A fan system for a range hood, a range hood and an island table integrated machine

Abstract

The application belongs to the technical field of kitchen utensils, and discloses a fan system for a smoke machine, the smoke machine and an island table integrated machine. The fan system comprises a smoke machine shell, a worm gear fan and a wind guide cavity. The smoke machine shell comprises a machine shell and a noise reduction guide plate. The machine shell is internally provided with an air inlet cavity and an air outlet cavity. An avoiding slot is formed at a position opposite to an air inlet of the air outlet cavity. The noise reduction guide plate is installed on the machine shell and covers the avoiding slot. A plurality of noise reduction holes are formed in the noise reduction guide plate. The wind guide cavity is located above the worm gear fan. The bottom of the wind guide cavity is provided with a first connecting port connected with an air inlet of the worm gear fan. The side of the wind guide cavity is provided with a second connecting port connected with an air outlet of the air inlet cavity. The air outlet of the worm gear fan is connected with the air inlet of the air outlet cavity. When air flows towards the noise reduction guide plate, resonance occurs between the air and the noise reduction holes, and intense friction occurs between the air and the hole wall of the noise reduction holes. The friction converts sound energy into heat energy, so that the purpose of noise reduction and noise elimination is achieved, and the cooking and dining experience of users is improved.

Description

Technical Field

[0001] This application relates to the field of kitchen appliances technology, specifically to a range hood fan system and a range hood and island integrated unit. Background Technology

[0002] With the popularity of open kitchens, kitchen islands are becoming increasingly popular. However, traditional range hoods or integrated cooktops are separate from the dining table, and existing products are not suitable for the integrated cooking and dining scenario. There is a lack of products that can be installed on the island and can realize cooking and smoke purification functions.

[0003] The related technology provides an island-style appliance that can be used on a kitchen island. The island-style appliance includes a range hood and an induction cooker. The induction cooker is used for cooking, and the range hood includes a fan system that can extract the fumes generated during cooking, thereby improving the user's dining environment.

[0004] However, during the operation of the range hood, as the air volume of the fan system increases, the noise also increases, which not only affects the user's cooking and dining experience, but also poses certain risks to the user's health if the noise exceeds a certain decibel or lasts for too long.

[0005] This section provides background information related to this application, which is not necessarily prior art. Utility Model Content

[0006] The purpose of this application is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this application is to provide a range hood fan system, a range hood and island integrated unit, which has a noise reduction function, reduces noise, and improves the user's cooking and dining experience.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] This application provides a fan system for a smoke hood, comprising:

[0009] The range hood housing includes a housing and a noise reduction guide plate. The housing has an air inlet chamber and an air outlet chamber. An avoidance groove is provided on the housing opposite to the air inlet of the air outlet chamber. The noise reduction guide plate is installed on the housing and covers the avoidance groove. The noise reduction guide plate has multiple noise reduction holes.

[0010] A worm gear fan, the air outlet of which is connected to the air inlet of the air outlet chamber;

[0011] An air guide cavity is located above the worm gear fan. The bottom of the air guide cavity has a first connection port that connects to the air inlet of the worm gear fan, and the side has a second connection port that connects to the air outlet of the air inlet cavity.

[0012] As an optional solution for the fan system of the range hood, the air outlet cavity is L-shaped, the air inlet of the air outlet cavity is located at the bottom of the air outlet cavity, the air outlet of the air outlet cavity is located at the top of the air outlet cavity, and the noise reduction guide plate is located at the bend of the air outlet cavity.

[0013] As an optional solution for the fan system of the range hood, the noise reduction guide plate includes a straight guide section and a curved guide section. The straight guide section extends from the air inlet of the air outlet cavity to the turning point of the air outlet cavity, and the curvature of the curved guide section is the same as the curvature of the turning point of the casing.

[0014] As an optional solution for the fan system of the range hood, the range hood housing also includes a mounting plate, which is located on the outside of the housing and fixedly connected to the housing, and the noise reduction guide plate is sandwiched between the mounting plate and the housing.

