Air duct structure of integrated cooker

Abstract

The invention discloses an air duct structure of an integrated cooker. Relates to the technical field of integrated stoves. According to an existing integrated stove, fan suction force cannot be reasonably distributed according to the oil smoke amount on the two sides, and the smoke suction efficiency is low. The range hood comprises a smoke suction air bellow, a fan assembly, an air duct assembly and an air volume adjusting assembly, a partition plate is fixedly installed in the smoke suction air bellow and used for defining a ventilation cavity in the smoke suction air bellow, and two sets of oil smoke suction openings communicating with the ventilation cavity are formed in the front face of the smoke suction air bellow in a bilateral symmetry mode; the fan assembly is fixedly installed on the front face of the smoke suction air bellow and used for sucking the oil smoke from the oil smoke suction opening into the smoke exhaust pipe communicated with the bottom of the oil smoke suction opening, and the smoke exhaust pipe is used for being communicated with a public flue or outdoors. According to the technical scheme, the driving mechanism can be used for controlling the distribution assembly to convey the air output by the fan assembly to the air ducts on the two sides in an equally-divided or unequally-divided mode, the corresponding air volume is adjusted, the smoke suction efficiency is improved, and meanwhile energy waste is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated stoves, and specifically to an air duct structure of an integrated stove. Background Art

[0002] Integrated stoves are also known as environmental protection stoves or integrated environmental protection stoves in the industry. An integrated stove is a kitchen appliance that integrates multiple functions such as a range hood, a gas stove, a disinfection cabinet, and a storage cabinet. It has the advantages of saving space, good oil fume extraction effect, energy saving, low consumption, and environmental protection. An integrated stove mainly includes a body, a cooking range installed on the body, an oil fume extraction box located above the cooking range, a combustion system located below the cooking range, and components such as a fan assembly. The air duct inside the integrated stove is used to connect the oil fume extraction box and the fan assembly, etc.

[0003] In the existing integrated stove oil fume extraction structure, the air duct structure often evenly distributes the air volume delivered by the fan assembly to the oil fume extraction ports at the top during operation. However, in actual use of the integrated stove, only one side of the cooking range is often used, and there are often situations where one side is stir-frying and the other side is simmering slowly. The oil fume amounts corresponding to the oil fume extraction ports on both sides vary greatly, making it difficult to efficiently utilize the suction of the fan assembly. Moreover, most of the air ducts of integrated stoves are fixed structures, and it is difficult to optimize the suction according to the uneven oil fume on both sides, which is not conducive to improving the smoking efficiency of the device. Therefore, those skilled in the art have provided an air duct structure for an integrated stove to solve the problems raised in the above background art. Summary of the Invention

[0004] The purpose of the present invention is to provide an air duct structure for an integrated stove to solve the problem that the existing integrated stove is not convenient to reasonably distribute the fan suction according to the oil fume amounts on both sides, which will lead to low smoking efficiency or energy consumption waste of the device. Moreover, most of the air ducts of integrated stoves are fixed structures, and it is difficult to optimize the suction according to the uneven oil fume on both sides, which is not conducive to improving the smoking efficiency of the device.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An air duct structure for an integrated stove, comprising: An oil fume extraction box, inside which a partition plate is fixedly installed. The partition plate is used to enclose a ventilation cavity inside the oil fume extraction box. On the front of the oil fume extraction box, two groups of oil fume extraction ports communicating with the ventilation cavity are symmetrically arranged on the left and right. A fan assembly, which is fixedly installed on the front of the oil fume extraction box and is used to pump oil fume from the oil fume extraction ports to the exhaust pipe connected to its bottom. The exhaust pipe is used to communicate with a common flue or the outside. An air duct assembly, which is distributed in two groups on the left and right inside the partition plate. The air duct assembly sequentially includes a tapered section with a gradually decreasing cross-sectional area, an equal-width section with a constant cross-sectional area, and a tapered section with a gradually increasing cross-sectional area along the air flow direction from top to bottom. The air volume adjustment component is arranged inside the smoking air box and includes a distribution component rotatably connected to the partition plate and a driving mechanism for controlling the rotation of the distribution component. The distribution component is used to adjust the air volume sucked at the corresponding oil suction ports according to the oil fume amounts on both sides. When the driving mechanism controls the distribution component to increase or decrease the air volume in one side ventilation cavity, the driving mechanism controls the cross-section of the equal-width section on one side to expand or contract through a connecting piece.

