CN109798561B - Range hood with self-cleaning function - Google Patents
Range hood with self-cleaning function Download PDFInfo
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- CN109798561B CN109798561B CN201711147900.9A CN201711147900A CN109798561B CN 109798561 B CN109798561 B CN 109798561B CN 201711147900 A CN201711147900 A CN 201711147900A CN 109798561 B CN109798561 B CN 109798561B
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- Prior art keywords
- filter screen
- air
- range hood
- self
- impeller
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- 238000004140 cleaning Methods 0.000 title claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 239000007921 spray Substances 0.000 claims abstract description 21
- 238000007664 blowing Methods 0.000 claims abstract description 17
- 238000003860 storage Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 239000003517 fume Substances 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 abstract description 3
- 239000000779 smoke Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Ventilation (AREA)
Abstract
The utility model relates to a range hood with a self-cleaning function, which comprises a shell, a fan, a cleaning medium supply mechanism, a spray pipe, a power mechanism and a blowing mechanism, wherein a filter screen is arranged at an air inlet of the fan, a water outlet end of the cleaning medium supply mechanism is connected with a first end of the spray pipe, a second end of the spray pipe is arranged corresponding to the front side surface of the filter screen, the power mechanism is arranged on the fan and can drive the filter screen to rotate independently of an impeller, the blowing mechanism is used for blowing up cleaning medium in a volute, and an opening communicated with an air outlet of the blowing mechanism is formed in the bottom of the volute. In the state of the range hood, the fan drives the impeller to rotate, and at the moment, the power mechanism does not operate, and the filter screen is in a static state; when the range hood needs to be cleaned, the fan drives the impeller to rotate, meanwhile, the power mechanism drives the filter screen to rotate, at the moment, the spray pipe water flows out of the filter screen, the impeller and the volute to wash away, oil stain accumulation is avoided, a self-cleaning effect is achieved, and therefore the range hood can keep a good oil fume exhausting function.
Description
Technical Field
The utility model relates to a range hood with a self-cleaning function.
Background
In recent years, the living standard of people is continuously improved, the health and environmental awareness is increasingly enhanced, and people desire to have a healthy, clean and environmental-friendly home kitchen environment. Chinese patent CN200710051289 discloses a centrifugal purifying device for air and smoke dust and a method for manufacturing a rotary filter screen disk thereof, wherein the rotary filter screen disk comprises a screen disk skeleton and radial filter screens uniformly wound and arranged along the circumferential direction. The filter screen disk is formed by winding one filter screen wire, the manufacturing method is complicated, the filter screen wire is easy to corrode and break, the filter screen wires are densely staggered in the middle area of the filter screen disk, so that the oil smoke wind resistance is large, the oil smoke flows smoothly to block the filter screen, the oil smoke separating efficiency is reduced very rapidly, and the service life is shortened seriously.
In order to solve the above problems, the chinese patent application No. CN 204285570U discloses a rotary centrifugal oil-smoke separator (application No. 201420732722.1) which includes a rotary net disk and a wind wheel, wherein the rotary net disk is installed at the wind inlet of the wind wheel, the edge of the rotary net disk is connected with the edge of the wind wheel front ring or the center of the rotary net disk is connected with the center of the wind wheel or the rotary net disk is integrally formed with the wind wheel front ring.
The oil fume purification can be realized to a certain extent by the two structures, but in the use process, grease adhered to the oil fume purification is naturally removed through centrifugal action, and the grease which is difficult to adhere to is still unavoidable after long-time use, so that the filtering performance of the oil fume purification is affected.
Disclosure of Invention
Aiming at the current state of the art, the utility model provides the range hood with self-cleaning function, which can directly wash by a cleaning medium to remove the greasy dirt on a fan and a filter screen.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a range hood with self-cleaning function, includes shell and fan, the fan is located in the shell and has spiral case and impeller, the air intake department of fan is provided with filter screen, its characterized in that: the cleaning device comprises a cleaning medium feeding mechanism, a spray pipe, a power mechanism and a blowing mechanism, wherein the water outlet end of the cleaning medium feeding mechanism is connected with the first end of the spray pipe, the second end of the spray pipe is arranged corresponding to the front side face of the filter screen, the power mechanism is arranged on the fan and can drive the filter screen to rotate independently of the impeller, and an opening communicated with the air outlet of the blowing mechanism is formed in the bottom of the volute.
