Range hood

Abstract

The utility model relates to a range hood which comprises a machine shell, a range hood cover and a range hood cover, the reinforcing plate is arranged in the machine shell and is connected with a rear side plate of the machine shell; the rear side plate is provided with a boss protruding towards the interior of the machine shell, the reinforcing plate is connected with the top of the boss through a fastener, and when the reinforcing plate and the boss are connected in place, a gap allowing oil to flow through is formed between the reinforcing plate and a main body of the rear side plate. The utility model has the advantages that the oil path can be effectively shortened, and greasy dirt attached to the reinforcing plate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a range hood. Background Art

[0002] A range hood is a kitchen appliance for purifying the kitchen environment. The range hood works based on the principle of fluid dynamics. It sucks and discharges oil fumes through a centrifugal fan installed inside the range hood, and uses a filter screen to filter some oil particle. The centrifugal fan includes a volute, an impeller installed in the volute, and a motor that drives the impeller to rotate. When the impeller rotates, a negative pressure suction is generated at the center of the fan, sucking the oil fumes below the range hood into the fan. After being accelerated by the fan, the oil fumes are collected by the volute and guided out of the room.

[0003] Range hoods usually include side-suction type and top-suction type. For traditional side-suction range hoods or European near-integrated range hoods, in order to ensure that the box body does not deform during transportation, there is usually a bottom reinforcement plate at the bottom of the top rear plate of the box body. The bottom reinforcement plate is connected to both sides of the top rear plate by screws. The oil in the volute of the range hood flows out of the volute, then flows through the oil guide plate to the top rear plate of the box body, and then through the bottom reinforcement plate to the oil cup. This oil flow path is long and the residence time in the oil fume cavity is long. In particular, when the user disassembles the grille and cleans the grille, it is also necessary to synchronously clean the oil stains on the bottom reinforcement plate, increasing the cleaning workload of the user. If not cleaned in time, the bottom reinforcement plate is close to the grille, and the remaining oil stains on the bottom reinforcement plate will cause the oil fume odor to escape.

[0004] Therefore, the existing range hoods still need to be further improved. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a range hood that can effectively shorten the oil flow path and reduce the attachment of oil stains to the reinforcement plate according to the current situation of the prior art.

[0006] The technical solution adopted by the utility model to solve the above technical problem is as follows: A range hood, comprising:

[0007] A casing, including a rear side plate extending vertically;

[0008] A reinforcement plate, disposed inside the casing and connected to the rear side plate of the casing;

[0009] The rear side plate has a convex platform protruding into the casing. The reinforcement plate is in contact with the top of the convex platform and is connected by a fastener. In a state where the reinforcement plate is connected to the convex platform in place, there is a gap for the oil liquid to flow through between the reinforcement plate and the main body of the rear side plate.

[0010] In order to further improve the strength of the rear side plate of the casing, the inner side surface of the rear side plate has a press profile that is recessed toward the outside of the casing, and the boss is arranged on the bottom wall of the press profile.

[0011] In order to facilitate connection with the rear side plate, the rear side edge of the reinforcing plate has a downwardly folded edge, and the folded edge is in contact with the top of the boss and is connected by the fastener.

[0012] As an improvement, the fastener is a screw.

[0013] In order to avoid contact between the rear side panel (especially the top and bottom sides of the rear side panel) and the folded edge as much as possible, the upper and lower size ranges of the press should be reasonably designed. Preferably, the top side of the press is higher than the top of the folded edge, and the bottom side of the press is lower than the bottom of the folded edge.

[0014] In order to achieve effective support of the rear side plate by the reinforcing plate, the profile is a long strip profile extending in the left-right direction, and there are at least two bosses arranged at intervals along the length direction of the profile.

[0015] In order to facilitate the positioning of the reinforcement plate during the initial installation process, the rear side plate also has a first limiting bulge and a second limiting bulge protruding forward and arranged at intervals in the up and down directions. The upper and lower sides of the folded edge of the reinforcement plate are respectively against the first limiting bulge and the second limiting bulge.

[0016] In order to limit the rear side of the reinforcement plate, the casing includes a bottom plate connected to the rear side plate, the reinforcement plate is inclined upward from front to back, and the bottom plate has a limit stop portion extending upward and abutting against the front side of the reinforcement plate at a position corresponding to the front side of the reinforcement plate.

