Assembly structure and assembly method of integrated cooker oil fume treatment system

Abstract

The application discloses an assembly structure and an assembly method of an integrated cooker oil fume treatment system, which comprises a cabinet body, an air inlet air duct unit, a fan unit, an air outlet air duct unit and an oil collecting groove unit; the fan unit is arranged on the lower side of the air inlet air duct unit and located on one side of the air outlet air duct unit; the end of the volute is inserted into the connecting port of the air outlet air duct unit, and the air inlet port is connected with the air duct outlet; the body of the motor of the fan unit is fixed to the end cover, the output shaft is located on the inner side of the end cover and detachably connected with the bracket of the impeller; the impeller is installed into the volute from the mounting port, and the end cover is detachably connected to the lower side of the volute through the first connecting assembly and closes the mounting port; the fan unit is independently arranged on the lower side, and the motor and the end cover can be removed from the lower side by removing the connection of the first connecting assembly, so that the motor is convenient to detect, maintain and replace; when the integrated cooker is used by the user, the integrated cooker is convenient to clean in depth, and the motor is prevented from being damaged.

Description

Technical Field

[0001] This invention relates to the field of integrated stove technology, and more particularly to an assembly structure and assembly method for an integrated stove fume treatment system. Background Technology

[0002] An integrated cooktop is a kitchen appliance that combines multiple functions such as a range hood, gas stove, disinfection cabinet, and storage cabinet. It is also known in the industry as an eco-friendly cooktop or integrated eco-friendly cooktop. Integrated cooktops utilize micro-aerodynamics principles, employing a downdraft or side-suction downdraft design. The downdraft creates a negative pressure zone, drawing cooking fumes downwards.

[0003] Therefore, the integrated stove cabinet contains an oil fume treatment system consisting of an air duct unit, a fan unit, and an oil collection unit. Since the integrated stove cabinet also houses functional components such as a disinfection cabinet, storage cabinet, and dishwasher, space constraints and interference between the positions of these components mean that, generally speaking, the air duct unit and fan unit are fixed and non-removable, while the oil collection unit can be disassembled or pulled out for cleaning.

[0004] Patent application number 202211227647.9 discloses a novel air duct system and an integrated stove. The novel air duct system has an "L"-shaped cross-section. The upper opening of the "L"-shaped air duct is used to connect to the head of the integrated stove. The top opening of the "L"-shaped protrusion is used to horizontally place the fan unit system, and the outlet of the fan unit system coincides with the outlet of the air duct. A hinge shaft is provided on one side of the top opening for connecting a cover plate. Magnetic strips are installed around the top opening to attract the cover plate and ensure the airtightness when the cover plate is closed. The fan unit system is installed through the top opening.

[0005] Patent application number 202222540038.0 discloses an integrated stove air duct system and an integrated stove having the same. The air box assembly includes an air box and a fan unit disposed within the air box. The air box has an air box inlet located at its rear and an air box air duct outlet located at its side. The air duct assembly also includes an air duct inlet and an air duct outlet. The air box assembly is detachably connected to the air duct assembly. The air box assembly has a first connection position and a second connection position relative to the air duct assembly. In the first connection position, the air box air duct outlet of the air box assembly faces to the left and the air box inlet is connected to the air duct outlet. In the second connection position, the air box air duct outlet of the air box assembly faces to the right and the air box inlet is connected to the air duct outlet.

[0006] In the integrated cooktops described in the aforementioned patents, the fan unit is enclosed within an air duct or air box. This means that without removing the functional components and opening the air duct or air box, it is impossible to remove the fan unit for repair or replacement, or to clean the impeller or volute of the fan unit. Ultimately, this makes the integrated cooktop difficult to repair and hard to clean thoroughly. Summary of the Invention

[0007] In view of the above-mentioned shortcomings in the prior art, the technical problem to be solved by the present invention is to provide an assembly structure and assembly method for an integrated stove fume treatment system that is easier to install, maintain and clean.

[0008] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: the assembly structure of the integrated stove fume treatment system, including a cabinet, an air inlet duct unit, a fan unit, an air outlet duct unit and an oil collection tank unit; The air inlet duct unit is fixed inside the cabinet and connects to the smoke collection chamber on the upper side of the cabinet. The bottom plate of the air inlet duct unit is provided with an air duct outlet. The exhaust duct unit is fixed to the bottom plate of the inlet duct unit, and the exhaust duct unit extends to the side plate of the cabinet to form a smoke exhaust interface; one side plate of the exhaust duct unit is provided with a connection port, and the bottom plate of the exhaust duct unit is provided with an oil outlet. The oil collection tank unit is removably installed inside the cabinet and is connected to the oil outlet of the air outlet duct unit. The fan unit is located below the air inlet duct unit and on the side where the air outlet duct unit is connected. The fan unit includes a volute, an impeller, a motor, and an end cover; The impeller includes a wheel body and a support fixed in the middle of the wheel body; The motor includes a body and an output shaft. The body is fixed to the end cover, and the output shaft is located inside the end cover and is detachably connected to the impeller bracket. The upper side of the volute is provided with an air inlet, and the lower side of the volute is provided with an installation port extending into the volute. The impeller is installed into the volute through the mounting port, and the end cover is fixed to the lower side of the volute through the first connecting component and closes the mounting port. The first connecting component passes through the end cap and the volute bottom plate from bottom to top for fixed connection and can be disassembled from the bottom side of the end cap to disconnect the connection; The fan unit is located below the air inlet duct unit and on one side of the air outlet duct unit. The end of the volute is inserted into the connection port of the air outlet duct unit, and the air inlet is connected to the air outlet.

