Range hood

Abstract

The utility model provides a range hood. The range hood comprises a range hood lower cavity body and a smoke barrier, an air inlet is formed in the range hood lower cavity body, the first end, in the extending direction, of the smoke barrier is connected to the range hood lower cavity body, and the second end of the smoke barrier is arranged obliquely upwards relative to the range hood lower cavity body. In the vertical direction, the smoke baffle divides the air inlet into an upper air inlet and a lower air inlet. In the range hood, the smoke baffle is arranged upwards in an inclined manner, so that the shielding to the view of a user can be improved or avoided, and the use experience of the user can be improved. Besides, the smoke barrier divides the air inlet into the upper air inlet and the lower air inlet, and the second end of the smoke barrier in the prior art is moved to the position close to the middle from the position above the air inlet, so that airflow passes through the upper side and the lower side of the smoke barrier, and the smoke suction capacity of the edge of the smoke barrier is improved by utilizing the gas wall attachment effect; therefore, the smoke suction effect of the range hood is improved.

Description

Technical Field

[0001] The utility model relates to the field of kitchen utensils, and particularly to a range hood. Background Art

[0002] At present, range hoods have been widely used by users to extract cooking fumes. A range hood generally includes a fan system located above and a main body of the lower cavity of the range hood located below, and an air inlet is provided on the main body of the lower cavity of the range hood. In order to improve the fume extraction effect of the range hood, a baffle is usually provided in a low-suction range hood and a side-suction range hood.

[0003] Fume capture is a process of twisting the direction of the velocity of cooking fumes by aerodynamic force before the force balance of the cooking fumes towards the air inlet of the range hood. Existing near-suction and low-suction range hoods usually use a horizontal or downward-inclined baffle, and the baffle is connected to the main body of the lower cavity of the range hood. That is, one end of the baffle is connected to the main body of the lower cavity of the range hood, and the other end protrudes horizontally from the main body of the lower cavity of the range hood or is arranged obliquely downward relative to the main body of the lower cavity of the range hood. The effects of the baffle include concentrating the ventilation volume of the range hood under the baffle to reduce the flow area to increase the wind speed, and blocking the rapid rise and escape of cooking fumes on the path to extend the traction time of the cooking fumes. In addition, in order to achieve the above effects, the baffle usually needs to be set to have a certain length, which also causes some users with relatively high height to encounter the problem of blocked vision, which affects the user experience.

[0004] In addition, in the prior art, there is usually a gap between the baffle and the main body of the lower cavity of the range hood when the baffle is opened, and cooking fumes are likely to escape from this gap, thus easily affecting the fume extraction effect. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the defect that the baffle of the range hood in the prior art easily blocks the user's vision, and provide a range hood.

[0006] The utility model solves the above technical problem through the following technical solutions:

[0007] A range hood, including a main body of the lower cavity of the range hood and a baffle, an air inlet is provided on the main body of the lower cavity of the range hood, the first end of the baffle along the extending direction is connected to the main body of the lower cavity of the range hood, and the second end of the baffle along the extending direction is arranged obliquely upward relative to the main body of the lower cavity of the range hood;

[0008] Wherein, in the vertical direction, the baffle divides the air inlet into an upper air inlet and a lower air inlet.

[0009] In this solution, the smoke baffle is inclined upward, which can improve or avoid blocking the user's vision and is beneficial to improving the user experience. In addition, the smoke baffle divides the air inlet into an upper air inlet and a lower air inlet, and moves the second end of the smoke baffle from above the air inlet in the prior art to a position near the middle, so that air flows through both the upper and lower sides of the smoke baffle. Utilizing the gas wall attachment effect is beneficial to enhancing the smoking ability at the edge of the smoke baffle, thereby being beneficial to improving the smoking effect of the range hood.

[0010] Preferably, the first end of the smoke baffle extends into the air inlet and is connected to the opposite side walls of the air inlet;

[0011] And / or, the second end of the smoke baffle forms an angle with the horizontal plane, and the range of the angle is 18° to 30°.

