A side suction type range hood

Abstract

A side suction type range hood, which comprises a main machine, a smoke collecting cavity is arranged in the front end of the main machine, a condensing plate is further arranged in the smoke collecting cavity, a first air inlet ring is formed between the outer contour of the condensing plate and the inner wall of the smoke collecting cavity, a long strip-shaped air inlet groove is further arranged at the bottom of the condensing plate, an air inlet is further arranged at the middle part of the condensing plate, a wind deflector is further arranged on the outside of the air inlet, the wind deflector covers the front of the air inlet and leaves a gap between the wind deflector and the condensing plate, and a second air inlet ring is formed between the periphery of the wind deflector and the condensing plate. The range hood has the beneficial effects that the condensing plate is arranged in the smoke collecting cavity, and the condensing plate covers the opening of the smoke collecting cavity, so that the internal structure of the smoke collecting cavity and components such as a turbine fan can be cleverly covered from the front, and the problem that the oil filter screen arranged on the front of the traditional range hood seriously affects the appearance due to accumulated oil stains after being used for a period of time is avoided.

Description

Technical Field

[0001] This utility model relates to a range hood, specifically a side-suction range hood. Background Technology

[0002] As an indispensable appliance in modern kitchens, the main function of a range hood is to remove cooking fumes, steam, and harmful gases produced during cooking, thereby maintaining a clean and hygienic kitchen environment and protecting the health of users. With increasing awareness of quality of life and health, the performance requirements for range hoods are also rising.

[0003] However, existing range hoods generally have the following drawbacks: 1. Grease buildup on grease filters severely affects aesthetics and makes cleaning difficult: Traditional range hoods typically have grease filters (such as metal filters or oil-fume separators) at the air inlet or inside the smoke collection chamber to initially filter grease from cooking fumes and protect internal components like the fan. However, after a period of use, these filters accumulate a large amount of grease and dust, becoming not only filthy and severely impacting the overall appearance of the kitchen, but also making cleaning extremely tedious and difficult. Users often need to periodically disassemble the filters and use hot water, professional cleaners, or steel wool for extended soaking and scrubbing to barely remove stubborn grease. Failure to clean them promptly and effectively can also affect the range hood's extraction efficiency.

[0004] 2. Low grease separation efficiency leads to internal component contamination, performance degradation, and safety hazards: Many existing range hoods have low grease separation efficiency, failing to effectively separate and collect grease from cooking fumes. This results in a large amount of fine oil mist and grease entering key components such as the fan, turbine, duct, and motor inside the range hood, forming stubborn grease buildup on their surfaces. This internal grease buildup increases the fan's operating load, leading to decreased motor performance, which manifests as weakened suction, poor smoke extraction, increased noise, and even a shortened lifespan of the range hood. Furthermore, the large amount of accumulated grease inside is difficult to clean, potentially breeding bacteria and posing a fire hazard due to overheating or electrical sparks. Deep cleaning of internal components is usually complex and inconvenient, sometimes requiring professional assistance.

[0005] 3. Smoke capture efficiency needs improvement: Some existing range hoods may not be able to completely and effectively capture all the smoke during cooking, especially when faced with the large amount of diffused smoke generated by stir-frying in Chinese cooking. This results in some smoke and harmful substances not being discharged in time, but spreading into the kitchen and even the indoor space, affecting air quality and posing a potential health hazard to residents in the long run. Therefore, further improvements are necessary. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a device that is simple in structure, low in manufacturing cost, highly efficient in oil separation, and has a neat and beautiful appearance.

[0007] The purpose of this utility model is achieved in the following way: a side-suction range hood, which includes a main unit, a smoke collection chamber is recessed at the front end of the main unit, a turbine fan is installed in the smoke collection chamber, the air inlet of the turbine fan is connected to the smoke collection chamber, and the air outlet of the turbine fan is connected to the smoke pipe seat set on the top of the main unit. A condenser plate is also installed inside the smoke collection chamber. The condenser plate covers the opening of the smoke collection chamber, and its outer contour is larger than the opening of the smoke collection chamber. A first air inlet ring is formed between the outer contour of the condenser plate and the inner wall of the smoke collection chamber. The bottom of the condenser plate is also provided with a long strip-shaped air inlet slot; The condenser plate is provided with an air inlet in the middle, and an air guide shroud is installed on the outside of the air inlet. The air guide shroud covers the front of the air inlet and leaves a gap between it and the condenser plate, forming a second air inlet ring between the outer periphery of the air guide shroud and the condenser plate.

