CN108709215B - Cleaning device and smoke exhaust ventilator with same - Google Patents

Cleaning device and smoke exhaust ventilator with same Download PDF

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Publication number
CN108709215B
CN108709215B CN201810837233.5A CN201810837233A CN108709215B CN 108709215 B CN108709215 B CN 108709215B CN 201810837233 A CN201810837233 A CN 201810837233A CN 108709215 B CN108709215 B CN 108709215B
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CN
China
Prior art keywords
cleaner
detergent
cleaning device
nozzle
outlet
Prior art date
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Active
Application number
CN201810837233.5A
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Chinese (zh)
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CN108709215A (en
Inventor
方云超
秦兴元
杨星星
季俊生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
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Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
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Application filed by Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd filed Critical Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority to CN201810837233.5A priority Critical patent/CN108709215B/en
Publication of CN108709215A publication Critical patent/CN108709215A/en
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Publication of CN108709215B publication Critical patent/CN108709215B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2057—Removing cooking fumes using a cleaning liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

The invention discloses a cleaning device and a range hood with the same. The cleaning device includes: a source of cleaning agent; a detergent nozzle having a detergent inlet communicating with a detergent outlet of the detergent source and a plurality of detergent spray holes spaced apart along a length direction of the detergent nozzle; and a slider movably provided in the cleaner nozzle along a length direction of the cleaner nozzle, the slider capping a portion of the plurality of cleaner spray holes. The cleaning device provided by the embodiment of the invention has the advantages of good cleaning effect, thorough cleaning, comprehensive cleaning, simple structure, low assembly difficulty, low manufacturing cost and the like.

Description

Cleaning device and smoke exhaust ventilator with same
Technical Field
The invention relates to the field of household appliances, in particular to a cleaning device and a range hood with the cleaning device.
Background
After the range hood is used for a period of time, grease can be adhered to the wind wheel. The grease adhered to the wind wheel can increase the weight of the wind wheel, so that the load of a motor for driving the wind wheel to rotate is increased, and the service life of the motor is reduced. The related art can utilize the jet steam or the cleaning agent spray pipe to clean the wind wheel so as to remove grease on the wind wheel. In order to completely remove grease on the wind wheel, a driving device is required to drive the spray pipe to move along the axial direction of the wind wheel.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a cleaning device and a range hood with the same.
In order to achieve the above object, a first aspect of the present invention provides a cleaning device comprising: a source of cleaning agent; a detergent nozzle having a detergent inlet communicating with a detergent outlet of the detergent source and a plurality of detergent spray holes spaced apart along a length direction of the detergent nozzle; and a slider movably provided in the cleaner nozzle in a length direction of the cleaner nozzle, the slider capping a portion of the plurality of cleaner spray holes;
the cleaning device comprises a cleaning agent spray pipe, a cleaning device body, a sliding block, a cleaning device body and a cleaning device, wherein the sliding block is a magnetic piece or made of ferromagnetic materials, and the cleaning device body further comprises a first electromagnet which is matched with the sliding block so as to drive the sliding block to move in the cleaning agent spray pipe.
The cleaning device provided by the embodiment of the invention has the advantages of good cleaning effect, thorough cleaning, comprehensive cleaning, simple structure, low assembly difficulty and low manufacturing cost.
Preferably, the first and second ends of the detergent nozzle, which are opposite in the length direction thereof, are opened so as to form two detergent inlets, the cleaning device further comprising: a first cleaner delivery tube, a first end of the first cleaner delivery tube communicating with the cleaner outlet of the cleaner source, a second end of the first cleaner delivery tube communicating with the first end of the cleaner nozzle; a second cleaner delivery tube, a first end of the second cleaner delivery tube communicating with the cleaner outlet of the cleaner source, a second end of the second cleaner delivery tube communicating with the second end of the cleaner nozzle; and a first pressure regulating valve and a second pressure regulating valve, wherein the first pressure regulating valve is arranged on the first cleaning agent conveying pipe, and the second pressure regulating valve is arranged on the second cleaning agent conveying pipe.
Preferably, the first and second ends of the cleaner nozzle, which are opposite in the length direction thereof, are open so as to form two cleaner inlets, the cleaning device further comprising a three-way valve having a first inlet communicating with the cleaner outlet of the cleaner source, a first cleaner outlet communicating with the first end of the cleaner nozzle, and a second cleaner outlet communicating with the second end of the cleaner nozzle.
Preferably, the three-way valve includes: a valve body having the first inlet, the first detergent outlet, and the second detergent outlet, the first inlet being located between the first detergent outlet and the second detergent outlet in a first direction; and a spool movably provided in the valve body in the first direction between a closed position, a first open position, and a second open position, the spool having a first cover portion and a second cover portion, wherein the first inlet is located between the first cover portion and the second cover portion of the spool in the closed position in the first direction, the first cover portion of the spool in the closed position covers the first detergent outlet, the second cover portion of the spool in the closed position covers the second detergent outlet, the first cover portion of the spool in the first open position covers the second detergent outlet or is located between the first inlet and the second detergent outlet in the first direction, the first cover portion of the spool in the second open position is located between the first inlet and the first outlet in the first direction, and the first cover portion of the spool in the second open position is located between the first inlet and the first outlet in the first direction.
Preferably, the valve element is a magnetic element or is made of ferromagnetic material, and the cleaning device further comprises a second electromagnet cooperating with the valve element to move the valve element between the closed position, the first open position and the second open position.
Preferably, the length direction of the slider coincides with the length direction of the detergent nozzle, and the ratio of the length of the detergent nozzle to the length of the slider is greater than 2 so that at least a portion of at least one of the detergent spray holes is always exposed.
Preferably, the cleaning device further comprises a first limiting member and a second limiting member which are arranged in the cleaning agent spray pipe at intervals along the length direction of the cleaning agent spray pipe, wherein the sliding block and each cleaning agent spray hole are positioned between the first limiting member and the second limiting member along the length direction of the cleaning agent spray pipe.
Preferably, the source of cleaning agent is a steam generator or a cleaning agent cartridge.
A second aspect of the present invention provides a range hood comprising: a wind wheel; and a cleaning device according to the second aspect of the present invention, at least a portion of the cleaning agent nozzle of the cleaning device extending in an axial direction of the wind wheel, the at least a portion of the cleaning agent nozzle cooperating with the wind wheel so as to clean the wind wheel.
The range hood provided by the embodiment of the invention has the advantages of good cleaning effect, thorough cleaning, comprehensive cleaning, simple structure, low assembly difficulty and low manufacturing cost.