[0015] As an optional solution for the fan system of the smoke hood, the mounting plate includes a straight mounting section and an arc-shaped mounting section, wherein the straight mounting section is fitted with the straight guide section and the arc-shaped mounting section is fitted with the arc-shaped guide section.

[0016] As an optional solution for the fan system of the smoke hood, the mounting plate is provided with a number of ventilation slots at the position opposite to the noise reduction guide plate, and the area of ​​a single ventilation slot is larger than the area of ​​a single noise reduction hole.

[0017] As an optional solution for the fan system of the range hood, the surface of the noise reduction guide plate facing away from the air outlet cavity is provided with a sound-absorbing layer.

[0018] As an optional solution for the fan system of the smoke hood, a plurality of noise reduction holes are arranged in a matrix uniformly on the noise reduction guide plate.

[0019] Secondly, this application provides a smoke hood, including a smoke collection chamber, a lifting device, and a smoke hood fan system as described above. The smoke collection chamber is vertically and vertically mounted in the air inlet chamber, and the air outlet of the smoke collection chamber is connected to the air inlet chamber. The lifting device is mounted in the air inlet chamber and is used to drive the smoke collection chamber to rise and fall.

[0020] Thirdly, this application provides an island-style integrated appliance, including an integrated appliance housing, an induction cooker, and a range hood as described above, wherein the induction cooker and the range hood are both installed in the integrated appliance housing.

[0021] The beneficial effects of this application are as follows:

[0022] The range hood fan system provided in this application includes a range hood housing, a worm gear fan, and an air guide cavity. The air inlet of the worm gear fan is connected to the air outlet of the air inlet cavity of the range hood housing through the air guide cavity, and its air outlet is connected to the air inlet of the air outlet cavity of the range hood housing. A noise reduction guide plate is installed opposite to the air inlet of the air outlet cavity. When the airflow from the air outlet of the worm gear fan blows towards the noise reduction guide plate, the air in the noise reduction hole and the air in the air outlet cavity form a resonance system using the Helmholtz resonance principle. When the noise frequency of the worm gear fan is the same as the natural frequency of this resonance system, the air in the noise reduction hole resonates and rubs violently against the hole wall. The friction converts sound energy into heat energy, thereby achieving the purpose of noise reduction and improving the user's cooking and dining experience.

[0023] The range hood and island counter integrated unit provided in this application has a noise reduction function by applying the above-mentioned range hood fan system, which reduces noise and improves the user's cooking and dining experience. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the island-style integrated machine provided in the embodiments of this application.

[0025] Figure 2 This is an exploded view of the island-style integrated machine provided in the embodiments of this application.

[0026] Figure 3 This is a cross-sectional schematic diagram of the island-style integrated machine provided in the embodiments of this application.

[0027] Figure 4 This is a cross-sectional schematic diagram of the range hood provided in the embodiments of this application.

[0028] Figure 5 This is a structural schematic diagram of the range hood housing, noise reduction guide plate, and mounting plate provided in the embodiments of this application.

[0029] Figure 6 This is an exploded view of the range hood housing, noise reduction guide plate, and mounting plate provided in the embodiments of this application.

[0030] Figure 7 This is an exploded view of the noise reduction guide plate and mounting plate provided in the embodiments of this application.

[0031] In the picture:

[0032] 1. All-in-one casing; 10. Receiving cavity; 11. Second air inlet; 12. Second air outlet;

[0033] 2. Range hood; 21. Range hood housing; 2101. Air inlet cavity; 2102. Air outlet cavity; 211. Housing; 2110. Clearance slot; 212. Noise reduction guide plate; 2120. Noise reduction hole; 2121. Straight guide section; 2122. Arc guide section; 213. Mounting plate; 2130. Ventilation slot; 2131. Straight mounting section; 2132. Arc mounting section; 22. Range hood main control component; 23. Smoke collection cavity; 24. Air guide cavity; 241. First connection port; 242. Second connection port; 25. Worm gear fan; 261. Purification component; 262. Oil cup; 263. Guide component; 27. Lifting device; 28. Filter assembly;

[0034] 3. Induction cooker; 301. Air inlet channel; 31. Induction cooker shell; 311. First air inlet; 312. First air outlet; 32. Induction cooker main control component; 33. Heating device; 34. Cooktop panel; 35. Cooling fan;

[0035] 4. Central control system. Detailed Implementation

[0036] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0037] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] In the description of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] like Figures 1 to 2 As shown, this application provides an island-style integrated appliance that can be used in open kitchens and can be installed in the island cabinets of an open kitchen (not shown in the figure), which can enhance the user's cooking and dining experience.

