Range hood

Abstract

An extractor hood comprises a machine shell and a panel arranged on the front side of the machine shell, an exhaust fume collecting hood is arranged in the machine shell, an exhaust fume collecting cavity is defined by the exhaust fume collecting hood and the panel, a fixed supporting frame located below the exhaust fume collecting hood is further arranged in the machine shell, and an installation cavity is defined by the fixed supporting frame and the panel. And the water receiving tank and the oil collecting tank are respectively arranged in the mounting cavity. Compared with the prior art, the technical scheme provided by the utility model has the advantages that the smoke collecting effect is good, the oil stain and condensate water receiving amount is large, the oil stain can be conveniently guided to fall to prevent from overflowing the oil receiving groove or dropping to other places, the structure is compact and reasonable, and the material cost is low.

Description

A type of range hood Technical Field

[0001] This utility model relates to a range hood. Background Technology

[0002] With today's fast-paced lifestyle, range hoods with built-in cleaning functions have become a key consideration for consumers, solving the problem of difficult oil stain cleaning. However, most traditional range hoods on the market have exposed oil collection trays, resulting in many cleaning dead spots, high maintenance costs, poor aesthetics, and high sheet metal molding costs. Alternatively, they place the water and oil collection trays at the bottom of the smoke inlet, affecting the size of the inlet and resulting in very small capacity for the water and oil collection trays. For example, the Chinese utility model patent with authorization announcement number CN208703983U, entitled "A Smart Range Hood Easy to Clean", discloses: a range hood body (1) with a cavity, a fan, impeller, sealing ring, and oil screen (2) installed in sequence in the cavity of the range hood body (1), a circuit board set inside the range hood body (1) and connected to the fan, a front panel (3) set on the range hood body (1) and openable, a control button (4) set on the surface of the front panel (3) and connected to the circuit board, an oil collection tank (5) and a washing tank (6) arranged side by side at the lower end of the range hood body (1), a booster pump connected to the washing tank (6) at one end through a pipe, and multiple nozzles fixed on the inner wall of the cavity of the range hood body (1) and connected to the other end of the booster pump and facing the impeller; wherein, the bottom of the oil screen (2) is connected to the oil collection tank (5), and the booster pump and the fan are both connected to the circuit board and the control button (4). In the technical solution described in this utility model, the oil collection tank (5) and the washing tank (6) are arranged side by side at the lower end of the range hood body (1), and the exposed parts have problems such as poor aesthetics.

[0003] In response to the above problems, many experts and engineers have tried to make some improvements, including covering up the water tank and oil collection tank to improve aesthetics.

[0004] For example, Chinese invention application CN119508861A, entitled "Rainbow Hood," discloses a smoke-collecting module comprising a body and a liquid storage module. The liquid storage module includes a frame connected to the body, the frame having a first cavity and a second cavity; an oil collection box disposed in the first cavity; a water box disposed in the second cavity; a hinge disposed in the frame; and a cover panel connected to the hinge to conceal and expose the oil collection box and the water box. The outer edge of the frame is connected to the body, and the cover panel conceals and exposes the outer edge of the frame. The body has a receiving cavity and an oil-blocking groove, the frame is embedded in the receiving cavity, the oil-blocking groove surrounds the upper part of the receiving cavity, and the oil-blocking groove has an oil leakage hole located above the oil collection box. Furthermore, the specification also discloses that the main body includes a baffle plate 2250, which is positioned between the front of the rear panel and the side panels 2220 on both sides. The baffle plate 2250 has an air inlet 2251. The top panel 2210, side panels 2220, rear panel, and baffle plate 2250 enclose a large internal space, into which fumes enter. The technical solution described in this invention application only uses the baffle plate 2250 in conjunction with the side panels of the main body to form the internal space, resulting in poor fume collection. Moreover, it lacks a structure to guide oil and condensate downwards, easily causing oil and condensate to drip onto locations other than the oil baffle groove, damaging components.

