Novel air duct system of range hood

Abstract

The utility model discloses a novel air duct system of a range hood, which relates to the technical field of range hoods and comprises a range hood box and a coaming arranged above the box. A side suction structure and a top suction structure are arranged at the bottom of the box body; the side suction structure comprises a back plate, a vertical exhaust fume collecting hood and a front panel which are fixed at the bottom of the box body and are sequentially arranged from back to front; an oil way channel is defined between the back plate and the vertical exhaust fume collecting hood; an oil cup is mounted at the bottom of the oil path channel; a side air inlet duct with an opening in the bottom is defined between the vertical exhaust fume collecting hood and the front panel; the bottom opening of the side air inlet duct faces the direction of the gas stove; the top of the side air inlet channel communicates with an air cavity in the box body. An oil path channel is ingeniously constructed between the back plate and the vertical exhaust fume collecting hood to ensure that oil flows along a specific path, so that the sound insulation effect is improved, an oil path is improved, and the leakage risk is reduced; the oil way channel is seamlessly connected with the vertical exhaust fume collecting hood structure, oil liquid retention points are reduced, all oil liquid is finally guided to an oil cup, and regular cleaning by a user is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to range hood technical field, especially a novel air duct system of range hood. BACKGROUND

[0002] Traditional range hood usually adopts single side suction or top suction structure, and such design often has problems such as oil fume escape, low suction rate and poor oil fume separation effect. In order to improve the oil fume suction efficiency and the oil fume separation effect, range hoods combining side suction and top suction structures appear in the market, but these products still have optimization space in the air duct design, especially in the aspects of oil fume guiding, air flow distribution and oil collection. SUMMARY

[0003] The utility model discloses a novel air duct system of range hood, which realizes more efficient and cleaner oil fume collection and treatment through reasonable design of side suction structure and top suction structure.

[0004] In order to realize the above-mentioned purpose, the utility model provides a novel air duct system of range hood, which comprises a range hood box body and a coaming arranged above the box body; the bottom of the box body is provided with a side suction structure and a top suction structure; the side suction structure comprises a back plate, a vertical fume collecting hood and a front panel which are fixed to the bottom of the box body and arranged in sequence from back to front; an oil path channel is formed between the back plate and the vertical fume collecting hood; an oil cup is installed at the bottom of the oil path channel; a side air inlet air duct with an open bottom is formed between the vertical fume collecting hood and the front panel; the open bottom of the side air inlet air duct faces the direction of the gas stove; and the top of the side air inlet air duct is communicated with an internal air cavity of the box body.

[0005] After the above structure is adopted, the side suction structure is composed of the back plate, the vertical fume collecting hood and the front panel, which are tightly fixed to the bottom of the box body and sequentially arranged from back to front. The oil path channel is ingeniously constructed between the back plate and the vertical fume collecting hood, which ensures the oil to flow along a specific path, increases the sound insulation effect, improves the oil path and reduces the risk of dripping. The oil path channel is seamlessly connected with the structure of the vertical fume collecting hood, reduces the oil retention points, and all the oil is finally guided to the oil cup, which is convenient for the user to clean regularly and keeps the kitchen environment clean.

[0006] Preferably, the vertical smoke hood comprises an intermediate guide plate arranged in parallel with the front panel, an inclined top plate arranged above the intermediate guide plate and inclined towards the front panel and fixedly connected with the front panel, and a bottom guide plate arranged at the bottom of the intermediate guide plate and extending towards the bottom of the front panel; a bottom opening is formed between the bottom guide plate and the bottom of the front panel; the inner corners between the intermediate guide plate and the inclined top plate and between the intermediate guide plate and the bottom guide plate are obtuse angles and smoothly transitioned, so that a gentle airflow channel is formed between the vertical smoke hood and the front panel. Through this design, the turbulence of flue gas during the rising process is reduced, and the oil fume guiding performance is improved. The side air inlet duct is designed in a streamline shape, which reduces airflow resistance, improves oil fume flow efficiency, reduces noise, and creates a quiet cooking environment.

