Flow guide assembly for range hood and range hood
By introducing airflow guiding components and sound-absorbing parts into the range hood, and utilizing curved airflow guide plates and resonant cavity designs, the problems of turbulent airflow and high noise levels are solved, achieving the effects of noise reduction and easy cleaning.
Patent Information
- Application Number
- CN202520433113.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Existing range hoods suffer from turbulent airflow, resulting in high noise levels, elongated smoke paths, and difficulty in cleaning the smoke collection chamber and baffle.
The system employs a flow guiding component, including a flow guide plate and a sound-absorbing part. The flow guide plate is curved and protrudes from the center towards the chassis. It utilizes the wall-attachment effect to allow the oil fume airflow to directly enter the chassis flow channel. The sound-absorbing part is made of sound-absorbing and noise-reducing material to form a resonant cavity to absorb noise.
It solves the problem of airflow turbulence, reduces noise, shortens the path of cooking fumes, and improves cleaning convenience and user experience.
Smart Images
Figure CN223826304U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of home appliances, especially a guide component for a range hood and the range hood. BACKGROUND
[0002] The range hood mainly comprises a fan, a machine box, a smoke collecting cavity and a smoke baffle, the smoke collecting cavity is communicated with the machine box, the smoke baffle is arranged at the bottom opening of the smoke collecting cavity, and the edge of the smoke baffle and the edge of the bottom opening of the smoke collecting cavity form an air inlet.
[0003] As shown in Figure 1 The smoke baffle 200 of the existing range hood is a flat plate structure, and the upper surface of the smoke baffle 200 is in the shape of a shallow dish with a higher edge and a lower center. The oil fume flow enters the smoke collecting cavity 100 from the air inlet, and due to the wall attachment effect, the oil fume flow first flows downward along the lower upper surface of the smoke baffle 200, and then enters the flow channel 300 upward.
[0004] The defects of the existing range hood include that the upward flow and the downward flow can cause flow turbulence, the oil fume path is lengthened, more oil stains can be condensed in the oil fume flow, and the smoke collecting cavity 100, the smoke baffle 200 and the flow channel 300 are difficult to clean; in addition, a cyclone vortex X can be generated in the smoke collecting cavity 100 beside the air inlet, which affects the rapid discharge of the oil fume flow and causes loud noise. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a guide component for a range hood and the range hood, which solves the problem of flow turbulence in the existing range hood and has low noise.
[0006] To achieve this purpose, on the one hand, the utility model adopts the following technical scheme:
[0007] The guide component for the range hood comprises: an absorbing part made of a material with sound absorption and noise reduction capability; a guide plate buckled above the absorbing part; the guide plate is in a curved surface shape, and the middle part of the guide plate protrudes away from the absorbing part; and a smoke baffle located on the opposite sides of the absorbing part with the guide plate respectively.
[0008] In one preferred embodiment, noise reduction blind holes are formed in the absorbing part, the opening end of the noise reduction blind hole faces the guide plate, and a resonance cavity is formed between the noise reduction blind hole and the guide plate.
[0009] In one preferred embodiment, the distance between the bottom surface of all the noise reduction blind holes and the smoke baffle is within a set range.
[0010] In one preferred embodiment, the sound absorbing portion has a planar side facing the smoke baffle and a curved side facing the deflector plate, and the middle of the curved side protrudes towards the deflector plate.
[0011] In one preferred embodiment, the curved side of the sound absorbing portion is fitted to the inner surface of the deflector plate.
[0012] In one preferred embodiment, the four side edges of the sound absorbing portion are flush with the four side edges of the smoke baffle.
[0013] In one preferred embodiment, the bottom surface of the sound absorbing portion is fitted to the upper surface of the smoke baffle.
[0014] In one preferred embodiment, the four side edges of the deflector plate are flush with the four side edges of the smoke baffle.
[0015] In one preferred embodiment, the deflector plate has a central symmetry structure.
[0016] In another aspect, the utility model adopts the following technical solutions:
[0017] The range hood comprises a machine box and a smoke collecting cavity, the smoke collecting cavity is arranged below the machine box, the range hood further comprises the deflector assembly for the range hood, the deflector assembly is located in the smoke collecting cavity, and the middle of the deflector plate protrudes towards the machine box.