[0005] For example, Chinese utility model patent CN220793226U, entitled "A Range Hood," discloses: a range hood comprising: a smoke collection hood (1); a panel (2) installed on the front side of the smoke collection hood (1) and enclosing the smoke collection hood (1) to form a smoke collection cavity, wherein the panel has an air inlet (25) communicating with the smoke collection cavity; and an inner cover (6) disposed within the smoke collection cavity, wherein the front side of the inner cover (6) has an air inlet (25) communicating with the smoke collection cavity. The air inlet (25) is connected to the smoke inlet, and the upper side has a smoke outlet connected to the air outlet of the range hood. The lower side has an oil stain outlet (61) and a water inlet, and the water inlet has a water inlet nozzle (62). The water box (4) and the oil box (5) are both installed on the lower side of the inner cover (6) and located in the smoke collection chamber. The water outlet of the water box (4) is connected to the water inlet nozzle (62), and the oil box (5) is connected to the oil stain outlet (61). The technical solution of this utility model has a complex structure and a high degree of functional integration of the inner cover (6), which is not conducive to disassembly and replacement; there are too many mating structures on the panel, resulting in poor panel flexibility and heavy load-bearing capacity; and the whole machine lacks a top-down oil stain guiding structure.

[0006] Finally, the Chinese utility model patent with authorization announcement number CN222503972U, entitled "An oil collection structure for a range hood", discloses: including a bottom shell (1), the front end of the bottom shell (1) is hollow to form an oil collection cavity (2), the front end of the oil collection cavity (2) is covered by a panel (3) to seal it, the panel (3) has a smoke inlet, and the smoke inlet is covered by a smoke guide plate (4); the oil collection cavity (2) is equipped with oil guide plates (5) arranged in a high-on-the-sides and low-on-the-middle pattern, the lowest point of the oil guide plate (5) has an oil leakage hole (6) that communicates with an oil cup groove (7) located below it, and an oil collection groove (8) is detachably installed in the oil cup groove (7). Although the technical solution described in this utility model uses the oil guide plate (5) with high sides and low middle to receive the oil and condensate dripping from top to bottom, this V-shaped structure design of the oil guide plate (5) will inevitably lead to a reduction in the amount of oil stored, and the oil will easily overflow from the oil guide plate (5). Summary of the Invention

[0007] To address the shortcomings of existing technologies, this utility model provides a range hood with good smoke collection effect, large capacity for oil and condensate water collection, easy guidance of oil to prevent overflow of the oil collection tank or dripping to other places, compact and reasonable structure, and low material cost.

[0008] The main technical solution adopted by this utility model is as follows:

[0009] A range hood includes a housing and a panel located on the front side of the housing. A smoke collection hood is provided inside the housing, and the smoke collection hood and the panel enclose a smoke collection cavity. A fixed support frame located below the smoke collection hood is also provided inside the housing, and the fixed support frame and the panel enclose an installation cavity. A water tank and an oil tank are respectively installed in the installation cavity.

[0010] The casing is also provided with an oil receiving groove, and the bottom wall of the oil receiving groove is provided with a guide hole. The oil receiving groove is connected to the oil collection tank through the guide hole.

[0011] The oil receiving groove is a long strip horizontally arranged inside the machine housing. The cross-section of the oil receiving groove is a beveled rectangle, and the longitudinal section of the oil receiving groove is an inverted right trapezoid.

[0012] The housing is also equipped with a baffle plate, which is located on the rear side of the smoke collection hood. The baffle plate extends upward at an angle from near the oil receiving groove or extends upward by bending from near the oil receiving groove.

[0013] The guide vanes are arranged opposite each other in an axe shape, with the front edge of the guide vane at least partially connected to the smoke hood, and the top and rear edges of the guide vanes respectively connected to the housing.

[0014] It also includes a cleaning component and a fan component. One end of the cleaning component extends into the water tank, and the other end of the cleaning component cleans the fan component. The cleaning component includes a controller, which automatically selects the cleaning mode according to the liquid level in the water tank.

[0015] The cleaning assembly also includes a water suction connector, and the bottom wall of the oil receiving tank is provided with a water suction hole corresponding to the position of the water receiving tank. The water suction connector is located at the water suction hole.

[0016] The water-absorbing connector has a water-absorbing protrusion formed on at least one side of the periphery of the water-absorbing hole.

[0017] The fixed support frame forms a wedge-shaped receiving chamber, and the water receiving tank and the oil collecting tank are respectively installed in the receiving chamber. The top wall of the receiving chamber has a through hole.

[0018] The bottom walls of the water receiving tank and the oil collecting tank are inclined and abut against the bottom wall of the receiving chamber. The four edges of the water receiving tank and the oil collecting tank are chamfered. The front side plates of the water receiving tank and the oil collecting tank are respectively provided with hand grooves.

