Range hood and smoke deflector assembly thereof
By incorporating air inlets and a suspended oil cup on the smoke guide plate, the problem of insufficient air intake area is solved, improving air intake efficiency and grease collection efficiency, and enhancing the range hood's smoke extraction capacity and cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-03-10
AI Technical Summary
The existing smoke guide plate structure design has a limited air intake area, making it difficult to effectively guide and collect oil fumes, resulting in some oil fumes escaping and affecting the smoke exhaust effect.
An air inlet is provided on the smoke guide plate, and an oil cup is suspended on its outer surface. The oil cup and the smoke guide plate are spaced apart to form an airflow inlet. The guide surface extends obliquely to the air inlet. The combination of the oil guide channel and the oil cup design improves the air intake effect and grease collection efficiency.
It improves the air intake effect of the smoke guide plate, effectively collects the grease attached to the smoke guide plate, and enhances the smoke exhaust capacity and cleanliness of the range hood.
Smart Images
Figure CN223985225U_ABST
Abstract
Description
[Technical Field]
[0001] This application relates to the field of range hoods. [Background Technology]
[0002] In Asia, the traditional cooking method of stir-frying results in fumes with a particularly high oil content. Therefore, range hoods, used to extract cooking fumes, have become an essential household appliance. As people's demands for quality of life continue to rise, range hoods are constantly being upgraded and improved.
[0003] Currently, range hoods with smoke guide plates are increasingly favored by consumers due to their simple appearance and ease of cleaning. However, existing smoke guide plate designs still have some shortcomings. For example, traditional flat smoke guide plates have a simple structure, and air intake relies on the air intake gap formed by the interval between the smoke guide plate and the range hood body. The air intake area is limited, making it difficult to effectively guide and collect fumes, resulting in some fumes escaping and affecting the smoke extraction effect.
[0004] Unless there is sufficient evidence to support it, the prior art described herein does not imply an admission that such prior art was known to a person skilled in the art prior to the filing date of this application. [Summary of the Invention]
[0005] One objective of this application is to provide an improved range hood and its smoke guide plate assembly, addressing at least one of the above-mentioned technical problems and / or other possible technical problems not mentioned in this application.
[0006] According to a first aspect of this application, embodiments of this application provide a smoke guide plate assembly for a range hood, including a smoke guide plate and an oil cup; the smoke guide plate is provided with an air inlet; the oil cup is detachably suspended on the outer surface of the smoke guide plate and located below the air inlet, suitable for collecting grease dripping from the air inlet; when the oil cup is suspended on the outer surface of the smoke guide plate, an airflow inlet through the air inlet is formed between the oil cup and the outer surface of the smoke guide plate. The technical solution of this application helps to improve the air intake effect of the smoke guide plate.
[0007] In one or more embodiments, the air inlet is disposed in the middle of the smoke guide plate and extends along the width direction of the smoke guide plate; the outer surface of the smoke guide plate is divided into a left guide surface and a right guide surface by the air inlet.
[0008] In one or more embodiments, both the left and right guide surfaces extend horizontally. This facilitates the guidance of the oil fume airflow into the air inlet by the left and right guide surfaces.
[0009] In one or more embodiments, the left guide surface extends upward from left to right to the air inlet; the right guide surface extends upward from right to left to the air inlet. This facilitates the left and right guide surfaces in guiding the oil fume airflow into the air inlet.
[0010] In one or more embodiments, the left guide surface extends upwards from left to right to the air inlet; the right guide surface extends upwards from right to left to the air inlet. This facilitates the guidance of the oil fume airflow into the air inlet by the left and right guide surfaces, and also helps to improve the smoke collection effect of the left and right guide surfaces.
[0011] In one or more embodiments, the left guide surface arches upward from left to right and extends to the air inlet; the right guide surface arches upward from right to left and extends to the air inlet. This facilitates the guidance of the oil fume airflow into the air inlet by the left and right guide surfaces, and also helps to improve the smoke collection effect of the left and right guide surfaces.
