Side suction type range hood

Abstract

The utility model relates to a kind of side suction type range hood, comprising: shell, the front side of shell is equipped with from top to bottom rearward inclined air inlet panel;Fan system, be located in the shell, including volute, the volute has front air inlet with opening facing forward and rear air inlet with opening facing backward;The front side top of the shell has the boss portion that protrudes forward relative to the air inlet panel, the portion of the front side of the shell corresponding located the bottom of the boss portion is formed with first air inlet between the upper portion of air inlet panel, the lower edge of the air inlet panel extends to the position where the bottom wall of shell is located, the lower portion of the air inlet panel is formed with second air inlet, the second air inlet is adjacent to the bottom wall of the shell.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a side-suction range hood. Background Technology

[0002] Range hoods have become an indispensable kitchen appliance in modern homes. They generally come in two types: top-mounted and side-mounted. Side-mounted range hoods utilize the principle of vortex air pressure to absorb cooking fumes in an arc, resulting in better fume extraction and preventing users from bumping their heads, thus providing a better user experience. This makes side-mounted range hoods a classic design and widely popular among Chinese consumers.

[0003] Traditional side-draft range hoods typically use an oil filter installed at the front air inlet to filter cooking fumes. However, after prolonged use, grease accumulates on the filter, becoming visible at the air inlet and negatively impacting the hood's appearance and user experience. To address this, existing side-draft range hoods feature a multi-intake channel design with a concealed oil filter. This design includes an outer shell containing a suction assembly. The front of the outer shell is covered by a panel with a smoke inlet. A condenser plate, longitudinally separated from the panel, covers the smoke inlet's visible area. Behind the condenser plate is a mounting plate, which, together with the mounting plate, blocks the airflow between the smoke inlet and the suction assembly. The mounting plate has oil filter holes located outside the visible area of ​​the smoke inlet, which connect to both the smoke inlet and the suction assembly. The patent application CN202121427868.1, entitled "A Range Hood with an Invisible Air Inlet Net", discloses the structure of this side-suction range hood.

[0004] However, the side-suction range hood in the above patent application still has some shortcomings: although the corresponding filter can be hidden and blocked by setting up a condenser plate and a mounting plate to form two air intake channels at the top and bottom, the condenser plate and mounting plate in the patent application are still only concentrated in the middle of the front panel of the range hood (the middle in the vertical direction). When the cooking conditions are more intense, a large amount of rising oil fumes cannot be captured in time, resulting in the escape of oil fumes.

[0005] Therefore, existing side-suction range hoods still need further improvement. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a side-suction range hood that can improve the problem of oil fume escape by effectively simplifying the air intake structure and improving aesthetics, in light of the current state of the technology.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a side-suction range hood, comprising:

[0008] The housing has an air inlet panel that slopes downwards and backwards on the front side.

[0009] A fan system, located within the housing, includes a volute having a forward-facing air inlet and a rear-facing air inlet.

[0010] The front top of the housing has a protruding head that protrudes forward relative to the air inlet panel. A first air inlet is formed between the portion of the front side of the housing located at the bottom of the protruding head and the upper part of the air inlet panel. The lower edge of the air inlet panel extends to the bottom wall of the housing. A second air inlet is formed at the lower part of the air inlet panel, and the second air inlet is adjacent to the bottom wall of the housing.

[0011] As an improvement, the front top of the housing has a guide vane that extends rearward to the top rear side of the air inlet panel and then folds downward. The gap between the guide vane and the air inlet panel forms the first air inlet. The guide vane structure cleverly forms a relatively concealed slit-like air inlet behind the top of the panel, positioned high to facilitate the capture of rising fumes. Simultaneously, because the air inlet is located behind the top of the panel, it is not easily visible from the front, resulting in a cleaner and more aesthetically pleasing appearance. The downward-folding guide vane guides the incoming fume airflow downward towards the front air inlet of the volute, reducing airflow turbulence.

[0012] To achieve smooth airflow at the top of the air inlet panel, the air guide plate includes an upper extension plate extending forward and backward above the air inlet panel, and a lower extension plate extending downward from the rear edge of the upper extension plate. The lower extension plate slopes backward from top to bottom, and the upper extension plate of the air guide plate forms the bottom wall of the convex head. The backward-sloping lower extension plate of the air guide plate better conforms to the downward and backward flow trajectory of the airflow, reduces resistance, guides the airflow more smoothly into the volute, and achieves the purpose of precisely controlling the airflow direction.

