Oil collecting device for range hood

Abstract

The present invention discloses an oil collection device for a range hood. The range hood comprises an air cabinet suitable for mounting a fan, an oil outlet being defined at the bottom of the air cabinet, and an oil collection box disposed below the oil outlet for collecting grease discharged from the oil outlet; and a flow diversion assembly disposed within the oil collection box and corresponding to the oil outlet for adjusting the velocity and / or direction of a high-speed airflow ejected from the oil outlet, thereby reducing the aerodynamic noise generated by the high-speed airflow. The device has a simple structure and, while ensuring normal oil collection, can also effectively reduce the aerodynamic noise generated by the high-speed airflow ejected from the oil outlet.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to an oil collecting device for a range hood. Background Art

[0002] With the prevalence of high-rise residential buildings, resistance in lower-floor ducts is increasing. Consumers are demanding higher levels of oil fume removal from range hoods. Manufacturers are widely using DC motors instead of traditional AC motors, significantly increasing fan speeds to overcome resistance in the flue oil net. However, the resulting noise problem is becoming increasingly prominent. Therefore, consumers demand products that meet their needs for high air volume and high static pressure, and are more likely to accept quieter operating noise.

[0003] In existing technology, most range hoods use a centrifugal fan to create negative pressure, exhausting indoor fumes into a common flue. Oil from the centrifugal fan and its surface drips down into an oil collection box below the fan. The box has an oil droplet, which directs the drained oil into an oil cup for storage and requires regular cleaning by the user. Oil from the centrifugal fan drips through the oil outlet into the oil collection box. However, when the fan is running, the internal pressure is high, and air is ejected through the oil outlet, generating abnormal aerodynamic noise. Conventional oil collection boxes only consider the oil circuit design, but fail to consider how to reduce aerodynamic noise. Summary of the Invention

[0004] The present invention aims to solve, at least to a certain extent, one of the problems existing in the existing related technologies. To this end, the present invention proposes an oil collection device for a range hood, which has a simple structure and can effectively reduce the aerodynamic noise generated by the high-speed airflow ejected from the oil outlet while meeting the normal oil collection requirements.

[0005] The above purpose is achieved through the following technical solutions:

[0006] An oil receiving device for a range hood, the range hood having an air cabinet suitable for installing a fan, an oil outlet being provided at the bottom of the air cabinet, comprising:

[0007] An oil receiving box, which is arranged below the oil outlet and is suitable for collecting grease discharged from the oil outlet;

[0008] A diverter assembly is provided in the oil receiving box, and the diverter assembly is provided corresponding to the oil outlet so as to be suitable for adjusting the flow rate and / or flow direction of the high-speed airflow ejected from the oil outlet, thereby reducing the aerodynamic noise generated by the high-speed airflow.

[0009] In some embodiments, the diverter assembly includes a diverter shell and a diverter cover, wherein the diverter shell is detachably disposed in the oil receiving box, the diverter cover is disposed in the diverter shell and the top wall of the diverter cover is disposed corresponding to the oil outlet, thereby forming a first diverter surface on the top wall of the diverter cover and a second diverter surface on the inner side wall of the diverter shell, and the flow direction of the first diverter surface is opposite to the flow direction of the second diverter surface, and the first diverter surface and the second diverter surface cooperate to adjust the flow rate and / or flow direction of the high-speed airflow ejected from the oil outlet.

[0010] In some embodiments, the first diverter surface is inclined from top to bottom, and the second diverter surface is inclined from bottom to top.

[0011] In some embodiments, the first diverter surface is a conical surface structure, and the vertex of the first diverter surface is coaxially arranged with the center of the oil outlet.

[0012] In some embodiments, the first diverter surface and the second diverter surface are discontinuous structures.

[0013] In some embodiments, an oil leakage port is provided at the bottom of the diverter housing so that the grease in the diverter housing flows to the oil receiving box through the oil leakage port.

[0014] In some embodiments, a disassembly assembly is further included, through which the diversion assembly can be detachably disposed in the oil receiving box.

[0015] In some embodiments, the disassembly and assembly component includes a plurality of flanges and mounting ports, wherein the plurality of flanges are spaced apart at the bottom position of the diversion component, the mounting port is opened on the oil collecting box, and a bayonet is provided at one end of the mounting port extending outward. After the flange is embedded in the mounting port, the diversion component is driven to rotate by external force so that the flange is clamped on the bayonet.

