An oil fume filtering assembly and a range hood

Abstract

The utility model belongs to kitchen appliance technical field discloses an oil fume filtering assembly and range hood. The oil fume filtering assembly includes smoke baffle, rectifier net and oil screen, the smoke baffle is provided with the flow guide hole, the rectifier net sets up in the smoke baffle and covers the flow guide hole, the oil screen is detachably set up in the front of the smoke baffle, and the oil screen is set up with the rectifier net interval. The oil fume filtering assembly simplifies the structure, improves the ability of range hood, and reduces the complexity of assembly, improves the efficiency of operating personnel, and reduces the cost.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to an oil fume filter component and a range hood. Background Technology

[0002] As an indispensable kitchen appliance in modern homes, range hoods quickly remove exhaust fumes and cooking fumes produced by the stove, thus purifying the kitchen environment. To guide the fumes into the main unit, multiple structural components such as baffles and rectifiers are needed. To filter the fumes, oil filters and other structural components are also required.

[0003] Due to the limited space inside the main body, arranging multiple structural components separately can easily lead to poor airflow inside the main body, affecting the range hood's ability to absorb oil fumes. It can also result in complicated assembly steps, affecting the efficiency of operators and increasing costs. Utility Model Content

[0004] The purpose of this utility model is to provide an oil fume filter component and a range hood, which simplifies the structure, improves the ability to extract oil fumes, reduces the complexity of assembly, improves the efficiency of operators, and reduces costs.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An oil fume filter assembly, comprising:

[0007] The smoke baffle plate is provided with guide holes;

[0008] A rectifier mesh, wherein the rectifier mesh is disposed on the smoke baffle and covers the flow guide hole;

[0009] An oil mesh is detachably mounted on the front side of the smoke baffle plate. Along the normal direction of the guide hole, the oil mesh and the rectifier mesh are spaced apart, and the oil mesh and the rectifier mesh overlap at least partially.

[0010] Preferably, the inner wall of the guide hole is provided with an annular guide wall, which extends toward the opposite side of the smoke baffle.

[0011] Preferably, the diameter of the guide wall gradually decreases along its extension direction.

[0012] Preferably, the front of the smoke baffle is provided with a support structure, the support structure including a support plate, and the oil mesh abuts against the support plate and is supported by the support plate.

[0013] Preferably, the support structure further includes a limiting plate, which is fixedly connected to the support plate and extends upward. The limiting plate and the smoke baffle are spaced apart, and the oil mesh is disposed between the limiting plate and the smoke baffle.

[0014] Preferably, the smoke baffle is provided with a fixed bracket, and the fixed bracket is provided with a magnetic attractor. The magnetic attractor magnetically fixes the oil mesh to the fixed bracket, so that the oil mesh and the smoke baffle are spaced apart.

[0015] Preferably, the fixed bracket is provided with a limiting groove, the magnetic suction element is disposed in the limiting groove, and the oil mesh portion is disposed in the limiting groove, so that the limiting groove can limit the oil mesh.

[0016] Preferably, the smoke baffle is connected to an oil receiving plate, which is located below the rectifier mesh and extends towards the front of the smoke baffle. The oil receiving plate is provided with a second oil leakage hole.

[0017] Preferably, the smoke baffle is provided with a first smoke-blocking wall extending towards the front of the smoke baffle on both sides along the horizontal direction, and the bottom end of the first smoke-blocking wall abuts against the oil receiving plate.

[0018] A range hood includes the aforementioned fume filter assembly, and also includes a main body, a front panel assembly, and a fan. The main body has an inner cavity with a front opening. The front panel assembly is disposed at the opening to open or close the inner cavity. The fume filter assembly and the fan are both disposed in the inner cavity, and the fan is located behind the smoke baffle. The air inlet of the fan is connected to the air guide hole.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides an oil fume filter assembly and a range hood. The oil fume filter assembly uses a smoke-blocking plate to isolate the cavity within the main body, effectively blocking oil fumes and preventing them from contaminating the components behind the smoke-blocking plate. Furthermore, the guide holes concentrate negative pressure, improving adsorption capacity. Oil fumes drawn into the range hood must pass through an oil mesh to reach the guide holes, where they are then drawn in by the fan. As oil fumes pass through the oil mesh, they adhere to it; upon passing through the guide holes, they are intercepted by a rectifier mesh. This combination of the oil mesh and the rectifier mesh effectively purifies the oil fumes.

