Range hood and control method thereof

Abstract

The invention discloses an extractor hood and a control method thereof. The extractor hood comprises a shell assembly with a smoke collecting cavity, and an air inlet communicated with the smoke collecting cavity is formed in the front face of the shell assembly; the air cabinet mechanism is arranged at the top of the shell assembly and communicates with the smoke collecting cavity; the air guide assembly is arranged in the smoke collecting cavity in a front-back moving mode, and the lower end of the air guide assembly is movably connected with the bottom of the shell assembly; the smoke gathering mechanism is movably arranged at the air inlet and movably connected with the upper end of the air guide assembly, the smoke gathering mechanism can drive the air guide assembly to overturn backwards when the air inlet is opened, and the smoke gathering mechanism can drive the air guide assembly to overturn forwards when the air inlet is closed. According to the range hood, the smoke suction effect can be improved, and resonance and noise aggravation caused by vortex generated by oil smoke in the shell assembly are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of range hoods, and in particular to a range hood and a control method thereof. Background Art

[0002] The shell thickness of conventional ultra-thin-wall embedded range hoods is less than 140mm. Compared with traditional side-mounted range hoods whose shell thickness is generally 350mm, the shell and air inlet channel size of ultra-thin-wall embedded range hoods are greatly reduced. The reduction in the size of the air inlet channel will lead to a weakening of the ability to absorb and exhaust oil fumes, and the oil fumes cannot be discharged, the kitchen air becomes worse, and damages human physical and mental health.

[0003] The conventional approach to solving the above problem is to add a reversible smoke collecting plate. When the smoke collecting plate is opened, the smoke collecting distance is increased to improve the smoke exhaust effect. However, if the smoke collecting distance exceeds 350mm after the smoke collecting plate is opened, it is easy to block the user's cooking vision and head; if the smoke collecting distance is less than 350mm, oil smoke will overflow. Therefore, the exhaust volume is usually increased by increasing the speed of the main fan to avoid oil smoke overflow, but at the same time, the working noise of the range hood increases, reducing the auditory comfort of the product. Summary of the invention

[0004] The present invention aims to solve at least one of the problems existing in the prior art to a certain extent. To this end, the present invention provides a range hood that can improve the smoke extraction effect and reduce the resonance and noise caused by the vortex generated by the oil smoke in the housing component. The present invention also provides a control method for the range hood.

[0005] According to the range hood provided above, it is implemented through the following technical solutions:

[0006] A range hood comprises: a shell assembly having a smoke collecting chamber, an air inlet connected to the smoke collecting chamber is opened on the front side of the shell assembly; a wind cabinet mechanism is arranged on the top of the shell assembly and connected to the smoke collecting chamber; an air guide assembly is movably arranged in the smoke collecting chamber, and the lower end of the air guide assembly is movably connected to the bottom of the shell assembly; and a smoke collecting mechanism is movably arranged at the air inlet and movably connected to the upper end of the air guide assembly, the smoke collecting mechanism can drive the air guide assembly to flip backward when opening the air inlet, and can flip the air guide assembly forward when closing the air inlet.

[0007] In some embodiments, the air guide assembly includes an air guide plate, two mounting brackets and two connecting rods, the left and right sides of the lower end of the air guide plate are movably connected to the bottom of the outer shell assembly through the two mounting brackets, and the left and right sides of the upper end of the air guide plate are movably connected to the smoke collecting mechanism through the two connecting rods.

[0008] In some embodiments, the smoke collecting mechanism includes a drive assembly and a flap assembly, the upper and lower ends of the flap assembly are respectively movably connected to the outer shell assembly and the upper end of the air guide assembly, the drive assembly is installed in the smoke collecting chamber and its output end is movably connected to the back side of the flap assembly, and is used to drive the flap assembly to open or close the air inlet, and the flap assembly can link the air guide assembly to flip backward / forward when opening / closing the air inlet.

[0009] In some embodiments, the smoke collecting mechanism further includes an oil net assembly, and the oil net assembly is movably disposed behind the flap assembly, and the flap assembly is movably connected to the upper end of the air guide assembly through the oil net assembly.

[0010] In some embodiments, the smoke gathering mechanism includes a power component and a smoke guide component. The smoke guide component is movably arranged at the air inlet and is linked to the upper end of the air guide component. The power component is installed in the smoke collecting chamber and the output end is movably connected to the smoke guide component, so as to drive the smoke guide component to move up to open or move down to close the air inlet. When the smoke guide component moves up / down, it can drive the air guide component to flip forward / backward.

[0011] In some embodiments, the smoke collecting mechanism further includes two guide rail assemblies, and the left and right ends of the smoke guiding assembly are slidably connected to the outer shell assembly via the two guide rail assemblies.

[0012] In some embodiments, the smoke gathering mechanism includes a driving assembly, a flap assembly and a smoke guide assembly. The smoke guide assembly can be movably disposed up and down at the lower end of the air inlet and is linked with the upper end of the air guide assembly for opening or closing the lower part of the air inlet; the flap assembly is disposed above the smoke guide assembly, and its upper and lower ends are respectively movably connected with the outer shell assembly and the upper end of the smoke guide assembly; the driving assembly is installed in the smoke collecting chamber and its output end is connected with the flap assembly for driving the flap assembly to open or close the upper part of the air inlet; the flap assembly can link the smoke guide assembly and the air guide assembly when opening / closing the upper part of the air inlet.

[0013] In some embodiments, the smoke collecting mechanism also includes an oil net assembly and / or two guide rail assemblies. The oil net assembly can be movably arranged behind the flap assembly. The flap assembly is movably connected to the upper end of the smoke guide assembly through the oil net assembly. The left and right ends of the smoke guide assembly are slidably connected to the outer shell assembly through the two guide rail assemblies.