Drawings
Fig. 1 is a schematic structural view of a range hood according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a volute assembly of a range hood according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a heating pipe of the range hood according to an embodiment of the present invention;
fig. 4 is a partial structural schematic view of a range hood according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a heat conductive member of a range hood according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a heat conductive member of the range hood according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a cleaning device of a range hood according to an embodiment of the present invention;
fig. 8 is a partial structural view of a cleaning device of a range hood according to an embodiment of the present invention;
fig. 9 is a partial structural view of a cleaning device of a range hood according to an embodiment of the present invention;
fig. 10 is a schematic structural view of a three-way valve of the range hood according to an embodiment of the present invention, with a valve spool in a closed position;
fig. 11 is a schematic structural view of a three-way valve of the range hood according to an embodiment of the present invention, with a valve spool in a first open position;
Fig. 12 is a schematic structural view of a three-way valve of the range hood according to an embodiment of the present invention, with the valve spool in a second open position;
fig. 13 is a partial structural schematic view of a range hood according to an embodiment of the present invention;
fig. 14 is a partial structural schematic view of a steam generator of the range hood according to the embodiment of the present invention;
fig. 15 is a partial structural schematic view of a range hood according to an embodiment of the present invention;
fig. 16 is a partial structural schematic view of a steam generator of the range hood according to the embodiment of the present invention;
fig. 17 is a partial structural schematic view of a range hood according to an embodiment of the present invention;
fig. 18 is a partial structural schematic view of a steam generator of a range hood according to an embodiment of the present invention;
fig. 19 is a partial structural schematic view of a range hood according to an embodiment of the present invention;
fig. 20 is a schematic structural view of a volute of a range hood according to an embodiment of the present invention;
fig. 21 is a partial structural schematic view of a range hood according to an embodiment of the present invention;
fig. 22 is a schematic structural view of a heat conductive member of the range hood according to the embodiment of the present invention;
fig. 23 is a schematic structural view of a heat conductive member of a range hood according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
A cleaning device 50 according to an embodiment of the present invention is described below with reference to the drawings. As shown in fig. 7 to 12, the cleaning device 50 according to the embodiment of the present invention includes a cleaner source 510, a cleaner nozzle 520, and a slider 530.
The detergent spray pipe 520 has a detergent inlet communicating with a detergent outlet of the detergent source 510 and a plurality of detergent spray holes 521, wherein the plurality of detergent spray holes 521 are spaced apart along a length direction of the detergent spray pipe 520. A slider 530 is movably provided in the cleaning agent nozzle 520 in a length direction of the cleaning agent nozzle 520, the slider 530 covering a portion of the plurality of cleaning agent injection holes 521.
For a complete cleaning of the rotor, the length of the cleaning agent nozzle may be made substantially equal to the axial length of the rotor. However, the pressure of the cleaning agent sprayed by the cleaning agent spray pipe is low, so that grease on the wind wheel cannot be effectively and thoroughly cleaned.
Therefore, the prior art shortens the length of the cleaning agent spray pipe so as to reduce the number of cleaning agent spray holes, so that the pressure of the cleaning agent sprayed by the cleaning agent spray pipe is higher, and the driving device is used for driving the cleaning agent spray pipe to move along the axial direction of the wind wheel so as to clean the wind wheel comprehensively. However, since the driving device needs to be added, the range hood is complicated in structure, difficult to assemble and high in manufacturing cost.
According to the cleaning device 50 of the embodiment of the present invention, the slider 530 movable in the length direction of the cleaning agent spray pipe 520 is provided in the cleaning agent spray pipe 520, and the slider 530 can cover a portion of the plurality of cleaning agent spray holes 521, so that only a portion of the plurality of cleaning agent spray holes 521 of the cleaning agent spray pipe 520 spray the cleaning agent to the wind wheel 30 when the wind wheel 30 is cleaned by the cleaning device 50, thereby ensuring that the pressure of the cleaning agent sprayed by the cleaning agent spray pipe 520 is large.
Also, since the slider 530 may be moved in the length direction of the detergent spray pipe 520, different detergent spray holes 521 may be capped by moving the slider 530, that is, detergent may be sprayed to the wind wheel 30 through the different detergent spray holes 521, so that the same effect as that of moving the detergent spray pipe 520 may be achieved. The wind wheel 30 can thus be thoroughly cleaned while ensuring that the pressure of the cleaning agent sprayed from the cleaning agent spraying pipe 520 is high. In other words, the cleaning device 50 can clean the wind wheel 30 entirely without providing a driving device for driving the cleaning agent nozzle 520 to move.
Therefore, the cleaning device 50 according to the embodiment of the invention has the advantages of good cleaning effect, thorough cleaning, comprehensive cleaning, simple structure, low assembly difficulty, low manufacturing cost and the like.
As shown in fig. 1-23, in some embodiments of the invention, the hood 1 may include a fume collection hood 80, a fume extraction hood 70, a volute 20, a wind wheel 30, and a cleaning device 50. The fume extractor hood 70 may be disposed on the fume extractor hood 80, the volute 20 may be disposed within the fume extractor hood 70, and the wind wheel 30 may be disposed within the volute 20.
Cleaning device 50 may include a cleaner source 510, a cleaner nozzle 520, and a slider 530. The cleaner nozzle 520 may clean the scroll casing 20 and the wind wheel 30 to remove grease from the scroll casing 20 and the wind wheel 30. For example, the cleaner nozzle 520 may spray steam or a cleaning agent to remove grease from the scroll case 20 and the wind wheel 30 using the steam or the cleaning agent.
As shown in fig. 8 and 9, the detergent spray pipe 520 may have a detergent inlet and a plurality of detergent spray holes 521, the detergent inlet of the detergent spray pipe 520 may communicate with the detergent outlet of the detergent source 510, and the plurality of detergent spray holes 521 may be spaced apart along the length direction of the detergent spray pipe 520.
Preferably, the plurality of detergent injection holes 521 may be disposed at equal intervals, whereby a detergent (e.g., steam or a cleaning agent) may be injected more uniformly, so that the wind wheel 30 may be cleaned more uniformly to remove grease on the wind wheel 30 more uniformly.
A slider 530 may be movably provided in the cleaning agent spray pipe 520 along a length direction of the cleaning agent spray pipe 520, and the slider 530 may cover a portion of the plurality of cleaning agent spray holes 521. In other words, the slider 530 cannot cover all the detergent injection holes 521.
As shown in fig. 19, at least a portion of cleaner nozzle 520 may extend in the axial direction of wind wheel 30, i.e., the length of the at least a portion of cleaner nozzle 520 coincides with the axial direction of wind wheel 30. The at least a portion of the cleaner nozzle 520 may cooperate with the wind wheel 30 to spray a cleaner onto the wind wheel 30 so that the wind wheel 30 may be cleaned (how the volute 20 is cleaned will be described in detail below).
Preferably, slider 530 may be movably disposed within the at least a portion of cleaner nozzle 520. The length of the at least a portion of cleaner nozzle 520 may be equal to the axial length of wind wheel 30 (i.e., the length or dimension of wind wheel 30 in its axial direction), and the length of the at least a portion of cleaner nozzle 520 may also be slightly greater or slightly less than the axial length of wind wheel 30.
For a complete cleaning of the rotor, the length of the cleaning agent nozzle may be made substantially equal to the axial length of the rotor. However, the pressure of the cleaning agent sprayed by the cleaning agent spray pipe is low, so that grease on the wind wheel cannot be effectively and thoroughly cleaned.
Therefore, the prior art shortens the length of the cleaning agent spray pipe so as to reduce the number of cleaning agent spray holes, so that the pressure of the cleaning agent sprayed by the cleaning agent spray pipe is higher, and the driving device is used for driving the cleaning agent spray pipe to move along the axial direction of the wind wheel so as to clean the wind wheel comprehensively. However, since the driving device needs to be added, the range hood is complicated in structure, difficult to assemble and high in manufacturing cost.
According to the cleaning device 50 of the embodiment of the present invention, the slider 530 movable in the length direction of the cleaning agent spray pipe 520 is provided in the cleaning agent spray pipe 520, and the slider 530 can cover a portion of the plurality of cleaning agent spray holes 521, so that only a portion of the plurality of cleaning agent spray holes 521 of the cleaning agent spray pipe 520 spray the cleaning agent to the wind wheel 30 when the wind wheel 30 is cleaned by the cleaning device 50, thereby ensuring that the pressure of the cleaning agent sprayed by the cleaning agent spray pipe 520 is large.
