Range hood

Abstract

The utility model discloses a range hood which comprises a range hood body and a lifting hoisting mechanism used for lifting and hoisting the range hood body and a ceiling, the range hood body comprises a shell and a main fan arranged in the shell, and a smoke suction port is formed in the bottom of the shell; the range hood body further comprises an air supply module arranged at the bottom of the shell, the air supply module comprises an air supply outlet, a heating piece and an air supply fan used for sending out air through the air supply outlet, and the air supply fan, the heating piece and the air supply outlet are sequentially arranged on an air flowing path.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil fume purification device, especially an oil fume extractor. BACKGROUND

[0002] The user of cooking light oil fume such as hot pot, conch powder and fried rice on the dining table and island table gradually increases, that is, people's cooking scene is not limited to the kitchen. In addition to installing the conventional kitchen hood, there is a demand for installing a second hood, so the overhead hoisting and lifting hood appears on the dining table and island table, which can be lowered to a certain height for purification during use and raised to the ceiling when not in use, without occupying space and affecting the view.

[0003] A ceiling hood disclosed in Chinese patent application No. 201821161517.9 comprises a hood body and a liftable hoisting mechanism. The hood body includes a shell, a fan assembly and a filter screen assembly. The shell defines a filter cavity. The fan assembly is rotatably arranged in the filter cavity to drive air to flow from an air inlet to an air outlet. The filter screen assembly is arranged in the filter cavity to purify the air entering the filter cavity. The hoisting rope of the liftable hoisting mechanism is connected with the hood body.

[0004] However, the dining table and island table are places for users to relax, work and operate, and the users stay longer than in the kitchen. For example, the cooling and heating problems of users at the dining table and island table can be solved by air conditioners, electric heaters and fans, but there are factors such as occupying space, strict placement distance requirements, inconvenient operation and high purchase cost. In addition, the existing hoisting and lifting hood has only the function of oil fume purification and cannot meet the user's demand for food warming and cooling.

[0005] Therefore, further improvement is needed. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problem of the prior art and provides an oil fume extractor that meets the user's cooling and heating needs, does not occupy a large space and is easy to operate.

[0007] The utility model adopts the technical scheme of an oil fume extractor, which comprises a hood body and a liftable hoisting mechanism for lifting the hood body and the ceiling. The hood body includes a shell and a main fan arranged in the shell. The bottom of the shell forms a smoke suction port. The features are as follows:

[0008] The hood body further comprises a supply air module arranged at the bottom of the shell. The supply air module comprises a supply air port, a heating sheet and a supply air fan that sends air out through the supply air port. The supply air fan, heating sheet and supply air port are arranged in sequence on the air flow path.

[0009] The cooking fume machine body is hoisted and arranged in a lifting manner, and the cooking fume and odor can be purified above the island table and the dining table. The air supply module is arranged, so that the height of the cooking fume machine body and the working or not working of the heating sheet are controlled to meet the cooling and heating functions of the user near the dining table and the island table, and the cold food and the warm food are realized. The cooking fume machine does not occupy a large space, is convenient to operate, and realizes the functional diversity of the cooking fume machine.

[0010] In order to conveniently arrange the air supply port and the heating sheet, the air supply module comprises a hollow cover body, the air supply port is arranged on the bottom of the cover body, and the heating sheet is arranged in the cover body.

[0011] In order to conveniently control the air supply direction to meet the needs of the user or the food, the air supply port is provided with an air deflector, the air deflector is rotationally connected with the cover body, and the rotation axis of the air deflector extends transversely.

[0012] Preferably, in order to conveniently arrange the heating sheet, the cover body comprises an upper cover and a lower cover, and the air supply port is arranged on the lower cover.

[0013] Preferably, in order to realize air supply in all directions, the lower cover is annular and surrounds the outer periphery of the smoke suction port, the air supply port is in a strip shape and is arranged on each side of the rectangle, and the air supply fan also has four and is correspondingly arranged on each side of the rectangle.

