Range hood and shell thereof
By adopting a combined fixing solution of horizontal flange and oil baffle in the range hood, the problem of grease leakage at the connection between the smoke hood and the casing is solved, a stronger fixing effect and a simple appearance are achieved, and additional decoration costs are reduced.
Patent Information
- Application Number
- CN202421655709.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-12
AI Technical Summary
In existing range hoods, grease is easily leaked from the connection between the smoke hood and the housing, which affects the user experience and increases the cost and structural complexity.
The bottom edge of the casing is provided with an outward-turned horizontal flange and an oil baffle, which together fix the smoke hood to form a horizontally extended connection structure. Folding edges and welding sealants are provided in the air flow channel to prevent grease from seeping out.
It effectively reduces grease seepage, improves fixing strength and appearance, saves decorative cover costs, and simplifies the structure.
Smart Images
Figure CN222911742U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of range hoods.
Background Art
[0002] In Asian regions, due to the traditional cooking habit of stir-frying, the oil content in the smoke generated during cooking is particularly high. Therefore, range hoods used to exhaust the cooking fumes generated during cooking have become essential household appliances in daily life. Existing range hoods generally have a housing and a smoke collecting hood, and the smoke collecting hood is suspended and fixed below the housing.
[0003] The gap of the connection structure between the smoke collecting hood and the housing is prone to oil seepage, affecting the user experience. To prevent oil seepage, the connection structure between the smoke collecting hood and the housing generally adopts a wall body fitting and fixing structure extending along the height direction of the range hood. Thus, the connection structure between the smoke collecting hood and the housing is partially exposed above the cover plate, and the screws or rivets used for connection and fixation are exposed, affecting the appearance. Therefore, a decorative cover needs to be installed to cover it, which not only increases the cost but also makes the structure of the range hood product complex.
[0004] Unless there is sufficient evidence to support it, the prior art described herein does not mean that these prior arts were known to those of ordinary skill in the art related to this application before the filing date of this application.
Summary of the Invention
[0005] An object of an embodiment of this application is to propose an improved range hood and its housing for at least one of the above technical problems and / or other possible technical problems not mentioned in this application.
[0006] According to a first aspect of this application, an embodiment of this application provides a housing for a range hood, which is configured to be suitable for fixing the smoke collecting hood of the range hood located below it. The bottom edge of the housing is provided with an outwardly turned horizontal flange; a baffle plate is fixedly attached to the lower surface of the horizontal flange; the horizontal flange and the baffle plate together serve as a flange for fixing the smoke collecting hood. Thus, the connection structure between the housing and the smoke collecting hood extends substantially horizontally, and a new fixing solution between the housing and the smoke collecting hood is proposed.
[0007] In one or some embodiments, the inner end edge of the baffle plate extends to the inside of the housing and is bent downward to form a folded edge; the bottom surface of the baffle plate is configured to be suitable for fitting against the flange edge of the smoke collecting hood, and a connection seam is formed between the bottom surface of the baffle plate and the flange edge of the smoke collecting hood; when the smoke collecting hood is fixed to the housing, the folded edge is placed in the air flow channel of the range hood, and the end of the folded edge is lower than the connection seam. The folded edge is arranged in this way, which helps to reduce or avoid the oil in the range hood from seeping out through the connection seam.
[0008] In one or some embodiments, the inner edge of the oil baffle extends to the inner side of the casing; the bottom surface of the oil baffle is arranged to be adapted to fit against the flange edge of the smoke collecting hood, and a connecting seam is formed between the bottom surface of the oil baffle and the flange edge of the smoke collecting hood; when the smoke collecting hood is fixed to the casing, the inner edge of the oil baffle is placed in the air flow channel of the range hood, and the inner edge of the oil baffle is arranged to be adapted to guide the grease to flow away from the connecting seam. The inner edge of the oil baffle is arranged in this way, which helps to reduce or avoid the grease in the range hood from seeping out through the connecting seam.
[0009] In one or some embodiments, a welding sealant is provided between the horizontal flange and the oil baffle. Thus, it helps to reduce or avoid the grease in the range hood from seeping out through the gap between the horizontal flange and the oil baffle.
[0010] In one or some embodiments, the horizontal flange and the oil baffle are welded and fixed together; and / or
[0011] The horizontal flange and the oil baffle are fixed together by TOX riveting.
[0012] In one or some embodiments, the flange is provided with a fixing through hole for fixing the smoke collecting hood.
[0013] In one or some embodiments, the casing is integrally in a cuboid shape; the casing includes a U-shaped shell, a top wall and a rear wall; the U-shaped shell has its U-shaped opening facing backward; the horizontal flange is integrally formed on the U-shaped shell.