Also, since the slider 530 may be moved in the length direction of the detergent spray pipe 520, different detergent spray holes 521 may be capped by moving the slider 530, that is, detergent may be sprayed to the wind wheel 30 through the different detergent spray holes 521, so that the same effect as that of moving the detergent spray pipe 520 may be achieved. The wind wheel 30 can thus be thoroughly cleaned while ensuring that the pressure of the cleaning agent sprayed from the cleaning agent spraying pipe 520 is high. In other words, the cleaning device 50 can clean the wind wheel 30 entirely without providing a driving device for driving the cleaning agent nozzle 520 to move.
Therefore, the cleaning device 50 according to the embodiment of the invention has the advantages of good cleaning effect, thorough cleaning, comprehensive cleaning, simple structure, low assembly difficulty, low manufacturing cost and the like.
The cleaning agent source 510 may be the steam generator 10 or a cleaning agent cartridge. When the cleaning agent source 510 is the steam generator 10, the cleaning agent spray pipe 520 may be a steam spray pipe 40a, and the steam spray pipe 40a may spray steam toward the wind wheel 30; when the cleaning agent source 510 is the cleaning agent cartridge, the cleaning agent cartridge may contain a cleaning agent (e.g., water, soot cleaning agent, etc.) which may be pumped into the cleaning agent spray tube 520.
When the hood 1 is installed or in a display state or in a use state, the axial direction of the wind wheel 30 coincides with the front-rear direction, i.e., the at least a portion of the detergent nozzle 520 may extend in the front-rear direction. Wherein the front-rear direction is shown by arrow a in fig. 19. Slider 530 may be movably disposed within the at least a portion of cleaner nozzle 520 along a length of the at least a portion of cleaner nozzle 520 between a front cover position adjacent a front end of cleaner nozzle 520 and a rear cover position adjacent a rear end of cleaner nozzle 520.
Preferably, the length direction of the slider 530 may coincide with the length direction of the detergent spray pipe 520, and the ratio of the length of the detergent spray pipe 520 to the length of the slider 530 may be greater than 2, so that at least a portion of at least one detergent spray hole 521 is always exposed.
Thus, the cleaning range of the cleaning agent spray pipe 520 before the movement of the slider 530 is partially overlapped with the cleaning range of the cleaning agent spray pipe 520 after the movement of the slider 530, so that the wind wheel 30 can be cleaned more comprehensively. For example, the cleaning range of cleaner nozzle 520 when slider 530 is in the front cover position may partially overlap the cleaning range of cleaner nozzle 520 when slider 530 is in the rear cover position.
As shown in fig. 8 and 9, the number of the detergent injection holes 521 may be an odd number (e.g., 5), and the middle detergent injection hole 521 may be located at the middle of the detergent spray pipe 520. That is, the distance of the centrally located detergent injection hole 521 from the first end (front end) of the detergent spray pipe 520 may be substantially equal to the distance of the centrally located detergent injection hole 521 from the second end (rear end) of the detergent spray pipe 520. When the slider 530 is located at the front cover position, the centrally located detergent ejection hole 521 is exposed (not covered by the slider 530); when the slider 530 is located at the rear cover position, the centrally located detergent ejection hole 521 is exposed.
As shown in fig. 8 and 9, the cleaning device 50 may further include first and second stoppers 561 and 562, and the first and second stoppers 561 and 562 may be disposed in the cleaning agent spraying pipe 520 at intervals along the length direction of the cleaning agent spraying pipe 520. The slider 530 and each of the detergent spray holes 521 may be located between the first and second stoppers 561 and 562 in the length direction of the detergent spray pipe 520. By providing the first and second stoppers 561 and 562, the moving range of the slider 530 can be limited, and the slider 530 can be prevented from striking the end of the cleaner nozzle 520.
In one embodiment of the present invention, the slider 530 may be a magnetic member or the slider 530 may be made of a ferromagnetic material, and the cleaning device 50 may further include a first electromagnet (not shown) that may cooperate with the slider 530 to move the slider 530 within the cleaner nozzle 520.
Specifically, the first electromagnet may be energized so that the first electromagnet generates a magnetic field, whereby the first electromagnet may apply a magnetic force to the slider 530. Further, the direction of the magnetic force may be changed by changing the direction of the current flowing through the first electromagnet, i.e., the direction of the current flowing through the first electromagnet is opposite, and the direction of the magnetic force is also opposite. Since the first electromagnet can drive the slider 530 to move within the cleaner nozzle 520 by applying the magnetic force to the slider 530. Preferably, the first electromagnet may be adjacent the end of cleaner nozzle 520.
In another embodiment of the present invention, the first end (e.g., front end) and the second end (e.g., rear end) of the detergent spray pipe 520, which are opposite in the length direction thereof, are opened so as to form two detergent inlets, and the cleaning device 50 may further include a first detergent delivery pipe, a second detergent delivery pipe, a first pressure regulating valve, and a second pressure regulating valve (not shown).
The first end of the first detergent delivery pipe may be in communication with a detergent outlet of the detergent source 510, and the second end of the first detergent delivery pipe may be in communication with a first end of the detergent spray pipe 520. The first end of the second detergent delivery pipe may be in communication with a detergent outlet of the detergent source 510, and the second end of the second detergent delivery pipe may be in communication with a second end of the detergent spray pipe 520. The first pressure regulating valve may be provided on the first detergent delivery pipe, and the second pressure regulating valve may be provided on the second detergent delivery pipe.
For better understanding of the technical solution of the present application, the operation of the cleaning device 50 will be described below by taking the first end of the cleaning agent spray pipe 520 as the front end and the second end as the rear end as an example.
When it is necessary to clean the front of the wind wheel 30, the first and second pressure regulating valves may be adjusted so that the pressure of the cleaning agent outputted from the first cleaning agent delivery pipe is greater than the pressure of the cleaning agent outputted from the second cleaning agent delivery pipe. Whereby the cleaning agent outputted from the first cleaning agent delivery pipe is introduced into the cleaning agent spraying pipe 520 (the cleaning agent is introduced into the cleaning agent spraying pipe 520 from the front end of the cleaning agent spraying pipe 520) and the slider 530 is pushed to move backward, so that the cleaning agent can be sprayed from the cleaning agent spraying hole 521 located at the front of the cleaning agent spraying pipe 520 to clean the front of the wind wheel 30.
When it is necessary to clean the rear portion of the wind wheel 30, the first and second pressure regulating valves may be adjusted so that the pressure of the cleaning agent outputted from the first cleaning agent delivery pipe is smaller than the pressure of the cleaning agent outputted from the second cleaning agent delivery pipe. Whereby the cleaning agent outputted from the second cleaning agent delivery pipe is introduced into the cleaning agent spraying pipe 520 (the cleaning agent is introduced into the cleaning agent spraying pipe 520 from the rear end of the cleaning agent spraying pipe 520) and the slider 530 can be pushed to move forward, so that the cleaning agent can be sprayed from the cleaning agent spraying holes 521 located at the rear of the cleaning agent spraying pipe 520 so as to clean the rear of the wind wheel 30.
In yet another embodiment of the present invention, as shown in fig. 7 and 10-12, a first end (e.g., front end) and a second end (e.g., rear end) of the detergent spray pipe 520, which are opposite in their length direction, are opened so as to form two detergent inlets. The cleaning apparatus 50 may further include a three-way valve 540, and the three-way valve 540 may have a first inlet 541, a first cleaner outlet 542, and a second cleaner outlet 543. First inlet 541 may be in communication with a cleaner outlet of cleaner source 510, first cleaner outlet 542 may be in communication with a first end of cleaner nozzle 520, and second cleaner outlet 543 may be in communication with a second end of cleaner nozzle 520.
