An oil fume separator
By using independently designed smoke inlets, smoke outlets, and air guide channels, combined with upper and lower guide walls and smoke-blocking structures, the problems of turbulent airflow and increased noise in the oil fume separation network are solved, achieving efficient oil fume separation and noise reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG MACRO GAS APPLIANCE
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-09
AI Technical Summary
The existing oil fume separation network structure causes airflow turbulence, which affects the oil fume separation effect and increases noise. Furthermore, oil fumes of different flow rates interfere with each other.
It adopts independently set smoke inlet, smoke outlet and air guide channel, and through the design of upper and lower guide walls and smoke blocking structure, it ensures independent flow of oil fumes, increases the contact area and reduces turbulence, and reduces noise.
It enables independent flow of oil fumes, reduces turbulence, lowers noise, improves the separation of grease and gas, and facilitates disassembly and cleaning.
Smart Images
Figure CN224331758U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of range hood technology, specifically to an oil fume separator. Background Technology
[0002] The oil fume separator is an important component of a range hood, which plays a role in filtering oil fumes. Currently, the internal structure of the oil fume separator can reduce the number of vortices generated by the airflow, thus affecting the oil fume separation effect.
[0003] Chinese patent application number 202220130410.8, published on May 31, 2022, discloses an oil fume separation mesh and a range hood. The oil fume separation mesh, from top to bottom, includes a first filter mesh with multiple spaced first separation bars; a second filter mesh with multiple spaced second separation bars; a third filter mesh with multiple spaced third separation bars; and a fourth filter mesh with multiple spaced fourth separation bars. The lower ends of the first and third separation bars are each provided with a dividing bar, and the upper ends of the second and fourth separation bars are each provided with a dividing bar.
[0004] The oil fume separation mesh guides the flow of air carrying oil fumes through the separator bars, so that the oil fumes come into contact with the oil fume separation mesh to achieve the effect of oil fume separation; however, after the airflow is separated by the separator bars of the second separator bar, it will converge in the middle filter, which will cause turbulence inside the oil fume separation mesh and thus increase noise. Utility Model Content
[0005] In view of this, the purpose of this utility model is to provide an oil fume separator with independently set inlet, outlet and guide air duct. The oil fume flows independently from the time it enters the inlet until the gas separated from the grease is discharged from the outlet; reducing turbulence and noise; and ensuring that oil fumes of different flow rates do not interfere with each other when they enter different separation air ducts.
[0006] To solve the above-mentioned technical problems, the technical solution used in this utility model is as follows:
[0007] The present invention discloses an oil fume separator comprising an upper oil screen, a lower oil screen, and a middle oil screen. The middle oil screen is disposed between the upper and lower oil screens and has a guide cavity and a smoke-blocking structure. A partition structure is provided in the guide cavity, dividing the guide cavity into two independent guide air channels. The upper oil screen has a smoke inlet cavity, and the lower oil screen has a smoke outlet cavity. The smoke-blocking structure extends into the smoke inlet cavity and the smoke outlet cavity respectively, dividing the smoke inlet cavity into two independent smoke inlets and the smoke outlet cavity into two independent smoke outlets. A separation air channel is formed between the smoke inlets, the guide air channels, and the smoke outlets.
[0008] Preferably, the upper oil screen has an outwardly protruding upper guide wall, which connects the smoke inlet and the guide air passage; the lower oil screen has an outwardly protruding lower guide wall, which connects the smoke outlet and the guide air passage.
[0009] Preferably, the separation structure includes a first separator and a second separator, the first separator being connected to the upper guide wall and extending into the guide cavity, the second separator being connected to the lower guide wall and extending into the guide cavity, and the ends of the first separator and the second separator abutting each other.
[0010] Preferably, the smoke-blocking structure includes a first smoke-blocking plate and a second smoke-blocking plate, wherein the first smoke-blocking plate extends from the top of the middle oil mesh toward the smoke inlet chamber, and the second smoke-blocking plate extends from the bottom of the middle oil mesh toward the smoke outlet chamber.
[0011] Preferably, a blocking element is provided between the smoke inlet and the separating air passage, and between the smoke outlet and the separating air passage.
[0012] Preferably, the blocking element extends towards the oil mesh.
[0013] Preferably, the upper oil mesh and the lower oil mesh are detachably connected, and the middle oil mesh is housed between the upper oil mesh and the lower oil mesh.
[0014] Preferably, one end of the upper oil mesh is hinged to one end of the lower oil mesh, and the other end of the upper oil mesh is magnetically connected to the other end of the lower oil mesh.
[0015] Compared with the prior art, the beneficial effects of the oil fume separator described in this utility model are mainly reflected in the following: through the independently set smoke inlet, smoke outlet and air guide channel, the oil fume flows independently from the time it enters the smoke inlet until the gas separated from the grease is discharged from the smoke outlet; reducing turbulence and noise; at the same time, oil fumes of different flow rates will not interfere with each other when they enter different separation channels.