[0012] In one or more embodiments, the left guide surface extends downward from left to right to the air inlet; the right guide surface extends downward from right to left to the air inlet. This facilitates the guidance of the oil fume airflow into the air inlet by the left and right guide surfaces. Therefore, the technical solution of this application not only improves the air intake effect of the smoke guide plate but also effectively collects the grease adhering to the smoke guide plate.
[0013] In one or more embodiments, the oil cup is elongated and extends along the width of the smoke guide plate.
[0014] In one or more embodiments, the smoke guide plate is formed by stamping from a single metal sheet; and / or
[0015] The air inlet is elongated; and / or
[0016] The oil cup, from bottom to top, blocks the air inlet; and / or
[0017] The periphery of the smoke guide plate forms an upward-extending flange; and / or
[0018] The smoke guide plate has a square-shaped edge profile.
[0019] According to a second aspect of this application, an embodiment of this application provides a range hood, including a smoke collection hood and a smoke guide plate assembly as described in any of the above claims; the smoke collection hood is provided with a downward-facing smoke collection chamber; the smoke guide plate of the smoke guide plate assembly is disposed within the smoke collection chamber.
[0020] In one or more embodiments, the smoke guide plate and the smoke collection chamber form a ring of air inlets; and / or
[0021] The smoke collection chamber is provided with an exhaust port, and the smoke guide plate blocks the exhaust port from bottom to top.
[0022] It should be noted that, unless otherwise specified, the directional expressions used in this application, such as "from top to bottom", "opening downwards", "opening upwards", "middle", "left side", "right side", "from left to right upwards", "from right to left upwards", "tilted downwards", "below", "extending upwards", and "directly in front", are based on the usual usage state of the range hood.
[0023] It should be noted that the terms "first" and "second" appearing in this specification are for descriptive purposes only and are not used to indicate relative importance; moreover, they do not define the number of features they define; furthermore, they do not define the logical or sequential relationship between the features they define.
[0024] The above-described technical solutions in this application are not intended to describe all possible implementations of this application. Throughout the application, numerous examples are provided to offer guidance, and these examples can be used in various feasible combinations. [Attached Image Description]
[0025] The following figures are for illustrative purposes only and do not limit the scope of this application, wherein:
[0026] Figure 1 This is a schematic diagram of the structure of an embodiment of a range hood according to this application;
[0027] Figure 2 yes Figure 1 Another structural schematic diagram of the range hood embodiment shown;
[0028] Figure 3 yes Figure 1 The diagram shows a structural schematic of the smoke guide plate assembly in an embodiment of the range hood.
[0029] Figure 4 yes Figure 1 An exploded view of a partial structure of the range hood embodiment shown.
[0030] Figure label:
[0031] 1-Oil cup, 2-Smoke guide plate, 3-Air inlet, 4-Left side guide surface, 5-Right side guide surface, 6-House, 7-Smoke collection hood, 8-Smoke collection chamber, 9-Filter screen, 10-Oil drain hole, 11-Front oil guide channel, 12-Rear oil guide channel, 13-First oil leak hole, 14-Second oil leak hole, 15-Fixed bracket.
Detailed Implementation Methods
[0032] To make the technical problems to be solved, the technical solutions, and the beneficial technical effects of this application clearer, the following will provide a more detailed description of this application in conjunction with the accompanying drawings and several exemplary embodiments. It should be understood that the specific embodiments described herein are only for explaining this application and are not intended to limit the scope of protection of this application. Various embodiments may share the same view or multiple views for description, but not all features appearing in the same view should be interpreted as features that an embodiment must possess. Instead, they can be combined in any suitable manner as long as they are not technically mutually exclusive. Moreover, for the sake of brevity, different embodiments of different aspects may be presented in the same specific design; however, such presentation does not mean that embodiments of these aspects should appear together. The disassembly and / or combination of all possible embodiments and / or technical features should also take into account the description in the specification and what a person skilled in the art can directly and unambiguously determine based on the description in the specification.