For better understanding of the technical solution of the present application, the operation of the cleaning device 50 will be described below by taking the first end of the cleaning agent spray pipe 520 as the front end and the second end as the rear end as an example.
When it is desired to wash the front of the wind wheel 30, the first detergent outlet 542 may be opened and the second detergent outlet 543 may be closed, whereby detergent may be introduced into the detergent spray pipe 520 from the front end of the detergent spray pipe 520 and the slider 530 may be pushed to move backward, so that the detergent may be sprayed from the detergent spray holes 521 located at the front of the detergent spray pipe 520 to wash the front of the wind wheel 30.
When it is desired to wash the rear of the wind wheel 30, the first detergent outlet 542 may be closed and the second detergent outlet 543 may be opened, whereby detergent may be introduced into the detergent spray pipe 520 from the rear end of the detergent spray pipe 520 and the slider 530 may be pushed to move forward, so that the detergent may be sprayed from the detergent spray holes 521 located at the rear of the detergent spray pipe 520 to wash the rear of the wind wheel 30.
As shown in fig. 10-12, three-way valve 540 may include a valve body 544 and a valve spool 545. The valve body 544 may have a first inlet 541, a first detergent outlet 542, and a second detergent outlet 543, and the first inlet 541 may be located between the first detergent outlet 542 and the second detergent outlet 543 in the first direction. This first direction is shown by arrow B in fig. 10. The valve core 545 may be movably disposed within the valve body 544 in the first direction between a closed position, a first open position, and a second open position, the valve core 545 having a first cover portion 5451 and a second cover portion 5452.
First inlet 541 may be located between first cover portion 5451 and second cover portion 5452 of valve spool 545 in the closed position in the first direction. First cover portion 5451 of valve cartridge 545 in the closed position may cover first cleaner outlet 542 and second cover portion 5452 of valve cartridge 545 in the closed position may cover second cleaner outlet 543.
The first cover 5451 of the valve body 545 in the first open position may cover the second cleaner outlet 543, or the first cover 5451 of the valve body 545 in the first open position may be located between the first inlet 541 and the second cleaner outlet 543 in the first direction (including the first cover 5451 covering a portion of the second cleaner outlet 543).
The first cover 5451 of the valve cartridge 545 in the second open position may be located between the first inlet 541 and the first detergent outlet 542 in the first direction (including the first cover 5451 covering a portion of the first detergent outlet 542). Second cleaner outlet 543 can be located between first inlet 541 and second cover 5452 of valve core 545 in the second open position in the first direction (including second cover 5452 covering a portion of second cleaner outlet 543).
Preferably, the valve cartridge 545 may be a magnetic member or the valve cartridge 545 is made of a ferromagnetic material, and the cleaning device 50 may further include a second electromagnet 550, the second electromagnet 550 may cooperate with the valve cartridge 545 to move the valve cartridge 545 between the closed position, the first open position, and the second open position. The manner in which second electromagnet 550 mates with valve core 545 is the same as the manner in which the first electromagnet mates with slider 530 described above, and will not be described in detail herein.
As described above, the cleaning agent source 510 may be the steam generator 10.
As shown in fig. 13 and 14, in some examples of the present invention, the steam generator 10 may include a heating body 110 and a water inlet pipe 120. The heating body 110 may have a heating sealing chamber for accommodating a heating medium, and the heating body 110 may be provided with a first through hole and a second through hole communicating with the heating sealing chamber. At least a portion of the water inlet pipe 120 may be disposed in the heat sealing chamber, the water inlet end of the water inlet pipe 120 may be connected to the first through hole, and the steam outlet end of the water inlet pipe 120 may be connected to the second through hole.
When steam is generated by the existing steam generator, water can be supplied into the steam generator by a water pump, and then heated to steam by heat generated by the steam generator. The purity of the water delivered to the steam generator is low due to the large amount of water consumed. Therefore, after the existing steam generator is used for a period of time, scale is generated on the wall surface of the heating cavity, and the heating efficiency of the steam generator is greatly reduced.
The heat-sealed chamber can contain a heating medium (e.g., water). The heat generator 110 generates heat to heat the heating medium into a gaseous heating medium that heats water flowing through the water inlet pipe 120 and heats water flowing through the water inlet pipe 120 into steam, and the gas is condensed into a liquid heating medium, thus being repeatedly circulated. Wherein water can be supplied to the water inlet pipe 120 by the water pump 60, i.e. the water inlet end of the water inlet pipe 120 can be communicated with the water outlet of the water pump 60.
The steam generator 10 according to the embodiment of the present invention is capable of accommodating a heating medium in the heating sealed chamber by providing the heating sealed chamber, and heating water using the heating medium to generate steam, i.e., heating water using a phase change of the heating medium to generate steam.
Since only a small amount of the heating medium needs to be repeatedly used, the heating medium having a high purity can be used. Even if the purity of the heating medium is low, the heating efficiency of the steam generator 10 is not lowered by the generation of scale due to the small amount of the heating medium.
Further, since the water flows in the water inlet pipe 120, the water does not contact the wall surface of the heat sealing chamber, and thus the heating efficiency of the steam generator 10 is not lowered due to the generation of scale on the wall surface of the heat sealing chamber.
Therefore, the steam generator 10 according to the embodiment of the present invention has advantages of high heating efficiency, low power consumption, and the like.
The connection of the water inlet end of the water inlet pipe 120 to the first through hole and the connection of the steam outlet end of the water inlet pipe 120 to the second through hole should be construed broadly. The connection of the steam outlet end of the water inlet pipe 120 to the second through hole will be understood and explained in more detail by taking the example that the water inlet end of the water inlet pipe 120 is connected to the first through hole.
The water inlet end of the water inlet pipe 120 is connected to the first through hole, including but not limited to: a. the water inlet end of the water inlet pipe 120 extends into the first through hole or is connected with the wall surface of the first through hole; b. the water inlet end of the water inlet pipe 120 is connected with the wall surface of the heating sealing cavity, and the inner edge of the water inlet end of the water inlet pipe 120 is flush with the edge of the first through hole or is positioned at the inner side of the edge of the first through hole; c. the water inlet end of the water inlet pipe 120 is connected with the wall surface of the heating sealing cavity, and the inner edge of the water inlet end of the water inlet pipe 120 is positioned outside the edge of the first through hole and is adjacent to the edge of the first through hole; d. the water inlet end of the water inlet pipe 120 passes through the first through hole and extends out of the heating sealing cavity; e. the water inlet end of the water inlet pipe 120 is connected to the first end of the pipeline, and the second end of the pipeline is connected to the first through hole in the above manner, i.e. the water inlet end of the water inlet pipe 120 is connected to the first through hole through the pipeline.
As shown in fig. 14, in one example of the present invention, the heating body 110 may include a body 113 and a heating element 116. The body 113 may have the heat sealing chamber, and at least a portion of the heating element 116 may be disposed within the heat sealing chamber. Whereby the structure of the steam generator 10 can be made more rational.