[0014] Preferably, the air supply fan is a small centrifugal fan, the air supply fan has a secondary air inlet and a secondary air outlet, the side wall of the shell is provided with an opening corresponding to the secondary air inlet, so that the secondary air inlet is in fluid communication with the outside of the shell through the opening in the side wall of the shell, the secondary air outlet is communicated to the air supply port, and the heating sheet is arranged between the secondary air outlet and the corresponding air supply port.

[0015] Preferably, in order to realize air supply in all directions, the air supply port surrounds the outer periphery of the smoke suction port.

[0016] In order to conveniently filter the oil fume particles and the odor, the filter module is further arranged in the shell, and the filter module is arranged upstream of the main fan in the oil fume flow path.

[0017] In order to conveniently realize the hoisting and lifting of the cooking fume machine body, the lifting and hoisting mechanism comprises a lifting module for being mounted on the ceiling and a hoisting rope for transmitting the output of the lifting module to the cooking fume machine body.

[0018] Compared with the prior art, the oil fume extractor has the advantages that the oil fume extractor body is hoisted and arranged in a lifting manner, and the cooking oil fume and odor can be purified above the island table and the dining table; the air supply module is arranged, the lifting height of the oil fume extractor body and the working or not working of the heating sheet can be controlled, the functions of refrigeration and heating near the dining table and the island table can be met, cold food and warm food can be realized, the oil fume extractor does not occupy large space and is convenient to operate, and the function diversity of the oil fume extractor is realized. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is a schematic view of an oil fume extractor according to an embodiment of the present application;

[0020] Figure 2 FIG. 2 is a schematic view of an oil fume extractor body according to an embodiment of the present application (viewed from top to bottom);

[0021] Figure 3 FIG. 3 is a schematic view of an oil fume extractor body according to an embodiment of the present application (viewed from bottom to top);

[0022] Figure 4 FIG. 4 is a sectional view (longitudinal section) of an oil fume extractor body according to an embodiment of the present application;

[0023] Figure 5 FIG. 5 is a sectional view (transverse section) of an oil fume extractor body according to an embodiment of the present application (viewed from top to bottom);

[0024] Figure 6 FIG. 6 is a sectional view (sectional plane is parallel to the longitudinal direction, viewed from bottom to top) of an oil fume extractor body according to an embodiment of the present application; Figure 5

[0025] Figure 7 FIG. 7 is a schematic view of an air supply module of an oil fume extractor body according to an embodiment of the present application;

[0026] Figure 8 FIG. 8 is an exploded structural schematic view of an air supply module of an oil fume extractor body according to an embodiment of the present application. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions.

[0028] ​In the description of the utility model, it is understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the utility model can be arranged in different directions, so these orientation terms are only as an illustration and should not be regarded as a limitation, for example, "upper", "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity. In addition, the features defined as "first", "second" can explicitly or implicitly include one or more features.

[0029] Referring to Figures 1-4 An oil fume extractor is a suspended fume extractor, comprising a liftable suspension mechanism 1 and a fume extractor body 2, the liftable suspension mechanism 1 can adopt the prior art mentioned in the background art (disclosed in 201821161517.9), which has a lifting module 12 for installation in a suspended ceiling and a suspension rope 11 for transmitting the output of the lifting module 12 to the fume extractor body 2, the liftable suspension mechanism 1 realizes the suspension of the fume extractor body 2 with the suspended ceiling, and can make the fume extractor body 2 lift.

[0030] The fume extractor body 2 is used for removing oil fume and odor, comprising a shell 21, a main fan 22 arranged in the shell 21 and a filter module 23 arranged in the shell 21, the bottom of the shell 21 is formed with a smoke suction port 211, and a filter screen 212 can be arranged at the smoke suction port 211. The main fan 22 can be an axial fan, which has a main air inlet 221 at the bottom and a main air outlet 222 at the top, and the main air outlet 222 is in fluid communication with the outside of the shell 21 at the top of the shell 21, so as to discharge gas. In the oil fume flow path, the filter module 23 is arranged upstream of the main fan 22, for filtering the oil fume and odor sucked by the smoke suction port 211.

