A table top extractor hood

Abstract

The application provides a desktop range hood, comprising a casing; a partition plate arranged in the casing and used for separating an inner cavity of the casing into an air inlet cavity and an air outlet cavity; a communication hole arranged on the partition plate and used for communicating the air inlet cavity and the air outlet cavity; an air inlet arranged on a side wall of the casing and communicated to the air inlet cavity; an air outlet arranged on the side wall of the casing and communicated to the air outlet cavity; an annular air port arranged through the upper part of the casing, the annular air port is not communicated to the air inlet cavity and the air outlet cavity, and at least part of the air outlet is arranged along the extension direction of the annular air port; a driving member arranged at the communication hole and used for driving oil fume to enter the casing from the air inlet and to be discharged from the casing; and a cooling and filtering member arranged in the casing and located on the flow path of the oil fume in the casing. The desktop range hood has high portability, good smoke suction effect and can effectively filter out oil fume in air.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a table top range hood. BACKGROUND

[0002] In the process of making food at the table, such as hot pot or barbecue, a large amount of steam and smoke, i.e. oil fume, will be generated, which will spread to the diners and adhere to their clothes, leaving a strong smell of oil fume on the clothes and greatly affecting the dining experience of the diners.

[0003] Traditional range hoods are too large to be applied to the above-mentioned dining scenarios, and the method of blowing away oil fume by a fan can only alleviate the problem of oil fume adhering to the clothes of diners to a certain extent, but the blown-away oil fume will adhere to the surface of walls or other objects in the room, which is difficult to clean later. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application aims to provide a table top range hood which is highly portable, has good smoke suction effect and can effectively filter out oil fume in the air.

[0005] The embodiments of the present application are implemented by the following technical solutions:

[0006] A table top range hood comprises a casing, a partition plate arranged in the casing and used to divide the inner cavity of the casing into an air inlet cavity and an air outlet cavity, a communication hole arranged in the partition plate and used to communicate the air inlet cavity and the air outlet cavity, an air inlet arranged in the side wall of the casing and communicated to the air inlet cavity, an air outlet arranged in the side wall of the casing and communicated to the air outlet cavity, an annular air port arranged through the upper part of the casing, the annular air port not being communicated to the air inlet cavity and the air outlet cavity, and at least part of the air outlet being arranged along the extension direction of the annular air port, a driving member arranged at the communication hole and used to drive oil fume to enter the casing from the air inlet and to be discharged from the casing through the air outlet, and a cooling and filtering member arranged in the casing and located on the flow path of oil fume in the casing.

[0007] According to a preferred embodiment, the air inlet cavity and the air outlet cavity constitute an oil fume flow channel, the area of the oil fume flow channel increases along the flow direction of oil fume in the air inlet cavity, and the area of the oil fume flow channel decreases along the flow direction of oil fume in the air outlet cavity.

[0008] According to a preferred embodiment, the cooling and filtering member comprises a first filtering part, a cooling part and a second filtering part, the first filtering part is arranged close to the side of the air inlet, the second filtering part is arranged close to the side of the air outlet, and the cooling part is arranged close to the bottom of the casing.

[0009] According to a preferred embodiment, the cooling part comprises a water tank, which is arranged in the exhaust cavity.

[0010] According to a preferred embodiment, the side wall of the cabinet is provided with a receiving opening for accommodating the water tank and a jack for accommodating a second filter part, which is detachably inserted into the jack and extends into the water tank.

[0011] According to a preferred embodiment, the cabinet comprises a first housing and a second housing connected to each other; the partition plate is arranged between the first housing and the second housing; the partition plate and the inner wall of the first housing constitute the air inlet cavity, and the air inlet is arranged on the side wall of the first housing; the partition plate and the inner wall of the second housing constitute the air exhaust cavity, and the air outlet is arranged on the side wall of the second housing.

[0012] According to a preferred embodiment, the first housing comprises a first bottom structure and a first top structure connected to each other, and the second housing comprises a second bottom structure and a second top structure connected to each other; the annular air port is arranged at the first top structure and the second top structure; the driving member is arranged at the first bottom structure and the second bottom structure.

