A table-top smoke machine

Abstract

The utility model relates to domestic appliance technical field especially, more particularly to a table type smoke machine. The table type smoke machine includes the casing, fan and filter component, and the casing has the air inlet, and the fan includes the volute with the air inlet, and the volute sets up in the casing, and the air inlet is linked together with the air inlet, and the filter component includes first filter piece and / or second filter piece, wherein, first filter piece sets up in the air inlet, and second filter piece sets up in the volute, by first filter piece and / or second filter piece are introduced to the inside of volute, and first filter piece and / or second filter piece do not need the space in the additional casing, thereby can reduce the size of table type smoke machine along the thickness direction, can make the volume of table type smoke machine smaller, effectively reduces the space that table type smoke machine occupies, can release more desktop space for the user, effectively improves space utilization.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a tabletop range hood. Background Technology

[0002] As an essential appliance for cooking on restaurant tables, tabletop range hoods play a crucial role in the air quality of the dining room. Existing tabletop range hoods typically include a casing, a pre-filter, a main filter, and a fan. The pre-filter, main filter, and fan are housed inside the casing and arranged sequentially along the thickness of the casing. The pre-filter and main filter are usually located at the front of the fan and require additional space, resulting in a relatively large tabletop range hood that occupies the already limited space on the dining table.

[0003] Therefore, there is an urgent need to design a new countertop range hood to improve the problem of its large size and large space occupation. Utility Model Content

[0004] The purpose of this utility model is to provide a tabletop range hood that is small in size and occupies little space.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A tabletop range hood, comprising:

[0007] The casing has an air inlet;

[0008] A fan includes a volute with an air inlet, the volute being disposed within a housing, the air inlet being connected to an air intake; and

[0009] The filter assembly includes a first filter element and / or a second filter element, wherein the first filter element is disposed at the air inlet and the second filter element is disposed inside the volute.

[0010] As an alternative, the second filter element includes at least two folds arranged circumferentially along the output shaft of the fan and connected sequentially.

[0011] As an alternative, the second filter element includes a first coating layer, an adsorption layer, and a second coating layer stacked in sequence.

[0012] As an optional solution, the tabletop range hood also includes an oil guiding structure. The second filter element and the oil guiding structure are arranged from top to bottom and along the extension direction of the fan's output shaft. The second filter element is ring-shaped, and the lower edge of the outer contour of the longitudinal section of the second filter element is inclined downward from the end away from the oil guiding structure to the end close to the oil guiding structure.

[0013] As an optional solution, the housing includes:

[0014] The housing, with the air inlet located on the housing; and

[0015] The middle shell is disposed inside the outer shell. The middle shell includes a support frame, which includes an open receiving cavity and a connecting port group. The second filter element is disposed in the receiving cavity. The air inlet, the open cavity, the connecting port group and the air inlet are connected in sequence.

[0016] As an alternative, the middle shell also includes:

[0017] A limiting component is provided at the opening, and the limiting component and the bottom plate of the support frame together restrict the position of the second filter element along the extension direction of the fan's output shaft.

[0018] As an optional solution, at least two connection groups are set, and the at least two connection groups are arranged at circumferential intervals along the support frame.

[0019] As an alternative, the fan also includes a motor, the output shaft of which extends along the thickness of the housing, and the first filter element is connected to the output shaft.

[0020] As an optional solution, the first filter element includes:

[0021] The first mounting section is connected to the output shaft;

[0022] The second mounting portion is annularly arranged and spaced apart from the outer periphery of the first mounting portion; and

[0023] At least two connecting parts are disposed between the first mounting part and the second mounting part and are fixedly connected to the first mounting part and the second mounting part respectively, and the at least two connecting parts are arranged at intervals along the circumference of the second mounting part.

[0024] As an optional solution, the first filter element can be detachably connected to the output shaft.