[0008] Furthermore, the air inlet slots are arranged in a horizontally distributed, elongated shape.

[0009] Furthermore: the air inlet is configured to penetrate the condenser plate.

[0010] Furthermore, the outer contour dimension of the air guide shroud is larger than the size of the air inlet, and the air guide shroud covers the entire front of the air inlet.

[0011] Furthermore, the back of the condenser plate is installed at the bottom of the smoke collection chamber via several main supports.

[0012] Furthermore, the back of the air guide shroud is mounted to the condenser plate via several brackets.

[0013] Furthermore, a guide edge is provided extending rearward from the edge of the air guide shroud.

[0014] Furthermore, a panel base extends forward from the top of the main unit, and the operation panel is installed directly in front of the panel base.

[0015] Furthermore, a lighting lamp is installed at the bottom of the panel base, inclined towards the smoke collection chamber.

[0016] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.

[0017] 2. The aforementioned range hood, by installing a condenser plate inside the smoke collection chamber, with the condenser plate covering the opening of the smoke collection chamber, cleverly conceals the internal structure of the smoke collection chamber and components such as the turbine fan when viewed from the front. This avoids the problem of traditional range hoods' front-mounted oil filters accumulating grease and severely affecting their appearance after a period of use. This design makes the range hood's appearance cleaner and more integrated, greatly enhancing the overall aesthetics of the product and allowing it to better blend into the modern kitchen environment.

[0018] 3. The aforementioned condenser plate not only serves an aesthetic purpose but, more importantly, also functions to condense grease. When cooking fumes containing oil mist come into contact with the relatively cool surface of the condenser plate, the oil mist quickly condenses, is absorbed, and collects on the plate surface. This condensed grease is easier to clean, thus reducing the direct entry of grease into the range hood's internal ductwork and fan system. This effectively reduces the degree of grease contamination on internal components (such as the turbine fan), extends the cleaning and maintenance cycle of internal components like the fan, and helps maintain the long-term suction and exhaust performance of the range hood.

[0019] 4. This range hood has an air inlet in the middle of the condenser plate, and an air guide hood is installed on the outside of the air inlet. The presence of the air guide hood can further conceal the air inlet, making the front appearance of the range hood flatter and simpler, avoiding the visual clutter that may be caused by traditional large-area mesh air inlets.

[0020] 5. The air inlet is located in the middle of the condenser plate, which is usually the area where cooking fumes are most concentrated and rise the fastest, allowing for more direct and efficient fume capture. Simultaneously, a guide hood covers the front of the air inlet and leaves a gap between it and the condenser plate, forming a second air intake ring. This structural design creates a unique airflow effect, guiding surrounding cooking fumes more smoothly and centrally into the air inlet, effectively preventing the diffusion and escape of fumes. Thus, while maintaining an aesthetically pleasing appearance, it significantly ensures and improves the range hood's smoke extraction efficiency.

[0021] 6. Compared to traditional oil filters that are difficult to disassemble and clean, the condenser plate and air guide hood of this invention, as the main oil-contact surfaces, are designed to make daily cleaning much simpler. Users can easily wipe the surface of the condenser plate and more easily clean the air guide hood and its surrounding area, thus greatly reducing the difficulty of cleaning the range hood and improving the user experience. Attached Figure Description

[0022] Figure 1 , 2 This is a rendering of the final assembly of this utility model.

[0023] Figure 3 This is a cross-sectional view of the structure of this utility model. Figure 4This is a structural assembly drawing of the present utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Main unit; 10. Sub-support; 11. Guide edge; 12. Panel base; 13. Operation panel; 14. Lighting lamp; 2. Smoke collection chamber; 3. Condensation plate; 4. First air inlet ring; 5. Air inlet slot; 6. Air inlet; 7. Air guide hood; 8. Second air inlet ring; 9. Main support. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings. A range hood includes a main unit 1, a smoke collection chamber 2 recessed at the front end of the main unit 1, a turbine fan installed in the smoke collection chamber 2, the air inlet of the turbine fan being connected to the smoke collection chamber 2, and the air outlet of the turbine fan being connected to the smoke pipe seat located on the top of the main unit 1; A condenser plate 3 is also installed inside the smoke collection chamber 2. The condenser plate 3 covers the opening of the smoke collection chamber 2, and its outer contour is larger than the opening of the smoke collection chamber 2. A first air inlet ring 4 is formed between the outer contour of the condenser plate 3 and the inner wall of the smoke collection chamber 2. The bottom of the condenser plate 3 is also provided with a long strip-shaped air inlet slot 5; The condenser plate 3 is also provided with an air inlet 6 in the middle. The air inlet 6 is also covered with an air guide 7. The air guide 7 covers the front of the air inlet 6 and leaves a gap between it and the condenser plate 3. A second air inlet ring 8 is formed between the outer periphery of the air guide 7 and the condenser plate 3.