[0019] According to the technical solution described in this utility model, the following beneficial effects are achieved: the smoke collection hood and the panel form a smoke collection cavity, resulting in a more significant smoke collection effect; the fixed support frame is separately installed below the smoke collection hood, facilitating individual disassembly and replacement of the fixed support components; the oil receiving trough is elongated and horizontally arranged inside the casing, maximizing the absorption of dripping oil and condensate within the casing area, preventing it from dripping onto other components and causing damage; the cross-sectional and longitudinal shapes of the oil receiving trough are more conducive to matching the casing, improving space utilization; the guide plate is located on the rear side of the smoke collection hood, saving space and reducing material consumption; the guide plate not only guides oil and condensate from top to bottom into the oil receiving trough, but also enhances structural stability; the guide plates are arranged in an axe-like shape, better adapting to the shape of the smoke collection hood; the cleaning component automatically selects the cleaning mode based on the liquid level in the water tank, and can also determine whether it is suitable to continue cleaning based on the liquid level in the oil tank, resulting in a higher level of intelligence. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the range hood structure with the lower panel open.

[0021] Figure 2 is a schematic diagram of the range hood structure after removing the top and bottom panels from Figure 1.

[0022] Figure 3 is a schematic diagram of the decomposed structure in Figure 2.

[0023] Figure 4 is a schematic diagram of the structure in Figure 2 after removing the smoke hood, water tank, and oil tank.

[0024] Figure 5 is a schematic diagram showing the side positional relationship of the fixed support frame, oil receiving groove, and guide plate.

[0025] Figure 6 is a schematic diagram of an oil receiving tank with a water suction connector installed.

[0026] Figure 7 is a schematic diagram of the guide vane structure.

[0027] Figure 8 is a schematic diagram of the water absorption connector structure.

[0028] 1. Housing, 21. Upper panel, 22. Lower panel, 3. Smoke hood, 4. Fixed support frame, M. Water tank, N. Oil tank, 5. Oil trough, 50. Guide hole, 6. Guide plate, 7. Water suction connector, 71. Water suction boss. Detailed Implementation

[0029] The technical solution of this utility model will be further described below with reference to specific embodiments:

[0030] Referring to Figures 1-4, a range hood includes a housing 1 and a panel located on the front side of the housing 1. A smoke collection hood 3 is provided inside the housing 1, and the smoke collection hood 3 and the panel form a smoke collection cavity 30. A fixed support frame 4 located below the smoke collection hood 3 is also provided inside the housing 1, and the fixed support frame 4 and the panel form an installation cavity. A water tank M and an oil tank N are respectively installed in the installation cavity. Preferably, the panel includes an upper panel 21 and a lower panel 22. The smoke collection hood 3 and the upper panel 21 form the smoke collection cavity, and the fixed support frame 4 and the lower panel 22 form the installation cavity. In other embodiments, it is not excluded that a single panel can be used to replace both the upper and lower panels (for example, the panel is detachably connected to the housing, and the panel has a smoke inlet in the center corresponding to the position of the smoke collection hood). Preferably, the upper panel 21 is rotatably connected to the housing 1, forming a smoke inlet for the smoke collection chamber when the upper panel 21 is in the open state, thereby introducing oil fumes into the smoke collection chamber through the smoke inlet; or, the upper panel 21 is fixedly connected to the housing 1 and has a smoke inlet at the middle position of the upper panel 21, thereby introducing oil fumes into the smoke collection chamber through the smoke inlet. Preferably, the lower panel 22 is rotatably connected to the fixed support frame 4 or the housing 1; or, the lower panel 22 is detachably connected to the fixed support frame 4 or the housing 1, and the water tank M and the oil tank N are exposed only when the lower panel 22 is in the open state. Preferably, the smoke hood 3 adopts a convex cavity structure stretched from front to back, and the cross-section of the smoke hood 3 is M-shaped. Preferably, the longitudinal section of the housing 1 is an inverted triangle. In this application, the smoke hood and the panel form a smoke collection cavity, which makes the smoke collection effect of the range hood more significant. In this application, the fixed support frame is set separately below the smoke hood, which makes it easy to disassemble and replace the fixed support components individually, reducing maintenance costs.

[0031] Referring to Figures 3-6, the housing 1 is also provided with an oil receiving trough 5. A guide hole 50 is provided on the bottom wall of the oil receiving trough 5, and the oil receiving trough 5 is connected to the oil collection tank N through the guide hole 50. Preferably, the number of guide holes 50 is at least one. In this application, oil and condensate are collected together through the oil receiving trough and then discharged into the oil collection tank through the guide hole, serving a collection and transfer function.