[0033] This application proposes an embodiment of a smoke guide plate assembly for a range hood, including a smoke guide plate 2 and an open-topped oil cup 1, such as... Figure 1 , 3 As shown in Figures 4 and 5, the smoke guide plate 2 is provided with an air inlet 3. An oil cup 1 is detachably suspended on the outer surface of the smoke guide plate 2 and located below the air inlet 3, suitable for collecting grease dripping from the air inlet 3. When the oil cup 1 is suspended on the outer surface of the smoke guide plate 2, an airflow inlet through the air inlet 3 is formed between the oil cup 1 and the outer surface of the smoke guide plate 2. It should be noted that the phrase "an airflow inlet through the air inlet 3 is formed between the oil cup 1 and the outer surface of the smoke guide plate 2" represents a breakthrough from the conventional understanding that "the oil cup is only used for collecting oil." This application ingeniously integrates the oil cup with the fume extraction channel, proposing a completely new technical approach.
[0034] An air inlet 3 extending along the width direction of the smoke guide plate 2 is provided in the middle of the smoke guide plate 2; in other words, an air inlet 3 extending along the depth direction of the range hood is provided in the middle of the smoke guide plate 2. "Depth direction of the range hood," as... Figure 1 As shown by the double-headed arrow D, which is perpendicular to the kitchen wall, the air inlet 3 is elongated.
[0035] The smoke guide plate 2 is a single piece. It is formed by stamping from a single sheet of metal. A flange extending upwards is formed around the perimeter of the smoke guide plate 2. The edge outline of the smoke guide plate 2 is square, as shown... Figure 1 , 3 As shown in Figure 4.
[0036] The outer surface of the smoke guide plate 2 is divided into a left guide surface 4 and a right guide surface 5 by the air inlet 3, as shown below. Figure 1 , 3As shown in Figure 4. The left guide surface 4 extends upwards from left to right to the air intake 3. The right guide surface 5 extends upwards from right to left to the air intake 3.
[0037] The right edge of the left guide surface 4 and the left edge of the right guide surface 5 are positioned opposite each other, spaced apart by the air inlet 3. Both the right edge of the left guide surface 4 and the left edge of the right guide surface 5 serve as the edges of the air inlet 3. Figure 4 As shown. Specifically, the right edge of the left guide surface 4 serves as the left edge of the air inlet 3; the left edge of the right guide surface 5 serves as the right edge of the air inlet 3.
[0038] By way of example, this application proposes another embodiment of a smoke guide plate assembly for a range hood, wherein the left guide surface 4 and the right guide surface 5 both extend horizontally. This embodiment focuses on illustrating the differences from the above embodiments; the same or similar parts of this embodiment can be referred to the above embodiments.
[0039] Exemplarily, this application proposes another embodiment of a smoke guide plate assembly for a range hood, wherein the left guide surface 4 extends upward from left to right to the air inlet 3; and the right guide surface 5 extends upward from right to left to the air inlet 3. This embodiment focuses on illustrating the differences from the above embodiments; the same or similar parts of this embodiment can be referred to the above embodiments.
[0040] Exemplarily, this application proposes another embodiment of a smoke guide plate assembly for a range hood, wherein the left guide surface 4 extends downward from left to right to the air inlet 3; and the right guide surface 5 extends downward from right to left to the air inlet 3. This embodiment focuses on illustrating the differences from the above embodiments; the same or similar parts of this embodiment can be referred to the above embodiments.
[0041] This application also proposes an embodiment of a range hood, including a housing 6, a smoke collection hood 7, and a smoke guide plate assembly embodiment as described above, such as... Figure 1 and 2 As shown. The casing 6 and the smoke hood 7 are arranged sequentially from top to bottom. The smoke hood 7 has a downward-facing smoke collection chamber 8. A centrifugal fan is installed inside the casing 6.
[0042] This range hood is a top-mounted type, and its overall shape is an inverted T. Figure 1 and 2 As shown.
[0043] The smoke guide plate 2 of the smoke guide plate assembly is disposed within the smoke collection chamber 8, such as... Figure 1 and 2 As shown. Among them, Figure 2This is a visual effect seen by a user standing directly in front of the range hood and looking horizontally at it when it is suspended and installed on the kitchen wall. From this perspective, the oil cup 1 of the smoke guide plate assembly is visible, while the smoke guide plate 2 is obscured by the smoke collection chamber 8 and is not visible.