[0026] In this embodiment: When the range hood is working, the turbine fan inside the main unit 1 rotates at high speed, generating a strong negative pressure in the smoke collection chamber 2. The air inlet of the turbine fan is connected to the internal space of the smoke collection chamber 2, thereby drawing air and fumes from the chamber into the fan. Subsequently, the fumes pass through the air outlet of the turbine fan, through the smoke pipe seat located at the top of the main unit 1, and finally through the exhaust pipe to the outside.

[0027] The condenser plate 3 is installed inside the opening of the smoke collection chamber 2. When viewed from the front of the range hood, it effectively shields the turbine fan and other components inside the smoke collection chamber 2. When hot oil fumes containing oil mist rise and come into contact with the relatively cool surface of the condenser plate 3, some of the oil mist condenses and adheres to this plate, forming liquid oil droplets.

[0028] Among them, the air intake of a range hood does not rely on a single path: First air intake ring 4: The outer contour of the condenser plate 3 is larger than the opening of the smoke collection chamber 2. This means that the condenser plate 3 does not completely block the opening of the smoke collection chamber, but forms an annular channel between its outer edge and the inner wall of the smoke collection chamber 2, which is the first air intake ring 4. Through this annular channel, some of the oil fumes that diffuse in all directions can be drawn in.

[0029] Long strip air inlet 5: The long strip air inlet 5 set at the bottom of the condenser plate 3 provides another air inlet channel, mainly used to capture oil fumes below the cooking area or diffuse to a lower position.

[0030] Central airflow guiding system: An air inlet 6 is located in the center of the condenser plate 3, which is the main, concentrated smoke extraction channel. An air guide hood 7 is installed outside this air inlet 6. The air guide hood 7 covers the front of the air inlet 6, but leaves a certain gap between it and the condenser plate 3. This gap forms a second air intake ring 8 between the outer perimeter of the air guide hood 7 and the condenser plate 3. This structure ensures that the fumes entering the air inlet 6 must first be guided and accelerated by the second air intake ring 8, forming a more concentrated and efficient airflow.

[0031] In one embodiment, the air inlet slot 5 is arranged in a horizontally distributed, elongated shape. In this embodiment, the horizontally distributed, elongated air inlet slot 5 provides a wider horizontal air intake area, which can better cover the horizontally diffused fumes generated in the cooking area. This shape and distribution optimize the capture effect of diffused fumes, especially for cooking environments with wide stoves where fumes easily diffuse horizontally. It can more effectively draw in fumes from the bottom and edges, improving the overall capture efficiency. At the same time, its simple shape also meets the aesthetic requirements of the whole machine.

[0032] In one embodiment, the air inlet 6 is disposed through the condenser plate 3.

[0033] In one embodiment, the outer contour of the air guide hood 7 is larger than the size of the air inlet 6, and the air guide hood 7 completely covers the front of the air inlet 6. This means that cooking fumes cannot directly enter the air inlet 6 in a straight line, but must first bypass the edge of the air guide hood 7, pass through the second air inlet ring 8, and then turn to enter the air inlet 6. This design forcibly changes the airflow direction and creates local acceleration at the second air inlet ring 8, similar to the Venturi effect, which can more effectively guide and concentrate the cooking fumes. This size relationship and coverage method maximize the airflow guiding effect of the air guide hood 7, forcing the cooking fumes to form a more concentrated airflow and improving the efficiency of fume capture. At the same time, the air guide hood 7 completely covers the air inlet 6, visually hiding the internal structure, making the front of the range hood flatter and simpler, and improving the overall aesthetics of the product.