[0013] As an improvement, the bottom of the air guide plate also has a support plate extending forward and abutting against the inner wall of the air inlet panel. The support plate and / or the lower part of the air guide plate have multiple first air inlet holes arranged sequentially at intervals in the left-right direction. The opening of these first air inlet holes maintains good airflow guidance and avoids airflow turbulence. The support plate at the bottom of the air guide plate provides structural support for the air inlet panel; that is, the support plate not only serves to create openings but also enhances the structural strength and stability of the air guide plate.

[0014] To maximize the air intake area and optimize the air intake path, the first air intake hole on the support plate is connected to the first air intake hole on the lower part of the guide plate, forming an overall L-shaped air intake hole. This L-shaped hole structure allows airflow to enter simultaneously from both the upper oblique direction of the panel (the hole on the guide plate) and the more forward vertical direction (the hole on the support plate), converging and flowing more smoothly into the first air intake channel. Continuous L-shaped holes are more conducive to forming a coherent airflow than dispersed holes, increasing the effective air intake cross-section. The integrated design of the connecting holes on the guide plate and support plate creates a unified opening area, resulting in a more natural airflow transition, easier processing, and reduced processing costs.

[0015] To achieve a concealed design for the air inlet holes on the air guide plate and support plate, the inner side of the air inlet panel that abuts against the support plate is lower than the upper edge of the air inlet panel. The portion of the upper part of the air inlet panel extending upwards from the position abutting against the support plate is designated as the shielding part. The first air inlet hole at the lower part of the air guide plate is concealed by the shielding part and is not visible from the front. The shielding part at the upper part of the air inlet panel conceals the air inlet holes at the lower part of the air guide plate (and also the air inlet holes on the support plate), making these air inlets invisible from the front of the range hood, resulting in a cleaner appearance. Of course, the shielding part also physically prevents oil droplets or water vapor that may splatter upwards during cooking from directly entering the holes, reducing clogging and cleaning difficulty.

[0016] To match the left-right cooking work area (two burners on the left and right) and improve fume extraction, at least two second air inlets are arranged sequentially along the left-right direction. These at least two left-right arranged second air inlets create a wider and more uniform negative pressure area under the range hood, effectively covering the entire width of the cooktop. For the dispersed fume sources generated by multiple burners used simultaneously, multiple air inlets can more efficiently capture fumes nearby, reducing lateral escape of fumes.

[0017] To ensure efficient intake of low-lying, dispersed fumes from the second air inlet at the bottom, while avoiding aesthetic impact, the lower part of the air inlet panel features a recessed area facing inwards towards the housing, adjacent to the bottom wall of the casing. The top wall of this recessed area extends from front to back and contains a second air inlet hole, which is concealed from the front by the lower edge of the air inlet panel. The low position of the recessed area at the bottom of the panel facilitates the capture of low-lying fumes escaping from the edge of the pot. The hole, located on the top wall of the recessed area and concealed by the lower edge of the panel, is completely hidden, resulting in an aesthetically pleasing appearance. The design of the opening on the top wall of the recessed area, combined with the recessed structure, effectively prevents dripping liquids or large particles from directly entering the air inlet, providing a degree of protection. The recessed area itself forms a small cavity, creating a stable airflow chamber and contributing to a stable incoming airflow.

[0018] To save costs, as an alternative design for the second air inlet on the air inlet panel, each of the second air inlets on the air inlet panel is a strip-shaped opening extending in the left-right direction. The strip-shaped opening can provide a larger air intake area over a longer length.

[0019] As another design option for the second air inlet on the air inlet panel, the air inlet panel includes an upper panel and a lower panel connected to the bottom of the upper panel. The bottom edge of the upper panel and the top edge of the lower panel are connected by a transition fold that extends forward and backward. Each second air inlet is opened on the transition fold. The transition fold is usually located at the "turning point" of the panel or at the rear, which itself has a certain degree of concealment. With the opening located here, combined with the panel shape (such as the air inlet panel tilting forward), it is easier to achieve the effect of front concealment and improve the aesthetics.

[0020] To ensure effective fume extraction on the lower side, each of the second air inlets on the transition fold is a strip-shaped opening extending in the left-right direction.