[0014] In some embodiments, the drive assembly includes a push rod motor, the push rod motor includes a motor housing, a drive unit, a screw rod, a sliding rod, a Hall sensor and a plurality of magnetic parts, the screw rod is rotatably disposed in the motor housing, the drive unit is disposed on the motor housing and is transmission-connected to the screw rod, one end of the sliding rod is connected to the back of the flap assembly, and the other end is telescopically mounted on the outside of an end of the screw rod away from the drive unit, a plurality of the magnetic parts are installed at different positions of the motor housing, the Hall sensor is disposed on the sliding rod and can be inductively contacted with any of the magnetic parts.

[0015] In some embodiments, a smoke leakage sensor is provided at the bottom of the wind cabinet mechanism and / or at the left and right side walls of the housing assembly.

[0016] In some embodiments, a cleaning mechanism is further included. A water inlet interface is provided at the bottom of the outer shell component. The cleaning mechanism is respectively arranged in the wind cabinet mechanism and the outer shell component and is connected to the water inlet interface for cleaning the wind cabinet mechanism.

[0017] According to the control method of a range hood provided above, it is implemented through the following technical solutions:

[0018] A control method for a range hood, comprising the range hood as described above, the control method comprising the following steps:

[0019] S11, starting the oil absorption program and obtaining preset control information, wherein the preset control information includes the cook's personal information or the selected dish program;

[0020] S12, determining a preset rotation speed of the wind cabinet mechanism and a preset opening of the smoke collecting mechanism according to the preset control information;

[0021] S13, obtaining and judging whether the concentration of the escaping oil smoke reaches the standard concentration value, if not, continue to execute this step, if yes, increase the rotation speed of the wind cabinet mechanism and / or the opening of the smoke collection mechanism.

[0022] A control method for a range hood, comprising the range hood as described above, wherein the range hood is provided with a cleaning mechanism for cleaning the wind cabinet mechanism, and the control method comprises the following steps:

[0023] S21, start the cleaning program, adjust the smoke collecting mechanism to the minimum opening, and the air guide assembly is synchronously flipped backward to the minimum angle under the drive of the smoke collecting mechanism;

[0024] S22, control the cleaning mechanism to start working;

[0025] S23, after cleaning is completed, close the cleaning mechanism and the smoke collecting mechanism.

[0026] Compared with the prior art, the present invention has at least the following beneficial effects:

[0027] 1. The range hood of the present invention is characterized in that the air guide assembly is arranged in the smoke collecting chamber of the housing assembly so as to be movable forward and backward, and the smoke collecting mechanism is movably arranged at the air inlet and linked with the air guide assembly. When the smoke collecting mechanism opens the air inlet, it can drive the air guide assembly to flip backward to increase the air inlet angle between the air guide assembly and the air inlet, which is beneficial to improving the oil smoke speed and smoke exhaust efficiency, and at the same time can reduce the resonance and noise aggravation caused by the vortex of oil smoke in the housing assembly. When the smoke collecting mechanism closes the air inlet, the air guide assembly can flip forward to make the upper end of the air guide assembly close to the back of the smoke collecting mechanism, which can prevent oil or sewage from directly splashing and overflowing to the outside of the air inlet to cause pollution, and at the same time save the cost of the driving assembly.

[0028] 2. When the range hood starts the cleaning program, the smoke collection mechanism can drive the air guide component to flip backward to the minimum air inlet angle. At this time, the air guide component can isolate the sewage, so that the sewage generated by cleaning the wind cabinet mechanism can flow smoothly from the wind cabinet mechanism to the smoke collecting chamber located in the area behind the air guide component, avoiding the sewage from dripping directly onto the air guide component, and preventing the sewage from directly splashing and overflowing outside the air inlet to cause pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram of the range hood in the closed state in Embodiment 1 of the present invention;

[0030] Figure 2 is a cross-sectional view of the range hood in embodiment 1 of the present invention in a closed state;

[0031] Figure 3 is a schematic structural diagram of the range hood in the open state in Embodiment 1 of the present invention;

[0032] Figure 4 is a cross-sectional view of the range hood in Embodiment 1 of the present invention in a minimum open state;

[0033] Figure 5 is a cross-sectional view of the range hood in Embodiment 1 of the present invention in a state of being maximally opened;

[0034] Figure 6 It is a partial cross-sectional view of the range hood in the open state in Example 1 of the present invention Figure 1 ;

[0035] Figure 7 It is a partial cross-sectional view of the range hood in the open state in Example 1 of the present invention Figure 2 ;

[0036] Figure 8is a schematic structural diagram of a driving component in Embodiment 1 of the present invention;

[0037] Fig. 9 is a cross-sectional view of a driving assembly in Embodiment 1 of the present invention;

[0038] Fig.10 is a cross-sectional view of the range hood in the open state in Embodiment 1 of the present invention;

[0039] Fig.11 It is a partial cross-sectional view of the range hood in the open state in Example 1 of the present invention Figure 3 .

[0040] In the figure: 1-housing assembly, 11-smoke collecting chamber, 12-air inlet, 13-oil leakage hole, 14-water inlet interface; 2-wind cabinet mechanism, 21-box assembly; 3-oil cup assembly;

[0041] 4-air guide assembly, 41-air guide plate, 42-mounting bracket, 43-connecting rod, 44-pin shaft;

[0042] 51-drive assembly, 511-motor housing, 512-drive unit, 513-screw, 514-sliding rod, 515-Hall sensor, 516-magnetic part, 517-front bracket, 518-rear bracket, 52-flip assembly, 521-glass flip, 522-lining bracket, 523-connecting bracket, 524-hinged part, 53-oil net assembly, 531-smoke hood, 532-upper bracket, 533-lower bracket, 54-smoke guide assembly, 541-glass panel, 542-fixed bracket, 55-guide rail assembly;

[0043] 6-smoke leakage sensor; 71-switch operating component, 72-control component. DETAILED DESCRIPTION

[0044] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed by the present invention.

