Range hood
Patent Information
- Application Number
- CN202521974608.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-09-12
AI Technical Summary
[0014]本申请的有益效果是：区别于现有技术的情况，第一出风口的出风能够起到将烹饪过程中产生的烟气通过射流引射和侧向引射的方式向后侧引流。出风装置通过第一进风口进风从而提供第一出风口的出风。第一进风口设置于底板上，并且设置于集烟口在第三方向上的其中一侧。出风装置在工作时能够从第一进风口进风，第一进风口的进风能够促进烟气向靠近第一进风口的方向偏移，从而减少的烟气从第一进风口在第三方向上相对的一侧跑烟。
Smart Images
Figure CN224887135U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of kitchen appliance technology, and in particular to range hoods. Background Technology
[0002] In modern kitchens, range hoods effectively remove cooking fumes, ensuring a clean and healthy environment. With the continuous development of range hood technology, higher demands are being placed on their performance. The smoke extraction efficiency is a key performance indicator, and improving this efficiency requires ongoing research and innovation. Utility Model Content
[0003] The embodiments of this application provide a range hood that can improve the smoke extraction effect of the range hood.
[0004] This application provides a smoke hood. The smoke hood has a front side and a rear side opposite to it in a first direction. The smoke hood includes a frame, a smoke collection assembly, and an air outlet device. The smoke collection assembly is mounted on the frame, and the frame and the smoke collection assembly are arranged in a second direction. The smoke collection assembly has a smoke collection port for drawing in smoke, and the first and second directions intersect. The air outlet device is mounted on the front side of the smoke collection assembly and has a first air outlet. The smoke collection assembly includes a base plate, the smoke collection port is disposed on the base plate, and a first air inlet is also disposed on the base plate. The first air inlet communicates with the air outlet device and is disposed on at least one side of the smoke collection port in a third direction, which is perpendicular to the first and second directions.
[0005] Optionally, the smoke collection assembly has an air inlet channel, one end of which is connected to the air outlet device, and the other end of which is connected to the first air inlet.
[0006] Optionally, the range hood also includes a top plate, with the top plate and bottom plate spaced apart. A fan is installed between the top plate and the bottom plate. The fan has a second air inlet and a second air outlet. The second air inlet is connected to the first air inlet. The bottom plate and the top plate form an air intake channel.
[0007] Optionally, the range hood also includes a top plate, with the top plate and bottom plate spaced apart. A channel is provided between the top plate and the bottom plate. The channel has an air inlet channel, an air inlet communicating with the first air inlet, and an outlet through which the air supply and exhaust device passes. The fan is located inside the channel.
[0008] Optionally, a filter is installed in the air inlet duct.
[0009] Optionally, the end of the base plate closer to the front is further away from the frame in the second direction than the end of the base plate closer to the rear, and the end face of the fan closer to the base plate is set parallel to the base plate.
[0010] Optionally, the size of the first air inlet in the first direction is larger than the size of the first air inlet in the third direction.
[0011] Optionally, the first air inlet is disposed on the portion of the base plate near the rear side in the first direction, and the distance between the first air inlet and the rear-facing side of the smoke collection assembly is less than the distance between the first air inlet and the front-facing side of the smoke collection assembly.
[0012] Optionally, on the third direction, a first air inlet is provided on both sides of the smoke collection port, and two air outlets are provided, each corresponding to one of the two first air inlets. When one air outlet is working, the other air outlet is not working.
[0013] Optionally, the distance between the front side of the frame and the front side of the smoke collection assembly in the first direction is less than or equal to 15 mm; the distance between the front side of the smoke collection assembly and the rear side of the smoke collection assembly is less than or equal to 370 mm and greater than or equal to 300 mm.
[0014] The beneficial effects of this application are as follows: Unlike existing technologies, the air outlet of the first air outlet can guide the fumes generated during cooking to the rearward side through jet injection and lateral injection. The air outlet device provides airflow through the first air inlet. The first air inlet is located on the base plate and on one side of the smoke collection port facing the third direction. When the air outlet device is in operation, it can draw air in through the first air inlet, which promotes the deflection of fumes towards the first air inlet, thereby reducing the escape of fumes from the opposite side of the first air inlet facing the third direction. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the smoke machine of this application;
[0016] Figure 2 yes Figure 1 The diagram shows the structure of the range hood from another angle.