[0018] The deflector assembly for the range hood disclosed by the utility model comprises a sound absorbing portion, a deflector plate and a smoke baffle, the deflector plate is curved, the middle of the deflector plate protrudes away from the sound absorbing portion, by virtue of the wall attachment effect, the oil fume flow is directly sucked into the flow channel of the machine box along the curved surface of the deflector plate, the path for collecting the oil fume is shortened, the cyclone vortex on both sides of the smoke collecting cavity is weakened, the problem that the space waste of the smoke collecting cavity affects the smoke suction effect is solved, and the noise is low; the sound absorbing portion is made of a material with sound absorbing and noise reducing capability, part of the noise can be absorbed, the noise is further reduced, and the use experience is good.
[0019] The range hood disclosed by the utility model comprises the deflector assembly for the range hood, the oil fume flow is directly sucked into the flow channel of the machine box along the curved surface of the deflector plate, the cyclone vortex on both sides of the smoke collecting cavity is weakened, and the noise is low; the sound absorbing portion is made of a material with sound absorbing and noise reducing capability, part of the noise can be absorbed, and the use experience is good. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 is a schematic diagram of the airflow trend of the existing range hood;
[0021] Figure 2 is a structural schematic diagram of the range hood provided by the specific embodiment of the utility model;
[0022] Figure 3It is the combination structure schematic diagram of the flow guide assembly and the smoke collecting cavity provided by the embodiment of the utility model.
[0023] Figure 4 It is the assembly drawing of the flow guide assembly and the smoke collecting cavity provided by the embodiment of the utility model.
[0024] Figure 5 It is the airflow trend schematic diagram provided by the embodiment of the utility model.
[0025] In the drawing,
[0026] 1, sound absorption part;2, flow guide plate;3, smoke baffle;4, case;5, smoke collecting cavity;11, noise reduction blind hole;51, air inlet;100, smoke collecting cavity;200, smoke baffle;300, flow channel. Embodiment
[0027] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiment of the utility model will be described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0028] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.
[0029] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0030] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can through the indirect connection of intermediate medium, can be the communication of two element interiors or the interaction of two elements, unless another definite limitation.For the ordinary skill in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0031] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium.Moreover, the first feature "over", "above" and "on" the second feature can be directly above or obliquely above the first feature, or simply indicate that the first feature is higher than the second feature in horizontal height.The first feature "under", "below" and "on" the second feature can be directly below or obliquely below the first feature, or simply indicate that the first feature is lower than the second feature in horizontal height.
[0032] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element.When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element.The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.
[0033] The embodiment discloses a range hood and a range hood comprising the range hood. Figure 2 As shown in the figure, the range hood comprises a cabinet 4 and a smoke collecting cavity 5, the smoke collecting cavity 5 is arranged below the cabinet 4, and a fan for generating airflow negative pressure is installed in the cabinet 4.Four air inlets 51 are formed in the bottom of the smoke collecting cavity 5, and the four air inlets 51 form a rectangle.The flow guide assembly is located in the smoke collecting cavity 5 and within the range surrounded by the four air inlets 51.It can be understood that other structures of the range hood are the same as those of the prior art, and will not be described here.
[0034] As shown in the figure, Figures 2 to 5As shown, the range hood guide assembly includes a sound absorption part 1, a guide plate 2 and a smoke baffle 3. The guide plate 2 is buckled above the sound absorption part 1, and the smoke baffle 3 is located below the sound absorption part 1. The guide plate 2 is curved, and the middle part of the guide plate 2 protrudes away from the sound absorption part 1, that is, the middle part of the guide plate 2 protrudes towards the cabinet 4. By using the wall attachment effect, the oil fume flow is directly sucked into the flow channel of the cabinet 4 along the curved surface of the guide plate 2, the path of collecting oil fume is shortened, the cyclone vortex on both sides of the smoke collecting cavity 5 is weakened, the problem of waste space of the smoke collecting cavity 5 affecting the smoke absorption effect is solved, and the noise is low.
