CN109099486A - Fume exhaust fan - Google Patents
Fume exhaust fan Download PDFInfo
- Publication number
- CN109099486A CN109099486A CN201811122591.4A CN201811122591A CN109099486A CN 109099486 A CN109099486 A CN 109099486A CN 201811122591 A CN201811122591 A CN 201811122591A CN 109099486 A CN109099486 A CN 109099486A
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- CN
- China
- Prior art keywords
- cavity
- hole
- range hood
- detection device
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003517 fume Substances 0.000 title description 6
- 238000001514 detection method Methods 0.000 claims abstract description 58
- 239000000779 smoke Substances 0.000 claims abstract description 26
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003546 flue gas Substances 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 23
- 238000005192 partition Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 5
- 239000000565 sealant Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 claims description 3
- 230000005622 photoelectricity Effects 0.000 claims description 3
- 238000005034 decoration Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 208000002925 dental caries Diseases 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 235000019504 cigarettes Nutrition 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 239000004071 soot Substances 0.000 description 4
- 230000035508 accumulation Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F24C15/2021—Arrangement or mounting of control or safety systems
-
- 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
-
- 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
- F24C15/2035—Arrangement or mounting of filters
Abstract
The invention discloses a range hood, comprising: the box body assembly is provided with a smoke machine air inlet; the fan assembly is arranged in the box body assembly and is provided with a fan air inlet; smog concentration detection device, smog concentration detection device set up in just be in the box subassembly from the cigarette machine air intake arrives in the flue gas runner of fan air intake, smog concentration detection device includes shell body and circuit subassembly, wherein form airflow runner and inner chamber in the shell body inner chamber one end is seted up there is the unthreaded hole, airflow runner one end with the one end that this unthreaded hole was seted up to the inner chamber is linked together, the other end and outside air intercommunication, circuit subassembly set up in the inner chamber and be in from airflow runner arrives on the opposite direction in unthreaded hole, its simple structure can effectively protect smog concentration detection device, avoids the circuit subassembly in the smog concentration detection device to receive the pollution.
Description
Technical field
The present invention relates to kitchen appliance technical field more particularly to a kind of range hoods.
Background technique
In the related technology, the control mode of existing range hood is substantially based on manual operation, although having a small amount of such as language
The automatic control modes such as sound control system, gesture control, image/video control, but these automatic control modes still remain its own
Deficiency, such as higher cost, intelligence are short of or even some still need manpower intervention just effective.
The air force control of range hood is that range hood operates most frequent function.Most of the time, user is
When culinary art, need to switch over gear operation inevitably can cause to do if carrying out manual switching operation at this time to culinary art
It disturbs, especially to the unfamiliar people of culinary art.It is exactly that user often forgets about switching gear in time there are also a kind of more common situation,
When culinary art is converted to big oil smoke situation by small oil smoke situation, forget to switch gear in time, it is largely excessive thus to will cause oil smoke,
So that pollution kitchen.The consequence of such case is the most serious, and it is bad to the usage experience of range hood thus to will lead to user.Institute
With present many range hood users, in order to avoid this kind of situation, the coping style taken all is the use in smoke machine
In the process, range hood is opened to the maximum into always gear.Although this can be avoided the hair of a large amount of excessive situation of the oil smoke of worst
It is raw, but the energy consumption for also resulting in range hood increases, noise problem larger always.
Additionally, there are more serious problems in the existing range hood using automatic control mode to be, what is used
In the process, the detection dress that the oil smoke part for entering air inlet through smoke machine air inlet can enter for realizing automatic control
In setting, after the long-time use of range hood, the oil smoke of accumulation can circuit unit inside serious pollution detection device, this meeting
Serious influence is caused on detection device, causes the reduction of detection device detection accuracy, and then influences range hood and automatically controls
Realization.
Summary of the invention
The present invention is directed to one of solve the problems, such as present in existing the relevant technologies at least to a certain extent, for this purpose, this hair
Bright to propose a kind of range hood, structure is simple, can effectively protect smokescope detection device, avoids smokescope detection device
Interior circuit unit is contaminated.
