Range hood

The range hood design addresses the issue of oil smoke hitting electrical equipment by using protrusions and an electrical equipment cover with a flange portion on the hood top plate, preventing damage and reducing costs without an inner panel.

JP7670327B2Active Publication Date: 2025-04-30FUJI IND CO LTD
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Patent Information

Application Number
JP2021137982
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-08-26
Publication Date
2025-04-30
Estimated Expiration
2041-08-26

AI Technical Summary

Technical Problem

Existing range hoods either require an inner panel to prevent oil smoke from hitting electrical equipment, increasing costs and complexity, or lack such protection, risking electrical equipment damage.

Method used

A range hood design that incorporates a hood top plate with protrusions and an electrical equipment cover with a flange portion that contacts the hood top plate, preventing oil smoke and droplets from reaching electrical equipment without the need for an inner panel.

Benefits of technology

Effectively prevents oil smoke and droplets from hitting electrical equipment, enhancing safety and reducing costs by eliminating the need for an inner panel, while ensuring efficient oil smoke discharge outdoors.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a range hood which can prevent soot and oil droplets from contacting with an electric component without providing an inner surface panel.SOLUTION: In a range hood, soot collected in a hood 2 flows along a lower surface 20a of a hood top plate 20 of the hood 2 to be discharged to the outside of the device. In the range hood, an electric component 5 and an electric component cover 6 which covers the electric component 5 while contacting with the lower surface 20a of the hood top plate 20 are attached to the interior of the hood 20. A protruding part 8 is provided in a portion, which is along a contacted portion 10 of the electric component cover 6, in the hood top plate 20. The protruding part 8 prevents soot and oil droplets from flowing to the electric component cover 6 side, and thus the range hood can prevent soot and oil droplets from contacting with the electric component 5 without providing an inner surface panel.SELECTED DRAWING: Figure 7
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Description

[Technical field]

[0001] The present invention relates to a range hood that exhausts oily smoke generated by cooking or the like to the outdoors or the like. [Background technology]

[0002] Various range hoods have been proposed in the past. For example, the first and second range hoods disclosed in Patent Documents 1 and 2 have been proposed. The first range hood is a range hood that includes the hood of the present invention, a hood section corresponding to a blower, and a blower device, and by driving the blower device, collects oily smoke generated by cooking or the like in the hood section, flows it along the upper inner surface of the hood section corresponding to the underside of the hood top plate of the present invention, and discharges it outdoors. The second range hood is equipped with a hood and a blower. An inner panel is attached inside the hood. By driving the blower, the oily smoke generated by cooking, etc. is collected inside the hood, flows along the inner panel, and is discharged outdoors. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-187529 A [Patent Document 2] JP 2013-195049 A Summary of the Invention [Problem to be solved by the invention]

[0004] The first range hood does not have an inner panel, so the hood can have a simpler and more compact structure than the second range hood. However, since the oily smoke flows along the underside of the hood top plate, it can come into contact with electrical equipment such as switches and lighting fixtures inside the hood and cause malfunctions in the electrical equipment. Therefore, an electrical equipment cover is attached inside the hood to cover the electrical equipment and prevent the oily smoke from coming into contact with the electrical equipment. However, oil smoke that flows into the hood and oil droplets flowing along the underside of the hood top plate can easily penetrate into the electrical equipment cover through the contact area between the underside of the hood top plate and the electrical equipment cover, and the penetrated oil smoke or oil droplets can hit the electrical equipment, causing malfunctions in the electrical equipment.

[0005] In the second range hood, the oily smoke flows along the inner panel, and does not flow along the underside of the hood top plate, so by covering electrical equipment such as switches and lighting with the inner panel, there is no path for the oily smoke flowing inside the hood to get into the electrical equipment, as in the first range hood. Moreover, by slanting the inner panel, the oil droplets flowing on the inner panel can be directed in any direction, preventing them from flowing toward the electrical equipment, so that oily smoke and oil droplets do not hit the electrical equipment and cause malfunctions. However, since an inner panel is required in addition to the hood, the number of parts is greater than in the first range hood, the assembly labor is longer, and the cost is higher.

