Cooker hood with air curtain
Patent Information
- Application Number
- CN202522267301.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-10-27
AI Technical Summary
[0003]如公开号为CN110631099A的中国发明专利即公开了一种风幕吸油烟机,该吸油烟机可以产生风幕,但缺乏有效的挡烟措施,部分油烟容易发生逃逸,吸油烟效果并不理想
[0014] This utility model has at least the following beneficial effects: The side suction part is provided with a first smoke inlet on the front side, and the top suction part is provided with a second smoke inlet on the bottom side. The first smoke inlet draws in the oil fumes, and some of the oil fumes that escape to the bottom of the top suction part are drawn in by the second smoke inlet. The airflow blown out by the air curtain outlet forms an airflow barrier, making it difficult for the oil fumes to escape from the front side. The smoke baffles on the left and right sides of the side suction part prevent the oil fumes from escaping to the sides, thereby greatly reducing the escape of oil fumes and improving the oil fume absorption effect.
Smart Images

Figure CN224757105U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of range hood technology, and in particular to a range hood with an air curtain. Background Technology
[0002] As one of the core appliances in modern kitchens, the main function of a range hood is to capture and remove cooking fumes during the cooking process, reducing the harm of these fumes to the indoor environment and human health. Some range hoods are equipped with an air curtain device, which creates an air curtain that isolates the user from the cooking fumes.
[0003] For example, Chinese invention patent CN110631099A discloses an air curtain range hood. This range hood can generate an air curtain, but it lacks effective smoke blocking measures. Some of the oil fumes can easily escape, and the smoke extraction effect is not ideal. Utility Model Content
[0004] This invention provides a range hood with an air curtain, which can reduce the escape of cooking fumes and improve the fume extraction effect.
[0005] To solve the above problems, the present invention adopts the following technical solution:
[0006] An embodiment of this utility model provides a range hood with an air curtain, including a smoke collection hood. The smoke collection hood includes a side suction part and a top suction part disposed on the top of the side suction part. A first smoke inlet is provided on the front side of the side suction part, and a second smoke inlet is provided on the bottom surface of the top suction part. An air curtain device is fixed inside the top suction part, and an air curtain outlet is provided on the bottom surface of the top suction part, which is located in front of the second smoke inlet. Smoke baffles are provided on both the left and right sides of the front side of the side suction part, and the smoke baffles are connected to the bottom of the top suction part.
[0007] In some embodiments, an air guide plate is provided inside the air outlet of the air curtain, and the air guide plate can be rotated to adjust the angle of the air curtain.
[0008] In some embodiments, the two ends of the air guide plate along its length are respectively connected to the two sidewall damping rotatable connections of the air curtain outlet.
[0009] In some embodiments, the bottom surface of the top suction part is provided with a groove, and the second smoke inlet is provided on the inner sidewall of the groove.
[0010] In some embodiments, the groove has two first inner sidewalls extending in the left-right direction and opposite to each other, and two second inner sidewalls extending in the front-back direction and opposite to each other, and a second smoke inlet is provided on both the two first inner sidewalls and the two second inner sidewalls.
[0011] In some embodiments, the distance between the two first inner sidewalls gradually decreases in the depth direction of the groove, and the distance between the two second inner sidewalls also gradually decreases.
[0012] In some embodiments, a light is provided on the bottom surface of the top suction portion.
[0013] In some embodiments, an oil cup is fixed to the bottom of the side suction section.
[0014] This utility model has at least the following beneficial effects: The side suction part is provided with a first smoke inlet on the front side, and the top suction part is provided with a second smoke inlet on the bottom side. The first smoke inlet draws in the oil fumes, and some of the oil fumes that escape to the bottom of the top suction part are drawn in by the second smoke inlet. The airflow blown out by the air curtain outlet forms an airflow barrier, making it difficult for the oil fumes to escape from the front side. The smoke baffles on the left and right sides of the side suction part prevent the oil fumes from escaping to the sides, thereby greatly reducing the escape of oil fumes and improving the oil fume absorption effect. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a range hood with an air curtain according to an embodiment of the present invention;
[0016] Figure 2 This is a cross-sectional schematic diagram of a range hood with an air curtain according to an embodiment of the present invention;
[0017] Figure 3 This is a cross-sectional schematic diagram of an air curtain device according to an embodiment of the present invention.