[0017] Figure 3 yes Figure 2 The diagram shows a cross-sectional view of the range hood at the first air inlet.
[0018] Figure 4 yes Figure 2 The image shows a bottom view of the range hood.
[0019] Figure 5 yes Figure 4 The diagram shows the internal structure of the range hood. Detailed Implementation
[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0021] Combination Figure 1 and Figure 2 This application provides a smoke hood 1. The smoke hood 1 includes a frame 10 and a smoke collection assembly 20, with a smoke collection port 211 provided on the smoke collection assembly 20. The smoke collection assembly 20 is mounted on the frame 10, and the smoke hood 1 can be mounted on a wall or other installation location via the frame 10. The smoke hood 1 has a mounting surface; for example, if the smoke hood 1 is mounted on a wall, the surface of the smoke hood 1 that abuts against the wall is the mounting surface of the smoke hood 1. The frame 10 is provided with an exhaust port (not shown), which can be connected to an external flue via a pipe. A volute (not shown) is also provided inside the frame 10, and a centrifugal impeller (not shown) is provided inside the volute. The volute can communicate with the interior of the smoke collection assembly 20, and the convection generated by the rotation of the centrifugal impeller can drive the gas inside the smoke collection assembly 20 to the exhaust port for discharge. The smoke collection assembly 20 is mounted on the frame 10, and the smoke collection assembly 20 can gather and collect the smoke, which is then discharged through the frame 10.
[0022] It should be noted that, for ease of description, this application uses a first direction (illustrated by X in the figures), a second direction (illustrated by Y in the figures), and a third direction (illustrated by Z in the figures) to exemplarily describe the relative positional relationships of the components. Specifically, the range hood 1 has a front side closer to the user and a rear side opposite to it in the first direction. In a kitchen setting, the front side faces the user, and the rear side faces the wall. The second direction is the arrangement direction of the frame 10 and the smoke collection assembly 20. The third direction is perpendicular to the first and second directions. In some embodiments, the first direction is a front-to-back direction, the second direction is a vertical direction, and the third direction is a left-to-right direction from the user's perspective. The first and second directions intersect. Optionally, the first, second, and third directions are perpendicular to each other.
[0023] In some embodiments, the smoke hood 1 includes a front plate 23 and a rear plate spaced apart in a first direction, and side plates spaced apart in a third direction. The smoke hood 1 also includes a base plate 21, with the front plate 23, rear plate, and side plates surrounding the circumference of the base plate 21, and a smoke collection port 211 formed on the base plate 21. In a second direction, the end of the base plate 21 near the front is further away from the frame 10 than the end of the base plate 21 near the rear. In other words, in the smoke hood 1 provided in this application, the base plate 21 is inverted with a lower front and a higher rear. By inverting the base plate 21 with a lower front and a higher rear, the pressure radiation direction of the smoke hood 1 can be optimized, the negative pressure area can be increased, and the smoke extraction effect can be improved. Optionally, the distance between the base plate 21 and the frame 10 gradually decreases in the direction from the front to the rear.
[0024] In some embodiments, combined with Figure 2 The smoke collection assembly 20 also includes a front plate 23 connected to the front side of the top plate 22 and the bottom plate 21, a rear plate connected to the rear side of the top plate 22 and the bottom plate 21, and two side plates (not labeled) arranged opposite to each other, which are respectively connected to the front plate 23 and the rear plate.
[0025] In some embodiments, the distance between the front side of the frame 10 and the front side of the front panel 23 in the first direction is less than or equal to 15 mm. In this way, the front side of the smoke collection assembly 20 protrudes less from the frame 10, making it easier to align the front side of the range hood 1 flush with the front side of the cabinet, or to directly embed the range hood 1 within the cabinet without exposing its front side to the user's view. Through these technical means, the range hood 1 can be installed concealed at all times, which is beneficial to the aesthetics of the kitchen.
