A range hood with intelligently controlled dynamic rotating filter and control method thereof

Abstract

A range hood with an intelligently controlled dynamic rotating filter and a control method thereof, belonging to the technical field of range hoods. It comprises a range hood body, a fan-shaped filter and a fan, wherein the filter is fixedly mounted at the bottom of the range hood body, the fan is embeddedly mounted at the upper part of the range hood body, and a wind shield is arranged around the outer side of the filter; a fixed pipe assembly and a fixed bracket are fixedly mounted inside the range hood body, and the fixed pipe assembly comprises a pipe body, a plurality of infrared emitting devices, a fixing plate and an independent motor. The present invention can effectively separate grease and liquid-solid particles with smaller particle sizes by setting rotating blades and multiple filter screens; the fan-shaped structure and dynamic rotation of the rotating blades are utilized to facilitate the fall of grease, and the filter screen is not easily blocked, and the pressure drop is increased after rotation, thereby promoting the inhalation of fumes; an infrared transmitting and receiving system is provided to control the start-up and rotation speed of the independent motor, which is intelligent, energy-saving and environmentally friendly.

Description

Technical Field

[0001] The invention belongs to the technical field of range hoods, and in particular relates to a range hood with an intelligently controlled dynamic rotating filter and a control method thereof. Background Art

[0002] As the country and society place increasingly higher demands on environmental quality, atmospheric haze control has become one of the environmental issues that need to be addressed urgently. Among them, catering emissions are another important source of pollution after industrial waste gas and automobile exhaust. The pollutant waste emitted by catering is mainly discharged into the atmosphere from range hoods. Therefore, in the process of increasing the exhaust volume of range hoods, it is also necessary to increase the oil separation degree in oil fumes.

[0003] The existing range hoods on the market mainly use oil guide nets or oil guide plates to improve oil separation; however, this method is not very effective for liquid and solid phases with smaller particles. After long-term use, oil droplets will solidify on the filter to form an oil film with poor fluidity, causing filter blockage, increased pressure drop, and oil smoke unable to enter the flue gas duct. Summary of the invention

[0004] In view of the above problems existing in the prior art, the object of the present invention is to provide a range hood with an intelligently controlled dynamic rotating filter which can effectively improve the grease separation degree, is not prone to filter clogging, and is energy-saving and environmentally friendly.

[0005] The present invention provides the following technical solution: a range hood with an intelligently controlled dynamic rotating filter, characterized in that it comprises a range hood body, a fan-shaped filter and a fan, wherein the filter is fixedly mounted at the bottom of the range hood body, the fan is embeddedly mounted at the upper part of the range hood body, and a wind shield is arranged around the outer side of the filter;

[0006] A fixed pipe assembly and a fixed bracket are fixedly installed inside the range hood body, and the fixed pipe assembly includes a pipe body, a plurality of infrared emitting devices, a fixing plate placed in the middle of the pipe body, and an independent motor installed on the fixing plate;

[0007] The filter screen includes an external shell, a connecting column and a plurality of blades mounted on the connecting column, and the filter screen is connected to the output end of the independent motor through the connecting column;

[0008] The range hood with an intelligently controlled dynamic rotating filter is characterized in that a plurality of smoke holes are evenly arranged on the blades.

[0009] The range hood with an intelligently controlled dynamic rotating filter is characterized in that two ends of the tube body are fixed on the inner walls of both sides of the range hood body.

[0010] The range hood with an intelligently controlled dynamic rotating filter is characterized in that the infrared emitting device is a round infrared emitting head, and a plurality of infrared emitting devices are embedded and evenly arranged in the tube body and symmetrically distributed along the independent motor.

[0011] The range hood with intelligently controlled dynamic rotating filter is characterized in that the distance between the two infrared emitting devices is 3-5 cmm.

[0012] The range hood with an intelligently controlled dynamic rotating filter is characterized in that the wind shield is in a circular shape, comprising an upper vertical section and a lower inclined section, the angle of the inclined section is 160-163°, the height of the inclined section is 20-23cm, and the height of the vertical section is 7-10cm.

[0013] The range hood with an intelligently controlled dynamic rotating filter is characterized in that the fan is placed obliquely just above the wind shield.

[0014] The range hood with an intelligently controlled dynamic rotating filter is characterized in that the fixed bracket includes a planar structure fixedly connected to the inner walls on both sides of the range hood body and a concave curved surface structure in the middle, and the concave curved surface structure is sleeved on the outside of the independent motor to prevent the independent motor from shaking during operation.

