Range hood with powerful oil flinger

Abstract

The utility model belongs to the technical field of range hoods, and particularly relates to a range hood with a powerful oil flinger. According to the range hood with the powerful oil flinger, the oil flinger is arranged between the position close to the smoke suction port and the centrifugal fan, and the oil flinger is in transmission connection with the motor of the centrifugal fan, so that when the range hood sucks oil smoke, the oil flinger stirs oil smoke airflow entering through the smoke suction port; oil liquid and water in oil smoke airflow are effectively separated, so that the oil liquid accumulated in the centrifugal fan and the exhaust pipe is greatly reduced, the situation that the oil smoke airflow is easily discharged unsmoothly is avoided, the use reliability of a product is improved, the use experience of a user is good, the oil flinger does not need to be additionally and independently provided with a driving motor, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of range hoods, and in particular relates to a range hood with a powerful oil-throwing pan. Background Art

[0002] Range hoods are very common kitchen appliances in daily life. By starting the range hood, the fumes generated during cooking can be first sucked into the range hood and then further transferred to the outside atmosphere. However, the existing range hoods are only equipped with a centrifugal fan for absorbing fumes. The fumes are absorbed by the centrifugal fan and then discharged through the exhaust pipe. Based on the above fumes discharge method, after long-term use, grease is easily accumulated in the centrifugal fan and the exhaust pipe, causing blockage or affecting the operation of the centrifugal fan, affecting the smooth discharge of fumes. Utility Model Content

[0003] The utility model aims to overcome the problem in existing range hoods that the centrifugal fan and the exhaust duct are prone to oil fume accumulation, resulting in unsmooth oil fume discharge, and to provide a range hood with an oil-spinning tray at the smoke outlet to separate grease and water from the oil fume airflow entering the centrifugal fan, thereby reducing the accumulation of grease in the centrifugal fan and the exhaust duct.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A range hood with a powerful oil-slinging tray comprises a range hood body, a centrifugal fan, an oil-slinging tray and a gear transmission structure; the range hood body is provided with an oil fume chamber located inside, and an inhalation port and an exhaust port connected to the oil fume chamber; the centrifugal fan comprises a volute, an impeller connected to the volute, and a motor, and the output shaft of the motor is drivingly connected to the impeller; at least two oil-slinging trays are provided in the oil fume chamber near the inhalation port, and the oil-slinging trays are respectively drivingly connected to the output shaft of the motor through the gear transmission structure, and air flow ports are provided on the oil-slinging trays; the gear transmission structure comprises a driving wheel and at least two driven wheels, the driving wheel is drivingly connected to the output shaft, the driven wheel is connected to the corresponding oil-slinging tray and is arranged concentrically with the axis of the oil-slinging tray, and each driven wheel is drivingly connected to the driving wheel.

[0006] Compared with the prior art, the utility model of the range hood with a powerful oil flinging pan is provided with an oil flinging pan between the smoke intake port and the centrifugal fan, and the oil flinging pan is connected to the motor transmission of the centrifugal fan. When the range hood performs the oil fume suction operation, the oil fume airflow entering through the smoke intake port is stirred by the oil flinging pan, and the oil and water in the oil fume airflow are effectively separated, thereby greatly reducing the accumulation of oil in the centrifugal fan and the exhaust duct, avoiding the situation that easily leads to unsmooth oil fume airflow discharge, improving the product reliability, and providing a good user experience. In addition, there is no need to set up an independent driving motor for the oil flinging pan, thereby reducing the manufacturing cost.

[0007] Furthermore, the smoke inlet includes two circular smoke inlets that are arranged on the front side of the range hood body and are inclined downward. The two oil-spinning trays are provided. The oil-spinning trays are circular in shape and fit the circular smoke inlet. Through such an arrangement, the smoke airflow entering the smoke inlet through the smoke inlet needs to be filtered by the oil-spinning tray before entering the smoke chamber, thereby ensuring the oil-liquid separation effect.

[0008] Furthermore, the transmission ratio of the driving wheel and the driven wheel is 1:1.5 to 1:3; through such an arrangement, the oil-slinging pan has a higher rotation speed when working, thereby ensuring the oil-liquid separation effect.

[0009] Furthermore, the rotation speed of the oil-slinging plate is 700 to 1500 r / min. By setting it in this way, the rotation speed of the oil-slinging plate is reasonable and the oil-liquid separation effect is good.

