Range hood

Abstract

The application discloses a range hood, comprising: a box body, a front side of the box body is provided with a box body front air inlet; a fan assembly, the fan assembly is arranged in the box body, a front side of the fan assembly is provided with a fan front air inlet; wherein at least part of the fan front air inlet is opposite to the box body front air inlet in the front-rear direction, an area of the opposite part of the fan front air inlet and the box body front air inlet is S1, an area of the box body front air inlet is S, the S1 and the S satisfy: S1 / S>70%. According to the range hood of the application, sufficient air inlet quantity is ensured under the condition that the thickness of the range hood in the front-rear direction is small.

Description

Technical Field

[0001] This application relates to the field of household appliances, and in particular to a range hood. Background Technology

[0002] Traditional range hoods are mainly divided into European-style range hoods and side-draft range hoods. The main problems with European-style range hoods are that they take up a lot of cabinet space and there is a risk of bumping one's head; side-draft range hoods are larger in size, and the forward-leaning front panel can make cooks feel more oppressed and affect the overall aesthetics of the kitchen.

[0003] In addition, many new types of range hoods have emerged on the market. One trend is that the lower part of the range hood (the part below the cabinet) is thinner, giving people a less oppressive feeling. However, at the same time, the smoke extraction effect is worsened because the air inlet is moved back. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of this application is to provide a range hood that ensures sufficient air intake while having a small thickness in the front-to-back direction of the housing.

[0005] According to this application, a range hood includes: a housing with a front air inlet on the front side; and a fan assembly disposed within the housing with a front air inlet on the front side. At least a portion of the fan inlet faces the housing's front air inlet in the front-rear direction. The area of ​​the facing portion of the fan inlet and the housing's front air inlet is S1, and the area of ​​the housing's front air inlet is S. S1 and S satisfy: S1 / S ≥ 70%.

[0006] According to the range hood of this application, by having at least a portion of the fan inlet facing the housing inlet in the front-back direction, and the area of ​​the facing portion of the fan inlet and the housing inlet being S1, and the area of ​​the housing inlet being S, wherein S1 and S satisfy: S1 / S≥70%, the range hood of this application ensures sufficient air intake by ensuring that the housing is sufficiently thin in the front-back direction, through the ratio of the fan inlet and the housing inlet to the housing inlet. Furthermore, since the housing inlet is located on the front side of the housing, it also alleviates to some extent the problem of the air inlet shifting backward and the smoke extraction effect deteriorating due to the thinner housing.

[0007] According to one embodiment of this application, S1 and S satisfy: S1 / S≥80%.

[0008] According to one embodiment of this application, the housing includes: a front side panel of the housing, and the front side panel of the housing is provided with the front air inlet of the housing; the fan assembly includes: a front side panel of the fan, and the front air inlet of the fan is provided on the front side panel of the fan; the front side panel of the housing and the front side panel of the fan are spaced apart in the front-rear direction.

[0009] According to one embodiment of this application, the distance between the front side panel of the housing and the front side panel of the fan is L1, and L1 satisfies: 20mm≤L1≤50mm.

[0010] According to one embodiment of this application, a safety net covering the inlet of the fan is provided on the front side panel of the fan, and the minimum distance between the safety net and the front side panel of the housing is not less than 2mm.

[0011] According to one embodiment of this application, a safety net covering the air inlet of the enclosure is provided on the front side panel of the enclosure, and the safety net is flush with the front side panel of the enclosure; or

[0012] A safety net is provided on the front side panel of the housing to cover the inlet of the housing. The safety net is recessed towards the inside of the housing, and the normal direction of any position on the safety net is towards the inlet of the fan.

[0013] According to one embodiment of this application, the housing further includes: a rear side panel, which is disposed behind and spaced apart from the front side panel, and the fan assembly is disposed between the front side panel and the rear side panel; a bottom side panel, the front end and rear end of which are respectively connected to the bottom end of the front side panel and the bottom end of the rear side panel, and a lower air inlet is provided on the bottom side panel; wherein the fan assembly includes: a rear side panel, which has a rear air inlet, and the rear side panel is spaced apart from the rear side panel to form a gap connecting the lower air inlet and the rear air inlet.

[0014] According to one embodiment of this application, the distance between the rear side plate of the fan and the rear side plate of the housing is L2, and L2 satisfies: 15mm≤L2≤40mm.