[0006] Through the collaborative design of "dynamic air volume distribution + variable cross-section air duct + sealed linkage structure", this technical solution solves the problems of rigid air volume distribution and fixed and inefficient air ducts in traditional integrated stoves, achieving breakthroughs in terms of smoking efficiency, energy consumption control, noise optimization, and maintenance convenience. It is especially suitable for Chinese kitchens with large amounts of oil fume and variable cooking scenarios. Specifically, through the distribution component (such as the rotation of the diversion ring) of the air volume adjustment component, the air volume ratio of the two side ventilation cavities can be dynamically adjusted according to the actual oil fume amounts at the two oil suction ports (such as stir-frying on one side and different cooking intensities on both sides), avoiding the problems of "insufficient suction on the high-oil-fume side and waste of air volume on the low-oil-fume side" caused by traditional uniform distribution, and especially adapting to the stir-frying scenario in Chinese kitchens. When only using one side of the cooking appliance, all the air volume can be directed to the corresponding side to reduce ineffective energy consumption; when the difference in oil fume amounts on both sides is large, the suction on the high-oil-fume side is preferentially enhanced, reducing the overall energy consumption while maintaining the smoking effect. This technical solution adopts a linkage mechanism between air volume distribution and air duct shape. When the driving mechanism controls the distribution component to bias towards one side, not only the air volume on that side is increased, but also the cross-section of the equal-width section on that side is enlarged through a connecting piece to avoid an increase in turbulence under high air volume; at the same time, the other side with reduced air volume reduces the equal-width section to maintain the wind speed and prevent oil stain deposition. The tapered-equal-width-tapered structure itself can accelerate the air flow and restore the static pressure, and the adjustable size of the equal-width section further optimizes the effect: enhancing the negative pressure capture ability when shrinking and reducing the flow velocity and rebound when expanding. The traditional solution requires two fans to achieve air volume distribution, while this solution realizes "one adjustment and dual control" (damper angle + air duct size) through mechanical linkage, which not only reduces costs but also avoids the noise superposition of multiple fans.

[0007] Preferably: The partition plate includes a surrounding baffle fixedly installed inside the smoking air box and arranged around the outer circles of the two groups of oil suction ports. Multiple vertical plates fixedly installed inside the smoking air box and used to separate the two side ventilation cavities are attached to the surface of the surrounding baffle. The bottom ends of the vertical plates on both sides are welded with inclined baffles for connecting the distribution component. Two groups of fixing plates for supporting the connecting piece are fixedly installed on both sides inside the smoking air box, one above the other.

[0008] Preferably: The distribution component includes two groups of annular slide rails symmetrically installed before and after inside the smoking air box. The two sides of the two groups of annular slide rails are fixedly connected to the bottom ends of the inclined baffles. The tops of the annular slide rails are fixedly connected to the bottom ends of the two groups of vertical plates located in the middle. A diversion ring with an open top is slidably installed inside the two groups of annular slide rails. A driving tooth connected to the driving mechanism is welded to the outer circle of the diversion ring.

[0009] Preferably, the driving mechanism includes two sets of sliding rods fixedly installed inside the smoking air box. A moving frame is slidably installed on the surfaces of the two sets of sliding rods. A rack meshing with the driving gear is fixedly installed on the top of the moving frame. A hydraulic rod is fixedly installed at the bottom of the smoking air box, and the output end of the hydraulic rod is detachably connected to the bottom of the moving frame.

[0010] Preferably, the air duct assembly includes two first guide plates with gradually approaching bottoms forming a tapered section, two second guide plates arranged vertically and parallel to form an equal-width section, and two third guide plates with gradually separating bottoms forming a tapered expansion section. The top and bottom of the second guide plates are respectively hinged to the first guide plates and the third guide plates. The top of the first guide plate is attached to the surface of the vertical plate and rotatably connected to the inner wall of the smoking air box. The bottom of the third guide plate is attached to the surface of the vertical plate. An auxiliary member for controlling the symmetrical folding up and down of the two is provided between the first guide plate and the third guide plate.

[0011] Preferably, a first sealing strip is adhesively bonded between the bottom end of the first guide plate and the surface of the second guide plate, and a second sealing strip is adhesively bonded between the top end of the third guide plate and the surface of the second guide plate.