As shown in fig. 13 and 14, the body 113 may include a main body 1133 and an end cap 1134, the main body 1133 may define the receiving cavity 111, and a first end of the receiving cavity 111 may be open. The end cap 1134 may be welded to the body 1133, and the end cap 1134 may also be removably mounted to the body 1133 by a plurality of fasteners. Wherein the end cap 1134 may cover the first end of the receiving cavity 111 to form the heat seal cavity, i.e., the heat seal cavity may be defined between the body 1133 and the end cap 1134.
Preferably, a seal ring may be disposed between the end cap 1134 and the body 1133, a plurality of the fasteners may be symmetrical with respect to each of a longitudinal centerline of the body 1133 and a longitudinal centerline of the end cap 1134, and a plurality of the fasteners may be symmetrical with respect to each of a lateral centerline of the body 1133 and a lateral centerline of the end cap 1134. Thereby, the sealability between the end cap 1134 and the main body 1133 can be further improved, and thus the sealability of the heat sealing chamber can be further improved.
Specifically, a longitudinal centerline of the body 1133 may coincide with a longitudinal centerline of the end cap 1134, a lateral centerline of the body 1133 may coincide with a lateral centerline of the end cap 1134, a longitudinal centerline of the body 1133 (end cap 1134) may extend along a length direction of the body 1133 (end cap 1134), and a lateral centerline of the body 1133 (end cap 1134) may extend along a width direction of the body 1133 (end cap 1134).
As shown in fig. 14, the at least a portion of the heating member 116 may be U-shaped or configured in a serpentine shape, whereby the heated area of the heating medium in the heating seal chamber may be increased, and thus the heating medium may be more effectively heated. The at least a portion of the water inlet pipe 120 may be U-shaped or configured in a serpentine shape, whereby the heating time of the water in the water inlet pipe 120 may be prolonged, and thus the water in the water inlet pipe 120 may be more effectively heated into steam.
Preferably, the heating element 116 may be adjacent to one of the top and bottom wall surfaces of the heat seal chamber and the water inlet tube 120 may be adjacent to the other of the top and bottom wall surfaces of the heat seal chamber. This allows the heat seal chamber to contain a sufficient amount of heating medium, thereby allowing for a more rational construction of the steam generator 10.
In one specific example of the present invention, the steam generator 10 may further include a temperature detector that may be in contact with the heat generating body 110 to detect the temperature of the heat generating body 110, and a pressure detector (not shown in the drawing) that may be provided in the heat sealing chamber to detect the pressure in the heat sealing chamber. Thereby, when the temperature of the heating body 110 exceeds a first preset value or the pressure in the heating seal chamber exceeds a second preset value, the steam generator 10 can be stopped from heating so as to improve the safety of the steam generator 10.
As shown in fig. 15 and 16, in other examples of the present invention, the steam generator 10 may include a heating body 110, the heating body 110 may have a receiving chamber 111 and a preheating passage 112, and a water outlet of the preheating passage 112 may communicate with the receiving chamber 111.
As described above, after the conventional steam generator is used for a certain period of time, scale is generated on the wall surface of the heating chamber, resulting in a great decrease in the heating efficiency of the steam generator.
The water pump 60 may be utilized to supply water to the preheating passage 112, i.e., the water inlet of the preheating passage 112 may be in communication with the water outlet of the water pump 60. The water flowing through the preheating passage 112 is heated by the heating body 110 in the process of flowing through the preheating passage 112, and the water leaving the preheating passage 112 may enter the accommodating chamber 111, and the water in the accommodating chamber 111 is secondarily heated by the heating body 110 to generate steam.
The steam generator 10 according to the embodiment of the present invention can heat water twice, that is, first, and then, by using the heat generating body 110 by providing the heat generating body 110 with the preheating passage 112 communicating with the accommodating chamber 111. Thereby, the heat of the heat generating body 110 can be sufficiently utilized, and thus the heating efficiency of the steam generator 10 can be improved.
Therefore, the steam generator 10 according to the embodiment of the present invention has advantages of high heating efficiency, sufficient heat utilization, low power consumption, and the like.
As shown in fig. 16, in an example of the present invention, the heating body 110 may include a body 113, the body 113 may have a receiving chamber 111, and at least one of a side plate 1131 and a bottom plate 1132 of the body 113 may have a hollow cavity therein, which may constitute the preheating passage 112.
In another example of the present invention, the heating body 110 may include a body 113 and a preheating pipe 114. The body 113 may have a receiving chamber 111, a preheating pipe 114 may be provided on an outer surface of the body 113, and a passage in the preheating pipe 114 may constitute the preheating passage 112.
As shown in fig. 4 to 6, the heating element 110 may further include a heat conductive member 115, the heat conductive member 115 may have opposite first and second surfaces 1151 and 1152, at least a portion of the first surface 1151 may be planar, and at least a portion of the second surface 1152 may be curved. Wherein the at least a portion of the first surface 1151 may be in contact with an outer surface of the body 113 and the at least a portion of the second surface 1152 may be in contact with at least a portion of an outer circumferential surface of the preheating tube 114.
Since the at least a portion of the first surface 1151 of the heat conducting member 115 is planar and the at least a portion of the first surface 1151 of the heat conducting member 115 is in contact with the outer surface of the body 113 (the outer surface of the body 113 is planar), the heat conducting member 115 is in surface contact with the body 113. Since the at least a portion of the second surface 1152 of the heat conducting member 115 is curved and the curved surface is in contact with the preheating tube 114, the preheating tube 114 is in surface contact with the heat conducting member 115. The preheating pipe 114 can thereby be brought into surface contact with the body 113.
The heating body 110 according to the embodiment of the present invention can bring the preheating pipe 114 into surface contact with the body 113 by providing the heat conductive member 115 in surface contact with each of the body 113 and the preheating pipe 114. Thereby greatly increasing the contact area between the preheating pipe 114 and the body 113, thereby greatly increasing the heat exchange area between the preheating pipe 114 and the body 113, so that the water in the preheating pipe 114 can be heated more effectively, the heating efficiency of the steam generator 10 can be further improved, and the heat of the steam generator 10 can be utilized more fully.
As shown in fig. 4-6, the first surface 1151 may be planar and the shape of the at least a portion of the second surface 1152 may be adapted to the shape of the at least a portion of the outer circumferential surface of the preheating tube 114. Thereby, the contact area between the preheating pipe 114 and the heat conducting member 115 can be further increased, so that the water in the preheating pipe 114 can be more effectively heated, the heating efficiency of the steam generator 10 can be further improved, and the heat of the steam generator 10 can be more fully utilized.
Preferably, as shown in fig. 4-6, the preheating tube 114 may be a circular tube, the second surface 1152 may be at least a portion of a cylindrical surface, and the entire second surface 1152 may be in contact with the at least a portion of the outer circumferential surface of the preheating tube 114. Thereby making the structures of the steam generator 10 and the heating body 110 more reasonable.
As shown in fig. 4 and 5, in one embodiment of the invention, the cross-section 1156 of the heat conducting member 115 may have opposite first and second edges 1153, 1154, the first edge 1153 may be located on the first surface 1151 and the second edge 1154 may be located on the second surface 1152. Wherein the first edge 1153 may be a straight line and the second edge 1154 may be a circular arc. Thus, the second surface 1152 may be a portion of a cylindrical surface and the second surface 1152 may be in contact with a portion of the outer circumferential surface of the preheat tube 114.