[0017] In order to conveniently receive the oil falling from the rear side plate, an oil cup is also included at the bottom of the casing, and an oil leakage hole penetrating from top to bottom is also opened on the bottom plate of the casing corresponding to the area above the oil cup.

[0018] In order to guide the oil dripping from the fan system downward to the oil cup through the rear side plate, it also includes:

[0019] A fan system is disposed in the casing;

[0020] The oil guide plate is located below the fan system and is used to receive the oil dripping from the fan system. The oil guide plate is tilted downward from the front to the back as a whole, and its rear side is connected to the rear side plate of the casing.

[0021] In order to reduce the adverse impact of the oil guide plate on the ventilation air volume, strip-shaped ventilation holes are provided in the oil guide plate along the front-rear direction, and the outer peripheral edge of the strip-shaped ventilation holes is turned up and extended to form an annular oil retaining edge.

[0022] Compared with the prior art, the advantages of the present utility model are as follows: by providing a convex platform protruding into the casing on the rear side plate of the casing, the reinforcing plate is connected to the top of the convex platform and connected by fasteners. Thus, in the state where the reinforcing plate is connected to the convex platform in place, a gap through which the oil fluid can flow is formed between the reinforcing plate and the main body of the rear side plate, avoiding or reducing the flow of the oil fluid through the reinforcing plate. This not only effectively shortens the entire oil path of the range hood, but also correspondingly reduces the attachment of oil stains to the reinforcing plate, eliminating the need for frequent cleaning of the reinforcing plate, reducing the cleaning workload of the user, and avoiding the problem of the escape of oil fume odor caused by the residual oil stains on the reinforcing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a perspective structural view of the range hood according to an embodiment of the present utility model;

[0024] Figure 2 is a vertical sectional view of the range hood according to an embodiment of the present utility model cut along the front-rear direction;

[0025] Figure 3 is a partial vertical perspective view (rear side view) of the range hood according to an embodiment of the present utility model cut along the front-rear direction;

[0026] Figure 4 is a partial vertical perspective view (front side view) of the range hood according to an embodiment of the present utility model cut along the front-rear direction;

[0027] Figure 5 is Figure 4 a structural view after omitting the reinforcing plate in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model. However, the use of these terms here is only for the convenience of description and is determined based on the example orientations shown in the drawings. Since the embodiments disclosed in the present utility model can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity.

[0030] Figures 1 - 5 Fig. 1 shows a preferred embodiment of the range hood of the present utility model. The range hood includes a housing 10 and a blower system 20 disposed within the housing 10. The housing 10 generally includes a blower frame 11 and a smoke collecting hood 12 disposed at the bottom of the blower frame 11. The inner cavity of the blower frame 11 communicates with the inner cavity of the smoke collecting hood 12. An air inlet is formed at the front side of the smoke collecting hood 12, and external flue gas can enter the smoke collecting hood 12 through the air inlet. The blower system 20 mostly adopts a centrifugal blower, which is disposed within the blower frame 11. When the centrifugal blower operates, a negative pressure is generated, and external cooking fumes can be sucked into the smoke collecting hood 12 through the air inlet. An oil screen 51 is also disposed at the air inlet of the smoke collecting hood 12 for filtering cooking fumes. An oil cup 21 is disposed at the bottom of the smoke collecting hood 12. The oil cup 21 is in a long strip shape extending left and right for receiving the oil stains flowing down from the smoke collecting hood 12. A smoke baffle 52 that can deflect forward and backward relative to the smoke collecting hood 12 is further disposed at the front of the smoke collecting hood 12. The smoke baffle 52 is connected to the main body of the smoke collecting hood 12 through a hinge movement mechanism, and specifically can deflect forward to open the above-mentioned air inlet and deflect backward to block and close the above-mentioned air inlet. The hinge movement mechanism for driving the deflection of the smoke baffle can adopt a conventional hinge movement mechanism in the prior art, which will not be elaborated herein.

[0031] The smoke collecting hood 12 includes a rear side plate 121 extending vertically, a bottom plate 122 extending forward from the bottom of the rear side plate 121, and a front side plate 123 inclined backward from top to bottom. The bottom of the front side plate 123 is connected to the front side of the bottom plate 122. The oil cup 21 is installed below the bottom plate 122. In order to facilitate the collection of the oil liquid flowing down from the rear side plate 121, a vertically penetrating oil leakage hole 1220 is also formed in the area of the bottom plate 122 corresponding to the upper part of the oil cup 21.

