Air suction structure and range hood

Abstract

The utility model discloses a kind of suction port structure and range hood, suction port structure includes suction panel, and suction panel is equipped with suction port;It further includes the first oil guide groove being located in the back side of suction panel and above suction port, the second oil guide groove being located in the back side of suction panel and below suction port and the air deflector below suction port, the first oil guide groove extends to the two sides of upper edge of suction port, the second oil guide groove extends to the two sides of lower edge of suction port, the height of the end of air deflector close to suction port is lower than the height of the end of air deflector away from suction port.The suction port structure of the utility model, the first oil guide groove can prevent oil liquid accumulated above suction port from overflowing suction port.The second oil guide groove can receive oil liquid left from air deflector, avoid oil liquid from air deflector directly flow to suction port, and oil liquid of second oil guide groove can also continue to flow downward from the two ends of second oil guide groove, avoid oil liquid accumulated below suction port, to reduce the risk of oil liquid overflowing suction port.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, specifically to an air intake structure and a range hood. Background Technology

[0002] A range hood is a kitchen appliance used to purify the kitchen environment by removing fumes and odors produced during cooking. Existing range hoods consist of a fan, exhaust duct, and fume filtration system. They are typically installed above the kitchen stove, and their main function is to quickly extract and exhaust harmful fumes from combustion and cooking, keeping indoor air fresh. They also condense and collect the fumes to reduce harm to the kitchen environment and human health. Currently, when using a range hood, the fumes are drawn in, and they easily condense into oil droplets inside. These droplets flow along the inner wall of the range hood, and existing models cannot effectively guide this condensed oil, causing it to accumulate around the air intake and overflow. Utility Model Content

[0003] The purpose of this utility model is to provide an air intake structure for a range hood, which solves the above-mentioned technical problems.

[0004] The air intake structure proposed in this utility model includes an air intake panel with an air intake; it also includes a first oil guide groove located on the back side of the air intake panel and above the air intake, a second oil guide groove located on the back side of the air intake panel and below the air intake, and an air guide plate located below the air intake. The first oil guide groove extends to both sides of the upper edge of the air intake, the second oil guide groove extends to both sides of the lower edge of the air intake, and the height of the end of the air guide plate near the air intake is lower than the height of the end away from the air intake.

[0005] According to one embodiment of the present invention, the lowest end of the air guide plate is connected to the highest point of the second oil guide groove, and the oil on the air guide plate flows into the second oil guide groove.

[0006] According to one embodiment of the present invention, the bottom of the second oil guide groove is provided with a first oil outlet hole.

[0007] According to one embodiment of the present invention, the air guide plate is arc-shaped, the lowest end of the air guide plate is located outside the second oil guide groove, and a second oil outlet hole is provided at the lowest point of the air guide plate.

[0008] According to one embodiment of the present invention, a panel reinforcing plate is connected to the back side of the suction panel, and an avoidance opening is provided around the suction port on the panel reinforcing plate. A first oil guide groove is provided at the upper edge of the avoidance opening, and a second oil guide groove is provided at the lower edge of the avoidance opening.

[0009] According to one embodiment of the present invention, the lower edge of the clearance opening extends backward from bottom to top, and the extension and the portion of the suction panel located at the lower edge of the suction opening form a second oil guide groove.

[0010] According to one embodiment of the present invention, the air guide plate is formed by extending the upper edge of the extension portion.

[0011] According to one embodiment of the present invention, the front edge of the air guide plate is provided with an extension plate and a connecting plate. The extension plate is inclined upward from front to back, and the connecting plate extends downward from the rear edge of the extension plate. The connecting plate is connected to the panel reinforcement plate, or the lower edge of the panel reinforcement plate is folded upward to form the connecting plate. The upper edge of the connecting plate extends upward from front to back with an extension plate, and the air guide plate is formed by extending from the upper edge of the extension plate.

[0012] According to one embodiment of the present invention, the air intake extends toward the back side of the air intake panel with a first flange that is constricted around the air intake and a second flange that is widened around the first flange. The first flange and the second flange located below the first oil guide groove form a third oil guide groove. The downward projection of the second flange located above the second oil guide groove falls into the second oil guide groove.

[0013] This utility model also proposes a range hood that adopts the above-mentioned air intake structure. The range hood has a shell and an exhaust device. The shell has a smoke collection chamber and an air intake panel located on the front side of the smoke collection chamber. The air intake is connected to the smoke collection chamber. The exhaust device draws oil fumes into the smoke collection chamber through the air intake and discharges the oil fumes in the smoke collection chamber.