Preferably, the central angle of the second edge 1154 may be greater than or equal to 120 degrees and less than or equal to 240 degrees, i.e., the central angle corresponding to the second edge 1154 may be greater than or equal to 120 degrees and less than or equal to 240 degrees. More preferably, the central angle of the second edge 1154 may be 160 degrees or more and 200 degrees or less. Most preferably, the central angle of the second edge 1154 may be 180 degrees. Thereby not only increasing the contact area of the preheating pipe 114 and the heat conductive member 115, but also more firmly assembling the preheating pipe 114 and the heat conductive member 115 together. In addition, the heat conductive member 115 has advantages of simple structure, convenience in manufacturing, and the like.
In another embodiment of the present invention, as shown in fig. 6, the heat conducting member 115 may have a through hole 1155 extending along the length of the preheating tube 114, the through hole 1155 may have a circular cross section (i.e., the through hole 1155 may be a circular hole), and the wall surface of the through hole 1155 may be the second surface 1152. Wherein, the heat conducting member 115 may be sleeved on the preheating tube 114, the wall surface of the through hole 1155 is in contact with the outer peripheral surface of the preheating tube 114, and the outer edge of the cross section 1156 of the heat conducting member 115 may be quadrangular. Thereby not only the contact area of the preheating pipe 114 and the heat conductive member 115 can be further increased, but also the preheating pipe 114 and the heat conductive member 115 can be more firmly assembled together.
Preferably, the preheating channel 112 may be configured in a serpentine shape, in particular, the hollow cavity may be configured in a serpentine shape or the preheating tube 114 may be configured in a serpentine shape. The preheating passage 112 may include a plurality of straight sections and at least one arcuate section. A plurality of the straight sections may be disposed at intervals in the circumferential direction of the body, an end of one of the adjacent two straight sections being connected to the first end of the arc-shaped section, and an end of the other of the adjacent two straight sections being connected to the second end of the arc-shaped section. In other words, two adjacent straight segments may be connected by one arcuate segment. Thereby making the structures of the heating body 110 and the steam generator 10 more reasonable.
As shown in fig. 17 and 18, in still other examples of the present invention, the steam generator 10 may include a body 113, a first electrode 131, and a second electrode 132, and the body 113 may have a receiving chamber 111. The first electrode 131 and the second electrode 132 may be provided on the body 113 to be spaced apart in an up-down direction, at least a portion of the first electrode 131 may be located in the receiving chamber 111, and at least a portion of the second electrode 132 may be located in the receiving chamber 111.
The steam generator 10 according to the embodiment of the present invention can detect whether water is supplied into the accommodating chamber 111 using the detection resistance value by providing the first electrode 131 and the second electrode 132 positioned in the accommodating chamber 111.
Specifically, when water is supplied into the accommodating chamber 111, a portion of the first electrode 131 and a portion of the second electrode 132 are immersed in the water of the accommodating chamber 111, whereby the first electrode 131 and the second electrode 132 can be connected to a circuit whose pull-down resistance has a voltage value not equal to zero. When no water is fed into the housing chamber 111 (e.g., a failure of the water pump 60 feeding water into the housing chamber 111), at least one of a portion of the first electrode 131 and a portion of the second electrode 132 is not immersed in the water of the housing chamber 111, whereby an open circuit is formed between the first electrode 131 and the second electrode 132, and the resistance is infinite, i.e., the voltage value of the pull-down resistance of the circuit is equal to zero.
The voltage value of the pull-down resistor of the circuit may be collected every first preset time, for example, every second. If the time when the voltage value of the pull-down resistor is continuously detected to be equal to zero exceeds a second preset time (for example, three seconds), it indicates that no water is supplied to the receiving chamber 111 and the steam generator 10 is in a dry-fire state.
Therefore, the steam generator 10 according to the embodiment of the present invention has advantages of high safety, and the like.
Preferably, the first electrode 131 may be made of metal, and the second electrode 132 may also be made of metal. More preferably, the first electrode 131 may be made of stainless steel, and the second electrode 132 may also be made of stainless steel.
As shown in fig. 17 and 18, in one example of the present invention, the body 113 may include a main body 1133 and a detection body 1135. The body 1133 may have a heating cavity within which water is heated to steam. The detection body 1135 has a detection chamber 1136, and the detection chamber 1136 communicates with the heating chamber. That is, the receiving chamber 111 may include the heating chamber and the sensing chamber 1136.
The first electrode 131 and the second electrode 132 may be provided on the detection body 1135 at intervals in the up-down direction, at least a portion of the first electrode 131 may be located in the detection chamber 1136, and at least a portion of the second electrode 132 may be located in the detection chamber 1136. Wherein, the water inlet of the water pump 60 may be communicated with the water outlet of the water tank 90, the water inlet of the detection cavity 1136 may be communicated with the water outlet of the water pump 60, and the water outlet of the detection cavity 1136 may be communicated with the water inlet of the heating cavity.
Since water introduced into the heating chamber can be heated relatively quickly into steam, if the first electrode 131 and the second electrode 132 are provided on the body 1133, an inaccurate detection result may be caused. By providing the detection body 1135 having the detection chamber 1136 and providing the first electrode 131 and the second electrode 132 at the detection body 1135, the accuracy of the detection result can be greatly improved, and thus the safety performance of the steam generator 10 can be further improved.
As shown in fig. 18, the at least a portion of the first electrode 131 may be adjacent to one of the top wall surface and the bottom wall surface of the detection chamber 1136, and the at least a portion of the second electrode 132 may be adjacent to the other of the top wall surface and the bottom wall surface of the detection chamber 1136. Thereby, the at least a portion of the first electrode 131 and the at least a portion of the second electrode 132 may have a large distance in the up-down direction, so that it is possible to avoid affecting the accuracy of the detection result due to the fluctuation of the water level (water surface) in the detection chamber 1136, so that the safety performance of the steam generator 10 may be further improved.
Preferably, the area of the horizontal cross section of the detection chamber 1136 may be equal to or less than a preset value. Thus, when no water is supplied into the detection chamber 1136 (the accommodation chamber 111), the water level in the detection chamber 1136 may be rapidly lowered, so that it may be rapidly detected that no water is supplied into the detection chamber 1136, i.e., the detection speed may be increased, so that the safety performance of the steam generator 10 may be further improved.
As shown in fig. 17 and 18, the steam generator 10 may further include a connection pipe 140, the water inlet end of the connection pipe 140 may be connected to the water outlet of the sensing chamber 1136, and the water outlet end of the connection pipe 140 may be connected to the water inlet of the heating chamber. Whereby the structure of the steam generator 10 can be made more rational. The meaning of "connected" herein can be understood with reference to the above explanation.
Preferably, as shown in fig. 18, the first electrode 131 can be horizontally disposed, and the second electrode 132 can be horizontally disposed. The upper edge of the water outlet of the detection chamber 1136 may be located between the first electrode 131 and the second electrode 132 in the up-down direction. Wherein the up-down direction is shown by arrow C in fig. 1. Thereby, when no water is supplied to the detection chamber 1136, it is further ensured that the water level in the detection chamber 1136 can be lowered between the first electrode 131 and the second electrode 132, so that the safety performance of the steam generator 10 can be further improved.
The existing smoke exhaust ventilator can only clean the wind wheel, but cannot clean the volute. To overcome the drawbacks of the prior art, the present application provides a range hood 1 capable of cleaning a volute 20.
As shown in fig. 1-3, 19 and 20, the volute 20 of the range hood 1 may have a steam passage, the steam inlet of which may be in communication with the steam outlet of the steam generator 10. The range hood 1 may further include a steam nozzle 40a, a steam inlet of the steam nozzle 40a may be in communication with a steam outlet of the steam channel, and the steam nozzle 40a may cooperate with the wind wheel 30 to spray steam toward the wind wheel 30. In particular, steam nozzle 40a may be a cleaner nozzle 520.