[0006] The present invention has been made to solve the above-mentioned problems, and its object is to provide a range hood that can prevent oily smoke and oil droplets from hitting electrical equipment without providing an inner panel. [Means for solving the problem]

[0007] The range hood of the present invention includes a hood and a blower, and heat adjustment is performed by driving the blower. By reason This range hood captures the generated oily smoke inside the hood, flows it along the underside of the hood top plate, and discharges it outside the unit, and is characterized in that electrical equipment is attached inside the hood and an electrical equipment cover is attached to the underside of the hood top plate and covers the electrical equipment, and a convex portion is provided on the portion of the hood top plate that is in contact with the part of the electrical equipment cover and protrudes downward below the underside of the hood top plate.

[0008] In the range hood of the present invention, the electrical equipment cover can have a cover portion that covers the electrical equipment and a flange portion that contacts the underside of the hood top plate, and the flange portion can be adjacent to the electrical equipment side of the convex portion. This makes it difficult for oily smoke to adhere to the side surface of the electrical equipment of the protruding portion.

[0009] In the range hood of the present invention, the lower surface of the convex portion and the lower surface of the flange portion may be flush with each other. This makes it more difficult for range hood users to touch the end face of the flange when cleaning the hood, thereby improving safety.

[0010] In the range hood of the present invention, the lower surface of the convex portion may protrude downward beyond the lower surface of the flange portion. This makes it more difficult for range hood users to touch the end faces of the flanges when cleaning inside the hood, thereby improving safety.

[0011] In the range hood of the present invention, when the electrical equipment cover is not attached to the hood, the flange portion is inclined upward, and when the electrical equipment cover is attached to the hood, the flange portion elastically deforms in a horizontal direction and is pressed against the underside of the hood top plate. This prevents gaps from occurring at the contact area between the flange and the hood top plate, preventing oil smoke and oil droplets from getting into the electrical equipment. In addition, it is possible to prevent the tip of the flange portion from floating up and separating from the underside of the hood top plate and projecting below the underside of the convex portion, thereby ensuring safety. Effect of the Invention

[0012] According to the range hood of the present invention, the provision of a convex portion prevents oil smoke and oil droplets from flowing to the electrical equipment from the contact area between the hood top plate and the electrical equipment cover, so that oil smoke and oil droplets can be prevented from hitting the electrical equipment without providing an inner panel. [Brief description of the drawings]

[0013] [Figure 1] 1 is an overall perspective view showing an embodiment of a range hood of the present invention. [Diagram 2] 1 is an overall plan view showing an embodiment of a range hood of the present invention. [Diagram 3] FIG. 2 is an overall bottom view showing an embodiment of the range hood of the present invention. [Figure 4] FIG. 2 is a bottom view of the range hood according to the embodiment of the present invention with the baffle plate removed. [Diagram 5] 3 is a cross-sectional view of the range hood shown in FIG. 2 along line AA. [Figure 6] 3 is a BB cross-sectional view of the range hood shown in FIG. 2. [Figure 7] 6 is an enlarged view of a portion C of the range hood shown in FIG. 5. [Figure 8] FIG. [Figure 9] FIG. 4 is an enlarged view of a portion D of the range hood shown in FIG. [Figure 10] 8 is an enlarged view of a portion E of the range hood shown in FIG. 7. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a range hood according to an embodiment of the present invention; The overall configuration of the range hood will be described with reference to Fig. 1 to Fig. 6. Fig. 1 is an overall perspective view of the range hood, Fig. 2 is an overall plan view of the range hood, Fig. 3 is an overall bottom view of the range hood, Fig. 4 is a bottom view of the range hood with the baffle plate removed, Fig. 5 is an AA cross-sectional view of the range hood shown in Fig. 2, and Fig. 6 is a BB cross-sectional view of the range hood shown in Fig. 2. Range hood 1 comprises a hood 2 and a main body 3. Hood 2 is box-shaped with an open bottom, consisting of a hood top plate 20 and a peripheral plate 21, and peripheral plate 21 has a rectangular planar shape, consisting of a front side plate 22, a rear side plate 23, a left side plate 24, and a right side plate 25. The front side is the side facing the person cooking when range hood 1 is installed, the rear side is the side facing the front side, the left side is the side to the left of the person cooking when range hood 1 is installed, and the right side is the side to the right of the person cooking when range hood 1 is installed.