[0012] In this solution, with the above structural arrangement, it is possible to improve the blocking of the user's vision while ensuring a certain smoking effect.

[0013] Preferably, the first end of the smoke baffle can move up and down in the vertical direction so that the sizes of the upper air inlet and the lower air inlet can be adjusted.

[0014] In this solution, with the above structural arrangement, it is possible to adjust the sizes of the upper air inlet and the lower air inlet, and further to achieve the air volume distribution between the upper air inlet and the lower air inlet, which is beneficial to meeting more usage requirements of users and has strong flexibility. Among them, when the upper air inlet increases, the air volume below the smoke baffle decreases; on the premise of meeting the smoking effect, the smoke can still be captured, but the limit position where it is captured is farther from the range hood or the main body of the lower cavity of the range hood. This means that in addition to the oil fume that can still be captured, the fragrance of the user's cooking will be closer to the user, which is beneficial to creating a better user experience.

[0015] Preferably, the range hood further includes a smoke-catching baffle. The first end of the smoke-catching baffle along the extending direction is connected to the main body of the lower cavity of the range hood, and the smoke-catching baffle is located above the upper air inlet and the lower air inlet;

[0016] The end of the smoke-catching baffle far from the main body of the lower cavity of the range hood is the second end, and the second end of the smoke baffle can be joined or separated from the second end of the smoke-catching baffle;

[0017] Among them, when the second end of the smoke baffle is joined to the second end of the smoke-catching baffle, the upper air inlet is in a closed state;

[0018] When the second end of the smoke baffle is separated from the second end of the smoke-catching baffle, the space formed by the second end of the smoke-catching baffle and the second end of the smoke baffle is communicated with the upper air inlet to form an upper air duct. The upper air inlet is in an open state, and the end faces of the second end of the smoke-catching baffle and the second end of the smoke baffle enclose the inlet end of the upper air duct.

[0019] In this solution, with the above structural arrangement, the smoke-catching baffle enables the smoke baffle and the smoke-catching baffle to enclose an upper air duct. The upper air duct can be used as an extension section of the air duct of the range hood, so that a relatively high wind speed can still be maintained at the outer edge position of the smoke baffle, which is beneficial to enhancing the ability to capture the oil fume at the edge of the smoke baffle, and thus is beneficial to further improving or ensuring the smoking effect of the range hood.

[0020] Preferably, the smoke baffle and / or the smoke-catching baffle is a telescopic structure or a foldable structure, so that the sizes of the inlet end and the upper air duct can be adjusted.

[0021] In this solution, with the above structural arrangement, the air volume distribution between the upper air inlet and the lower air inlet can be realized, which is beneficial to meeting more usage requirements of users and has strong flexibility. Among them, taking the smoke-catching baffle as an example where the length can be adjusted by telescoping, the longer the length of the smoke-catching baffle, the closer the inlet end of the upper air duct is to the outer side of the smoke baffle, the smaller the flow-through area, and the higher the wind speed. At the same time, the air volume distribution between the upper air inlet and the lower air inlet can be realized. As the length of the smoke-catching baffle increases, while the flow-through area decreases, the resistance of the upper air duct increases, and more air volume will be distributed to the lower air inlet.

[0022] Preferably, the smoke-catching baffle is horizontally arranged, and the first end of the smoke-catching baffle is attached to and fixedly connected to the main body of the lower cavity of the range hood.

[0023] In this solution, with the above structural arrangement, the smoke-catching baffle is attached to the main body of the lower cavity of the range hood, and there is no gap between them, so that the escape of the flue gas from this place can be avoided, which is beneficial to further improving or ensuring the smoking effect of the range hood.

[0024] Preferably, along the horizontal direction, the smoke-catching baffle includes at least two plate elements, and in the extending direction of the smoke-catching baffle, the distances between the at least two plate elements and the second end of the smoke baffle are not completely equal.