[0012] Preferably, the auxiliary member includes two sets of parallel slide rails fixedly installed on the opposite side surfaces of the first guide plate and the third guide plate. An auxiliary plate parallel to the second guide plate is slidably installed between the upper and lower two sets of parallel slide rails. An auxiliary rod slidably penetrating the auxiliary plate is fixedly installed at the center of the second guide plate.

[0013] Preferably, the connecting member includes two sets of support rods fixedly installed between two sets of fixing plates on the same side. An I-shaped bracket is slidably installed on the surfaces of the two sets of support rods. The I-shaped bracket slidably penetrates the top fixing plate. The bottom end of the I-shaped bracket is connected to the side surface of the moving frame through a hinged connecting rod. Two sets of rod members slidably penetrating one side vertical plate and two sets of second guide plates are detachably installed at the top end of the I-shaped bracket. A chute for the up and down movement of the rod members is provided inside the side vertical plate.

[0014] Preferably, PM2.5 sensors are detachably installed on both sides of the baffle, and the PM2.5 sensors are used to detect the oil fume concentration at the corresponding oil fume suction ports.

[0015] Preferably, the tops of multiple sets of the vertical plates extending into the baffle are inclined. A set of metal filters are placed on the tops of the two vertical plates in each oil fume suction port. A magnetic strip for adsorbing and fixing the metal filter is fixedly installed on the inclined top of the vertical plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: By setting up structures such as partition plates and distribution components, symmetrical air ducts are separated inside the smoking bellows. The driving mechanism is used to control the distribution components to evenly or unevenly deliver the air volume output by the fan component to the air ducts on both sides. The oil fume extraction structure can adjust the corresponding air volume according to the different amounts of oil fume on both sides during the actual use of the integrated stove, or when using a single-side stove on the integrated stove, all the oil fume extraction air volume can be adjusted to the corresponding side, which can effectively avoid waste of air volume and reduce unnecessary energy consumption, etc., which is beneficial to improving the actual oil fume extraction rate of the device, and the automatic air volume adjustment of the integrated stove can make it more suitable for Chinese kitchens.

[0017] Inside the air cavity on each side, there is an air duct component with a "wide-narrow-wide" structure distribution from top to bottom in cross-section. The wind force can accelerate in the narrow section. The contraction-expansion structure can guide the air flow to form a laminar flow state, avoiding the common eddy currents (such as the backflow of oil fume at the edge) in traditional straight-through flues, so as to facilitate the efficient capture of initially diffused oil fume, prevent a large amount of oil fume from escaping. At the same time, the air duct component can also effectively balance the wind pressure and reduce noise, and the air duct component can follow the adjustment of the air volume inside the air duct to achieve an optimized adjustment of the cross-sectional size. When the air volume is high, the air duct of the air duct component widens, which can reduce the wind speed and turbulent resistance, and avoid the rebound of oil fume caused by too high wind speed. When the air volume is low, the air duct of the air duct component narrows, which can maintain the basic wind speed and prevent the deposition of oil stains caused by air flow stagnation. The dynamic air duct optimization can achieve certain breakthroughs in multiple aspects such as oil fume extraction efficiency, energy consumption, noise, and maintenance cost. Description of the Drawings

[0018] Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 Exploded schematic diagram of the metal filter structure of the present invention; Figure 3 First cross-sectional view of the overall structure of the present invention; Figure 4 Second cross-sectional view of the overall structure of the present invention; Figure 5 Schematic diagram of the internal structure of the smoking bellows of the present invention; Figure 6 Schematic diagram of the structures of the partition plate, distribution component, driving mechanism and connecting piece of the present invention; Figure 7 Schematic diagram of the structure of the single-side air duct component of the present invention; Figure 8 Top view of the overall structure of the present invention.