[0010] Furthermore, the oil-slinging plate is located at the front side of the air inlet of the volute, and the output shaft of the motor extends out of the front side of the impeller and cooperates with the gear transmission structure. Through this arrangement, the internal structure of the range hood body is compact, occupies a small space, and is easy to install and maintain.

[0011] Furthermore, the centrifugal fan is eccentrically arranged on one side of the center line of the range hood body, and the gear transmission structure also includes a transmission wheel, one of which is a driven wheel meshing with the driving wheel, and the other is a driven wheel meshing with the driving wheel through the transmission wheel; through such an arrangement, the centrifugal fan can be installed in the range hood chamber with an offset according to its structural design, and the two oil-slinging plates can rotate in the same direction, without generating disturbing vortices in the chamber, thereby avoiding affecting the air volume of the incoming air and generating additional noise.

[0012] Alternatively, further, the centrifugal fan is eccentrically arranged on one side of the center line of the range hood body, the driving wheel includes a first driving wheel and a second driving wheel arranged in parallel on the output shaft, and the gear transmission structure also includes a transmission wheel, one of which is engaged with the first driving wheel, and the other is engaged with the second driving wheel through the transmission wheel; through such an arrangement, the centrifugal fan can be installed in the range hood in an offset manner according to its structural design, and the two oil-slinging plates can rotate in the same direction, so that no disturbing vortex will be generated in the cavity, thereby avoiding affecting the air volume of the incoming air and generating additional noise.

[0013] Furthermore, a transmission shaft is provided at the rear side of the oil-slinging pan, the driven wheel is fixedly arranged on the outside of the transmission shaft, and the transmission shaft is coaxially arranged with the oil-slinging pan; by such an arrangement, the oil-slinging pan is ensured to rotate circumferentially around the axis when working.

[0014] Furthermore, the oil-slinging plate includes a plurality of blades and a connecting ring arranged radially, the outer end of each blade is connected to the connecting ring, the blades form a certain angle with the axis of the oil-slinging plate, and air flow openings are formed between adjacent blades; through such an arrangement, the oil can be separated from the blades toward the outer circumference during separation and fall into the oil fume chamber, and finally collected in the oil collecting tank of the range hood.

[0015] Furthermore, the blades are strip-shaped, and the blades are overall in a three-dimensional arc shape, and the diameter of the oil-slinging plate is 200mm to 300mm; through such an arrangement, the oil-slinging plate adopts a three-dimensional, large disc structure, which increases the air intake area and contact area, and more efficiently separates the oil and water in the oil fume gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of a range hood with a powerful oil-throwing tray

[0017] Figure 2 The internal structure diagram of the range hood with a powerful oil-throwing tray

[0018] Figure 3 Schematic diagram of removing the range hood body for a range hood with a powerful oil-throwing tray

[0019] Figure 4 Schematic diagram of removing the range hood body and volute for a range hood with a powerful oil thrower

[0020] Figure 5 Schematic diagram of the oil slinger and driven wheel

[0021] Figure 6 Schematic diagram of centrifugal fan, gear transmission structure and oil-slinging plate

[0022] Explanation of reference numerals: range hood body 1, centrifugal fan 2, oil-spinning tray 3, gear transmission structure 4, range hood chamber 11, suction port 12, exhaust port 13, impeller 21, motor 22, output shaft 23, air flow port 31, driven wheel 42, driving wheel 41, first driving wheel 411, second driving wheel 412, transmission shaft 32, blades 33, connecting ring 34, transmission wheel 43, volute 24, air inlet 241 and air outlet 242. DETAILED DESCRIPTION

[0023] The specific implementation of the present invention is described below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on the present invention.

[0024] See also Figures 1 to 6 The utility model of the range hood with a powerful oil-slinging plate comprises a range hood body 1, a centrifugal fan 2, an oil-slinging plate 3 and a gear transmission structure 4; the range hood body 1 is provided with an oil fume chamber 11 located inside, and a suction port 12 and an exhaust port 13 connected to the oil fume chamber 11, the suction port 12 is located at the front side of the range hood body 1, and the exhaust port 13 is located at the top of the range hood body 1; the centrifugal fan 2 comprises a volute 24 and an impeller 21 and a motor 22 connected to the inner side of the volute 24, and the output shaft 23 of the motor 22 is connected to the impeller 2 1 transmission connection; at least two oil-slinging trays 3 are provided on one side of the oil fume chamber 11 near the smoking port 12, and the oil-slinging trays 3 are respectively transmission-connected to the output shaft 23 of the motor 22 through the gear transmission structure 4, and the oil-slinging tray 3 is provided with an air flow port 31; the gear transmission structure 4 includes a driving wheel 41 and at least two driven wheels 42, the driving wheel 41 is transmission-connected to the output shaft 23, the driven wheel 42 is connected to the corresponding oil-slinging tray 3 and is concentrically arranged with the axis of the oil-slinging tray 3, and each driven wheel 42 is transmission-connected to the driving wheel 41.

