Range hood
By designing a range hood with a smoke collection chamber and an inclined baffle unit, the problems of insufficient smoke collection and anti-interference capabilities of top-suction range hoods are solved, achieving a more efficient oil fume removal and user experience.
Patent Information
- Application Number
- CN202420630805.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-29
AI Technical Summary
Existing ceiling-type range hoods have poor smoke collection and anti-interference capabilities, which causes smoke to escape along the side walls of the cavity when it is not discharged in time, especially when people are walking.
A range hood is designed, in which an air inlet plate forms a smoke collection chamber, which gradually increases in size from bottom to top in a first direction. The side of the smoke collection chamber is used to block smoke, and the smoke collection effect is improved by an inclined baffle unit and a chamfer design. The smoke extraction path is optimized in combination with multiple air inlets.
It improves the smoke collection ability of the range hood, reduces the impact of external disturbances, improves the oil fume extraction efficiency and user experience, and has a simple structure and low cost.
Smart Images
Figure CN222597822U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kitchen appliances, in particular to a range hood. Background Art
[0002] At present, the lower cavity of some ceiling-type range hoods is a concave smoke-collecting cavity, and the cavity size gradually shrinks from the bottom to the top, resulting in poor smoke-collecting ability. When the smoke in the cavity is not discharged in time, it will escape along the side wall of the cavity; in particular, the anti-interference ability is poor, and people walking nearby will cause the smoke accumulated in the cavity to escape. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a range hood in order to overcome the defects of the prior art in that the smoke collection ability and the anti-interference ability are relatively poor.
[0004] The utility model solves the above technical problems through the following technical solutions:
[0005] A range hood comprises a box body, wherein the box body comprises a box body main body and an air inlet plate, the lower end of the box body main body is open, the air inlet plate is connected to the lower end of the box body main body and blocks the opening at the lower end of the box body main body, the box body and the air inlet plate form an air inlet cavity, and the range hood comprises a box body, wherein the air inlet plate is recessed along a first direction toward the inside of the air inlet cavity to form a smoke collecting cavity, the smoke collecting cavity is arranged on a side of the air inlet plate away from the air inlet cavity, the area of the smoke collecting cavity in a cross section parallel to a first plane gradually increases from bottom to top along the first direction, and the first plane is perpendicular to the first direction.
[0006] In this solution, the smoke collecting chamber gradually increases from bottom to top in a first direction. After the smoke enters the smoke collecting chamber, the side surfaces of the smoke collecting chamber have a certain blocking effect on the smoke accumulated inside the smoke collecting chamber, thereby improving the smoke collecting ability of the range hood and reducing the impact of external disturbances.
[0007] Preferably, the air inlet plate includes an upper plate, a baffle and a bottom plate, the lower side of the baffle is connected to the bottom plate, the upper side of the baffle is connected to the upper plate, and the baffle and the upper plate form the smoke collecting chamber.
[0008] In this solution, the baffle is connected to the upper plate and the bottom plate, and a smoke collecting chamber is formed between the baffle and the upper plate, which has a simple structure and low cost.
[0009] Preferably, a chamfer is provided at a connection between the bottom plate and the baffle plate, and / or a chamfer is provided at a connection between the baffle plate and the upper plate.
[0010] In this solution, chamfers are set at the connection between the bottom plate and the baffle, and chamfers are set at the connection between the upper plate and the baffle to reduce the risk of injury to the human body or other objects caused by sharp connections. At the same time, the connections can be made smoother and neater, thereby improving the texture of the appearance and avoiding the accumulation of difficult-to-clean oil stains in the gaps at the connections, thereby improving the user experience.
[0011] Preferably, the radius of the chamfer is 8-20 mm.
[0012] In this solution, the chamfer radius is limited to 8-20 mm to prevent the connection between the bottom plate and the baffle plate and the connection between the baffle plate and the upper plate from being too narrow and difficult to clean.
[0013] Preferably, the baffle extends along the circumference of the upper plate, and the baffle includes a plurality of baffle units connected to different sides of the upper plate.
[0014] In this solution, different sides of the upper plate are connected with a plurality of baffle units, which increases the anti-interference capability of the range hood and has a simple structure and low cost.
[0015] Preferably, at least one of the baffle units is inclined from top to bottom toward the center direction of the bottom plate, and an angle between the bottom plate and the baffle unit is 50°-70°.
[0016] In this solution, the baffle unit is inclined to form a smoke collecting chamber between the baffle and the upper plate. The oil smoke rises to the smoke collecting chamber. The inclined baffle unit can block the smoke in the smoke collecting chamber. The smoke collecting chamber is formed by using the baffle unit, which has a simple structure and low manufacturing process requirements, thereby reducing costs.