[0019] Legend Explanation: 10. Smoking bellows; 11. Oil suction port; 12. Fan assembly; 13. Exhaust pipe; 14. First sealing strip; 15. Second sealing strip; 16. Slide groove; 17. PM2.5 sensor; 18. Metal filter; 19. Magnetic strip; 20. Partition board; 201. Baffle; 202. Vertical board; 203. Inclined baffle; 204. Fixed board; 30. Air duct assembly; 301. First deflector; 302. Second deflector; 303. Third deflector; 304. Auxiliary part; 3041. Parallel slide rail; 3042. Auxiliary board; 3043. Auxiliary rod; 40. Air volume distribution assembly; 401. Distribution assembly; 4011. Annular slide rail; 4012. Deflection ring; 4013. Driving gear; 402. Driving mechanism; 4021. Slide bar; 4022. Moving frame; 4023. Rack; 4024. Hydraulic rod; 50. Connector; 501. Support rod; 502. I-shaped bracket; 503. Connecting rod; 504. Frame rod. Detailed implementation manner

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1 to 8 , in the embodiment of the present invention, an integrated stove air duct structure includes a smoking bellows 10, a fan assembly 12, an air duct assembly 30 and an air volume distribution assembly 40. A partition board 20 is fixedly installed inside the smoking bellows 10. The partition board 20 is used to enclose a ventilation cavity inside the smoking bellows 10. Two groups of oil suction ports 11 communicating with the ventilation cavity are symmetrically arranged on the front of the smoking bellows 10. The fan assembly 12 is fixedly installed on the front of the smoking bellows 10 and is used to pump the oil fume from the oil suction port 11 to the exhaust pipe 13 connected to its bottom. The exhaust pipe 13 is used to communicate with the public flue or the outside.

[0022] The smoking bellows 10 and the fan assembly 12 are assembled and used with components such as the cabinet body and the stove of the integrated stove. The two groups of oil suction ports 11 are used for corresponding to the two stoves of the integrated stove. The exhaust pipe 13 installed inside the integrated stove cabinet is used to connect to a telescopic air duct, etc. When the device is actually used, the fan assembly 12 is started. The fan assembly 12 can pump the oil fume generated during the use of the stove from the oil suction port 11 to the ventilation cavity of the smoking bellows 10. The oil fume in the ventilation cavity can be pumped by the fan assembly 12 to the exhaust pipe 13 and finally discharged to the outside.

[0023] Among them, two groups of air duct components 30 are distributed on the left and right inside the partition plate 20. The air duct components 30 sequentially include a tapered section with a gradually decreasing cross-sectional area, an equal-width section with a constant cross-sectional area, and a diffuser section with a gradually increasing cross-sectional area along the air flow direction. The air volume distribution component 40 is arranged in the smoke extraction air box 10 and includes a distribution component 401 rotatably connected to the partition plate 20 and a driving mechanism 402 for controlling the rotation of the distribution component 401. The distribution component 401 is used to adjust the air volume sucked at the corresponding oil smoke suction port 11 according to the oil smoke amounts on both sides. When the driving mechanism 402 controls the distribution component 401 to increase or decrease the air volume in one side ventilation cavity, the driving mechanism 402 controls the cross-section of one side equal-width section to expand or contract through the connecting piece 50.

[0024] The operation of the driving mechanism 402 can be controlled according to the oil smoke amounts on both sides during the actual use of the integrated stove. The driving mechanism 402 can control the distribution component 401 to rotate at the bottom end of the partition plate 20. The open mouth at the top of the distribution component 401 can distribute the air volume generated by the fan component 12 into the air duct components 30 on both sides. The distribution component 401 can distribute most of the air volume into the air duct component 30 corresponding to the larger oil smoke amount, which can effectively solve the problem of waste of air volume on the low oil smoke side and insufficient suction on the high oil smoke side of the integrated stove, making the air duct structure of the integrated stove particularly suitable for Chinese kitchens that focus on stir-frying. At the same time, there are two groups of air duct components 30 on the left and right in the ventilation cavity of the smoke extraction air box 10, and the air duct component 30 with a "wide-narrow-wide" cross-sectional structure distribution can be used to further improve the oil smoke extraction efficiency of the device. The equal-width section of the air duct component 30 can generate the Venturi effect by reducing the ventilation cross-sectional area. The air flow speed increases significantly in the equal-width section, and a strong negative pressure area can be formed near the fan, so that oil smoke can be captured more efficiently. After the cross-sectional area is enlarged at the top of the equal-width section, the wind speed can be reduced, the static pressure is restored, the air flow turbulence can be reduced, and the oil smoke can enter the flue more smoothly, avoiding rebound or noise caused by too high wind speed.