[0025] Compared with the prior art, the range hood with a powerful oil-spinning pan of the utility model is provided with an oil-spinning pan 3 between the smoking port 12 and the centrifugal fan 2, and the oil-spinning pan 3 is transmission-connected to the motor 22 of the centrifugal fan 2. When the range hood performs the oil-spinning operation, the oil-spinning pan 3 stirs the oil-spinning airflow entering through the smoking port 12, and effectively separates the oil and water in the oil-spinning airflow, thereby greatly reducing the accumulation of oil in the centrifugal fan 2 and the exhaust duct, avoiding the situation that easily leads to unsmooth oil-spinning airflow, improving the reliability of product use, and providing a good user experience. In addition, the oil-spinning pan 3 does not need to be independently provided with a driving motor 22, thereby reducing the manufacturing cost.

[0026] See also Figures 1 to 6 In one embodiment, the smoke outlet 12 includes two circular smoke outlets 12 arranged at the front side of the range hood body 1 and tilted downward, and the oil-spinning trays 3 are provided with two, and the oil-spinning trays 3 are circular in shape and matched with the circular smoke outlets 12; through such a setting, the smoke airflow entering through the smoke outlet 12 needs to be filtered by the oil-spinning tray 3 before it can enter the smoke chamber 11, thereby ensuring the oil-liquid separation effect.

[0027] In one embodiment, the transmission ratio of the driving wheel 41 and the driven wheel 42 is 1:1.5 to 1:3. By setting it in this way, the oil-slinging pan 3 has a higher rotation speed when working, thereby ensuring the oil-liquid separation effect.

[0028] In one embodiment, the rotation speed of the oil-slinging pan 3 is 700 to 1500 r / min. By setting it in this way, the rotation speed of the oil-slinging pan 3 is reasonable and the oil-liquid separation effect is good.

[0029] See also Figures 2 to 6In one embodiment, the oil-slinging plate 3 is located in front of the air inlet 241 of the volute 24, the output shaft 23 of the motor 22 extends out of the front of the impeller 21 and cooperates with the gear transmission structure 4, and the air outlet 242 of the volute 24 cooperates with the exhaust port 13; through such an arrangement, the internal structure of the range hood body 1 is compact, occupies a small space, and is easy to install and maintain.

[0030] See also Figures 3 to 6 In the present embodiment, the centrifugal fan 2 is eccentrically arranged on one side of the center line of the range hood body 1, the driving wheel 41 includes a first driving wheel 411 and a second driving wheel 412 arranged in parallel on the output shaft 23, and the gear transmission structure 4 also includes a transmission wheel 43, wherein one driven wheel 42 is meshed with the first driving wheel 411, and the other driven wheel 42 is meshed with the second driving wheel 412 through the transmission wheel 43; by such an arrangement, the centrifugal fan 2 can be offsetly installed in the range hood chamber 11 according to its structural design, and the two oil-slinging pans 3 can rotate in the same direction, and no disturbing vortex will be generated in the cavity, thereby avoiding affecting the air volume of the incoming air and generating additional noise.

[0031] In an alternative embodiment (not shown), the centrifugal fan 2 is eccentrically arranged on one side of the center line of the range hood body 1, and the gear transmission structure 4 also includes a transmission wheel 43, wherein one driven wheel 42 is meshed with the driving wheel 41, and the other driven wheel 42 is meshed with the driving wheel 41 through the transmission wheel 43; through such an arrangement, the centrifugal fan 2 can be installed in the range hood chamber 11 in an offset manner according to its structural design, and the two oil-slinging trays 3 can rotate in the same direction, and no disturbing vortex will be generated in the cavity, thereby avoiding affecting the air volume of the incoming air and generating additional noise.

[0032] See also Figures 3 to 6 In one embodiment, a transmission shaft 32 is provided at the rear side of the oil-slinging pan 3, the driven wheel 42 is fixedly arranged on the outside of the transmission shaft 32, and the transmission shaft 32 is coaxially arranged with the oil-slinging pan 3; by such an arrangement, it is ensured that the oil-slinging pan 3 rotates circumferentially around the axis when working.

