Downward-discharge type oil fume extraction structure and integrated cooker
By installing the smoke pipe under and having a built-in fan, the traditional range hood occupies a large space and is inconvenient to maintain is solved, and more efficient fume capture and convenient maintenance are achieved.
Patent Information
- Application Number
- CN202422240621.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-12
AI Technical Summary
Traditionally, the range hood occupies a large space for the hanging cabinet, is inconvenient to maintain, and has poor smoking effect.
The lower-row oil fume structure is adopted, and the smoke pipe is installed downwards and the fan is built into the head to reduce the occupation of the interior space of the cabinet. The air inlet of the machine head is designed to improve the oil fume capture efficiency, and the connection method between the smoke pipe and the fan is optimized to improve assembly convenience.
It improves the efficiency of oil smoke capture, reduces the use of cabinet space, and facilitates inspection and maintenance.
Smart Images
Figure CN223283117U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of integrated stoves, and in particular to a bottom-discharging fume extraction structure and an integrated stove. Background Art
[0002] Traditional range hoods are mostly top-exhaust designs, drawing in fumes through an inlet on top of the unit and exhausting them outdoors through a duct. However, this design has several drawbacks. For example, the fan and duct occupy cabinet space, significantly reducing the user's cabinet storage space. The duct is located between the ceiling and the roof, making inspection and maintenance difficult. Furthermore, top-exhaust range hoods require matching installations, resulting in a high installation height, which places the air inlet far from the range hood, resulting in poor extraction efficiency. Utility Model Content
[0003] In response to the technical problem of defects in traditional range hood designs, the utility model provides a downward-discharge range hood structure and an integrated stove, in which the smoke pipe is installed downward, making inspection and maintenance more convenient; and the fan is built into the machine head, reducing the space occupied inside the cabinet.
[0004] The technical solution provided by the utility model is: a downward exhaust range fumes extraction structure, comprising a machine head, a fan and a smoke duct; an air inlet is provided on the machine head, and the machine head comprises a shell and a back plate, the shell and the back plate are fixedly connected to form a cavity structure with an opening on the lower side, the fan is arranged in the cavity structure, the air inlet of the fan is communicated with the air inlet of the shell, and the air outlet of the fan is opened toward the lower side of the machine head and is communicated with the smoke duct located on the lower side of the machine head.
[0005] Optionally, a projection of the air inlet cross section of the head along the smoke inlet direction of the air inlet is at least partially projected onto the fan.
[0006] Optionally, the smoke duct is connected to the air outlet of the fan through an air outlet hood, and a flip hole is provided on the head near the air outlet of the fan. The edge of the head corresponding to the flip hole is sleeved on the outside of the edge of the air outlet of the fan, and the air outlet hood is sleeved on the outside of the edge of the head corresponding to the flip hole.
[0007] Optionally, a through mounting hole is provided on the back panel, at least one guide column is fixedly provided on the fan, a through guide hole is provided on the guide column, the guide hole is communicated with the mounting hole, and a connecting member is also included, the connecting member passes through the guide hole and the mounting hole, and the connecting member is at least partially located in the guide hole and the mounting hole, and the connecting member is also fixedly connected to the external wall.
[0008] Optionally, an oil guide strip is fixedly provided on the shell, and the oil guide strip is located on the lower side of the air inlet of the shell. An oil receiving shell is provided on the lower side of the oil guide strip, and an oil box is provided in the oil receiving shell. An oil receiving hole is provided on the oil receiving shell, and the oil receiving hole is connected to the oil box.
[0009] Optionally, an oil collecting groove is provided on the oil receiving shell, and the oil receiving hole is provided at the converging point of the inner wall of the oil collecting groove.
[0010] Optionally, the oil guide strip is bent or tilted toward the oil receiving hole to form an oil collection area, and the oil collection area is provided with an oil guide plate, which extends and tilts toward the oil receiving hole.
[0011] Optionally, the fan includes a volute, and an oil guide rib is provided on the side of the volute facing the oil guide strip to guide the grease gathered on the volute to the oil receiving hole.