The process of cleaning the volute 20 and the wind wheel 30 is described below with reference to fig. 1-3, 19, and 20. First, steam is generated by the steam generator 10, and the steam can be delivered into the steam passage of the scroll case 20 to heat the grease adhered to the scroll case 20, and the grease adhered to the scroll case 20 is softened after being heated. After exiting the steam path of the volute 20, the steam enters the steam nozzle 40a, and the steam nozzle 40a sprays the steam onto the wind wheel 30 to remove grease from the wind wheel 30.
After the steam contacts the wind wheel 30, the steam is condensed into condensed water, and the wind wheel 30 can throw the condensed water onto the volute 20 because the wind wheel 30 is in a rotating state. Specifically, the wind wheel 30 may throw the condensed water onto the inner peripheral surface of the scroll casing 20, and grease mainly adheres to the inner peripheral surface of the scroll casing 20. The condensed water can wash the inner peripheral surface of the scroll casing 20, and can wash away the heated and softened grease so as to remove the grease adhered to the inner peripheral surface of the scroll casing 20, thereby achieving the effect of cleaning the scroll casing 20.
The range hood 1 according to the embodiment of the present invention can heat-soften grease adhering to the scroll case 20 by using steam passing through the steam passage by providing the scroll case 20 with the steam passage. Thereby, grease which has been softened by heat can be washed away by the condensed water generated by washing the wind wheel 30, so that the grease adhering to the scroll case 20 can be removed.
Therefore, the range hood 1 according to the embodiment of the invention not only can clean the wind wheel 30, but also can clean the volute 20, so that the range hood has the advantages of smooth smoke discharge, low noise, low energy consumption, long service life of a motor and the like.
The steam path exiting the steam path may enter the steam nozzle 40a (the detergent nozzle 520) through the three-way valve 540 described above, and may also enter the steam nozzle 40a through the first detergent delivery pipe and the second detergent delivery pipe described above.
As shown in fig. 20, in one embodiment of the present invention, the scroll casing 20 may have a hollow cavity (i.e., a steam interlayer) that may constitute the steam path, i.e., steam may flow through the hollow cavity.
In another embodiment of the present invention, as shown in fig. 1-3, the volute 20 may include a housing 210 and a heating tube 220, and the wind wheel 30 may be disposed within the housing 210. The heating pipe 220 may be provided on the outer circumferential surface 212 of the housing 210, and a passage in the heating pipe 220 may constitute the steam passage, i.e., steam may flow through the heating pipe 220.
As shown in fig. 21 and 22, the scroll case 20 may further include a heat conductive member 230, and the heat conductive member 230 may have a first surface 231 and a second surface 232 opposite to each other, at least a portion of the first surface 231 may be curved, and at least a portion of the second surface 232 may be curved. Wherein the at least a portion of the first surface 231 may be in contact with at least a portion of the outer circumferential surface 212 of the housing 210 and the at least a portion of the second surface 232 may be in contact with at least a portion of the outer circumferential surface of the heating tube 220.
Since the at least a portion of the first surface 1151 of the heat conductive member 230 is curved, the at least a portion of the outer circumferential surface 212 of the housing 210 is also curved, and the at least a portion of the first surface 231 of the heat conductive member 230 is in contact with the at least a portion of the outer circumferential surface 212 of the housing 210, the heat conductive member 230 is in surface contact with the housing 210. Since the at least a portion of the second surface 232 of the heat conductive member 230 is curved and the curved surface is in contact with the heating tube 220, the heating tube 220 is in surface contact with the heat conductive member 230. Thereby, the heating pipe 220 can be brought into contact with the housing 210 in a surface contact manner.
The scroll case 20 according to the embodiment of the present invention may allow the heating pipe 220 to be in surface contact with the housing 210 by providing the heat conductive member 230 in surface contact with each of the housing 210 and the heating pipe 220. Thereby, the contact area of the heating pipe 220 and the housing 210 can be greatly increased, so that the heat exchanging area of the heating pipe 220 and the housing 210 can be greatly increased, so that the grease adhered to the housing 210 can be more effectively heated, and the grease adhered to the housing 210 can be more easily flushed down, so that the housing 210 of the volute 20 can be more effectively and thoroughly cleaned.
As shown in fig. 21 and 22, the shape of the at least a portion of the first surface 231 is adapted to the shape of the at least a portion of the outer circumferential surface 212 of the housing 210, and the shape of the at least a portion of the second surface 232 is adapted to the shape of the at least a portion of the outer circumferential surface of the heating tube 220. Thereby, the contact area of the heat conductive member 230 with the housing 210 and the contact area of the heating pipe 220 with the heat conductive member 230 can be further increased, so that the grease adhered to the housing 210 can be more effectively heated, and the grease adhered to the housing 210 can be more easily flushed down, so that the housing 210 of the scroll casing 20 can be more effectively and thoroughly cleaned.
Preferably, as shown in fig. 21 and 22, the heating tube 220 may be a circular tube, the second surface 232 may be at least a portion of a cylindrical surface, and the entire second surface 232 may be in contact with the at least a portion of the outer circumferential surface of the heating tube 220. Whereby the structure of the scroll casing 20 can be made more reasonable.
As shown in fig. 21 and 22, in one embodiment of the invention, the cross-section 236 of the thermally conductive member 230 may have opposite first and second edges 233, 234, the first edge 233 may be located on the first surface 231 and the second edge 234 may be located on the second surface 232. Wherein the first edge 233 may be a portion of an involute, and the second edge 234 may be a circular arc. Thus, the second surface 232 may be a portion of a cylindrical surface, and the second surface 232 may be in contact with a portion of the outer circumferential surface of the heating tube 220.
Preferably, the central angle of the second edge 234 may be greater than or equal to 120 degrees and less than or equal to 240 degrees, i.e., the central angle corresponding to the second edge 234 may be greater than or equal to 120 degrees and less than or equal to 240 degrees. More preferably, the central angle of the second edge 234 may be 160 degrees or more and 200 degrees or less. Most preferably, the central angle of the second edge 234 may be 180 degrees. Thereby not only increasing the contact area of the heating pipe 220 and the heat conductive member 230, but also more firmly assembling the heating pipe 220 and the heat conductive member 230 together. In addition, the heat conductive member 230 has advantages of simple structure, convenient manufacturing, and the like.
As shown in fig. 23, in another embodiment of the present invention, the heat conductive member 230 may have a through hole 235 extending along the length direction of the heating pipe 220, the through hole 235 may have a circular shape in cross section (i.e., the through hole 235 may be a circular hole), and the wall surface of the through hole 235 may be the second surface 232.
The heat conducting member 230 may be sleeved on the heating tube 220, and the wall surface of the through hole 235 contacts the outer circumferential surface of the heating tube 220. Thereby not only further increasing the contact area of the heating pipe 220 with the heat conductive member 230, but also more firmly assembling the heating pipe 220 and the heat conductive member 230 together.
Preferably, the steam channel may be configured in a serpentine shape, in particular, the hollow cavity may be configured in a serpentine shape or the heating tube 220 may be configured in a serpentine shape. The steam channel may include a plurality of straight sections and at least one arcuate section. A plurality of the straight sections may be disposed at intervals along the circumferential direction of the scroll casing 20, and each of the straight sections may extend in the axial direction of the scroll casing 20. An end of one of the adjacent two straight sections is connected to the first end of the arcuate section and an end of the other of the adjacent two straight sections is connected to the second end of the arcuate section. In other words, two adjacent straight segments may be connected by one arcuate segment. Whereby the structure of the scroll casing 20 can be made more reasonable.