[0013] According to a preferred embodiment, the driving member is a centrifugal fan, and the impeller of the centrifugal fan is coaxially arranged at the outlet end of the communication hole.

[0014] According to a preferred embodiment, the exhaust cavity is provided with a baffle for dividing the bottom space of the exhaust cavity into a dry area and a wet area; the driving member is arranged in the dry area, and the cooling part is arranged in the wet area.

[0015] According to a preferred embodiment, the rotation axis of the impeller is arranged obliquely relative to the horizontal plane.

[0016] The technical scheme of the embodiment of the present application has at least the following advantages and beneficial effects:

[0017] (1) The table top range hood provided by the present application has small volume and high portability, and can be applied to different oil fume removal scenes. When in use, the oil fume and air mixture enters the cabinet through the air inlet, and the oil fume in the air can be filtered and stored under the action of the cooling and filtering part, so as to purify the air of the dining environment and effectively improve the dining experience of the diners.

[0018] (2)The ring-shaped air outlet cooperates with the air outlet, when the air flows out of the casing through the air outlet, the flow area thereof becomes smaller, that is, the flow velocity of the air filtered at the air outlet increases, at this time, negative pressure is generated around the ring-shaped air outlet, so that the air at the rear side and around the range hood is driven to flow forward around the casing and then flows backward through the ring-shaped air outlet to form air multiplication, thereby effectively improving the smoke suction effect of the table-top range hood. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0020] Figure 1 The explosion structure schematic diagram of the table-top range hood provided by the embodiments of the present application is shown in the figure.

[0021] Figure 2 The first three-dimensional structure schematic diagram of the table-top range hood provided by the embodiments of the present application is shown in the figure.

[0022] Figure 3 The second three-dimensional structure schematic diagram of the table-top range hood provided by the embodiments of the present application is shown in the figure.

[0023] Figure 4 The sectional structure schematic diagram of the table-top range hood provided by the embodiments of the present application is shown in the figure.

[0024] Figure 5 The Figure 4 The local enlarged schematic diagram of the structure at A in the figure.

[0025] Figure legend: 100, baffle; 101, air inlet; 102, first air outlet; 103, second air outlet; 11, first casing; 111, first bottom structure; 112, first top structure; 113, support plate; 1131, extension plate; 12, second casing; 121, second bottom structure; 122, second top structure; 123, jack; 13, bottom shell; 14, first filter part; 15, partition plate; 151, communication hole; 152, hem; 16, centrifugal fan; 161, impeller; 162, main machine; 17, second filter part; 18, water tank; 19, ring-shaped air outlet; I, air inlet cavity; II, air outlet cavity. DETAILED DESCRIPTION

[0026] In order to better understand and implement, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application.

[0027] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0029] Please refer to Figures 1 to 5 A desktop range hood, comprising a casing, a partition plate 15, a communication hole 151, an air inlet 101, an air outlet, an annular air inlet 19, a driving member and a cooling filter. Specifically, the partition plate 15 is arranged in the casing to divide the casing into an air inlet cavity I and an air outlet cavity II; the communication hole 151 is arranged on the partition plate 15 to communicate the air inlet cavity I and the air outlet cavity II; the air inlet 101 is arranged on the side wall of the casing and communicates with the air inlet cavity I; the air outlet is arranged on the side wall of the casing and communicates with the air outlet cavity II; the annular air inlet 19 is arranged through the upper part of the casing, and the annular air inlet 19 does not communicate with the air inlet cavity I and the air outlet cavity II, and at least part of the air outlet is arranged along the extension direction of the annular air inlet 19; the driving member is arranged at the communication hole 151 to drive the oil fume to enter the casing from the air inlet 101 and to be discharged from the casing; the cooling filter is arranged in the casing and is located on the flow path of the oil fume in the casing. The cooling filter here is used to cool and filter the oil stains in the oil fume and air mixture entering the interior of the casing from the air inlet 101.