[0015] According to one embodiment of this application, the box further includes: a left side panel connected to the left end of the front side panel and the left end of the rear side panel, and a right side panel connected to the right end of the front side panel and the right end of the rear side panel, wherein the distance between the left side panel and the right side panel gradually decreases from front to back.

[0016] According to one embodiment of this application, an opening and closing plate is provided on the front side panel of the housing, and the opening and closing plate is movable relative to the front side panel of the housing to open or close the front air vent of the housing.

[0017] According to one embodiment of this application, the minimum distance between the rotation center of the fan assembly and the center plane of the housing in the left-right direction is d1, and d1 is not greater than 100mm.

[0018] According to one embodiment of this application, the range hood further includes a check valve, which is connected to the exhaust port of the fan assembly and extends out of the top wall of the housing, wherein the minimum distance between the left edge of the check valve and the center plane of the housing in the left-right direction does not exceed 250mm.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the oil fume extraction according to an embodiment of this application (with the opening and closing plate closed);

[0022] Figure 2 This is a schematic diagram of the oil fume extraction according to an embodiment of this application (the safety net is installed on the fan assembly);

[0023] Figure 3 This is a schematic diagram of the oil fume extraction according to an embodiment of this application (the safety net is installed on the housing);

[0024] Figure 4 This is a side view of the oil fume according to an embodiment of this application;

[0025] Figure 5 This is a front view of the oil fume according to an embodiment of this application;

[0026] Figure 6 This is a cross-sectional view of the oil-absorbing fume according to an embodiment of this application;

[0027] Figure 7 This is a top view of the oil fume according to an embodiment of this application.

[0028] Figure label:

[0029] Range hood 100,

[0030] Enclosure 110, front panel 111, hinged panel 111a, rear panel 113, bottom panel 115, left side panel 117, right side panel 119, front air inlet 101, bottom air inlet 105.

[0031] Fan assembly 130, fan front side plate 131, fan rear side plate 133, fan inlet 103.

[0032] Safety net 150, check valve 170, oil cup 190. Detailed Implementation

[0033] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0034] The following is for reference. Figures 1-7 This application describes a range hood 100 according to an embodiment of the present application.

[0035] According to an embodiment of this application, a range hood 100 includes a housing 110 and a fan assembly 130.

[0036] The fan assembly 130 is installed inside the housing 110. When the fan assembly 130 is working, it can generate negative pressure at the air inlet of the housing 110, so that the outside air and the cooking fumes enter the housing 110 together and are discharged to the outside, thereby achieving the effect of sucking up kitchen fumes.

[0037] A fan inlet 103 is provided on the front side of the fan assembly 130, allowing kitchen fumes to enter the fan assembly 130 through the fan inlet 103 and then exit through the exhaust port of the fan assembly 130. A housing inlet 101 is provided on the front side of the housing 110, facilitating the entry of cooking fumes into the housing 110. The kitchen fumes entering the housing 110 can then enter the fan assembly 130 through the fan inlet 103.

[0038] At least a portion of the fan inlet 103 is directly opposite the housing inlet 101 in the front-back direction, so that when the fan assembly 130 is working, it can quickly draw the smoke in the kitchen into the fan assembly 130 through the housing inlet 101 and the fan inlet 103 that are directly opposite each other in the front-back direction.

[0039] The area of ​​the portion of the fan inlet 103 facing the housing inlet 101 can be S1, and the area of ​​the housing inlet 101 is S. S1 and S satisfy: S1 / S ≥ 70%. Therefore, while ensuring the housing 110 is sufficiently thin in the front-to-back direction, the ratio of the portion of the fan inlet 103 to the portion of the housing inlet 101 facing each other ensures sufficient air intake for the range hood 100. Furthermore, since the housing inlet 101 is located on the front side of the housing 110, it also alleviates, to some extent, the problem of the lower air inlet shifting backward and the smoke extraction effect deteriorating due to the thinner housing 110.

[0040] Specifically, a portion of the fan inlet 103 can be directly opposite the housing inlet 101 in the front-back direction, while another portion of the fan inlet 103 can be non-directly opposite to the housing inlet 101. For example, the upper part of the fan inlet 103 may not be directly opposite the housing inlet 101 in the front-back direction, while the lower part of the fan inlet 103 may be directly opposite the housing inlet 101 in the front-back direction. Of course, the area of ​​the fan inlet 103 can be less than or equal to the area of ​​the housing inlet 101, and the fan inlet 103 can be completely directly opposite the housing inlet 101 in the front-back direction.