[0045] Example 1

[0046] refer to Figure 1-5The present embodiment provides a range hood, comprising a housing component 1, a wind cabinet mechanism 2, an oil cup component 3, an air guide component 4 and a smoke collecting mechanism (not shown in the figure), wherein the housing component 1 has a smoke collecting chamber 11, an air inlet 12 is provided on the front of the housing component 1, an oil leakage hole 13 and a top mounting port (not shown in the figure) are provided at the bottom and top of the housing component 1, respectively, and the smoke collecting chamber 11 is respectively connected with the air inlet 12, the oil leakage hole 13 and the top mounting port. The wind cabinet mechanism 2 is installed on the top of the housing component 1 and is connected with the smoke collecting chamber 11. In the present embodiment, the wind cabinet mechanism 2 comprises a box component 21 and a wind cabinet component (not shown in the figure), the box component 21 is arranged at the top mounting port on the top of the housing component 1 and is connected with the smoke collecting chamber 11, the wind cabinet component is arranged in the box component 21, and the wind cabinet component has multiple working gears to form different smoking gears. The oil cup assembly 3 is detachably mounted on the bottom of the housing assembly 1 , and is connected to the smoke collecting chamber 11 through the oil leakage hole 13 , and is used to receive the medium (such as oil stains) flowing down from the housing assembly 1 .

[0047] The air guide assembly 4 can be arranged in the smoke collecting chamber 11 so as to move forward and backward, and its lower end is movably connected to the bottom of the shell assembly 1, and is used to adjust the air inlet angle between the air guide assembly 4 and the air inlet 12 to increase the oil smoke speed and smoke exhaust efficiency, and at the same time can reduce the resonance and noise caused by the vortex generated by the oil smoke in the smoke collecting chamber 11; it is also used to isolate the sewage generated by the cleaning wind cabinet assembly when starting the cleaning program to prevent the sewage from directly splashing and overflowing after entering between the air guide assembly 4 and the air inlet 12 to cause pollution. The smoke collection mechanism can be movably arranged at the air inlet 12 and movably connected to the upper end of the air guide assembly 4, and is used to open or close the air inlet 12. When the smoke collection mechanism opens / closes the air inlet 12, it can link the air guide assembly 3 to flip back / forward.

[0048] refer to Figure 3-5 When the smoke collecting mechanism opens the air inlet 12, it can drive the air guide assembly 4 to flip backwards, so that the upper end of the air guide assembly 4 is away from the air inlet 12 and the air inlet angle is increased, which is beneficial to improve the oil smoke speed and smoke exhaust efficiency, and at the same time can reduce the resonance and noise caused by the vortex generated by the oil smoke in the smoke collecting chamber 11. Figure 4 ), the upper end of the air guide component 4 is away from the back plate of the shell component 1, at this time, the backward tilt angle and the air inlet angle of the air guide component 4 are both minimum, the distance between the air guide component 4 and the back of the shell component 1 is large, the oil or sewage flowing down from the wind cabinet mechanism will not directly drip onto the air guide component 4, but directly drip into the area of ​​the smoke collecting chamber 11 located behind the air guide component 4, at this time, the air guide component 4 plays an isolating role to prevent the oil or sewage from directly splashing and overflowing to the outside of the air inlet 12 to cause pollution; when the smoke collection mechanism is opened to the maximum position (see Figure 5), the upper end of the air guide assembly 4 abuts against the back plate of the housing assembly 1, and at this time, the rearward inclination angle and the air inlet angle of the air guide assembly 4 are both maximum.

[0049] refer to Figure 1-2 On the contrary, when the smoke collecting mechanism closes the air inlet 12, the air guide assembly 4 can be flipped forward so that the upper end of the air guide assembly 4 is close to the back of the smoke collecting mechanism. At this time, the air guide assembly 4 is arranged vertically or tilted forward or slightly tilted backward. The distance between the air guide assembly 4 and the back of the shell assembly 1 is the largest. The oil or sewage flowing down from the wind cabinet mechanism will not directly drip onto the air guide assembly 4, but will only directly drip into the area of ​​the smoke collecting chamber 11 located behind the air guide assembly 4. It can be seen that by arranging the air guide assembly 4 in the smoke collecting chamber 11 so that it can move forward and backward and is linked with the smoke collecting mechanism, the air guide assembly 4 has the dual functions of guiding, reducing noise and isolating. Since the movement of the smoke collecting mechanism can drive the air guide assembly 4, the cost of the driving assembly can be saved and the space occupied by the internal part of the shell assembly can be reduced.

[0050] refer to Figure 1-6 The wind guide assembly 4 includes a wind guide plate 41, two mounting brackets 42 and two connecting rods 43. The wind guide plate 41 is arranged in the smoke collecting chamber 11 so as to be flippable forward and backward. The left and right sides of the lower end of the wind guide plate 41 are movably connected to the bottom of the housing assembly 1 through the two mounting brackets 42, and the left and right sides of the upper end of the wind guide plate 41 are movably connected to the smoke collecting mechanism through the two connecting rods 43, so as to ensure that the smoke collecting mechanism can link the wind guide plate 41 through the two connecting rods 43. In this embodiment, the left and right ends of the wind guide plate 41 are bent forward to form side flanges, the lower end of the side flange is rotatably connected to the corresponding mounting bracket 42 through the pin 44, and the upper end of the side flange is rotatably connected to the corresponding connecting rod 43 through the pin 44.