[0016] In some embodiments, an oil cup is further included, and the oil cup is disposed at a lower rear position of the range hood.

[0017] In some embodiments, the bottom wall of the oil receiving box is inclined downward from front to back.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] 1. The oil receiving device of the range hood of the present invention has a simple structure. While meeting the requirements of normal oil receiving, it can also effectively reduce the aerodynamic noise generated by the high-speed airflow ejected from the oil outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 Is a schematic structural diagram of the range hood embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A;

[0023] Figure 3 2 is a schematic structural diagram of an oil receiving device according to an embodiment of the present invention;

[0024] Figure 4 is a cross-sectional view of an oil receiving device according to an embodiment of the present invention;

[0025] Figure 5 It is a bottom view of the oil receiving device in the embodiment of the present invention. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. The components of the embodiments of the present invention can be arranged and designed in various configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but merely represents selected embodiments of the invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of the technical solutions claimed by the present invention.

[0028] Example 1:

[0029] like Figures 1 to 5 As shown, this embodiment provides an oil receiving device for a range hood. The range hood has an air cabinet 1 suitable for installing a fan 11. An oil outlet 12 is provided at the bottom of the air cabinet 1, including:

[0030] The oil receiving box 2 is arranged below the oil outlet 12 to collect the grease discharged from the oil outlet 12;

[0031] The diverter assembly 3 is arranged in the oil receiving box 2, and the diverter assembly 3 is arranged corresponding to the oil outlet 12 to be suitable for adjusting the flow rate and / or flow direction of the high-speed airflow ejected from the oil outlet 12, thereby reducing the aerodynamic noise generated by the high-speed airflow.

[0032] In this embodiment, an oil receiving box 2 is provided below the oil outlet 12, and a diverter assembly 3 is provided in the oil receiving box 2. The diverter assembly 3 is provided corresponding to the oil outlet 12 to be suitable for adjusting the flow rate and / or flow direction of the high-speed airflow ejected from the oil outlet 12, thereby reducing the aerodynamic noise generated by the high-speed airflow. The structure is simple and can effectively reduce the aerodynamic noise generated by the high-speed airflow ejected from the oil outlet 12 while meeting the normal oil connection requirements.

[0033] In this embodiment, the range hood has a range hood body, an air cabinet 1 is arranged in the range hood body, and a fan 11 is arranged in the air cabinet 1. The fan 11 consists of a motor and an impeller. An oil outlet 12 is opened at the middle position of the bottom wall of the air cabinet 1 to discharge the grease in the air cabinet 1 and on the fan 11 to the oil collecting box 2 through the oil outlet 12. At the same time, the grease on the outer surface of the air cabinet 1 flows into the oil collecting box 2 through the front plate, the enclosure and the rear plate of the air cabinet 1 under the action of gravity. In addition, during the exhaust operation of the range hood, the high-speed airflow in the air cabinet 1 will be sprayed onto the oil collecting box 2 through the oil outlet 12. Since the diverter component 3 is arranged corresponding to the oil outlet 12 to be suitable for adjusting the flow rate and / or flow direction of the high-speed airflow sprayed from the oil outlet 12, the aerodynamic noise generated by the high-speed airflow is reduced, thereby effectively reducing the aerodynamic noise generated by the high-speed airflow sprayed from the oil outlet 12.

[0034] Furthermore, the diverter assembly 3 includes a diverter shell 31 and a diverter cover 32, wherein the diverter shell 31 is detachably arranged in the oil receiving box 2, the diverter cover 32 is arranged in the diverter shell 31 and the top wall of the diverter cover 32 is arranged corresponding to the oil outlet 12, thereby forming a first diverter surface 33 on the top wall of the diverter cover 32 and a second diverter surface 34 on the inner side wall of the diverter shell 31, and the flow direction of the first diverter surface 33 is opposite to the flow direction of the second diverter surface 34, and the first diverter surface 33 and the second diverter surface 34 cooperate to adjust the flow rate and / or flow direction of the high-speed airflow ejected from the oil outlet 12.

[0035] Preferably, the first diverter surface 33 is inclined from top to bottom, and the second diverter surface 34 is inclined from bottom to top.

[0036] Specifically, the first diverter surface 33 is a conical surface structure, and the vertex of the first diverter surface 33 is coaxially arranged with the center of the oil outlet 12 .