[0031] Further combined Figures 5-8, the smoke machine body 2 further comprises a supply air module 24 arranged at the bottom of the shell 21, the supply air module 24 comprises a cover body in a ring shape, which is embedded at the bottom of the shell 21 and surrounds the outer periphery of the smoke suction port 211. In order to facilitate installation, the cover body can comprise an upper cover 241 and a lower cover 242, which can be buckled together to form an integral whole. The supply air module 24 further comprises a supply air fan 243, which can be a small centrifugal fan, and has a secondary air inlet 2431 and a secondary air outlet 2432. The side wall of the shell 21 can be provided with an opening 213 corresponding to the secondary air inlet 2431, so that the secondary air inlet 2431 can be in fluid communication with the outside of the shell 21 through the opening 213 in the side wall of the shell 21, and the secondary air outlet 2432 is communicated to the inside of the cover body.

[0032] The lower cover 242 is provided with a supply air port 2421, which is in a strip shape. Optionally, the supply air port 2421 has four, i.e. the lower cover 242 is in a ring shape of a rectangle, and the supply air port 2421 is arranged on each side of the rectangle. Correspondingly, in order to make the air supply uniform, the supply air fan 243 also has four, which are arranged on each side of the rectangle correspondingly. The cover body is further provided with heating pieces 244, which also have four and are arranged between the secondary air outlet 2432 and the corresponding supply air port 2421.

[0033] In order to facilitate the direction of the air flow blown out by the supply air port 2421, a wind guide plate 245 is further arranged at each supply air port 2421, and the wind guide plate 245 is rotatably connected with the cover body, and the rotation axis extends horizontally. Among them, the left and right wind guide plates 245 can rotate around the axis extending in front and back, and the front and back wind guide plates 245 can rotate around the axis extending in left and right. The wind guide plate 245 not only can change the direction of air supply, but also can close the supply air port 2421.

[0034] The smoke exhaust hood of the utility model can work in the following modes:

[0035] 1. Purifying cooking oil fume and odor

[0036] This function solves the problem of light cooking oil fume and odor such as hot pot, congee rice and so on on the dining table and island.

[0037] During cooking, the smoke machine body 2 is lowered to about 50-60 cm from the table top, and the main fan 22 is operated. At this time, the wind speed of the smoke suction port 211 is V, and under the action of V, the oil fume and odor are sucked into the smoke suction port 211, filtered and purified by the filter module 23, and clean air is discharged from the main air outlet 222, i.e. the purification function is realized.

[0038] 2. Cooling food and warming food function

[0039] This function solves the problem of food that needs to be cooled down quickly and food that needs to be kept warm.

[0040] ① Warm food: the range hood body 2 is lowered to a distance of about 20-30 cm from the table top 20, the main fan 22 is not started; the four air supply fans 243 suck air from outside the shell 21, and then send it to the heating fins 244, at this time the heating fins 244 are working, and the working temperature is T1, the air becomes heated, and the four air deflectors 245 are vertically downward, vertically blowing the heated air to the food on the table top (the wind speed of the four air supply ports 2421 is V1), achieving the food warming function.

[0041] ② Cool food: the range hood body 2 is lowered to a distance of about 20-0 cm from the table top 20, the main fan 22 is not started; the four air supply fans 243 suck air from outside the shell 21, and then send it to the heating fins 244, at this time the heating fins 244 are not working, so the air after passing through the heating fins 244 is still cool, and the four air deflectors 245 are vertically downward, vertically blowing the cool air under the action of the four air supply fans 243 to the food on the table top (the wind speed of the four air supply ports 2421 is V2), achieving the food cooling function.

[0042] 3. User cooling and heating near the dining table and island

[0043] ① Warm: the range hood body 2 is lowered to a distance of about 90-110 cm from the table top 20, the main fan 22 is not started; the four air supply fans 243 suck air from outside the shell 21, and then send it to the heating fins 244, at this time the heating fins 244 are working, and the working temperature is T2, the air becomes heated, and the four air deflectors 245 are in an inclined state (the inclination angle is adjusted according to the user's position), blowing the heated air to the user (the wind speed of the four air supply ports 2421 is V3), achieving the user's heating function near the dining table and island.