[0025] Furthermore, the structure of the air duct component 30 can cooperate with the distribution component 401 to adjust the air volume in the air cavities on both sides to adjust its cross-section. When the air volume in the air duct component 30 is high, the air duct widens to reduce the wind speed and turbulent resistance, thus avoiding oil smoke rebound caused by too high wind speed. When the air volume in the air duct component 30 is low, the air duct narrows to maintain the basic wind speed, thus preventing oil stain deposition caused by air flow stagnation. The dynamic air duct in the smoke extraction air box 10 optimizes the air flow efficiency and can significantly improve the oil smoke extraction effect of the device.

[0026] Correspondingly, the partition plate 20 includes a surrounding baffle 201 fixedly installed in the inner cavity of the smoking air box 10 and arranged around the outer circles of the two groups of oil suction ports 11. A plurality of vertical plates 202 fixedly installed in the inner cavity of the smoking air box 10 and used for separating the ventilation cavities on both sides are attached to the surface of the surrounding baffle 201. Oblique baffles 203 for connecting the distribution assembly 401 are welded to the bottoms of the vertical plates 202 on both sides. Two upper and lower fixing plates 204 for supporting the connecting member 50 are fixedly installed on both sides of the inner cavity of the smoking air box 10. The surrounding baffle 201, the vertical plates 202 and the oblique baffles 203 can enclose a ventilation cavity communicating the oil suction ports 11 and the fan assembly 12 inside the smoking air box 10, and the components can be directly welded together. The components and the smoking air box 10 can be detachably connected by screws, etc., so as to facilitate subsequent maintenance and repair of the equipment interior.

[0027] In one embodiment, referring to Figures 2 to 6 , specifically, the distribution assembly 401 includes two annular slide rails 4011 symmetrically installed before and after in the inner cavity of the smoking air box 10. The two sides of the two annular slide rails 4011 are fixedly connected to the bottom end of the oblique baffle 203. The top of the annular slide rail 4011 is fixedly connected to the bottom ends of the two vertical plates 202 located in the middle. A flow guiding ring 4012 with an open top is slidably installed inside the two annular slide rails 4011. A driving tooth 4013 connected to the driving mechanism 402 is welded to the outer ring of the flow guiding ring 4012. Among them, the driving mechanism 402 includes two slide rods 4021 fixedly installed inside the smoking air box 10. A moving frame 4022 is slidably installed on the surfaces of the two slide rods 4021. A rack 4023 meshing with the driving tooth 4013 is fixedly installed at the top of the moving frame 4022. A hydraulic rod 4024 is fixedly installed at the bottom of the smoking air box 10. The output end of the hydraulic rod 4024 is detachably connected to the bottom of the moving frame 4022.

[0028] When it is necessary to adjust the air volume of the left and right air cavities in the smoking air box 10, starting the hydraulic rod 4024 can drive the moving frame 4022 to slide left and right on the surface of the slide rod 4021. The moving frame 4022 can drive the flow guiding ring 4012 to rotate inside the annular slide rail 4011 through the rack 4023 and the driving tooth 4013. A sealed rotational connection can be adopted between the flow guiding ring 4012 and the annular slide rail 4011 to prevent the internal air flow of the air cavity from overflowing. When the open top of the flow guiding ring 4012 deflects towards one side of the air cavity, the air volume inside one side of the air cavity can be increased, and the air volume inside the other side of the air cavity can be reduced, so as to facilitate the air volume distribution according to the amount of oil fume corresponding to the oil suction port 11 and effectively improve the smoking efficiency of the equipment.

[0029] On the basis of the above embodiment, referring to Figures 2 to 7, Specifically, the air duct assembly 30 includes two groups of first guide plates 301 with gradually decreasing bottoms that form a tapered section, two groups of second guide plates 302 arranged vertically and parallel to each other that form an equal-width section, and two groups of third guide plates 303 with gradually separating bottoms that form a tapered expansion section. The top and bottom of the second guide plates 302 are respectively hinged to the first guide plates 301 and the third guide plates 303. The top of the first guide plates 301 is attached to the surface of the vertical plate 202 and is rotatably connected to the inner wall of the smoking air box 10. The bottom of the third guide plates 303 is attached to the surface of the vertical plate 202. An auxiliary member 304 for controlling the symmetric folding up and down of the two is provided between the first guide plates 301 and the third guide plates 303.