[0044] Oil cup 1, detachably suspended on the outer surface of the smoke guide plate 2 and located below the air inlet 3, is suitable for collecting grease dripping from the air inlet 3, such as... Figures 1 to 3 As shown. When the oil cup 1 is suspended on the outer surface of the guide plate 2, the left edge of the oil cup 1 and the left guide surface 4 form a left airflow inlet that penetrates the air inlet 3, and the right edge of the oil cup 1 and the right guide surface 5 form a right airflow inlet that penetrates the air inlet 3. The left guide surface 4 extends upward from left to right to the air inlet 3; the right guide surface 5 extends upward from right to left to the air inlet 3, as shown. Figure 1 As shown. When the centrifugal fan is running, a negative pressure is created, generating an oil fume airflow. Part of the oil fume airflow flows along the left guide surface 4, passes through the left airflow inlet, then flows into the air inlet 3, then into the casing 6, flows through the centrifugal fan, and then is discharged outside the range hood and into the common flue; part of the oil fume airflow flows along the right guide surface 5, passes through the right airflow inlet, then flows into the air inlet 3, then into the casing 6, flows through the centrifugal fan, and then is discharged outside the range hood and into the common flue.
[0045] The front and rear edges of the smoke guide plate 2 are each integrally formed with oil guiding channels suitable for collecting grease on the inner surface of the smoke guide plate 2, such as... Figure 1 , 3 As shown in Figure 4, the oil guiding channel extends downwards and at an angle from the left and right edges of the smoke guide plate 2 toward the oil cup 1; thus, the grease in the oil guiding channel converges toward the oil cup 1 under the action of gravity. The oil guiding channel is provided with an oil drain hole, which is located above the oil cup 1; in other words, the oil drain hole is located at the lowest point of the oil guiding channel. This oil drain hole is designed to allow the grease in the oil guiding channel to flow through and into the oil cup 1.
[0046] The oil guiding channel is integrally formed on the inner surface of the smoke guide plate 2. Specifically, the oil guiding channel is formed on the inner surface of the smoke guide plate 2 by stamping. The oil guiding channel includes a front oil guiding channel 11 and a rear oil guiding channel 12, such as... Figure 3 and 4 As shown. The front oil guide channel 11 is formed at the front edge of the smoke guide plate 2. The rear oil guide channel 12 is formed at the rear edge of the smoke guide plate 2.
[0047] The outer surface of the smoke guide plate 2 connects the front oil guide channel 11 and the rear oil guide channel 12. The outer surface of the smoke guide plate 2 protrudes upwards relative to the front oil guide channel 11 and the rear oil guide channel 12 to form a smoke collection cavity, such as... Figure 1 and4 As shown.
[0048] Both the front oil guide channel 11 and the rear oil guide channel 12 serve as the edge of the air inlet 3, such as Figure 3 and 4 As shown. Specifically, the middle region of the wall of the front oil guide channel 11 is used as the front edge of the air inlet 3; the middle region of the wall of the rear oil guide channel 12 is used as the rear edge of the air inlet 3.
[0049] Oil leakage holes, including a first oil leakage hole 13 and a second oil leakage hole 14, such as Figure 3 As shown. A first oil drain hole 13 is located in the front oil guide channel 11. A second oil drain hole 14 is located in the rear oil guide channel 12. The front end of the oil cup 1 is detachably suspended from the front oil guide channel 11. The rear end of the oil cup 1 is detachably suspended from the rear oil guide channel 12, as shown. Figure 1 As shown.
[0050] The smoke collection chamber 8 is equipped with an exhaust port. A filter screen 9 is installed at the exhaust port of the smoke collection chamber 8. A smoke guide plate 2 is located below the filter screen 9, as shown below. Figure 1 As shown.