[0021] As an improvement, the top panel has a larger vertical dimension than the bottom panel. A larger top panel may shift the visual center of gravity of the range hood higher, making it more harmonious with kitchen wall cabinets, or conforming to a specific design language.

[0022] Compared with existing technologies, the advantages of this utility model are as follows: This side-suction range hood features a first air inlet (top) and a second air inlet (bottom), forming a dual air intake channel. The second air inlet is close to the cookware, powerfully capturing the initial rising fumes; the first air inlet, located higher, is specifically designed to effectively remove rising fumes and any potentially diffused fumes, significantly improving the overall extraction rate and reducing fume escape. The convex head structure allows the first air inlet to move forward and closer to the top of the cooking area, shortening the fume extraction path and enhancing the negative pressure and suction power in the top area. The two air inlets are distributed vertically, expanding the effective fume extraction area. The dual air intake structure and the convex head design also help guide fumes more smoothly into the fan system. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the range hood according to Embodiment 1 of this utility model;

[0024] Figure 2 This is a front view of the range hood according to Embodiment 1 of this utility model;

[0025] Figure 3 This is a sectional perspective view of the range hood of Embodiment 1 of this utility model, cut along the front-to-back direction;

[0026] Figure 4This is a cross-sectional view of the range hood of Embodiment 1 of this utility model, cut along the front-to-back direction;

[0027] Figure 5 This is a three-dimensional structural diagram of the range hood of Embodiment 1 of this utility model after omitting the air inlet panel;

[0028] Figure 6 This is a three-dimensional structural diagram of the air inlet panel of Embodiment 1 of this utility model;

[0029] Figure 7 This is a three-dimensional structural diagram of the range hood according to Embodiment 2 of this utility model;

[0030] Figure 8 This is a three-dimensional structural diagram of the range hood according to Embodiment 3 of this utility model;

[0031] Figure 9 This is a sectional perspective view of the range hood of Embodiment 3 of this utility model, cut along the front-to-back direction;

[0032] Figure 10 This is a three-dimensional structural diagram of the air inlet panel of Embodiment 3 of this utility model. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0034] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0035] Example 1

[0036] Figures 1-6This illustration shows a preferred embodiment of the side-draft range hood of the present invention. The side-draft range hood of this embodiment includes a housing 10 and a fan system 4. An air inlet panel 20, sloping downwards and backwards, is provided on the front side of the housing 10. A forward-protruding head 100 is formed at the top front side of the housing 10, located above the air inlet panel. A guide plate 3, extending backwards to the rear of the top of the air inlet panel 20 and then folding downwards, is also provided at the top front side of the housing 10. The gap between the guide plate 3 and the air inlet panel 20 forms a first air inlet 11. A support plate 33, extending horizontally forwards, extends from the bottom of the guide plate 3 and abuts against the inner wall of the air inlet panel 20. Multiple first air inlet holes 330, spaced apart laterally, are provided on the lower part of the guide plate 3 and the support plate 33, and these holes are connected to form an overall L-shaped air inlet. Specifically, the air guide plate 3 includes an upper extension plate 31 extending forward and backward, and a lower extension plate 32 extending downward from the rear edge of the upper extension plate 32. The lower extension plate 32 slopes backward from top to bottom. The upper extension plate 32 of the air guide plate 3 is the bottom wall of the aforementioned protruding head 100. The slope direction of the lower extension plate 32 is basically consistent with the slope direction of the air inlet panel 20, while the support plate 33 is basically perpendicular to the lower extension plate 32 (air inlet panel 20).

[0037] The fan system 4 includes a volute 41, an impeller 42, and a motor. The impeller 42 is located inside the volute 41 and is driven to rotate by the motor. In this embodiment, the fan system 4 is inclined downwards and forwards, that is, the axis of the impeller 42 is slightly inclined downwards and forwards relative to the horizontal direction.

[0038] The air inlet panel 20 substantially covers most of the front area of ​​the housing 10. The upper edge of the air inlet panel is adjacent to the protruding head 100 of the housing 10, and the lower edge is substantially adjacent to the bottom wall of the housing 10 (i.e., the position for hanging an oil cup, not shown). The inner side of the air inlet panel 20 abuts against the support plate 33 at a position lower than the upper edge of the air inlet panel 20. The portion of the upper part of the air inlet panel 20 extending upward from this abutting position (the position abutting against the support plate 33) forms a shielding portion 21, which can shield the first air inlet hole 330 at the lower part of the air guide plate 3 and the first air inlet hole 330 on the support plate 33 (not visible from the front).