[0018] The attached figures are labeled as follows:
[0019] First smoke inlet 101, second smoke inlet 102, side suction part 110, top suction part 120, smoke baffle 130, groove 140, first inner side wall 141, second inner side wall 142, lighting lamp 150, oil cup 160.
[0020] Air curtain device 200, air curtain outlet 201, air guide plate 210. Detailed Implementation
[0021] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.
[0022] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0023] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intermediary element (e.g., the third element) between the element and the other element.
[0024] An embodiment of this utility model provides a range hood with an air curtain, such as... Figure 1-3 As shown, the system includes a fume hood, which comprises a side suction section 110 and a top suction section 120 disposed on top of the side suction section 110. The side suction section 110 is generally vertically arranged, and the top suction section 120 extends forward. A first smoke inlet 101 is provided on the front side of the side suction section 120, and a second smoke inlet 102 is provided on the bottom surface of the top suction section 120. Both the first smoke inlet 101 and the second smoke inlet 102 can draw in cooking fumes. Since the first smoke inlet 101 is closer to the stove, it draws in cooking fumes first, while the cooking fumes that escape to the bottom of the top suction section 120 are then drawn in by the second smoke inlet 102.
[0025] An air curtain device 200 is fixed inside the top suction section 120. An air curtain outlet 201 is provided on the bottom surface of the top suction section 120. The air curtain device 200 blows air outward from the air curtain outlet 201 to form an air curtain. The air curtain outlet 201 is located in front of the second smoke inlet 102 so as not to interfere with the second smoke inlet 102 drawing in oil fumes. Smoke baffles 130 are provided on both the left and right sides of the front side of the side suction section 110. The smoke baffles 130 are connected to the bottom of the top suction section 120.
[0026] In this embodiment, a first smoke inlet 101 is provided on the front side of the side suction part 120, and a second smoke inlet 102 is provided on the bottom surface of the top suction part 120, forming a double suction port for more efficient smoke extraction. The airflow blown out by the air curtain outlet 201 forms an airflow barrier, making it difficult for fumes to escape from the front. The smoke baffles 130 on the left and right sides of the side suction part 110 prevent fumes from escaping to the sides, thereby greatly reducing the escape of fumes and improving the overall smoke extraction effect of the range hood.
[0027] In some embodiments, an air guide plate 210 is provided inside the air curtain outlet 201, and the air guide plate 210 can be rotated to adjust the angle of the air curtain. The angle of the air curtain can be appropriately adjusted according to parameters such as the installation height of the range hood and the user's height. This can prevent the air curtain from blowing directly onto the face, improving the user's comfort during use, and also reducing airflow interference.
[0028] The air guide plate 210 can be connected to a drive device, which drives the air guide plate 210 to rotate, thereby automatically adjusting the air curtain angle. Alternatively, the user can manually rotate the air guide plate 210 to manually adjust the air curtain angle.
[0029] Furthermore, the two ends of the air guide plate 210 along its length are respectively connected to the two side walls of the air curtain outlet 201 with damping rotation. Users can manually rotate the air guide plate 210 to adjust the air curtain angle. Due to the damped rotation, once the air guide plate 210 rotates to the target angle, the damping force will keep it at the target angle. This structure is simpler and reduces manufacturing costs compared to adding a drive unit.
[0030] In some embodiments, the bottom surface of the top suction part 120 is provided with a groove 140, and the second smoke inlet 102 is provided on the inner sidewall of the groove 140. For the portion of oil fumes that escape upwards, they will enter the groove 140 after rising upwards. The sidewall of the groove 140 plays a role in blocking the diffusion of oil fumes. This portion of oil fumes then enters the smoke collection hood through the second smoke inlet 102, which can reduce the escape of oil fumes and improve the adsorption effect of oil fumes.
