CN210197395U

CN210197395U - Range hood with self-cleaning function

Info

Publication number: CN210197395U
Application number: CN201920819212.0U
Authority: CN
Inventors: Tao Hu; 胡涛; Feng He; 贺峰; Bin Li; 李斌
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-03-27
Anticipated expiration: 2029-05-31

Abstract

The utility model relates to a range hood with self-cleaning function, fan in including the casing and locating the casing, the fan has the spiral case and can locate the impeller in the spiral case with rotating, its characterized in that: the spiral case is internally provided with a heating pipe which is arranged close to a rear cover plate of the spiral case and can heat the spiral case and the surface of the impeller so as to carbonize oil stains, and the casing is also provided with a cleaning pipe which can extend into the spiral case and spray cleaning media to the inner wall of the spiral case and the impeller. The utility model discloses set up the heating pipe in the spiral case, need clean the messenger to range hood, the heating pipe circular telegram makes spiral case inside including the impeller heat up to about 400 ℃, can make the adhesion in the stubborn greasy dirt carbonization on spiral case inner wall and impeller surface, then to the heating pipe outage, spray the cleaning medium on to spiral case inner wall and impeller through the scavenge pipe, wash the greasy dirt of carbonization can, because the greasy dirt after the carbonization is convenient for peel off from spiral case and impeller, improved the cleaning performance greatly.

Description

Range hood with self-cleaning function

Technical Field

The utility model relates to a range hood with self-cleaning function.

Background

In the process of sucking indoor oil fume gas, the surfaces of an impeller, a volute and the like of the range hood can adsorb a large amount of grease and oil stains. If the grease and oil stains are not cleaned for a long time, the grease and oil stains are oxidized and air-dried and then are difficult to clean, and the accumulation of excessive grease and oil stains on the impeller causes the increase of load and the increase of noise, so that the oil smoke absorption effect is reduced. Therefore, the inside of the range hood needs to be cleaned. The back is unpack apart the lampblack absorber to traditional clean mode, adopt water or the manual washing of sanitizer, but such clean mode not only intensity of labour is high, the complex operation is wasted time and energy, the structure of present lampblack absorber is more complicated moreover, this kind of clean mode is unsuitable to the use more, after a lot of dismouting, the whole leakproofness of lampblack absorber also can receive the influence, the oil smoke is excessive in the gap of lampblack absorber is followed easily, influence the oil absorption cigarette effect and the polluted kitchen environment of lampblack absorber.

In order to solve the problems, some range hoods capable of automatically cleaning are provided at present, and the range hoods are mainly cleaned by spraying high-temperature steam or washing liquid on a volute and an impeller. However, it is difficult to achieve the desired cleaning effect for the oil stains that have been oxidized and air-dried on the surfaces of the volute and the impeller.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, thereby provide one kind and can get rid of the range hood that has self-cleaning function of stubborn greasy dirt improvement cleaning effect through high temperature carbonization mode.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood with self-cleaning function, includes the casing and locates the fan in the casing, the fan has the spiral case and can locate the impeller in the spiral case with rotating, its characterized in that: the spiral case is internally provided with a heating pipe which is arranged close to a rear cover plate of the spiral case and can heat the spiral case and the surface of the impeller so as to carbonize oil stains, and the casing is also provided with a cleaning pipe which can extend into the spiral case and spray cleaning media to the inner wall of the spiral case and the impeller.

Preferably, the heating pipe is annular and fixed on the inner wall of the volute rear cover plate, the heating pipe is connected with the power supply electric signal, and the outer edge of the heating pipe is arranged close to the inner edge of the impeller. By adopting the structure, the inner wall of the volute and the impeller can be rapidly heated to carbonize the adhered stubborn oil stains.

Preferably, the cleaning pipe is arranged on the front side of the volute and extends along the radial direction of the volute air inlet, the first end of the cleaning pipe is connected with the cleaning source, and the second end of the cleaning pipe extends into the volute from the middle part of the volute air inlet. By adopting the structure, the carbonized oil stains on the inner wall of the volute and the surface of the impeller can be washed by the cleaning medium after the oil stains are carbonized.