[0051] Of course, the upper end of the air guide plate 41 can also be bent backward to form an upper flange. When the smoke collecting mechanism is opened to the maximum position, the upper flange of the air guide plate 41 is configured to be suitable for abutting against the back plate of the housing assembly 1. At this time, the air guide plate 41 can receive the oil and dirt flowing down from the wind cabinet assembly of the wind cabinet mechanism 2, and the oil and dirt on the back plate of the housing assembly 1 can flow downward along the air guide plate 41. Of course, the lower end of the air guide plate 41 can also be bent backward to form a lower flange, and a plurality of oil leakage ports for the oil and dirt to pass through are opened at the rear end of the lower flange, so that the oil and dirt dripping onto the air guide plate 41 can be discharged from the oil leakage port, and finally collected from the oil leakage hole 13 into the oil cup assembly 3.

[0052] refer to Figure 1-11The smoke collecting mechanism includes a driving assembly 51, a flap assembly 52 and a smoke guide assembly 54. The smoke guide assembly 54 is movably arranged at the lower end of the air inlet 12 and is linked to the upper end of the air guide assembly 4 to open or close the lower part of the air inlet 12. The flap assembly 52 is arranged above the smoke guide assembly 54, and its upper and lower ends are respectively connected to the housing assembly 1 and the upper end of the smoke guide assembly 54 to open or close the upper part of the air inlet 12. In this embodiment, the flap assembly 52 and the smoke guide assembly 54 cooperate to close the entire air inlet 12. The driving component 51 is installed in the smoke collecting chamber 11 and its output end is connected to the back of the flap component 52, which is used to drive the flap component 52 to open or close the upper part of the air inlet 12. When the flap component 52 opens / closes the upper part of the air inlet 12, it can link the smoke guide component 54 to move up / down and the air guide component 4 to flip forward / backward, so that the smoke guide component 54 moves up to open or moves down to close the lower part of the air inlet 12, and when the smoke guide component 54 moves up / down, it can drive the air guide component 4 to flip backward or forward, so as to adjust the air inlet angle and air inlet area between the air guide component and the air inlet.

[0053] It can be seen that by realizing multi-stage linkage through a driving component 51, the cost of the driving component can be saved and the space occupied inside the range hood can be reduced. When the driving component 51 drives the flap component 52 to open to a set angle, the upper part of the air inlet 12 is opened to serve as an upper smoking port, mainly sucking and exhausting the oil smoke on the outside and the upper part; at the same time, the flap component 52 drives the smoke guide component 54 to move upward, opens or closes the lower part of the air inlet 12 to serve as a lower smoking port, mainly sucking and exhausting the oil smoke on the inner side of the wall and at a lower position, forming an upper and lower double suction. At this time, the wind cabinet component machine of the wind cabinet mechanism 2 can be set to a lower speed and a smaller air volume, which can meet the smoking effect and hearing comfort, improve the smoking effect, and reduce working noise.

[0054] In this embodiment, the flap assembly 52 is arranged at the upper end of the front side of the shell assembly 1. After the flap assembly 52 is opened, the smoke collection distance does not exceed 350 mm, and will not cause obstruction of the cooking line of sight. The first and second air inlets form a double suction up and down. The second air inlet mainly absorbs and exhausts the oil smoke on the inner side of the wall and the lower position, and the first air inlet mainly absorbs and exhausts the oil smoke on the outer side and the upper part. The main fan can be set to a lower speed and a smaller air volume to meet the smoking effect and hearing comfort.

[0055] refer to Figure 7-9The driving assembly 51 includes a push rod motor (not shown in the figure), a front bracket 517 and a rear bracket 518. The rear end of the push rod motor is fixedly mounted on the back plate or top plate of the housing assembly 1 through the rear bracket 518, and the front end is movably connected to the back of the flap assembly 52 through the front bracket 517. The push rod motor includes a motor housing 511, a driving unit 512, a screw rod 513, a sliding rod 514, a Hall sensor 515 and a plurality of magnetic parts 516. The screw rod 513 is rotatably arranged in the motor housing 511. The driving unit 512 is arranged on the motor housing 511 and is transmission-connected with the screw rod 513. One end of the sliding rod 514 is connected to the back of the flap assembly 52, and the other end is telescopically sleeved outside one end of the screw rod 513 away from the driving unit 512. When the driving unit 512 drives the screw rod to rotate, the rotation of the screw rod 513 can link the sliding rod 514 to telescopic movement, so that the sliding rod 514 can telescopic movement along the length direction of the screw rod. A plurality of magnetic members 516 are installed at different positions inside the motor housing 511. In this embodiment, the plurality of magnetic members 516 are arranged at intervals along the length direction of the sliding rod 514. The Hall sensor 515 is arranged on the sliding rod 514 and can be inductively contacted with any magnetic member 516. As a result, the driving assembly 51 has a plurality of different strokes, and the flap assembly 52 and the air guide assembly 4 have a plurality of different flipping opening and closing angles, and the smoke guide assembly 54 has a plurality of different up and down movement strokes, which can adapt to more cooking scenes with different amounts of oil smoke, achieve the best match between the opening and closing angle and the speed of the wind cabinet assembly, and meet the requirements of smoking effect and low noise. When the oil smoke concentration is low, the opening of the flap assembly 52, the smoke guide assembly 54 and the air guide assembly 4 is small; when the oil smoke concentration is high, the opening of the flap assembly 52, the smoke guide assembly 54 and the air guide assembly 4 is large.