[0030] The first guide plates 301 and the third guide plates 303 that abut against the surface of the vertical plate 202 cooperate with the second guide plates 302 to be able to enclose an air flow channel with a Venturi effect inside one side of the ventilation cavity. The distance between the two groups of second guide plates 302 can be reduced and expanded according to the adjustment of the air volume of the distribution component 401, which can further optimize the actual smoking efficiency of the device, etc. When the driving mechanism 402 controls the rotation and adjustment of the distribution component 401, it can adjust the positions of the two groups of second guide plates 302 through the connecting member 50. When the second guide plates 302 move, they can synchronously drive the adjustment of the first guide plates 301 and the third guide plates 303, so that the air flow channel can always be kept stable. At the same time, the provided air duct assembly 30 limits the flow space of the air flow inside the air cavity, which is also beneficial to the energy conservation, consumption reduction and noise reduction of the device.

[0031] A first sealing strip 14 is adhesively bonded between the bottom of the first guide plate 301 and the surface of the second guide plate 302, and a second sealing strip 15 is adhesively bonded between the top of the third guide plate 303 and the surface of the second guide plate 302. The rotational connection between the guide plates can be achieved by means of hinges, etc. Among them, the first sealing strip 14 and the second sealing strip 15 can be made of rubber with good elasticity or memory metal with good bendability, etc., which can improve the sealing performance at the rotational connection of the components. The two sides of the first guide plate 301, the second guide plate 302 and the third guide plate 303 that are close to the inner wall of the smoking air box 10 can be adhesively bonded with corresponding sealing strips, etc., which is convenient for improving the sealing performance of the air duct, etc. And the guide plates and the sealing strips can be coated with non-stick coatings, etc. on the inner side of the air duct to reduce the adhesion of oil stains inside the air duct.

[0032] Correspondingly, the connecting member 50 includes two groups of support rods 501 fixedly installed between two groups of fixed plates 204 on the same side. An I-shaped bracket 502 is slidably installed on the surfaces of the two groups of support rods 501. The I-shaped bracket 502 slidably penetrates through the top fixed plate 204. The bottom end of the I-shaped bracket 502 is connected to the side surface of the moving frame 4022 through a hinged connecting rod 503. Two groups of rod members 504 that slidably penetrate through one side vertical plate 202 and two groups of second guide plates 302 are detachably installed at the top end of the I-shaped bracket 502. A chute 16 for the up-and-down movement of the rod member 504 is provided inside the side vertical plate 202.

[0033] When the rotation of the flow guiding ring 4012 is controlled by the movement of the moving frame 4022, when the moving frame 4022 slides left and right, it can drive one of the two groups of I-shaped brackets 502 to rise and the other to fall through the two side connecting rods 503 respectively. The support rod 501 can provide a stable support slideway for the up-and-down movement of the I-shaped bracket 502. The up-and-down movement of the I-shaped bracket 502 can drive the rod member 504 connected thereto to slide up and down inside the chute 16.

[0034] When the rod member 504 moves up and down, it can drive the two groups of second guide plates 302 slidably connected to its surface to move up and down. Since the second guide plate 302 is restricted by the bottom end of the first guide plate 301 that can only rotate, it is possible to adjust the distance between the two when the rod member 504 drives the two groups of second guide plates 302 to move up and down. The third guide plate 303 is connected to the first guide plate 301 through an auxiliary member 304. When the second guide plate 302 drives the first guide plate 301 to rotate, the third guide plate 303 can always be turned up and down symmetrically with the first guide plate 301, thereby ensuring the airtightness of the air duct.

[0035] When the driving mechanism 402 synchronously controls the adjustment of the distribution assembly 401 and the air duct assembly 30, the opening of the flow guiding ring 4012 faces one side of the air duct. The air volume in the above air duct increases and the distance between the two groups of second guide plates 302 inside it increases. When the air volume in the other air duct decreases, the distance between the two groups of second guide plates 302 inside it decreases. The physical air duct adaptsively deforms to replace a complex multi-fan system, achieving multi-dimensional breakthroughs in the oil fume extraction efficiency, energy consumption, noise, maintenance cost, etc. of the integrated stove. The air duct structure of the integrated stove with adaptive deformation is especially suitable for the variable cooking needs of Chinese kitchens.