[0014] In one or some embodiments, the horizontal flange is integrally in a U shape.
[0015] According to the second aspect of the present application, embodiments of the present application provide a range hood, including a smoke collecting hood and the casing as described in any one of the above; the casing and the smoke collecting hood are arranged in sequence from top to bottom; the smoke collecting hood is suspended and fixed to the casing.
[0016] According to the third aspect of the present application, embodiments of the present application provide a range hood, including a filter screen, a smoke collecting hood and the casing as described above; the casing and the smoke collecting hood are arranged in sequence from top to bottom; the smoke collecting hood is suspended and fixed to the casing; the smoke collecting hood is provided with an air inlet, and the filter screen is arranged at the air inlet; the end of the folded edge is arranged to be adapted to guide the grease to drip onto the filter screen.
[0017] In one or some embodiments, it includes a cover plate, which is placed on the smoke collecting hood; both the horizontal flange and the oil baffle are located below the cover plate; both the horizontal flange and the oil baffle are blocked by the cover plate.
[0018] It should be noted here that the directional expressions such as "below", "bottom edge", "horizontal flanging", "lower surface", "inner end edge", "bottom surface", "inner side", "downward", and "from top to bottom" in this application are based on the normal usage state of the range hood if not otherwise specified.
[0019] It should be pointed out here that the "first", "second", and "third" appearing in this specification are only for descriptive purposes and do not indicate relative importance; moreover, they are not a definition of the quantity of the features they limit; in addition, they are not a definition of the logical relationship or sequential relationship of the features they limit.
[0020] The above technical solution content of this application is not used to describe all possible implementation manners of this application. Throughout the application, guidance is provided by listing examples in many places, and these examples can be used for various feasible combinations.
BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The following drawings only schematically illustrate and explain this application and do not limit the scope of this application, where:
[0022] Figure 1 is a schematic structural diagram of an embodiment of a range hood of this application;
[0023] Figure 2 is Figure 1 a top view of the shown range hood embodiment;
[0024] Figure 3 is along Figure 2 a cross-sectional view taken along line A-A in
[0025] Figure 4 is Figure 3 a partial enlarged structural view at B in
[0026] Figure 5 is a schematic structural diagram of an embodiment of a casing for a range hood of this application;
[0027] Figure 6 is Figure 5 a schematic structural diagram of the shown casing embodiment before installing the top wall and the rear wall;
[0028] Figure 7 is Figure 6 a schematic structural diagram of the shown structure from another perspective;
[0029] Figure 8 is along Figure 7 a cross-sectional view taken along line B-B in
[0030] Figure 9 is Figure 8Enlarged view of the local structure at D in the [Chinese context];
[0031] Figure 10 is Figure 5 Schematic diagram of the oil baffle of the shown casing embodiment;
[0032] Figure 11 is Figure 10 Schematic diagram of the structure of the shown oil baffle after applying welding sealant.
[0033] Reference numerals:
[0034] 1 - Casing, 2 - Horizontal flanging, 3 - Oil baffle, 4 - Hem, 5 - Fixed through-hole, 6 - U-shaped shell, 7 - Top wall, 8 - Rear wall, 9 - Welding sealant, 10 - Smoke collecting hood, 11 - Flange edge, 12 - Filter net, 13 - Cover plate, 14 - Air duct base, 15 - Electrical box, 16 - Centrifugal fan.
Detailed implementation manner
[0035] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by this application clearer, the following will further elaborate on this application in combination with the drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain this application, rather than to limit the protection scope of this application, and each embodiment may share the same view or multiple views for description, but all the features appearing in the same view cannot be interpreted as the features that a single embodiment must have. On the contrary, as long as they are not mutually exclusive technically, they can be combined in any suitable way. Moreover, for the sake of simplicity, different embodiments of different aspects may be presented in the same specific design, however, this presentation does not mean that the embodiments of these aspects should appear together. All possible decompositions and / or combinations of embodiments and / or technical features should also consider the description in the specification and the content that those skilled in the art can directly and unambiguously determine based on the description in the specification.
[0036] An embodiment of a range hood proposed in this application, as Figures 1 to 4 shown, includes a casing 1, a smoke collecting hood 10, a filter net 12, an air duct base 14, an electrical box 15 and a centrifugal fan 16. The casing 1 and the smoke collecting hood 10 are arranged in sequence from top to bottom. The smoke collecting hood 10 is suspended and fixed to the casing 1. The air duct base 14 and the electrical box 15 are both arranged at the top of the casing 1. The centrifugal fan 16 is arranged inside the casing 1. The filter net 12 is fixed to the smoke collecting hood 10.