[0015] As shown in FIG. 5, an opening 26 is formed in the hood top plate 20 near the rear side plate 23, and a filter 27 is attached around the opening 26. A baffle plate 28 is attached inside the hood 2. The baffle plate 28 is located below the filter 27 and covers the filter 27. As shown in FIG. 3, an outer peripheral surface 28a of the straightening plate 28 and an inner surface 21a of the peripheral plate 21 of the hood 2 are spaced apart from each other to form an inlet portion 29. As shown in Figures 1 and 2, the main body 3 is box-shaped with an open bottom and is composed of an upper panel 30 and a peripheral panel 31. The peripheral panel 31 has a rectangular planar shape and is composed of a front side panel 32, a rear side panel 33, a left side panel 34, and a right side panel 35.

[0016] 5, the blower 4 is provided in the main body 3. The blower 4 has a motor 40 and a fan 41. By rotating fan 41 with motor 40 to drive blower 4, oily smoke generated during cooking or the like is collected inside hood 2 through inlet 29, flows along underside 20a of hood top plate 20, and is sucked in by blower 4 through filter 27 via opening 26, and exhausted outside the unit. For example, it is exhausted to the outdoors through a duct or the like (not shown). Electrical equipment 5 is provided near the front side panel 22 inside the hood 2. For example, an operating section 50 such as a switch and a light 51 are attached.

[0017] The electrical equipment 5 is attached at a position opposite the front inlet portion 29a between the inner surface 22a of the front side panel 22 and the front outer peripheral surface 28a-1 of the straightening plate 28, and is exposed to oily smoke. Therefore, an electrical equipment cover 6 is provided inside the hood 2, and the upper outer peripheral end of the electrical equipment cover 6 is brought into contact with the contacted portion 10 of the underside 20a of the hood top plate 20 to cover the electrical equipment 5. This prevents the electrical equipment 5 from being exposed to oily smoke. 3, in the embodiment, the rear side upper portion 6a, the left side upper portion 6b, and the right side upper portion 6c of the electrical component cover 6 contact the underside 20a of the hood top plate 20, and the rear side upper portion 6a, the left side upper portion 6b, and the right side upper portion 6c have a substantially U-shaped planar shape that faces the front side. In other words, the rear side upper portion 6a, the left side upper portion 6b, and the right side upper portion 6c form the upper outer peripheral edge.

[0018] As shown in Figures 4 and 6, electrical wiring (not shown) runs between the electrical equipment 5 and the main body 3, so a wiring cover 7 is attached to the underside 20a of the hood top plate 20 to prevent oily smoke from reaching the electrical wiring. The wiring cover 7 has an elongated, upward C-shape with a bottom panel 70 and side panels 71 on both sides, with one longitudinal end protruding toward the electrical equipment 5 through the hole 6d in the electrical equipment cover 6 and the other longitudinal end communicating with the inside of the main body 3 through the wiring hole 20b in the hood top panel 20.

[0019] 1, 2, and 3, a protrusion 8 is provided on the hood top plate 20 so as to surround the electrical component cover 6. In other words, the protrusion 8 is provided on a portion of the hood top plate 20 that is along the contacted portion 10 of the electrical component cover 6 with which the electrical component cover 6 comes into contact. The protrusion 8 is a downward protrusion that protrudes below the lower surface 20a of the hood top plate 20. As a result, the convex portion 8 surrounds the contact portion between the electrical equipment cover 6 and the underside 20a of the hood top plate 20, so that oil droplets flowing along the underside 20a of the hood top plate 20 toward the electrical equipment 5 (electrical equipment cover 6) can be dropped by the convex portion 8.This prevents oil smoke that has flowed into the hood 2 and oil droplets flowing along the underside 20a of the hood top plate 20 from entering the electrical equipment cover 6 from the contact portion between the hood top plate 20 and the electrical equipment cover 6, and prevents oil smoke and oil droplets from hitting the electrical equipment 5. Moreover, since it does not have an inner panel, the range hood can be made inexpensive.

