Range hood

Abstract

The utility model discloses a range hood which comprises a shell, the shell comprises an air inlet, a fan and a purification assembly for treating oil smoke smell are arranged in the shell, the fan comprises a fan input end, and the purification assembly comprises an ozone reaction part. The ozone reaction part comprises an ozone reaction part input end and an ozone reaction part output end, the ozone reaction part input end is arranged corresponding to the air inlet, and the ozone reaction part output end is arranged corresponding to the fan input end; the range hood is characterized by further comprising a baffle assembly capable of opening or closing a fluid communication channel between the output end of the ozone reaction part and the input end of the fan, the baffle assembly is arranged in the shell, and the baffle assembly is arranged between the output end of the ozone reaction part and the input end of the fan. Compared with the prior art, the oil fume purification device has the advantages that the reaction time of the ozone reaction piece and oil fume smell can be prolonged, and the purification effect is improved.

Description

Technical Field

[0001] The utility model relates to a fume purifying device, in particular to a range hood. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It can quickly remove the fumes generated during the cooking process, reduce pollution, and purify the air.

[0003] For example, a hot pot smokeless purifier disclosed in the Chinese utility model patent with application number 201420834390.8 includes a box body, a defogger, a UV deodorizer, an ozone decomposer, an electric control box and a fan. At least one air inlet is provided in the upper left corner of the box body, and an air outlet is provided in the upper right corner of the box body. Inside the box body, between the air inlet and the air outlet, a defogger, a UV deodorizer, and an ozone decomposer are provided in sequence. A fan is also provided below the exhaust outlet, and an electric control box is also installed on the box body.

[0004] It is common to use ozone technology to treat hot pot odors, but there are some problems: for example, ozone technology needs a certain reaction time to treat hot pot odors, and there is a phenomenon of odor escape without being reflected. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a range hood to increase the reaction time between ozone and oil smoke and improve the purification effect in view of the deficiencies in the above-mentioned prior art.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a range hood, comprising a shell, the shell comprising an air inlet, a fan and a purification component for treating oil fume odor are arranged in the shell, the fan comprises a fan input end, the purification component comprises an ozone reaction element, the ozone reaction element comprises an ozone reaction element input end and an ozone reaction element output end, the ozone reaction element input end is arranged corresponding to the air inlet, and the ozone reaction element output end is arranged corresponding to the fan input end, characterized in that: the range hood also includes a baffle assembly capable of opening or closing a fluid communication channel between the ozone reaction element output end and the fan input end, the baffle assembly is arranged in the shell, and the baffle assembly is arranged between the ozone reaction element output end and the fan input end.

[0007] By providing a baffle assembly, the baffle assembly can close the fluid communication channel between the output end of the ozone reaction element and the input end of the fan, thereby increasing the reaction time between the ozone reaction element and the oil fume odor and improving the purification effect.

[0008] In order to open or close the fluid communication channel between the output end of the ozone reaction element and the input end of the fan, the baffle assembly is a telescopic structure.

[0009] The baffle assembly includes a first telescopic plate and a second telescopic plate, which are respectively arranged on two opposite sides of the output end of the ozone reaction element. The first telescopic plate and the second telescopic plate can be extended in a direction close to each other, so as to close the fluid communication channel between the output end of the ozone reaction element and the input end of the fan, thereby increasing the reaction time between the ozone reaction element and the oil fume odor and improving the purification effect.

[0010] In order to be able to further evolve the oil fume odor that does not meet the standard, the fan includes a fan output end, and the range hood also includes a guide channel that can guide the oil fume flowing out of the fan output end to the ozone reaction element again, and the guide channel includes a guide channel input end arranged corresponding to the fan output end and a guide channel output end arranged corresponding to the ozone reaction element.

[0011] In order to be able to open or close the guide channel, the range hood also includes a first cover plate that can open or close the input end of the guide channel and a second cover plate that can open or close the output end of the guide channel. The first cover plate and the second cover plate are both arranged on the guide channel.