[0037] Preferably, the first diverter surface 33 and the second diverter surface 34 are discontinuous structures.

[0038] Furthermore, an oil leakage port 35 is provided at the bottom of the diverter housing 31 so that the grease in the diverter housing 31 can flow to the oil receiving box 2 through the oil leakage port 35 .

[0039] In this embodiment, a diverter shell 31 is provided in the oil receiving box 2 and the diverter shell 31 is located directly below the oil outlet 12. Of course, the diverter shell 31 can be fixedly installed in the oil receiving box 2 or detachably provided in the oil receiving box 2. A cavity with an open upper end is defined in the diverter shell 31, thereby forming a second diverter surface 34 on the inner side wall of the diverter shell 31, and a diverter cover 32 is provided in the cavity, thereby forming a first diverter surface 33 on the top wall of the diverter cover 32. In order to effectively adjust the flow velocity and / or flow direction of the high-speed airflow ejected from the oil outlet 12, the flow direction of the first diverter surface 33 can be opposite to the flow direction of the second diverter surface 34. More preferably, the first diverter surface 33 is inclined from top to bottom, and the second diverter surface 34 is inclined from bottom to top, so that the flow direction of the first diverter surface 33 is inclined downward flow, then the flow direction of the second diverter surface 34 is inclined upward flow, so that the high-speed airflow ejected from the oil outlet 12 flows from top to bottom along the first diverter surface 33 to guide the high-speed airflow to the second diverter surface 34, and the reverse guidance of the second diverter surface 34 allows the high-speed airflow to continue to flow from bottom to top along the second diverter surface 34, thereby adjusting the flow rate and / or flow direction of the high-speed airflow ejected from the oil outlet 12.

[0040] In this embodiment, the high-speed airflow ejected from the oil outlet 12 rushes towards the first diverter surface 33 at high speed after passing through the oil outlet 12. Since the first diverter surface 33 is a conical surface structure, and the vertex of the first diverter surface 33 is coaxial with the center of the oil outlet 12, that is, the vertex of the first diverter surface 33 coincides with the center of the oil outlet 12, the high-speed airflow hits the first diverter surface 33 and flows evenly around it. That is, the high-speed airflow is caused to flow outward at 360 degrees by the action of the first diverter surface 33, thereby reducing the flow rate of the high-speed airflow and changing the flow direction of the high-speed airflow to an inclined downward flow; then, after the diverted airflow passes through the second diverter surface 34 for guidance, the flow direction of the high-speed airflow is changed to an inclined upward flow. In addition, since the first diverter surface 33 and the second diverter surface 34 are discontinuous structures, that is, the first diverter surface 33 and the second diverter surface 34 are discontinuous, when the grease mixed with the high-speed airflow slides down from the first diverter surface 33 to the second diverter surface 34, the grease on the second diverter surface 34 is then diverted into the oil receiving box 2 through the oil leakage port 35.

[0041] In this embodiment, in order to facilitate the discharge of grease in the diverter housing 31 to the oil receiving box 2, the bottom wall of the diverter housing 31 is spaced apart from the bottom wall of the oil receiving box 2. At the same time, an oil leakage port 35 is opened on the bottom wall of the diverter housing 31 to allow the grease in the diverter housing 31 to flow to the oil receiving box 2 through the oil leakage port 35.

[0042] Furthermore, it also includes a disassembly assembly component, by which the diversion assembly 3 can be detachably arranged in the oil receiving box 2.

[0043] Preferably, the disassembly and assembly component includes multiple flanges 41 and installation ports, wherein the multiple flanges 41 are spaced apart at the bottom position of the diversion component 3, the installation port is opened on the oil receiving box 2, and a bayonet 42 is provided extending outward from one end of the installation port. After the flange 41 is embedded in the installation port, the diversion component 3 is driven to rotate by external force so that the flange 41 is clamped on the bayonet 42.