[0020] The electrical equipment 5, the electrical equipment cover 6, and the protrusion 8 will be described in detail with reference to Fig. 7 to Fig. 10. Fig. 7 is an enlarged view of a portion C of the range hood shown in Fig. 5, Fig. 8 is a perspective view of the electrical equipment cover, Fig. 9 is an enlarged view of a portion D of the range hood shown in Fig. 3, and Fig. 10 is an enlarged view of a portion E of the range hood shown in Fig. 7. 7, the operating unit 50 of the electrical equipment 5 is attached to a downward plate 52a on the front side of the bracket 52, and the lighting 51 is attached to a horizontal plate 52b of the bracket 52. The horizontal plate 52b of the bracket 52 is in contact with the underside 20a of the hood top plate 20, and the bracket 52 is fixed to the hood top plate 20 by screwing a screw 53 into the horizontal plate 52b from the hood top plate 20, and the operating unit 50 and the lighting 51 are attached inside the hood 2. A lens 54 that diffuses the light of the lighting 51 is provided on the bracket 52.

[0021] As shown in Figure 2, the contacted portion 10 of the electrical equipment cover 6 on the hood top plate 20 is made up of a rear contacted portion 10a which contacts the rear upper portion 6a of the electrical equipment cover 6, a left contacted portion 10b which contacts the left upper portion 6b of the electrical equipment cover 6, and a right contacted portion 10c which contacts the right upper portion 6c of the electrical equipment cover 6, and has an approximately C-shaped planar shape facing the front side. As shown in Figure 2, the convex portion 8 has an approximately C-shape facing the front side, with a rear side convex portion 8a that fits along the rear side contacted portion 10a of the hood top plate 20, a left side convex portion 8b that fits along the left side contacted portion 10b of the hood top plate 20, and a right side convex portion 8c that fits along the right side contacted portion 10c of the hood top plate 20, and the convex portion 8 is provided in the portion of the hood top plate 20 that fits along the contacted portion 10 of the electrical equipment cover 6. The central portion of the rear protrusion 8a in the left-right direction is formed into a long U-shape toward the rear side, and serves as a reinforcing protrusion 8g. The reinforcing protrusion 8g reinforces the hood top plate 20.

[0022] As shown in Figure 8, the electrical equipment cover 6 has a cover portion 60 which covers the electrical equipment 5 and a flange portion 61 which contacts the underside 20a of the hood top plate 20, and the cover portion 60 has a container-like shape with the top and front open and is composed of a bottom side cover plate 62, a rear side cover plate 63, a left side cover plate 64, and a right side cover plate 65. The flange portion 61 has a roughly U-shaped planar shape facing the front, with a rear side flange portion 66 that is continuous with the upper part of the rear side cover plate 63, a left side flange portion 67 that is continuous with the upper part of the left side cover plate 64, and a right side flange portion 68 that is continuous with the upper part of the right side cover plate 65. In other words, the rear flange portion 66 is the rear upper portion 6a of the electrical equipment cover 6, the left flange portion 67 is the left upper portion 6b of the electrical equipment cover 6, and the right flange portion 68 is the right upper portion 6c of the electrical equipment cover 6.

[0023] The front side portion 62a of the bottom side cover plate 62 of the electrical equipment cover 6 is supported in contact with the inner surface 22a and the lower inward piece 22b of the front side plate 22 of the hood 2, and the rear side cover plate 63 is fixed to the rear side downward plate 52c of the bracket 52 with screws 69, thereby attaching the electrical equipment cover 6 inside the hood 2, and the flange portion 61 is in contact with the contacted portion 10 of the hood top plate 20. For example, the rear flange portion 66 contacts the rear contacted portion 10a, the left flange portion 67 contacts the left contacted portion 10b, and the right flange portion 68 contacts the right contacted portion 10c.