[0041] It should be noted that the area of ​​the fan inlet 103 and the housing inlet 101 directly opposite each other can be the projected area of ​​the fan inlet 103 and the housing inlet 101 directly opposite each other on the front side panel of the housing 110 or the front side panel of the fan assembly 130, and the area of ​​the housing inlet 101 can be the projected area of ​​the housing inlet 101 on the front side panel of the housing 110 or the front side panel of the fan assembly 130.

[0042] According to the embodiments of this application, the range hood 100 has at least a portion of the fan inlet 103 facing the housing inlet 101 in the front-back direction. The area of ​​the facing portion of the fan inlet 103 and the housing inlet 101 is S1, and the area of ​​the housing inlet 101 is S. S1 and S satisfy: S1 / S ≥ 70%. Thus, while ensuring the housing 110 is sufficiently thin in the front-back direction, the ratio of the fan inlet 103 to the housing inlet 101 ensures sufficient air intake for the range hood 100. Furthermore, the presence of the housing inlet 101 on the front of the housing 110 also mitigates the problem of the air inlet shifting backward and the smoke extraction effect deteriorating due to the thinner housing 110.

[0043] In some embodiments of this application, the area of ​​the portion directly opposite the fan inlet 103 and the housing inlet 101 can be S1, and the area of ​​the housing inlet 101 can be S2, wherein S1 and S2 satisfy: S1 / S≥80%. This allows for a further reduction in the front-to-back dimensions of the housing 110, or, with sufficiently small front-to-back dimensions and a sufficiently thin housing 110, ensuring that the range hood 100 has sufficient air intake and guarantees its effective range hood performance.

[0044] According to some embodiments of this application, the housing 110 includes a front side panel 111, on which a front air inlet 101 is provided; the fan assembly 130 includes a front side panel 131, on which a front air inlet 103 is provided; the front side panel 111 and the front side panel 131 are spaced apart in the front-rear direction.

[0045] In other words, the front panel 131 of the fan and the front panel 111 of the housing are not fitted together; there is a gap between them. This not only facilitates the installation of the fan assembly 130 inside the housing 110, but also ensures sufficient airflow between the fan inlet 103 and the housing inlet 101. Furthermore, because of the gap between the front panel 131 and the housing front panel 111, the fan assembly 130 is not directly exposed, making it less likely to be observed by outsiders and improving the overall aesthetics of the range hood 100.

[0046] Specifically, the front panel 111 of the housing and the front panel 131 of the fan are parallel to each other, or at least the portion of the front panel 111 with the housing inlet 101 and the portion of the front panel 131 with the fan inlet 103 are parallel to each other. The distance between the front panel 111 and the front panel 131 is L1, where L1 satisfies: 20mm ≤ L1 ≤ 50mm. This further ensures sufficient airflow between the fan inlet 103 and the housing inlet 101, guaranteeing the range hood 100's excellent ability to extract cooking fumes.

[0047] In some embodiments of this application, a safety net 150 is provided on the front side plate 131 of the fan. The safety net 150 can cover the fan inlet 103. The safety net 150 has a large number of holes, which can effectively block external debris from entering the fan assembly 130 without affecting the air intake of the fan assembly 130, thereby improving the safety of the fan assembly 130.

[0048] The minimum distance between the safety net 150 and the front side panel 111 of the enclosure is not less than 2mm, which ensures that the safety net 150 will not be directly exposed from the air inlet 101 of the enclosure. At the same time, the safety net 150 and the front side panel 111 of the enclosure are spaced at a certain distance, which also allows the fan assembly 130 to be installed inside the enclosure 110 conveniently and quickly.

[0049] Optionally, the outer periphery of the safety net 150 can be fixed to the front side plate 131 of the fan. The closer the safety net 150 is to its center, the closer it can be to the air inlet of the housing 110. In other words, the safety net 150 can protrude towards the air inlet of the housing 110.

[0050] In some embodiments of this application, the safety net 150 can also be disposed on the front side panel 111 of the housing. The safety net 150 on the front side panel 111 can cover the air inlet of the housing 110, and the safety net 150 can be approximately flush with the front side panel 111 or recessed towards the inside of the housing 110. This effectively prevents external debris from entering the fan assembly 130, improving the safety of the fan assembly 130 during use.