[0012] Optionally, the oil guide rib is integrally formed with the volute of the fan, and an oil leakage hole and a guide groove are provided at the bottom of the volute of the fan. The oil guide rib is inclined toward the oil leakage hole to guide the grease to the oil leakage hole, and the guide groove is located below the oil leakage hole. The guide groove is inclined toward the oil receiving hole to guide the grease to the oil receiving hole.
[0013] Optionally, a filter and / or a guide plate is provided at the air inlet of the shell.
[0014] An integrated stove comprises the above-mentioned downward exhaust type oil fume extraction structure.
[0015] Beneficial effects
[0016] The technical solution provided by the utility model has the following beneficial effects compared with the existing technology: in order to solve the technical problems of defects in the traditional range hood design, the utility model installs the smoke pipe downward, making inspection and maintenance more convenient; and the fan is built into the head, reducing the space occupied by the internal cabinet. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of a downward exhaust range fumes extraction structure proposed in an embodiment of the present utility model.
[0018] Figure 2 This is an explosion diagram of a downward exhaust range fumes extraction structure proposed in an embodiment of the utility model.
[0019] Figure 3 This is one of the cross-sectional schematic diagrams of the machine head proposed in the embodiment of the present utility model.
[0020] Figure 4 This is the second schematic cross-sectional view of the machine head proposed in the embodiment of the present utility model.
[0021] Figure 5 This is a partial schematic diagram of the machine head proposed in an embodiment of the present utility model.
[0022] Figure 6 This is the third cross-sectional schematic diagram of the machine head proposed in the embodiment of the present utility model.
[0023] Figure 7 This is a schematic structural diagram of a fan proposed in an embodiment of the present utility model.
[0024] Figure 8 This is the fourth cross-sectional schematic diagram of the machine head proposed in the embodiment of the present utility model.
[0025] Figure 9 This is one of the structural schematic diagrams of the machine head proposed in an embodiment of the present utility model. DETAILED DESCRIPTION
[0026] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments.
[0027] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are intended solely to illustrate the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only the relevant portions of the utility model are shown in the accompanying drawings. Terms such as "first," "second," and so on, used in the present utility model, are provided for the convenience of describing the technical solution of the present utility model and do not have a specific limiting effect. They are general references and do not constitute a limitation on the technical solution of the present utility model. It should be noted that, unless conflicting, the embodiments and features within the embodiments of the present application may be combined with one another. In the description of the present utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or locations, are based on the positions or locations shown in the accompanying drawings and are intended solely to facilitate the description of the present utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contain contradictions or conflicts, and all of these are within the scope of protection claimed by this utility model.
[0028] Example 1
[0029] Combined with attachment Figure 1-9 This embodiment proposes a down-exhaust range fumes extraction structure, including a head 10, a fan 11 and a smoke duct 13; an air inlet is provided on the head 10, and the head 10 includes a shell 100 and a back plate 101, the shell 100 and the back plate 101 are fixedly connected to form a cavity structure with an opening on the lower side, the fan 11 is arranged in the cavity structure, the air inlet of the fan 11 is communicated with the air inlet of the shell 100, and the air outlet of the fan 11 is open toward the lower side of the head 10 and is communicated with the smoke duct 13 located on the lower side of the head 10.
[0030] In order to solve the technical problem of defects in the traditional range hood design, the downward exhaust range hood structure of this embodiment installs the smoke pipe 13 downward, making inspection and maintenance more convenient; and the fan 11 is built into the head 10 to reduce the space occupied by the internal cabinet.
[0031] Combined with attachment Figure 1-2 In a bottom exhaust range hood structure of this embodiment, the machine head 10 is directly mounted on the stove top, and the space occupied by the machine head 10 is generally located between the upper wall cabinet and the lower floor cabinet.