[0016] By setting outward-protruding upper and lower guide walls, the fumes can flow along the surfaces of the upper and lower guide walls, increasing the contact area between the fumes and the upper and lower oil filters, and improving the separation of grease and gas.
[0017] The partition structure connects the upper and lower guide walls. The partition structure is long and has a good partitioning effect on the guide cavity. When the oil fumes flow along the lower guide wall, the guide air passage and the upper guide wall, they will not interfere with the oil fumes in the other separation air passage.
[0018] By setting up a blocking component to block oil fumes, the contact area between the oil fume separator and the oil fumes is increased; at the same time, the blocking component extends towards the middle oil mesh, narrowing the width between the blocking component and the middle oil mesh. This increases the flow rate of oil fumes through the blocking component and improves the separation degree of grease and gas.
[0019] The upper and lower oil screens are hinged and magnetically connected, making them easy to disassemble and clean.
[0020] This invention features independently designed smoke inlets, smoke outlets, and air guide channels, ensuring independent flow of oil fumes from the moment they enter the smoke inlet until the gas separated from the grease exits from the smoke outlet. This reduces turbulence and noise. Furthermore, oil fumes of different flow rates will not interfere with each other when they enter different separation channels. Attached Figure Description
[0021] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.
[0022] Figure 1 This is a top view of the present invention.
[0023] Figure 2 for Figure 1 Sectional view of AA.
[0024] Figure 3 for Figure 2 A magnified view of B in the middle.
[0025] Figure 4 This is a schematic diagram of the flow path of the oil fume in this utility model.
[0026] Figure 5 This is an exploded view of the present invention.
[0027] Explanation of reference numerals in the attached diagram: Upper oil mesh 1, smoke inlet chamber 11, smoke inlet 110, upper guide wall 12, first guide slope 121, second guide slope 122; Middle oil mesh 2, guide chamber 21, guide air passage 211, smoke baffle structure 22, first smoke baffle 221, second smoke baffle 222; Lower oil mesh 3, smoke outlet chamber 31, smoke outlet 310, lower guide wall 32, third guide slope 321, fourth guide slope 322; Separation structure 4, first separator 41, second separator 42; Blocking component 5. Detailed Implementation
[0028] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand this utility model and implement it. However, the embodiments are not intended to limit this utility model. In this embodiment, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model.
[0029] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to and integrated with the other element, or there may be an intervening element present. The terms "mounted," "one end," "the other end," and similar expressions used in this invention are for illustrative purposes only.
[0030] like Figure 1-5 As shown, an oil fume separator includes an upper oil screen 1, a lower oil screen 3, and a middle oil screen 2. The middle oil screen 2 is disposed between the upper oil screen 1 and the lower oil screen 3. The middle oil screen 2 has a guide cavity 21 and a smoke-blocking structure 22. A partition structure 4 is provided in the guide cavity 21, which divides the guide cavity 21 into two independent guide air channels 211. The upper oil screen 1 has a smoke inlet cavity 11, and the lower oil screen 3 has a smoke outlet cavity 31. The smoke-blocking structure 22 extends to the smoke inlet cavity 11 and the smoke outlet cavity 31, respectively. The smoke-blocking structure 22 divides the smoke inlet cavity 11 into two independent smoke inlets 110 and the smoke outlet cavity 31 into two independent smoke outlets 310. A separation air channel is formed between the smoke inlets 110, the guide air channels 211, and the smoke outlets 310. With independently designed smoke inlet 110, smoke outlet 310, and guide air duct 211, the oil fumes flow independently from the moment they enter the smoke inlet 110 until the gas separated from the grease is discharged from the smoke outlet 311; this reduces turbulence and noise; and at the same time, oil fumes of different flow rates will not interfere with each other when they enter different separation air ducts.
[0031] The upper oil filter 1 has an outwardly protruding upper guide wall 12, which connects the smoke inlet 110 and the airflow channel 211; the lower oil filter 3 has an outwardly protruding lower guide wall 32, which connects the smoke outlet 310 and the airflow channel 211. By setting the outwardly protruding upper guide wall 12 and lower guide wall 32, the oil fumes can flow along the surfaces of the upper guide wall 12 and lower guide wall 32, increasing the contact area between the oil and the upper and lower oil filters 1 and 3, and improving the separation degree of oil and gas.
[0032] The separation structure 4 includes a first separator 41 and a second separator 42. The first separator 41 is connected to the upper guide wall 12 and extends into the guide cavity 21. The second separator 42 is connected to the lower guide wall 32 and extends into the guide cavity 21. The ends of the first separator 41 and the second separator 42 abut against each other. The separation structure 4 connects the upper guide wall 12 and the lower guide wall 32. The separation structure 4 has a large length, which provides a good separation effect on the guide cavity 21. When the fumes flow along the lower guide wall 32, the guide air passage 211, and the upper guide wall 12, they will not interfere with the fumes from the other separation air passage.