[0056] refer to Figure 7 and Figure 10-11 The flap assembly 52 includes a glass flap 521, a lining bracket 522, two connecting brackets 523 and two hinges 524. The upper end of the glass flap 521 is rotatably connected to the top of the housing assembly 1 through the two hinges 524. The lining bracket 522 is installed on the back of the glass flap 521 and is movably connected to the output end of the driving assembly 51, so that the driving assembly can reliably connect to the flap assembly 52 and effectively drive the flap assembly to flip and open. The two connecting brackets 523 are respectively installed on the left and right sides of the back of the glass flap 521, and are used to movably connect to the left and right sides of the upper end of the air guide assembly 4 or the upper end of the oil net assembly 53, so that the flap assembly 52 can be reliably connected to the air guide assembly 4 or the oil net assembly 53, ensuring that the flap assembly 52 can reliably link the air guide assembly 4 or the oil net assembly 53 when flipping and opening.

[0057] Furthermore, the smoke collecting mechanism also includes an oil net assembly 53 and / or two guide rail assemblies 55. The oil net assembly 53 can be movably arranged behind the flap assembly 52. ​​The flap assembly 52 is movably connected to the upper end of the smoke guide assembly 54 through the oil net assembly 53. When the flap assembly 52 opens or closes the upper part of the air inlet 12, it can drive the oil net assembly 53 to extend or retract into the smoke collecting chamber 11 of the outer shell assembly 1, and when the oil net assembly 53 extends or retracts into the outer shell assembly 1, it can drive the smoke guide assembly 54 to move up and down. When the oil net assembly 53 moves forward and downward as the flap assembly 52 opens, the upper smoke outlet and the negative pressure area move downward and forward from the vertical plane, effectively preventing the escape of oil smoke. In addition, the oil stains attached to the surface of the driving assembly and the surface of the switch operating assembly 71 installed on the back of the flap assembly 52 can flow to the oil net assembly 53, and the oil stains are guided to the smoke collecting chamber 11 of the shell assembly 1 through the oil net assembly 53, which can solve the oil path problem of the driving assembly and the switch operating assembly 71 installed on the back of the flap assembly 52, and prevent oil stains from dripping onto the stove. The left and right ends of the smoke guide assembly 54 are connected to the shell assembly 1 by two guide rail assemblies 55 for sliding up and down, so that the up and down sliding of the smoke guide assembly 54 is smoother.

[0058] refer to Fig.11 The oil net assembly 53 includes a smoke collecting hood 531, two upper brackets 532 and two lower brackets 533. The smoke collecting hood 531 is arranged behind the flap assembly and has a plurality of air inlet mesh holes. The left and right sides of the upper end of the smoke collecting hood 531 are rotatably connected to the flap assembly 52 through the two upper brackets 532, and the left and right sides of the lower end of the smoke collecting hood 531 are movably connected to the housing assembly 1 and / or the smoke guide assembly 54 through the two lower brackets 533.

[0059] refer to Figure 6 or Fig.11 The smoke guide assembly 54 includes a glass panel 541 and two fixed brackets 542. The two fixed brackets 542 are fixedly installed on the left and right sides of the back of the glass panel 541. The fixed brackets 542 are slidably connected to the outer shell assembly 1 through the guide rail assembly 55. The lower bracket 533 of the oil net assembly 53 is movably connected to the upper end of the corresponding fixed bracket 542, and the connecting rod 43 of the air guide assembly 4 is movably connected to the lower end of the corresponding fixed bracket 542, thereby ensuring that the oil net assembly 53 can reliably drive the smoke guide assembly 54 to move up and down when it moves.

[0060] refer to Figure 1-10, further, it also includes a switch operating component 71 and a control component 72. The switch operating component 71 is provided on the back of the flap component of the smoke collecting mechanism or the back of the smoke guiding component. The switch operating component 71 supports account login and pre-stored personal information. The account login methods include fingerprint login, face recognition, password login, etc. The personal information mainly includes age, region, taste preference, etc. A control component 72 is provided on the top of the wind cabinet mechanism 2. The control component 72 is electrically connected to the switch operating component 71, the wind cabinet mechanism 2 and the smoke collecting mechanism respectively. Different recipes are set in the control component 72. When verifying and testing the recipes in the early stage, different smoke collecting opening and closing angles and wind cabinet component speeds are set according to the amount of oil smoke of different dishes, and the smoke collecting opening and closing angle and speed information are bound to the dish program. When the user selects a specific dish to cook, the control component 72 opens the smoke collecting plate mechanism to the opening and closing angle corresponding to the dish and executes a specific wind cabinet component speed.

[0061] refer to Figure 3 Furthermore, it also includes a smoke leakage sensor 6. A smoke leakage sensor 6 is provided at the bottom of the wind cabinet mechanism 2 and / or the left and right side walls of the outer shell component 1. The smoke leakage sensor 6 is electrically connected to the control component 72 for detecting smoke leakage of the range hood. The control component 72 can adjust the smoke collection opening and closing angle of the smoke collection mechanism and / or the wind cabinet component rotation speed of the wind cabinet mechanism 2 according to the smoke leakage situation.

[0062] refer to Figure 4-5 Furthermore, it also includes a cleaning mechanism (not shown in the figure), and a water inlet interface 14 is provided at the bottom of the outer shell component 1. The cleaning mechanism is respectively arranged in the wind cabinet mechanism 2 and the outer shell component 1 and is connected with the water inlet interface 14, and is used to clean the wind cabinet component of the wind cabinet mechanism 2, so that the range hood has a cleaning function.