[0036] Among them, the auxiliary part 304 includes two groups of parallel slide rails 3041 fixedly installed on the opposite side surfaces of the first deflector 301 and the third deflector 303. An auxiliary plate 3042 parallel to the second deflector 302 is slidably installed between the upper and lower two groups of parallel slide rails 3041. An auxiliary rod 3043 that slidably penetrates the auxiliary plate 3042 is fixedly installed at the center of the second deflector 302. When the second deflector 302 moves following the support rod 504, it can drive the auxiliary rod 3043 to displace together. The auxiliary plate 3042 that can slide left and right on the surface of the auxiliary rod 3043 can also slide in the upper and lower two groups of parallel slide rails 3041, which can make the third deflector 303 and the first deflector 301 always maintain vertical symmetry, so as to realize that the bottom end of the third deflector 303 always fits the side surface of the vertical plate 202. The stability of the overall movement of the component is strong, and the actual adjustment accuracy is also relatively high.

[0037] In one embodiment, refer to Figures 1 to 4 , PM2.5 sensors 17 can be detachably installed on both sides of the baffle 201. Laser scattering type PM2.5 sensors 17 can be used, such as models PMS5003 / PMS7003, etc., or infrared PM2.5 sensors 17 can also be used, such as models GP2Y1010AU0F, PMS3003, etc. The PM2.5 sensors 17 are used to detect the oil fume concentration at the corresponding oil fume suction ports 11. The PM2.5 sensors 17 on the left and right sides respectively monitor the oil fume concentration in the corresponding areas (for example, when stir-frying on the left side or using it alone, the value of the left sensor suddenly rises). The sensors can convert the analog signal into a digital signal and transmit it to the main control chip. When the difference between the detection values of the two PM2.5 sensors 17 exceeds a certain proportion of the baseline, the actual difference in oil fume on both sides is determined, and the drive mechanism 402 is activated to respond. The distribution component 401 is used to increase the wind force on the side with a large amount of oil fume or transfer all the wind force to the side of the stove used alone. The air volume allocation is automated, which is beneficial to improving the intelligent degree of the actual use of the integrated stove.

[0038] The tops of multiple groups of vertical plates 202 extending into the baffle 201 are inclined. A group of metal filters 18 are placed on the tops of the two vertical plates 202 in each oil fume suction port 11. A magnetic strip 19 for adsorbing and fixing the metal filter 18 is fixedly installed on the inclined top of the vertical plate 202. The metal filter 18 can be used to initially collect the oil stains in the oil fume and reduce the pollution of the internal structure of the air duct by the oil stains. The provided magnetic strip 19 facilitates the quick installation and disassembly of the metal filter 18, which is beneficial for the subsequent cleaning by the user.

[0039] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An integrated stove air duct structure, characterized in that, Comprising: A smoking bellows (10), inside which a partition plate (20) is fixedly installed. The partition plate (20) is used to enclose a ventilation cavity inside the smoking bellows (10). On the front of the smoking bellows (10), two groups of oil suction ports (11) communicating with the ventilation cavity are symmetrically arranged on the left and right; A fan assembly (12), which is fixedly installed on the front of the smoking bellows (10) and is used to suck oil fume from the oil suction ports (11) to the exhaust pipe (13) connected to its bottom. The exhaust pipe (13) is used to communicate with a common flue or the outside; An air duct assembly (30), which is distributed in two groups on the left and right inside the partition plate (20). The air duct assembly (30) successively includes a tapered section with a gradually decreasing cross-sectional area, an equal-width section with a constant cross-sectional area, and a tapered section with a gradually increasing cross-sectional area along the air flow direction from top to bottom; An air volume distribution and adjustment assembly (40), which is arranged inside the smoking bellows (10) and includes a distribution assembly (401) rotatably connected to the partition plate (20) and a driving mechanism (402) for controlling the rotation of the distribution assembly (401). The distribution assembly (401) is used to adjust the air suction volume at the corresponding oil suction ports (11) according to the oil fume volume on both sides. When the driving mechanism (402) controls the distribution assembly (401) to increase or decrease the air volume in one side ventilation cavity, the driving mechanism (402) controls the cross-section of one side equal-width section to expand or contract through a connecting piece (50).

2. The integrated cooking range air duct structure according to claim 1, wherein: The partition plate (20) includes a baffle (201) fixedly installed in the inner cavity of the smoking bellows (10) and arranged around the outer circle of the two groups of oil suction ports (11). The surface of the baffle (201) is fitted with a plurality of vertical plates (202) fixedly installed in the inner cavity of the smoking bellows (10) and used to separate the ventilation cavities on both sides. The bottom ends of the vertical plates (202) on both sides are welded with an inclined baffle (203) for connecting the distribution assembly (401). On both sides of the inner cavity of the smoking bellows (10), two upper and lower fixing plates (204) for supporting the connecting piece (50) are fixedly installed.