[0025] The beneficial effects of this utility model are:

[0026] The tabletop range hood provided by this utility model includes a housing, a fan, and a filter assembly. The housing has an air inlet, and the fan includes a volute with an air inlet, which is disposed inside the housing. The air inlet is connected to the air outlet. The filter assembly includes a first filter element and / or a second filter element, wherein the first filter element is disposed at the air inlet, and the second filter element is disposed inside the volute. By introducing the first filter element and / or the second filter element into the interior of the volute, the first filter element and / or the second filter element do not require additional space inside the housing, thereby reducing the dimension of the tabletop range hood along the thickness direction. This results in a smaller tabletop range hood, effectively reducing the space occupied by the range hood, freeing up more desktop space for users, and effectively improving space utilization. Attached Figure Description

[0027] Figure 1This is a structural schematic diagram of the tabletop range hood provided in Embodiment 1 of this utility model;

[0028] Figure 2 This is a partial structural schematic diagram of the tabletop range hood provided in Embodiment 1 of this utility model;

[0029] Figure 3 This is an exploded view of the tabletop range hood provided in Embodiment 1 of this utility model;

[0030] Figure 4 This is a cross-sectional view of the tabletop range hood provided in Embodiment 1 of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the second filter element provided in Embodiment 1 of this utility model;

[0032] Figure 6 This is a cross-sectional view of the second filter element provided in Embodiment 1 of this utility model;

[0033] Figure 7 This is a schematic diagram of the first structure of the first filter element provided in Embodiment 1 of this utility model;

[0034] Figure 8 This is a schematic diagram of the second structure of the first filter element provided in Embodiment 1 of this utility model;

[0035] Figure 9 This is a cross-sectional view of the tabletop range hood provided in Embodiment 2 of this utility model.

[0036] In the picture:

[0037] 100. Tabletop range hood;

[0038] 10. Housing; 11. Outer shell; 111. Air inlet; 112. Air outlet; 12. Middle shell; 121. Support frame; 1211. Receiving cavity; 12111. Opening; 1212. Connecting port assembly; 12121. Connecting port; 1213. Base plate; 122. Limiting component;

[0039] 20. Fan; 21. Volute; 211. Inlet; 212. Outlet; 22. Motor; 221. Output shaft; 2211. Step; 23. Impeller;

[0040] 30. Filter assembly; 31. First filter element; 311. First mounting part; 312. Second mounting part; 313. Connecting part; 32. Second filter element; 321. Folded part; 322. First covering layer; 323. Adsorption layer; 324. Second covering layer; 325. First connecting plate; 326. Second connecting plate;

[0041] 40. Oil guiding structure; 41. Oil leakage hole;

[0042] 50. Locking components;

[0043] 60. Shaft seals;

[0044] 70. Oil cup; 71. Oil cup opening. Detailed Implementation

[0045] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the drawings, not all of them.

[0046] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of the embodiments disclosed herein, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0049] Example 1

[0050] like Figure 1 and Figure 4 As shown, the tabletop range hood 100, as an essential appliance for cooking on the dining table, plays a crucial role in the air quality of the restaurant. Figure 1 As shown, the tabletop range hood 100 includes a housing 10 and a fan 20. The housing 10 has an air inlet 111 and an air outlet 112. The fan 20 is disposed inside the housing 10. When the fan 20 is working, external air enters the fan 20 through the air inlet 111. The external air is filtered inside the fan 20, and the filtered air then enters the environment through the air outlet 112. Specifically, as... Figure 1 , Figure 3 and Figure 4 As shown, the fan 20 includes a volute 21, a motor 22, and an impeller 23. The volute 21 has an air inlet 211 and an air outlet 212, wherein the air inlet 111, the air outlet 211, the air outlet 212, and the air outlet 112 are connected in sequence. The impeller 23 is disposed inside the volute 21. The motor 22 can drive the impeller 23 to rotate. The rotation of the impeller 23 can cause external air to enter the interior of the volute 21 for filtration by passing through the air inlet 111 and the air outlet 211 in sequence. The filtered clean air enters the environment by passing through the air outlet 212 and the air outlet 112 in sequence.

[0051] Existing tabletop range hoods typically include a pre-filter and a main filter, both of which are housed inside the outer casing. The pre-filter, main filter, and fan are arranged sequentially along the thickness of the casing. The pre-filter and main filter are usually located at the front of the fan and require additional space, resulting in a large tabletop range hood that occupies the already limited space of the dining table.