[0041] In some embodiments, the island-style integrated unit is installed with the island cabinet as follows: the island cabinet includes a cabinet body and a countertop installed on the cabinet body. A slot is provided on the countertop that communicates with the internal space of the cabinet body. The island-style integrated unit is embedded into the internal space of the cabinet body through the slot, and part of the structure of the island-style integrated unit overlaps the countertop to realize the installation of the island-style integrated unit.

[0042] For ease of description, Figure 1 and Figure 2 The location of the all-in-one central island unit is for reference. Figure 1 and Figure 2 The "up" and "down" in the text refer to the vertical position of the island-style integrated machine. Figure 1 and Figure 2 The left and right sides of the island-style all-in-one machine are indicated by the left and right sides. Figure 1 and Figure 2 The front and rear sides in the text refer to the front and rear sides of the island-style integrated unit. It should be noted that this directional definition is mainly for the convenience of describing the technical solution of this application and should not be regarded as a limitation on the technical solution of this application.

[0043] Continue as Figures 1 to 2 As shown, the island-style integrated appliance includes an integrated casing 1, a range hood 2, an induction cooker 3, and a central control system 4. The integrated casing 1 is embedded into the cabinet from the slot, and the integrated casing 1 has an upward-facing receiving cavity 10. The range hood 2, the induction cooker 3, and the central control system 4 are all installed in the receiving cavity 10. The central control system 4 is communicatively connected to the range hood 2 and the induction cooker 3, and is used to control the range hood 2 to execute the corresponding working mode according to the operating status of the induction cooker 3.

[0044] The range hood 2 is roughly L-shaped and positioned near the left side of the receiving cavity 10, occupying the left and right bottom sides of the cavity. The induction cooker 3 is roughly cuboid in shape and is installed on the top right side of the receiving cavity 10, above the bottom right side of the range hood 2. The central control system 4 is roughly cuboid in shape and is installed at the rear of the bottom right side of the range hood 2, below the induction cooker 3. This arrangement allows the range hood 2, induction cooker 3, and central control system 4 to be fully and rationally arranged within the receiving cavity 10, improving the space utilization of the cavity and making the island-style integrated unit more compact and smaller in size, adaptable to more island cabinet sizes. It also facilitates the electrical connection between the central control system 4 and the range hood 2 and induction cooker 3.

[0045] The induction cooker 3 includes an induction cooker housing 31, a heating device 33, a cooktop panel 34, and an induction cooker main control component 32. The induction cooker housing 31 is installed inside the receiving cavity 10. The heating device 33 is installed inside the induction cooker housing 31 and is used to heat the cooktop panel 34. The induction cooker main control component 32 is installed inside the induction cooker housing 31 and is located below the heating device 33. It is connected to the main control system 4. The induction cooker main control component 32 is used to control the start and stop of the induction cooker 3 and the working mode of the induction cooker 3. The cooktop panel 34 is fixed to the top of the integrated housing 1 and covers part of the opening of the receiving cavity 10. The cooktop panel 34 is configured to overlap the table surface from the slot.

[0046] The induction cooker 3 also includes a cooling fan 35, which is installed on the induction cooker housing 31 and is used to dissipate heat from the main control component 32 of the induction cooker, ensuring that the main control component 32 of the induction cooker can operate stably. In order to ensure that the cooling fan 35 can draw and deliver air normally, an air intake channel 301 is formed between the bottom of the induction cooker housing 31 and the top of the air guide cavity 24. The bottom of the induction cooker housing 31 has a first air inlet 311 that communicates with the air intake channel 301, and the front side wall of the integrated housing 1 has a second air inlet 11 that communicates with the air intake channel 301. Similarly, the right side wall of the induction cooker housing 31 has a first air outlet 312, and the right side wall of the integrated housing 1 has a second air outlet 12 that communicates with the first air outlet 312.