[0025] In this solution, with the above structural arrangement, since the lengths of the respective plate elements are not completely the same, it is equivalent to different air volumes along the flow direction in the upper air duct, and the air volume distribution can be realized or adjusted, and thus more usage requirements of users can be met. Among them, on the side where the length of the plate element is shorter, the air inlet resistance at the inlet end of the upper air duct is small, and correspondingly, more air volume is distributed to this side.

[0026] Preferably, the at least two plate elements are spliced or integrally formed.

[0027] In this solution, according to actual setting requirements, the plate elements can be set to be connected together, such as by welding or bonding, or the plate elements can be set to be integrally formed, with flexible settings.

[0028] Preferably, in the extending direction of the smoke-catching plate, the length difference between any two of the plate elements is less than 30 mm.

[0029] In this solution, since the lengths of the plate elements are not exactly the same, it is equivalent to different air volumes along the flow direction in the upper air duct, and air volume distribution can be achieved or adjusted. However, it should be noted that air volume distribution is not exactly the same as the distribution of smoking effects. Assuming there is a conversion relationship with a coefficient of k between smoking ability and air volume, smoking ability = k * air volume. A longer smoke-catching plate will result in more air volume distribution on the lower side of the smoke-blocking plate, and at the same time, the wind speed at the edge of the smoke-blocking plate is fast, which is beneficial to the smoking effect. Therefore, theoretically, the k value of a longer smoke-catching plate is greater than that of a shorter smoke-catching plate. Reducing the length of the smoke-catching plate will cause the k value to decay, and when the length change is small, the decay is not obvious. However, when the length reduction exceeds a certain critical value, the k value will decrease sharply. Therefore, along the horizontal direction, when the length difference between the left and right smoke-catching plates is small, the k values on the left and right are similar, and at this time, the distribution of smoking ability can be approximately regarded as the air volume distribution on the left and right caused by the length difference of the smoke-catching plates. However, when the length difference between the left and right smoke-catching plates is large, there are significant differences in the air volume distribution at the upper and lower air inlets and the wind speed at the edge of the smoke-blocking plate on the left and right, that is, the k values on the left and right are quite different, and the influence of air volume distribution on the actual smoking ability is diluted by the k value, that is, the left and right air volume adjustment at this time has little significance for the distribution of smoking ability. In summary, with the above structural settings, on the basis of achieving air volume distribution, the distribution of smoking ability can be further improved or ensured, and thus the smoking effect of the range hood can be further improved or ensured.

[0030] Preferably, the ratio of the flow-through area of the upper air inlet to the flow-through area of the lower air inlet is between 2:3 and 2:8.

[0031] In this solution, with the above structural settings, the lower air inlet is the main air inlet, and at the same time, the upper air inlet can also play a better role, which is beneficial to further ensuring the smoking effect of the range hood.

[0032] The positive and progressive effects of the present utility model are as follows:

[0033] In this range hood, the smoke baffle is arranged to slope upwards, which can improve or avoid blocking the user's field of vision and is beneficial to improving the user experience. In addition, the smoke baffle divides the air inlet into an upper air inlet and a lower air inlet, moving the second end of the smoke baffle from above the air inlet in the prior art to a position near the middle, so that airflows pass through both the upper and lower sides of the smoke baffle. Utilizing the gas wall attachment effect is conducive to enhancing the smoking ability at the edge of the smoke baffle, thereby improving the smoking effect of the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 FIG. is a partial structural schematic diagram of a range hood according to an embodiment of the present invention.

[0035] Figure 2 For Figure 1 corresponding range hood, a structural schematic diagram of another perspective.

[0036] Figure 3 FIG. is a partial structural schematic diagram of a range hood according to another embodiment of the present invention.

[0037] Figure 4 For Figure 3 corresponding range hood, a structural schematic diagram of another perspective.

[0038] Figure 5 FIG. is a partial structural schematic diagram of a range hood according to another embodiment of the present invention.

[0039] Figure 6 For Figure 5 corresponding range hood, a structural schematic diagram of another perspective.