[0026] In some embodiments, the distance between the front panel 23 and the rear panel is less than or equal to 370 mm and greater than or equal to 300 mm. In this way, the smoke collection assembly 20 can have a smaller size, so that when the smoke collection assembly 20 is fitted with the wall on the rear side, the front side protrudes less from the cabinet, which is beneficial for achieving a flush installation of the front side of the range hood 1 with the cabinet or a fully concealed installation.
[0027] Combination Figures 2 to 4This application provides a range hood 1. The range hood 1 also includes an air outlet device 24. The air outlet device 24 is installed on the front side of the smoke collection assembly 20 and has a first air outlet 242. The air outlet device 24 can guide the smoke generated during cooking to the rear by venting air, so that the smoke can be concentrated and discharged from the smoke collection port 211. Specifically, the air outlet device 24 can interfere with the flow field by different air outlet directions and air volume, thereby promoting the rearward movement of smoke. In general, the air outlet device 24 can interfere with the flow direction of smoke in the following ways: 1. Jet guidance: When a high-speed air jet flows in the smoke collection chamber, it will cause the adjacent airflow to move along the jet direction through shear force, thereby achieving a guiding effect. Therefore, when the air outlet direction of the air outlet device 24 has a component towards the rear, it can guide the smoke to move backward. 2. Lateral guidance: When there is wall-attached airflow near the wall, it will cause the smoke to deflect in the direction of the airflow, thereby optimizing the front smoke extraction effect.
[0028] The smoke collection assembly 20 includes a base plate 21, with a smoke collection port 211 disposed on the base plate 21. Smoke can be gathered towards the smoke collection port 211 by the smoke collection assembly 20, and then discharged through the smoke collection assembly 20 and the frame 10. A first air inlet 212 is also provided on the base plate 21, which is connected to an air outlet 24. The air outlet 24 can receive air through the first air inlet 212 and discharge air through the first air outlet 242. The first air inlet 212 is located on at least one side of the smoke collection port 211 in a third-direction orientation. The air outlet 242 can guide the smoke generated during cooking to the rearward side through jet injection and lateral injection. The air outlet 24 receives air through the first air inlet 212 to provide air discharge through the first air outlet 242. The first air inlet 212 is located on the base plate 21 and on one side of the smoke collection port 211 in a third-direction orientation. The air intake of the first air inlet 212 can promote the deflection of the flue gas towards the direction closer to the first air inlet 212, thereby reducing the amount of flue gas escaping from the first air inlet 212 to the opposite side facing upwards.
[0029] In some embodiments, the smoke collection assembly 20 has an air inlet channel 251 (combined with...) Figure 3 One end of the air inlet channel 251 is connected to the air outlet device 24. The other end of the air inlet channel 251 is connected to the first air inlet 212. By setting the air inlet channel 251, the first air inlet 212 can be connected to the air outlet device 24. The setting of the air inlet channel 251 can seal the part between the air inlet of the air outlet device 24 and the first air inlet 212, thereby reducing the impact of the air inlet of the air inlet device on the smoke collection port 211 from inside the smoke machine 1.
[0030] In some embodiments, the range hood 1 further includes a top plate 22, with the top plate 22 and the bottom plate 21 spaced apart, and a fan 245 disposed between the top plate 22 and the bottom plate 21. The fan 245 can agitate the air, allowing airflow to enter from the first air inlet 212 and then exit from the first air outlet 242. The fan 245 has a second air inlet and a second air outlet. The normal direction of the second air inlet and the direction of the second air outlet can be parallel or perpendicular, without specific limitation. The second air inlet communicates with the first air inlet 212, allowing airflow to enter the second air inlet from the first air inlet 212 along the air inlet channel 251, and then exit from the second air outlet, before being discharged from the first air outlet 242 through a pipe or air outlet component. Optionally, the bottom plate 21 and the top plate 22 form the air inlet channel 251, which reduces the use of additional parts and lowers manufacturing costs and complexity.