[0063] Example 2

[0064] The difference between this embodiment and embodiment 1 is that the specific structure of the smoke-collecting mechanism is different, that is, the smoke-collecting mechanism omits the smoke-guiding component, and the installation position of the flap component 52 is moved downward. In this embodiment, the upper end of the front of the shell component 1 is closed, and the air inlet 12 is arranged at the lower end of the front of the shell component 1; the smoke-collecting mechanism includes a driving component 51 and a flap component 52, the flap component 52 is rotatably arranged in front of the air-guiding component 4, and the upper and lower ends of the flap component 52 are respectively movably connected with the upper end of the front of the shell component 1 and the upper end of the air-guiding component 4, the driving component 51 is installed in the smoke collecting chamber 11 and one end thereof is connected to the shell component 1, and the other end (i.e., the output end) is movably connected with the back of the flap component 52, which is used to drive the flap component 52 to open or close the air inlet 12, and the flap component 52 can be linked to the air-guiding component 4 to flip back / forward when opening / closing the air inlet 12. It can be seen that the flap component 52 does not need to rely on the smoke-guiding component to link the air-guiding component 4, and the smoke-guiding component is omitted, and the structure of the smoke-collecting mechanism is simpler and the cost is lower.

[0065] In this embodiment, the smoke collection mechanism also includes an oil net assembly 53, which is movably arranged behind the flap assembly 52. ​​The flap assembly 52 is movably connected to the upper end of the air guide assembly 4 through the oil net assembly 53. When the flap assembly 52 opens or closes the air inlet 12, it can drive the oil net assembly 53 to extend or retract into the smoke collecting chamber 11 of the shell assembly 1. As a result, it is beneficial to move the negative pressure downward, improve the smoke collection effect, and facilitate the flap assembly 52 to link the air guide assembly 4 through the oil net assembly 53. In addition, it is also convenient to guide the oil on the back of the flap assembly, the surface of the switch operating assembly 71 and the surface of the drive assembly 51 into the smoke collecting chamber 11 of the shell assembly 1 through the oil fume assembly, which can solve the oil path problem of the drive assembly and the switch operating assembly 71 installed on the back of the flap assembly 52, and prevent oil from dripping onto the stove. In other embodiments, the oil net assembly 53 can be omitted; of course, the oil net assembly 53 can also be detachably installed at the air inlet 12 instead.

[0066] Example 3

[0067] The difference between this embodiment and embodiment 1 or 2 is that the specific structure of the smoke-collecting mechanism is different, that is, the smoke-collecting mechanism omits the flap assembly, and correspondingly, the upper end of the front of the shell assembly 1 is closed, and the air inlet 12 is arranged at the lower end of the front of the shell assembly 1. The smoke-collecting mechanism includes a power component and a smoke-guiding component 54, the smoke-guiding component 54 is arranged at the air inlet 12 so as to be movable up and down and is linked with the upper end of the air-guiding component 4, the power component is installed in the smoke collecting chamber 11 and the output end is movably connected with the smoke-guiding component 54, and is used to drive the smoke-guiding component 54 to move up to open or move down to close the air inlet 12, and the smoke-guiding component 54 can drive the air-guiding component 4 to flip back and forth when it moves up / down. It can be seen that by using a power component to directly drive the smoke-guiding component 54 to move up and down, the flap assembly is omitted, the structure of the smoke-collecting mechanism is simpler, the cost is lower, and the problem of blocking the field of vision due to the setting of the flap assembly is solved at the same time.

[0068] In addition, the smoke collecting mechanism further includes two guide rail assemblies 55 , and the left and right ends of the smoke guiding assembly 54 are connected to the outer shell assembly 1 in an upward and downward sliding manner through the two guide rail assemblies 55 .

[0069] Example 4

[0070] This embodiment provides a control method for a range hood, which has a range hood as described in any one of Embodiments 1 to 3, and the control method comprises the following steps:

[0071] S11, starting the oil absorption program and obtaining preset control information, wherein the preset control information includes the cook's personal information or the selected dish program;

[0072] S12, determining the preset rotation speed of the wind cabinet mechanism 2 and the preset opening of the smoke collection mechanism according to the preset control information;

[0073] Specifically, the control component 72 executes the control program of the wind cabinet mechanism 2 and the smoke collecting mechanism according to the preset control information, adjusts the wind cabinet component of the wind cabinet mechanism 2 to the preset rotation speed corresponding to the preset control information, and opens the flap component 52 and / or the smoke guiding component 54 of the smoke collecting mechanism to the preset opening corresponding to the preset control information.

[0074] When the smoke gathering mechanism has both a flap assembly 52 and a smoke guide assembly 52, the flap assembly 52 is opened to a preset opening corresponding to the preset control information to open the upper part of the air inlet; the flap assembly 52 drives the smoke guide assembly 52 to move upward and open to open the lower part of the air inlet, thereby forming an upper and lower double suction effect; when the smoke guide assembly 52 moves upward, it drives the air guide assembly 4 to flip backward to adjust the air inlet angle and air inlet area, thereby facilitating the improvement of the oil fume speed and the oil suction effect.

[0075] When the smoke collecting mechanism only has the flap assembly 52, the flap assembly 52 is opened to a preset opening corresponding to the preset control information to open the air inlet, and the flap assembly 52 drives the air guide assembly 4 to flip backward. Alternatively, when the smoke collecting mechanism only has the smoke guide assembly 52, the smoke guide assembly 52 is driven to move upward to a preset opening corresponding to the preset control information to open the air inlet, and the smoke guide assembly 52 drives the air guide assembly 4 to flip backward when moving upward.