[0039] The lower part of the air inlet panel 20 of the housing 10, near the bottom wall of the housing 10, has two symmetrical air inlet recesses 220. The top wall of the air inlet recess extends horizontally from front to back, and a second air inlet hole 221 is opened on it. There are multiple second air inlets 221, arranged sequentially in the left-right direction. The vertical cross-section of the air inlet recess 220 in the front-back direction is triangular, and the bottom wall of the air inlet recess 220 slopes upward from front to back, forming a guide wall. The front opening of the air inlet recess 220 can be understood as the second air inlet 22. The lower edge of the air inlet panel 20 covers the top wall of the air inlet recess 220 and the second air inlet hole 221 located thereon (not visible from the front). A rectangular guide plate 5 is provided inside the housing 10. Its left and right sides are sealed to the side walls of the housing 10, its top is connected to the top wall of the housing 10, and its bottom is folded forward and extends to seal with the inner side wall of the air inlet panel 20. The edge of the bottom of the guide plate 5 that is folded forward is the guide fold edge 51.

[0040] In this embodiment, the guide plate 5 is close to the front wall of the volute 41 and has an opening that is directly opposite the front air inlet 411 of the volute 41. The connection point between the guide flange of the guide plate 5 and the inner side wall of the air inlet panel 20 is lower than the lowest point of the front air inlet 411 of the volute 41.

[0041] In this embodiment, the guide plate 5 divides the internal space of the housing 10 into a first air intake channel 101 and a second air intake channel 102 arranged in a front-to-back manner. The first air intake channel 101 and the second air intake channel 102 are independent. The first air intake channel 101 connects the first air intake 11 and the front air intake 411 of the volute 41, while the second air intake channel 102 connects the second air intake 22 and the rear air intake 412 of the volute 41.

[0042] In this embodiment, two independent airflow paths are physically separated by the guide plate 5. The upper first air inlet 11 and the first air inlet channel 101 are mainly responsible for capturing the rapidly rising main oil fumes, while the lower second air inlet 22 and the second air inlet channel 102 are mainly responsible for capturing the lower-positioned, easily diffused secondary oil fumes or scattered oil fumes. The dual-channel design can simultaneously cover oil fumes at different heights and in different areas, significantly reducing oil fume escape, especially improving the smoke extraction effect for large amounts of oil fumes or wide cookware. In particular, the two independent air inlet channels can effectively reduce mutual interference between the upper and lower airflows, allowing the airflow to be guided more smoothly to different inlets of the fan casing 41, potentially reducing noise and energy consumption.

[0043] This embodiment of the side-suction range hood features a first air inlet (top) and a second air inlet (bottom), forming a dual air intake channel. The second air inlet is closer to the cookware, powerfully capturing the initial rising fumes; the first air inlet, positioned higher, is specifically designed to effectively remove rising fumes and any that may diffuse, significantly improving the overall extraction rate and reducing fume escape. The convex head structure allows the first air inlet to move forward and closer to the top of the cooking area, shortening the fume extraction path and enhancing the negative pressure and suction power in the top area. The two air inlets are distributed vertically, expanding the effective fume extraction area. The dual air intake structure and the convex head design also help guide fumes more smoothly into the fan system.

[0044] Example 2

[0045] Figure 7 Another embodiment of the side-suction range hood of this utility model is shown. The difference between this embodiment and Embodiment 1 is that the air inlet panel 20 is a flat plate, and two second air inlets 22 are opened on the left and right sides of the air inlet panel, both being strip-shaped openings extending in the left-right direction. The rest of the structure is the same as in Embodiment 1. The area of ​​the opening below the air inlet panel (i.e., the area of ​​the second air inlet 22) is typically 0.1 to 1 times the area of ​​the fan air inlet, preferably 0.4 to 0.8 times.