[0032] A oil guiding plate 40 and a reinforcing plate 30 are further disposed within the smoke collecting hood 12. The oil guiding plate 40 is located below the blower system 20, slopes downward from front to back, and its rear side is connected to the rear side plate 121 of the smoke collecting hood 12 for guiding the oil liquid dripping from the blower system 20 to the rear side plate 121 so that the oil liquid flows downward along the rear side plate 121 into the oil cup 21 at the bottom of the smoke collecting hood 12. In order to reduce the adverse impact of the setting of the oil guiding plate 40 on the ventilation air volume, a strip-shaped ventilation hole 41 is formed in the oil guiding plate 40 along the front-back direction, and the outer peripheral edge of the strip-shaped ventilation hole 41 is folded upward to form an annular oil blocking edge 410.

[0033] The reinforcing plate 30 is disposed adjacent to the bottom plate 122 of the smoke hood 12, and is used to provide support for the rear side plate 121, so as to ensure the strength of the rear side plate 121 and avoid deformation during transportation and handling. Specifically, the reinforcing plate 30 is tilted upward from front to back, and the rear side edge of the reinforcing plate 30 has a folded edge 31 that is folded downward, and the folded edge 31 abuts against the rear side plate 121 of the smoke hood 12, and is connected by a fastener 35, and the front side edge of the reinforcing plate 30 has a bent portion 32 that extends downward and then folds backward, and the bent portion 32 abuts against the bottom plate 122, wherein the bottom plate 122 has a limit stop 1221 extending upward at a position corresponding to the front side of the reinforcing plate 30, and the limit stop 1221 preferably adopts a flange that is folded backward and upward from the main body of the bottom plate 122, and the flange and the main body of the bottom plate 122 form a limit step, and the bent portion 32 of the reinforcing plate 30 abuts against the above limit step.

[0034] The rear side plate 121 has a boss 1211 protruding toward the inside of the housing 10, and the folded edge 31 on the rear side of the reinforcing plate 30 is connected to the top of the boss 1211 and connected through a fastener 35. In order to further improve the strength of the rear side plate 121 of the housing 10, the inner side surface of the rear side plate 121 has a press profile 1210 recessed toward the outside of the housing 10, and the boss 1211 is arranged on the bottom wall of the press profile 1210. The press profile 1210 is a long strip-shaped press profile 1210 extending in the left-right direction, and correspondingly, there are at least two bosses 1211 arranged at intervals along the length direction of the press profile 1210. In some embodiments, the fastener 35 is a screw, and the boss 1211 and the folded edge 31 of the reinforcing plate 30 are correspondingly provided with connection holes for the screws to pass through. When the reinforcing plate 30 is connected to the boss 1211, there is a gap 22 between the reinforcing plate 30 and the main body of the rear side plate 121 for the oil to flow through. The flow path of the oil is shown in FIG. Figure 3 Indicated by the solid arrow.

[0035] Continue to see Figure 3 In order to avoid contact between the rear side panel 121 (especially the top and bottom sides of the rear side panel 121) and the folded edge 31 as much as possible, the upper and lower dimension range of the profile 1210 should be larger than the upper and lower dimensions of the folded edge 31 of the reinforcing plate 30. Specifically, after the reinforcing plate 30 is installed in place, the top side of the profile 1210 is higher than the top of the folded edge 31, and the bottom side of the profile 1210 is lower than the bottom of the folded edge 31.

[0036] Combination Figure 4 and Figure 5, in a preferred embodiment, the rear side plate 121 further has a first limiting convex bump 1212 and a second limiting convex bump 1213 that protrude forward and are arranged at intervals in the up and down directions. The upper and lower side edges of the folded edge 31 of the reinforcing plate 30 are abutted between the first limiting convex bump 1212 and the second limiting convex bump 1213. That is, the upper side edge of the folded edge 31 abuts against the lower side of the first limiting convex bump 1212, and the lower side edge of the folded edge 31 abuts against the upper side of the second limiting convex bump 1213. During the initial installation process of the reinforcing plate 30, due to the limiting of the first limiting convex bump 1212 and the second limiting convex bump 1213 in the up and down directions, the connection holes on the folded edge 31 of the reinforcing plate 30 can be automatically centered (or centered after slightly adjusting left and right) with the connection holes on the boss 1211 of the rear side plate 121, improving the assembly efficiency of the reinforcing plate 30 of the range hood.