[0031] In some embodiments, the range hood 1 further includes a top plate 22. The top plate 22 and the bottom plate 21 are spaced apart, and a channel member 25 is provided between the top plate 22 and the bottom plate 21. The channel member 25 has an air inlet channel 251. The channel member 25 has an air inlet communicating with the first air inlet 212 and an outlet through which the air outlet device 24 passes. The fan 245 is disposed within the channel member 25. By providing the channel member 25 between the top plate 22 and the bottom plate 21, the fan 245 can be accommodated within the channel member 25. The channel member 25 forms an air inlet channel 251 connecting the second air inlet and the first air inlet 212. The channel member 25 also serves to accommodate and place the fan 245. The air outlet of the fan 245 can be vented through the channel member 25 via a pipe or an air outlet component. In summary, by providing the channel member 25, the air intake and exhaust processes of the air outlet device 24 and the accommodation of the fan 245 can all be achieved within the channel member 25. The channel component 25 can accommodate the air intake and exhaust processes of the air outlet device 24 and the fan 245 within the space between the top plate 22 and the bottom plate 21, thereby reducing the impact of the air intake and exhaust of the air outlet device 24 on other processes inside the smoke collection assembly 20, such as the smoke collection port 211.
[0032] In some embodiments, a filter element (not shown) is provided in the air inlet channel 251. Since the first air inlet 212 is located on the base plate 21, during the smoke collection process, smoke may still enter the first air inlet 212 during its ascent. The first air inlet 212 is mainly used in conjunction with the air outlet device 24 to achieve the aforementioned diversion and smoke escape prevention effects. Since smoke entering the first air inlet 212 cannot be effectively discharged, there is a potential risk of smoke contamination in the first air inlet 212. By providing a filter element in the air inlet channel 251, the smoke in the airflow entering the first air inlet 212 can be filtered, thereby reducing the potential risk of smoke contamination. Optionally, a filter element is provided in the first air inlet 212. By providing the filter element in the first air inlet 212, oil droplets generated by smoke contamination can remain on the lower side of the base plate 21, allowing them to flow down the base plate 21 and be collected by the oil cup. Based on the above embodiments, the filter element can be a filter screen, a baffle plate with multiple bends, or a filter element, etc., and no specific limitation is made here.
[0033] In some embodiments, the end of the base plate 21 near the front is further away from the frame 10 in a second direction than the end of the base plate 21 near the rear. In other words, in the range hood 1 provided in this application, the base plate 21 is inverted with a lower front and a higher rear. By inverting the base plate 21 with a lower front and a higher rear, the pressure radiation direction of the range hood 1 can be optimized, the negative pressure area can be increased, and the smoke extraction effect can be improved. Optionally, the distance between the base plate 21 and the frame 10 gradually decreases in the direction from the front to the rear. Further, the end face of the fan 245 near the base plate 21 is arranged parallel to the base plate 21. In this way, the airflow reversal angle of the fan 245 during the airflow process from the second air outlet to the first air outlet 242 can be reduced, thereby reducing the airflow power loss and noise caused by airflow reversal. Optionally, the entire fan 245 is inclined downward in the direction from the rear to the front.
[0034] In some embodiments, the dimension of the first air inlet 212 in the first direction is larger than its dimension in the third direction. In the embodiments of this application, by setting the first air inlet 212 to guide the smoke in the third direction, the escape of smoke from the side opposite the first air inlet 212 is reduced. Furthermore, by setting the dimension of the first air inlet 212 in the first direction to be larger than the dimension of the first seal in the third direction, the first air inlet 212 can have a longer length in the first direction while maintaining the same area. This configuration allows the first air inlet 212 to cover a larger area of the smoke collection port 211 in the third direction while maintaining the same area, thereby attracting a larger area of smoke towards the first air inlet 212, further reducing the escape of smoke from the side opposite the first air inlet 212.