[0032] In this embodiment, a fan 11 is provided in the head 10, but two or even more fans 11 may be provided according to actual needs. The air outlet of the fan 11 opens toward the lower side of the head 10, and the air outlet of the fan 11 may be directly connected to the smoke duct 13, or preferably connected to the smoke duct 13 through an air outlet hood 12. The smoke duct 13 can adjust the air outlet direction according to the user environment, and can discharge air to the left or to the right. In an optional embodiment, the air outlet of the air outlet hood 12 and the air inlet of the smoke duct 13 are connected by a snap-fit connection, thereby improving the convenience of assembly. Also, in order to reduce the excessive space occupied by the fan 11, a flat single fan 11 is preferred.
[0033] To ensure effective extraction of cooking fumes, in a preferred embodiment, the cross-section of the air inlet of the handpiece 10, along the direction of smoke intake, is at least partially projected onto the fan 11, preferably onto the air inlet of the fan 11. This allows the fan to more directly draw in cooking fumes from the air inlet of the handpiece 10, reducing their escape.
[0034] The smoke duct 13 typically passes through the floor cabinet and the house's smoke exhaust system. To avoid the smoke duct 13 taking up too much floor cabinet space, in a preferred embodiment, the smoke duct 13 can be a square tube. The installation space of the square tube occupies approximately 180 mm from the wall side of the floor cabinet, thereby improving the utilization rate of the front side of the floor cabinet. In a further embodiment, to connect the square tube to the traditional house's smoke exhaust system, a square-to-round interface can be provided at the end of the square tube. It is conceivable that in this case, since the smoke duct 13 does not take up much space, the floor cabinet can be further equipped with equipment such as a sterilizer or steam oven.
[0035] Obviously, because the head 10 of this embodiment is mounted directly on the countertop, the air inlet on the housing 100 is located directly near the cooking source. This allows the smoke to be quickly drawn in at a lower position during its initial rise, significantly improving the efficiency of smoke capture and the smoke extraction effect. Furthermore, because the fan 11, air hood 12, and smoke pipe 13 are all located below the height of the user, there is no need to climb high, making inspection and maintenance more convenient.
[0036] Combined with attachment Figure 3In a preferred embodiment, the handpiece 10 is provided with a folding hole 102 near the air outlet of the fan 11. The edge of the handpiece 10 corresponding to the folding hole 102 is sleeved onto the outer edge of the air outlet of the fan 11, and the air outlet cover 12 is sleeved onto the outer edge of the handpiece 10 corresponding to the folding hole 102. This embodiment achieves a nested structure, ensuring that oil smoke does not leak out and making the oil smoke exhaust path more reliable.
[0037] Combined with attachment Figure 2 and 4 In an optional embodiment, a through mounting hole 103 is provided on the back plate 101 constituting the head 10, and at least one guide column 110 is fixedly provided on the fan 11, and a through guide hole 111 is provided on the guide column 110, and the guide hole 111 is communicated with the mounting hole 103. It also includes a connecting piece, which passes through the guide hole 111 and the mounting hole 103, and the connecting piece is at least partially located in the guide hole 111 and the mounting hole 103, and the connecting piece is also fixedly connected to the external wall. In this embodiment, when the down-type range hood extraction structure is installed, the bottom surface of the housing 100 is placed on the countertop of the stove, and one or more guide posts 110 run through the front and rear sides of the entire fan 11. In a conceivable embodiment, the connecting member can be a bolt. When the device is installed, it is only necessary to pass the screw portion of the bolt through the guide hole 111 and the mounting hole 103 along the direction of the guide post 110. The corresponding mounting seat is fixed to the outer wall, so that the screw portion of the bolt is threadedly connected to the mounting seat, and the nut portion of the bolt is tightly against the side of the guide post 110 away from the external wall. The fan 11 is indirectly fixed by the external wall and the nut portion. As a result, the load-bearing of the fan 11 mainly relies on the wall, rather than the countertop of the stove, thereby ensuring the strength of the countertop.