[0040] Figure 7 FIG. is a partial structural schematic diagram of a range hood according to another embodiment of the present invention.

[0041] Figure 8 For Figure 7 corresponding range hood, a structural schematic diagram of another perspective.

[0042] Figure 9 For Figure 7 corresponding range hood, a structural schematic diagram of another perspective.

[0043] Figure 10 FIG. is a partial structural schematic diagram of a range hood according to another embodiment of the present invention.

[0044] Figure 11 For Figure 10 corresponding range hood, a structural schematic diagram of another perspective.

[0045] Figure 12 For Figure 10Schematic structural diagram of another perspective of the corresponding range hood.

[0046] Explanation of reference numerals:

[0047] 10 Main body of the lower cavity of the range hood

[0048] 101 Installation surface

[0049] 20 Air inlet

[0050] 30 Upper air inlet

[0051] 40 Lower air inlet

[0052] 50 Smoke baffle

[0053] 60 Smoke-catching baffle

[0054] 601 First plate element

[0055] 602 Second plate element

[0056] 70 Upper air duct

[0057] 701 Inlet end Detailed implementation manners

[0058] Next, a preferred embodiment is given and the present utility model will be described more clearly and completely in conjunction with the accompanying drawings.

[0059] As Figures 1 to 12 shown, this embodiment provides a range hood, which includes a main body 10 of the lower cavity of the range hood and a smoke baffle 50. An air inlet 20 is provided on the main body 10 of the lower cavity of the range hood. One end of the smoke baffle 50 along the extending direction is connected to the main body 10 of the lower cavity of the range hood, and the other end of the smoke baffle 50 along the extending direction is arranged obliquely upward relative to the main body 10 of the lower cavity of the range hood. Among them, in the vertical direction, the smoke baffle 50 divides the air inlet 20 into an upper air inlet 30 and a lower air inlet 40.

[0060] In this embodiment, the smoke baffle 50 is arranged to incline upward, which can improve or avoid blocking the user's vision and is beneficial to improving the user's experience. In addition, the smoke baffle 50 divides the air inlet 20 into an upper air inlet 30 and a lower air inlet 40, moving the second end of the smoke baffle 50 from above the air inlet in the prior art to a position close to the middle, so that air flows through both the upper and lower sides of the smoke baffle 50. Utilizing the air-wall attachment effect is beneficial to enhancing the smoking ability at the edge of the smoke baffle 50, and thus is beneficial to improving the smoking effect of the range hood.

[0061] It should be noted that the present application aims to improve the structure related to the smoke baffle 50 and the air inlet. Only the main body 10 of the lower cavity of the range hood is schematically shown in the respective drawings for those skilled in the art to understand. As for the specific structure of the main body 10 of the lower cavity of the range hood and how the main body 10 of the lower cavity of the range hood cooperates with other parts of the range hood, such as the fan system, to achieve smoking, it should be well-known to those skilled in the art and will not be elaborated herein.

[0062] In addition, it should be noted that the "slant upward" in the statement "the second end of the smoke baffle 50 in the extending direction is arranged slant upward relative to the main body 10 of the lower cavity of the range hood" can be understood with reference to the height direction or the vertical direction of the range hood after installation. For the main body 10 of the lower cavity of the range hood, the side in the height direction away from the cooking stove is the "upper" side.

[0063] Furthermore, an included angle is formed between the second end of the smoke baffle 50 and the horizontal plane, and the range of the included angle is preferably set to be 18° to 30°. With such a setting, it is possible to improve the occlusion of the user's field of view on the basis of ensuring a certain smoking effect.

[0064] Of course, in other alternative embodiments, the included angle can be adaptively adjusted according to actual setting requirements.

[0065] As for the connection manner between the smoke baffle 50 and the main body 10 of the lower cavity of the range hood, no specific limitation is made herein, and it can be realized by any structure or manner applicable in the prior art, such as screw connection or snap connection.