[0009] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the fan unit and the air inlet duct unit are connected by a second connecting component; The second connecting component passes through the bottom plate of the volute, the front plate of the volute, and the bottom plate of the air inlet duct unit from bottom to top for fixed connection.

[0010] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the second connecting component passes through the end cover, the volute bottom plate, the volute panel and the bottom plate of the air inlet duct unit from bottom to top for fixed connection and can be disassembled from the bottom side of the end cover to disconnect the connection.

[0011] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the air inlet duct unit includes a first duct component and a second duct component; The first air duct component is vertically arranged and has a vertically penetrating first channel; The second air duct component includes a vertical section and a horizontal section that pass through to form a second channel, and the bottom plate of the horizontal section is provided with an air duct outlet; The first air duct component is inserted into the vertical section of the second air duct component, and the first channel and the second channel are connected.

[0012] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problem is: the vertical segment and the horizontal segment are connected by an arc portion that bends from top to bottom toward the horizontal segment; The end of the first air duct component extends beyond the lower surface of the panel of the transverse section; The outer wall of the first air duct component is tightly attached to the inner surface of the vertical section and connected by screws; The peripheral plate of the transverse section includes two parallel straight plates, an inwardly inclined plate, and a connecting plate between the two inclined plates; the inclined plate and the connecting plate form an obtuse angle, and the inclined plate and the straight plate form an obtuse angle.

[0013] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the bottom of the cabinet is provided with a detachable cabinet bottom plate. After the oil collection tank unit and the cabinet bottom plate are removed, the fan unit is exposed from the bottom of the cabinet and forms an operation window. The first connecting component can be disconnected through the operation window, and the end cap and motor can be removed from the cabinet simultaneously through the operation window at the connection port between the output shaft and the bracket.

[0014] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the air outlet duct unit includes a bidirectional air duct, the bidirectional air duct extends to both sides of the cabinet and respectively forms a smoke exhaust interface; The air outlet duct unit is located on the rear side of the cabinet, and the fan unit is located on the front side of the cabinet; The connection port of the air outlet duct unit is located on the front side of the air outlet duct unit, and the volute of the fan unit is inserted into the connection port.

[0015] The preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the air outlet duct unit includes a commutator disposed in the bidirectional duct, which is pivotally connected to the bottom wall of the air outlet duct unit through a rotating shaft, and the commutator rotates around the rotating shaft to switch between a first state and a second state. The rotating shaft passes through the bottom wall of the air outlet duct unit and is restricted from rotating after the state is switched. The commutator includes a curved baffle with the same width as the inner width of the air outlet duct; In the first state, the curved baffle is located to the left of the connection port and blocks the left air outlet of the bidirectional air duct; In the second state, the curved baffle is located on the right side of the connection port and isolates the right air outlet of the bidirectional air duct.

[0016] Another technical solution adopted by the present invention to solve the above-mentioned technical problem is: an assembly method for an integrated stove fume treatment system, comprising the following steps: Step 1: Prepare the fan unit; The end cap is fixed to the motor body, and the output shaft of the motor is perpendicular to the end cap; The motor is installed into the impeller, and the output shaft is connected to the bracket in the middle of the impeller body to form a fan core fixed on the end cover. Insert the fan core, which is fixed to the end cover, into the volute housing from the mounting opening on the side of the volute housing with the end cover facing outwards and the impeller facing inwards. The end cap is placed tightly against the bottom wall of the volute and covers the mounting port. The first connecting component passes through the end cap and the bottom plate of the volute in sequence to connect the end cap and the volute, so as to install the fan core into the volute. Step 2: Fabrication of the integrated air duct module; The air outlet duct unit is fixed to the base plate of the air inlet duct unit with the connection port for connecting to the air outlet end of the fan unit facing forward. The front side of the air outlet duct unit forms an installation position for installing the fan unit located in the air inlet duct unit. The bottom plate of the air inlet duct unit at the installation position is provided with an air outlet that connects to the air inlet end of the fan unit. The fan unit prepared in step one is assembled into the mounting position with the volute horizontally placed, the end cap facing down, and the air inlet of the volute facing upward. The end of the volute is inserted into the connection port, and the air inlet of the volute is connected to the air duct outlet. The second connecting component passes through the end cover, the bottom plate of the volute, the front plate of the volute, and the bottom plate of the air inlet duct unit from bottom to top to connect the fan unit to the air inlet duct unit. The air inlet duct unit, the air outlet duct unit, and the fan unit form an integrated air duct module. Step 3: Assemble the air duct integration module into the cabinet; The air duct integration module is assembled into the cabinet of the integrated stove with the air inlet duct unit on top and the air outlet duct unit at the rear. The upper end of the air inlet duct unit is connected to the smoke collection chamber on the upper side of the cabinet.

