Range hood

Abstract

The utility model relates to a range hood, which comprises a casing, an air inlet, an air outlet and a fan, the smoke baffle is rotationally connected to the machine shell and can open and close the air inlet, and when the smoke baffle is in the state that the air inlet is opened, a gap is formed between the smoke baffle and the front side wall of the machine shell; the smoke barrier is further provided with a shielding piece extending towards the interior of the machine shell, a smoke channel, a smoke inlet and a smoke outlet are further formed in the shielding piece, the smoke inlet and the smoke outlet are communicated with the smoke channel, when the smoke barrier is in the state that the air inlet is opened, the shielding piece is located below the gap, and the smoke outlet is located in the machine shell or at the air inlet. When the smoke barrier is opened, the shielding piece on the smoke barrier can shield the gap between the smoke barrier and the machine shell, the problem that oil smoke escapes from the gap is solved, on the basis, the shielding piece is further correspondingly provided with a smoke channel, a smoke inlet and a smoke outlet, the smoke inlet and the smoke outlet are communicated with the smoke channel, in this way, the negative pressure range can extend outwards, and therefore the smoke blocking effect is improved. And the smoke is not easy to escape from the gap.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a range hood. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. A range hood is usually provided with a smoke shield, which is opened when in use to prevent oil smoke from escaping from above. The smoke shield of an existing range hood is hingedly connected to the range hood body. When the smoke shield is opened, there is a gap between the smoke shield and the range hood body, and oil smoke will escape from the gap, affecting the oil smoke extraction effect.

[0003] In order to solve the above technical problems, a Chinese utility model patent application with application number CN202320536087.9 (authorization announcement number: CN219735416U) discloses a flip cover structure and a range hood, wherein the flip cover structure includes a flap, a swing arm, a smoke guide plate and a smoke baffle plate, wherein two swing arms are provided, and the two swing arms are respectively provided on the left and right sides of the flap and are fixedly connected to the flap, and an airflow channel is formed between the two swing arms, and the airflow in the airflow channel flows in the front-to-back direction below the flap, and the smoke guide plate and the smoke baffle plate are provided between the two swing arms, and the smoke guide plate and the smoke baffle plate are fixedly connected, and the smoke guide plate is located upstream of the smoke baffle plate, and the smoke guide plate is used to guide the airflow to the smoke baffle plate, and the smoke baffle plate is used to make the airflow flow in the front-to-back direction. The flap mechanism is flipped by setting the swing arm, and the airflow in the airflow channel is made to flow in the front-to-back direction by setting the smoke guide plate and the smoke baffle plate, and the airflow is prevented from escaping upward from the rear edge of the flap when the flip cover structure is flipped.

[0004] However, the range hood in the above patent application still has certain shortcomings. Although the escape of oil smoke from the gap can be reduced to a certain extent by setting a smoke guide plate and a smoke baffle plate to block the gap, the amount of oil smoke is large when the cooking operation is more intense, and the existence of the above-mentioned smoke guide plate and smoke baffle plate will also block the smoke from smoothly entering the smoke hood, causing the smoke to escape from the left and right sides or the front side of the flap, reducing the oil fume extraction effect.

[0005] Therefore, existing range hoods need further improvement. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a range hood which can effectively improve the problem of oil smoke escape in view of the current status of the prior art.

[0007] The technical solution adopted by the utility model to solve the above technical problems is: a range hood, comprising:

[0008] The casing has an air inlet on its front side wall;

[0009] a smoke baffle, rotatably connected to the housing and capable of opening and closing the air inlet, wherein when the smoke baffle is in a state of opening the air inlet, a gap is provided between the smoke baffle and the front side wall of the housing;

[0010] The smoke shield is also provided with a shielding member extending toward the inside of the casing, and a smoke channel and a smoke inlet and a smoke outlet connected to the smoke channel are constructed on the shielding member. When the smoke shield is in a state where the air inlet is opened, the shielding member is located below the gap, and the smoke outlet is located in the casing or at the air inlet.