[0021] This fume filtration assembly uses a smoke baffle to fix the oil filter and the rectifier, bringing together multiple parts to simplify the structure. This allows for smooth airflow into the main body of the range hood, improving the fume extraction capacity, reducing assembly complexity, increasing operator efficiency, and lowering costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the range hood described in this embodiment of the utility model;

[0023] Figure 2 This is an exploded view of the range hood described in this embodiment of the utility model;

[0024] Figure 3 This is an exploded view of the fume filter assembly and fan described in the embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the oil fume filter assembly described in an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the smoke-proof plate described in an embodiment of the present utility model;

[0027] Figure 6 yes Figure 5 A magnified view of a portion of point A in the middle.

[0028] In the picture:

[0029] 1. Main body; 11. Opening;

[0030] 2. Front panel assembly;

[0031] 3. Fan; 31. Air inlet;

[0032] 4. Fume Filter Assembly; 41. Smoke Baffle Plate; 411. Flow Guide Hole; 412. Flow Guide Wall; 42. Flow Rectifier; 421. Flow Rectifier Hole; 43. Oil Mesh; 431. Vent Hole; 44. Fixing Bracket; 441. Magnetic Attachment; 442. Limiting Groove; 45. Support Structure; 451. Support Plate; 452. Limiting Plate; 453. Guide Plate; 46. Oil Receiving Plate; 461. First Oil Drain Hole; 462. Second Oil Drain Hole; 47. First Smoke Barrier Wall; 48. Second Smoke Barrier Wall;

[0033] 5. Oil collection box. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] This utility model provides a range hood, such as Figures 1-3 As shown, the range hood includes a main body 1, a front panel assembly 2, and a fan 3. The main body 1 has an inner cavity with a front opening 11. The front panel assembly 2 is disposed in the opening 11 to open or close the inner cavity. The fan 3 is disposed in the inner cavity. When the front panel assembly 2 opens the inner cavity and the fan 3 is activated, a negative pressure is generated in the inner cavity. The range hood can absorb oil fumes from the opening 11 and discharge them through the exhaust pipe to achieve the purpose of purifying the kitchen environment.

[0039] like Figures 3-5 As shown, in order to purify and guide the oil fumes inhaled by the main body 1, the range hood also includes an oil fume filter assembly 4. The oil fume filter assembly 4 is located in the inner cavity and includes a smoke baffle plate 41. The smoke baffle plate 41 has a guide hole 411. The fan 3 is located on the rear side of the smoke baffle plate 41, and the air inlet 31 of the fan 3 is connected to the guide hole 411.

[0040] The fume filter assembly 4 isolates the cavity inside the main body 1 through the smoke baffle 41, which can block the fume to a certain extent and prevent the fume from polluting the parts behind the smoke baffle 41. The guide hole 411 can concentrate the negative pressure and improve the adsorption capacity.

[0041] like Figures 3-5As shown, preferably, the fume filter assembly 4 further includes a rectifier mesh 42 and an oil mesh 43. The rectifier mesh 42 is disposed on the smoke baffle plate 41 and covers the guide hole 411. The oil mesh 43 is detachably disposed on the front side of the smoke baffle plate 41. Along the normal direction of the guide hole 411, the oil mesh 43 and the rectifier mesh 42 are spaced apart, and the oil mesh 43 and the rectifier mesh 42 at least partially overlap. The oil mesh 43 has multiple ventilation holes 431. When the airflow passes through the ventilation holes 431, the fumes will adhere to the positions of the oil mesh 43 without ventilation holes 431, thereby blocking the fumes and purifying the air. The spaced arrangement of the oil mesh 43 and the rectifier mesh 42 can reduce the obstruction to the airflow and ensure smooth airflow. The rectifier mesh 42 has multiple rectifier holes 421, which allows the rectifier mesh 42 to further block the fumes and purify the air, ensuring the cleanliness of the air entering the fan 3.

[0042] In this embodiment, the normal direction of the guide hole 411 refers to the direction perpendicular to the plane in which the guide hole 411 is located. In this embodiment, the normal direction of the guide hole 411 is perpendicular to the smoke baffle plate 41, that is, the front-to-back direction. The oil mesh 43 and the rectifier mesh 42 overlap at least partially to ensure that the airflow path passes through both the oil mesh 43 and the rectifier mesh 42 simultaneously, thus ensuring secondary purification.