[0044] ② Cooling: the range hood body 2 is lowered to a distance of about 90-110 cm from the table top 20, the main fan 22 is not started; the four air supply fans 243 suck cool air from the shell 21, and then send it to the heating fins 244, at this time the heating fins 244 are not working, so the air after passing through the heating fins 244 is still cool, and the four air deflectors 245 are in an inclined state (the inclination angle is adjusted according to the user's position), blowing the cool air to the user (the wind speed of the four air supply ports 2421 is V4), achieving the user's cooling function near the dining table and island.

[0045] The "fluid communication" in the utility model refers to the spatial position relation between two components or parts (hereinafter collectively referred to as a first part and a second part), that is, fluid (gas, liquid or mixture of both) can flow or / and be transported from the first part to the second part along the flow path, which can be directly connected between the first part and the second part, or indirectly connected between the first part and the second part through at least one third party, which can be a fluid passage such as a pipeline, a channel, a conduit, a flow guide, a hole, a groove, etc., or a chamber allowing fluid to flow or a combination thereof.

Claims

1. A range hood, comprising a range hood body (2) and a liftable hoisting mechanism (1) for lifting the range hood body (2) with a suspended ceiling, the range hood body (2) comprising a housing (21) and a main fan (22) arranged in the housing (21), and a smoke suction port (211) is formed at the bottom of the housing (21); characterized in that: the range hood body (2) further comprises a supply air module (24) arranged at the bottom of the housing (21), the supply air module (24) comprising a supply air port (2421), a heating sheet (244), and a supply air fan (243) for sending air out through the supply air port (2421), and the supply air fan (243), the heating sheet (244), and the supply air port (2421) are arranged in sequence in the air flow path. The supply air module (24) comprises a hollow cover body, the supply air port (2421) is formed at the bottom of the cover body, and the heating sheet (244) is arranged in the cover body.

2. The hood according to claim 1, characterized in that: A guide vane (245) is arranged at the supply air port (2421), the guide vane (245) is rotationally connected with the cover body, and the rotation axis of the guide vane (245) extends transversely.

3. The hood according to claim 2, characterized in that: The cover body comprises an upper cover (241) and a lower cover (242), and the supply air port (2421) is arranged on the lower cover (242).

4. The hood according to claim 2, characterized in that: The lower cover (242) is annular and rectangular, and surrounds the outer periphery of the smoke suction port (211), the supply air port (2421) is long strip-shaped and is formed on each side of the rectangle, and the supply air fan (243) also has four and is arranged on each side of the rectangle, respectively.

5. The hood according to claim 4, characterized in that: The supply air fan (243) is a small centrifugal fan, the supply air fan (243) has a secondary air inlet (2431) and a secondary air outlet (2432), the side wall of the housing (21) is provided with an opening (213) corresponding to the secondary air inlet (2431), so that the secondary air inlet (2431) is in fluid communication with the outside of the housing (21) through the opening (213) in the side wall of the housing (21), the secondary air outlet (2432) is communicated to the supply air port (2421), and the heating sheet (244) is arranged between the secondary air outlet (2432) and the corresponding supply air port (2421).

6. The hood according to claim 1, characterized in that: The supply air port (2421) surrounds the outer periphery of the smoke suction port (211).

7. The hood according to claim 1, characterized in that: A filter module (23) is further arranged in the housing (21), and the filter module (23) is arranged upstream of the main fan (22) in the oil fume flow path.

8. The hood according to any one of claims 1-7, characterized in that: The liftable hoisting mechanism (1) comprises a lifting module (12) for being mounted on a suspended ceiling and a hoisting rope (11) for transmitting the output of the lifting module (12) to the range hood body (2).

9. The hood according to any one of claims 1-7, characterized in that: ​

Images