[0047] In this embodiment, the second air inlet 11 and the second air outlet 12 of the all-in-one casing 1 are both grille-shaped air inlets, that is, the second air inlet 11 is formed by a plurality of elongated holes spaced apart in the left-right direction, and the second air outlet 12 is formed by a plurality of elongated holes spaced apart in the front-back direction. This arrangement can ensure air intake and exhaust while preventing external debris from entering the all-in-one casing 1, ensuring that the cooling fan 35 can operate stably.

[0048] like Figures 3 to 4As shown, the range hood 2 includes a range hood housing 21, a smoke collection chamber 23, an air guide chamber 24, a worm gear fan 25, a lifting device 27, and a range hood main control assembly 22. The range hood housing 21, the air guide chamber 24, and the worm gear fan 25 constitute a fan system. The range hood housing 21 is installed on the left side of the receiving cavity 10, and has an air inlet chamber 2101 and an air outlet chamber 2102. The smoke collection chamber 23 is vertically and vertically installed in the air inlet chamber 2101 of the range hood housing 21. The lifting device 27 is used to drive... The smoke collection chamber 23 is raised and lowered; the main control component 22 of the range hood is installed on the top of the smoke collection chamber 23 and is connected to the main control system 4 for communication, so that the main control system 4 can control the range hood 2 to adjust to a suitable working state according to the working state of the induction cooker 3, so as to better extract the oil fumes; the air guide chamber 24 is used to connect the air outlet of the air inlet chamber 2101 of the range hood housing 21 and the air inlet of the worm gear fan 25, and the air outlet of the worm gear fan 25 is connected to the air inlet of the air outlet chamber 2102 of the range hood housing 21.

[0049] The range hood 2 provided in this application, on the one hand, ensures that when the worm gear fan 25 starts, a negative pressure is generated in the smoke collection chamber 23 to draw in air and / or fumes from the external environment. Then, this part of the air and / or fumes enters the smoke collection chamber 23 and enters the worm gear fan 25 through the air guide chamber 24, and then enters the air outlet 2102 of the range hood housing 21 from the air outlet of the worm gear fan 25, and finally is discharged from the air outlet of the air outlet 2102. On the other hand, dividing the range hood 2 into multiple assemblable independent modules not only facilitates the manufacturing and processing of the range hood 2, but also facilitates the batch assembly of different modules of the range hood 2 into the receiving cavity 10 of the integrated housing 1, improving the manufacturing, processing and assembly efficiency of the range hood 2. Moreover, different modules of the range hood 2 can be inspected or replaced individually without affecting other modules, reducing the maintenance cost of the range hood 2.

[0050] The air outlet of the air outlet chamber 2102 of the range hood housing 21 is located at the bottom of the air outlet chamber 2102, and the air outlet of the air outlet chamber 2102 is located at the top of the range hood housing 21. In addition, the air inlet of the smoke collection chamber 23 is also located at the top of the range hood 2, enabling the range hood 2 to achieve an upward suction and upward exhaust mode. The upward suction and upward exhaust mode has the following advantages: First, the upward exhaust mode can be adapted to the traditional upward suction and upward exhaust duct in the kitchen, making it easy to connect the air outlet of the range hood 2 to the kitchen exhaust duct, saving the cost and construction time of duct modification; Second, the upward exhaust mode can better follow the upward airflow characteristics, reducing the resistance of airflow turning compared to the downward exhaust mode, making the smoke exhaust smoother; Third, compared with the downward exhaust mode where the duct is blocked due to the accumulation of oil, in the upward exhaust mode, the oil will flow downward or drip under the action of gravity, resulting in less oil accumulation in the duct and a smoother smoke exhaust path.