[0044] In this embodiment, in order to facilitate the user to clean the oil receiving box 2, a disassembly assembly can be added, so that the diverter assembly 3 can be detachably arranged in the oil receiving box 2 by disassembling the assembly. A flange 41 is protruded outward on the bottom wall of the diverter assembly 3. Since the bottom wall of the diverter shell 31 is a circular structure, a plurality of flanges 41 are arranged at intervals along the circumference direction of the diverter shell 31. A plurality of mounting openings are correspondingly opened on the oil receiving box 2, and a bayonet 4 with a narrow slit structure is extended outward at one end of each mounting opening. 2. The bayonet 42 is matched with the flange 41 to limit the flange 41. During use, after the flange 41 is inserted into the installation opening, the diverter shell 31 is driven to rotate by external force so that the flange 41 is clamped on the bayonet 42, so that the diverter assembly 3 and the oil receiving box 2 are assembled together to achieve the above-mentioned noise reduction and oil collection functions. After using for a period of time, the user can remove the oil receiving box 2, and then drive the diverter shell 31 to rotate to detach the diverter shell 31 from the oil receiving box 2 for cleaning.

[0045] Specifically, it also includes an oil cup, which is arranged at the lower rear position of the range hood.

[0046] In particular, the bottom wall of the oil receiving box 2 is arranged to be inclined downward from the front to the rear.

[0047] In this embodiment, a through hole is opened at the rear lower position of the range hood body, and an oil cup is provided at the through hole position to collect the grease in the range hood body. More preferably, since the bottom wall of the oil collecting box 2 is inclined downward from front to back, and an oil drain port is opened at the rear position of the oil cup, the grease in the oil collecting box 2 flows to the rear lower end position of the range hood body through the oil drain port, and then the grease in the range hood body flows to the oil cup through the through hole.

[0048] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. An oil receiving device for a range hood, the range hood comprising a wind cabinet (1) suitable for installing a fan (11), an oil outlet (12) being provided at the bottom of the wind cabinet (1), and characterized in that: include: An oil receiving box (2), the oil receiving box (2) being arranged below the oil outlet (12) and being suitable for collecting grease discharged from the oil outlet (12); A flow diversion component (3), the flow diversion component (3) being arranged in the oil receiving box (2), and the flow diversion component (3) being arranged corresponding to the oil outlet (12) so as to be suitable for adjusting the flow velocity and / or flow direction of the high-speed airflow ejected from the oil outlet (12), thereby reducing the aerodynamic noise generated by the high-speed airflow; The diverter assembly (3) comprises a diverter shell (31) and a diverter cover (32), wherein the diverter shell (31) is detachably arranged in the oil receiving box (2), the diverter cover (32) is arranged in the diverter shell (31), and the top wall of the diverter cover (32) is arranged corresponding to the oil outlet (12), so that a first diverter surface (33) is formed on the top wall of the diverter cover (32) and a second diverter surface (34) is formed on the inner side wall of the diverter shell (31), and the flow direction of the first diverter surface (33) is opposite to the flow direction of the second diverter surface (34), and the first diverter surface (33) and the second diverter surface (34) cooperate to adjust the flow rate and / or flow direction of the high-speed airflow ejected from the oil outlet (12); The first diversion surface (33) is arranged to be inclined from top to bottom, and the second diversion surface (34) is arranged to be inclined from bottom to top; The first diverter surface (33) and the second diverter surface (34) are discontinuous structures.

2. The oil receiving device of a range hood according to claim 1, characterized in that: The first diverter surface (33) is a conical surface structure, and the vertex of the first diverter surface (33) and the center of the oil outlet (12) are coaxially arranged.

3. The oil receiving device of a range hood according to claim 1, characterized in that: An oil leakage port (35) is provided at the bottom of the diverter housing (31) to allow the grease in the diverter housing (31) to flow through the oil leakage port (35) to the oil receiving box (2).

4. The oil receiving device for a range hood according to claim 1, characterized in that: It also includes a disassembly assembly, through which the diversion assembly (3) can be detachably arranged in the oil receiving box (2).

5. The oil receiving device for a range hood according to claim 4, characterized in that: The disassembly and assembly component comprises a plurality of flanges (41) and an installation opening, wherein the plurality of flanges (41) are spaced apart and arranged at the bottom of the diverter component (3); the installation opening is opened on the oil receiving box (2), and a bayonet (42) is provided at one end of the installation opening extending outward; after the flanges (41) are embedded in the installation opening, the diverter component (3) is driven to rotate by an external force so that the flanges (41) are clamped on the bayonet (42).

6. The oil receiving device for a range hood according to any one of claims 1 to 5, characterized in that: It also includes an oil cup, which is arranged at the lower rear position of the range hood.

7. The oil receiving device for a range hood according to claim 6, characterized in that: The bottom wall of the oil receiving box (2) is arranged to be inclined downward from the front to the back.

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