[0017] Another preferred technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: the air inlet duct unit includes a first duct component and a second duct component; the first duct component is vertically arranged and has a vertically penetrating first channel; the second duct component includes a vertical section and a horizontal section that penetrate to form a second channel, and the bottom plate of the horizontal section is provided with an air duct outlet; The first air duct component is inserted into the vertical section of the second air duct component; the end of the first air duct component extends beyond the lower surface of the panel of the horizontal section or is flush with the lower surface of the panel of the horizontal section; the outer wall of the first air duct component is tightly attached to the inner surface of the vertical section and connected with screws.

[0018] Compared with the prior art, the advantages of the present invention are: First, the fan unit is independently located on the lower side, and by disconnecting the first connecting component, the motor and end cover can be removed together from the lower side, facilitating the inspection, maintenance, and replacement of the motor. When the user uses the integrated stove daily, the entire fume passage can be thoroughly cleaned by steam high-temperature sterilization and detergent rinsing after easily removing the motor, avoiding damage to the motor.

[0019] Secondly, the air outlet duct unit is located at the bottom of the entire air duct integrated module, which is more conducive to the discharge of accumulated oil.

[0020] Third, the fact that the fan unit is not immersed in the passageway through which the fumes pass can itself ensure the cleanliness of the fan unit for as long as possible. Attached Figure Description

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0022] Figure 1 This is a schematic diagram of the assembly structure of an integrated stove fume treatment system according to a preferred embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the assembly structure of an integrated stove fume treatment system according to a preferred embodiment of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the assembly structure of an integrated stove fume treatment system according to a preferred embodiment of the present invention. Figure 3 ; Figure 4 This is a schematic diagram showing the positional relationship between the air duct integration module and the oil collection tank unit in a preferred embodiment of the present invention; Figure 5 This is a schematic diagram illustrating the assembly process of the motor and end cover according to a preferred embodiment of the present invention; Figure 6 This is a schematic diagram illustrating the assembly process of the end cover, motor, and impeller according to a preferred embodiment of the present invention. Figure 7 This is a schematic diagram illustrating the assembly process of a fan core and volute with end caps according to a preferred embodiment of the present invention. Figure 8 This is a schematic diagram illustrating the assembly process of the air duct integrated module according to a preferred embodiment of the present invention; Figure 9 This is a schematic diagram illustrating the assembly process of the air inlet duct unit according to a preferred embodiment of the present invention; Figure 10 This is a cross-sectional schematic diagram of an air inlet duct unit according to a preferred embodiment of the present invention; Figure 11 This is a preferred embodiment of the present invention. Figure 10 A magnified view of a portion of the image; Figure 12 This is a schematic diagram of the air outlet duct unit according to a preferred embodiment of the present invention. Implementation

[0023] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of the invention.

[0024] In the description of this invention, it should be noted that the terms "upper," "lower," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Similarly, "first" and "second" are only for ease of understanding and have no other directional meaning, and should not be considered as limitations on this invention.

[0025] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0026] like Figure 1-3 As shown, the integrated stove fume treatment system includes a fume collection chamber 1 located at the top of the integrated stove cabinet 100, an air inlet duct unit 200, a fan unit 300, an air outlet duct unit 400, and an oil collection tank unit 500 located at the bottom of the cabinet 100.

[0027] This embodiment provides an assembly structure for an integrated stove fume treatment system. By optimizing the assembly structure, the convenience of the entire chain is enhanced, from the manufacturer's production and assembly of the integrated stove to its installation in the home, to the user's daily use of the integrated stove, and finally to the manufacturer's maintenance and repair of the integrated stove.

[0028] like Figure 3 , 8 As shown, the air inlet duct unit 200 is fixed inside the cabinet 100 and connects to the smoke collection chamber 1 on the upper side of the cabinet 100. The bottom plate of the air inlet duct unit 200 is provided with an air duct outlet 2 for connecting to the air inlet end of the fan unit 300.

[0029] like Figure 1-4 As shown in Figures 8 and 12, the exhaust duct unit 400 is fixed to the bottom plate of the inlet duct unit 200, and the exhaust duct unit 400 extends to the side plate of the cabinet 100 to form a smoke exhaust interface 3. One side plate of the exhaust duct unit 400 is provided with a connection port 4 for connecting to the air outlet of the fan unit 300, and the bottom plate of the exhaust duct unit 400 is provided with an oil outlet 5 for discharging the accumulated oil in the duct by gravity.