[0051] In this embodiment, the smoke collection chamber 23 is vertically and flexibly installed within the air inlet chamber 2101. The smoke collection chamber 23 has a retracted state within the air inlet chamber 2101 and a working state protruding from the air inlet chamber 2101. If the smoke collection chamber 23 is initially in the retracted state, when the range hood 2 needs to be started, the smoke collection chamber 23 moves upward to the working state protruding from the air inlet chamber 2101, so that the air inlet of the smoke collection chamber 23 is above the integrated machine casing 1, so as to facilitate the extraction of cooking fumes. If the smoke collection chamber 23 is initially in the working state, when the range hood 2 does not need to be started to extract cooking fumes and needs to be retracted, the smoke collection chamber 23 moves downward into the air inlet chamber 2101 and is in the retracted state. At this time, the top surface of the island integrated machine is a flat surface, which is convenient for users to eat or place household items.

[0052] In some embodiments, the air guide cavity 24 is located above the worm gear fan 25. The bottom of the air guide cavity 24 has a first connection port 241 that connects to the air inlet of the worm gear fan 25, and its side has a second connection port 242 that connects to the air outlet of the air inlet cavity 2101, so that the worm gear fan 25 and the air inlet cavity 2101 can be connected through the air guide cavity 24. Then, the air outlet of the worm gear fan 25 is connected to the air inlet of the air outlet cavity 2102. This configuration ensures that when the worm gear fan 25 starts, it can draw the air out of the air inlet chamber 2101 of the range hood housing 21 through the air guide chamber 24, creating a negative pressure in the air inlet chamber 2101. This causes air and / or fumes from the external environment to flow into the air inlet chamber 2101 from the air inlet, then into the worm gear fan 25 through the air guide chamber 24, and then into the air outlet chamber 2102 of the range hood housing 21 from the air outlet of the worm gear fan 25, finally being discharged from the air outlet of the air outlet chamber 2102.

[0053] In some embodiments, the range hood 2 further includes a purification component 261, which is detachably installed in the air outlet chamber 2102 and used to purify cooking fumes. This configuration allows the purification component 261 to clean the cooking fumes, enabling the purified fumes drawn by the range hood 2 to be directly discharged into the room without affecting the user's cooking and dining environment. This option is available to users whose kitchens do not have exhaust ducts, improving their cooking and dining experience and meeting their needs.

[0054] The range hood 2 also includes a filter assembly 28, which is installed at the air inlet of the smoke collection chamber 23 and covers the air inlet of the smoke collection chamber 23. The filter assembly 28 is used to separate oil and grease from the fumes, preventing or reducing the entry of oil and grease into the range hood 2 and ensuring that the range hood 2 can work normally. In addition, the filter assembly 28 can also prevent large-sized debris from the external environment from entering the range hood 2 through the air inlet of the smoke collection chamber 23, ensuring that the range hood 2 can work normally.

[0055] To facilitate the collection of oil sludge separated by the filter assembly 28, an oil guide groove is provided at the bottom of the air inlet of the smoke collection chamber 23. The bottom of the filter assembly 28 is inserted into the oil guide groove, and an oil outlet is provided at the bottom of the oil guide groove. When oil fumes enter the smoke collection chamber 23 from the air inlet through the filter assembly 28, the filter assembly 28 separates the oil sludge from the fumes. The oil sludge adheres to the filter assembly 28 and flows into the oil guide groove under gravity, finally flowing out from the oil outlet of the oil guide groove and flowing downwards along the inner wall of the smoke collection chamber 23.

[0056] To collect grease, the range hood 2 also includes a guide member 263 and an oil cup 262. The guide member 263 is installed at the bottom front side of the range hood housing 21. Grease flowing out of the oil outlet of the oil guide groove flows along part of the structure of the range hood housing 21 to the guide member 263. The oil cup 262 is located below the guide member 263 and is used to collect the grease flowing out of the guide member 263. In practical applications, oil-absorbing paper can also be placed in the oil cup 262 to absorb the grease, which not only makes it easy to clean the grease in the oil cup 262, but also helps to keep the oil cup 262 clean.

