention is used to control the range hood of the present invention, the control method of the range hood of the present invention has the same technical effect as the range hood, and this embodiment will not be described in detail herein.

[0105] In some embodiments, the step of the connecting rod mechanism 4 driving the smoke baffle 2 to move to the first position includes:

[0106] The connecting rod mechanism 4 drives the smoke baffle 2 to move;

[0107] Determine whether the smoke baffle 2 moves to the first position;

[0108] If yes, the motor 3 is controlled to be turned off.

[0109] Through the above arrangement, it can be ensured that the connecting rod mechanism 4 drives the smoke baffle 2 to move to the first position before turning off the motor 3, which can ensure the accurate position of the smoke baffle 2 and avoid the loss caused by excessive operation of the motor 3.

[0110] In some embodiments, the step of determining whether the smoke shield 2 has moved to the first position includes:

[0111] Determine whether the current of motor 3 is greater than a preset value;

[0112] If yes, it is determined that the smoke shield 2 moves to the first position.

[0113] When the current of the motor 3 is greater than the preset value, it means that the swing of the connecting rod mechanism 4 encounters resistance, the smoke shield 2 has moved to the first position and cannot move further, and the current of the motor 3 increases instantaneously due to the resistance. At this time, it is determined that the smoke shield 2 moves to the first position, and the motor 3 is controlled to be turned off.

[0114] Specifically, the movement of the connecting rod mechanism 4 is restricted by the first stop block 51 abutting and limiting the first connecting rod 41. When the motor 3 drives the first connecting rod 41 and the second connecting rod 42 to swing upward as a whole, the smoke baffle 2 is driven to move upward to open the air outlet until the first connecting rod 41 moves to abut against the first stop block 51. At this time, the movement is blocked and the current of the motor 3 increases instantaneously. When it is detected that the current of the motor 3 is greater than the preset value, the motor 3 is controlled to be turned off.

[0115] In some embodiments, the step of the connecting rod mechanism 4 driving the smoke baffle 2 to move to the second position includes:

[0116] The connecting rod mechanism 4 drives the smoke baffle 2 to move;

[0117] Determining whether the smoke baffle 2 moves to the second position;

[0118] If yes, the motor 3 is controlled to be turned off.

[0119] Through the above arrangement, it can be ensured that the connecting rod mechanism 4 drives the smoke baffle 2 to move to the second position before turning off the motor 3, which can ensure the accurate position of the smoke baffle 2 and avoid the loss caused by excessive operation of the motor 3.

[0120] In some embodiments, the step of determining whether the smoke shield 2 moves to the second position includes:

[0121] Determine whether the current of motor 3 is greater than a preset value;

[0122] If yes, it is determined that the smoke shield 2 moves to the second position.

[0123] When the current of the motor 3 is greater than the preset value, it means that the swing of the connecting rod mechanism 4 encounters resistance, the smoke shield 2 has moved to the second position and cannot move further, and the current of the motor 3 increases instantaneously due to the resistance. At this time, it is determined that the smoke shield 2 moves to the second position, and the motor 3 is controlled to be turned off.

[0124] Specifically, the movement of the connecting rod mechanism 4 is restricted by the second stop block 52 abutting the second connecting rod 42. When the motor 3 drives the first connecting rod 41 and the second connecting rod 42 to swing downward as a whole, the smoke shield 2 is driven to move downward to block the air outlet until the second connecting rod 42 moves to abut against the second stop block 52. At this time, the movement is blocked and the current of the motor 3 increases instantaneously. When it is detected that the current of the motor 3 is greater than the preset value, the motor 3 is controlled to be turned off.

[0125] Specifically, a current detection device can be set to detect the current of the motor 3. The current detection device and the motor 3 are both connected to the controller for communication. The current detection device feeds back the detected current signal of the motor 3 to the controller. The controller controls the motor 3 to turn off according to the current signal fed back by the current detection device.

[0126] Furthermore, a current detection component is provided to detect the current of the motor 3 , and when the current value fed back by the current detection component is greater than a preset value, the motor 3 is controlled to be turned off.

[0127] It should be noted that the preset value is specifically the current when the motor 3 drives the connecting rod mechanism 4 to swing normally, which is specifically related to the weight of the smoke shield 2. The heavier the smoke shield 2, the larger the preset value. The specific value can be obtained through testing. In this embodiment, the preset value is 600mA, but it is not limited to this.

[0128] According to an embodiment of the present invention, another aspect discloses a kitchen system, including a cooker and a range hood of the present invention, wherein the range hood is arranged above the cooker.

[0129] Since the kitchenware system of the present invention includes the range hood of the present invention, the kitchenware system of the present invention has the same technical effect as the range hood, and this embodiment will not be described in detail herein.

[0130] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present application.