[0015] The range hood with intelligent control dynamic rotating filter is characterized in that an infrared receiving device corresponding to the infrared transmitting device is arranged on the range hood body. A control method for a range hood with intelligent control dynamic rotating filter is characterized in that it includes the following specific control steps:

[0016] 1) Turn on the range hood power when you start cooking;

[0017] 2) Infrared emitters distributed on the fixed tubes emit infrared rays L1, L2, L3…;

[0018] 3) The infrared receiving device distributed on the range hood body receives the infrared light signals L1, L2, L3…;

[0019] 4) The infrared receiving device transmits the signal to the signal processing module for processing, and after processing, the primary signal I1 and the secondary signal I2 are obtained. The primary signal I1 is used to control the start of the independent motor, and the motor drives the filter to rotate after starting;

[0020] 5) The secondary signal I2 is transmitted to the signal judgment mechanism module, and the voting mechanism module votes on the secondary signal I2; when the secondary signal I2 is enhanced, the control signal K is output to reduce the speed of the motor. Similarly, when the secondary signal I2 is weakened, the control signal K is output to increase the speed of the motor.

[0021] 6) When cooking is finished, turn off the power, the infrared emitting device stops working, the processing module stops outputting the first-level signal I1, the independent motor stops running, and the filter stops rotating.

[0022] By adopting the above technology, compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1) The present invention can effectively separate grease and liquid-solid particles with smaller diameters, such as PM10 and PM2.5, by providing rotating blades and multiple filter screens; the fan-shaped structure and dynamic rotation of the rotating blades are beneficial to the fall of grease, and are not likely to cause filter screen blockage; the rotation increases the pressure drop, and promotes the inhalation of oil smoke;

[0024] 2) The present invention is provided with an infrared transmitting and receiving system for controlling the start-up and rotation speed of the independent motor, which is intelligent, energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the fixed pipe structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the filter structure of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the wind shield ring of the present invention;

[0030] Figure 6 It is the control principle diagram of the present invention.

[0031] In the figure: 1. range hood body; 2. filter; 21. connecting column; 22. blades; 23. smoke hole; 3. fixed pipe assembly; 31. pipe body; 32. infrared emitting device; 33. fixing plate; 34. independent motor; 4. wind shield; 5. fan; 6. fixed bracket. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments of the specification. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] On the contrary, the present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention as defined by the claims. Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the detailed description of the present invention below. Those skilled in the art can fully understand the present invention without the description of these details.

[0034] See also Figure 1-2 , a range hood with an intelligently controlled dynamic rotating filter, comprising a range hood body 1, a fan-shaped filter 2, a fixed pipe assembly 3, a wind shield 4, a fan 5 and a fixed bracket 6;

[0035] The filter 2 is fixedly installed at the bottom of the range hood body 1, the fan 5 is embeddedly installed at the upper part of the range hood body 1, the wind shield 4 is arranged around the outer side of the filter 2, and the fixed pipe assembly 3 and the fixed bracket 6 are fixedly installed inside the range hood body 1;

[0036] The fan 5 is placed obliquely just above the wind shield 4 .

[0037] See also Figure 3 The fixed pipe assembly 3 includes a pipe body 31 whose two ends are fixed on the inner walls of both sides of the range hood body 1, a plurality of infrared emitting devices 32, a fixing plate 33 placed in the middle of the pipe body 31, and an independent motor 34 installed on the fixing plate 33;

[0038] The infrared emitting device 32 is a round infrared emitting head. Several infrared emitting devices 32 are embedded and evenly arranged in the tube body 31 and symmetrically distributed along the independent motor 34. The distance between two adjacent infrared emitting devices 32 is 3-5 cmm. The range hood body 1 is provided with an infrared receiving device corresponding to the infrared emitting device 32 one by one.

[0039] See also Figure 4 The filter 2 includes an external shell, a connecting column 21 and a plurality of blades 22 mounted on the connecting column 21. The filter 2 is connected to the output end of the independent motor 34 through the connecting column 21, and a plurality of smoke holes 23 are evenly arranged on the blades 22.

[0040] See also Figure 5 The wind shield 4 is in the shape of a ring and includes an upper vertical section and a lower inclined section. The angle of the inclined section is 160-163°, the height of the inclined section is 20-23cm, and the height of the vertical section is 7-10cm.

[0041] The fixing bracket 6 includes a plane structure fixedly connected to the inner walls of both sides of the range hood body 1 and a concave curved surface structure in the middle. The concave curved surface structure is sleeved on the outer side of the independent motor 34 to prevent the independent motor 34 from shaking during operation.

[0042] See also Figure 6 The present invention is provided with a dynamic rotating filter 2, and the dynamic rotating filter 2 can be intelligently controlled according to the air intake conditions, and the specific control process is as follows:

[0043] 1) Turn on the range hood power when you start cooking;

[0044] 2) The infrared emitters 32 distributed on the fixed tube emit infrared rays L1, L2, L3...;

[0045] 3) The infrared receiving device distributed on the range hood body receives the infrared light signals L1, L2, L3…;

[0046] 4) The infrared receiving device transmits the signal to the signal processing module for processing, and after processing, a primary signal I1 and a secondary signal I2 are obtained. The primary signal I1 is used to control the start of the independent motor 34, and after the motor is started, the filter screen 2 is driven to rotate;

[0047] 5) The secondary signal I2 is transmitted to the signal judgment mechanism module, and the voting mechanism module votes on the secondary signal I2; when the secondary signal I2 is enhanced, the control signal K is output to reduce the speed of the motor. Similarly, when the secondary signal I2 is weakened, the control signal K is output to increase the speed of the motor.