[0057] When the range hood 2 is working, as the air volume of the worm gear fan 25 increases, the noise also increases. This not only affects the user's cooking and dining experience, but if the noise exceeds a certain decibel or lasts for too long, it will also pose a certain risk to the user's health.

[0058] To solve or mitigate the above problems, such as Figures 4 to 6 As shown, the range hood 2 provided in this application has a range hood housing 21 including a housing 211 and a noise reduction guide plate 212. The housing 211 has an air inlet chamber 2101 and an air outlet chamber 2102. An avoidance slot 2110 is provided at the position opposite to the air inlet of the air outlet chamber 2102. The noise reduction guide plate 212 is installed on the housing 211 and covers the avoidance slot 2110. Noise reduction holes 2120 are provided on the noise reduction guide plate 212. When the airflow from the outlet of the worm gear fan 25 blows toward the noise reduction guide plate 212, the air in the noise reduction hole 2120 and the air in the outlet cavity 2102 form a resonance system by utilizing the Helmholtz resonance silencing principle. When the noise frequency of the worm gear fan 25 is the same as the natural frequency of this resonance system, the air in the noise reduction hole 2120 resonates and rubs violently against the hole wall of the noise reduction hole 2120. The friction converts sound energy into heat energy, thereby achieving the purpose of noise reduction and improving the user's cooking and dining experience.

[0059] In some embodiments, the noise reduction guide plate 212 may be a thin metal plate, on which the diameter of the noise reduction holes 2120 is 0.5 mm to 1 mm.

[0060] In this embodiment, the air outlet cavity 2102 is L-shaped. The air inlet of the air outlet cavity 2102 is located at the bottom of the air outlet cavity 2102, and the air outlet of the air outlet cavity 2102 is located at the top of the air outlet cavity 2102. The noise reduction guide plate 212 is located at the bend of the air outlet cavity 2102. It can not only play a noise reduction role, but also guide the airflow in the air outlet cavity 2102, guiding the airflow to the top air outlet of the air outlet cavity 2102.

[0061] like Figures 6 to 7 As shown, the noise reduction guide plate 212 includes a straight guide section 2121 and a curved guide section 2122. The straight guide section 2121 extends from the air inlet of the air outlet cavity 2102 to the turning point of the air outlet cavity 2102. The curvature of the curved guide section 2122 is the same as the curvature of the turning point of the housing 211. This design not only facilitates the adaptation of the noise reduction guide plate 212 to the air outlet cavity 2102 inside the housing 211, but also allows the curved guide section 2122 to better guide the airflow to the top air outlet of the air outlet cavity 2102.

[0062] Furthermore, multiple noise reduction holes 2120 are arranged in a matrix evenly on the noise reduction guide plate 212. Specifically, multiple noise reduction holes 2120 are provided on both the straight guide section 2121 and the curved guide section 2122, which are evenly distributed in a matrix. In addition, in this embodiment, the straight guide section 2121 is provided with four mounting holes, the area of ​​which is larger than the area of ​​which is a single noise reduction hole 2120. These mounting holes are used to secure the housing 211 to the integrated housing 1 with screws.

[0063] In some embodiments, the range hood housing 21 further includes a mounting plate 213, which is located on the outside of the housing 211 and fixedly connected to it. The noise reduction guide plate 212 is sandwiched between the mounting plate 213 and the housing 211. This configuration, using the mounting plate 213 to fix the noise reduction guide plate 212 to the clearance slot 2110 of the housing 211, reduces the number of mounting holes on the noise reduction guide plate 212, thus minimizing the impact of the mounting holes on the noise reduction effect of the noise reduction guide plate 212 itself.

[0064] Furthermore, the mounting plate 213 includes a straight mounting section 2131 and an arc-shaped mounting section 2132. The straight mounting section 2131 fits into the flow guiding straight section 2121, and the arc-shaped mounting section 2132 fits into the flow guiding arc-shaped section 2122, so as to better fit into the noise reduction guide plate 212 and improve the installation stability of the noise reduction guide plate 212.