In the above scheme, the power mechanism is a motor, the motor is arranged on the front side of the filter screen through a bracket, and an output shaft of the motor faces the filter screen and is fixedly connected with the central part of the filter screen. With the adoption of the structure, when the range hood is in a range hood state, the fan operates to drive the impeller to rotate, and at the moment, the motor does not operate, and the filter screen is in a static state; when the range hood needs to be cleaned, the fan operates to drive the impeller to rotate, meanwhile, the motor operates to drive the filter screen to rotate, and at the moment, the spray pipe water flows out to wash the filter screen, the impeller and the volute, so that oil stain accumulation is avoided, and a self-cleaning effect is achieved.
Preferably, the blowing mechanism comprises a blower and an air guide pipe, the blower is arranged in the shell, the outlet end of the blower is connected with the air inlet end of the air guide pipe, and the air outlet end of the air guide pipe is butted with the opening at the bottom of the volute. When the cleaning medium accumulated in the volute is less, the impeller can not be contacted with the cleaning medium in the rotation process, the cleaning medium brought up by the air quantity rotated by the impeller is insufficient to have a good scouring effect, and the air blowing mechanism is arranged to blow up the cleaning medium in the volute and combine with the rotating air quantity of the impeller, so that the better scouring effect on the impeller and the inner wall of the volute is achieved.
Preferably, the air inlet end of the air guide pipe is shaped into a circular port matched with the outlet end of the blower, the air outlet end of the air guide pipe is shaped into a long hole arranged along the length direction of the impeller blade, and the cross section of the air guide pipe gradually transits from the circular shape to the flat shape from the upstream to the downstream according to the air circulation direction. The middle part of the air guide pipe forms a throat part, and the inner sectional area of the throat part is 0.6-0.9 times of the inner sectional area of the air inlet end. The air guide pipe can be a Laval accelerating pipe, which is beneficial to increasing the wind speed and improving the blowing effect on the cleaning medium.
As an improvement, the bottom of the air blower is provided with a drain outlet for the cleaning medium to flow out, and the drain outlet is provided with a valve. The air guide pipe and the air blower are used as a sewage discharging structure at the same time, so that the used cleaning medium in the volute is conveniently discharged.
In each of the above preferred embodiments, the cleaning medium supply mechanism includes a water storage tank, a water pump, and a water guide pipe, where the water storage tank is used to store the cleaning medium, a first end of the water guide pipe is connected with the water storage tank, a second end of the water guide pipe is connected with a water inlet end of the water pump, and a water outlet end of the water pump is connected with a first end of the spray pipe. The water pump of the present utility model may be mounted on top of the housing.
And the filter screen is further improved, the filter screen gradually protrudes towards the impeller from the edge to the central part, and a plurality of oil filtering holes are formed in the filter screen at intervals. By adopting the structure, water sprayed by the spray pipe can enter the volute through the oil filtering hole on the filter screen after flushing the filter screen, and further washes the inner wall of the volute and the impeller.
Further improved, the front side surface of the filter screen is provided with a water guide groove which is arranged along the radial direction, and the outer end of the water guide groove extends to the edge of the filter screen. The edge of the filter screen is provided with a retainer ring extending forwards along the circumferential direction, and the retainer ring is provided with a through hole communicated with the water guide groove. When the structure is arranged, the liquid outlet amount of the spray pipe is large, the cleaning medium can flow along the edge of the filter screen through the through hole on the baffle under the action of centrifugal force and enter the volute, so that the reverse sputtering caused by the overlarge amount of the cleaning medium can be prevented, the cleaning medium can be conveniently and rapidly enter the volute, and a better cleaning effect is achieved.