[0052] To solve the above problems, such as Figures 1-4 As shown in the figure, the present disclosure discloses a tabletop range hood 100 that further includes a filter assembly 30. The filter assembly 30 includes a first filter element 31 and / or a second filter element 32. The first filter element 31 is disposed at the air inlet 211, and the second filter element 32 is disposed inside the volute 21. By introducing the first filter element 31 and / or the second filter element 32 into the interior of the volute 21, the first filter element 31 and / or the second filter element 32 do not require additional space inside the housing 10, thereby reducing the size of the tabletop range hood 100 along the thickness direction. This results in a smaller volume for the tabletop range hood 100, effectively reducing the space occupied by the tabletop range hood 100, freeing up more desktop space for users, and effectively improving space utilization.

[0053] As an alternative solution, such as Figure 4 As shown, by simultaneously setting the first filter element 31 and the second filter element 32, the tabletop range hood 100 can achieve a dual filtration effect, effectively improving the filtration effect of the tabletop range hood 100.

[0054] As an alternative solution, such as Figures 3-5As shown, the second filter element 32 includes at least two folded portions 321. These folded portions 321 are arranged circumferentially along the output shaft 221 of the fan 20 and connected sequentially. By arranging these at least two folded portions 321, the unfolded area of ​​the second filter element 32 is larger when the outer perimeter of the second filter element 32 is constant, resulting in a better filtration effect for oil fumes. The second filter element 32 is the main filtration structure, and its material can be non-woven fabric or metal. The second filter element 32 has a folded structure and utilizes the principles of Brownian diffusion, electrostatic adsorption, and inertial collision to capture small oil fume particles (0.1μm-0.3μm oil fume), thereby completely filtering the oil fume particles.

[0055] As an alternative solution, such as Figures 3-5 As shown, the second filter element 32 also includes a first connecting plate 325 and a second connecting plate 326. The first connecting plate 325 and the second connecting plate 326 are disposed at both ends of at least two folds 321, which can achieve a better integrated and stable installation of the second filter element 32.

[0056] As an alternative solution, such as Figure 6 As shown, the second filter element 32 includes a first covering layer 322, an adsorption layer 323, and a second covering layer 324 stacked sequentially. The arrangement of the first covering layer 322 and the second covering layer 324 allows the second filter element 32 to form a unified structure, achieving a better filtration effect on oil fumes. Furthermore, the adsorption layer 323 further enhances the filtration effect of the second filter element 32 on oil fumes. For example, the first covering layer 322 and the second covering layer 324 can be at least one of non-woven fabric, meltblown cotton, or metal mesh. The adsorption layer 323 can be an activated carbon layer, etc.

[0057] As an alternative solution, such as Figures 2-4 As shown, the housing 10 includes an outer shell 11 and a middle shell 12. An air inlet 111 is located in the outer shell 11, and the middle shell 12 is disposed within the outer shell 11. The middle shell 12 includes a support frame 121, which includes a receiving cavity 1211 with an opening 12111 and a connecting port group 1212. A second filter element 32 is disposed in the receiving cavity 1211. The air inlet 111, the opening 12111, the connecting port group 1212, and the air inlet 211 are sequentially connected. The support frame 121 provides good support and restraint for the second filter element 32. Furthermore, the connecting port group 1212 allows external gas to pass smoothly and pass through the impeller 23.

[0058] In an optional embodiment, the connection port assembly 1212 may also be equipped with a filter screen (not shown in the figure), which can further improve the filtration effect of the tabletop range hood 100 on oil fumes.

[0059] As an alternative solution, such as Figure 3 and Figure 4 As shown, the middle shell 12 also includes a limiting member 122, which is disposed in the opening 12111. The limiting member 122 and the bottom plate 1213 of the support frame 121 together restrict the position of the second filter element 32 along the extension direction of the output shaft 221 of the fan 20, thereby preventing the second filter element 32 from falling out of the middle shell 12.