[0033] See also Figures 1 to 6 In one embodiment, the oil-slinging plate 3 includes a plurality of blades 33 and a connecting ring 34 arranged in a radial direction, the outer end of each blade 33 is connected to the connecting ring 34, the blade 33 forms a certain angle with the axis of the oil-slinging plate 3, and an air flow opening 31 is formed between adjacent blades 33; through such an arrangement, the oil can be separated from the blade 33 toward the outer circumference during separation and fall into the oil fume chamber 11, and finally collected in the oil collecting tank of the range hood.

[0034] In one embodiment, the blades 33 are strip-shaped, and the blades 33 are in a three-dimensional arc shape as a whole. The diameter of the oil-slinging plate 3 is 200 mm to 300 mm. Through such an arrangement, the oil-slinging plate 3 adopts a three-dimensional, large disc structure, which increases the air intake area and contact area, and more efficiently separates the oil and water in the oil fume gas.

[0035] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A range hood with a powerful oil-throwing tray, characterized in that: include: The range hood body is provided with a range hood chamber located inside, and a suction port and an exhaust port communicating with the range hood chamber; The centrifugal fan comprises a volute, an impeller connected to the volute, and a motor, wherein the output shaft of the motor is drivingly connected to the impeller; There are at least two oil-slinging pans located in the oil fume chamber near the smoking port. The oil-slinging pans are respectively connected to the output shaft of the motor through a gear transmission structure, and air flow ports are provided on the oil-slinging pans. The gear transmission structure includes a driving wheel and at least two driven wheels. The driving wheel is drivingly connected to the output shaft. The driven wheels are connected to the corresponding oil-slinging plate and are arranged concentrically with the axis of the oil-slinging plate. Each driven wheel is drivingly connected to the driving wheel.

2. The range hood with a powerful oil-throwing tray according to claim 1, characterized in that: The inlet opening comprises two circular inlet openings which are arranged at the front side of the range hood body and are inclined downward. Two oil-spinning pans are provided, and the oil-spinning pans are circular in shape and matched with the circular inlet openings.

3. The range hood with a powerful oil-throwing tray according to claim 1, characterized in that: The transmission ratio of the driving wheel and the driven wheel is 1:1.5 to 1:

3.

4. The range hood with a powerful oil-throwing tray according to claim 1, characterized in that: The rotation speed of the oil-slinging pan is 700 to 1500 r / min.

5. The range hood with a powerful oil-throwing tray according to claim 1, characterized in that: The oil-slinging plate is located at the front side of the air inlet of the volute, and the output shaft of the motor extends out of the front side of the impeller and is in transmission cooperation with the gear transmission structure.

6. The range hood with a powerful oil-throwing tray according to any one of claims 1 to 5, characterized in that: The centrifugal fan is eccentrically arranged on one side of the center line of the range hood body, and the gear transmission structure further comprises a transmission wheel, wherein one driven wheel is meshed with the driving wheel, and the other driven wheel is meshed with the driving wheel through the transmission wheel; Alternatively, the centrifugal fan is eccentrically arranged on one side of the center line of the range hood body, the driving wheel includes a first driving wheel and a second driving wheel arranged in parallel on the output shaft, and the gear transmission structure also includes a transmission wheel, one of the driven wheels is meshed with the first driving wheel, and the other driven wheel is meshed with the second driving wheel through the transmission wheel.

7. The range hood with a powerful oil-throwing tray according to claim 1, characterized in that: A transmission shaft is arranged at the rear side of the oil-slinging pan, the driven wheel is fixedly arranged at the outer side of the transmission shaft, and the transmission shaft and the oil-slinging pan are arranged coaxially.

8. The range hood with a powerful oil-throwing tray according to any one of claims 1 to 5 or 7, characterized in that: The oil-slinging plate comprises a plurality of blades and a connecting ring arranged in radial direction, the outer end of each blade is connected to the connecting ring, the blade forms a certain angle with the axis of the oil-slinging plate, and air flow openings are formed between adjacent blades.

9. The range hood with a powerful oil-throwing tray according to claim 8, characterized in that: The blades are in strip shape, and the blades are in a three-dimensional arc shape as a whole.

10. The range hood with a powerful oil-throwing tray according to claim 8, characterized in that: The oil-slinging plate has a diameter of 200 mm to 300 mm.

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