Compared with the prior art, the utility model has the advantages that: the utility model is provided with a cleaning medium supply mechanism, a spray pipe, a power mechanism and a blowing mechanism, wherein the filter screen can rotate through the power mechanism, and in the state of the range hood, the fan operates to drive the impeller to rotate, and at the moment, the power mechanism does not operate, and the filter screen is in a static state; when the range hood needs to be cleaned, the fan operates to drive the impeller to rotate, meanwhile, the power mechanism operates to drive the filter screen to rotate, at the moment, the spray pipe water flows out of the filter screen, the impeller and the volute to wash away oil stains, the self-cleaning effect is achieved, and therefore the range hood keeps a good oil fume exhausting function.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model (hidden part of the housing);
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a schematic view of a filter screen according to an embodiment of the present utility model;
FIG. 5 is a schematic view of the structure of an airway in an embodiment of the present utility model;
fig. 6 is a cross-sectional view of fig. 5.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 6, the range hood with self-cleaning function of the present embodiment includes a housing 1, a fan 2, a power mechanism 3, a cleaning medium supply mechanism 4, a spray pipe 5 and a blowing mechanism 6, the fan 2 is disposed in the housing 1 and has a volute 21 and an impeller 22, and a filter screen 7 is disposed at an air inlet of the fan 2.
The cleaning medium supply mechanism 4 of this embodiment includes a water storage tank 41, a water pump 42 and a water guide pipe 43, the water storage tank 41 is used for storing cleaning medium, a first end of the water guide pipe 43 is connected with the water storage tank 41, a second end of the water guide pipe 43 is connected with a water inlet end of the water pump 42, a water outlet end of the water pump 42 is connected with a first end of the spray pipe 5, and the water pump 42 can be mounted at the top of the housing 1.
In this embodiment, the power mechanism 3 is disposed on the fan 2 and can drive the filter screen 7 to rotate independently of the impeller 22, and the power mechanism 3 in this embodiment is a motor. Specifically, the front side of the filter screen 7 is provided with a bracket 72 connected with the edge of the fan 2, and the motor is arranged on the bracket 72. The output shaft 31 of the motor is arranged towards the filter screen 7 and is fixedly connected with the central part of the filter screen 7, when the motor operates, the filter screen 7 can be driven to rotate, and when the motor stops operating, the filter screen 7 is static, namely the dynamic and static states of the filter screen 7 are irrelevant to whether the fan 2 operates.
The second end of the nozzle 5 in this embodiment is arranged corresponding to the front side of the filter screen 7, and the second end of the nozzle 5 is located in front of the front side of the filter screen 7 with a small gap from the front side of the filter screen 7. The filter screen 7 of this embodiment gradually protrudes to impeller 22 direction from the edge to the central part, and the filter screen 7 is last to open and to have a plurality of interval arrangement's oil filter hole 71, opens on the leading flank of filter screen 7 has the guiding gutter 73 of radial arrangement, and the outer end of this guiding gutter 73 extends to filter screen 7 border department, and guiding gutter 73 is many and is radial arrangement on filter screen 7. The edge of the filter screen 7 is provided with a retainer 74 extending forwards along the circumferential direction, and the retainer 74 is provided with a through hole 741 communicated with the corresponding water guide groove 73. When the liquid output of the spray pipe 5 is large, the cleaning medium can flow to the edge of the filter screen 7 along the water guide groove 73 under the action of centrifugal force and enter the volute 21 through the through holes 741 on the check ring 74, so that not only can the reverse sputtering caused by the excessive cleaning medium quantity be prevented, but also the cleaning medium can be conveniently and quickly enter the volute 21, and a better cleaning effect is achieved.
The blower mechanism 6 is used to blow up the cleaning medium in the volute 21. When the amount of the cleaning medium accumulated in the volute 21 is small, the impeller 22 may not contact the cleaning medium in the rotation process, the cleaning medium brought up by the air quantity rotated by the impeller 22 is insufficient to have a good flushing effect, and the air blowing mechanism 6 is arranged to blow up the cleaning medium in the volute 21 and combine with the rotation air quantity of the impeller 22, so that a good flushing effect on the impeller 22 and the inner wall of the volute 21 is achieved.