[0007] Preferably, the top of the vertical smoke hood is provided with a side suction port, and the side suction port communicates with the internal air cavity of the box body. The side suction port can ensure effective trapping of oil.

[0008] Preferably, the side suction port is designed in a double-row structure, and the smoke exhaust directions of each row of side suction ports are different, forming cross suction force. The smoke exhaust directions of the two rows of side suction ports are different, forming cross suction force, which ensures that the oil fume is sucked in all directions without dead angle.

[0009] Preferably, the edge of the side suction port is additionally provided with a flange structure protruding towards the oil path direction. Through this design, the invasion of oil droplets is effectively blocked, and the cleaning of the side air inlet duct is maintained.

[0010] Preferably, the top suction structure comprises a horizontal smoke hood fixed above the vertical smoke hood; the horizontal smoke hood and the box body form a top air inlet duct, and the top air inlet duct communicates with the internal air cavity of the box body; the horizontal smoke hood is in the form of an arc-shaped plate curved towards the direction of the gas stove, and the upper surface of the arc-shaped plate is uniformly provided with top suction ports communicating between the outside and the top air inlet duct. Through the design of the arc-shaped plate, not only is it beautiful, but also the oil fume capture area is enlarged.

[0011] Preferably, the top suction ports are uniformly distributed on both sides of the upper surface of the horizontal smoke hood. Through this design, a symmetrical layout is formed, the suction force is balanced, and the escape of oil fume is reduced.

[0012] Preferably, an inner top oil suction net is embedded in the horizontal smoke hood. The oil fume separation process is further refined, and the effective trapping of oil is ensured.

[0013] Preferably, a guide hole for oil flow is arranged between the horizontal smoke hood and the vertical smoke hood, and a plurality of guide holes are arranged in the left-right direction. The guide hole guides the smooth flow of oil to the vertical smoke hood, and finally collects in the oil cup for centralized treatment.

[0014] Preferably, the bottom of the front panel is additionally provided with an inclined baffle, and oil blocking holes are uniformly distributed on the baffle; the bottom of the baffle is higher than the vertical smoke collecting cover. The baffle blocks the large oil droplets from directly falling into the cooking table, and keeps the air duct unobstructed; the baffle is designed ingeniously, and the bottom is slightly higher than the vertical smoke collecting cover, thereby forming an effective protective barrier.

[0015] After the above technical scheme is adopted, the beneficial effects of the oil extractor are as follows:

[0016] The oil extractor solves the technical problems of the unreasonable design of the side suction structure and the top suction structure of the traditional oil extractor, and the deficiencies of oil fume guiding, air flow distribution and oil collection. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of a novel air duct system of the oil extractor;

[0018] Figure 2 is Figure 1 a side view;

[0019] Figure 3 is Figure 1 a structural schematic view of the structure of D in

[0020] Figure 4 is a structural schematic view of the vertical smoke collecting cover, the horizontal smoke collecting cover and the oil cup;

[0021] Figure 5 is a structural schematic view of the vertical smoke collecting cover;

[0022] Figure 6 is Figure 4 a structural schematic view of D.

[0023] In the figure, 1 is a box body, 2 is a baffle, 3 is a side suction structure, 31 is a back plate, 32 is a vertical smoke collecting cover, 321 is a middle flow guide plate, 322 is an inclined top plate, 323 is a bottom flow guide plate, 324 is a side suction air inlet, 33 is a front panel, 331 is a baffle, 4 is a top suction structure, 41 is a horizontal smoke collecting cover, 411 is a top suction air inlet, 42 is a top suction oil screen, 43 is a flow guide hole, 5 is an oil cup, A is an oil passage, B is a side air inlet air duct, and C is a top air inlet air duct. DETAILED DESCRIPTION

[0024] The oil extractor will be further described below in combination with the drawings.

[0025] The orientation referred to in the specification is the normal working orientation of the novel air duct system of the range hood, and is not limited to the orientation during storage and transportation.

[0026] As Figure 1 Figure 6 As shown in the drawings, the novel air duct system of the range hood comprises a range hood box body 1 and a coaming 2 arranged above the box body 1. The box body 1 is provided with a wind cavity, and the coaming 2 is provided with a fan. The fan provides negative pressure for the wind cavity.