[0035] The sound absorption part 1 is made of a material with sound absorption and noise reduction capability, can absorb part of the noise, further reduce the noise, and has a good use experience. The specific material for preparing the sound absorption part 1 is not limited, and the materials with sound absorption and noise reduction function in the prior art can be used, which can be but not limited to sound insulation cotton. In order to reduce the weight as much as possible, the sound absorption part 1 is made of a material with sound absorption and noise reduction capability and light weight, so that the smoke baffle 3 is prevented from falling off from the smoke collecting cavity 5 due to the heavy pressure of the sound absorption part 1, and the use is safer.
[0036] The specific structure of the smoke baffle 3 is not limited, and the oil fume flow can be concentrated at the air inlet 51. In one structure, the smoke baffle 3 and the smoke collecting cavity 5 are independent structures. Specifically, a through hole is formed in the bottom of the smoke collecting cavity 5, and a sheet-shaped smoke baffle 3 with a rectangular shape is located in the through hole and is fixedly connected to the smoke collecting cavity 5 by a support or a connecting rod, so that the overall strength is high and the connection is stable.
[0037] In another structure, the smoke baffle 3 and the smoke collecting cavity 5 are integrated structures. Specifically, a plurality of air inlets 51 are formed on the bottom surface of the smoke collecting cavity 5, all the air inlets 51 are arranged in sequence to form a circle, and the part surrounded in the middle forms the smoke baffle 3, which is convenient to process and saves materials.
[0038] On the basis of the above structure, a noise reduction blind hole 11 is formed on the sound absorption part 1, and the opening end of the noise reduction blind hole 11 faces the guide plate 2. The noise reduction blind hole 11 and the guide plate 2 form a resonance cavity, which has the functions of sound absorption and noise reduction, and the noise reduction effect is obvious and the use experience is good.
[0039] The specific shape of the noise reduction blind hole 11 is not limited, and the noise reduction blind hole 11 can form a resonance cavity with the guide plate 2. In this embodiment, the cross section of the noise reduction blind hole 11 in the horizontal direction is square or rectangular, which is convenient to process and has high processing efficiency.
[0040] The area of the noise reduction blind hole 11 and the specific number of the noise reduction blind holes 11 on the sound absorption part 1 are not limited, and can be determined according to the actual use requirement. In this embodiment, a plurality of square noise reduction blind holes 11 are arranged in a horizontal and vertical matrix on the sound absorption part 1, so that the sound absorption and noise reduction capabilities at each position on the sound absorption part 1 are more uniform, the noise at each position can be effectively reduced, and the noise reduction effect is good.
[0041] The specific shape of the sound absorption part 1 is not limited, in order to improve the noise reduction capacity and reduce the installation difficulty, the side of the sound absorption part 1 facing the smoke baffle 3 is a plane, the top surface of the smoke baffle 3 is basically a plane, and the bottom surface of the sound absorption part 1 can be attached to the top surface of the smoke baffle 3 after installation; the side of the sound absorption part 1 facing the flow guide plate 2 is a curved surface, the middle part of the curved surface protrudes towards the flow guide plate 2, the noise reduction blind hole 11 is more likely to form a resonance cavity with the flow guide plate 2, and the noise reduction effect is good.
[0042] In order to ensure that the bottom of the noise reduction blind hole 11 does not penetrate the sound absorption part 1 while ensuring that there is a large enough resonance cavity, in the present embodiment, the distance between the bottom surface of all noise reduction blind holes 11 and the smoke baffle 3 is within a set range. The specific value of the set range is not limited, and it is only required to be greater than the machining error of the noise reduction blind hole 11. That is, the bottom ends of all noise reduction blind holes 11 are basically in the same horizontal plane, and even if the bottom ends of the noise reduction blind holes 11 are lowered due to machining errors, they will not penetrate the bottom surface of the sound absorption part 1, reducing the processing difficulty and improving the sound reduction and noise reduction capacity.