[0066] Correspondingly, the connection position between the smoke baffle 50 and the main body 10 of the lower cavity of the range hood is also not specifically limited, as long as it can separate the air inlet into the upper air inlet 30 and the lower air inlet 40 on the basis of meeting the smoking requirement.

[0067] As a preferred setting manner, the ratio of the flow-through area of the upper air inlet 30 to the flow-through area of the lower air inlet 40 is between 2:3 and 2:8. With such a setting, the lower air inlet 40 is the main air inlet, and at the same time, the upper air inlet 30 can also play a better role, which is beneficial to further ensuring the smoking effect of the range hood.

[0068] Specifically in this embodiment, the ratio of the flow-through area of the upper air inlet 30 to the flow-through area of the lower air inlet 40 is 2:3.

[0069] As a preferred setting manner, such as Figure 1 、 Figure 3 、 Figure 5 、 Figure 7 and Figure 10As shown, the first end of the smoke baffle 50 extends into the air inlet and is connected to the opposite side walls of the air inlet. With such a setting, it can effectively separate the air inlet and is conducive to the entry of smoke into the air inlet.

[0070] As Figure 1 , Figure 3 , Figure 5 , Figure 7 and Figure 10 , the side surface of the lower cavity body 10 of the range hood for setting the air inlet is simply referred to as the installation surface 101. In an alternative embodiment, the smoke baffle 50 can also be directly installed on the installation surface 101. That is to say, the smoke baffle 50 is installed outside the air inlet. Preferably, the smoke baffle 50 spans across the air inlet.

[0071] Furthermore, as a preferred setting method, the first end of the smoke baffle 50 can move up and down in the vertical direction so that the sizes of the upper air inlet 30 and the lower air inlet 40 can be adjusted. With such a setting, the sizes of the upper air inlet 30 and the lower air inlet 40 can be adjusted, and further, the air volume distribution of the upper air inlet 30 and the lower air inlet 40 can be realized, which is conducive to meeting more usage requirements of users and has strong flexibility. Among them, when the upper air inlet 30 increases, the air volume below the smoke baffle 50 decreases; on the premise of meeting the smoking effect, the smoke can still be captured, but the limit position of the captured smoke is farther from the range hood or the lower cavity body 10 of the range hood. This means that in addition to the oil fume that can still be captured, the fragrance of the user's cooking will be closer to the user, which is conducive to generating a better usage experience.

[0072] It should be noted that the structure for realizing the up and down movement of the smoke baffle 50 is not specifically limited here. Multiple installation positions for installing the smoke baffle 50 can be set in the vertical direction. When the smoke baffle 50 is installed at different installation positions, the smoke baffle 50 is at different installation heights in the vertical direction. In an alternative embodiment, the movement of the smoke baffle 50 relative to the lower cavity body 10 of the range hood can also be realized by setting a motion mechanism, such as through a guide rail slider mechanism, etc.

[0073] Furthermore, as Figures 1 to 12 shown, the range hood further includes a smoke capture baffle 60. The first end of the smoke capture baffle 60 along the extension direction is connected to the lower cavity body 10 of the range hood, and the smoke capture baffle 60 is located above the upper air inlet 30 and the lower air inlet 40. The end of the smoke capture baffle 60 away from the lower cavity body 10 of the range hood is the second end, and the second end of the smoke baffle 50 can be engaged or separated from the second end of the smoke capture baffle 60.

[0074] When the second end of the smoke shield 50 is engaged with the second end of the smoke catching plate 60, the upper air inlet 30 is in a closed state. When the second end of the smoke shield 50 is separated from the second end of the smoke catching plate 60, the space enclosed by the second end of the smoke catching plate 60 and the second end of the smoke shield 50 is connected to the upper air inlet 30 to form an upper air duct 70, and the upper air inlet 30 is in an open state, and the end surface of the second end of the smoke catching plate 60 and the end surface of the second end of the smoke shield 50 enclose an inlet end 701 of the upper air duct 70.