[0030] The oil collection tank unit 500 is removably installed inside the cabinet 100 and located below the air outlet duct unit 400, and is connected to the oil outlet 5 of the air outlet duct unit 400.

[0031] The fan unit 300 is located below the air inlet duct unit 200 and on the side where the connection port 4 of the air outlet duct unit 400 is located. In other words, the air inlet duct unit 200, the fan unit 300 and the air outlet duct unit 400 together constitute an integrated air duct module, with the fan unit 300 located at the lower end of the entire integrated air duct module.

[0032] This layout facilitates the maintenance of the fan unit 300. Based on the negative pressure generated during fan operation, the fumes are forced into the exhaust duct unit 400 and discharged into the building's chimney. After the fan is turned off, the liquid oil generated during cooling accumulates more easily in the exhaust duct unit 400. The design of placing the exhaust duct unit 400 at the lower end of the entire ductwork module further facilitates the discharge of accumulated oil. Since the fan unit 300 is not immersed in the fumes passageway, it inherently ensures the long-term cleanliness of the fan unit 300, positively impacting its performance.

[0033] More importantly, such as Figure 4-8 As shown, the fan unit 300 includes a volute 31, an impeller 32, a motor 33, and an end cover 34. The upper side of the volute 31 has an air inlet, and the lower side of the volute 31 has a mounting port 7 extending into the volute 31. The fan unit 300 is located below the air inlet duct unit 200 and on one side of the air outlet duct unit 400. The end of the volute 31 is inserted into the connection port 4 of the air outlet duct unit 400, and the air inlet is connected to the duct outlet 2.

[0034] like Figure 4-6 As shown, the impeller 32 includes a wheel body 321 and a bracket 322 fixed in the middle of the wheel body 321. The motor 33 includes a body 331 and an output shaft 332. The body 331 is fixed to the end cover 34, and the output shaft 332 is located inside the end cover 34 and is detachably connected to the bracket 322 of the impeller 32.

[0035] like Figure 7-8 As shown, the impeller 32 is inserted into the volute 31 through the mounting port 7. The end cover 34 is fixed to the lower side of the volute 31 via a first connecting assembly, thus closing the mounting port 7. The first connecting assembly passes through the first set of through holes S1 of the end cover 34 from bottom to top, sequentially through the end cover 34 and the bottom plate of the volute 31, and can be disassembled from the lower side of the end cover 34 to disconnect the connection. The first connecting assembly is preferably a screw assembly.

[0036] In summary, during the manufacturing, assembly, installation, and maintenance of integrated cooktops, the performance of the cooktop can be tested. If an abnormality is found in the motor 33, it can be removed by disconnecting the first connecting component, removing only the motor 33 and the end cover 34, and then testing, repairing, or replacing the motor 33. When users use the integrated cooktop daily, they can easily remove the motor 33 and perform deep cleaning of the entire fume extraction channel using methods such as high-temperature steam sterilization and detergent rinsing, avoiding damage to the motor 33.

[0037] Furthermore, such as Figure 2-3As shown, the cabinet 100 has a removable bottom plate 11. After the oil collection tank unit 500 and the bottom plate 11 are removed, the fan unit 300 is exposed from inside the cabinet 100, forming an operation window. The first connecting component can be disconnected through the operation window, and the end cover 34 and the motor 33 can be taken out from inside the cabinet 100 through the operation window at the connection port 4 between the output shaft 332 and the bracket 322.

[0038] It should be understood that the removable cabinet bottom plate 11 is based on the sealing consideration of the integrated stove cabinet 100. It is not necessary for the integrated stove cabinet 100. That is to say, the cabinet 100 itself can be without the cabinet bottom plate 11. Apart from the removable oil collection tank unit 500, no other interfering parts are set under the fan unit 300. After the oil collection tank unit 500 is moved, the fan unit 300 is exposed from the bottom of the cabinet 100 without the cabinet bottom plate 11, so as to facilitate the above-mentioned motor 33 removal and placement operations.

[0039] like Figure 7-8 As shown, the fan unit 300 and the air inlet duct unit 200 are connected by a second connecting assembly. The second connecting assembly passes sequentially from bottom to top through the bottom plate of the volute 31, the front panel of the volute 31, and the bottom plate of the air inlet duct unit 200 for secure connection. This installation method improves the convenience of assembling the fan unit 300 and the air inlet duct unit 200. Based on this design, the second connecting assembly can be a rivet assembly, a screw assembly, etc.

[0040] Furthermore, the second connecting assembly passes sequentially from bottom to top through the second set of through holes S2 in the end cover 34, through the end cover 34, the bottom plate of the volute 31, the front panel of the volute 31, and the bottom plate of the air inlet duct unit 200 for fixed connection, and can be disassembled from the underside of the end cover 34 to disconnect the connection. Based on this design consideration, the second connecting assembly is preferably a screw assembly, that is, by disassembling the second connecting assembly, the impeller 32, the motor 33, and the end cover 34 can be removed from the fan unit 300 together.