Preferably, the distance between two adjacent straight sections in the circumferential direction of the scroll casing 20 decreases in the circumferential direction of the scroll casing 20 in a direction away from the tongue 211 of the scroll casing 20. Specifically, the grease adhering to the lower portion of the scroll case 20 is more, and the grease adhering to the upper portion of the scroll case 20 is less. Among the plurality of straight sections provided at the lower portion of the scroll casing 20, the distance between two adjacent straight sections in the circumferential direction of the scroll casing 20 is small, i.e., the density of the plurality of straight sections provided at the lower portion of the scroll casing 20 is large; among the plurality of straight sections provided at the upper portion of the scroll casing 20, the distance between two adjacent straight sections in the circumferential direction of the scroll casing 20 is large, i.e., the density of the plurality of straight sections provided at the upper portion of the scroll casing 20 is small. The structure of the steam passage can be simplified while ensuring efficient cleaning of grease on the scroll casing 20.
As shown in fig. 2 and 3, the heating tube 220 is configured in a serpentine shape, and the heating tube 220 may include a plurality of straight sections 221 and at least one arcuate section 222. A plurality of straight segments 221 may be disposed at intervals along the circumferential direction of the scroll casing 20, and each straight segment 221 may extend in the axial direction of the scroll casing 20. The distance between adjacent two straight sections 221 in the circumferential direction of the scroll casing 20 decreases in the circumferential direction of the scroll casing 20 in a direction away from the scroll tongue 211 of the scroll casing 20. An end of one of the adjacent two straight sections 221 is connected to a first end of the arc-shaped section 222, and an end of the other of the adjacent two straight sections 221 is connected to a second end of the arc-shaped section 222.
Preferably, an insulation layer may be provided on an outer circumferential surface of the heating pipe 220 which is not in contact with the housing 210 or the heat conductive member 230. Thereby, the steam flowing through the heating pipe 220 is heat-exchanged only with the housing 210, not with the outside, so that the heat loss of the steam flowing through the heating pipe 220 can be prevented, so that the condensation of a part of the steam into condensed water can be prevented, and the effect of cleaning the wind wheel 30 with the steam can be ensured.
An insulating layer may be provided on the outer circumferential surface 212 of the housing 210, so that the softened grease may be prevented from solidifying again or the degree of softening may be reduced after cooling.
In the description of the present invention, it should be 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (9)

1. A cleaning device, comprising:
A source of cleaning agent;
a detergent nozzle having a detergent inlet communicating with a detergent outlet of the detergent source and a plurality of detergent spray holes spaced apart along a length direction of the detergent nozzle; and
a slider movably disposed within the cleaner nozzle in a longitudinal direction of the cleaner nozzle, the slider capping a portion of the plurality of cleaner spray holes;
the cleaning device comprises a cleaning agent spray pipe, a cleaning device body, a sliding block, a cleaning device body and a cleaning device, wherein the sliding block is a magnetic piece or made of ferromagnetic materials, and the cleaning device body further comprises a first electromagnet which is matched with the sliding block so as to drive the sliding block to move in the cleaning agent spray pipe.
2. The cleaning apparatus of claim 1, wherein the first and second ends of the cleaner nozzle opposite in length are open to form two cleaner inlets, the cleaning apparatus further comprising:
a first cleaner delivery tube, a first end of the first cleaner delivery tube communicating with the cleaner outlet of the cleaner source, a second end of the first cleaner delivery tube communicating with the first end of the cleaner nozzle;
A second cleaner delivery tube, a first end of the second cleaner delivery tube communicating with the cleaner outlet of the cleaner source, a second end of the second cleaner delivery tube communicating with the second end of the cleaner nozzle; and
the cleaning device comprises a first pressure regulating valve and a second pressure regulating valve, wherein the first pressure regulating valve is arranged on the first cleaning agent conveying pipe, and the second pressure regulating valve is arranged on the second cleaning agent conveying pipe.
3. The cleaning device of claim 1, wherein the first and second ends of the cleaner nozzle opposite in length are open to form two cleaner inlets, the cleaning device further comprising a three-way valve having a first inlet in communication with the cleaner outlet of the cleaner source, a first cleaner outlet in communication with the first end of the cleaner nozzle, and a second cleaner outlet in communication with the second end of the cleaner nozzle.
4. A cleaning device according to claim 3 wherein the three-way valve comprises:
a valve body having the first inlet, the first detergent outlet, and the second detergent outlet, the first inlet being located between the first detergent outlet and the second detergent outlet in a first direction; and
A spool movably disposed in the valve body in the first direction between a closed position, a first open position, and a second open position, the spool having a first cover portion and a second cover portion, wherein the first inlet is located between the first cover portion and the second cover portion of the spool in the closed position in the first direction, the first cover portion of the spool in the closed position covers the first detergent outlet, the second cover portion of the spool in the closed position covers the second detergent outlet, the first cover portion of the spool in the first open position covers the second detergent outlet or is located between the first inlet and the second detergent outlet in the first direction, the first cover portion of the spool in the second open position is located between the first inlet and the first outlet in the first direction, and the first cover portion of the spool in the second open position is located between the first inlet and the first outlet in the first direction.
5. The cleaning device of claim 4, wherein the valve spool is a magnetic piece or is made of a ferromagnetic material, the cleaning device further comprising a second electromagnet that cooperates with the valve spool to move the valve spool between the closed position, the first open position, and the second open position.
6. The cleaning apparatus of claim 1, wherein a length direction of the slider coincides with a length direction of the cleaning agent nozzle, and a ratio of the length of the cleaning agent nozzle to the length of the slider is greater so that at least a portion of at least one of the cleaning agent ejection holes is always exposed.
7. The cleaning device of claim 1, further comprising a first stop and a second stop disposed within the cleaner nozzle in spaced relation along a length of the cleaner nozzle, wherein the slider and each of the cleaner spray holes are located between the first stop and the second stop along the length of the cleaner nozzle.
8. The cleaning device of claim 1, wherein the source of cleaning agent is a steam generator or a cleaning agent cartridge.
9. A range hood, comprising:
a wind wheel; and
a cleaning device according to any one of claims 1-8, at least a portion of the cleaning device's cleaner nozzle extending in the axial direction of the wind wheel, the at least a portion of the cleaner nozzle cooperating with the wind wheel for cleaning the wind wheel.
CN201810837233.5A 2018-07-26 2018-07-26 Cleaning device and smoke exhaust ventilator with same Active CN108709215B (en)

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CN109448530B (en) * 2018-12-26 2024-04-19 广东悠派智能展示科技股份有限公司 Display prop and display method based on simulated smoke exhaust ventilator cleaning principle

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CN208832536U (en) * 2018-07-26 2019-05-07 佛山市顺德区美的洗涤电器制造有限公司 Cleaning device and smoke exhaust ventilator with the cleaning device

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CN2494946Y (en) * 2001-08-26 2002-06-12 中山市家用电器总厂 Automatic cleaning kitchen ventilator for removing cooking fumes
CN2646593Y (en) * 2003-09-19 2004-10-06 陈阳 Smoke exhaust ventilator having automatic cleaning device
TWM320044U (en) * 2007-04-04 2007-10-01 Sz-Yin Lin Preheated water cleaning mechanism for fan vertical-type fume extractor
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