[0051] When the safety net 150 covers the front air inlet 101 of the housing and is recessed towards the inside of the housing 110, the normal direction of any position on the safety net 150 is towards the front air inlet 103 of the fan. As a result, the smoke passing through the safety net 150 can enter the fan assembly 130 more smoothly, ensuring the range hood 100's ability to extract oil fumes.

[0052] According to some embodiments of this application, the housing 110 also includes a rear side panel 113 and a bottom side panel 115. The rear side panel 113 is disposed behind the front side panel 111 and spaced apart from the front side panel 111 in the front-rear direction. The fan assembly 130 is disposed between the front side panel 111 and the rear side panel 113.

[0053] The front end of the bottom side panel 115 is connected to the bottom end of the front side panel 111, and the rear end of the bottom side panel 115 is connected to the bottom end of the rear side panel 113. Thus, the bottom side panel 115, the front side panel 111, and the rear side panel 113 form a U-shaped structure with an open top. The bottom side panel 115 has a lower air inlet 105, allowing external smoke from the range hood 100 to enter the interior of the range hood 110.

[0054] The fan assembly 130 includes a fan rear panel 133, on which a fan rear air inlet is provided. The fan rear panel 133 is spaced apart from the housing rear panel 113 to form a gap connecting the housing lower air inlet 105 and the fan rear air inlet. That is, smoke entering the housing 110 from the housing lower air inlet 105 can enter the fan rear air inlet on the fan rear panel 133 through the gap between the fan rear panel 133 and the housing rear panel 113, and then reach the interior of the fan assembly 130.

[0055] Furthermore, the distance between the rear side plate 133 of the fan and the rear side plate 113 of the housing is L2, wherein L2 satisfies: 15mm≤L2≤40mm. This ensures that the gap between the rear side plate 133 of the fan and the rear side plate 113 of the housing is sufficiently large, guaranteeing not only sufficient air intake for the lower air inlet 105 of the housing and the rear air inlet of the fan at a certain speed, but also ensuring that the fan assembly 130 can be installed more quickly inside the housing 110.

[0056] According to some embodiments of this application, the box 110 further includes a left side panel 117 connected to the left end of the front side panel 111 and the left end of the rear side panel 113, and a right side panel 119 connected to the right end of the front side panel 111 and the right end of the rear side panel 113. The distance between the left side panel 117 and the right side panel 119 gradually decreases from front to back.

[0057] Specifically, the left side panel 117 and the right side panel 119 of the housing are close to each other in the front-to-back direction, so the horizontal cross-section of the housing 110 can be trapezoidal. Thus, the left side panel 117 and the right side panel 119 can gather the oil fumes entering the housing 110 from the lower air inlet 105 to the rear, and then enter the rear air inlet of the fan through the gap between the rear side panel 113 of the housing and the rear side panel 133 of the fan. The left side panel 117 and the right side panel 119 can also serve as guides.

[0058] In some embodiments of this application, a hinged plate 111a is provided on the front side panel 111 of the housing. The hinged plate 111a is movable relative to the front side panel 111 of the housing to open or close the front air vent 101 of the housing. When there is little oil smoke in the kitchen, the hinged plate 111a can be closed to close the front air vent 101 of the housing, thereby making the thickness of the housing 110 thinner in the front-to-back direction. When there is a lot of oil smoke in the kitchen, the hinged plate 111a can be opened to expose the front air vent 101 of the housing, and the oil smoke in the kitchen can enter the interior of the housing 110 simultaneously from the lower air inlet 105 of the housing and the front air vent 101 of the housing.

[0059] Optionally, the hinge plate 111a is rotatably mounted on the front panel 111 of the cabinet to open or close the front air vent 101. The relative angle between the hinge plate 111a and the front panel is adjustable. This allows the degree of opening of the front air vent 101 to be adjusted according to the amount of cooking fumes in the kitchen. When the hinge plate 111a is perpendicular to the front panel 111, the front air vent 101 is fully open. After the hinge plate 111a rotates downwards, the negative pressure zone shifts downwards, allowing cooking fumes to enter the cabinet 110 more quickly through the front air vent 101.