[0012] In order to better collect substandard oil fume odor, the shell includes an air outlet, and the range hood also includes an air outlet hood assembly, the air outlet hood assembly includes an air outlet hood body, the air outlet hood body is arranged at the air outlet, and the input end of the guide channel is connected to the inner side of the air outlet hood body.

[0013] In order to achieve controllable air output from the air outlet hood, the air outlet hood body includes an air outlet hood body output end, and the air outlet hood assembly also includes a third cover plate capable of opening or closing the air outlet hood body output end, and the third cover plate is arranged on the air outlet hood body.

[0014] In order to blow the gas with substandard odor into the guide channel and help cool the ozone reaction element, the air outlet hood body is provided with a fan that can introduce the air outside the air outlet hood body into the inside of the air outlet hood body.

[0015] In order to control the air intake of the fan, the fan includes a fan input end, the air outlet cover body is provided with an opening corresponding to the fan input end, and the air outlet cover body is also provided with a fourth cover plate capable of opening or closing the opening.

[0016] In order to blow the gas with substandard odor into the guide channel and help cool the ozone reaction element, the range hood also includes a fan that can introduce air from the outside of the range hood into the input end of the guide channel.

[0017] In order to detect the concentration of oil fume odor, the range hood is further provided with a sensor capable of detecting the concentration of oil fume odor, and the sensor is arranged corresponding to the ozone reaction element.

[0018] In order to remove oil and water from the oil fume gas, a water and oil removal component is further provided in the shell, and the water and oil removal component is arranged between the input end of the ozone reaction component and the air inlet.

[0019] Compared with the prior art, the utility model has the advantages that: by setting a baffle assembly, the baffle assembly can close the fluid communication channel between the output end of the ozone reaction element and the input end of the fan, thereby increasing the reaction time between the ozone reaction element and the oil fume odor and improving the purification effect. By setting a diversion channel, the oil fume odor that does not meet the standard can be further evolved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the installation of a range hood according to an embodiment of the utility model;

[0021] Figure 2 It is a cross-sectional view of a range hood according to an embodiment of the utility model. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present utility model can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0024] See also Figure 1 , a range hood is hung on a ceiling 300 through four ropes 200.

[0025] See also Figure 1-2 The range hood comprises a housing 1, and the housing 1 comprises an air inlet 11 and an air outlet 12. A fan 2 is arranged in the housing 1. The fan 2 comprises a fan input end 21 and a fan output end 22. The fan output end 22 is arranged corresponding to the air outlet 12.

[0026] A purification component for treating oil fume odor is also provided in the housing 1. The purification component includes an ozone reaction component 31 and a power supply 32 for supplying power to the ozone reaction component 31. Preferably, the ozone reaction component 31 is an ozone electrode plate. The ozone reaction component 31 includes an ozone reaction component input end 311 and an ozone reaction component output end 312, wherein the ozone reaction component input end 311 is provided corresponding to the air inlet 11, and the ozone reaction component output end 312 is provided corresponding to the fan input end 21.

[0027] The range hood further comprises a baffle assembly 10 capable of opening or closing a fluid communication passage between the ozone reaction component output end 312 and the fan input end 21. The baffle assembly 10 is arranged in the housing 1, and the baffle assembly 10 is arranged between the ozone reaction component output end 312 and the fan input end 21. The baffle assembly 10 is a telescopic structure. The baffle assembly 10 comprises a first telescopic plate 101 and a second telescopic plate 102. The first telescopic plate 101 and the second telescopic plate 102 are respectively arranged on opposite sides of the ozone reaction component output end 312, and the first telescopic plate 101 and the second telescopic plate 102 can be extended in a direction close to each other.

[0028] The range hood further includes a guide channel 4 capable of guiding the oil smoke flowing out from the fan output end 22 to the ozone reaction element 31 again. The guide channel 4 includes a guide channel input end 41 arranged corresponding to the fan output end 22 and a guide channel output end 42 arranged corresponding to the ozone reaction element 31. The range hood further includes a first cover plate 521 capable of opening or closing the guide channel input end 41 and a second cover plate 522 capable of opening or closing the guide channel output end 42, and the first cover plate 521 and the second cover plate 522 are both arranged on the guide channel 4.