3. The integrated range hood air duct structure according to claim 2, characterized in that: The distribution assembly (401) includes two groups of annular sliding rails (4011) symmetrically installed in the front and back of the inner cavity of the smoking bellows (10). The two sides of the two groups of annular sliding rails (4011) are fixedly connected to the bottom ends of the inclined baffle (203). The top of the annular sliding rails (4011) is fixedly connected to the bottom ends of the two middle vertical plates (202). Inside the two groups of annular sliding rails (4011), a diversion ring (4012) with an open top is slidably installed. The outer circle of the diversion ring (4012) is welded with a driving tooth (4013) connected to the driving mechanism (402).

4. The integrated range hood air duct structure according to claim 3, wherein: The driving mechanism (402) includes two groups of sliding rods (4021) fixedly installed inside the smoking air box (10). A moving frame (4022) is slidably installed on the surfaces of the two groups of sliding rods (4021). A rack (4023) engaged with the driving gear (4013) is fixedly installed at the top of the moving frame (4022). A hydraulic rod (4024) is fixedly installed at the bottom of the smoking air box (10). The output end of the hydraulic rod (4024) is detachably connected to the bottom of the moving frame (4022).

5. The integrated range hood air duct structure according to claim 4, characterized in that: The air duct assembly (30) includes two first guide plates (301) with gradually decreasing bottom ends that form a tapered section, two second guide plates (302) arranged vertically and parallel to each other that form an equal-width section, and two third guide plates (303) with gradually separating bottom ends that form a tapered expansion section. The top and bottom ends of the second guide plates (302) are respectively hinged to the first guide plates (301) and the third guide plates (303). The top end of the first guide plate (301) is in contact with the surface of the vertical plate (202) and is rotatably connected to the inner wall of the smoking air box (10). The bottom end of the third guide plate (303) is in contact with the surface of the vertical plate (202). An auxiliary member (304) for controlling the symmetrical folding up and down of the first guide plate (301) and the third guide plate (303) is provided between the first guide plate (301) and the third guide plate (303).

6. The integrated range hood air duct structure according to claim 5, characterized in that: A first sealing strip (14) is adhesively bonded between the bottom end of the first guide plate (301) and the surface of the second guide plate (302). A second sealing strip (15) is adhesively bonded between the top end of the third guide plate (303) and the surface of the second guide plate (302).

7. An integrated stove air duct structure according to claim 6, characterized in that: The auxiliary member (304) includes two groups of parallel slide rails (3041) fixedly installed on the opposite side surfaces of the first guide plate (301) and the third guide plate (303). An auxiliary plate (3042) parallel to the second guide plate (302) is slidably installed between the upper and lower two groups of parallel slide rails (3041). An auxiliary rod (3043) that slidably penetrates the auxiliary plate (3042) is fixedly installed at the center of the second guide plate (302).

8. The integrated stove air duct structure according to claim 7, characterized in that: The connecting member (50) includes two groups of support rods (501) fixedly installed between two groups of fixing plates (204) on the same side. An I-shaped bracket (502) is slidably installed on the surfaces of the two groups of support rods (501). The I-shaped bracket (502) slidably penetrates the top fixing plate (204). The bottom end of the I-shaped bracket (502) is connected to the side surface of the moving frame (4022) through a hinged connecting rod (503). Two sets of rod members (504) that slidably penetrate one side vertical plate (202) and two second guide plates (302) are detachably installed at the top end of the I-shaped bracket (502). A chute (16) for the up and down movement of the rod member (504) is provided inside the side vertical plate (202).

9. An integrated cooking range air duct structure according to any one of claims 2-8, characterized in that: PM2.5 sensors (17) are detachably installed on both sides of the baffle (201). The PM2.5 sensors (17) are used to detect the oil fume concentration at the corresponding oil fume suction port (11).

10. The integrated stove air duct structure according to claim 9, characterized in that: The tops of multiple groups of the vertical plates (202) extending into the baffle (201) are inclined. A group of metal filters (18) are placed on the tops of the two vertical plates (202) in each oil suction port (11). A magnetic strip (19) for adsorbing and fixing the metal filter (18) is fixedly installed on the inclined top of the vertical plate (202).

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