[0014] Compared with the prior art, the air intake structure of this utility model has the following advantages:

[0015] The suction port structure of this utility model has a first oil guide groove that can receive oil flowing along the suction panel to the top of the suction port and guide the oil towards both ends of the suction port. This allows the oil to bypass both ends of the suction port as it flows downward after leaving the first oil guide groove, thus preventing oil from accumulating above the suction port and overflowing. The second oil guide groove can receive oil left from the guide plate, preventing oil from flowing directly from the guide plate to the suction port. Furthermore, the oil in the second oil guide groove can continue to flow downward from both ends, preventing oil from accumulating below the suction port and reducing the risk of oil overflowing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the smoke hood of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the smoke hood of this utility model;

[0018] Figure 3 This is a structural cross-sectional view of the smoke hood of this utility model;

[0019] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0020] In the figure: a. First oil guide groove, b. Second oil guide groove, b1. First oil outlet, c. Air guide plate, c1. Second oil outlet, c2. Extension plate, c3. Connecting plate, d. Third oil guide groove, 1. Suction panel, 11. Suction port, 2. Panel reinforcement plate, 21. Extension, 3. Housing, 4. Exhaust device.

[0021] The implementation and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] To further understand the content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0026] This utility model discloses an air intake structure for use in a range hood. Please refer to [link / reference]. Figures 1 to 4The air intake structure proposed in this utility model includes an air intake panel 1, on which an air intake 11 is provided; it also includes a first oil guide groove a located on the back side of the air intake panel 1 and above the air intake 11, a second oil guide groove b located on the back side of the air intake panel 1 and below the air intake 11, and an air guide plate c located below the air intake 11. The first oil guide groove a extends to both sides of the upper edge of the air intake 11, the second oil guide groove b extends to both sides of the lower edge of the air intake 11, and the height of the end of the air guide plate c near the air intake 11 is lower than the height of the end away from the air intake 11.

[0027] In this embodiment, the suction panel 1 forms the front appearance structure of the range hood. The side of the suction panel 1 facing away from the user is called the back side of the suction panel 1. The range hood has a smoke collection chamber, and the air inlet 11 is connected to the smoke collection chamber. When the suction panel 1 is installed on the range hood, the first oil guide groove a, the second oil guide groove b, and the air guide plate c are all located inside the smoke collection chamber. The oil and smoke in the smoke collection chamber will adhere and accumulate on the back side of the suction panel 1, eventually forming oil flowing downwards. The first oil guide groove a is located above the air inlet 11. The first oil guide groove a can receive the oil flowing along the suction panel 1 to the top of the air inlet 11 and guide the oil towards both ends of the air inlet 11, so that when the oil leaves the first oil guide groove a and continues to flow downwards, it can bypass both ends of the air inlet 11, thereby preventing the oil above the air inlet 11 from accumulating and overflowing.

[0028] The air guide plate c can guide the airflow that has just flowed into the smoke collection chamber from the air intake 11 upwards. The air guide plate c is inclined upwards from front to back, which allows the airflow to turn and flow upwards more naturally and smoothly under the action of the air guide plate c, so as to make the airflow path in the smoke collection chamber more stable while ensuring the airflow velocity. The oil flowing to the air guide plate c or dripping on the air guide plate c will flow to the end of the air guide plate c near the air intake 11 under the action of gravity, and further flow into the second oil guide groove b. The second oil guide groove b is located below the air intake 11. The lowest point of the air guide plate c is connected to the highest point of the second oil guide groove b. The oil on the air guide plate c flows into the second oil guide groove b. The second oil guide groove b can receive the oil left from the air guide plate c, preventing the oil from flowing directly from the air guide plate c to the air intake 11. In addition, the oil in the second oil guide groove b can also continue to flow downward from both ends of the second oil guide groove b, preventing the oil from accumulating below the air intake 11, thereby reducing the risk of oil overflowing from the air intake 11.

[0029] The air intake structure of this utility model, such as Figure 4As shown, the bottom of the second oil guide trough b is provided with a first oil outlet b1. The first oil outlet b1 allows the oil in the second oil guide trough b to continue flowing downwards after passing through, enabling the oil in the second oil guide trough b to flow away more quickly and completely, reducing the residence time of the oil in the second oil guide trough b, and reducing the amount of residual oil in the second oil guide trough b, thereby improving the oil collection effect. There are multiple first oil outlets b1, which are spaced apart along the length of the suction port 11 to increase the number of oil outlet positions in the second oil guide trough b, improving the oil discharge speed and the completeness of oil discharge.