[0060] For example, such as Figure 3 and Figure 4 As shown, the limiting member 122 can be set to one, two, three or more. Setting one limiting member 122 can make the structure of the middle shell 12 simpler, and setting at least two limiting members 122 can achieve a better limiting effect on the second filter element 32.

[0061] As an alternative solution, such as Figure 2 and Figure 3 As shown, at least two connecting port groups 1212 are provided, and the at least two connecting port groups 1212 are arranged at intervals along the circumference of the support frame 121, which can ensure that the gas filtered by the second filter element 32 can pass through at least two connecting port groups 1212 well and move smoothly toward the impeller 23.

[0062] As an alternative solution, such as Figure 2 and Figure 3 As shown, the connection port group 1212 includes at least two connection ports 12121, which are arranged at intervals along the extension direction of the output shaft 221 of the blower 20, which can further improve the smooth passage of the gas after being filtered by the second filter element 32.

[0063] As an alternative solution, such as Figure 3 and Figure 4 As shown, the output shaft 221 of the motor 22 extends along the thickness direction of the housing 10. The first filter element 31 is connected to the output shaft 221. The oil fumes first pass through the first filter element 31. The first filter element 31 can intercept large oil droplets and water droplets. Large oil droplets are easier to separate because they have high inertia and poor ability to follow the airflow. When the large oil droplets and water droplets are intercepted by the first filter element 31, they are thrown to the outside of the first filter element 31 due to centrifugal force, and thus separated.

[0064] As an alternative solution, such as Figure 3 and Figure 4 As shown, the first filter element 31 is detachably connected to the output shaft 221, enabling quick disassembly, cleaning, and maintenance of the first filter element 31.

[0065] Specifically, such as Figure 3 and Figure 4 As shown, a step 2211 is provided on the output shaft 221. The first filter element 31 is sleeved on the output shaft 221 and abuts against the step 2211. The tabletop range hood 100 also includes a locking element 50. The locking element 50 and the step 2211 are located on both sides of the first filter element 31. The locking element 50 is screwed onto the output shaft 221. The locking element 50 and the step 2211 together clamp the first filter element 31, thereby achieving the effect of firmly fixing the first filter element 31 to the output shaft 221.

[0066] As an alternative solution, such as Figure 3 and Figure 7 As shown, the first filter element 31 includes a first mounting portion 311, a second mounting portion 312, and at least two connecting portions 313. The first mounting portion 311 is connected to the output shaft 221. The second mounting portion 312 is annular and spaced apart on the outer periphery of the first mounting portion 311. The at least two connecting portions 313 are disposed between the first mounting portion 311 and the second mounting portion 312 and are fixedly connected to the first mounting portion 311 and the second mounting portion 312 respectively. The at least two connecting portions 313 are arranged at intervals along the circumference of the second mounting portion 312. This structure of the first filter element 31 can achieve a good preliminary filtration effect for oil fumes. For example, the material of the first filter element 31 can be metal, plastic, etc. The first filter element 31 has a stable structure and can ensure a good preliminary filtration effect for oil fumes.

[0067] As an alternative solution, such as Figure 4 , Figure 7 and Figure 8 As shown, from the second mounting portion 312 to the first mounting portion 311, the connecting portion 313 extends into the interior of the volute 21, effectively increasing the contact area between the connecting portion 313 and the oil fumes, thus improving the filtration effect of the first filter element 31 on the oil fumes. Furthermore, the connecting portion 313 can effectively guide the oil fumes into the interior of the volute 21, improving the smoother entry of the oil fumes into the volute 21.

[0068] In an alternative embodiment, such as Figure 4 As shown, the tabletop range hood 100 also includes a shaft seal 60, which is sleeved on the output shaft 221 and located between the output shaft 221 and the middle shell 12. The shaft seal 60 uses its own sealing properties to tightly adhere to the output shaft 221, preventing oil fumes from escaping from the gap between the motor 22 and the middle shell 12, thus avoiding filter failure.