[0029] The range hood further includes an air outlet hood assembly, which includes an air outlet hood body 51, which is disposed at the air outlet 12, and the air guide channel input end 41 is connected to the inner side of the air outlet hood body 51. The air outlet hood body 51 includes an air outlet hood body output end 511. The air outlet hood assembly further includes a third cover plate 512 capable of opening or closing the air outlet hood body output end 511, and the third cover plate 512 is disposed on the air outlet hood body 51.

[0030] The air outlet hood body 51 is provided with a fan 6 capable of introducing air from the outside of the air outlet hood body 51 into the inside of the air outlet hood body 51. After the air enters the range hood from the outside (inside the air outlet hood body 51), it can enter the guide channel 4 from the guide channel input end 41. The fan 6 includes a fan input end 61 and a fan output end 62. The air outlet hood body 51 is provided with an opening 513 corresponding to the fan input end 61, and the air outlet hood body 51 is also provided with a fourth cover plate 514 capable of opening or closing the opening 513.

[0031] The range hood is also provided with a sensor 7 capable of detecting the concentration of oil smoke odor. The sensor 7 is provided corresponding to the ozone reaction element 31. A control module 9 electrically connected to the sensor 7 is also provided in the housing 1.

[0032] A water-removing and oil-removing component 8 is also disposed in the housing 1 . The water-removing and oil-removing component 8 is disposed between the ozone reaction component input end 311 and the air inlet 11 .

[0033] The range hood of this embodiment can be applied to hot pot scenes, and the working process of the range hood is as follows:

[0034] 1) When eating hot pot, the range hood is turned on, the fan 2 rotates, and a negative pressure area is formed at the air inlet 11, which sucks in the hot pot smell, oil, water vapor, etc., and first passes through the water and oil removal component 8 to remove the oil and water vapor to avoid affecting the performance of the ozone reaction component 31;

[0035] 2) The hot pot odor components enter the ozone reaction element 31, and the power supply discharges 32, converting oxygen into ozone at the ozone reaction element 31;

[0036] At the same time, the first cover plate 521, the second cover plate 522, the third cover plate 512 and the fourth cover plate 514 are all in a closed state. When the sensor 7 detects that the hot pot smell enters the ozone reaction element 31, it feeds back a signal to the control module 9, and the control module 9 controls the first telescopic plate 101 and the second telescopic plate 102 to extend, and the first telescopic plate 101 and the second telescopic plate 102 extend and maintain this state for a time t1. During this t1 time period, the strong oxidizing property of ozone converts the hot pot smell into harmless carbon dioxide and water. During this t1 time period, due to the shielding of the baffle assembly 10, the reaction residence time is increased, and the phenomenon that the hot pot smell escapes without reacting with ozone is reduced, so the purification capacity of the ozone reaction layer is improved;

[0037] 3) After time t1, the sensor 7 detects whether the odor concentration P1 is less than the preset threshold value P. Regardless of whether it is reached or not, the baffle assembly 10 will shrink to prevent the hot pot odor at the air inlet 11 from escaping into the room due to long-term blocking;

[0038] 3.1) When P1≤P, the first cover plate 521, the second cover plate 522, the third cover plate 512 and the fourth cover plate 514 are all opened to discharge the purified gas that meets the standards into the room;

[0039] 3.2) When P1>P, during the time period t2, the first cover plate 521, the second cover plate 522, the third cover plate 512 and the fourth cover plate 514 are all closed, and the substandard gas is blown into the guide channel 4 under the action of the fan 6 and the blower 2, and re-enters the ozone reaction element 31, and the above steps 2) and 3) are repeated. In addition, after the gas is blown into the guide channel 4, the third cover plate 512 will be reopened.