[0030] In use, the desktop range hood is placed on the dining table close to the oil fume generating place, the driving member is started, the oil fume and air mixture enters the casing through the air inlet 101, and as the oil fume and air mixture continuously flows in the casing, the cooling filter can filter and store the oil stains in the oil fume and air mixture in the casing, and then the filtered air is discharged from the casing through the air outlet. The desktop range hood has small volume and high portability, and can be applied to different oil fume removing scenes. It should be noted that, as shown in Figure 4 the air flow direction of the desktop range hood when working is overall from front to back, that is, in use, the desktop range hood is placed on the dining table with the air inlet 101 facing the oil fume generating place, and the air outlet is arranged on the side wall of the casing away from the oil fume generating place. Figure 4When the air filtered passes through the air outlet to flow out of the casing, the flow channel area becomes smaller, that is, the flow velocity of the air filtered at the air outlet increases, at this time, a negative pressure is generated around the annular air outlet 19, so that the air at the rear side of the range hood and around the range hood is driven to flow forward around the casing and then flows backward through the annular air outlet 19 to form air multiplication, thereby improving the smoke suction effect of the range hood.

[0031] Further, the air inlet cavity I and the air outlet cavity II constitute an oil fume flow channel; the area of the oil fume flow channel gradually increases along the flow direction of the oil fume in the air inlet cavity I; and the area of the oil fume flow channel gradually decreases along the flow direction of the oil fume in the air outlet cavity II. In this way, the oil fume entering the air inlet cavity I through the air inlet 101 slows down gradually, which is beneficial to the condensation of part of the oil dirt into beads in this process, and the oil dirt is accelerated by the driving member at the communication hole 151; and the gradually decreasing area of the oil fume flow channel in the air outlet cavity II enables the oil dirt accelerated by the driving member to impact and adhere to the inner wall of the air outlet cavity II, thereby facilitating the separation of the oil dirt in the air. At the same time, the gradually decreasing area of the flow channel of the air outlet cavity II along the flow direction of the oil fume enables the air to be accelerated in the flow channel of the air outlet cavity II to the air outlet, so that a high-speed airflow is formed at the air outlet to cooperate with the annular air outlet 19 to achieve air multiplication and improve the smoke suction effect of the range hood.

[0032] In this embodiment, the cooling and filtering member includes a first filtering part 14, a cooling part and a second filtering part 17; the first filtering part 14 is arranged close to the air inlet 101; the second filtering part 17 is arranged close to the air outlet; and the cooling part is arranged close to the bottom of the casing. Specifically, the cooling part includes a water tank 18, and the water tank 18 is located in the air outlet cavity II. Alternatively, the first filtering part 14 and the second filtering part 17 can both be activated carbon filter screens. In use, the oil fume enters the air inlet cavity I through the air inlet 101 and is preliminarily filtered by the first filtering part 14, then is cooled by the cooling part, and quickly condenses into beads and adheres to the inner wall of the casing or other structural members in the casing, which further achieves the purpose of filtering the oil fume in the air; finally, the air in the casing after secondary oil fume filtration is filtered again by the second filtering part 17 to achieve the purpose of fully removing the oil fume. In this embodiment, the water tank 18 is filled with cold water, which can cool the oil fume to make it quickly condense, and the oil dirt adhering to the internal structural members of the casing can be collected into the water tank 18 for easy cleaning.

[0033] Specifically, as shown in FIG. 1, the range hood 1 includes a casing 10, an air inlet 101, an air outlet 102, an annular air outlet 19, a driving member 20 and a filter screen 30. Figure 1 、 Figure 3 and Figure 4As shown, the air outlets include a first air outlet 102 and a second air outlet 103, the air outlet close to the annular air outlet 19 is the first air outlet 102, and the second air outlet 103 is arranged below the first air outlet 102. The side wall of the casing is provided with a receiving opening for accommodating the water tank 18 and a jack 123 for accommodating the second filter part 17, respectively. The second filter part 17 is detachably inserted into the jack 123 and extends into the water tank 18. In the longitudinal direction, the second air outlet 103 is between the jack 123 and the receiving opening. The second filter part 17 here plays a role of filtering oil stains and a role of a flow guide plate, and can guide the filtered oil stains (the part of the oil stains adhering to the second filter part 17) to the water tank 18, facilitating the user to clean the range hood. It should be noted that the oil fume driven by the driving member at the communication hole 151 first hits the second filter part 17 when entering the exhaust chamber II, i.e. the second filter part 17 is arranged opposite to the communication hole 151. In this embodiment, part of the air can pass through the second filter part 17 and be discharged from the casing through the second air outlet 103. Here, the second filter part 17 can be conveniently and quickly disassembled through the jack 123, so that the user can clean it at irregular intervals to ensure the filtering effect. At the same time, the water tank 18 can also be quickly disassembled and cleaned.