[0030] The air intake structure of this utility model, such as Figure 3 As shown, the air guide plate c is arc-shaped, with its lowest point located outside the second oil guide groove b. A second oil outlet c1 is located at the lowest point of the air guide plate c. The air guide surface of the air guide plate c is a concave arc surface, which allows the airflow to turn more smoothly and naturally when passing through the air guide surface, thus maintaining a high flow velocity after the airflow turns. When the oil on the air guide plate c reaches its lowest point, some of the oil can drip directly through the second oil outlet c1, allowing the oil on the air guide plate c to leave the air guide plate c more quickly and completely. There are multiple second oil outlets c1, spaced apart along the length of the air intake 11, to increase the number of oil outlet locations on the air guide plate c.

[0031] The air intake structure of this utility model, such as Figures 2 to 4 As shown, a panel reinforcement plate 2 is connected to the back side of the suction panel 1. An avoidance opening is provided around the suction port 11 on the panel reinforcement plate 2. A first oil guide groove a is provided at the upper edge of the avoidance opening, and a second oil guide groove b is provided at the lower edge of the avoidance opening.

[0032] The panel reinforcement plate 2 can improve the structural strength of the air intake structure and prevent the air intake structure from being easily deformed or damaged. The vertical dimension of the clearance opening is larger than that of the air intake 11 in the vertical direction. The upper edge of the clearance opening is located above the upper edge of the air intake 11, and the lower edge of the clearance opening is located below the lower edge of the air intake 11. Setting the first oil guide groove a at the upper edge of the clearance opening and the second oil guide groove b at the lower edge of the clearance opening can simplify the connection between the first oil guide groove a and the second oil guide groove b and the air intake panel 1, and improve the structural stability of the first oil guide groove a and the second oil guide groove b.

[0033] The air intake structure of this utility model, such as Figures 2 to 3As shown, the lower edge of the clearance opening extends rearward from bottom to top with an extension portion 21. The extension portion 21 and the portion of the suction panel 1 located at the lower edge of the suction port 11 form a second oil guide groove b. The extension portion 21 extends obliquely upward and backward from the lower edge of the clearance opening, and the upper surface of the extension portion 21 forms part of the groove wall of the second oil guide groove b. The wall surface of the suction panel 1 between the lower edge of the suction port 11 and the lower edge of the clearance opening also forms part of the groove wall of the second oil guide groove b.

[0034] In the air intake structure of this utility model, the air guide plate c is formed by extending the upper edge of the extension portion 21. The air guide plate c and the extension portion 21 are integrally formed, which simplifies the formation of the air guide plate c and improves the processing and forming convenience of the air intake structure.

[0035] The air intake structure of this utility model, such as Figures 2 to 4 As shown, the front edge of the air guide plate c is provided with an extension plate c2 and a connecting plate c3. The extension plate c2 is inclined upward from front to back, and the connecting plate c3 extends downward from the rear edge of the extension plate c2. The connecting plate c3 is connected to the panel reinforcement plate 2, or the lower edge of the panel reinforcement plate 2 is folded upward to form the connecting plate c3. The upper edge of the connecting plate c3 extends upward from front to back with the extension plate c2. The air guide plate c is formed by extending from the upper edge of the extension plate c2.

[0036] The connecting plate c3 connects the extension plate c2 to the panel reinforcement plate 2. The extension plate c2 connects the upper edge of the connecting plate c3 to the lower end of the air guide plate c. The air guide plate c, the connecting plate c3, and the extension plate c2 are integrally formed, which simplifies the formation of the air guide plate c and improves the connection convenience between the air guide plate c and the panel reinforcement plate 2.

[0037] The air intake structure of this utility model, such as Figure 4 As shown, the air intake 11 extends toward the back of the air intake panel 1 with a first flange that is constricted and a second flange that is widened and is arranged around the first flange. The first flange and the second flange located below the first oil guide groove a form a third oil guide groove d. The downward projection of the second flange located above the second oil guide groove b falls into the second oil guide groove b.