[0024] As shown in FIG. 9, the rear flange portion 66 is adjacent to the electrical equipment side of the rear convex portion 8a, the left flange portion 67 is adjacent to the electrical equipment side of the left convex portion 8b, the right flange portion 68 is adjacent to the electrical equipment side of the right convex portion 8ca, and the flange portion 61 is adjacent to the electrical equipment side of the convex portion 8. Because the flange portion 61 is adjacent to the electrical equipment side of the protrusion 8, the oily smoke flowing inside the hood 2 flows along the underside 61a of the flange portion 61, and less oily smoke hits the electrical equipment side of the protrusion 8. In other words, if the flange portion 61 were not present, the oily smoke would flow along the underside 20a of the hood top plate 20, and more oily smoke would hit the electrical equipment side of the protrusion 8. This makes it difficult for oily smoke to adhere to the side surface of the protrusion 8 on which the electrical equipment is mounted.

[0025] 10, the convex portion 8 has a cross-sectional shape that forms an upward recess 83 with an electric equipment side downward portion 80 that is continuous with the hood top plate 20, an opposite side to the electric equipment downward portion 81, and a horizontal portion 82 that is continuous with the lower portion of the electric equipment side downward portion 80 and the lower portion of the opposite side to the electric equipment downward portion 81, the surface of the electric equipment side downward portion 80 that is continuous with the underside 20a of the hood top plate 20 is the electric equipment side surface 8d of the convex portion 8, the surface of the opposite side to the electric equipment downward portion 81 that is continuous with the underside 20a of the hood top plate 20 is the opposite side to the electric equipment surface 8e of the convex portion 8, and the lower surface of the horizontal portion 82 is the underside 8f of the convex portion 8. The opposite side to the electric equipment is the opening 26 side.

[0026] The electrical equipment side downward portion 80 (electrical equipment side surface 8d) of the protrusion 8 is perpendicular to the hood top plate 20 (lower surface 20a) so that the end surface 61b of the flange portion 61 of the electrical equipment cover 6 can contact it without any gap. The right angle includes 90 degrees ±α degrees. The downward portion 81 of the convex portion 8 opposite the electrical equipment (the side opposite the electrical equipment 8e) is inclined with respect to the hood top plate 20 (the underside 20a), so that oil smoke flowing to the horizontal portion 82 flows smoothly toward the filter 27, which is in the direction opposite the electrical equipment 5, and oil droplets flowing along the underside 20a of the hood top plate 20 easily flow down.

[0027] The height of convex portion 8 (the distance from the underside 20a of hood top plate 20 to the underside 8f of convex portion 8) is greater than the thickness of flange portion 61, and since flange portion 61 is in contact with the underside 20a of hood top plate 20, the height of the underside 61a of flange portion 61 (the distance from the underside 20a of hood top plate 20 to the underside 61a of flange portion 61) is less than the height of convex portion 8, and the underside 8f of convex portion 8 protrudes downwardly further than the underside 61a of flange portion 61. This makes it difficult for a range hood user or the like to touch the end surface 61b of the flange portion 61 when cleaning the inside of the hood 2, thereby improving safety.

[0028] Although not shown in the figure, the thickness of flange portion 61 may be made the same as the height of convex portion 8, or flange portion 61 may be connected to hood underside 20a via an intermediate material, so that the underside 8d of convex portion 8 and the underside 61a of flange portion 61 are at the same height. This improves safety by making it difficult for a user to touch the end surface 61b of the flange portion 61. In addition, the inner surface of the hood 2 has fewer projections and recesses, improving the appearance.