[0043] In order to ensure that the noise reduction blind hole 11 can form a resonance cavity with the flow guide plate 2, the curved surface of the sound absorption part 1 is attached to the inner surface of the flow guide plate 2. That is, the middle protruding arc of the sound absorption part 1 is consistent with the flow guide plate 2, and the top opening end of the noise reduction blind hole 11 is attached to the inner surface of the flow guide plate 2 after assembly, a plurality of independent resonance cavities are formed between the flow guide plate 2 and the sound absorption part 1, and the noise reduction effect is good.
[0044] On the basis of the above structure, the four peripheral edges of the sound absorption part 1 are flush with the four peripheral edges of the smoke baffle 3, and the four peripheral edges of the flow guide plate 2 are also flush with the four peripheral edges of the smoke baffle 3. After installation, the smoke baffle 3 and the flow guide plate 2 are located on opposite sides of the sound absorption part 1, the four peripheral edges of the flow guide plate 2 and the four peripheral edges of the smoke baffle 3 are fixedly connected together, the sound absorption part 1 is tightly filled in the shell structure formed by the flow guide plate 2 and the smoke baffle 3, and the four peripheral edges of the sound absorption part 1 fill the edges of the shell structure, effectively reducing noise.
[0045] In order for the oil fume flow entering the smoke collecting cavity 5 from the four air inlets 51 to directly rise and be sucked into the flow channel in the cabinet 4, in the present embodiment, the flow guide plate 2 has a central symmetry structure. From any air inlet 51 to the center of the flow guide plate 2, the rising height of the oil fume flow is basically the same, and the oil fume flows in each direction will not collide with each other, avoiding the formation of turbulent flow, and the exhaust fume effect is good.
[0046] Note that the above is only the preferred embodiment of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims
1. A flow guiding component for a range hood, characterized in that, include: The sound-absorbing part (1) is made of a material with sound-absorbing and noise-reducing capabilities; A guide plate (2) is fastened above the sound-absorbing part (1); the guide plate (2) is curved, and the middle part of the guide plate (2) protrudes away from the sound-absorbing part (1); and, The smoke baffle (3) and the air guide plate (2) are located on opposite sides of the sound-absorbing part (1).
2. The flow guiding component for a range hood according to claim 1, characterized in that, The sound-absorbing part (1) is provided with a noise-reducing blind hole (11), the opening end of the noise-reducing blind hole (11) faces the guide plate (2), and a resonant cavity is formed between the noise-reducing blind hole (11) and the guide plate (2).
3. The flow guiding component for a range hood according to claim 2, characterized in that, The distance between the bottom surface of all the noise reduction blind holes (11) and the smoke baffle (3) is within the set range.
4. The flow guiding component for a range hood according to claim 1, characterized in that, The sound-absorbing part (1) is flat on the side facing the smoke baffle (3), and curved on the side facing the guide plate (2), with the middle part of the curved surface protruding towards the guide plate (2).
5. The flow guiding component for a range hood according to claim 4, characterized in that, The curved surface of the sound-absorbing part (1) is in contact with the inner surface of the guide plate (2).
6. The flow guiding assembly for a range hood according to any one of claims 1 to 5, characterized in that, The four sides of the sound-absorbing part (1) are flush with the four sides of the smoke baffle (3).
7. The flow guiding assembly for a range hood according to any one of claims 1 to 5, characterized in that, The bottom surface of the sound-absorbing part (1) is attached to the upper surface of the smoke baffle (3).
8. The flow guiding assembly for a range hood according to any one of claims 1 to 5, characterized in that, The four sides of the guide plate (2) are flush with the four sides of the smoke baffle (3).
9. The flow guiding assembly for a range hood according to any one of claims 1 to 5, characterized in that, The guide plate (2) has a centrally symmetrical structure.
10. A range hood, comprising a housing (4) and a smoke collection chamber (5), wherein the smoke collection chamber (5) is disposed below the housing (4), characterized in that, The range hood further includes a flow guide assembly for a range hood as described in any one of claims 1 to 9, the flow guide assembly being located in the smoke collection chamber (5), and the middle part of the flow guide plate (2) protruding toward the casing (4).