[0032] Referring to Figures 3-6, the oil receiving groove 5 is a long, horizontal strip located inside the housing 1. The cross-section of the oil receiving groove 5 is a chamfered rectangle, and its longitudinal section is an inverted right-angled trapezoid. In this application, the use of a long, strip-shaped oil receiving groove maximizes the collection of flowing oil and condensate, preventing dripping onto other components. Preferably, the cross-section of the oil receiving groove 5 is a rectangle with its two apex angles near the rear cut off, thus better adapting to the recessed structure of the sides of the housing and reducing the area of ​​the housing against the wall. The inverted right-angled trapezoidal longitudinal section of the oil receiving groove 5 facilitates adaptation to the overall structure of the housing, resulting in a more rational layout and higher space utilization.

[0033] Referring to Figures 3-5 and 7, a guide plate 6 is also provided inside the housing 1. The guide plate 6 is located on the rear side of the fume hood 3. The guide plate 6 extends upward at an angle from near the oil receiving groove 5, or extends upward at a bend from near the oil receiving groove 5. In this application, the guide plate extending upward at an angle from near the oil receiving groove, or extending upward at a bend from near the oil receiving groove, can more efficiently guide oil and condensate into the oil receiving groove from top to bottom, preventing oil and condensate from splashing and damaging other components. Preferably, the guide plate 6 extends upward at a bend from near the oil receiving groove 5. This structural design is more suitable for adapting to the convex cavity structure of the fume hood, further improving the space utilization rate inside the housing. In this application, the guide plate is located on the rear side of the fume hood, which also saves space and reduces material consumption.

[0034] Referring to Figures 3-5 and 7, the guide plates 6 are arranged opposite each other in an axe shape. The front edge of the guide plate 6 is at least partially connected to the smoke hood 3, and the top edge and rear edge of the guide plate 6 are respectively connected to the housing 1. In this application, preferably, to further improve the connection stability, the front edge, top edge, and rear edge of the guide plate 6 are all formed with connecting flanges. The setting of connecting flanges not only enhances the connection firmness and improves the mechanical strength of the guide plate, but also some of the connecting flanges can define the flow channel to guide the oil or condensate to flow downward. More preferably, the bottom edge of the guide plate 6 is also formed with a buffer flange to buffer the oil or condensate falling along the guide plate 6 and prevent splashing.

[0035] Referring to Figures 1-3, the system also includes a cleaning component and a fan component. One end of the cleaning component extends into the water tank M, and the other end cleans the fan component. The cleaning component includes a controller, which automatically selects the cleaning mode based on the liquid level in the water tank M. Preferably, in this application, the fan component includes a fan frame and an impeller located within the fan frame. The other end of the cleaning component extends between the fan frame and the impeller to clean the oil accumulated on the impeller and the fan frame. Preferably, the cleaning assembly further includes a first liquid level sensor connected to the controller. The first liquid level sensor is located in the water tank M. The controller automatically selects and starts the cleaning mode based on the liquid level in the water tank M fed back by the first liquid level sensor, thereby preventing the motor from running dry due to a drop or even depletion of water. More preferably, the cleaning assembly further includes a second liquid level sensor connected to the controller. The second liquid level sensor is located in the oil collection tank N. The controller controls whether to stop cleaning based on the liquid level in the oil collection tank fed back by the second liquid level sensor. For example, when the controller determines that the current liquid level in the oil collection tank N exceeds the maximum liquid level limit of the oil collection tank N after accumulating the liquid level after cleaning, it determines to stop cleaning to prevent the oil collection tank N from overflowing. The range hood product using the above technical solution not only solves the problem of users' difficulty in cleaning oil stains, but also provides a product with a higher degree of intelligent cleaning, significantly enhancing its market competitiveness.

[0036] Referring to Figures 3 and 6, the cleaning assembly also includes a water suction connector 7, and the bottom wall of the oil receiving tank 5 is provided with a water suction hole corresponding to the position of the water receiving tank M. The water suction connector 7 is located at the water suction hole.