Further preferably, the second end of the cleaning pipe is connected with a nozzle assembly which can enable the cleaning liquid to gradually diffuse in bulk along the liquid outlet direction. The structure is favorable for enlarging the spraying area of the cleaning medium and improving the cleaning effect and the cleaning efficiency.

In order to facilitate connection and assembly, the nozzle assembly comprises a connecting seat and a spray head, a first liquid guide channel is arranged at the second end of the cleaning pipe along the axial direction of the impeller, a second liquid guide channel is arranged on the connecting seat in parallel with the first liquid guide channel, a third liquid guide channel which extends along the radial direction and is communicated with the first liquid guide channel is arranged on the outer wall of the connecting seat, a liquid inlet hole for cleaning media to enter the second liquid guide channel from the third liquid guide channel is formed in the outer wall of the connecting seat, and the spray head is connected to the liquid outlet end of the second liquid guide channel and arranged towards the rear cover plate of the volute.

Preferably, the middle part of the spray head is provided with a nozzle which is arranged along the axial direction, the nozzle is provided with a liquid inlet section, a flow guide section and a liquid outlet section which are mutually connected along the liquid outlet direction, the inner diameter of the liquid inlet section is gradually reduced along the liquid outlet direction, the inner diameter of the flow guide section is kept unchanged along the liquid outlet direction, and the inner diameter of the liquid outlet section is gradually increased along the liquid outlet direction. The structure is favorable for enlarging the spraying area of the cleaning medium and improving the cleaning effect and the cleaning efficiency.

In order to facilitate conveying of the cleaning medium, a liquid storage tank for containing the cleaning medium and a water pump capable of pumping the cleaning medium in the liquid storage tank into the cleaning pipe are arranged on the shell.

As an improvement, an evaporation water tank which is positioned below the volute and can evaporate water is arranged in the shell, an opening for discharging washed waste liquid is formed in the bottom of the volute, and the opening is connected with the evaporation water tank through a liquid guide pipe. The evaporation water tank is provided with a steam output port which is arranged upwards, a discharge port which is used for steam to pass through and discharge to the position near the volute air inlet is formed in the position, corresponding to the steam output port, of the shell, and the evaporation water tank is internally provided with a replaceable filter screen which is used for filtering carbonized oil stains and the like. By adopting the structure, the waste water for cleaning the volute and the impeller can be evaporated and then discharged by the fan, so that the volute and the impeller after cleaning can be cleaned again by utilizing the steam, and the waste liquid can be conveniently treated.

Compared with the prior art, the utility model has the advantages of: the utility model discloses set up the heating pipe in the spiral case, need clean the messenger to range hood, the heating pipe circular telegram makes spiral case inside including the impeller heat up to about 400 ℃, can make the adhesion in the stubborn greasy dirt carbonization on spiral case inner wall and impeller surface, then to the heating pipe outage, spray the cleaning medium on to spiral case inner wall and impeller through the scavenge pipe, wash the greasy dirt of carbonization can, because the greasy dirt after the carbonization is convenient for peel off from spiral case and impeller, improved the cleaning performance greatly.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view (hiding part of the housing) of FIG. 1;

FIG. 3 is a schematic view of the structure of FIG. 2 from another angle;

fig. 4 is an enlarged schematic view of a portion a in fig. 2.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, the range hood with a self-cleaning function in this embodiment includes a housing 1 and a fan 2 disposed in the housing 1, the fan 2 has a volute 21 and an impeller 22 rotatably disposed in the volute 21, a heating pipe 3 disposed in the volute 21 and close to a rear cover plate 211 of the volute 21 and capable of heating the surfaces of the volute 21 and the impeller 22 to carbonize oil contamination is disposed in the volute 21, and a cleaning pipe 4 capable of extending into the volute 21 and spraying a cleaning medium to the inner wall of the volute 21 and the impeller 22 is further disposed on the housing 1. The heating pipe 3 of the embodiment is annular and is connected with the power supply electric signal, the motor 23 of the fan 2 is fixed in the middle of the rear cover plate 211 of the volute 21, the heating pipe 3 is arranged around the motor 23 and fixed on the rear cover plate 211 of the volute 21, and the outer edge of the heating pipe 3 is arranged close to the inner edge of the impeller 22.