[0043] Furthermore, the diameter of the rectifier holes 421 of the rectifier mesh 42 is smaller than the diameter of the vent holes 431 of the oil mesh 43, and the spacing between the rectifier holes 421 of the rectifier mesh 42 is smaller than the spacing between the vent holes 431 of the oil mesh 43. On the one hand, this structure can improve the purification effect of the rectifier mesh 42 on oil fumes, enabling the rectifier mesh 42 and the oil mesh 43 to form a tiered filtration of oil fumes; on the other hand, this structure allows the rectifier mesh 42 to divide the airflow passing through it into multiple fine airflows, thereby disrupting the airflow entering the fan 3, reducing noise and vibration, and optimizing the user experience.

[0044] In this embodiment, the upper edge of the oil mesh 43 is lower than the highest point of the rectifier hole 421. When the vent hole 431 of the oil mesh 43 is blocked, causing airflow to be obstructed when passing through the oil mesh 43, the airflow can bypass the oil mesh 43 and flow from above the oil mesh 43 to between the oil mesh 43 and the rectifier hole 42, prioritizing the range hood's smoke extraction capacity. Moreover, the smoke can still adhere to the oil mesh 43 when it bypasses it, achieving an effective purification effect.

[0045] The fume filter assembly 4 uses a smoke baffle 41 to fix the oil filter 43 and the rectifier 42, bringing together multiple parts, simplifying the structure, making the airflow into the main body 1 of the range hood smooth, improving the fume extraction capacity, reducing the complexity of assembly, improving the efficiency of operators, and reducing costs.

[0046] like Figures 3-5As shown, the inner wall of the guide hole 411 is provided with an annular guide wall 412, which extends towards the opposite side of the smoke baffle 41. That is, the guide wall 412 faces the air inlet 31 of the fan 3. This structure can use the guide wall 412 to block the gap between the fan 3 and the smoke baffle 41. When the fan 3 is started, the negative pressure generated by the fan 3 can act on the guide hole 411 as much as possible, thereby ensuring that the opening 11 of the main body 1 has sufficient suction power and effectively improving the smoke extraction capacity of the range hood.

[0047] Preferably, the diameter of the guide wall 412 gradually decreases along its extension direction. The guide wall 412 has an inward-curving structure. When the airflow passes through the guide hole 411, it will gradually converge under the guidance of the guide wall 412, thereby increasing the airflow speed and improving the range hood's smoke extraction capacity.

[0048] In this embodiment, a fixing bracket 44 is provided on the smoke baffle 41, and a magnetic suction component 441 is provided on the fixing bracket 44. The magnetic suction component 441 magnetically fixes the oil mesh 43 to the fixing bracket 44, so that the oil mesh 43 and the smoke baffle 41 are spaced apart. The fixing bracket 44 can accurately limit the size of the gap between the smoke baffle 41 and the oil mesh 43. By magnetically fixing the oil mesh 43 with the magnetic suction component 441, the stability of the oil mesh 43 can be ensured, and the user can easily disassemble and install the oil mesh 43, simplifying the operation and improving the user experience.

[0049] Preferably, the fixed bracket 44 is provided with a limiting groove 442, the magnetic attractor 441 is disposed within the limiting groove 442, and the oil mesh 43 is partially disposed within the limiting groove 442. The limiting groove 442 can limit the oil mesh 43. Since the magnetic attraction force of the magnetic attractor 441 on the oil mesh 43 is perpendicular to the oil mesh 43, the oil mesh 43 can only be fixed to the smoke baffle 41 by the friction between the oil mesh 43 and the smoke baffle 41, which is very unstable. The limiting groove 442 can directly provide horizontal and vertical forces to the oil mesh 43, thereby ensuring the stability of the oil mesh 43.

[0050] like Figures 4-6 As shown, a support structure 45 is provided on the front of the smoke baffle 41. The support structure 45 includes a support plate 451, and the oil mesh 43 abuts against and is supported by the support plate 451. Since the oil mesh 43 is relatively heavy, it is difficult to ensure the stability of the oil mesh 43 for a long time by relying solely on friction or the supporting force of the limiting groove 442, especially when the fan 3 is started, the oil mesh 43 is subjected to vibration and can easily fall out of the limiting groove 442. However, by providing a support plate 451, the smoke baffle 41 can provide good support for the oil mesh 43, ensuring that the oil mesh 43 can be stably set on the smoke baffle 41 and preventing the oil mesh 43 from falling and causing deformation or falling of the fixing structure.