[0041] Preferably, such as Figure 6 As shown, the impeller body 321 includes two parallel annular rings a and multiple blades b between the rings a. The support 322 includes a base c and multiple separate ears d around the base c. The ears d extend obliquely outward from the outer periphery of the base c toward one side of the impeller body 321 and are fixed to the annular rings a, so that the base c and the ears d enclose a recess, and the gap between adjacent ears d forms an airflow channel. Of course, this preferred embodiment is only one structural form of the impeller 32 and should not be construed as a limitation on the structure of the impeller 32.

[0042] The assembly method of the integrated stove fume treatment system described above includes the following steps: Step 1: Prepare the fan unit 300; 1.1 such as Figure 5-6 As shown, the end cap 34 is fixed to the body 331 of the motor 33, and the output shaft 332 of the motor 33 is perpendicular to the end cap 34. Preferably, the body 331 of the motor 33 is a columnar component with an annular protrusion e on its outer peripheral wall. The end cap 34 has a central through hole that matches the contour of the body 331, and the edge of the central through hole is an annular mounting part f that matches the annular protrusion e. The end cap 34 is fitted over the body 331, with the annular protrusion e close to the annular mounting part f, and is fixed with screws or other fasteners. It can be seen that a part of the body 331 is located inside the end cap 34, and another part is located outside the end cap 34. This is based on a balance between the volume of the fan unit 300 and its heat dissipation function.

[0043] 1.2 such as Figure 6-7 As shown, the motor 33 is installed into the impeller 32, and the output shaft 332 is connected to the bracket 322 in the middle of the impeller body 321 of the impeller 32 to form a fan core fixed on the end cover 34. Preferably, the front part of the motor body 331 extends into the recess of the bracket 322, and has a certain gap with the ear d of the bracket 322 to avoid the impact of the vibration of the motor body 331 during operation on the impeller 32. The fact that part of the body 331 extends into the recess allows the fan unit 300 to be thinner.

[0044] 1.3 such as Figure 7-8 As shown, the fan core, which is fixed on the end cover 34, is inserted into the volute 31 through the mounting port 7 on the side of the volute 31 with the end cover 34 facing inward from the outer impeller 32. The end cover 34 is pressed tightly against the bottom wall of the volute 31 and covers the mounting port 7. The first connecting component passes through the end cover 34 and the bottom plate of the volute 31 in sequence to connect the end cover 34 and the volute 31, so as to install the fan core into the volute 31.

[0045] Step 2: Fabrication of the integrated air duct module; 2.1 As Figure 8 As shown, the outlet air duct unit 400 is fixed to the base plate of the inlet air duct unit 200 with the connection port 4 for connecting to the outlet end of the fan unit 300 facing forward. The fixed connection between the outlet air duct unit 400 and the inlet air duct unit 200 enhances the overall structural integrity and connection strength, reducing the load on the connection point between the fan unit 300 and the two units during system operation. After fixing, the front side of the outlet air duct unit 400 forms a mounting position for installing the fan unit 300 within the inlet air duct unit 200. The base plate of the inlet air duct unit 200 at the mounting position has an air duct outlet 2 that connects to the inlet end of the fan unit 300.

[0046] 2.2 such as Figure 4 , 8As shown, the fan unit 300 prepared in step one is installed horizontally with the volute 31 horizontally positioned, end cap 34 at the bottom, and the air inlet of the volute 31 facing upwards. The end of the volute 31 is inserted into the connection port 4, and the air inlet of the volute 31 is connected to the air duct outlet 2. The second connecting component passes through the end cap 34, the bottom plate of the volute 31, the front plate of the volute 31, and the bottom plate of the air inlet duct unit 200 from bottom to top to connect the fan unit 300 and the air inlet duct unit 200. The air inlet duct unit 200, the air outlet duct unit 400, and the fan unit 400 form an integrated air duct module. The insertion connection method of the end of the volute 31 makes installation more convenient. Preferably, a sealing structure such as a sealing ring is provided between the outer wall of the end of the volute 31 and the inner wall of the connection port 4 to enhance the airtightness of the air duct.

[0047] Step 3: Assemble the air duct integration module into the cabinet 100; like Figure 1-3 As shown, the air duct integration module is assembled into the cabinet 100 of the integrated stove with the air inlet duct unit 200 on top and the air outlet duct unit 400 on the rear. The upper end of the air inlet duct unit 200 connects to the smoke collection chamber 1 on the upper side of the cabinet 100. The fan unit 300 is located on the lower side of the cabinet 100. After this, other functional components of the integrated stove, such as disinfection cabinet, storage cabinet, dishwasher, oven, steamer, etc., can be installed, and finally the cabinet bottom plate 11 and the oil collection tank unit 500 are installed.