[0075] Among them, the setting of the smoke capture plate 60 enables the smoke baffle plate 50 and the smoke capture plate 60 to form an upper air duct 70. The upper air duct 70 can serve as an extension of the range hood air duct, so that the outer edge position of the smoke baffle plate 50 can still have a higher wind speed, which is beneficial to enhance the ability to capture oil smoke at the edge of the smoke baffle plate 50, and further helps to further improve or ensure the smoke extraction effect of the range hood.

[0076] As a preferred setting mode, the smoke baffle 50 and / or the smoke capture plate 60 can be set as a retractable structure or a foldable structure so that the size of the inlet end 701 and the upper air duct 70 can be adjusted. In this way, the air volume distribution of the upper air inlet 30 and the lower air inlet 40 can be achieved, which is conducive to meeting more user needs and has strong flexibility. Among them, taking the example of the smoke capture plate 60 being adjustable in length by being retractable, the longer the length of the smoke capture plate 60 is, the closer the inlet end 701 of the upper air duct 70 is to the outside of the smoke baffle 50, the smaller the flow area, and the higher the wind speed. At the same time, the air volume distribution of the upper air inlet 30 and the lower air inlet 40 can be achieved. The longer the length of the smoke capture plate 60 is, the smaller the flow area is, and the resistance of the upper air duct 70 increases, and more air volume will be distributed to the lower air inlet 40.

[0077] in, Figure 1 and Figure 2 In the range hood shown, the distance between the second end of the smoke trapping plate 60 and the second end of the smoke baffle plate 50 is a first distance, and the flow area of ​​the inlet end 701 of the upper air duct 70 is a first area; Figure 3 and Figure 4 In the range hood shown, the distance between the second end of the smoke trapping plate 60 and the second end of the smoke baffle plate 50 is a second distance, and the flow area of ​​the inlet end 701 of the upper air duct 70 is a second area; Figure 5 and Figure 6 In the range hood shown, the distance between the second end of the smoke trapping plate 60 and the second end of the smoke baffle plate 50 is a third distance, and the flow area of ​​the inlet end 701 of the upper air duct 70 is a third area. Figures 1 to 6 It can be seen that the first distance is smaller than the third distance, and the third distance is smaller than the second distance. Accordingly, the first area is smaller than the third area, and the third area is smaller than the second area. Figures 1 to 6Among these three configurations, it is achieved by adjusting the length of the smoke-catching plate 60 while keeping the length of the smoke baffle 50 unchanged. In an alternative embodiment, it can also be achieved by adjusting the length of the smoke baffle 50 while keeping the length of the smoke-catching plate 60 unchanged.

[0078] In a further preferred setting, the smoke-catching plate 60 is horizontally arranged, and the first end of the smoke-catching plate 60 is attached to and fixedly connected to the main body 10 of the lower cavity of the range hood. With this setting, the smoke-catching plate 60 fits closely to the main body 10 of the lower cavity of the range hood, and there is no gap between them, thereby avoiding the escape of flue gas from here, which is conducive to further improving or ensuring the smoke extraction effect of the range hood.

[0079] Refer to Figures 7 to 12 It should be understood that in a further preferred setting, along the horizontal direction, the smoke-catching plate 60 can be arranged to include at least two plate elements, and in the extending direction of the smoke-catching plate 60, the distances between at least two plate elements and the second end of the smoke baffle 50 are not completely equal. Among them, Figures 7 to 12 Two plate elements are schematically shown. In other alternative embodiments, the number of plate elements can be set to three or more according to actual setting requirements.

[0080] For ease of description, hereinafter, the leftmost of the above two plate elements is referred to as the first plate element 601, and the rightmost is referred to as the second plate element 602. In fact, according to different setting requirements, the first plate element 601 and the second plate element 602 can be set to have the same or different structures. However, as a preferred setting, Figures 7 to 12 In the range hood shown, the first plate element 601 and the second plate element 602 have different structures.