[0065] Furthermore, to reduce the impact of the mounting plate 213 on the noise reduction effect of the noise reduction guide plate 212, the mounting plate 213 is provided with several ventilation slots 2130 at positions opposite to the noise reduction guide plate 212, and the area of ​​a single ventilation slot 2130 is larger than the area of ​​a single noise reduction hole 2120. It is understood that the ventilation slots 2130 are used to ensure that the noise reduction holes 2120 on the noise reduction guide plate 212 can communicate with the outside of the air outlet cavity 2102 to ensure the noise reduction effect; therefore, the area of ​​the ventilation slots 2130 is much larger than the area of ​​the noise reduction holes 2120.

[0066] exist Figure 7 In the example shown, the mounting plate 213 has four ventilation slots 2130, which basically correspond to most of the noise reduction holes 2120 on the noise reduction guide plate 212. In other embodiments, the mounting plate 213 may also have two ventilation slots 2130, for example, to allow for the placement of ventilation slots 2120 on the mounting plate 213. Figure 7 In the example, the two ventilation slots 2130 on the left and right or top and bottom are opened together to form two larger ventilation slots 2130; of course, the mounting plate 213 can also be provided with a single ventilation slot 2130, for example, it can be used to... Figure 7 In the example, the four ventilation slots 2130 are opened together to form a larger ventilation slot 2130.

[0067] It is worth noting that, Figure 7 The partitions between the four ventilation slots 2130 in the example can also serve as a support structure for the noise reduction guide plate 212, preventing it from deforming under airflow impact. Therefore, it is preferable to have two, three, or four ventilation slots 2130, using the partitions between them to support the noise reduction guide plate 212. Furthermore, the ventilation slots 2130 can also serve as weight-reduction grooves to reduce the weight of the mounting plate 213, achieving a lightweight design.

[0068] To improve the noise reduction effect of the noise reduction guide plate 212, a sound-absorbing layer is provided on the surface of the noise reduction guide plate 212 facing away from the air outlet cavity 2102. The sound-absorbing layer can be used to absorb sound and reduce noise. For example, the sound-absorbing layer can be a porous sound-absorbing material such as glass wool or rock wool.

[0069] In some embodiments, the noise reduction guide plate 212 can be made of sheet metal, and the mounting plate 213 can also be made of sheet metal, which can improve the structural strength and stability of the noise reduction guide plate 212.

[0070] This application also provides a control method for an integrated island control unit, based on the aforementioned integrated island control unit, comprising the following steps:

[0071] When the user starts the induction cooker 3, the range hood 2 starts after the induction cooker 3 starts, and the smoke collection chamber 23 moves upward to the working state;

[0072] When the induction cooker 3 is in low-speed working mode, the range hood 2 will automatically adjust to low-speed working mode.

[0073] When the induction cooker 3 is in the medium-speed working mode, the range hood 2 will automatically adjust to the medium-speed working mode.

[0074] When the induction cooker 3 is in high-level working mode, the range hood 2 will automatically adjust to high-level working mode.

[0075] Among them, the low settings of the induction cooker 3 (such as "keep warm" and "simmer") typically have a power of 200W-600W, suitable for stewing and keeping warm. The medium settings of the induction cooker 3 (such as "medium heat" and "steam") typically have a power of 800W-1500W, suitable for frying eggs and cooking porridge. The high settings of the induction cooker 3 (such as "high heat" and "stir-fry") typically have a power of 1800W-2200W, suitable for quickly stir-frying vegetables and boiling water.

[0076] The essence of the two speed settings on a range hood is to change the exhaust volume by adjusting the rotation speed of the worm gear fan 25. The change in the rotation speed of the worm gear fan 25 is directly reflected in the "motor input power of the worm gear fan 25". For example, when the range hood is at a low speed, the motor speed of the worm gear fan 25 is slow, and the input power is low, typically between 50W and 100W, suitable for the initial stages of cooking or scenarios with less smoke (such as stewing). When the range hood is at a medium speed, the motor speed and input power of the worm gear fan 25 are moderate, generally between 100W and 150W, suitable for everyday stir-frying that produces moderate smoke. When the range hood is at a high speed, the motor of the worm gear fan 25 runs at full power, with the highest input power, typically between 150W and 250W, used to handle scenarios with strong smoke, such as stir-frying and deep-frying.