[0051] Furthermore, the support structure 45 also includes a limiting plate 452, which is fixedly connected to the support plate 451 and extends upward. The limiting plate 452 is spaced apart from the smoke baffle 41, and the oil mesh 43 is disposed between the limiting plate 452 and the smoke baffle 41. The limiting plate 452 can limit the bottom of the oil mesh 43, so that even if the oil mesh 43 is vibrated, the oil mesh 43 will not cross the limiting plate 452 and cause the oil mesh 43 to detach from the support plate 451, thus ensuring the stability of the oil mesh 43.

[0052] Furthermore, the support structure 45 also includes a guide plate 453, which is connected to the end of the limiting plate 452 away from the support plate 451. The guide plate 453 is inclined in the direction away from the smoke baffle plate 41 in an upward direction. The guide plate 453 increases the opening between the limiting plate 452 and the smoke baffle plate 41, making it easier for the user to place the bottom of the oil mesh 43 inside the guide plate 453 when installing it, and then allow the bottom of the oil mesh 43 to slide down between the limiting plate 452 and the smoke baffle plate 41 under the guidance of the guide plate 453.

[0053] In this embodiment, the bottom of the smoke baffle 41 has a forward-protruding edge. The part of the protruding edge is punched and bent to form the support plate 451 and the limiting plate 452 of the support structure 45, thereby simplifying the processing flow and reducing costs.

[0054] It is worth noting that since the smoke baffle 41 is equipped with a support structure 45, the oil screen 43 will not move downward. At this time, the limiting groove 442 can limit the oil screen 43 in the left and right directions and the upward direction to ensure the stability of the oil screen 43 when the fan 3 starts, and to prevent the oil screen 43 from moving sideways and jumping.

[0055] like Figure 3 and Figure 4 As shown, in order to achieve the above purpose, the smoke baffle 41 is provided with two fixed brackets 44. The two fixed brackets 44 are located on opposite sides of the oil mesh 43 in the left and right directions. The limiting groove 442 of one fixed bracket 44 can limit the oil mesh 43 in the upward and left directions, and the limiting groove 442 of the other fixed bracket 44 can limit the oil mesh 43 in the upward and right directions.

[0056] Understandably, as the time it takes for the oil filter 43 and the rectifier 42 to purify the fumes increases, a significant amount of oil will accumulate on them. This oil is easily affected by the hot fumes and will flow downwards. The oil on the oil filter 43 will concentrate on the front, flowing downwards and dripping from below. Conversely, the oil on the rectifier 42 will concentrate on the side facing the oil filter 43, flowing downwards onto the raised edge. Since the bottom of the oil filter 43 is located on the support structure 45 of the raised edge, the fumes on the raised edge may have difficulty flowing out. Over time, this accumulation can make the oil filter 43 difficult to remove and may also produce an odor.

[0057] like Figure 5 As shown, to solve the above problems, the protruding edge is an oil-collecting plate 46. The oil-collecting plate 46 is located below the rectifier mesh 42 and extends towards the front of the smoke-blocking plate 41. The oil-collecting plate 46 forms a first oil-draining hole 461 at the position of the supporting structure 45, and a second oil-draining hole 462 is also provided on the oil-collecting plate 46. The first oil-draining hole 461 is formed by bending the supporting structure 45, but the position of the first oil-draining hole 461 is relatively remote. Therefore, the oil-collecting plate 46 also needs to have a second oil-draining hole 462 separately to ensure that the oil dripping onto the oil-collecting plate 46 can drip down through the first oil-draining hole 461 and the second oil-draining hole 462.

[0058] Furthermore, both sides of the smoke baffle 41 are provided with first smoke-blocking walls 47 extending towards the front of the smoke baffle 41, and the bottom end of the first smoke-blocking wall 47 abuts against the oil-receiving plate 46. The bottom of the oil mesh 43 abuts against the oil-receiving plate 46 or is provided with a small gap, and the bottom end of the first smoke-blocking wall 47 abuts against the oil-receiving plate 46, which is equivalent to sealing off the side of the space between the oil mesh 43 and the smoke baffle, thereby further concentrating the negative pressure generated by the fan 3, and preventing air leakage between the oil mesh 43 and the smoke baffle, which would reduce the suction power at the opening 11 of the range hood.