[0035] In some embodiments, the first air inlet 212 is disposed on the base plate 21 near the rear side in a first direction. The distance between the first air inlet 212 and the rearward side of the smoke collection assembly 20 is less than the distance between the first air inlet 212 and the frontward side of the smoke collection assembly 20. By disposing the first air inlet 212 near the rear side of the base plate 21, the first air inlet 212 can be located at a corner of the base plate 21. The amount of smoke at the corner of the base plate 21 is less than that at the front and middle of the base plate 21. In this way, the pollution of the first air inlet 212 and the exhaust device 24 by smoke can be effectively reduced.
[0036] In some embodiments, from a third-party perspective, first air inlets 212 are respectively provided on both sides of the smoke collection port 211, and two air outlet devices 24 are provided, each corresponding to one of the two first air inlets 212. When one air outlet device 24 is working, the other air outlet device 24 is not working. When both air outlet devices 24 are working, the two first air inlets 212 will generate forces that attract smoke outwards, which will actually affect the convergence of smoke towards the smoke collection port 211. The stove used by the user during cooking can be a double-burner stove. When the user uses only one burner, the corresponding air outlet device 24 can be turned on. The air outlets 24 and the first air inlets 212 can effectively reduce smoke escape from the range hood 1 in the above manner.
[0037] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.
Claims
1. A range hood, characterized in that, The range hood has a front side and an opposite rear side in a first direction, including: frame; A smoke collection assembly is mounted on the frame, the frame and the smoke collection assembly are arranged in a second direction, the smoke collection assembly has a smoke collection port for drawing in smoke, and the first direction and the second direction intersect. An air outlet device is installed on the front side of the smoke collection assembly, and the air outlet device has a first air outlet; The smoke collection assembly includes a base plate, a smoke collection port is disposed on the base plate, and a first air inlet is also disposed on the base plate. The first air inlet is connected to the air outlet device and is disposed on at least one side of the smoke collection port in a third direction, which is perpendicular to the first direction and the second direction.
2. The range hood according to claim 1, characterized in that: The smoke collection assembly has an air inlet channel, one end of which is connected to the air outlet device, and the other end of which is connected to the first air inlet.
3. The range hood according to claim 2, characterized in that: The range hood also includes a top plate, and the top plate and the bottom plate are spaced apart. A fan is provided between the top plate and the bottom plate. The fan has a second air inlet and a second air outlet. The second air inlet is connected to the first air inlet. The bottom plate and the top plate form the air inlet channel.
4. The range hood according to claim 2, characterized in that: The smoke hood also includes a top plate, and the top plate and the bottom plate are spaced apart. A channel component is provided between the top plate and the bottom plate. The channel component has the air inlet channel, an air inlet communicating with the first air inlet, and an outlet through which the air outlet device passes. The fan is disposed within the channel component.
5. The range hood according to claim 3 or 4, characterized in that: A filter element is installed inside the air inlet channel.
6. The range hood according to claim 3 or 4, characterized in that: The end of the base plate near the front side is further away from the frame in the second direction than the end of the base plate near the rear side, and the end face of the fan near the base plate is arranged parallel to the base plate.
7. The range hood according to claim 1, characterized in that: The size of the first air inlet in the first direction is greater than the size of the first air inlet in the third direction.
8. The range hood according to claim 1, characterized in that: The first air inlet is disposed on the portion of the base plate near the rear side in a first direction, and the distance between the first air inlet and the rear-facing side of the smoke collection assembly is less than the distance between the first air inlet and the front-facing side of the smoke collection assembly.
9. The range hood according to claim 1, characterized in that: In the third direction, the first air inlet is provided on both sides of the smoke collection port, and there are two air outlets, which are respectively provided corresponding to the two first air inlets. When the air outlet on one side is working, the air outlet on the other side is not working.
10. The range hood according to claim 1, characterized in that: The distance between the front-facing side of the frame and the front-facing side of the smoke collection assembly in the first direction is less than or equal to 15 mm; the distance between the front-facing side of the smoke collection assembly and the rear-facing side of the smoke collection assembly is less than or equal to 370 mm and greater than or equal to 300 mm.