Specifically, the blower mechanism 6 of the present embodiment includes a blower 61 and an air guide duct 62, the blower 61 is disposed in the housing 1 and located outside the volute 21, an outlet end of the blower 61 is connected to an air inlet end of the air guide duct 62, and an opening 211 communicating with an air outlet end of the air guide duct 62 is formed in the bottom of the volute 21. The air inlet end of the air guide pipe 62 is shaped into a circular port 621 matched with the outlet end of the blower 61, the air outlet end of the air guide pipe 62 is shaped into a long hole 622 arranged along the length direction of the blade of the impeller 22, the cross section of the air guide pipe 62 gradually transits from the circular shape to the flat shape from the upstream to the downstream according to the air flowing direction, and a bending part 624 gradually transiting smoothly upwards is arranged between the rear part of the air guide pipe 62 and the long hole 622, so that the long hole 622 is accurately butted with the opening 211. The middle part of the air guide pipe 62 forms a throat portion 623, and the inner sectional area of the throat portion 623 is 0.6-0.9 times of the inner sectional area of the air inlet end. The air guide pipe 62 may be a laval accelerating pipe, which is advantageous to increase the air speed and enhance the blowing effect on the cleaning medium. The bottom of the blower 61 is provided with a drain 611 through which the cleaning medium flows out, and the drain 611 is provided with a valve. The air guide pipe 62 and the blower 61 of the present embodiment are used as a sewage draining structure, so that the used cleaning medium in the volute 21 can be conveniently discharged.
With the range hood of the embodiment, in the state of the range hood, the motor 3 does not operate, the impeller 22 of the fan 2 rotates, and the filter screen 7 is stationary; when the range hood needs to be cleaned, the motor 3 runs to drive the filter screen 7 to synchronously rotate with the impeller 22 of the fan 2, at the moment, water is sprayed to wash the filter screen 7 through the water outlet of the spray pipe 5, and as the filter screen 7 gradually protrudes towards the impeller 22 from the edge to the central part, a cleaning medium after washing the filter screen 7 is facilitated to enter the volute 21 through the oil filtering hole 71, and meanwhile, the air blowing mechanism 6 blows up the cleaning medium in the volute 21 to strengthen the washing force of the cleaning medium on the inner wall of the volute 21 and the impeller 22, so that the accumulation of greasy dirt is avoided, and the self-cleaning effect is achieved.
Claims (8)
1. The utility model provides a range hood with self-cleaning function, includes shell (1) and fan (2), in shell (1) are located to fan (2) and have spiral case (21) and impeller (22), the air intake department of fan (2) is provided with filter screen (7), its characterized in that: the cleaning device is characterized by further comprising a cleaning medium supply mechanism (4), a spray pipe (5), a power mechanism (3) and a blowing mechanism (6), wherein the water outlet end of the cleaning medium supply mechanism (4) is connected with the first end of the spray pipe (5), the second end of the spray pipe (5) is arranged corresponding to the front side surface of the filter screen (7), the power mechanism (3) is arranged on the fan (2) and can drive the filter screen (7) to rotate independently of the impeller (22), and an opening (211) communicated with the air outlet of the blowing mechanism (6) is formed in the bottom of the volute (21);
the power mechanism (3) is a motor, the motor is arranged at the front side of the filter screen (7), and an output shaft (31) of the motor is arranged towards the filter screen (7) and is fixedly connected with the central part of the filter screen (7);
the air blowing mechanism (6) comprises an air blower (61) and an air guide pipe (62), the air blower (61) is arranged in the shell (1), the outlet end of the air blower (61) is connected with the air inlet end of the air guide pipe (62), and the air outlet end of the air guide pipe (62) is in butt joint with an opening (211) at the bottom of the volute (21).