[0069] Example 2

[0070] like Figure 9As shown, this disclosure also provides a tabletop range hood 100. The structure of the tabletop range hood 100 in this disclosure is basically the same as that of the tabletop range hood 100 in Embodiment 1. The main difference between the two is that the tabletop range hood 100 also includes an oil guiding structure 40. The second filter element 32 and the oil guiding structure 40 are arranged from top to bottom and along the extension direction of the output shaft 221 of the fan 20. The second filter element 32 is annular. The lower edge of the outer contour of the longitudinal section of the second filter element 32 is inclined downward from the end away from the oil guiding structure 40 to the end close to the oil guiding structure 40, so that the second filter element 32 can automatically guide the intercepted oil droplets to the oil guiding structure 40 by gravity.

[0071] like Figure 9 As shown, the tabletop range hood 100 also includes an oil cup 70, which has an oil cup opening 71 located at the top. The oil cup 70 is located below the oil guiding structure 40, which includes an oil leakage hole 41 located directly above the oil cup opening 71. Oil droplets on the second filter element 32 enter the oil cup 70 for recycling through the oil leakage hole 41 and the oil cup opening 71 in sequence.

[0072] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A tabletop range hood, characterized in that, include: The housing (10) has an air inlet (111); A fan (20) includes a volute (21) having an air inlet (211), the volute (21) being disposed within the housing (10), the air inlet (211) being connected to the air inlet (111); and The filter assembly (30) includes a first filter element (31) and / or a second filter element (32), wherein the first filter element (31) is disposed at the air inlet (211) and the second filter element (32) is disposed inside the volute (21).

2. The tabletop range hood according to claim 1, characterized in that, The second filter element (32) includes at least two folds (321), which are arranged circumferentially along the output shaft (221) of the fan (20) and connected in sequence.

3. The tabletop range hood according to claim 1, characterized in that, The second filter element (32) includes a first coating layer (322), an adsorption layer (323), and a second coating layer (324) stacked in sequence.

4. The tabletop range hood according to claim 1, characterized in that, The tabletop range hood also includes an oil guiding structure (40). The second filter element (32) and the oil guiding structure (40) are arranged from top to bottom along the extension direction of the output shaft (221) of the fan (20). The second filter element (32) is annular. The lower edge of the outer contour of the longitudinal section of the second filter element (32) is inclined downward from the end away from the oil guiding structure (40) to the end close to the oil guiding structure (40).

5. The tabletop range hood according to any one of claims 1 to 4, characterized in that, The housing (10) includes: The housing (11), the air inlet (111) being formed in the housing (11); and The middle shell (12) is disposed inside the outer shell (11). The middle shell (12) includes a support frame (121). The support frame (121) includes a receiving cavity (1211) with an opening (12111) and a connecting port group (1212). The second filter element (32) is disposed in the receiving cavity (1211). The air inlet (111), the opening (12111), the connecting port group (1212) and the air inlet (211) are connected in sequence.

6. The tabletop range hood according to claim 5, characterized in that, The middle shell (12) also includes: A limiting member (122) is provided at the opening (12111), and the limiting member (122) and the bottom plate (1213) of the support frame (121) together restrict the position of the second filter element (32) along the extension direction of the output shaft (221) of the fan (20).

7. The tabletop range hood according to claim 5, characterized in that, The communication port group (1212) is configured to be at least two, and the at least two communication port groups (1212) are arranged at circumferential intervals along the support frame (121).

8. The tabletop range hood according to any one of claims 1 to 4, characterized in that, The fan (20) also includes a motor (22), the output shaft (221) of which extends along the thickness direction of the housing (10), and the first filter element (31) is connected to the output shaft (221).

9. The tabletop range hood according to claim 8, characterized in that, The first filter element (31) includes: The first mounting part (311) is connected to the output shaft (221); The second mounting portion (312) is annular and spaced apart on the outer periphery of the first mounting portion (311); and At least two connecting portions (313) are disposed between the first mounting portion (311) and the second mounting portion (312) and are fixedly connected to the first mounting portion (311) and the second mounting portion (312) respectively. The at least two connecting portions (313) are arranged at intervals along the circumference of the second mounting portion (312).

10. The tabletop range hood according to claim 8, characterized in that, The first filter element (31) is detachably connected to the output shaft (221).

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