Above-mentioned purpose is achieved by the following technical solution:
A kind of range hood, comprising:
Box assembly, the box assembly have smoke machine air inlet；
Fan assembly, the fan assembly are set in the box assembly, and the fan assembly has air inlet；
Smokescope detection device, the smokescope detection device are set in the box assembly and are in from described
For smoke machine air inlet into the flue gas flow channel of the air inlet, the smokescope detection device includes outer housing and circuit group
Part offers light hole, the air-flow stream in described inner cavity one end wherein forming airflow path and inner cavity in the outer housing
Road one end is connected with one end that the inner cavity offers the light hole, and the other end is connected to outside air, the circuit unit
It is set in the inner cavity and on from the airflow path to the opposite direction in the light hole.
In some embodiments, the smokescope detection device is installed on the cabinet door-plate of the box assembly,
The air-flow through-hole for being connected to the airflow path and outside air is offered on the cabinet door-plate.
In some embodiments, the smokescope detection device includes the bottom case for being installed on the outer housing bottom,
The gas passage for being connected to the airflow path and the air-flow through-hole is offered on the bottom case.
In some embodiments, convex in the case where the lower surface of the gas passage periphery, the bottom case is provided with annular
Side, the lower chimb are embedded into the air-flow through-hole；
The upper surface of the gas passage periphery, the bottom case is provided with the upper chimb of annular, in the airflow path
The bottom of peripheral, the described outer housing is provided with annular nib, and the annular nib is in the upper chimb.
In some embodiments, it is provided with filter in the upper chimb, the bottom of the outer housing is by the mistake
Filter disc is pressed on the bottom case, and the air flowed through from the gas passage is flowed into the air-flow after filter filtering
In runner.
In some embodiments, offer block button hole on the bottom case, be provided on the outer housing with it is described
The buckle that block button hole is cooperatively connected；
It is provided with the first mounting hole on the cabinet door-plate, is provided on the outer housing and first mounting hole
Second mounting hole of cooperation.
In some embodiments, it is provided with Decorative Cover outside the box assembly, in the Decorative Cover and the cabinet
The air-flow gap for being connected to the air-flow through-hole and outside air is formed between component.
In some embodiments, the smokescope detection device includes the inner core being set in the inner cavity, in institute
The axis hole for being formed in inner core and being passed through for light is stated, forms installing port in described axis hole one end, the other end forms light outlet；
The circuit unit uses photoelectric sensor circuit unit, the photoemissive device or light of the circuit unit
Electric receiving device is installed in the installing port.
In some embodiments, the inner cavity includes interconnected the first cavity and the second cavity, wherein described
First cavity offers the light hole far from one end of second cavity, and the internal diameter of first cavity is less than described second
The internal diameter of cavity；
The inner core is set in first cavity, and the inner core includes the inner core of at least two pieces axially spaced distributions
Partition, the outer diameter of the inner core partition are equal with the internal diameter of first cavity.
In some embodiments, it is provided with an at least pillar piece between two pieces of axially adjacent inner core partitions,
The pillar piece is for linking together two pieces of axially adjacent inner core partitions.
1, in some embodiments, the circuit unit is located in second cavity, fills in second cavity
It is marked with sealant, sealed the circuit unit by the sealant of perfusion and is fixed on it together with the inner core
In the outer housing.
In some embodiments, one end of first cavity is provided with tail-hood in second cavity.
In some embodiments, the outer housing includes two, is respectively set in the inner cavity of two outer housings
There is the circuit unit, one of them described circuit unit includes photoemission cell and its subsidiary circuit board, described in another
Circuit unit includes photoelectric receiving tube and its subsidiary circuit board, the axis of the photoemission cell and the photoelectric receiving tube
Corner dimension between axis is 90 ° -150 °.
It in some embodiments, further include connector, the connector is used to two outer housings being connected to one
Rise and make the axis of the photoemission cell and the axis of the photoelectric receiving tube to be generally aligned in the same plane.
In some embodiments, an at least oil leaking hole is provided on the outside of the light hole, the smog is dense installing
The oil leaking hole is set be in the extreme lower position of its place plane when spending detection device, the liquid gathered inside the inner cavity can be through
The oil leaking hole flows out outward.
Compared with prior art, the present invention at least having the effect that
1, range hood of the invention can guarantee that in range hood operational process, smokescope detection device is in clean
, can be with effective protection smokescope detection device not by fume pollution among the protection of net air, and then guarantee its detection accuracy
With prolong its service life.
2, by the way that the smokescope detection device of photo-electric is arranged, this can be judged according to the luminous intensity that oil smoke scatters
When smog size, to actively adjust smoke machine air quantity, whole process is fully automated, and does not need user's intervention, and which
It is fast to detect speed, precision is high, low in cost.