[0081] With this setting, since the lengths of the plate elements are not completely the same, it is equivalent to different air volumes along the flow direction in the upper air duct 70, and the air volume distribution can be realized or adjusted, which can further meet more usage requirements of users. Among them, on the side where the length of the plate element is shorter, the air inlet resistance at the inlet end 701 of the upper air duct 70 is small, and correspondingly, more air volume is distributed on this side.

[0082] At least two plate elements can be spliced or integrally formed. Specifically, according to actual setting requirements, each plate element can be set to be connected together, such as by welding or bonding, or each plate element can be set to be integrally formed, and the setting is relatively flexible. As a preferred setting, in this embodiment, the first plate element 601 and the second plate element 602 are integrally formed.

[0083] Such as Figures 7 to 9As shown, the first plate element 601 is shorter, and the second plate element 602 is longer. The distance between the first plate element 601 and the second end of the smoke baffle 50 is the fourth distance, and the distance between the second plate element 602 and the second end of the smoke baffle 50 is the fifth distance. The fourth distance is greater than the fifth distance. Correspondingly, the cross-sectional area of the inlet end 701 of the upper air duct 70 corresponding to the first plate element 601 is greater than the cross-sectional area of the inlet end 701 of the upper air duct 70 corresponding to the second plate element 602. As Figures 10 to 12 As shown, the first plate element 601 is longer, and the second plate element 602 is shorter. The distance between the first plate element 601 and the second end of the smoke baffle 50 is the fourth distance, and the distance between the second plate element 602 and the second end of the smoke baffle 50 is the fifth distance. Then the fourth distance is less than the fifth distance. Correspondingly, the cross-sectional area of the inlet end 701 of the upper air duct 70 corresponding to the first plate element 601 is less than the cross-sectional area of the inlet end 701 of the upper air duct 70 corresponding to the second plate element 602.

[0084] As another preferred setting method, in the extending direction of the smoke-catching plate 60, the length difference between any two plate elements is less than 30 mm. Specifically, since the lengths of the plate elements are not completely the same, it is equivalent to different air volumes along the flow direction in the upper air duct 70, and the air volume distribution can be realized or adjusted. However, it should be noted that the air volume distribution is not completely equivalent to the distribution of the smoking effect. Assuming that there is a conversion relationship with a coefficient of k between the smoking ability and the air volume, smoking ability = k * air volume. A longer smoke-catching plate 60 will result in a greater air volume distribution on the lower side of the smoke baffle 50. At the same time, the wind speed at the edge of the smoke baffle 50 is fast, which is beneficial to the smoking effect. Therefore, theoretically, the k value of the longer smoke-catching plate 60 is greater than the k value of the shorter smoke-catching plate 60. Reducing the length of the smoke-catching plate 60 will cause the k value to decay, and when the length change is small, the decay is not obvious. However, when the length reduction exceeds a certain critical value, the k value will decrease sharply. Therefore, along the horizontal direction, when the length difference between the left and right smoke-catching plates 60 is small, the k values on the left and right are similar. At this time, the distribution of the smoking ability can be approximately regarded as the air volume distribution on the left and right caused by the length difference of the smoke-catching plate 60. However, when the length difference between the left and right smoke-catching plates 60 is large, there are significant differences in the air volume distribution at the upper and lower air inlets 30 and 40 and the wind speed at the edge of the smoke baffle 50 on the left and right, that is, the k values on the left and right differ greatly. The influence of the air volume distribution on the actual smoking effect ability is diluted by the k value, that is, the left and right air volume adjustment at this time has little significance for the distribution of the smoking ability. In summary, by adopting the above structural settings, on the basis of realizing the air volume distribution, the distribution of the smoking ability can be further improved or ensured, and thus the smoking effect of the range hood can be further improved or ensured.

[0085] Specifically in this embodiment, the height difference between the first plate element 601 and the second plate element 602 is 10 mm.