In this embodiment, the cleaning pipe 4 is disposed at the front side of the scroll casing 21 and extends along the radial direction of the air inlet 212 of the scroll casing 21, the first end of the cleaning pipe 4 is connected to the cleaning source, and the second end of the cleaning pipe 4 extends into the scroll casing 21 from the middle of the air inlet 212 of the scroll casing 21, so as to wash the carbonized oil stains on the inner wall of the scroll casing 21 and the surface of the impeller 22 with the cleaning medium after the oil stains are carbonized. The second end of the cleaning pipe 4 is connected with a nozzle component 5 which can enable the cleaning liquid to gradually diffuse in bulk along the liquid outlet direction, and the structure is favorable for enlarging the spraying area of the cleaning medium and improving the cleaning effect and the cleaning efficiency. The nozzle assembly 5 includes a connecting seat 51 and a nozzle 52, the second end of the cleaning tube 4 has a first liquid guiding channel 41 arranged along the axial direction of the impeller 22, the connecting seat 51 has a second liquid guiding channel 511 arranged in parallel with the first liquid guiding channel 41, a third liquid guiding channel 512 extending along the radial direction and communicated with the first liquid guiding channel 41 is provided on the outer wall of the connecting seat 51, a liquid inlet hole 513 for the cleaning medium to enter the second liquid guiding channel 511 from the third liquid guiding channel 512 is provided on the outer wall of the connecting seat 51, and the nozzle 52 is connected to the liquid outlet end of the second liquid guiding channel 511 and arranged towards the back cover plate 211 of the volute 21. The middle part of the spray head 52 is provided with a spray nozzle 520 which is arranged along the axial direction, the spray nozzle 520 is provided with a liquid inlet section 521, a flow guide section 522 and a liquid outlet section 523 which are mutually connected along the liquid outlet direction, the inner diameter of the liquid inlet section 521 is gradually reduced along the liquid outlet direction, the inner diameter of the flow guide section 522 is kept unchanged along the liquid outlet direction, and the inner diameter of the liquid outlet section 523 is gradually increased along the liquid outlet direction. The structure is favorable for enlarging the spraying area of the cleaning medium and improving the cleaning effect and the cleaning efficiency. In order to facilitate conveying of the cleaning medium, a liquid storage tank 6 for containing the cleaning medium and a water pump 7 capable of pumping the cleaning medium in the liquid storage tank 6 into the cleaning pipe 4 are arranged on the housing 1.

The casing 1 of the embodiment is provided with the evaporation water tank 8 which is positioned below the volute 21 and can evaporate water, the evaporation water tank 8 can absorb heat generated by combustion of the cooker to heat water in the evaporation water tank, and a separate heating component can be provided as long as water entering the evaporation water tank is converted into steam to be output. The bottom of the volute 21 is opened with an opening 213 for discharging the waste liquid after washing, and the opening 213 is connected with the evaporation water tank 8 through a liquid guide tube 214. The evaporation water tank 8 is provided with a steam output port 81 arranged upwards, a discharge port 11 for steam to pass through and be arranged near an air inlet 212 of the volute 21 is formed in the shell 1 at the position corresponding to the steam output port 81, and the evaporation water tank 8 is internally provided with a replaceable filter screen which is used for filtering oil carbide stain and the like. By adopting the structure, the waste water for cleaning the volute 21 and the impeller 22 can be evaporated and then discharged through the fan 2, so that the cleaned volute 21 and the impeller 22 can be cleaned again by utilizing the steam, and the waste liquid can be conveniently treated.

The range hood needs to be cleaned, the heating pipe 3 is electrified to heat the interior of the volute 21 including the impeller 22 to about 400 ℃, so that stubborn oil stains adhered to the inner wall of the volute 21 and the surface of the impeller 22 can be carbonized, then the heating pipe 3 is powered off, cleaning media are sprayed on the inner wall of the volute 21 and the impeller 22 through the cleaning pipe 4, the carbonized oil stains are washed away, and the carbonized oil stains are conveniently stripped from the volute 21 and the impeller 22, so that the cleaning effect is greatly improved; waste liquid for washing the volute 21 and the impeller 22 is discharged into the evaporation water tank 8 through an opening 213 at the bottom of the volute 21, the evaporation water tank 8 gasifies the water and then discharges the gasified water to the vicinity of the air inlet 212 through the discharge port 11, the steam is discharged along with the fan 2, the waste water is convenient to treat, dirt for cleaning the volute 21 and the impeller 22 can be adhered to a filter screen of the evaporation water tank 8, and the filter screen can be replaced periodically.