[0037] The smoke collecting hood 10 is provided with an air inlet, and the filter net 12 is arranged at the air inlet, as Figure 3 and 4As shown. Specifically, the filter net 12 is embedded in the air inlet, and the oil fume airflow flowing into the air inlet will flow through the filter net 12. Thus, the filter net 12 filters out the grease in the oil fume airflow. A grease cup is arranged below the filter net 12, and the grease filtered out by the filter net 12 will eventually flow into this grease cup.
[0038] The centrifugal fan 16 arranged in the casing 1 is located above the filter net 12, as Figure 3 shown. Thus, the grease in the oil fume airflow has been filtered by the filter net 12 before flowing into the centrifugal fan 16, which helps to reduce the grease adhesion on the centrifugal fan 16. When the centrifugal fan 16 operates, it generates negative pressure to form an oil fume airflow. The smoke collecting hood 10 guides the oil fume airflow to the air inlet. The oil fume airflow flows through the filter net 12 at the air inlet, then the oil fume airflow flows into the airflow channel in the casing 1, the oil fume airflow flows through the centrifugal fan 16, then the oil fume airflow flows into the air duct seat 14, and then the oil fume airflow flows through the exhaust pipe and into the common flue.
[0039] The casing 1 is arranged to be suitable for fixing the smoke collecting hood 10 of the range hood located below it. The bottom edge of the casing 1 is provided with an outwardly turned horizontal flange 2, as Figure 4 、 5 and 6 shown. The lower surface of the horizontal flange 2 is fixedly attached with an oil baffle 3. Both the horizontal flange 2 and the oil baffle 3 are in the shape of thin plates. The upper surface of the oil baffle 3 is attached to the lower surface of the horizontal flange 2. The horizontal flange 2 and the oil baffle 3 as a whole form a lug extending horizontally away from the casing 1, as Figure 6 and 7 shown.
[0040] The horizontal flange 2 and the oil baffle 3 together serve as a flange for fixing the smoke collecting hood 10, as Figure 6 and 7 shown; in other words, the horizontal flange 2 and the oil baffle 3 together serve as a flange for fixing the smoke collecting hood 10. The flange is provided with fixing through holes 5 for fixing the smoke collecting hood 10. The number of the fixing through holes 5 is multiple. Each fixing through hole 5 sequentially penetrates through the horizontal flange 2 and the oil baffle 3. Each fixing through hole 5 is respectively penetrated by a corresponding screw or rivet and then placed into the smoke collecting hood 10, thereby fixing the flange and the smoke collecting hood 10 together, and thus realizing the suspension and fixation of the smoke collecting hood 10 on the casing 1.
[0041] The oil baffle 3 is in the shape of a U-shaped thin plate as Figure 10 and 11As shown. The oil baffle 3 is made by stamping a metal plate. The oil baffle 3 is arranged to be suitable for blocking the grease in the air flow channel of the range hood from oozing out through the gap between the smoke collecting hood 10 and the flange. Specifically, the oil baffle 3 is arranged to be suitable for blocking the grease in the air flow channel of the casing 1 from oozing out through the gap between the smoke collecting hood 10 and the flange. Furthermore, it should be noted that the oil baffle 3 is provided. Thus, both the horizontal flange 2 and the oil baffle 3 are used together as the flange for fixing the smoke collecting hood 10. Compared with fixing the smoke collecting hood 10 only by the horizontal flange 2, it helps to enhance the strength of the flange for fixing the smoke collecting hood 10 and improve the fixing effect of the smoke collecting hood 10.
[0042] The casing 1 is in an overall cuboid shape, as Figures 5 to 9 shown. It should be noted that Figure 7 is Figure 6 the structural schematic diagram of the structure shown from another perspective. Specifically, Figure 7 is Figure 6 the effect diagram seen from the perspective of looking at the structure shown from bottom to top.
[0043] The cuboid-shaped casing 1 includes a U-shaped shell 6, a top wall 7 and a rear wall 8, as Figure 5 shown. The U-shaped opening of the U-shaped shell 6 faces backward, the top wall 7 seals the top opening of the U-shaped shell 6, and the rear wall 8 seals the rear opening of the U-shaped shell 6. The U-shaped shell 6, the top wall 7 and the rear wall 8 are respectively made by stamping metal plates and then assembled together. The top wall 7 is provided with an air duct seat 14 and an electrical box 15, as Figures 1 to 3 shown. The air duct seat 14 is connected to the exhaust port of the centrifugal fan 16.