[0048] like Figure 1 , 4 As shown in Figure 12, the exhaust duct unit 400 includes a bidirectional duct that extends to both sides of the cabinet 100 and forms smoke exhaust ports 3 respectively; the exhaust duct unit 400 is located on the rear side of the cabinet 100, and the fan unit 300 is located on the front side of the cabinet 100; the connection port 4 of the exhaust duct unit 400 is located on the front side of the exhaust duct unit 400, and the volute 31 of the fan unit 300 is inserted into the connection port 4.

[0049] Preferably, in this embodiment, as Figure 9-11 As shown, the air inlet duct unit 200 includes a first duct component 21 and a second duct component 22; the first duct component 21 is vertically arranged and has a vertically penetrating first channel; the second duct component 22 includes a vertical section 221 and a horizontal section 222 that penetrate to form a second channel, and the bottom plate of the horizontal section 222 is provided with an air outlet 2; the first duct component 21 is inserted into the vertical section 221 of the second duct component 22, and the first channel and the second channel are connected.

[0050] More preferably, the first air duct component 21 is a flat component with a small front-to-back thickness, composed of thin-walled splices. It includes a front plate, a rear plate, and two side plates, which together form a first channel with a rectangular cross-section. The second air duct component 22 is a flat component with a small top-to-bottom thickness, composed of thin-walled splices. The vertical section 221 is located at the rear end of the horizontal section 222, and the two form an L-shape. The outer wall of the first air duct component 21 is tightly attached to the inner surface of the vertical section 221 and connected with screws, so that the two form an L-shaped air duct structure with clearance space on the front side.

[0051] The clearance space can be used to install functional components such as disinfection cabinets, storage cabinets, dishwashers, ovens, and steamers. Moving the fan unit 300 downward reduces its impact on the rear of the cabinet 100, increasing the usable depth of the cabinet 100 and enhancing the functionality of the functional components.

[0052] In the functional layout, components that generate heat, such as disinfection cabinets, are typically placed on the upper side, away from the fan. Furthermore, the gas module is also located on the upper side, ensuring that most of this additional heat is kept away from the fan unit 300, further improving the stability of the fan unit 300 and reducing the impact of the heat generated by the fan operation on the functional components.

[0053] like Figure 4 , 8 As shown in Figure 9, the transverse segment 222 includes an upper plate, a lower plate, and a peripheral plate. The peripheral plate includes two parallel straight plates h in the X direction, an inwardly inclined plate j, and a Y-direction connecting plate k between the two inclined plates j; the inclined plate j and the connecting plate k form an obtuse angle, and the inclined plate j and the straight plate h also form an obtuse angle.

[0054] Under negative pressure, the fumes enter the duct section 222 and are first transported forward along the straight duct between the two straight plates h until they encounter the inclined plate j or the connecting plate k, where they are then drawn into the duct outlet 2. It should be noted that the inclined plate j shortens the journey of the fumes to the duct outlet 2, allowing the fumes to be refracted to the outlet 2 more quickly, thus improving exhaust efficiency. Furthermore, the obtuse-angled connection further prevents fumes from accumulating, reduces noise, and further enhances the exhaust effect.

[0055] like Figure 9-11 As shown, the vertical section 221 and the horizontal section 222 are connected by an arc section 223 that curves from top to bottom towards the horizontal section 222. The arc transition allows the fumes to flow more smoothly into the horizontal section 222 along the arc surface, while also reducing noise and making the integrated stove quieter.

[0056] More preferably, such as Figure 11As shown, the end of the first duct component (marked by P in the figure) extends beyond or is flush with the lower surface of the transverse section panel (marked by R in the figure). This eliminates the need for sealing the connection between the first duct component 21 and the second duct component 22, while still ensuring the airflow performance of the duct. This is because the fumes, under negative pressure, reach the end of the first duct component 21 and immediately enter the transverse section 222 of the second duct component 22. Under this negative pressure, they are drawn away laterally and do not have time to rise again, escaping through the gap at the connection between the first duct component 21 and the second duct component 22. Therefore, this design significantly improves the ease of assembly of the air intake duct unit 200 while ensuring the airflow performance of the duct, saving processing costs.

[0057] like Figure 8 , 12 As shown, the air outlet duct unit 400 includes a left flared section 41, a middle section 42, and a right flared section 43; the front wall of the middle section 42 is recessed between the front walls of the left flared section 41 and the right flared section 43. A connecting port 4 is provided on the front wall of the middle section 42. The bottom wall of the middle section 42 is recessed downwards, and an oil outlet 5 penetrating the bottom wall is provided at the lowest point of the recess.

[0058] Furthermore, when the volute 31 is a left-handed volute, the left flared section 41 is shorter than the right flared section 43, and the slope of the front wall of the left flared section 41 relative to its rear wall is greater than the slope of the right flared section 43 relative to its rear wall. Conversely, when the volute 31 is a right-handed volute, the left flared section 41 is longer than the right flared section 43, and the slope of the front wall of the left flared section 41 relative to its rear wall is less than the slope of the right flared section 43 relative to its rear wall. This is more conducive to left-right balance, ensuring that regardless of which side the user chooses for smoke extraction, approximately the same smoke extraction effect can be obtained.