[0017] Preferably, at least one of the baffle units is provided with a first air inlet, and the first air inlet is connected to the smoke collecting chamber and the air inlet chamber.
[0018] In this solution, a first air inlet is provided on the baffle unit, and the oil fume near the baffle unit is sucked into the air inlet chamber through the first air inlet, thereby accelerating the oil fume suction efficiency and preventing the oil fume near the baffle unit from overflowing or being disturbed and diffused.
[0019] Preferably, in the width direction of the range hood, the air inlet plate is tilted downward from front to back, a second air inlet is opened at the front end of the upper plate, and the second air inlet connects the smoke collecting chamber and the air inlet chamber.
[0020] In this solution, the air inlet plate is tilted to form a smoke gathering at the front end of the upper plate, and a second air inlet is opened at the gathering point to quickly remove the gathered oil smoke and improve the oil smoke removal efficiency.
[0021] Preferably, a third air inlet is provided on the rear end of the bottom plate, and the third air inlet is connected to the smoke collecting chamber and the air inlet chamber.
[0022] In this solution, a third air inlet is opened at the rear end of the bottom plate to remove the oil smoke near the rear of the range hood and improve the overall oil smoke extraction effect.
[0023] Preferably, the range hood further comprises an oil collecting box, the oil collecting box is connected to the housing, and the oil collecting box is correspondingly arranged below the third air inlet.
[0024] In this solution, because the air inlet plate is tilted, the condensed oil stains flow along the air inlet plate to the rear of the range hood under the action of their own gravity, and flow out through the third air inlet. An oil collection box is arranged below the third air inlet to facilitate the collection and cleaning of the oil stains.
[0025] The positive progressive effect of the utility model is that the utility model discloses a range hood, in which the smoke collecting chamber gradually increases from bottom to top in a first direction, and after the smoke enters the smoke collecting chamber, the side surface of the smoke collecting chamber has a certain blocking effect on the smoke accumulated inside the smoke collecting chamber, thereby improving the smoke collecting ability of the range hood and reducing the influence of external disturbances. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is an axial view of an embodiment of the utility model.
[0027] Figure 2 The figure is a schematic structural diagram of an air inlet plate according to an embodiment of the utility model.
[0028] Figure 3 It is a partially enlarged schematic diagram of an air inlet plate according to an embodiment of the utility model.
[0029] Figure 4 It is a bottom view of the air inlet plate along the first direction according to an embodiment of the utility model.
[0030] Description of reference numerals:
[0031] Box body 100
[0032] Air inlet plate 101
[0033] Smoke chamber 102
[0034] Bottom plate 103
[0035] Baffle unit 104
[0036] Upper board 105
[0037] First chamfer 106
[0038] Second chamfer 107
[0039] Air inlet cavity 108
[0040] First air inlet 201
[0041] Second air inlet 202
[0042] The third air inlet 203
[0043] Oil box 300 DETAILED DESCRIPTION
[0044] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.
[0045] like Figure 1-Figure 4 As shown, this embodiment discloses a range hood, including a box body, the box body including a box body 100 and an air inlet plate 101, the lower end of the box body 100 is open, the air inlet plate 101 is connected to the lower end of the box body 100 and blocks the opening of the lower end of the box body 100, the box body 100 and the air inlet plate 101 form an air inlet cavity 108, the air inlet cavity 108 is connected to the fan of the range hood, and the oil smoke is discharged to the outside through the air inlet cavity 108 under the action of the fan.
[0046] like Figure 1 As shown, the air inlet plate 101 is recessed along a first direction toward the inside of the air inlet cavity 108 to form a smoke collecting cavity 102. The smoke collecting cavity 102 is arranged on a side of the air inlet plate 101 away from the air inlet cavity 108, and the smoke collecting cavity 102 collects the oil smoke. The first direction is perpendicular to the plane of the air inlet plate 101 and extends from bottom to top.
[0047] like Figure 2 As shown, the area of the smoke collecting chamber 102 on the cross section parallel to the first plane gradually increases from bottom to top along the first direction, and the first plane is perpendicular to the first direction. The smoke collecting chamber 102 gradually increases from bottom to top in the first direction, and the oil smoke is attracted by the range hood, and the smoke moves upward until it reaches the smoke collecting chamber 102. After the smoke enters the smoke collecting chamber 102, even if the smoke is not discharged in time, the side of the smoke collecting chamber 102 has a certain blocking effect on the smoke accumulated inside the smoke collecting chamber 102, preventing the smoke from moving downward out of the smoke collecting chamber 102, thereby improving the smoke collecting ability of the range hood and reducing the influence of external disturbances.