[0034] In one embodiment, the back of the condenser plate 3 is mounted to the bottom of the smoke collection chamber 2 via several main supports 9. These main supports 9 securely mount the back of the condenser plate 3 to the bottom of the smoke collection chamber 2. These supports provide stable and reliable support for the condenser plate 3, ensuring that the condenser plate 3 remains stable during range hood operation, preventing shaking or detachment, thus improving the product's structural stability and safety.

[0035] In one embodiment, the back of the air guide shroud 7 is mounted to the condenser plate 3 via several secondary brackets 10. The air guide shroud 7 is fixed to the condenser plate 3 by the secondary brackets 10. These brackets ensure the precise position of the air guide shroud 7 relative to the air inlet 6 and the condenser plate 3, thereby maintaining the preset gap and shape of the second air inlet ring 8. This ensures the accuracy of the gap between the air guide shroud 7 and the condenser plate 3, ensuring that the second air inlet ring 8 can stably and effectively perform its function of guiding and accelerating airflow, thereby optimizing the oil fume collection efficiency.

[0036] In one embodiment, a guide edge 11 extends rearward from the edge of the air guide hood 7. When the fumes are guided through the second air inlet ring 8, this rearwardly extending guide edge 11 can more smoothly guide the airflow into the air inlet 6, reducing airflow turbulence and eddy current generation. This further optimizes the airflow guidance, making the path of the fumes into the air inlet 6 smoother and more efficient, avoiding energy loss and efficiency reduction at airflow bends, thereby improving the capture efficiency of the central air intake system.

[0037] In one embodiment, a panel base 12 extends forward from the top of the main unit 1, and an operation panel 13 is mounted directly in front of the panel base 12. This layout places the operation panel 13 in a position that is easy for the user to observe and operate.

[0038] In one embodiment, a lighting lamp 14 is inclined at the bottom of the panel base 12 towards the smoke collection chamber 2. This lighting lamp 14 provides ample illumination to the stove area during operation. It provides targeted lighting for the cooking area, solving the problems of blind spots or insufficient light in traditional range hoods, making it easier for users to observe the cooking process and improving the cooking experience and safety. The inclined light direction is also more reasonable, avoiding glare.

[0039] In summary, the range hood provided by this utility model has the core working principle of combining a multi-layered, optimized and aesthetically pleasing air intake structure with a highly efficient oil fume separation mechanism to overcome the problems of insufficient oil fume capture efficiency, difficult cleaning, and poor aesthetics in the prior art.

[0040] Its complete working principle can be summarized as follows: Start-up and basic suction and exhaust: When the range hood is started, the turbine fan installed in the smoke collection chamber 2 inside the main unit 1 begins to run at high speed, generating a strong negative pressure inside the entire smoke collection chamber 2, forming a suction force. The air inlet of the fan is connected to the smoke collection chamber 2, and the air outlet is connected to the smoke pipe seat on the top of the main unit 1, which exhausts the sucked-in air and fumes outdoors through the pipe.

[0041] Front Aesthetics and Initial Condensation Separation: A condenser plate 3 is installed in the most prominent position on the front of the range hood. This condenser plate 3 cleverly covers the opening of the smoke collection chamber 2, effectively concealing internal components such as the fan, significantly improving the product's cleanliness and aesthetics, and avoiding the visual pollution caused by traditional oil filters. More importantly, as a relatively low-temperature flat surface, the condenser plate 3 allows for initial condensation of oil mist on its surface during the rising of hot fumes. Some oil contamination condenses into a liquid state and adheres to the plate, thereby reducing the total amount of oil contamination entering the fan system and laying the foundation for subsequent cleaning and maintenance.

[0042] Multi-path high-efficiency fume capture: To comprehensively capture fumes from different locations and in different diffusion states, this range hood is designed with three main air intake paths: Annular peripheral air intake: The outer contour of the first air intake ring 4 and the condenser plate 3 is slightly larger than the opening of the smoke collection chamber 2, forming a first air intake ring 4 between the outer edge of the plate and the inside of the chamber. This allows cooking fumes that diffuse in all directions, especially those in the edge areas, to be effectively drawn in through this annular channel.