[0011] Generally speaking, the air inlet can be an opening structure arranged only in a set area of ​​the bottom wall of the shielding member, but in order to improve the oil fume absorption effect, the bottom wall of the shielding member is provided with air inlet holes, and the air inlet holes together constitute the fume inlet. The arrangement of the air inlet holes can make the oil fume be sucked into the fume channel during the flow along the shielding member, that is, the negative pressure range is distributed more widely.

[0012] Taking into account that if the size of the shielding member is too large, it will interfere with other components, but if the size is reduced, it will not be enough to cover the gap between the smoke baffle and the casing, for this reason, the shielding member includes a transverse extension portion and a longitudinal extension portion connected to the transverse extension portion, the transverse extension portion is connected to the smoke baffle and is arranged along the length direction of the smoke baffle, the longitudinal extension portion extends from the transverse extension portion toward the casing, the transverse extension portion and the transverse extension portion are both hollow inside to form the smoke channel, at least one of the transverse extension portion and the longitudinal extension portion is provided with the air inlet hole, and the smoke outlet is provided at an end of the longitudinal extension portion away from the transverse extension portion.

[0013] As an improvement, each of the air inlet holes is a strip hole, and the length direction of each strip hole is parallel to the length direction of the smoke baffle. It is conceivable that the air inlet hole can also be a circular hole, an elliptical hole or an opening structure of other shapes.

[0014] In order to bring the smoke outlet on the shielding member closer to the fan system and ensure the smoke absorption effect, the longitudinal extension part is connected to the middle part of the transverse extension part, and the smoke channel is T-shaped as a whole.

[0015] In order to reduce the smoke flow resistance, the bottom surface of the shielding member is a convex curved structure.

[0016] As an improvement, the shielding member is arranged on the back side of the smoke shield plate, and when the smoke shield plate is in a state of closing the air inlet, the shielding member is hidden in the casing.

[0017] In order to avoid interference between the shielding member and the casing or other components during the rotation of the smoke shield, the smoke shield is rotatable around a first axis extending left and right and is arranged on the casing. The cross-section of the shielding member is an arc shape, and the arc-shaped cross-section is centered on the first axis.

[0018] In order to improve the smoke collection effect, the front side wall of the casing is partially recessed toward the inside of the casing to form a smoke collecting recess, and the air inlet is arranged at the position of the smoke collecting recess.

[0019] As an improvement, when the smoke baffle is in a state of closing the air inlet, the smoke baffle is also stored in the smoke collecting recessed area.

[0020] Compared with the prior art, the utility model has the following advantages: when the smoke shield is opened, the shielding member on the smoke shield can be shielded under the gap between the smoke shield and the housing, thereby improving the problem of oil smoke escaping from the gap. On this basis, the shielding member is also provided with a smoke channel and a smoke inlet and a smoke outlet connected to the smoke channel, so that the negative pressure range can be extended outward, and smoke is less likely to escape from the above-mentioned gap. On the other hand, even when the smoke concentration is high, the smoke that cannot enter the air inlet in time can enter the housing through the smoke inlet, smoke channel and smoke outlet of the smoke shield, thereby preventing smoke from escaping from the edge of the smoke shield and improving the overall oil smoke extraction effect of the range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a range hood according to an embodiment of the utility model (the smoke baffle is in an open air inlet state);

[0022] Figure 2 A vertical cross-sectional view of the range hood according to an embodiment of the utility model cut along the front-to-back direction;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of a shielding member according to an embodiment of the utility model;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the range hood according to an embodiment of the utility model (the smoke baffle is in a state of closing the air inlet). DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0027] Figure 1-Figure 4 A preferred embodiment of the range hood of the utility model is shown. The range hood includes a housing 1 and a centrifugal fan 13 arranged in the housing 1. The housing 1 generally includes a fan frame 11 and a fume hood 12 arranged at the bottom of the fan frame 11. The inner cavity of the fan frame 11 is connected to the inner cavity of the fume hood 12. An air inlet 121 is provided on the front side wall of the fume hood 12, and external smoke can enter the fume hood 12 through the air inlet 121. The centrifugal fan 13 is arranged in the fan frame 11. When the centrifugal fan 13 is running, negative pressure is generated, and external oil smoke can be sucked into the fume hood 12 through the air inlet 121. An oil net is also provided at the air inlet 121 of the fume hood 12 for filtering oil smoke. An oil cup 15 is provided at the bottom of the fume hood 12. The oil cup 15 is in the shape of a long strip extending left and right, and is used to receive the oil stains flowing down from the fume hood 12. The front part of the smoke hood 12 is also provided with a smoke shield 14 that can be deflected forward and backward relative to the smoke hood 12. The smoke shield 14 is connected to the main body of the smoke hood 12 through a hinge motion mechanism, and can be deflected forward to open the above-mentioned air inlet 121 and deflected backward to block and close the above-mentioned air inlet 121. The hinge motion mechanism for driving the smoke shield 14 to deflect can adopt a conventional hinge motion mechanism in the prior art, which will not be described in detail here.