[0033] Reference Figure 3 As shown, the upper guide wall 12 includes two first guide slopes 121 and two second guide slopes 122; the two first guide slopes 121 and the two second guide slopes 122 are symmetrically arranged about the partition structure 4; one end of the first guide slope 121 is connected to the first partition 41, and the other end of the first guide slope 121 extends upward away from the first partition 41; one end of the second guide slope 122 is connected to the other end of the first guide slope 121, and the other end of the second guide slope 122 extends downward away from the first partition 41; the first guide slope 121 and the second guide slope 122 extend in different directions, so that the distance between the first guide slope 121 and the second guide slope 122 is long, increasing the contact area between the oil fume and the first guide slope 121 and the second guide slope 122.
[0034] The lower guide wall 32 includes two third guide slopes 321 and two fourth guide slopes 322. The two third guide slopes 321 and the two fourth guide slopes 322 are symmetrically arranged about the partition structure 4. One end of the third guide slope 321 is connected to the second partition 42, and the other end of the third guide slope 321 extends upward away from the second partition 42. One end of the fourth guide slope 322 is connected to the other end of the third guide slope 321, and the other end of the fourth guide slope 322 extends downward away from the second partition 42. The third guide slope 321 and the fourth guide slope 322 extend in different directions, so that the distance between the third guide slope 321 and the fourth guide slope 322 is long, increasing the contact area between the oil fume and the third guide slope 321 and the fourth guide slope 322.
[0035] The smoke-blocking structure 22 includes a first smoke-blocking plate 221 and a second smoke-blocking plate 222. The first smoke-blocking plate 221 extends from the top of the middle oil mesh 2 toward the smoke inlet chamber 11, and the second smoke-blocking plate 222 extends from the bottom of the middle oil mesh 2 toward the smoke outlet chamber 31.
[0036] A baffle 5 is provided between the smoke inlet 110 and the separating air duct, and between the smoke outlet 310 and the separating air duct. The baffle 5 is used to block oil fumes, increasing the contact area between the oil fume separator and the oil fumes. The baffle 5 extends towards the central oil mesh 2. Simultaneously, the extension of the baffle 5 towards the central oil mesh 2 narrows the width between the baffle 5 and the central oil mesh 2, thereby increasing the flow velocity of oil fumes through the baffle 5 and improving the separation degree of grease and gas.
[0037] The upper oil mesh 1 and the lower oil mesh 3 are detachably connected, and the middle oil mesh 2 is housed between the upper oil mesh 1 and the lower oil mesh 3. Preferably, one end of the upper oil mesh 1 is hinged to one end of the lower oil mesh 3, and the other end of the upper oil mesh 1 is magnetically connected to the other end of the lower oil mesh 3. This facilitates disassembly, assembly, and cleaning.
[0038] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0039] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0040] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. An oil fume separator, comprising an upper oil screen, a lower oil screen, and a middle oil screen, wherein the middle oil screen is disposed between the upper oil screen and the lower oil screen, characterized in that: The middle oil mesh is equipped with a flow guiding cavity and a smoke blocking structure. The flow guiding cavity is equipped with a partition structure, which divides the flow guiding cavity into two independent flow guiding channels. The upper oil mesh is equipped with a smoke inlet cavity, and the lower oil mesh is equipped with a smoke outlet cavity. The smoke blocking structure extends to the smoke inlet cavity and the smoke outlet cavity respectively. The smoke blocking structure divides the smoke inlet cavity into two independent smoke inlets, and the smoke outlet cavity into two independent smoke outlets. A separation channel is formed between the smoke inlet, the flow guiding channel, and the smoke outlet.
2. The oil fume separator according to claim 1, characterized in that: The upper oil screen has an outwardly protruding upper guide wall, which connects the smoke inlet and the guide air passage; the lower oil screen has an outwardly protruding lower guide wall, which connects the smoke outlet and the guide air passage.
3. The oil fume separator according to claim 2, characterized in that: The separation structure includes a first separator and a second separator. The first separator is connected to the upper guide wall and extends into the guide cavity. The second separator is connected to the lower guide wall and extends into the guide cavity. The ends of the first separator and the second separator abut against each other.
4. The oil fume separator according to claim 1, characterized in that: The smoke-blocking structure includes a first smoke-blocking plate and a second smoke-blocking plate. The first smoke-blocking plate extends from the top of the middle oil mesh towards the smoke inlet chamber, and the second smoke-blocking plate extends from the bottom of the middle oil mesh towards the smoke outlet chamber.
5. The oil fume separator according to claim 1, characterized in that: A blocking element is provided between the smoke inlet and the separating air passage, and between the smoke outlet and the separating air passage.
6. The oil fume separator according to claim 5, characterized in that: The blocking element extends towards the oil mesh.
7. The oil fume separator according to claim 1, characterized in that: The upper and lower oil meshes are detachably connected, and the middle oil mesh is housed between the upper and lower oil meshes.
8. The oil fume separator according to claim 7, characterized in that: One end of the upper oil mesh is hinged to one end of the lower oil mesh, and the other end of the upper oil mesh is magnetically connected to the other end of the lower oil mesh.