[0040] t2 is instantaneous and much shorter than t1, so that the gas entering the ozone reaction element 31 for the second time will not interfere with the newly entering gas. The gas entering the ozone reaction element 31 for the second time will have a lower temperature due to the previous effect of the fan 6, so the second entry into the ozone reaction element 31 will reduce its reaction temperature, thereby alleviating the problem of heat dissipation of the ozone reaction element 31.

[0041] The "fluid communication" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A range hood, comprising a housing (1), the housing (1) comprising an air inlet (11), a fan (2) and a purification component for treating oil fume odors are arranged in the housing (1), the fan (2) comprising a fan input end (21), the purification component comprising an ozone reaction element (31), the ozone reaction element (31) comprising an ozone reaction element input end (311) and an ozone reaction element output end (312), the ozone reaction element input end (311) being arranged corresponding to the air inlet (11), and the ozone reaction element output end (312) being arranged corresponding to the fan input end (21), characterized in that: The range hood further comprises a baffle assembly (10) capable of opening or closing a fluid communication passage between an ozone reaction element output end (312) and a fan input end (21); the baffle assembly (10) is arranged in the housing (1); the baffle assembly (10) is arranged between the ozone reaction element output end (312) and the fan input end (21).

2. The range hood according to claim 1, characterized in that: The baffle assembly (10) is a telescopic structure.

3. The range hood according to claim 2, characterized in that: The baffle assembly (10) comprises a first telescopic plate (101) and a second telescopic plate (102); the first telescopic plate (101) and the second telescopic plate (102) are respectively arranged on two opposite sides of an ozone reaction element output end (312); the first telescopic plate (101) and the second telescopic plate (102) are capable of extending in a direction approaching each other.

4. The range hood according to claim 1, characterized in that: The fan (2) comprises a fan output end (22), and the range hood further comprises a guide channel (4) capable of guiding the oil smoke flowing out of the fan output end (22) to the ozone reaction element (31) again, and the guide channel (4) comprises a guide channel input end (41) arranged corresponding to the fan output end (22) and a guide channel output end (42) arranged corresponding to the ozone reaction element (31).

5. The range hood according to claim 4, characterized in that: The range hood further comprises a first cover plate (521) capable of opening or closing an input end (41) of the guide channel, and a second cover plate (522) capable of opening or closing an output end (42) of the guide channel, wherein the first cover plate (521) and the second cover plate (522) are both arranged on the guide channel (4).

6. The range hood according to claim 4, characterized in that: The housing (1) comprises an air outlet (12), the range hood further comprises an air outlet hood assembly, the air outlet hood assembly comprises an air outlet hood body (51), the air outlet hood body (51) is arranged at the air outlet (12), and the guide channel input end (41) is connected to the inner side of the air outlet hood body (51).

7. The range hood according to claim 6, characterized in that: The air outlet hood body (51) comprises an air outlet hood body output end (511), and the air outlet hood assembly further comprises a third cover plate (512) capable of opening or closing the air outlet hood body output end (511), and the third cover plate (512) is arranged on the air outlet hood body (51).

8. The range hood according to claim 6, characterized in that: The air outlet cover body (51) is provided with a fan (6) capable of introducing air outside the air outlet cover body (51) into the inside of the air outlet cover body (51).

9. The range hood according to claim 8, characterized in that: The fan (6) comprises a fan input end (61), the air outlet cover body (51) is provided with an opening (513) corresponding to the fan input end (61), and the air outlet cover body (51) is also provided with a fourth cover plate (514) capable of opening or closing the opening (513).

10. The range hood according to claim 5, characterized in that: The range hood further comprises a fan (6) capable of introducing air outside the range hood into the input end (41) of the guide channel.

11. The range hood according to claim 1, characterized in that: The range hood is also provided with a sensor (7) capable of detecting the concentration of oil fume odor, and the sensor (7) is provided corresponding to the ozone reaction element (31).

12. The range hood according to any one of claims 1 to 11, characterized in that: A water and oil removal component (8) is also provided in the housing (1), and the water and oil removal component (8) is arranged between the input end (311) of the ozone reaction component and the air inlet (11).

Images