[0076] S13, obtaining and judging whether the concentration of the escaping oil smoke reaches the standard concentration value, if not, continue to execute this step, if yes, increase the rotation speed of the wind cabinet mechanism 2 and / or the opening of the smoke collection mechanism.

[0077] Specifically, the smoke leakage sensor 6 detects in real time whether the concentration of escaping oil smoke exceeds the standard. If not, the current opening and speed are maintained; if so, the speed of the wind cabinet mechanism 2 and / or the opening of the smoke collection mechanism are increased.

[0078] It can be seen that when starting the oil suction program, by determining the preset speed of the wind cabinet mechanism and the preset opening of the smoke collection mechanism according to the preset control information, it is beneficial to improve the adaptability and smoking effect of the product; in addition, by increasing the speed of the wind cabinet mechanism 2 and / or the opening of the smoke collection mechanism when the escaping oil fume concentration exceeds the standard, in order to ensure the smoking effect and low noise, it can adapt to more cooking scenes with different oil fume amounts.

[0079] Furthermore, the specific steps of increasing the rotation speed of the wind cabinet mechanism 2 and / or the opening of the smoke collection mechanism include:

[0080] The smoke collecting mechanism maintains the current opening, the speed of the wind cabinet component of the wind cabinet mechanism 2 increases, the air volume increases, and it continues to run for a period of time; it obtains and determines again whether the concentration of escaping oil smoke exceeds the standard. If there is still oil smoke escaping, the increased air volume is maintained and the opening of the smoke collecting mechanism is further increased; this cycle is repeated until the amount of escaping oil smoke is detected to be within the normal range.

[0081] When the opening of the smoke collecting mechanism is increased to the maximum opening, the speed of the wind cabinet component of the wind cabinet mechanism 2 reaches the maximum speed. At this time, if the smoke leakage sensor 6 detects that there is still oil smoke escaping, the control component 72 prompts that the product has a minor fault. If the control component 72 detects that the frequency of this phenomenon is high, more than three times a week, the background will report the abnormal data to the after-sales service for processing.

[0082] Example 5

[0083] This embodiment provides a control method for a range hood, which has a range hood as described in any one of Embodiments 1 to 3, wherein the range hood is provided with a cleaning mechanism for cleaning the wind cabinet components of the wind cabinet mechanism 2, and the control method comprises the following steps:

[0084] S21, start the cleaning program, adjust the smoke collecting mechanism to the minimum opening, and the air guide component 4 is synchronously flipped backward to the minimum angle under the drive of the smoke collecting mechanism;

[0085] refer to Figure 5 When the smoke collecting mechanism has both a flap assembly 52 and a smoke guide assembly 52, the air guide assembly 4 is linked with the flap assembly 52 through the smoke guide assembly 52. ​​At this time, if the range hood starts the cleaning program, the flap assembly 52 is adjusted to the minimum opening angle, and the flap assembly 52 drives the smoke guide assembly 52 to move up to the minimum upward position. When the smoke guide assembly 52 moves up, it drives the air guide assembly 4 to flip backward to the minimum angle.

[0086] When the smoke collecting mechanism only has the flap assembly 52, the air guide assembly 4 is linked with the flap assembly 52. ​​At this time, if the range hood starts the cleaning program, the flap assembly 52 is adjusted to the minimum opening angle, and the flap assembly 52 drives the air guide assembly 4 to flip backward to the minimum angle. Or when the smoke collecting mechanism only has the smoke guide assembly 52, the air guide assembly 4 is linked with the smoke guide assembly 52. ​​At this time, if the range hood starts the cleaning program, the smoke guide assembly 52 is driven to move up to the minimum upward position, and the smoke guide assembly 52 drives the air guide assembly 4 to flip backward to the minimum angle when it moves up.

[0087] S22, control the cleaning mechanism to start working;

[0088] S23, after cleaning is completed, close the cleaning mechanism and the smoke collecting mechanism.

[0089] It can be seen that during the cleaning procedure, the smoke collecting mechanism is adjusted to the minimum opening, and the air guide component 4 is driven by the smoke collecting mechanism to synchronously flip backward to the minimum angle. At this time, the air guide component 4 has no obstruction on the smoke collecting chamber of the outer shell component 1, which not only ensures the smoothness of the air intake when the wind cabinet mechanism rotates for cleaning, but also ensures that the sewage generated by cleaning flows smoothly from the wind cabinet component of the wind cabinet mechanism to the smoke collecting chamber located in the area behind the air guide component, and is finally collected into the oil cup component 3, thereby preventing sewage from dripping directly to the air guide component. The air guide component plays an isolation role to prevent sewage from directly splashing and overflowing to cause pollution.

[0090] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A range hood, characterized in that: include: A housing component (1) having a smoke collecting chamber (11), wherein an air inlet (12) communicating with the smoke collecting chamber (11) is provided on the front side of the housing component (1); A wind cabinet mechanism (2) is arranged on the top of the housing component (1) and is connected to the smoke collecting chamber (11); An air guide component (4) is disposed in the smoke collecting chamber (11) so as to be movable forward and backward, and a lower end of the air guide component (4) is movably connected to the bottom of the housing component (1); and The smoke collecting mechanism is movably arranged at the air inlet (12) and movably connected to the upper end of the air guide assembly (4); when the smoke collecting mechanism opens the air inlet (12), it can drive the air guide assembly (4) to flip backward; and when the smoke collecting mechanism closes the air inlet (12), it can cause the air guide assembly (4) to flip forward.