[0043] Bottom horizontal air intake: The long strip-shaped air intake slot 5, the long strip-shaped, horizontally distributed elongated air intake slot 5 set at the bottom of the condenser plate 3, provides supplementary capture of oil fumes below or at lower positions of the stove, and its horizontal width helps to cover a wider cooking area.

[0044] Central airflow acceleration: Inlet 6, air guide hood 7, second air intake ring 8, guide edge 11: This is the main path for capturing oil fumes. An air inlet 6 penetrating the condenser plate 3 is located in the center, with an air guide hood 7 installed directly in front of it. The air guide hood 7 is larger than the air inlet 6 and completely covers it, preventing oil fumes from entering directly. Instead, the oil fumes must first pass through the second air intake ring 8 between the air guide hood 7 and the condenser plate 3. This annular channel forces the airflow to change direction and accelerate. Furthermore, the guide edge 11 extending rearward from the edge of the air guide hood 7 further optimizes the airflow path, allowing the oil fumes to be drawn into the air inlet 6 more smoothly, concentratedly, and efficiently, and delivered to the smoke collection chamber 2.

[0045] Convenient operation and auxiliary functions: An operation panel 13 is installed on the panel base 12 extending forward from the top of the main unit 1, which allows users to easily set various functions. A light 14 is also inclined at the bottom of the panel base 12 to provide ample and focused lighting for the cooking area.

[0046] Stable structure and easy maintenance: The condenser plate 3 is securely installed at the bottom of the smoke collection chamber 2 via the main bracket 9, while the air guide shroud 7 is precisely fixed to the condenser plate 3 via the secondary bracket 10, ensuring the stability and precise fit of each key component. This modular and relatively independent structural design also facilitates daily oil stain cleaning and maintenance.

[0047] In summary, this range hood, through its innovative appearance design, multi-way air intake combined with central airflow for accelerated fume capture, and the preliminary oil fume separation function of the condenser plate, effectively improves the efficiency of oil fume capture while significantly enhancing the overall aesthetics of the product and simplifying cleaning and maintenance. It provides users with a more efficient, aesthetically pleasing, convenient, and healthier kitchen environment solution.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A side-suction range hood, characterized in that: It includes a main unit (1), a smoke collection chamber (2) is recessed at the front end of the main unit (1), a turbine fan is installed in the smoke collection chamber (2), the air inlet of the turbine fan is connected to the smoke collection chamber (2), and the air outlet of the turbine fan is connected to the smoke pipe seat set on the top of the main unit (1). A condenser plate (3) is also installed inside the smoke collection chamber (2). The condenser plate (3) covers the opening of the smoke collection chamber (2), and its outer contour is larger than the opening of the smoke collection chamber (2). A first air inlet ring (4) is formed between the outer contour of the condenser plate (3) and the inner wall of the smoke collection chamber (2). The bottom of the condenser plate (3) is also provided with a long strip-shaped air inlet groove (5); The condenser plate (3) is also provided with an air inlet (6) in the middle. The air inlet (6) is also covered with a guide hood (7). The guide hood (7) covers the front of the air inlet (6) and leaves a gap between it and the condenser plate (3). A second air inlet ring (8) is formed between the guide hood (7) and the condenser plate (3).

2. The side-suction range hood according to claim 1, characterized in that: The air inlet slot (5) is arranged in a horizontally distributed, elongated shape.

3. A side-suction range hood according to claim 1, characterized in that: The air inlet (6) is installed through the condenser plate (3).

4. A side-suction range hood according to claim 3, characterized in that: The outer contour of the air guide shroud (7) is larger than that of the air inlet (6), and the air guide shroud (7) covers the front of the air inlet (6).

5. A side-suction range hood according to claim 1, characterized in that: The back of the condenser plate (3) is installed at the bottom of the smoke collection chamber (2) via several main supports (9).

6. A side-suction range hood according to claim 1, characterized in that: The back of the air guide shroud (7) is mounted to the condenser plate (3) via several brackets (10).

7. A side-suction range hood according to claim 1, characterized in that: The air guide shroud (7) has a rearward-extending guide edge (11) at its edge.

8. A side-suction range hood according to claim 1, characterized in that: The host (1) also has a panel base (12) extending forward from the top, and the operation panel (13) is installed in front of the panel base (12).

9. A side-suction range hood according to claim 8, characterized in that: The bottom of the panel base (12) is inclined towards the smoke collection chamber (2) and a lighting lamp (14) is provided.

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