[0048] 6) When cooking is finished, the power is turned off, the infrared emitting device 32 stops working, the processing module stops outputting the primary signal I1, the independent motor 34 stops running, and the filter 2 stops rotating.

[0049] During the operation of the device, the rotating blades 22 and multiple filters 2 can effectively separate grease and liquid-solid particles with smaller particle sizes such as PM10 and PM2.5. The fan-shaped structure and dynamic rotation of the rotating blades 2 are beneficial to the return of grease, and it is not easy to cause the filter 2 to be blocked. The pressure drop is increased after rotation, which promotes the inhalation of oil smoke.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A range hood with an intelligently controlled dynamic rotating filter, characterized in that The range hood comprises a range hood body (1), a fan-shaped filter (2) and a fan (5), wherein the filter (2) is fixedly mounted on the bottom of the range hood body (1), the fan (5) is embeddedly mounted on the top of the range hood body (1), and a wind shield (4) is provided around the outer side of the filter (2); A fixed pipe assembly (3) and a fixed bracket (6) are fixedly installed inside the range hood body (1); the fixed pipe assembly (3) comprises a pipe body (31), a plurality of infrared emitting devices (32), a fixing plate (33) placed in the middle of the pipe body (31), and an independent motor (34) installed on the fixing plate (33); the length of the pipe body (31) is adjusted according to the lateral width of the range hood; The filter screen (2) comprises an external shell, a connecting column (21), and a plurality of blades (22) mounted on the connecting column (21), wherein the plurality of blades (22) are connected to an output end of an independent motor (34) via the connecting column (21); The blades (22) are evenly provided with a plurality of smoke holes (23); the wind shield (4) is annular, and comprises an upper vertical section and a lower inclined section; the fan (5) is placed obliquely just above the wind shield (4).

2. A range hood with an intelligently controlled dynamic rotating filter according to claim 1, characterized in that The two ends of the tube body (31) are fixed on the inner walls of both sides of the range hood body (1).

3. The range hood with intelligently controlled dynamic rotating filter according to claim 1, characterized in that The infrared emitting device (32) is a circular infrared emitting head, and a plurality of infrared emitting devices (32) are embedded and evenly arranged in the tube body (31) and symmetrically distributed along the independent motor (34).

4. A range hood with an intelligently controlled dynamic rotating filter according to claim 1 or 3, characterized in that The distance between the two infrared emitting devices (32) is 3-5 cmm.

5. The range hood with intelligently controlled dynamic rotating filter according to claim 1, characterized in that The angle of the inclined section of the wind shield (4) is 160-163°, the height H1 of the inclined section is 20-23 cm, and the height H2 of the vertical section is 7-10 cm.

6. The range hood with intelligently controlled dynamic rotating filter according to claim 1, characterized in that The fixed bracket (6) comprises a planar structure fixedly connected to the inner walls on both sides of the range hood body (1) and a concave curved surface structure in the middle, wherein the concave curved surface structure is sleeved on the outside of the independent motor (34) to prevent the independent motor (34) from shaking during operation.

7. The range hood with intelligently controlled dynamic rotating filter according to claim 1, characterized in that The range hood body (1) is provided with an infrared receiving device corresponding one-to-one to the infrared transmitting device (32).

8. The control method of a range hood with an intelligently controlled dynamic rotating filter according to claim 7, characterized in that The specific control steps include the following: 1) Turn on the range hood power when you start cooking; 2) Infrared emitting devices (32) distributed on the fixed tube emit infrared light signals L1, L2, L3, ...; 3) The infrared receiving device distributed on the range hood body receives the infrared light signals L1, L2, L3…; 4) The infrared receiving device transmits the signal to the signal processing module for processing, and after processing, a primary signal I1 and a secondary signal I2 are obtained. The primary signal I1 is used to control the start of the independent motor (34), and after the motor is started, the filter (2) is driven to rotate; 5) The secondary signal I2 is transmitted to the signal judgment mechanism module, and the voting mechanism module votes on the secondary signal I2; when the secondary signal I2 is enhanced, the control signal K is output to reduce the speed of the motor. Similarly, when the secondary signal I2 is weakened, the control signal K is output to increase the speed of the motor. 6) When cooking is finished, the power is turned off, the infrared emitting device (32) stops working, the signal processing module stops outputting the primary signal I1, the independent motor (34) stops running, and the filter (2) stops rotating.

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