[0060] In some embodiments of this application, the fan assembly 130 can be a turbine fan, and the distance between the rotation center X1 of the fan assembly 130 and the center plane X2 of the housing 110 in the left-right direction is d1, where d1 is not greater than 100mm. This ensures the smoke extraction effect on the left side of the range hood 100 and prevents the fan assembly 130 from being too close to the right side of the housing 110.

[0061] In some embodiments of this application, the range hood 100 further includes a check valve 170, which communicates with the exhaust port of the fan assembly 130 and extends out of the top wall of the housing 110. The minimum distance between the left edge of the check valve 170 and the center plane X2 of the housing 110 in the left-right direction does not exceed 250mm. This allows for convenient replacement of the check valve 170 or the fan assembly 130, improving the installation efficiency of the range hood 100 and reducing its maintenance costs.

[0062] An oil cup 190 can also be installed on the bottom side panel 115 of the housing. The oil that condenses on the housing 110 can flow into the oil cup 190 under the action of gravity. This can effectively prevent oil drips onto the stovetop and improve the overall aesthetics of the range hood 100.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," 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 any suitable manner in one or more embodiments or examples.

[0064] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A range hood, characterized in that, include: The enclosure has a front air inlet on the front side and a bottom air inlet on the bottom side. The box also includes a left side panel at the left end and a right side panel at the right end, and the distance between the left side panel and the right side panel gradually decreases from front to back. A fan assembly is disposed inside the housing, and a fan inlet is provided on the front side of the fan assembly; in At least a portion of the fan inlet is directly opposite the housing inlet in the front-rear direction. The area of ​​the directly opposite portion of the fan inlet and the housing inlet is S1, and the area of ​​the housing inlet is S. S1 and S satisfy: S1 / S≥70%; The enclosure includes: a front panel of the enclosure, on which the front air inlet of the enclosure is provided; the fan assembly includes: a front panel of the fan and a rear panel of the fan, on which the front air inlet of the fan is provided, and on which the rear air inlet of the fan is provided; the front panel of the enclosure and the front panel of the fan are spaced apart in the front-rear direction; the rear panel of the fan and the rear panel of the enclosure are spaced apart to form a gap connecting the lower air inlet of the enclosure and the rear air inlet of the fan. The rear side panel of the housing is located behind the front side panel of the housing and spaced apart from the front side panel of the housing; the fan assembly is located between the front side panel and the rear side panel of the housing. The distance between the front panel of the housing and the front panel of the fan is L1, and L1 satisfies: 20mm≤L1≤50mm; The distance between the rear side panel of the fan and the rear side panel of the housing is L2, and L2 satisfies: 15mm≤L2≤40mm.

2. The range hood according to claim 1, characterized in that, The S1 and the S satisfy: S1 / S≥80%.

3. The range hood according to claim 1, characterized in that, A safety net is provided on the front side panel of the fan to cover the fan inlet, and the minimum distance between the safety net and the front side panel of the housing is not less than 2mm.

4. The range hood according to claim 1, characterized in that, A safety net covering the air inlet of the enclosure is provided on the front side panel of the enclosure, and the safety net is flush with the front side panel of the enclosure; or A safety net is provided on the front side panel of the housing to cover the inlet of the housing. The safety net is recessed towards the inside of the housing, and the normal direction of any position on the safety net is towards the inlet of the fan.

5. The range hood according to claim 1, characterized in that, The enclosure also includes: The bottom side panel of the box body is connected to the bottom end of the front side panel and the bottom end of the rear side panel of the box body, respectively, and the bottom side panel of the box body is provided with a bottom air inlet.

6. The range hood according to claim 5, characterized in that, The enclosure further includes: a left side panel connected to the left end of the front panel and the left end of the rear panel, and a right side panel connected to the right end of the front panel and the right end of the rear panel, wherein the distance between the left side panel and the right side panel gradually decreases from front to back.

7. The range hood according to claim 1, characterized in that, A hinged plate is provided on the front side panel of the enclosure. The hinged plate is movable relative to the front side panel of the enclosure to open or close the air inlet of the enclosure.

8. The range hood according to claim 1, characterized in that, The minimum distance between the rotation center of the fan assembly and the center plane of the housing in the left-right direction is d1, and d1 is not greater than 100mm.

9. The range hood according to claim 1, characterized in that, Also includes: A check valve is provided, which is connected to the exhaust port of the fan assembly and extends out of the top wall of the housing. The minimum distance between the left edge of the check valve and the center plane of the housing in the left-right direction does not exceed 250mm.

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