[0059] In another embodiment, preferably, as Figure 12 As shown, the air outlet duct unit 400 includes a commutator 44 disposed within the bidirectional duct; the commutator 44 includes a curved baffle 441, an upper baffle 442, and a lower baffle 443; the upper baffle 442 and the lower baffle 443 are parallel to each other vertically, and the curved baffle 441 surrounds one side of the two baffles. The curved baffle is basically the same width as the inner width of the air outlet duct, and the upper baffle 442 and the lower baffle 443 are close to the inner wall of the air outlet duct and pivotally connected.

[0060] Specifically, the lower baffle 443 is pivotally connected to the bottom wall of the air outlet duct unit 400 via a rotating shaft 6, and the commutator 44 rotates around the rotating shaft 6 to switch between a first state and a second state. In the first state, the curved baffle 441 is located on the left side of the connection port 4 and isolates the left air outlet duct of the bidirectional air duct; in the second state, the curved baffle 441 is located on the right side of the connection port 4 and isolates the right air outlet duct of the bidirectional air duct.

[0061] The rotating shaft passes through the bottom wall of the air outlet duct unit 400, and a limiting component is provided between the rotating shaft 6 and the bottom wall of the air outlet duct unit 400. The limiting component restricts further rotation of the rotating shaft after the switching state. Based on this, the commutator 44 can be flexibly rotated to select the smoke exhaust direction after the integrated duct module is installed.

[0062] The assembly structure and assembly method of the integrated stove fume treatment system provided by the present invention have been described above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the present invention and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. The assembly structure of an integrated stove fume treatment system, characterized in that... It includes the cabinet, air inlet duct unit, fan unit, air outlet duct unit, and oil collection tank unit; The air inlet duct unit is fixed inside the cabinet and connects to the smoke collection chamber on the upper side of the cabinet. The bottom plate of the air inlet duct unit is provided with an air duct outlet. The exhaust duct unit is fixed to the bottom plate of the inlet duct unit, and the exhaust duct unit extends to the side plate of the cabinet to form a smoke exhaust interface; one side plate of the exhaust duct unit is provided with a connection port, and the bottom plate of the exhaust duct unit is provided with an oil outlet. The oil collection tank unit is removably installed inside the cabinet and is connected to the oil outlet of the air outlet duct unit. The fan unit is located below the air inlet duct unit and on the side where the air outlet duct unit is connected. The fan unit includes a volute, an impeller, a motor, and an end cover; The impeller includes a wheel body and a support fixed in the middle of the wheel body; The motor includes a body and an output shaft. The body is fixed to the end cover, and the output shaft is located inside the end cover and is detachably connected to the impeller bracket. The upper side of the volute is provided with an air inlet, and the lower side of the volute is provided with an installation port extending into the volute. The impeller is installed into the volute through the mounting port, and the end cover is fixed to the lower side of the volute through the first connecting component and closes the mounting port. The first connecting component passes through the end cap and the volute bottom plate from bottom to top for fixed connection and can be disassembled from the bottom side of the end cap to disconnect the connection; The fan unit is located below the air inlet duct unit and on one side of the air outlet duct unit. The end of the volute is inserted into the connection port of the air outlet duct unit, and the air inlet is connected to the air outlet. The air outlet duct unit includes a bidirectional air duct, which extends to both sides of the cabinet and forms smoke exhaust interfaces respectively. The air outlet duct unit is located on the rear side of the cabinet, and the fan unit is located on the front side of the cabinet; The connection port of the air outlet duct unit is located on the front side of the air outlet duct unit, and the volute of the fan unit is inserted into the connection port; The air outlet duct unit includes a left flared section, a middle section and a right flared section; the front wall of the middle section is recessed between the front walls of the left flared section and the right flared section, the connection port is located on the front wall of the middle section, the bottom wall of the middle section is recessed downward, and an oil outlet is provided at the lowest point of the recess that penetrates the bottom wall. When the volute is a left-handed volute, the left flared section is shorter than the right flared section, and the slope of the front wall of the left flared section relative to its rear wall is greater than the slope of the right flared section relative to its rear wall; conversely, when the volute is a right-handed volute, the left flared section is longer than the right flared section, and the slope of the front wall of the left flared section relative to its rear wall is less than the slope of the right flared section relative to its rear wall. The air outlet duct unit includes a commutator disposed in the bidirectional duct, which is pivotally connected to the bottom wall of the air outlet duct unit via a rotating shaft. The commutator rotates around the rotating shaft to switch between a first state and a second state. The rotating shaft passes through the bottom wall of the air outlet duct unit and is restricted from rotating after the state is switched. The commutator includes a curved baffle with the same width as the inner width of the air outlet duct; In the first state, the curved baffle is located to the left of the connection port and blocks the left air outlet of the bidirectional air duct; In the second state, the curved baffle is located on the right side of the connection port and isolates the right air outlet of the bidirectional air duct.