[0044] The horizontal flange 2 is integrally formed on the U-shaped shell 6, as Figure 4 , 5 or 6 shown. The horizontal flange 2 is in an overall U shape. The horizontal flange 2 is formed while the U-shaped shell 6 is made by stamping a metal plate. The bottom edges of the three side walls of the U-shaped shell 6 are respectively formed with the horizontal flange 2, and the horizontal flanges 2 of the three side walls are connected in sequence. The horizontal flange 2 is in an overall U shape. It should be noted that due to the limitation of the manufacturing process, there are gaps or joints at the connection of the horizontal flanges 2 of the three side walls.
[0045] The inner edge of the oil baffle 3 extends to the inside of the casing 1 and is bent downward to form a folded edge 4, as Figure 4 shown. The outer edge of the oil baffle 3 is located outside the casing 1 and is bent downward to form a downward bent edge, and this downward bent edge is located below the cover plate 13. The setting of this downward bent edge helps to improve the strength of the oil baffle 3 itself. The outer edge of the oil baffle 3 is located outside the air flow channel of the range hood and is isolated from the oil smoke air flow.
[0046] The bottom surface of the oil baffle 3 is arranged to be suitable for fitting to the flange edge 11 of the smoke collecting hood 10, asFigure 4 As shown. A connection seam is formed between the bottom surface of the oil baffle 3 and the flange edge 11 of the smoke collecting hood 10. The flange edge 11 of the smoke collecting hood 10 is provided with mounting through holes. The mounting through holes of the flange edge 11 of the smoke collecting hood 10 correspond one by one to the fixing through holes 5 of the flange. The mounting through holes of the flange edge 11 of the smoke collecting hood 10 and the corresponding fixing through holes 5 of the flange are for screws or rivets to pass through in sequence, so as to fix the flange edge 11 of the smoke collecting hood 10 and the corresponding flange together. Thus, the smoke collecting hood 10 is hung and fixed on the casing 1, such as Figure 3 shown.
[0047] After the smoke collecting hood 10 is hung and fixed on the casing 1, a cover plate 13 is placed on the smoke collecting hood 10. In other words, the cover plate 13 is placed on the smoke collecting hood 10, and the cover plate 13 covers the upper surface of the smoke collecting hood 10, improving the appearance beauty of the range hood, such as Figures 1 to 4 shown.
[0048] The horizontal flange 2 and the oil baffle 3 are both located below the cover plate 13, such as Figure 4 shown. The horizontal flange 2 and the oil baffle 3 are both covered by the cover plate 13. The connection structure between the smoke collecting hood 10 and the casing 1 is not visible because it is covered by the cover plate 13. In the normal use state of the range hood, the exposed surface of the casing 1 is smooth and flat, and the exposed surface of the casing 1 can be directly used as the appearance surface. Thus, the range hood does not need to be additionally equipped with a decorative cover, greatly saving costs. Specifically, in the normal use state of the range hood, the "exposed surface of the casing 1" is the outer surface of the casing 1 that the user can see in the conventional application scenario when standing in front of the range hood, that is, the outer surface of the U-shaped shell 6 above the cover plate 13.
[0049] When the smoke collecting hood 10 is fixed to the casing 1, the inner edge of the oil baffle 3 is placed in the air flow channel of the range hood, such as Figure 4 shown. The inner edge of the oil baffle 3 is set to be suitable for guiding the grease to flow in a direction away from the connection seam between the bottom surface of the oil baffle 3 and the flange edge 11 of the smoke collecting hood 10. Specifically, when the smoke collecting hood 10 is fixed to the casing 1, the folded edge 4 is placed in the air flow channel of the range hood, and the end of the folded edge 4 is lower than the connection seam. Thus, when the grease in the air flow channel flows down to the oil baffle 3, it will converge towards the end of the folded edge 4. Finally, the end of the folded edge 4 guides the converged grease to drip onto the filter screen 12, and then the grease flows into the oil cup.
[0050] A welding sealant 9 is provided between the horizontal flange 2 and the oil baffle 3. First, the welding sealant 9 is applied to the upper surface of the oil baffle 3, such as Figure 11As shown; then, place the horizontal flange 2 on the oil baffle 3, such that the upper surface of the oil baffle 3 fits against the lower surface of the horizontal flange 2, and apply a certain pressure so that the lower surface of the horizontal flange 2 presses against the upper surface of the oil baffle 3. Thus, the welding sealant 9 is evenly distributed between the upper surface of the oil baffle 3 and the lower surface of the horizontal flange 2; then, weld and fix the horizontal flange 2 and the oil baffle 3 together.