[0034] Of course, in other embodiments, the first filter part 14 and the second filter part 17 can also have other structures, such as conventional oil fume filter cartridges, etc., as long as they can filter the oil fume in the oil fume flow path, without specific limitation.

[0035] In this embodiment, the casing includes a first housing 11 and a second housing 12 which are buckled to each other; the partition plate 15 is between the first housing 11 and the second housing 12; the partition plate 15 and the inner wall of the first housing 11 constitute the air inlet chamber I, and the air inlet 101 is arranged on the side wall of the first housing 11; the partition plate 15 and the inner wall of the second housing 12 constitute the exhaust chamber II, and the air outlet is arranged on the side wall of the second housing 12. In this embodiment, the first filter part 14 is clamped between the first housing 11 and the partition plate 15. The buckled structure of the first housing 11 and the second housing 12 makes the range hood convenient to disassemble, so that the user can disassemble it regularly to clean the oil stains inside the casing. At the same time, the oil fume flow path formed by the air inlet chamber I and the exhaust chamber II here extends in the longitudinal direction, which can reduce the floor area of the range hood while ensuring the length of the oil fume flow path, and is convenient to use.

[0036] Specifically, the first shell 11 comprises a first bottom structure 111 and a first top structure 112 connected with each other, and the second shell 12 comprises a second bottom structure 121 and a second top structure 122 connected with each other; the annular air inlet 19 is located at the first top structure 112 and the second top structure 122; the driving member is located at the first bottom structure 111 and the second bottom structure 121. The first top structure 112 and the first bottom structure 111 are integrally formed, and the second top structure 122 and the second bottom structure 121 are integrally formed. The annular air inlet 19 is a shaped hole of the first shell 11 and the second shell 12. The structure design of the shaped hole, i.e. the annular air inlet 19, makes the flow passage area inside the machine shell change from small to large from top to bottom in the longitudinal direction, so as to meet the flow passage design of the air inlet cavity I region and the air outlet cavity II region, and at the same time, the air outlet cavity II region can cooperate with the air outlet to form air multiplication, which has strong practicability.

[0037] In the embodiment, the driving member is a centrifugal fan 16, and an impeller 161 of the centrifugal fan 16 is coaxially arranged at an outlet end of the communication hole 151. Specifically, a support plate 113 is arranged on an inner wall of the first shell, and an end portion of the support plate 113 is provided with an extension plate 1131 which can extend to an upper side of the water tank 18. Specifically, as shown in Figs. 1 and 2, the centrifugal fan 16 is arranged in the air outlet cavity II region. Figure 1 and Figure 4 As shown in Figs. 1 and 2, a baffle 100 is arranged in the air outlet cavity II region, which divides the bottom space of the air outlet cavity II into a dry region and a wet region; the driving member is arranged in the dry region, and the cooling part is arranged in the wet region. In the embodiment, the main machine 162 of the centrifugal fan 16 is mounted on the support plate 113, and a rotating shaft of the impeller 161 is arranged obliquely relative to the horizontal plane, i.e. the rotating shaft of the main machine 162 is arranged obliquely relative to the horizontal plane. The communication hole 151 is provided with a curled edge 152 on the side facing the air outlet cavity II, and the curled edge 152 is embedded in the air inlet 101 of the impeller 161. The curled edge 152 is beneficial to reducing the resistance at the communication hole 151 and facilitating air flow. The obliquely arranged centrifugal fan 16 is beneficial to forming a wind reflection angle with the inner wall of the machine shell, which can effectively reduce the wind resistance and increase the wind speed.

[0038] In the embodiment, the insertion hole 123 and the receiving opening are both arranged on the second shell 12.