2. A range hood according to claim 1, characterized in that: The air guide assembly (4) comprises an air guide plate (41), two mounting brackets (42) and two connecting rods (43); the left and right sides of the lower end of the air guide plate (41) are movably connected to the bottom of the housing assembly (1) via the two mounting brackets (42); and the left and right sides of the upper end of the air guide plate (41) are movably connected to the smoke collecting mechanism via the two connecting rods (43).

3. The range hood according to claim 1, characterized in that: The smoke collecting mechanism comprises a driving component (51) and a flap component (52); the upper and lower ends of the flap component (52) are respectively movably connected to the housing component (1) and the upper end of the air guide component (4); the driving component (51) is installed in the smoke collecting chamber (11) and its output end is movably connected to the back side of the flap component (52) for driving the flap component (52) to open or close the air inlet (12); when the flap component (52) opens / closes the air inlet (12), it can link the air guide component (4) to flip back / forth.

4. The range hood according to claim 3, characterized in that: The smoke collecting mechanism further comprises an oil net assembly (53), wherein the oil net assembly (53) is movably arranged behind the flap assembly (52), and the flap assembly (52) is movably connected to the upper end of the air guide assembly (4) via the oil net assembly (53).

5. The range hood according to claim 1, characterized in that: The smoke gathering mechanism comprises a power component and a smoke guide component (54); the smoke guide component (54) is movably arranged at the air inlet (12) and is linked to the upper end of the air guide component (4); the power component is installed in the smoke collecting chamber (11) and the output end is movably connected to the smoke guide component (54) and is used to drive the smoke guide component (54) to move upward to open or downward to close the air inlet (12); when the smoke guide component (54) moves upward / downward, it can drive the air guide component (4) to flip backward / forward.

6. The range hood according to claim 5, characterized in that: The smoke collecting mechanism further comprises two guide rail assemblies (55), and the left and right ends of the smoke guiding assembly (54) are connected to the outer shell assembly (1) in an upward and downward sliding manner via the two guide rail assemblies (55).

7. The range hood according to claim 1, characterized in that: The smoke gathering mechanism comprises a driving component (51), a flap component (52) and a smoke guiding component (54); the smoke guiding component (54) is movably arranged at the lower end of the air inlet (12) and is linked to the upper end of the air guiding component (4) for opening or closing the lower part of the air inlet (12); the flap component (52) is arranged above the smoke guiding component (54), and its upper and lower ends are movably connected to the shell component (1) and the upper end of the smoke guiding component (54) respectively; the driving component (51) is installed in the smoke collecting chamber (11) and its output end is connected to the flap component (52) for driving the flap component (52) to open or close the upper part of the air inlet (12); when the flap component (52) opens / closes the upper part of the air inlet (12), it can link the smoke guiding component (54) and the air guiding component (4).

8. The range hood according to claim 7, characterized in that: The smoke collecting mechanism further comprises an oil net assembly (53) and / or two guide rail assemblies (55); the oil net assembly (53) is movably arranged behind the flap assembly (52); the flap assembly (52) is movably connected to the upper end of the smoke guide assembly (54) via the oil net assembly (53); the left and right ends of the smoke guide assembly (54) are slidably connected to the outer shell assembly (1) via the two guide rail assemblies (55).

9. A range hood according to claim 3 or 7, characterized in that: The driving assembly (51) includes a push rod motor, and the push rod motor includes a motor housing (511), a driving unit (512), a screw rod (513), a sliding rod (514), a Hall sensor (515) and a plurality of magnetic parts (516). The screw rod (513) is rotatably arranged in the motor housing (511), the driving unit (512) is arranged on the motor housing (511) and is transmission-connected to the screw rod (513), one end of the sliding rod (514) is connected to the back of the flap assembly (52), and the other end is telescopically sleeved on the end of the screw rod (513) away from the driving unit (512), and a plurality of magnetic parts (516) are installed at different positions of the motor housing (511), and the Hall sensor (515) is arranged on the sliding rod (514) and can be inductively contacted with any of the magnetic parts (516).

10. A range hood according to any one of claims 1 to 8, characterized in that: A smoke leakage sensor (6) is provided at the bottom of the wind cabinet mechanism (2) and / or at the left and right side walls of the housing component (1).

11. A range hood according to any one of claims 1 to 8, characterized in that: It also comprises a cleaning mechanism, a water inlet interface (14) is provided at the bottom of the shell component (1), the cleaning mechanism is respectively arranged in the wind cabinet mechanism (2) and the shell component (1) and is connected to the water inlet interface (14) for cleaning the wind cabinet mechanism (2).

12. A control method for a range hood, characterized in that: A range hood according to any one of claims 1 to 11, wherein the control method comprises the following steps: S11, starting the oil absorption program and obtaining preset control information, wherein the preset control information includes the cook's personal information or the selected dish program; S12, determining a preset rotation speed of the wind cabinet mechanism (2) and a preset opening degree of the smoke collecting mechanism according to the preset control information; S13, obtaining and judging whether the concentration of the escaping oil smoke reaches the standard concentration value, if not, continue to execute this step, if yes, increase the rotation speed of the wind cabinet mechanism (2) and / or the opening of the smoke collection mechanism.

13. A control method for a range hood, characterized in that: A range hood according to any one of claims 1 to 11, wherein the range hood is provided with a cleaning mechanism for cleaning the wind cabinet mechanism (2), and the control method comprises the following steps: S21, starting the cleaning procedure, adjusting the smoke collecting mechanism to the minimum opening, and the air guide assembly (4) is synchronously flipped backward to the minimum angle under the drive of the smoke collecting mechanism; S22, control the cleaning mechanism to start working; S23, after cleaning is completed, close the cleaning mechanism and the smoke collecting mechanism.

Images