[0059] In some embodiments, the smoke baffle 41 has second smoke-blocking walls 48 extending towards the front of the smoke baffle 41 on both sides along the horizontal direction, and the second smoke-blocking walls 48 are disposed above the first smoke-blocking wall 47. The second smoke-blocking walls 48 can also reduce the gas exchange between the smoke baffle 41 and the side air, thereby making the negative pressure more concentrated and improving the adsorption capacity.

[0060] Preferably, the second oil drain hole 462 is located below the rectifier mesh 42. It is understood that most of the oil on the oil receiving plate 46 flows down from the rectifier mesh 42. Positioning the second oil drain hole 462 below the rectifier mesh 42 allows this portion of the oil to flow directly through the second oil drain hole 462 to the bottom of the oil receiving plate 46, preventing oil accumulation on the oil receiving plate 46 and further reducing the possibility of the oil producing an odor.

[0061] like Figure 1 and Figure 2As shown, the range hood also includes an oil collection box 5, which is located at the bottom of the main body 1. The opening 11 of the oil collection box 5 can cover the oil filter 43, the first oil leakage hole 461 and the second oil leakage hole 462, thereby ensuring that the dripping oil can enter the oil collection box 5 and prevent the oil from dripping onto the stove and polluting the environment.

[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An oil fume filter assembly, characterized in that, include: Smoke baffle (41), wherein the smoke baffle (41) is provided with a flow guide hole (411); A rectifier mesh (42) is disposed on the smoke baffle (41) and covers the flow guide hole (411). Oil mesh (43) is detachably disposed on the front side of the smoke baffle (41). Along the normal direction of the guide hole (411), the oil mesh (43) and the rectifier mesh (42) are spaced apart, and the oil mesh (43) and the rectifier mesh (42) overlap at least partially.

2. The fume filter assembly according to claim 1, characterized in that, The inner wall of the guide hole (411) is provided with an annular guide wall (412), which extends to the opposite side of the smoke baffle (41).

3. The fume filter assembly according to claim 2, characterized in that, Along the extension direction of the guide wall (412), the diameter of the guide wall (412) gradually decreases.

4. The fume filter assembly according to claim 1, characterized in that, The front of the smoke baffle (41) is provided with a support structure (45), the support structure (45) includes a support plate (451), the oil mesh (43) abuts against the support plate (451) and is supported by the support plate (451).

5. The fume filter assembly according to claim 4, characterized in that, The support structure (45) also includes a limiting plate (452), which is fixedly connected to the support plate (451) and extends upward. The limiting plate (452) and the smoke barrier plate (41) are spaced apart. The oil mesh (43) is disposed between the limiting plate (452) and the smoke barrier plate (41).

6. The fume filter assembly according to claim 1, characterized in that, A fixed bracket (44) is provided on the smoke baffle (41), and a magnetic suction component (441) is provided on the fixed bracket (44). The magnetic suction component (441) magnetically fixes the oil mesh (43) to the fixed bracket (44), so that the oil mesh (43) and the smoke baffle (41) are spaced apart.

7. The fume filter assembly according to claim 6, characterized in that, The fixed bracket (44) is provided with a limiting groove (442), the magnetic suction element (441) is disposed in the limiting groove (442), and the oil mesh (43) is partially disposed in the limiting groove (442). The limiting groove (442) can limit the oil mesh (43).

8. The fume filter assembly according to claim 1, characterized in that, The smoke baffle (41) is connected to an oil receiving plate (46). The oil receiving plate (46) is located below the rectifier mesh (42) and extends to the front of the smoke baffle (41). A second oil leakage hole (462) is provided on the oil receiving plate (46).

9. The fume filter assembly according to claim 8, characterized in that, The smoke baffle (41) has a first smoke barrier wall (47) extending towards the front of the smoke baffle (41) on both sides along the horizontal direction, and the bottom end of the first smoke barrier wall (47) abuts against the oil receiving plate (46).

10. A range hood, characterized in that, The fume filter assembly according to any one of claims 1 to 9 further includes a main body (1), a front panel assembly (2) and a fan (3), wherein the main body (1) has an inner cavity with a front opening (11), the front panel assembly (2) is disposed at the opening (11) to open or close the inner cavity, the fume filter assembly (4) and the fan (3) are both disposed in the inner cavity, and the fan (3) is located on the rear side of the smoke baffle (41), and the air inlet (31) of the fan (3) is connected to the guide hole (411).

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