[0039] The machine shell further comprises a bottom shell 13, and the first shell 11 and the second shell 12 are inserted into the bottom shell 13 after being buckled. In other embodiments, the bottom of the first shell 11 and the second shell 12 is closed, and the machine shell is only enclosed by the first shell 11 and the second shell 12.

[0040] The technical means disclosed in the present application is not limited to the technical means disclosed in the above embodiments, but also includes technical solutions composed of any combination of the above technical features. It should be noted that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which are also considered within the scope of protection of the present application.

Claims

1. A table top range hood characterized by, The utility model relates to a kind of oil fume filter, including: Casing; Partition (15) is arranged in the casing, for the air inlet cavity (I) and exhaust cavity (II) of casing inner chamber is separated; Communication hole (151) is arranged in the partition (15), for the air inlet cavity (I) and exhaust cavity (II) are communicated; Air inlet (101) is arranged in the side wall of the casing and is communicated to the air inlet cavity (I); Air outlet is arranged in the side wall of the casing and is communicated to the exhaust cavity (II); Annular air port (19) is arranged in the upper portion of the casing, and the annular air port (19) is not communicated with the air inlet cavity (I) and the exhaust cavity (II), and at least part of the air outlet is spaced along the extension direction of the annular air port (19); Driving member is arranged at the communication hole (151), for driving oil fume from the air inlet (101) into casing, and from the air outlet discharges casing; And Cooling filter element is arranged in the casing, in the flow path of oil fume in casing; The cooling filter element includes first filter part (14), cooling part and second filter part (17), the first filter part (14) is arranged close to the side of air inlet (101), the second filter part (17) is arranged close to the side of air outlet, and the cooling part is arranged close to the bottom of the casing; The air outlet includes first air outlet (102) and second air outlet (103), and the air outlet close to the annular air port (19) is the first air outlet (102), and the second air outlet (103) is arranged in the lower side of the first air outlet (102).

2. The under-counter range hood according to claim 1, characterized in that The air inlet cavity (I) and the exhaust cavity (II) constitute oil fume flow channel; The area of the oil fume flow channel is changed from small to large along the flow direction of oil fume in the air inlet cavity (I) region; The area of the oil fume flow channel is changed from large to small along the flow direction of oil fume in the exhaust cavity (II) region.

3. The under-counter range hood according to claim 1, characterized in that The cooling part includes water tank (18), and the water tank (18) is in the exhaust cavity (II).

4. The under-counter range hood according to claim 3, characterized in that The side wall of the casing is respectively provided with receiving opening for accommodating the water tank (18) and jack (123) for accommodating second filter part (17), and the second filter part (17) is detachably inserted into the jack (123) and extends into the water tank (18).

5. The under-counter range hood according to claim 1, characterized in that The casing includes first shell (11) and second shell (12) connected with each other; The partition (15) is between the first shell (11) and the second shell (12); The partition (15) and the inner wall of the first shell (11) constitute the air inlet cavity (I), and the air inlet (101) is arranged in the side wall of the first shell (11); The partition (15) and the inner wall of the second shell (12) constitute the exhaust cavity (II), and the air outlet is arranged in the side wall of the second shell (12).

6. The under-counter range hood according to claim 5, characterized in that The first shell (11) includes first bottom structure (111) and first top structure (112) connected with each other, and the second shell (12) includes second bottom structure (121) and second top structure (122) connected with each other. The annular air outlet (19) is located at the first top structure (112) and the second top structure (122); The driving member is located at the first bottom structure (111) and the second bottom structure (121).

7. The under-counter range hood according to claim 5, characterized in that The driving component is a centrifugal fan (16), and the impeller (161) of the centrifugal fan (16) is coaxially arranged at the outlet end of the communicating hole (151).

8. The under cabinet range hood of claim 1, wherein, A baffle (100) is provided in the exhaust chamber (II) for dividing the bottom space of the exhaust chamber (II) into a dry area and a wet area; The driving member is assembled in the dry area, and the cooling part is arranged in the wet area.

9. The under-counter range hood according to claim 7, characterized in that The rotating shaft of the impeller (161) is arranged to be inclined relative to the horizontal plane.

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