2. The assembly structure of the integrated stove fume treatment system according to claim 1, characterized in that: The fan unit and the air inlet duct unit are connected by a second connecting component; The second connecting component passes through the bottom plate of the volute, the front plate of the volute, and the bottom plate of the air inlet duct unit from bottom to top for fixed connection.

3. The assembly structure of the integrated stove fume treatment system according to claim 2, characterized in that: The second connecting component passes through the end cover, the volute base plate, the volute panel, and the bottom plate of the air inlet duct unit from bottom to top for fixed connection, and can be disassembled from the bottom of the end cover to disconnect the connection.

4. The assembly structure of the integrated stove fume treatment system according to claim 1, characterized in that: The air inlet duct unit includes a first duct component and a second duct component; The first air duct component is vertically arranged and has a vertically penetrating first channel; The second air duct component includes a vertical section and a horizontal section that pass through to form a second channel, and the bottom plate of the horizontal section is provided with an air duct outlet; The first air duct component is inserted into the vertical section of the second air duct component, and the first channel and the second channel are connected.

5. The assembly structure of the integrated stove fume treatment system according to claim 4, characterized in that: The vertical segment and the horizontal segment are connected by an arc that curves from top to bottom toward the horizontal segment. The end of the first air duct component extends beyond the lower surface of the panel of the transverse section; The outer wall of the first air duct component is tightly attached to the inner surface of the vertical section and connected by screws; The peripheral plate of the transverse section includes two parallel straight plates, an inwardly inclined plate, and a connecting plate between the two inclined plates; the inclined plate and the connecting plate form an obtuse angle, and the inclined plate and the straight plate form an obtuse angle.

6. The assembly structure of the integrated stove fume treatment system according to claim 1, characterized in that: The cabinet has a removable bottom plate. After the oil collection tank unit and the bottom plate are removed, the fan unit is exposed from the bottom of the cabinet and forms an operation window. The first connecting component can be disconnected through the operation window, and the end cap and motor can be removed from the cabinet simultaneously through the operation window at the connection port between the output shaft and the bracket.

7. An assembly method for an integrated stove fume treatment system, characterized in that... The assembly structure of the integrated stove fume treatment system as described in claim 1 is adopted; Includes the following steps: Step 1: Prepare the fan unit; The end cap is fixed to the motor body, and the output shaft of the motor is perpendicular to the end cap; The motor is installed into the impeller, and the output shaft is connected to the bracket in the middle of the impeller body to form a fan core fixed on the end cover. Insert the fan core, which is fixed to the end cover, into the volute housing from the mounting opening on the side of the volute housing with the end cover facing outwards and the impeller facing inwards. The end cap is placed tightly against the bottom wall of the volute and covers the mounting port. The first connecting component passes through the end cap and the bottom plate of the volute in sequence to connect the end cap and the volute, so as to install the fan core into the volute. Step 2: Fabrication of the integrated air duct module; The air outlet duct unit is fixed to the base plate of the air inlet duct unit with the connection port for connecting to the air outlet end of the fan unit facing forward. The front side of the air outlet duct unit forms an installation position for installing the fan unit located in the air inlet duct unit. The bottom plate of the air inlet duct unit at the installation position is provided with an air outlet that connects to the air inlet end of the fan unit. The fan unit prepared in step one is assembled into the mounting position with the volute horizontally placed, the end cap facing down, and the air inlet of the volute facing upward. The end of the volute is inserted into the connection port, and the air inlet of the volute is connected to the air duct outlet. The second connecting component passes through the end cover, the bottom plate of the volute, the front plate of the volute, and the bottom plate of the air inlet duct unit from bottom to top to connect the fan unit to the air inlet duct unit. The air inlet duct unit, the air outlet duct unit, and the fan unit form an integrated air duct module. Step 3: Assemble the air duct integration module into the cabinet; The air duct integration module is assembled into the cabinet of the integrated stove with the air inlet duct unit on top and the air outlet duct unit at the rear. The upper end of the air inlet duct unit is connected to the smoke collection chamber on the upper side of the cabinet.

8. The assembly method of the integrated stove fume treatment system according to claim 7, characterized in that: The air inlet duct unit includes a first duct component and a second duct component; the first duct component is vertically arranged and has a vertically penetrating first channel; the second duct component includes a vertical section and a horizontal section that penetrate to form a second channel, and the bottom plate of the horizontal section is provided with an air outlet. The first air duct component is inserted into the vertical section of the second air duct component; the end of the first air duct component extends beyond the lower surface of the panel of the horizontal section or is flush with the lower surface of the panel of the horizontal section; the outer wall of the first air duct component is tightly attached to the inner surface of the vertical section and connected with screws.

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