[0029] A method for attaching the electrical component cover 6 will now be described. As shown by the dotted line in Figure 10, when the electrical equipment cover 6 is not attached, the flange portion 61 is inclined upward so that the tip portion 61c, which is the side of the end face 61b, is higher than the base end portion 61d, which is the cover portion 60 side. When attaching the electrical equipment cover 6, first, the tip 61c of the flange portion 61 is brought into contact with the underside 20a of the hood top plate 20, and in that state, an upward force is applied to the electrical equipment cover 6 to press the flange portion 61 against the underside 20a of the hood top plate 20, so that the flange portion 61 is elastically deformed in a horizontal direction, and the tip portion of the flange portion 61 is horizontal and closely attached to the underside 20a of the hood top plate 20. In that state, the screw 59 is tightened and attached. In the embodiment, the entire length of the flange portion 61 is closely attached to the underside 20a of the hood top plate 20, and the flange portion 61 is parallel to the hood top plate 20, but only the end 61b of the flange portion 61 is closely attached to the underside 20a of the hood top plate 20, and the flange portion 61 does not have to be parallel to the hood top plate 20. The length of the portion where the flange portion 61 is closely attached to the underside 20a of the hood top plate 20 is arbitrary.

[0030] By attaching the flange portion 61 by elastically deforming it, the tip of the flange portion 61 is securely attached to the underside 20a of the hood top plate 20, no gap occurs at the contact portion between the flange portion 61 and the hood top plate 20, and oil smoke and oil droplets can be prevented from entering the electrical equipment 5 side. In addition, after the electrical equipment cover 6 is attached, the tip of the flange portion 61 can be prevented from floating up and separating from the underside 20a of the hood top plate 20 and projecting below the underside 8d of the protrusion 8, thereby ensuring safety. If the tip of the flange portion 61 protrudes downward from the lower surface 8d of the projection 8, a user may come into contact with the tip of the flange portion 61 when cleaning the inside of the hood 2, and may be injured.

[0031] It is preferable that the end face 61b of the projection 8 contact the electrical equipment side face 8d and the flange portion 61, but in this embodiment, a clearance is necessary for mounting, so there is a slight gap. [Explanation of symbols]

[0032] 1...range hood, 2...hood, 3...main body, 4...blower, 5...electrical equipment, 6...electrical equipment cover, 7...wiring cover, 8...convex portion, 8a...rear side convex portion, 8b...left side convex portion, 8c...right side convex portion, 8d...side of electrical equipment of convex portion, 8e...opposite side of electrical equipment of convex portion, 8f...underside of convex portion, 10...contacted portion of electrical equipment cover, 10a...rear side contacted portion, 10b...left side contacted portion, 10c...right side contacted portion, 2 0...hood top plate, 20a...underside, 21...peripheral panel, 22...front side panel, 23...rear side panel, 24...left side panel, 25...right side panel, 27...opening, 28...baffle plate, 40 motor, 41...fan, 50...operating section, 51...lighting, 60...cover section, 61...flange section, 61a...underside of flange section, 61b...end surface of flange section, 66...rear side flange section, 67...left side flange section, 68...right side flange section.

Claims

1. A range hood includes a hood and a blower, and by driving the blower, oily smoke generated during cooking is collected in the hood, flows along the underside of the hood top plate of the hood, and is discharged outside the range hood. An electrical component cover is attached to the inside of the hood and in contact with the lower surface of the hood top plate to cover the electrical component, A range hood characterized in that a convex portion that protrudes downward below the underside of the hood top plate is provided in a portion of the hood top plate that is aligned with the portion that is contacted by the electrical equipment cover.

2. The range hood according to claim 1, The electrical equipment cover has a cover portion that covers the electrical equipment and a flange portion that contacts the underside of the hood top plate, and the flange portion is adjacent to the electrical equipment side of the protrusion.

3. The range hood according to claim 2, A range hood in which the lower surface of the convex portion and the lower surface of the flange portion are flush with each other.

4. The range hood according to claim 2, A range hood in which a lower surface of the convex portion protrudes downward beyond a lower surface of the flange portion.

5. In the range hood according to any one of claims 2, 3 and 4, When the electrical equipment cover is not attached to the hood, the flange portion is inclined upward, and when the electrical equipment cover is attached to the hood, the flange portion elastically deforms in a horizontal direction and is pressed against the underside of the hood top plate.

Citation Information

Patent Citations

  • Thin range hood

    JP2006170539A

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    JP2011017465A

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