[0046] Example 3

[0047] Figures 8-10 This illustration shows another embodiment of the side-suction range hood of this utility model. The difference between this embodiment and Embodiment 1 is that the air inlet panel 20 includes an upper panel 201 and a lower panel 202 connected to the bottom of the upper panel 201. The bottom edge of the upper panel 201 and the top edge of the lower panel 202 are connected by a transition fold 203 extending forward and backward. Each second air inlet 22 is formed on the aforementioned transition fold 203. Each second air inlet 22 on the transition fold 203 is a strip-shaped opening extending in the left-right direction. The remaining structure is the same as in Embodiment 1.

Claims

1. A side-draft range hood, comprising: The housing (10) has an air inlet panel (20) that slopes from top to bottom and backwards on the front side; The fan system (4) is located inside the housing (10) and includes a volute (41) having a forward-facing air inlet (411) and a rear-facing air inlet (412). The feature is that: the front top of the housing (10) has a protruding head (100) that protrudes forward relative to the air inlet panel (20); a first air inlet (11) is formed between the part of the front side of the housing (10) corresponding to the bottom of the protruding head (100) and the upper part of the air inlet panel (20); the lower edge of the air inlet panel (20) extends to the position of the bottom wall of the housing (10); a second air inlet (22) is formed at the lower part of the air inlet panel (20); and the second air inlet (22) is adjacent to the bottom wall of the housing (10).

2. The side-suction range hood according to claim 1, characterized in that: The front top of the housing (10) has an air guide plate (3) that extends rearward to the rear top of the air inlet panel (20) and then folds down. The gap between the air guide plate (3) and the air inlet panel (20) forms the first air inlet (11).

3. The side-suction range hood according to claim 2, characterized in that: The air guide plate (3) includes an upper extension plate (31) extending forward and backward and located above the air inlet panel (20) and a lower extension plate (32) extending downward from the rear edge of the upper extension plate (31). The lower extension plate (32) is inclined backward from top to bottom. The upper extension plate (31) of the air guide plate (3) forms the bottom wall of the convex head (100).

4. The side-suction range hood according to claim 3, characterized in that: The bottom of the air guide plate (3) also has a support plate (33) that extends forward and abuts against the inner sidewall of the air inlet panel (20). The support plate (33) and / or the lower part of the air guide plate (3) are provided with a plurality of first air inlet holes (330) arranged sequentially and at intervals in the left and right direction.

5. The side-suction range hood according to claim 4, characterized in that: The first air inlet (330) on the support plate (33) is connected to the first air inlet (330) at the bottom of the air guide plate (3), thus forming an air inlet that is L-shaped as a whole.

6. The side-suction range hood according to claim 5, characterized in that: The inner side of the air inlet panel (20) that abuts against the support plate (33) is lower than the upper edge of the air inlet panel (20). The upper part of the air inlet panel (20) extending upward from the position that abuts against the support plate (33) is called the shielding part (21). The first air inlet hole (330) opened at the lower part of the air guide plate (3) is shielded by the shielding part (21) and is not visible from the front.

7. The side-suction range hood according to any one of claims 1 to 6, characterized in that: The second air inlet (22) has at least two arranged sequentially in the left-right direction.

8. The side-suction range hood according to claim 7, characterized in that: The lower part of the air inlet panel (20) has an air inlet recess (220) that is recessed toward the bottom wall of the housing (10) in the region adjacent to the bottom wall of the housing (10). The top wall of the air inlet recess (220) extends from front to back and has a second air inlet hole (221). The second air inlet hole (221) of the air inlet recess (220) is blocked by the lower edge of the air inlet panel (20) and is not visible from the front.

9. The side-suction range hood according to claim 7, characterized in that: Each of the second air inlets (22) on the air inlet panel (20) is a strip-shaped opening extending in the left-right direction.

10. The side-suction range hood according to claim 7, characterized in that: The air inlet panel (20) includes an upper panel (201) and a lower panel (202) connected to the bottom of the upper panel (201). The bottom edge of the upper panel (201) and the top edge of the lower panel (202) are connected by a transition fold (203) extending forward and backward. Each second air inlet (22) is opened on the transition fold (203).

11. The side-suction range hood according to claim 10, characterized in that: Each of the second air inlets (22) on the transition fold (203) is a strip-shaped opening extending in the left-right direction.

12. The side-suction range hood according to claim 10, characterized in that: The vertical dimensions of the upper panel (201) are greater than the vertical dimensions of the lower panel (202).

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