[0037] By providing a boss 1211 protruding into the housing 10 on the rear side plate 121 of the housing 10, the reinforcing plate 30 is connected to the top of the boss 1211 and connected by a fastener 35. Thus, in the state where the reinforcing plate 30 is connected to the boss 1211 in place, a gap 22 through which the oil fluid can flow is formed between the reinforcing plate 30 and the main body of the rear side plate 121, avoiding or reducing the flow of the oil fluid through the reinforcing plate 30. This not only effectively shortens the entire oil path of the range hood, but also correspondingly reduces the adhesion of oil and dirt to the reinforcing plate 30, eliminating the need for frequent cleaning of the reinforcing plate 30, reducing the cleaning workload of the user, and avoiding the problem of the escape of cooking fume odor caused by the residual oil and dirt on the reinforcing plate 30.

Claims

1. A range hood, comprising: The housing (10) comprises a rear side plate (121) extending vertically; A reinforcing plate (30) is disposed in the housing (10) and connected to a rear side plate (121) of the housing (10); The invention is characterized in that: the rear side plate (121) has a boss (1211) protruding toward the inside of the housing (10), the reinforcing plate (30) is connected to the top of the boss (1211) and is connected via a fastener (35), and when the reinforcing plate (30) and the boss (1211) are connected in place, a gap (22) is provided between the reinforcing plate (30) and the main body of the rear side plate (121) for oil to flow through.

2. The range hood according to claim 1, characterized in that: The inner side surface of the rear side plate (121) is provided with a protrusion (1210) which is recessed toward the outside of the housing (10), and the boss (1211) is arranged on the bottom wall of the protrusion (1210).

3. The range hood according to claim 2, characterized in that: The rear side edge of the reinforcing plate (30) has a folded edge (31) folded downward, and the folded edge (31) is in contact with the top of the boss (1211) and is connected via the fastener (35).

4. The range hood according to claim 3, characterized in that: The fastener (35) is a screw.

5. The range hood according to claim 3, characterized in that: The top side edge of the press profile (1210) is higher than the top of the folded edge (31), and the bottom side edge of the press profile (1210) is lower than the bottom of the folded edge (31).

6. The range hood according to claim 3, characterized in that: The press profile (1210) is a long strip-shaped press profile (1210) extending in the left-right direction, and there are at least two bosses (1211) arranged at intervals along the length direction of the press profile (1210).

7. The range hood according to claim 3, characterized in that: The rear side plate (121) also has a first limiting convex hump (1212) and a second limiting convex hump (1213) which protrude forward and are arranged at intervals in the upper and lower directions, and the upper and lower side edges of the folded edge (31) of the reinforcing plate (30) are respectively abutted against the first limiting convex hump (1212) and the second limiting convex hump (1213).

8. The range hood according to any one of claims 1 to 7, characterized in that: The housing (10) comprises a bottom plate (122) connected to the rear side plate (121); the reinforcing plate (30) is inclined upward from front to back; and the bottom plate (122) has a limit stop (1221) extending upward and abutting against the front side of the reinforcing plate (30) at a position corresponding to the front side of the reinforcing plate (30).

9. The range hood according to claim 8, characterized in that: It also includes an oil cup (21) arranged at the bottom of the housing (10), and an oil leakage hole (1220) penetrating from top to bottom is opened on the bottom plate (122) of the housing (10) at a position corresponding to the area above the oil cup (21).

10. The range hood according to any one of claims 1 to 7, characterized in that Also includes: A fan system (20) is disposed in the casing (10); An oil guide plate (40) is located below the fan system (20) and is used to receive oil dripping from the fan system (20). The oil guide plate (40) is tilted downward from front to back as a whole, and its rear side is connected to the rear side plate (121) of the casing (10).

11. The range hood according to claim 10, characterized in that: The oil guide plate (40) is provided with a strip-shaped ventilation hole (41) opened in the front-rear direction, and the outer periphery of the strip-shaped ventilation hole (41) is folded upward and extended to form an annular oil retaining edge (410).

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