[0038] Both the second and first flanges can be formed by flipping the periphery of the air intake 11. The second flange is located inside the first flange, the first oil guide groove a is located above the first and second flanges, and the third oil guide groove d is located below the first oil guide groove a. In conjunction with the above-described embodiment of the panel reinforcing plate 2, when the oil on the air intake panel 1 flows downward, some of the oil may not flow to the first oil guide groove a, but will flow into the gap between the panel reinforcing plate 2 and the air intake panel 1. After the oil flows out from the gap, it can be received by the third oil guide groove d, thereby preventing this part of the oil from continuing to flow to the air intake 11. The downward projection of the second flange falls into the second oil guide groove b, which allows the second flange to cover the second oil guide groove b, preventing the user from directly seeing the oil in the second oil guide groove b from the outside of the air intake 11, thereby improving the user experience. This also prevents the oil in the second oil guide groove b from splashing out of the air intake 11, thereby improving the oil spill prevention effect of the air intake structure.

[0039] This utility model also proposes a range hood, which adopts the air intake structure described above. The range hood has a housing 3 and an exhaust device 4. The housing 3 has a smoke collection chamber and an air intake panel 1 located on the front side of the smoke collection chamber. The air intake 11 is connected to the smoke collection chamber. The exhaust device 4 draws oil fumes into the smoke collection chamber through the air intake 11 and discharges the oil fumes in the smoke collection chamber.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air intake structure for a range hood, characterized in that: The device includes a suction panel (1) with a suction port (11) on it; it also includes a first oil guide groove (a) located on the back side of the suction panel (1) and above the suction port (11), a second oil guide groove (b) located on the back side of the suction panel (1) and below the suction port (11), and a guide plate (c) located below the suction port (11). The first oil guide groove (a) extends to both sides of the upper edge of the suction port (11), the second oil guide groove (b) extends to both sides of the lower edge of the suction port (11), and the height of the end of the guide plate (c) near the suction port (11) is lower than the height of the end away from the suction port (11).

2. The air intake structure according to claim 1, characterized in that, The lowest end of the air guide plate (c) is connected to the highest point of the second oil guide groove (b), and the oil on the air guide plate (c) flows into the second oil guide groove (b).

3. The air intake structure according to claim 1, characterized in that, The bottom of the second oil guide groove (b) is provided with a first oil outlet hole (b1).

4. The air intake structure according to claim 1, characterized in that, The air guide plate (c) is arc-shaped, and the lowest end of the air guide plate (c) is located outside the second oil guide groove (b). The lowest point of the air guide plate (c) is provided with a second oil outlet hole (c1).

5. The air intake structure according to claim 1, characterized in that, The back side of the suction panel (1) is connected to a panel reinforcement plate (2). The panel reinforcement plate (2) is provided with an avoidance opening around the suction port (11). The upper edge of the avoidance opening is provided with a first oil guide groove (a), and the lower edge of the avoidance opening is provided with a second oil guide groove (b).

6. The air intake structure according to claim 5, characterized in that, The lower edge of the clearance opening extends backward from bottom to top with an extension (21), and the extension (21) and the portion of the suction panel (1) located at the lower edge of the suction port (11) form the second oil guide groove (b).

7. The air intake structure according to claim 6, characterized in that, The air guide plate (c) is formed by extending the upper edge of the extension (21).

8. The air intake structure according to claim 5, characterized in that, The air guide plate (c) has an extension plate (c2) and a connecting plate (c3) at its front edge. The extension plate (c2) is inclined upward from front to back. The connecting plate (c3) extends downward from the rear edge of the extension plate (c2). The connecting plate (c3) is connected to the panel reinforcement plate (2), or the lower edge of the panel reinforcement plate (2) is folded upward to form the connecting plate (c3). The upper edge of the connecting plate (c3) has an extension plate (c2) extending upward from front to back. The air guide plate (c) is formed by extending from the upper edge of the extension plate (c2).

9. The air intake structure according to claim 1, characterized in that, The air intake (11) extends toward the back of the air intake panel (1) with a first flange that is constricted and a second flange that is widened and is arranged around the first flange. The first flange and the second flange located below the first oil guide groove (a) form a third oil guide groove (d). The downward projection of the second flange located above the second oil guide groove (b) falls into the second oil guide groove (b).

10. A range hood, employing the air intake structure according to any one of claims 1 to 9, characterized in that, The range hood has a housing (3) and an exhaust device (4). The housing (3) has a smoke collection chamber and an exhaust panel (1) located in front of the smoke collection chamber. The exhaust port (11) is connected to the smoke collection chamber. The exhaust device (4) draws oil fumes into the smoke collection chamber through the exhaust port (11) and discharges the oil fumes in the smoke collection chamber.

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