[0028] See also Figure 4 , the front side wall of the smoke hood 12 is tilted backward from top to bottom. Part of the front side wall of the smoke hood 12 is recessed toward the inside of the housing 1 to form a smoke collecting recess 120, and the above-mentioned air inlet 121 is opened in the smoke collecting recess 120. When the smoke baffle 14 is in a state of closing the air inlet 121, the smoke baffle 14 is also stored in the smoke collecting recess 120 as a whole. The design of the smoke collecting recess 120 can not only play the effect of collecting smoke and reduce the escape of oil smoke, but also improve the overall spatial pressure of the range hood and enhance the user experience.

[0029] Combination Figure 2When the smoke baffle 14 is in the state of opening the air inlet 121, there is a gap 3 between the side edge of the smoke baffle 14 and the front side wall of the housing 1. In order to prevent smoke from escaping from the gap 3, a shielding member 2 is provided on the back of the smoke baffle 14, and the shielding member 2 extends from the back of the smoke baffle 14 toward the inside of the housing 1. The shielding member 2 is a bent T-shaped structure as a whole, which includes a transverse extension portion 21 and a longitudinal extension portion 22 connected to the transverse extension portion 21. The transverse extension portion 21 is connected to the back of the smoke baffle 14 and arranged along the length direction of the smoke baffle 14 (that is, along the left and right direction). The length of the transverse extension portion 21 is slightly smaller than the length of the smoke baffle 14. The longitudinal extension portion 22 extends from the middle of the transverse extension portion 21 toward the inside of the housing 1. The transverse extension portion 21 and the transverse extension portion 21 are both hollow inside to form a smoke channel 20, and the smoke channel 20 is also T-shaped as a whole. One end of the longitudinal extension part 22 away from the transverse extension part 21 is open, and the open end is the smoke outlet 202. The bottom surface of the shielding member 2 is a convex curved structure. Specifically, air inlet holes 2010 are provided on the bottom wall of the transverse extension part 21 and the bottom wall of the longitudinal extension part 22, and each air inlet hole 2010 together constitutes the smoke inlet 201 of the shielding member 2. The arrangement of the above-mentioned air inlet holes 2010 can make the oil smoke be sucked into the smoke channel 20 during the flow along the shielding member 2, that is, the negative pressure range is distributed more widely. When the smoke baffle 14 is in the state of opening the air inlet 121, the shielding member 2 is located below the gap between the smoke baffle 14 and the housing 1, and the smoke outlet 202 of the shielding member 2 is located in the housing 1 or at the air inlet 121. The above-mentioned air inlet holes 2010 are strip holes, and the length direction of each strip hole is parallel to the length direction of the smoke baffle 14.

[0030] When the smoke baffle 14 is in a state of closing the air inlet 121 , the shielding member 2 is correspondingly hidden in the casing 1 .

[0031] The smoke baffle 14 is rotatable around a first axis extending left and right and is arranged on the casing 1. The cross-section of the shielding member 2 (including the transverse extension portion 21 and the longitudinal extension portion 22) is an arc-shaped cross-section, and the arc-shaped cross-section is centered on the above-mentioned first axis. The above-mentioned structural design of the shielding member 2 can, on the one hand, avoid interference between the shielding member 2 and the casing 1 or other components during the rotation of the smoke baffle 14, and on the other hand, it is also beneficial to guide the smoke, so that the smoke can smoothly enter the smoke hood 12.