[0031] Furthermore, the groove 140 has two first inner sidewalls 141 extending in the left-right direction and facing each other, and two second inner sidewalls 142 extending in the front-back direction and facing each other, making the groove 140 generally a rectangular groove. A second smoke inlet 102 is provided on each of the two first inner sidewalls 141 and the two second inner sidewalls 142.
[0032] The structure of the groove 140 is roughly similar to the bottom shape of the top suction part 120. Compared with other shapes, this reduces the distance between the groove 140 and the side edge of the bottom surface of the top suction part 120, thereby maximizing the area of the opening at the bottom surface of the groove 140 so that more fumes can enter the groove 140. Simultaneously, each of the four side walls of the groove 140 is provided with a second smoke inlet 102. When fumes move towards any side wall, they can enter the fume hood through the second smoke inlet 102 on that side wall, further enhancing the adsorption effect of the fumes.
[0033] Furthermore, in the depth direction of the groove 140, the distance between the two first inner sidewalls 141 gradually decreases, and the distance between the two second inner sidewalls 142 also gradually decreases. This structure can relatively increase the area of the first inner sidewalls 141 and the second inner sidewalls 142, thereby increasing the number and / or area of the second smoke inlet 102 to increase the smoke intake and further improve the adsorption effect on oil fumes.
[0034] In some embodiments, a light 150 is provided on the bottom surface of the top suction part 120. The light 150 can emit light downwards to illuminate the stove area, making it convenient for users to use in environments with poor lighting conditions, such as at night.
[0035] The lighting 150 can be positioned between the air curtain outlet 201 and the recess 140 so as not to interfere with the setting of the air curtain and the recess 140.
[0036] In some embodiments, an oil cup 160 is fixed to the bottom of the side suction part 110. The oil cup 160 can catch the oil dripping from the smoke hood and prevent the oil from dripping directly onto the stove.
[0037] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.
Claims
1. A range hood with an air curtain, characterized in that: The device includes a smoke collection hood, which comprises a side suction section and a top suction section located on top of the side suction section. The front side of the side suction section has a first smoke inlet, and the bottom surface of the top suction section has a second smoke inlet. An air curtain device is fixed inside the top suction section, and the bottom surface of the top suction section has an air curtain outlet located in front of the second smoke inlet. Smoke baffles are provided on both the left and right sides of the front side of the side suction section, and the smoke baffles are connected to the bottom of the top suction section.
2. The range hood with an air curtain according to claim 1, characterized in that: An air guide plate is provided inside the air outlet of the air curtain, and the air guide plate can be rotated to adjust the angle of the air curtain.
3. The range hood with an air curtain according to claim 2, characterized in that: The two ends of the air guide plate along its length are respectively connected to the two side walls of the air curtain outlet with damping rotation.
4. The range hood with an air curtain according to claim 1, characterized in that: The bottom surface of the top suction part is provided with a groove, and the second smoke inlet is provided on the inner side wall of the groove.
5. The range hood with an air curtain according to claim 4, characterized in that: The groove has two first inner sidewalls extending in the left-right direction and facing each other, and two second inner sidewalls extending in the front-back direction and facing each other. A second smoke inlet is provided on each of the two first inner sidewalls and the two second inner sidewalls.
6. The range hood with an air curtain according to claim 5, characterized in that: In the depth direction of the groove, the distance between the two first inner sidewalls gradually decreases, and the distance between the two second inner sidewalls also gradually decreases.
7. The range hood with an air curtain according to any one of claims 1-6, characterized in that: A light is provided on the bottom surface of the top suction part.
8. The range hood with an air curtain according to any one of claims 1-6, characterized in that: An oil cup is fixed to the bottom of the side suction section.
Citation Information
Patent Citations
Air curtain extractor hood
CN110631099A