[0077] Obviously, the above embodiments of this application are merely examples for clear illustration and are not intended to limit the implementation of this application. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A fan system for a range hood, characterized in that, include: The range hood housing (21) includes a housing (211) and a noise reduction guide plate (212). The housing (211) has an air inlet chamber (2101) and an air outlet chamber (2102). An avoidance slot (2110) is provided on the housing (211) opposite to the air inlet of the air outlet chamber (2102). The noise reduction guide plate (212) is installed on the housing (211) and covers the avoidance slot (2110). A plurality of noise reduction holes (2120) are provided on the noise reduction guide plate (212). A worm gear fan (25) has its outlet connected to the inlet of the outlet chamber (2102); The air guide cavity (24) is located above the worm gear fan (25). The bottom of the air guide cavity (24) has a first connection port (241) that connects to the air inlet of the worm gear fan (25), and the side has a second connection port (242) that connects to the air outlet of the air inlet cavity (2101).

2. The fan system for a smoke hood according to claim 1, characterized in that, The air outlet cavity (2102) is L-shaped. The air inlet of the air outlet cavity (2102) is located at the bottom of the air outlet cavity (2102), and the air outlet of the air outlet cavity (2102) is located at the top of the air outlet cavity (2102). The noise reduction guide plate (212) is located at the bend of the air outlet cavity (2102).

3. The fan system for a smoke hood according to claim 2, characterized in that, The noise reduction guide plate (212) includes a straight guide section (2121) and a curved guide section (2122). The straight guide section (2121) extends from the air inlet of the air outlet cavity (2102) to the turning point of the air outlet cavity (2102). The curvature of the curved guide section (2122) is the same as the curvature of the turning point of the housing (211).

4. The fan system for a smoke hood according to claim 3, characterized in that, The outer casing (21) of the range hood also includes a mounting plate (213), which is located on the outside of the casing (211) and is fixedly connected to the casing (211). The noise reduction guide plate (212) is sandwiched between the mounting plate (213) and the casing (211).

5. The fan system for a smoke hood according to claim 4, characterized in that, The mounting plate (213) includes a straight mounting section (2131) and an arc mounting section (2132). The straight mounting section (2131) is attached to the straight flow guiding section (2121), and the arc mounting section (2132) is attached to the arc guiding section (2122).

6. The fan system for a smoke hood according to claim 5, characterized in that, The mounting plate (213) is provided with a plurality of ventilation slots (2130) at the position opposite to the noise reduction guide plate (212), and the area of ​​a single ventilation slot (2130) is larger than the area of ​​a single noise reduction hole (2120).

7. The fan system for a smoke hood according to any one of claims 1-6, characterized in that, The surface of the noise reduction guide plate (212) facing away from the air outlet cavity (2102) is provided with a sound-absorbing layer.

8. The fan system for a smoke hood according to claim 7, characterized in that, Multiple noise reduction holes (2120) are arranged in a matrix uniformly on the noise reduction guide plate (212).

9. A range hood (2), characterized in that, The system includes a smoke collection chamber (23), a lifting device (27), and a fan system for a smoke machine as described in any one of claims 1-8. The smoke collection chamber (23) is vertically and vertically mounted on the air inlet chamber (2101), and the air outlet of the smoke collection chamber (23) is connected to the air inlet chamber (2101). The lifting device (27) is mounted on the air inlet chamber (2101) and is used to drive the smoke collection chamber (23) to rise and fall.

10. An island-style integrated machine, characterized in that, The device includes an integrated housing (1), an induction cooker (3), and a range hood (2) as described in claim 9, wherein the induction cooker (3) and the range hood (2) are both installed in the integrated housing (1).

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