[0027] The bottom of the box body 1 is provided with a side suction structure 3 and a top suction structure 4. The side suction structure 3 comprises a back plate 31 fixed to the bottom of the box body 1 and arranged in sequence from back to front, a vertical fume collecting hood 32 and a front plate 33. An oil path channel A is formed between the back plate 31 and the vertical fume collecting hood 32. A side air inlet duct B with an open bottom is formed between the vertical fume collecting hood 32 and the front plate 33. The open bottom of the side air inlet duct B faces the direction of the gas stove, and the principle of "near-source capture" is used to maximize the oil fume capture efficiency. The top of the side air inlet duct B is connected to the internal wind cavity of the box body 1. The side suction structure 3 is composed of the back plate 31, the vertical fume collecting hood 32 and the front plate 33, which are tightly fixed to the bottom of the box body 1 to form an orderly arrangement from back to front. The oil path channel is ingeniously constructed between the back plate 31 and the vertical fume collecting hood 32 to ensure that the oil flows along a specific path, which not only increases the sound insulation effect but also improves the oil path and reduces the risk of dripping.

[0028] The vertical fume collecting hood 32 comprises a middle deflector 321 arranged in parallel with the front plate 33, an inclined top plate 322 located above the middle deflector 321 and inclined towards the front plate 33 and fixedly connected with the front plate 33, and a bottom deflector 323 located at the bottom of the middle deflector 321 and extending towards the bottom of the front plate 33. The bottom deflector 323 and the bottom of the front plate 33 form an open bottom. The inner corners between the middle deflector 321 and the inclined top plate 322 and between the middle deflector 321 and the bottom deflector 323 are obtuse angles and smoothly transitioned, so that a gentle airflow channel is formed between the vertical fume collecting hood 32 and the front plate 33. Through the improvement of the vertical fume collecting hood 32, the turbulence of the flue gas during the rising process is reduced, and the oil fume guiding property is improved. The side air inlet duct B adopts a streamline design to reduce airflow resistance, improve oil fume flow efficiency, reduce noise and create a quiet cooking environment.

[0029] The top of the vertical fume collecting hood 32 is provided with a side suction port 324, which is connected to the internal wind cavity of the box body 1. The side suction port 324 adopts a double-row design, and in this embodiment, one row is arranged on the inclined top plate 322 and the other row is arranged on the middle deflector 321. The smoke exhaust directions of the two rows of side suction ports 324 are different, forming intersecting suction force to ensure that the oil fume is sucked in all directions without dead angles. ​

[0030] The edge of the side air inlet 324 is additionally provided with a flange structure protruding towards the oil path channel A direction, and the flange structure effectively blocks the oil droplets from entering and invades, and maintains the side air inlet air duct B clean.

[0031] The top suction structure 4 comprises a horizontal smoke hood 41 fixed above the vertical smoke hood 32; the horizontal smoke hood 41 and the cabinet 1 form a top air inlet air duct C, and the top air inlet air duct C communicates with the air cavity inside the cabinet 1; the horizontal smoke hood 41 is in the form of an arc-shaped plate curved towards the gas stove direction, and a plurality of top suction air inlets 411 communicating with the outside and the top air inlet air duct C are uniformly arranged on the upper surface of the arc-shaped plate. The design of the arc-shaped plate not only is beautiful, but also enlarges the oil fume capturing area. The top suction air inlets 411 are uniformly distributed on both sides of the upper surface of the horizontal smoke hood 41, form a symmetrical layout, balance the suction force, and reduce the oil fume escape.

[0032] The horizontal smoke hood 41 is embedded with an inner top oil suction net 42, further refines the oil fume separation process, and ensures that the oil liquid is effectively intercepted. The horizontal smoke hood 41 is provided with a flow guide hole 43, the flow guide hole 43 guides the oil liquid to flow smoothly to the vertical smoke hood 32, and finally collects in the oil cup 5, so that the centralized treatment is facilitated.