Claims

1. The utility model provides a range hood with self-cleaning function, includes casing (1) and locates fan (2) in casing (1), fan (2) have spiral case (21) and can locate impeller (22) in spiral case (21) with rotating, its characterized in that: the oil stain cleaning device is characterized in that a heating pipe (3) which is arranged close to a rear cover plate (211) of the volute (21) and can heat the surfaces of the volute (21) and the impeller (22) to carbonize oil stains is arranged in the volute (21), and a cleaning pipe (4) which can extend into the volute (21) and spray cleaning media to the inner wall of the volute (21) and the impeller (22) is further arranged on the shell (1).

2. The range hood with self-cleaning function of claim 1, wherein: the heating pipe (3) is annular and is fixed on the inner wall of a rear cover plate (211) of the volute (21), the heating pipe (3) is connected with a power supply electric signal, and the outer edge of the heating pipe (3) is arranged close to the inner edge of the impeller (22).

3. The range hood with self-cleaning function of claim 1, wherein: the cleaning pipe (4) is arranged on the front side of the volute (21) and extends along the radial direction of the air inlet (212) of the volute (21), the first end of the cleaning pipe (4) is connected with a cleaning source, and the second end of the cleaning pipe (4) extends into the volute (21) from the middle part of the air inlet (212) of the volute (21).

4. The range hood with self-cleaning function according to claim 3, wherein: and the second end of the cleaning pipe (4) is connected with a nozzle component (5) which can enable the cleaning liquid to gradually diffuse in bulk along the liquid outlet direction.

5. The range hood with self-cleaning function according to claim 4, wherein: the nozzle assembly (5) comprises a connecting seat (51) and a spray head (52), a first liquid guide channel (41) axially arranged along an impeller (22) is arranged at the second end of the cleaning pipe (4), the connecting seat (51) is provided with a second liquid guide channel (511) in parallel arrangement with the first liquid guide channel (41), a third liquid guide channel (512) extending along the radial direction and communicated with the first liquid guide channel (41) is arranged on the outer wall of the connecting seat (51), a liquid inlet hole (513) for cleaning media to enter the second liquid guide channel (511) from the third liquid guide channel (512) is formed in the outer wall of the connecting seat (51), and the spray head (52) is connected to the liquid outlet end of the second liquid guide channel (511) and arranged towards a rear cover plate (211) of the volute (21).

6. The range hood with self-cleaning function according to claim 5, wherein: the middle part of shower nozzle (52) is opened has spout (520) of following the axial and arranging, and this spout (520) have along going out liquid direction liquid inlet section (521), water conservancy diversion section (522) and play liquid section (523) that link up each other, the internal diameter of liquid inlet section (521) reduces along going out the liquid direction gradually, the internal diameter of water conservancy diversion section (522) keeps unchangeable along going out the liquid direction, the internal diameter of going out liquid section (523) increases along going out the liquid direction gradually.

7. The range hood with self-cleaning function according to any one of claims 3 to 6, wherein: the cleaning device is characterized in that a liquid storage tank (6) for storing a cleaning medium and a water pump (7) capable of pumping the cleaning medium in the liquid storage tank (6) into the cleaning pipe (4) are arranged on the shell (1).

8. The range hood with self-cleaning function as claimed in any one of claims 1 to 6, wherein: be provided with in casing (1) and be located spiral case (21) below and can carry out the evaporation water tank (8) that evaporate to water, spiral case (21) bottom is seted up can supply waste liquid exhaust opening (213) after the washing, this opening (213) through catheter (214) with evaporation water tank (8) are connected, evaporation water tank (8) have steam delivery outlet (81) of arranging up, it has the steam that supplies steam to pass and reaches near discharge port (11) near spiral case (21) air intake (212) side by side to open in corresponding steam delivery outlet (81) on casing (1).