[0086] In summary, in this range hood, the smoke baffle 50 is inclined upward, which can improve or avoid blocking the user's vision and is beneficial to improving the user experience. In addition, the smoke baffle 50 divides the air inlet into an upper air inlet 30 and a lower air inlet 40, and moves the second end of the smoke baffle 50 from above the air inlet to a position near the middle in the prior art, so that air flows through both the upper and lower sides of the smoke baffle 50. Utilizing the gas wall attachment effect is beneficial to enhancing the smoke suction ability at the edge of the smoke baffle 50, thereby being beneficial to improving the smoke suction effect of the range hood. In addition, the setting of the smoke capture plate 60 enables the smoke baffle 50 and the smoke capture plate 60 to enclose an upper air duct 70. The upper air duct 70 can be used as an extension section of the range hood air duct, so that a relatively high air speed can still be maintained at the outer edge position of the smoke baffle 50, which is beneficial to enhancing the ability to capture the oil fume at the edge of the smoke baffle 50, and further beneficial to further improving or ensuring the smoke suction effect of the range hood. Further, the smoke capture plate 60 is in contact with the main body 10 of the lower cavity of the range hood, and there is no gap between them, so that the smoke can be prevented from escaping from here, and further beneficial to further improving or ensuring the smoke suction effect of the range hood.

[0087] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present invention is defined by the appended claims. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A range hood, comprising a range hood lower chamber body and a smoke baffle, wherein the range hood lower chamber body is provided with an air inlet, and the smoke baffle is connected to the range hood lower chamber body at a first end along an extension direction, characterized in that: The second end of the smoke baffle along the extension direction is arranged obliquely upward relative to the main body of the range hood lower chamber; Wherein, in the vertical direction, the smoke baffle separates the air inlet into an upper air inlet and a lower air inlet.

2. The range hood according to claim 1, characterized in that: The first end of the smoke baffle extends into the air inlet and is connected to two opposite side walls of the air inlet; And / or, the second end of the smoke baffle forms an angle with the horizontal plane, and the angle ranges from 18° to 30°.

3. The range hood according to claim 2, characterized in that: The first end of the smoke baffle can move up and down in the vertical direction so that the sizes of the upper air inlet and the lower air inlet can be adjusted.

4. The range hood according to claim 1, characterized in that: The range hood further comprises a smoke catching plate, a first end of which along the extension direction is connected to the range hood lower chamber body, and the smoke catching plate is located above the upper air inlet and the lower air inlet; The end of the smoke catching plate away from the main body of the lower chamber of the range hood is the second end, and the second end of the smoke baffle plate can be engaged with or separated from the second end of the smoke catching plate; Wherein, when the second end of the smoke baffle plate is engaged with the second end of the smoke trap plate, the upper air inlet is in a closed state; When the second end of the smoke baffle plate is separated from the second end of the smoke catching plate, the space enclosed by the second end of the smoke catching plate and the second end of the smoke baffle plate is connected to the upper air inlet to form an upper air duct, and the upper air inlet is in an open state, and the end surface of the second end of the smoke catching plate and the end surface of the second end of the smoke baffle plate enclose the inlet end of the upper air duct.

5. The range hood according to claim 4, characterized in that: The smoke baffle and / or the smoke catching plate is a retractable structure or a foldable structure, so that the size of the inlet end and the upper air duct can be adjusted.

6. The range hood according to claim 4, characterized in that: The smoke catching plate is arranged horizontally, and the first end of the smoke catching plate is attached to and fixedly connected with the main body of the lower chamber of the range hood.

7. The range hood according to claim 4, characterized in that: Along the horizontal direction, the smoke catching plate includes at least two plate elements, and in the extending direction of the smoke catching plate, the distances between the at least two plate elements and the second end of the smoke baffle plate are not completely equal.

8. The range hood according to claim 7, characterized in that: The at least two plate elements are spliced ​​or integrally formed.

9. The range hood according to claim 7, characterized in that: In the extension direction of the smoke capture plate, the length difference between any two of the plate elements is less than 30 mm.

10. The range hood according to any one of claims 1 to 9, characterized in that: The ratio of the flow area of ​​the upper air inlet to the flow area of ​​the lower air inlet is between 2:3 and 2:8.

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