[0033] In order to improve the experience of the user, the details are optimized. The bottom of the front panel 33 is additionally provided with an inclined baffle 331, and the baffle 331 is uniformly distributed with oil blocking holes; the baffle 331 not only blocks the large particle oil droplets from directly falling into the cooking bench, but also keeps the air duct unobstructed. The baffle 331 is designed cleverly, the bottom is slightly higher than the vertical smoke hood 32, and an effective protection barrier is formed.

[0034] The oil path channel A and the vertical smoke hood 32 structure are seamlessly connected, the oil liquid retention point is reduced, all the oil liquid is finally guided to the oil cup 5, the user is facilitated to clean regularly, and the kitchen environment is kept clean.

[0035] The novel air duct system of the range hood of the utility model, through the ingenious combination and detail optimization of the side suction and the top suction structure 4, not only significantly improves the oil fume suction rate, but also realizes the efficient separation of the oil fume and the convenient collection of the oil liquid. The innovative design effectively reduces the kitchen oil fume pollution, improves the comfort and safety of the cooking environment, and brings a new use experience to the modern family kitchen.

[0036] Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples, and the changes, modifications, additions or replacements made by the technical personnel in the technical field within the essential range of the utility model should also belong to the protection range of the utility model.

Claims

1. A novel air duct system for a range hood, comprising a range hood housing and a surrounding panel disposed above the housing; the bottom of the housing is provided with a side suction structure and a top suction structure; characterized in that: The side-suction structure includes a back panel, a vertical smoke collection hood, and a front panel, which are fixed to the bottom of the box and arranged sequentially from back to front. The back panel and the vertical smoke hood form an oil passage; an oil cup is installed at the bottom of the oil passage; the vertical smoke hood and the front panel form a side air intake duct with a bottom opening; the bottom opening of the side air intake duct faces the direction of the gas stove; the top of the side air intake duct connects to the internal air cavity of the housing.

2. The novel air duct system for a range hood according to claim 1, characterized in that: The vertical smoke hood includes a middle guide plate arranged parallel to the front panel, an inclined top plate located above the middle guide plate and inclined towards the front panel and fixedly connected to the front panel, and a bottom guide plate located at the bottom of the middle guide plate and extending to the bottom of the front panel; the bottom guide plate and the bottom of the front panel form a bottom opening. The inner corners between the middle guide plate and the inclined top plate, and between the middle guide plate and the bottom guide plate, are all obtuse angles with smooth transitions, thus forming a gentle airflow channel between the vertical smoke hood and the front panel.

3. The novel air duct system for a range hood according to claim 2, characterized in that: The top of the vertical smoke hood is provided with a side air intake, which is connected to the internal air chamber of the box.

4. The novel air duct system for a range hood according to claim 3, characterized in that: The side suction vents adopt a double-row design, with each row of side suction vents having a different exhaust direction, forming a cross suction force.

5. A novel air duct system for a range hood according to claim 4, characterized in that: The edge of the side air intake is provided with a flange structure that protrudes towards the oil passage.

6. The novel air duct system for a range hood according to claim 1, characterized in that: The top-suction structure includes a horizontal smoke collection hood fixed above the vertical smoke collection hood; the horizontal smoke collection hood and the housing form a top-inlet air duct, and the top-inlet air duct connects to the air cavity inside the housing; the horizontal smoke collection hood is an arc-shaped plate that bends towards the gas stove, and its upper surface is evenly provided with top-suction air inlets that connect the outside world and the top-inlet air duct.

7. A novel air duct system for a range hood according to claim 6, characterized in that: The top suction vents are evenly distributed on both sides of the upper surface of the horizontal smoke collection hood.

8. A novel air duct system for a range hood according to claim 7, characterized in that: The horizontal smoke collection hood has an embedded inner top oil absorption mesh.

9. A novel air duct system for a range hood according to claim 6, characterized in that: A guide hole for oil flow is provided between the horizontal smoke hood and the vertical smoke hood, and multiple guide holes are provided in the left and right directions.

10. A novel air duct system for a range hood according to claim 1, characterized in that: An inclined baffle is added to the bottom of the front panel, and oil-blocking holes are evenly distributed on the baffle; the bottom of the baffle is higher than the vertical smoke collection hood.

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