[0048] like Figure 2 As shown, the air inlet plate 101 includes an upper plate 105, a baffle and a bottom plate 103, the lower side of the baffle is connected to the bottom plate 103, the upper side of the baffle is connected to the upper plate 105, and a smoke collecting chamber 102 is formed between the baffle and the upper plate 105, and the first direction is perpendicular to the plane where the bottom plate 103 is located and extends from bottom to top. The baffle is connected to the upper plate 105 and the bottom plate 103, and a smoke collecting chamber 102 is formed between the baffle and the upper plate 105, which has a simple structure and low cost.
[0049] like Figure 3As shown, in this embodiment, a first chamfer 106 is provided at the connection between the bottom plate 103 and the baffle, and a second chamfer 107 is provided at the connection between the baffle and the upper plate 105. The first chamfer 106 and the second chamfer 107 can reduce the damage caused by the sharp connection to the human body or other objects, and at the same time make the connection smoother and neater, thereby improving the texture of the appearance, avoiding the accumulation of difficult-to-clean oil stains in the gap of the connection, and improving the user experience. In other embodiments, the first chamfer 106 can be provided only at the connection between the bottom plate 103 and the baffle, or the second chamfer 107 can be provided only at the connection between the baffle and the upper plate 105 as needed.
[0050] In this embodiment, the radius of the first chamfer 106 and the second chamfer 107 is 8-20 mm. For example, the radius can be 8 mm, 14 mm, or 20 mm. When the chamfer radius is limited to 8-20 mm, oil stains will condense on the inner wall of the smoke collecting chamber 102 during the use of the range hood. When the second chamfer 107 is limited to 8-20 mm, it can be avoided that the connection between the baffle plate and the upper plate 105 is too narrow and difficult to clean. When the range hood is used, oil stains will also condense on the inner wall of the air inlet chamber 108. When the first chamfer 106 is limited to 8-20 mm, it can be avoided that the connection between the bottom plate 103 and the baffle plate is too narrow and difficult to clean.
[0051] In other alternative embodiments, the radii of the first chamfer 106 and the second chamfer 107 may be other values, depending on the size of the upper plate 105, the bottom plate 103, and the baffle. The radii of the first chamfer 106 and the second chamfer 107 may be the same or different.
[0052] like Figure 1 and Figure 4 As shown in FIG. 1 , the baffle extends along the circumference of the upper plate 105, and the baffle includes a plurality of baffle units 104 connected to different sides of the upper plate 105. In this embodiment, four baffle units 104 are connected to the periphery of the upper plate 105, and the four baffle units 104 are inclined from top to bottom toward the center direction of the bottom plate 103. In this embodiment, the angle between the bottom plate 103 and the baffle unit 104 is as shown in FIG. Figure 3 The angle θ shown is 50°. Under the premise that the depth of the smoke collecting chamber 102 in the first direction is the same, the space formed between the upper plate 105 and the baffle unit 104 is relatively large, and the baffle unit 104 can effectively prevent the oil smoke from overflowing.
[0053] In other alternative embodiments, θ may be set to 70° to facilitate the sliding of condensed oil droplets on the baffle unit 104 and facilitate subsequent cleaning.
[0054] In other alternative embodiments, θ=60° may also be set to balance the smoke blocking and anti-interference effects with the cleaning requirements.
[0055] Of course, the specific value of the angle θ between the bottom plate 103 and the baffle unit 104 is not limited to the above three examples, and any value between 50°-70° is acceptable, and the angles between different baffle units 104 and the bottom plate 103 may be the same or different. When θ<50°, the gap between the bottom plate 103 and the baffle unit 104 is too small to be cleaned, and the depth of the smoke collecting chamber 102 in the first direction is too shallow. If the depth is increased, the baffle unit 104 will be too long, and the air inlet surface facing the cooker will be too small when the dimensions of the range hood are fixed. When θ>70°, the baffle unit 104 cannot effectively prevent the oil smoke in the smoke collecting chamber 102 from overflowing.
[0056] In other alternative embodiments, at least one baffle unit 104 may be provided according to the shape of the upper plate 105 and actual needs, and the remaining baffles may be parallel to the first direction or away from the first direction from top to bottom, which is not specifically limited here.
[0057] The baffle units 104 are connected to different sides of the upper plate 105, which increases the anti-interference capability of the range hood, and has a simple structure and low cost. The baffle units 104 are inclined to form a smoke gathering space between the baffle and the upper plate 105, and the smoke rises to the smoke gathering chamber 102. The inclined baffle units 104 can block the smoke in the smoke gathering chamber 102. The smoke gathering chamber 102 is formed by using the baffle units 104, which has a simple structure and low manufacturing process requirements, thereby reducing costs.