[0051] The filter screen 9 extends downwards from the periphery towards the center, converging downwards. The lowest part of the filter screen 9 is located directly above the air inlet 3. An oil drain hole 10 is provided at the lowest part of the filter screen 9. The oil drain hole 10 is used to drain the grease adhering to the filter screen 9. It should be noted that when the centrifugal fan is operating to extract fumes, the oil fume airflow, especially the oil fume airflow flowing in from the air inlet 3, may also pass through the oil drain hole 10 and flow into the range hood. Specifically, the filter screen 9 is made by stamping from a single piece of metal. The filter screen 9 is shaped like an inverted frustum of a pyramid, such as... Figure 4 As shown.
[0052] Filter screen 9 has several elongated oil fume holes, such as... Figure 4 As shown, each elongated fume vent has a guide flange extending along the direction of the fume airflow. Adjacent guide flanges together form grease guiding channels. Each grease guiding channel is adapted to guide the grease filtered by the filter screen 9 towards the grease drain hole 10. The grease that gathers at the grease drain hole 10 flows through the grease drain hole 10 and drips downwards, then passes through the air inlet hole 3, and finally falls into the grease cup 1.
[0053] When the centrifugal fan is running, it creates negative pressure, generating an airflow of oily fumes. This oily fumes flow through the exhaust port of the smoke collection chamber 8 into the casing 6, through the centrifugal fan, and then out of the range hood into the common flue. A filter screen 9 is installed at the exhaust port of the smoke collection chamber 8, which helps to significantly reduce the grease content of the oily fumes flowing into the common flue.
[0054] Oil cup 1 is elongated. Oil cup 1 extends along the width of the smoke guide plate 2; in other words, oil cup 1 extends along the depth of the range hood, such as... Figure 1 As shown, the oil cup 1 blocks the air inlet 3 from bottom to top. However, the oil cup 1 does not completely seal the air inlet 3; the oil fumes from both sides of the oil cup 1 can flow into the air inlet 3.
[0055] The smoke hood 7 is equipped with a fixed bracket 15, such as... Figure 4 As shown. The top of the fixing bracket 15 is fixed to the smoke hood 7. Specifically, the top of the fixing bracket 15 is provided with screw holes, and screws are passed through the screw holes to fix the top of the fixing bracket 15 to the smoke hood 7. The bottom of the fixing bracket 15 is used to detachably suspend the smoke guide plate 2. There are four fixing brackets 15. The bottom of the two rear fixing brackets 15 is used to rotatably suspend the rear part of the smoke guide plate 2; the bottom of the two front fixing brackets 15 is suitable for suspending the front part of the smoke guide plate 2 by means of a snap-fit connection.
[0056] The smoke guide plate 2 and the smoke collection chamber 8 form a ring of air inlets, such as Figure 1 As shown. When the centrifugal fan is running, it creates negative pressure and generates oil fume airflow. Part of the oil fume airflow flows through the air inlet ring, then into the casing 6, through the centrifugal fan, and then is discharged outside the range hood and into the public flue.
[0057] The oil leak hole is equipped with a support suitable for suspending the oil cup 1, such as... Figure 3 As shown. Specifically, a first support member is provided inside the first oil drain hole 13, and a second support member is provided inside the second oil drain hole 14. A first suspension member matching the first support member is provided at the front end of the oil cup 1. A second suspension member matching the second support member is provided at the rear end of the oil cup 1. The first suspension member is provided with a hook suitable for hanging on the first support member, and the second suspension member is provided with a hook suitable for hanging on the second support member. Of course, the cooperation between the first suspension member and the first support member, and the cooperation between the second suspension member and the second support member, can also refer to other existing feasible cooperation structures, such as snap-fit cooperation, magnetic cooperation, etc. Furthermore, the cooperation between the first suspension member and the first support member can also be different from the cooperation between the second suspension member and the second support member. For example, the first suspension member and the first support member can adopt a magnetic cooperation, while the second suspension member and the second support member can adopt a snap-fit cooperation.
[0058] By way of example, this application proposes another embodiment of a range hood, wherein the filter screen 9 is in the shape of an inverted pyramid. This embodiment focuses on illustrating the differences from the above embodiments; for the same or similar parts of this embodiment, please refer to the above embodiments.