[0051] After the welding sealant 9 is cured, it effectively seals the gap between the horizontal flange 2 and the oil baffle 3, which helps prevent the grease in the air flow channel from seeping out through this gap. Preferably, the welding sealant 9 is cured using the baking heat energy in manufacturing processes such as spraying or electrophoresis during the manufacturing of the range hood. Thus, energy is saved. It should be noted that after the welding sealant 9 is cured, in addition to being able to play a sealing role, it can also play a role in improving the connection strength to a certain extent.
[0052] To enhance the fixing effect between the horizontal flange 2 and the oil baffle 3, the horizontal flange 2 and the oil baffle 3 are also fixed together by TOX riveting.
[0053] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the disclosure of the present application, even in the case of describing a single embodiment relative to a specific feature. The feature examples provided in the disclosure of the present application are for illustrative purposes only and not for limitation, unless otherwise expressly stated. In specific implementations, multiple features can be combined with each other according to actual needs and when technically feasible. Various substitutions, changes, and modifications can also be conceived without departing from the spirit and scope of the present application.
Claims
1. A housing for a range hood, configured to fix a fume hood (10) of the range hood located therebelow, characterized in that: The bottom edge of the housing (1) is provided with an outwardly turned horizontal flange (2); An oil baffle plate (3) is fixedly attached to the lower surface of the horizontal flange (2); The horizontal flange (2) and the oil baffle plate (3) are used together as a flange for fixing the smoke collecting hood (10).
2. The housing according to claim 1, characterized in that: The inner end edge of the oil baffle plate (3) extends to the inner side of the housing (1) and is bent downward to form a folded edge (4); The bottom surface of the oil baffle plate (3) is configured to be suitable for being attached to the flange edge (11) of the smoke collecting hood (10), and a connecting seam is formed between the bottom surface of the oil baffle plate (3) and the flange edge (11) of the smoke collecting hood (10); When the smoke collecting hood (10) is fixed to the casing (1), the folded edge (4) is placed in the air flow channel of the range hood, and the end of the folded edge (4) is lower than the connecting seam.
3. The housing according to claim 1, characterized in that: The inner end edge of the oil baffle plate (3) extends to the inner side of the casing (1); The bottom surface of the oil baffle plate (3) is configured to be suitable for being attached to the flange edge (11) of the smoke collecting hood (10), and a connecting seam is formed between the bottom surface of the oil baffle plate (3) and the flange edge (11) of the smoke collecting hood (10); When the smoke collecting hood (10) is fixed to the casing (1), the inner edge of the oil baffle plate (3) is placed in the air flow channel of the range hood, and the inner edge of the oil baffle plate (3) is configured to guide the grease to flow in a direction away from the joint.
4. The housing according to claim 1, 2 or 3, characterized in that: A welding sealant (9) is provided between the horizontal flange (2) and the oil baffle plate (3).
5. The housing according to claim 4, characterized in that: The horizontal flange (2) and the oil baffle plate (3) are welded and fixed together; and / or The horizontal flange (2) and the oil baffle plate (3) are fixed together by TOX riveting.
6. The housing according to claim 1, characterized in that: The flange is provided with a fixing through hole (5) for fixing the smoke collecting hood (10).
7. The housing according to claim 1, characterized in that: The housing (1) is in the shape of a rectangular parallelepiped as a whole; The housing (1) comprises a U-shaped housing (6), a top wall (7) and a rear wall (8); The U-shaped shell (6) has its U-shaped opening facing backwards; The horizontal flange (2) is integrally formed with the U-shaped shell (6).
8. The housing according to claim 1, wherein: The horizontal flange (2) is U-shaped as a whole.
9. A range hood, characterized in that: It comprises a smoke collecting hood (10) and a casing (1) according to any one of claims 1 to 8; The casing (1) and the smoke collecting hood (10) are arranged in sequence from top to bottom; The smoke collecting hood (10) is suspended and fixed on the casing (1).
10. A range hood, characterized in that: It comprises a filter (12), a smoke collecting hood (10) and a casing (1) as claimed in claim 2; The casing (1) and the smoke collecting hood (10) are arranged in sequence from top to bottom; The smoke collecting hood (10) is suspended and fixed on the casing (1); The smoke collecting hood (10) is provided with an air inlet, and the filter screen (12) is arranged at the air inlet; the end of the folded edge (4) is arranged to be suitable for guiding grease to drip onto the filter screen (12).
11. The range hood according to claim 9 or 10, characterized in that: It comprises a cover plate (13) which is placed on the smoke collecting hood (10); The horizontal flange (2) and the oil baffle plate (3) are both located below the cover plate (13); The horizontal flange (2) and the oil baffle plate (3) are both shielded by the cover plate (13).