[0032] See also Figure 2When the smoke baffle 14 is opened, the shielding member 2 on the smoke baffle 14 can be shielded under the gap between the smoke baffle 14 and the housing 1, improving the problem of oil smoke escaping from the gap 3. On this basis, the shielding member 2 is also provided with a smoke channel 20 and a smoke inlet 201 and a smoke outlet 202 connected to the smoke channel 20, so that the negative pressure range can be extended outward, and the smoke is less likely to escape from the above-mentioned gap 3. On the other hand, even when the smoke concentration is high, the smoke that cannot enter the air inlet 121 in time can enter the housing 1 through the smoke inlet 201, the smoke channel 20 and the smoke outlet 202 of the smoke baffle 14, avoiding the smoke from escaping from the edge of the smoke baffle 14, and improving the overall oil smoke extraction effect of the range hood.

Claims

1. A range hood, comprising: The casing (1) has an air inlet (121) formed on its front side wall; a smoke shield (14) rotatably connected to the housing (1) and capable of opening and closing the air inlet (121); when the smoke shield (14) is in a state of opening the air inlet (121), a gap exists between the smoke shield (14) and the front side wall of the housing (1); The invention is characterized in that: the smoke shield (14) is also provided with a shielding member (2) extending toward the inside of the casing (1); the shielding member (2) is also configured with a smoke channel (20) and a smoke inlet (201) and a smoke outlet (202) connected to the smoke channel (20); when the smoke shield (14) is in a state of opening the air inlet (121), the shielding member (2) is located below the gap, and the smoke outlet (202) is located inside the casing (1) or at the air inlet (121).

2. The range hood according to claim 1, characterized in that: Air inlet holes (2010) are distributed on the bottom wall of the shielding member (2), and the air inlet holes (2010) together constitute the smoke inlet (201).

3. The range hood according to claim 2, characterized in that: The shielding member (2) comprises a transverse extension portion (21) and a longitudinal extension portion (22) connected to the transverse extension portion (21); the transverse extension portion (21) is connected to the smoke baffle (14) and arranged along the length direction of the smoke baffle (14); the longitudinal extension portion (22) extends from the transverse extension portion (21) toward the inside of the casing (1); the transverse extension portion (21) and the transverse extension portion (21) are both hollow inside to form the smoke passage (20); at least one of the transverse extension portion (21) and the longitudinal extension portion (22) is provided with the air inlet hole (2010); and the smoke outlet (202) is provided at one end of the longitudinal extension portion (22) away from the transverse extension portion (21).

4. The range hood according to claim 3, characterized in that: Each of the air inlet holes (2010) is a strip-shaped hole, and the length direction of each strip-shaped hole is parallel to the length direction of the smoke baffle (14).

5. The range hood according to claim 4, characterized in that: The longitudinal extension portion (22) is connected to the middle portion of the transverse extension portion (21), and the smoke channel (20) is T-shaped as a whole.

6. The range hood according to claim 1, characterized in that: The bottom surface of the shielding member (2) is an outwardly convex curved structure.

7. The range hood according to claim 1, characterized in that: The shielding member (2) is arranged on the back side of the smoke shield (14); when the smoke shield (14) is in a state of closing the air inlet (121), the shielding member (2) is hidden in the casing (1).

8. The range hood according to any one of claims 1 to 7, characterized in that: The smoke baffle (14) is rotatably arranged on the housing (1) around a first axis extending leftward and rightward, and the cross section of the shielding member (2) is arc-shaped, with the first axis as the center.

9. The range hood according to any one of claims 1 to 7, characterized in that: The front side wall of the casing (1) is partially recessed toward the inside of the casing (1) to form a smoke collecting recess (120), and the air inlet (121) is arranged at the position of the smoke collecting recess (120).

10. The range hood according to claim 9, characterized in that: When the smoke baffle (14) is in a state of closing the air inlet (121), the smoke baffle (14) is also stored in the smoke collecting recess (120).

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