[0058] In this embodiment, the baffle units 104 on the left and right sides of the range hood are each provided with a first air inlet 201, and the first air inlet 201 connects the smoke chamber 102 and the air inlet chamber 108. The first air inlet 201 is provided on the baffle units 104 on the left and right sides of the range hood, and the oil smoke near the baffle units 104 is sucked into the air inlet chamber 108 through the first air inlet 201, thereby accelerating the oil smoke suction efficiency, preventing the oil smoke from escaping from the left and right sides of the range hood by itself, and improving the use effect. In other embodiments, the first air inlet 201 can also be provided on different baffle units 104 of the range hood as needed. Preferably, the first air inlet 201 is provided on all four sides of the range hood, front, back, left, and right, to improve the oil smoke adsorption efficiency, further prevent smoke overflow, and improve the use experience.
[0059] like Figure 1 As shown, in the width direction of the range hood, the air inlet plate 101 is tilted downward from front to back, and a second air inlet 202 is provided at the front end of the upper plate 105, and the second air inlet 202 communicates with the smoke collecting chamber 102 and the air inlet chamber 108. The air inlet plate 101 is tilted, and smoke is gathered at the front end of the upper plate 105. The second air inlet 202 is provided at the gathering place to quickly remove the gathered oil smoke and improve the oil smoke removal efficiency.
[0060] A third air inlet 203 is provided at the rear end of the bottom plate 103, and the third air inlet 203 connects the smoke collecting chamber 102 and the air inlet chamber 108. The third air inlet 203 is provided at the rear end of the bottom plate 103 to remove the oil smoke near the rear of the range hood and improve the overall oil smoke absorption effect.
[0061] The range hood further includes an oil receiving box 300, which is connected to the housing and is correspondingly arranged below the third air inlet 203, specifically, the oil receiving box 300 is arranged directly below the third air inlet 203. Because the air inlet plate 101 is arranged at an angle, the condensed oil stains flow along the air inlet plate 101 to the rear of the range hood under the action of their own gravity and flow out through the third air inlet 203. The oil receiving box 300 is correspondingly arranged below the third air inlet 203, so that the oil stains can be collected and cleaned conveniently.
[0062] In this embodiment, the oil collecting box 300 is in an elongated shape. Because the oil collecting box 300 needs to be frequently disassembled and cleaned, the elongated oil collecting box 300 is convenient to align with the third air inlet 203 during installation, and the installation is relatively simple. In addition, the elongated oil collecting box 300 has a larger volume, which reduces the number of times the oil collecting box 300 is disassembled and assembled, thereby improving the user experience.
[0063] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.
Claims
1. A range hood, comprising a box, the box comprising a box body and an air inlet plate, the lower end of the box body is open, the air inlet plate is connected to the lower end of the box body and blocks the opening at the lower end of the box body, the box body and the air inlet plate form an air inlet cavity, characterized in that: The air inlet plate is recessed along a first direction toward the interior of the air inlet cavity to form a smoke collecting cavity. The smoke collecting cavity is arranged on a side of the air inlet plate away from the air inlet cavity. The area of the smoke collecting cavity in a cross section parallel to a first plane gradually increases from bottom to top along the first direction. The first plane is perpendicular to the first direction.
2. The range hood according to claim 1, characterized in that: The air inlet plate comprises an upper plate, a baffle and a bottom plate, the lower side of the baffle is connected to the bottom plate, the upper side of the baffle is connected to the upper plate, and the baffle and the upper plate form the smoke collecting chamber.
3. The range hood according to claim 2, characterized in that: A chamfer is provided at a connection between the bottom plate and the baffle plate, and / or a chamfer is provided at a connection between the baffle plate and the upper plate.
4. The range hood according to claim 3, characterized in that: The radius of the chamfer is 8-20 mm.
5. The range hood according to claim 2, characterized in that: The baffle extends along the circumference of the upper plate, and the baffle includes a plurality of baffle units connected to different sides of the upper plate.
6. The range hood according to claim 5, characterized in that: At least one of the baffle units is inclined from top to bottom toward the center direction of the bottom plate, and an angle between the bottom plate and the baffle unit is 50°-70°.
7. The range hood according to claim 5, characterized in that: At least one of the baffle units is provided with a first air inlet, and the first air inlet is connected with the smoke collecting chamber and the air inlet chamber.
8. The range hood according to claim 2, characterized in that: In the width direction of the range hood, the air inlet plate is tilted downward from front to back, a second air inlet is provided at the front end of the upper plate, and the second air inlet is connected with the smoke collecting chamber and the air inlet chamber.
9. The range hood according to claim 8, characterized in that: A third air inlet is provided on the rear end of the bottom plate, and the third air inlet is connected with the smoke collecting chamber and the air inlet chamber.
10. The range hood according to claim 9, characterized in that: The range hood further comprises an oil receiving box, which is connected to the housing and is correspondingly arranged below the third air inlet.