[0038] Combined with attachment Figure 5 and 6 In other embodiments, an oil guide strip 14 is fixedly mounted on the housing 100. The oil guide strip 14 is located below the air inlet of the housing 100. An oil receiving shell 15 is disposed below the oil guide strip 14. An oil box 16 is disposed within the oil receiving shell 15. The oil receiving shell 15 is provided with an oil receiving hole 17, which is connected to the oil box 16. In this embodiment, when the oil fume is extracted, the oil fume inhaled at the air inlet of the housing 100 condenses between the housing 100 and the fan 11 and flows downward along the housing 100. When it flows to the oil guide strip 14, the oil flowing on the housing 100 is guided to the oil receiving shell 15 and ultimately introduced into the oil box 16 through the oil receiving hole 17. The oil guide strip 14 preferably has a V-shaped structure and can be fixed to the back surface of the front side of the housing 100 by adhesive.
[0039] It is conceivable that the oil collecting shell 15 can be a structure embedded in the shell 100, and the oil box 16 can be inserted into the oil collecting shell 15 from the outside. In this case, most of the main body of the oil box 16 is hidden inside the machine head 10 instead of being exposed to the oil fume environment, which can reduce the adhesion of oil stains, facilitate cleaning, and be more beautiful.
[0040] Furthermore, to ensure that the oil in the oil receiving housing 15 flows sufficiently into the oil box 16, an oil collecting groove can be provided on the oil receiving housing 15, and an oil receiving hole 17 can be provided at the point of convergence in the inner wall of the oil collecting groove. The oil collecting groove is a groove or recessed surface machined into the oil receiving housing 15, facing the oil box 16. The oil receiving hole 17 is located at the lowest point of the groove or recessed surface, so that the oil flowing into the oil receiving housing 15 can flow naturally into the oil box 16.
[0041] In other embodiments, the oil guide strip 14 is bent or tilted toward the oil receiving hole 17 to form an oil collection area. An oil guide plate 18 is provided at the oil collection area. The oil guide plate 18 extends and tilts toward the oil receiving hole 17. Thus, the provision of the oil guide plate 18 can further guide oil droplets on the oil guide strip 14 toward the oil receiving hole 17.
[0042] The fan 11 includes a volute, Figure 7 and 8 In other embodiments, an oil guide rib 19 is provided on the side of the volute facing the oil guide strip 14 to guide the grease collected on the volute to the oil receiving hole 17. In this way, the oil droplets condensed on the volute of the fan 11 can be guided to the oil receiving hole 17 and eventually flow into the oil box 16.
[0043] It is conceivable that the oil guide rib 19 can be a structure formed on the volute by sheet metal or the like, that is, the oil guide rib 19 and the volute are an integral structure, and the oil guide rib 19 can be formed when the volute protrudes toward the inside or outside of the fan 11. In this embodiment, the oil guide rib 19 is formed inside the volute and can also play an oil guiding role inside the volute, guiding the oil droplets inside the fan 11 to flow toward the oil box 16.
[0044] In a further embodiment, based on the integral formation of the oil guide rib 19 and the volute of the fan 11, an oil leak hole 20 and a guide groove 21 are provided at the bottom of the volute of the fan 11. The oil guide rib 19 is inclined toward the oil leak hole 20 to guide the grease thereto. The guide groove 21 is located below the oil leak hole 20 and is inclined toward the oil receiving hole 17 to guide the grease thereto. In this manner, the oil guide rib 19 can guide condensed oil droplets inside the fan 11 to the oil leak hole 20, which are then guided by the guide groove 21 to flow toward the oil receiving hole 17 and ultimately into the oil box 16.
[0045] Combined with attachment Figure 1 、 2In other embodiments, a filter 22 may be provided at the air inlet of the housing 100 to prevent debris from being sucked in, and a deflector 23 may also be provided to better collect oil smoke and improve the extraction effect. It is conceivable that the filter 22 and the deflector 23 may be provided in combination.
[0046] Example 2
[0047] Combined with attachment Figure 1-9 This embodiment proposes an integrated stove, including the down-discharge range fumes structure described in the technical solution of Example 1.
[0048] The above schematically describes the present invention and its embodiments, which are not restrictive. The accompanying drawings only illustrate one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the above and, without departing from the inventive purpose of the present invention, designs structures and embodiments similar to the technical solution without creatively designing them, they shall fall within the scope of protection of the present invention.