Claims

1. A smoke shield assembly, used to shield the air outlet of a range hood, characterized in that: The smoke baffle assembly comprises: Support frame (1); A smoke shield (2), the smoke shield (2) having a first position and a second position, wherein in the first position, the smoke shield (2) and the air outlet are staggered, and in the second position, the smoke shield (2) blocks the air outlet; A driving structure, comprising a motor (3) and a connecting rod mechanism (4), wherein the motor (3) is arranged on the support frame (1), the motor (3) has a motor shaft (31), and the connecting rod mechanism (4) comprises a first connecting rod (41) and a second connecting rod (42) which are parallel to each other, one end of the first connecting rod (41) is fixedly connected to the motor shaft (31), the other end of the first connecting rod (41) is hinged to the smoke baffle (2), one end of the second connecting rod (42) is hinged to the support frame (1), and the other end of the second connecting rod (42) is hinged to the smoke baffle (2); The motor (3) drives the motor shaft (31) to rotate, driving the first connecting rod (41) to swing around the motor shaft (31), thereby driving the second connecting rod (42) to swing synchronously relative to the support frame (1), driving the smoke shield (2) to move to the first position or the second position.

2. The smoke baffle assembly according to claim 1, characterized in that: The connecting rod mechanism (4) also includes a transmission connecting rod (43), the transmission connecting rod (43) is fixedly connected to the smoke baffle (2), and the other end of the first connecting rod (41) and the other end of the second connecting rod (42) are both hinged to the transmission connecting rod (43).

3. The smoke baffle assembly according to claim 1, characterized in that: The smoke shield assembly further comprises a limiting structure (5), wherein the limiting structure (5) is arranged on the support frame (1), and based on the smoke shield (2) being in the first position, the limiting structure (5) abuts against one of the first connecting rod (41) and the second connecting rod (42).

4. The smoke baffle assembly according to claim 3, characterized in that: Based on the smoke baffle (2) being in the second position, the limiting structure (5) abuts against the other of the first connecting rod (41) and the second connecting rod (42).

5. The smoke baffle assembly according to claim 4, characterized in that: The limiting structure (5) comprises: A first stopper (51) is arranged on the support frame (1), and the first stopper (51) is located above the first connecting rod (41), and based on the smoke shield (2) being in the first position, the first stopper (51) and the first connecting rod (41) are in abutment with each other; A second stopper (52) is arranged on the support frame (1), and the second stopper (52) is located below the second connecting rod (42). Based on the smoke baffle (2) being in the second position, the second stopper (52) and the second connecting rod (42) are in abutment with each other.

6. The smoke baffle assembly according to any one of claims 1 to 5, characterized in that: Two drive structures are provided, and the two drive structures are respectively arranged on both sides of the smoke baffle plate (2) along the length direction of the smoke baffle plate (2).

7. The smoke baffle assembly according to claim 6, characterized in that: The smoke baffle assembly also includes a controller, and the controller is communicatively connected to the two motors (3) of the two drive structures.

8. The smoke baffle assembly according to any one of claims 1 to 5, characterized in that: The smoke baffle (2) comprises: The smoke shielding bracket (21) is hingedly connected to the first connecting rod (41) and the second connecting rod (42); The smoke barrier panel (22) is fixedly connected to the smoke barrier bracket (21).

9. A range hood, characterized in that: include: An outer cover, wherein a fan is arranged inside, the outer cover is provided with an air outlet, and the air outlet direction of the fan is arranged toward the air outlet; The smoke shield assembly according to any one of claims 1 to 8, wherein the smoke shield (2) of the smoke shield assembly is movably arranged at the air outlet.

10. A method for controlling a range hood, characterized in that: The control method of the range hood is used to control the range hood according to claim 9, and the control method of the range hood comprises: Get the fan start signal; According to the fan start signal, the motor (3) is controlled to drive the connecting rod mechanism (4) to swing, and the connecting rod mechanism (4) drives the smoke baffle (2) to move to the first position; Obtaining a shutdown signal of the fan; The motor (3) is controlled according to the fan closing signal to drive the connecting rod mechanism (4) to swing, and the connecting rod mechanism (4) drives the smoke baffle (2) to move to the second position.

11. The control method of the range hood according to claim 10, characterized in that: The connecting rod mechanism (4) drives the smoke baffle (2) to move to the first position, comprising: The connecting rod mechanism (4) drives the smoke baffle (2) to move; determining whether the smoke baffle (2) has moved to the first position; If yes, the motor (3) is controlled to be turned off.

12. The control method of the range hood according to claim 11, characterized in that: The step of judging whether the smoke shield (2) has moved to the first position comprises: Determining whether the current of the motor (3) is greater than a preset value; If yes, it is determined that the smoke baffle (2) moves to the first position.

13. The control method of the range hood according to any one of claims 10 to 12, characterized in that: The connecting rod mechanism (4) drives the smoke baffle (2) to move to the second position, comprising: The connecting rod mechanism (4) drives the smoke baffle (2) to move; determining whether the smoke baffle (2) has moved to the second position; If yes, the motor (3) is controlled to be turned off.

14. The control method of the range hood according to claim 13, characterized in that: The step of judging whether the smoke shield (2) has moved to the second position comprises: Determining whether the current of the motor (3) is greater than a preset value; If yes, it is determined that the smoke baffle (2) moves to the second position.

15. A kitchenware system, characterized in that: include: Cooking stove; The range hood as described in claim 9 is arranged above the stove.

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