[0059] Exemplarily, this application proposes another embodiment of a range hood, which is equipped with a lifting device. This lifting device is adapted to drive the smoke guide plate 2 to move up and down, so that the smoke guide plate 2 can switch between different positions. Thus, the smoke guide plate 2 can be positioned either within the smoke collection chamber 8 or moved down outside the smoke collection chamber 8. This embodiment focuses on illustrating the differences from the above embodiments; similar or identical parts of this embodiment can be referred to in the above embodiments.
[0060] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of this application, even when only a single embodiment is described with respect to a particular feature. The feature examples provided in this application are intended to be illustrative and not limiting, unless explicitly stated otherwise. In practice, multiple features can be combined with each other where technically feasible and according to actual needs. Various substitutions, modifications, and alterations are also conceived without departing from the spirit and scope of this application.
Claims
1. A smoke deflector assembly for a range hood, characterized in that: it comprises a smoke deflector (2) and an oil cup (1) ; the smoke deflector (2) is provided with an air inlet hole (3) ; the oil cup (1) is detachably hung on the outer surface of the smoke deflector (2) below the air inlet hole (3) and is adapted to collect oil and grease dripping from the air inlet hole (3) ; when the oil cup (1) is hung on the outer surface of the smoke deflector (2), the oil cup (1) and the outer surface of the smoke deflector (2) are spaced apart to form an air inlet opening through the air inlet hole (3). 2.The smoke deflector assembly according to claim 1, characterized in that: the air inlet hole (3) is arranged in the middle of the smoke deflector (2) and extends along the width direction of the smoke deflector (2) ; the outer surface of the smoke deflector (2) is divided into a left side flow guiding surface (4) and a right side flow guiding surface (5) by the air inlet hole (3). 3.The smoke deflector assembly according to claim 2, characterized in that: the left side flow guiding surface (4) and the right side flow guiding surface (5) both extend along the horizontal direction. 4.The smoke deflector assembly according to claim 2, characterized in that: the left side flow guiding surface (4) extends upward from left to right to the air inlet hole (3) ; the right side flow guiding surface (5) extends upward from right to left to the air inlet hole (3). 5.The smoke deflector assembly according to claim 4, characterized in that: the left side flow guiding surface (4) extends upward obliquely from left to right to the air inlet hole (3) ; the right side flow guiding surface (5) extends upward obliquely from right to left to the air inlet hole (3). 6.The smoke deflector assembly according to claim 4, characterized in that: the left side flow guiding surface (4) extends upward archingly from left to right to the air inlet hole (3) ; the right side flow guiding surface (5) extends upward archingly from right to left to the air inlet hole (3). 7.The smoke deflector assembly according to claim 2, characterized in that: the left side flow guiding surface (4) extends downward from left to right to the air inlet hole (3) ; the right side flow guiding surface (5) extends downward from right to left to the air inlet hole (3). 8.The smoke deflector assembly according to claim 2, characterized in that: the oil cup (1) is in the shape of a long strip; the oil cup (1) extends along the width direction of the smoke deflector (2). 9.The smoke deflector assembly according to any one of claims 1 to 8, characterized in that: the smoke deflector (2) is formed by punching a metal plate; and / or the air inlet hole (3) is in the shape of a long strip; and / or the oil cup (1) blocks the air inlet hole (3) from below to above; and / or the periphery of the smoke deflector (2) forms a rim extending upward; and / or the smoke deflector (2) is square in outline. 10.A range hood, characterized in that: it comprises a hood (7) and a smoke deflector assembly according to any one of the preceding claims; the hood (7) is provided with a smoke collecting cavity (8) with an opening facing downward; the smoke deflector (2) of the smoke deflector assembly is arranged in the smoke collecting cavity (8).
11. The extractor hood according to claim 10, characterized in that: the smoke guide plate (2) and the smoke gathering cavity (8) are spaced apart to form a ring of air inlets; and / or the smoke gathering cavity (8) is provided with an air outlet, and the smoke guide plate (2) blocks the air outlet from bottom to top.