Claims
1. A down-discharge fume extraction structure, characterized in that: It includes a machine head (10), a fan (11) and a smoke pipe (13); An air inlet is provided on the machine head (10), and the machine head (10) comprises a shell (100) and a back plate (101), the shell (100) and the back plate (101) are fixedly connected to form a cavity structure with an opening at the bottom, the fan (11) is arranged in the cavity structure, the air inlet of the fan (11) is communicated with the air inlet of the shell (100), and the air outlet of the fan (11) is open toward the bottom side of the machine head (10) and is communicated with a smoke pipe (13) located at the bottom side of the machine head (10); An oil guide strip (14) is fixedly provided on the housing (100), and the oil guide strip (14) is located on the lower side of the air inlet of the housing (100). An oil receiving shell (15) is provided on the lower side of the oil guide strip (14), and an oil box (16) is provided in the oil receiving shell (15). An oil receiving hole (17) is provided on the oil receiving shell (15), and the oil receiving hole (17) is communicated with the oil box (16).
2. The downward exhaust type range fumes extraction structure according to claim 1, characterized in that: A projection of the air inlet cross section of the machine head (10) along the smoke inlet direction of the air inlet is at least partially projected onto the fan (11).
3. The downward exhaust type range fumes extraction structure according to claim 1, characterized in that: The smoke pipe (13) is connected to the air outlet of the fan (11) through the air outlet cover (12); the machine head (10) is provided with a flip hole (102) near the air outlet of the fan (11); the edge portion of the machine head (10) corresponding to the flip hole (102) is sleeved on the outer side of the edge of the air outlet of the fan (11); the air outlet cover (12) is sleeved on the outer side of the edge portion of the machine head (10) corresponding to the flip hole (102).
4. The downward exhaust type range fumes extraction structure according to claim 1, characterized in that: The back plate (101) is provided with a through-going mounting hole (103), the fan (11) is fixedly provided with at least one guide column (110), the guide column (110) is provided with a through-going guide hole (111), the guide hole (111) is communicated with the mounting hole (103), and further comprises a connecting piece, the connecting piece passes through the guide hole (111) and the mounting hole (103), and the connecting piece is at least partially located in the guide hole (111) and the mounting hole (103), and the connecting piece is also fixedly connected to an external wall.
5. The downward exhaust type range fumes extraction structure according to claim 1, characterized in that: An oil collecting groove is provided on the oil receiving shell (15), and the oil receiving hole (17) is provided at the convergence point on the inner wall of the oil collecting groove.
6. The downward exhaust type range fumes extraction structure according to claim 1, characterized in that: The oil guide strip (14) is bent or tilted toward the oil receiving hole (17) to form an oil collection area. The oil collection area is provided with an oil guide plate (18). The oil guide plate (18) extends toward the oil receiving hole (17) and tilts.
7. The downward exhaust type range fumes extraction structure according to claim 1, characterized in that: The fan (11) includes a volute, and an oil guide rib (19) is provided on the side of the volute facing the oil guide strip (14) for guiding the grease gathered on the volute to the oil receiving hole (17).
8. The downward exhaust type range fumes extraction structure according to claim 7, characterized in that: The oil guide rib (19) is integrally formed with the volute of the fan (11); an oil leakage hole (20) and a guide groove (21) are provided at the bottom of the volute of the fan (11); the oil guide rib (19) is inclined toward the oil leakage hole (20) to guide the grease to the oil leakage hole (20); the guide groove (21) is located below the oil leakage hole (20); and the guide groove (21) is inclined toward the oil receiving hole (17) to guide the grease to the oil receiving hole (17).
9. A bottom exhaust type range fumes extraction structure according to any one of claims 1 to 8, characterized in that: A filter (22) and / or a guide plate (23) are provided at the air inlet of the housing (100).
10. An integrated stove, characterized in that: It comprises a downward exhaust type range fumes extraction structure as described in any one of claims 1 to 9.