2. The range hood with self-cleaning function according to claim 1, wherein: the air inlet end of the air guide pipe (62) is formed into a circular opening (621) matched with the outlet end of the air feeder (61), the air outlet end of the air guide pipe (62) is formed into long holes (622) arranged along the length direction of the blades of the impeller (22), and the cross section of the air guide pipe (62) gradually transits from the circular shape to the flat shape from the upstream to the downstream according to the air circulation direction.
3. The range hood with self-cleaning function according to claim 2, characterized in that: the middle part of the air guide pipe (62) forms a throat part (623), and the inner sectional area of the throat part (623) is 0.6-0.9 times of the inner sectional area of the air inlet end.
4. The range hood with self-cleaning function according to claim 1, wherein: a drain outlet (611) for the cleaning medium to flow out is arranged at the bottom of the air blower (61), and a valve is arranged on the drain outlet (611).
5. The range hood with self-cleaning function according to claim 1, wherein: the cleaning medium supply mechanism (4) comprises a water storage tank (41), a water pump (42) and a water guide pipe (43), wherein the water storage tank (41) is used for storing cleaning medium, a first end of the water guide pipe (43) is connected with the water storage tank (41), a second end of the water guide pipe (43) is connected with a water inlet end of the water pump (42), and a water outlet end of the water pump (42) is connected with a first end of the spray pipe (5).
6. The range hood with self-cleaning function according to any one of claims 1 to 5, characterized in that: the filter screen (7) gradually protrudes towards the impeller (22) from the edge to the central part, and a plurality of oil filtering holes (71) which are arranged at intervals are formed in the filter screen (7).
7. The range hood with self-cleaning function according to claim 6, wherein: the front side surface of the filter screen (7) is provided with a water guide groove (73) which is arranged along the radial direction, and the outer end of the water guide groove (73) extends to the edge of the filter screen (7).
8. The range hood with self-cleaning function according to claim 7, wherein: the edge of the filter screen (7) is provided with a retainer ring (74) extending forwards along the circumferential direction, and the retainer ring (74) is provided with a through hole (741) communicated with the water guide groove (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711147900.9A CN109798561B (en) | 2017-11-17 | 2017-11-17 | Range hood with self-cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711147900.9A CN109798561B (en) | 2017-11-17 | 2017-11-17 | Range hood with self-cleaning function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109798561A CN109798561A (en) | 2019-05-24 |
| CN109798561B true CN109798561B (en) | 2024-01-16 |
Family
ID=66554908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711147900.9A Active CN109798561B (en) | 2017-11-17 | 2017-11-17 | Range hood with self-cleaning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109798561B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203454242U (en) * | 2013-08-26 | 2014-02-26 | 广东美的厨房电器制造有限公司 | Range hood and cleaning system thereof |
| CN203916243U (en) * | 2014-06-17 | 2014-11-05 | 季新粱 | Auto purification centrifugal type filter |
| CN104421986A (en) * | 2013-08-26 | 2015-03-18 | 广东美的厨房电器制造有限公司 | Range hood |
| CN106678915A (en) * | 2017-02-14 | 2017-05-17 | 浙江工业大学 | Direct-current drive reverse rotating range hood and lampblack discharge and self-cleaning method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207422311U (en) * | 2017-11-17 | 2018-05-29 | 宁波方太厨具有限公司 | A kind of range hood with self-cleaning function |
-
2017
- 2017-11-17 CN CN201711147900.9A patent/CN109798561B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203454242U (en) * | 2013-08-26 | 2014-02-26 | 广东美的厨房电器制造有限公司 | Range hood and cleaning system thereof |
| CN104421986A (en) * | 2013-08-26 | 2015-03-18 | 广东美的厨房电器制造有限公司 | Range hood |
| CN203916243U (en) * | 2014-06-17 | 2014-11-05 | 季新粱 | Auto purification centrifugal type filter |
| CN106678915A (en) * | 2017-02-14 | 2017-05-17 | 浙江工业大学 | Direct-current drive reverse rotating range hood and lampblack discharge and self-cleaning method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109798561A (en) | 2019-05-24 |
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