[0037] Referring to Figures 3, 6, and 8, the water suction connector 7 has a water suction protrusion 71 formed on at least one side of the periphery of the water suction hole. Preferably, in this application, the water suction protrusion 71 is formed at least on the periphery of the upward-facing side of the water suction hole to prevent oil and condensate flowing into the oil receiving tank 5 from overflowing the water suction connector and flowing back into the water receiving tank. In this application, the water suction protrusion can be formed by the structure of the water suction connector itself (for example, the water suction connector can adopt a pedestal-type structure surrounding the water suction nozzle, with the pedestal snapped into the water suction hole to form the water suction protrusion); or, the water suction protrusion can also be formed by a raised section of the plate wall located around the periphery of the water suction hole. In this application, preferably, the cleaning assembly also includes a conduit, which cooperates with the water suction connector 7 to supply water from the water tank M to the fan assembly. In this application, preferably, the conduit may pass through the water suction connector 7; or the conduit may be divided into multiple sections, with the end of one section fitted onto the water suction connector 7 on one side of the water suction hole, and the end of another section fitted onto the water suction connector 7 on the other side of the water suction hole.

[0038] Referring to Figures 3-5, the fixed support frame 4 forms a wedge-shaped receiving chamber 40. The water tank M and the oil collecting tank N are respectively installed inside the receiving chamber 40, and the top wall of the receiving chamber 40 has a through hole. In this application, the through hole is respectively matched with the absorption joint and the guide hole.

[0039] Referring to Figures 1-5, the bottom walls of the water receiving tank M and the oil collecting tank N are inclined and abut against the bottom wall of the receiving chamber 40. The edges of both the water receiving tank M and the oil collecting tank N are chamfered, and hand grooves are provided on the front side plates of both tanks. In this application, the inclined bottom walls facilitate stable contact with the bottom wall of the receiving chamber. Both the water receiving tank and the oil collecting tank are made of transparent PC material and marked with graduations, allowing users to visually judge the liquid level, especially the location of oil stains, and thus promptly empty the oil collecting tanks when they are full.

[0040] Although the specific embodiments of this utility model have been described above, those skilled in the art can make changes to it without departing from the spirit and principle of this utility model. The scope of protection of this utility model is defined by its claims and their equivalents.

Claims

1. A range hood, comprising a housing and a panel disposed on the front side of the housing, characterized in that: The housing is equipped with a smoke collection hood, which together with the panel forms a smoke collection cavity. The housing is also equipped with a fixed support frame located below the smoke collection hood, which together with the panel forms an installation cavity. The water tank and oil tank are respectively installed into the installation cavity.

2. The range hood according to claim 1, characterized in that: The housing is also provided with an oil receiving groove, and the bottom wall of the oil receiving groove is provided with a guide hole. The oil receiving groove is connected to the oil collection tank through the guide hole.

3. The range hood according to claim 2, characterized in that: The oil receiving groove is a long strip horizontally arranged inside the machine housing. The cross-section of the oil receiving groove is a beveled rectangle, and the longitudinal section of the oil receiving groove is an inverted right trapezoid.

4. The range hood according to claim 2 or 3, characterized in that: The housing is also provided with a baffle plate, which is located on the rear side of the smoke collection hood. The baffle plate extends upward at an angle from near the oil receiving groove or extends upward by bending from near the oil receiving groove.

5. The range hood according to claim 4, characterized in that: The guide vanes are arranged opposite each other in an axe shape. The front edge of the guide vane is at least partially connected to the smoke hood, and the top edge and rear edge of the guide vane are respectively connected to the housing.

6. The range hood according to claim 2, characterized in that: It also includes a cleaning component and a fan component. One end of the cleaning component extends into the water tank, and the other end of the cleaning component cleans the fan component. The cleaning component includes a controller, which automatically selects the cleaning mode according to the liquid level in the water tank.

7. The range hood according to claim 6, characterized in that: The cleaning assembly also includes a water suction connector, and the bottom wall of the oil receiving tank is provided with a water suction hole corresponding to the position of the water receiving tank, and the water suction connector is located at the water suction hole.

8. The range hood according to claim 7, characterized in that: The water-absorbing connector has a water-absorbing protrusion formed on at least one side of the periphery of the water-absorbing hole.

9. The range hood according to claim 1, characterized in that: The fixed support frame forms a wedge-shaped receiving chamber, and the water receiving tank and the oil collecting tank are respectively installed in the receiving chamber. The top wall of the receiving chamber has a through hole.

10. The range hood according to claim 9, characterized in that: The bottom walls of the water receiving tank and the oil collecting tank are inclined and abut against the bottom wall of the receiving chamber. The four edges of the water receiving tank and the oil collecting tank are chamfered. The front side plates of the water receiving tank and the oil collecting tank are respectively provided with hand grooves.

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