Other beneficial outcomes of the invention will be explained in conjunction with attached drawing in a specific embodiment.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of range hood in the embodiment of the present invention；
Fig. 2 is the decomposition diagram of range hood in the embodiment of the present invention；
Fig. 3 is the assembling schematic diagram of smokescope detection device and cabinet door-plate in the embodiment of the present invention；
Fig. 4 is the decomposition diagram of smokescope detection device in the embodiment of the present invention；
Fig. 5 is the assembling schematic diagram of smokescope detection device in the embodiment of the present invention；
Fig. 6 is the structure sectional view of smokescope detection device in the embodiment of the present invention.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Embodiment one: as shown in Figures 1 to 6, the present embodiment provides a kind of range hoods, comprising:
Box assembly 1, box assembly 1 have smoke machine air inlet 100, and in the present embodiment, 1 lower end of box assembly is provided with
Exhaust fume collecting hood 6 forms the air inlet 100 in the exhaust fume collecting hood 6, the fume-exhausting of range hood can be improved by the exhaust fume collecting hood 6 of setting
Effect；
Fan assembly 2, fan assembly 2 are set in box assembly 1, and fan assembly 2 has air inlet 200；
Smokescope detection device 3, smokescope detection device 3 are set in box assembly 1 and are in from smoke machine and enter the wind
Mouth 100 is into the flue gas flow channel of air inlet 200, in this embodiment, it is preferred that smokescope detection device 3 is installed on wind
At machine air inlet 200, smokescope detection device 3 includes outer housing 31 and circuit unit 32, wherein being formed in outer housing 31
Airflow path 311 and inner cavity 312 offer light hole 3120 in 312 one end of inner cavity, and 311 one end of airflow path is opened with inner cavity 312
One end equipped with the light hole 3120 is connected, and the other end is connected to outside air, circuit unit 32 be set in inner cavity 312 and
On from airflow path 311 to the opposite direction in light hole 3120, or perhaps in from airflow path 311 to inner cavity 312
On direction far from 3120 one end of light hole.
The range hood of the present embodiment can guarantee that in range hood operational process, smokescope detection device is in clean
, can be with effective protection smokescope detection device not by fume pollution among the protection of net air, and then guarantee its detection accuracy
With prolong its service life, concrete principle will be illustrated one by one in content below.
Range hood provided by the present embodiment, comes with control device, control device respectively with fan assembly 2, cigarette
3 signal of mist concentration detection apparatus is connected.Preferably, the smokescope detection device 3 of the present embodiment uses photo-electric structure, energy
Enough to judge smog size at this time according to the luminous intensity that oil smoke scatters, control device is fed back according to smokescope detection device 3
Signal Regulation fan assembly 2 working condition, to realize the purpose for actively adjusting smoke machine air quantity, whole process is fully automated
Change, does not need user's intervention, and which detection speed is fast, precision is high, low in cost.
In the present embodiment, smokescope detection device 3 is installed on the cabinet door-plate 11 of box assembly 1, in cabinet door-plate
The air-flow through-hole 110 for being connected to airflow path 311 and outside air is offered on 11, when range hood works, outside air
It can be entered in airflow path 311 through the air-flow through-hole 110.
Further, the first mounting hole 111 is provided on cabinet door-plate 11, the first mounting hole 111 includes multiple and divides
It is distributed in the periphery of air-flow through-hole 110, the second mounting hole 315 with the cooperation of the first mounting hole 111 is provided on outer housing 31, is led to
Cabinet door-plate can be installed on for smokescope detection device 3 by crossing screw and sequentially passing through the second mounting hole 315 and the first mounting hole 111
On 11, structure is simple, convenient for the installation and fixation of smokescope detection device 3, in this embodiment, it is preferred that, smog
Concentration detection apparatus 3 is in horizontally disposed.
Further, smokescope detection device 3 includes the bottom case 33 for being installed on 31 bottom of outer housing, is opened on bottom case 33
Equipped with the gas passage 330 for being connected to the gentle recirculation hole 110 of airflow path 311, when range hood works, outside air can be through
Air-flow through-hole 110 and gas passage 330 enter in airflow path 311.In the present embodiment, gas passage 330 includes multiple
Uniformly distributed through-hole enters airflow path 311 with this convenient for the circulation of air and the energy biggish sundries of stop portions volume, together
When can also realize installation and fixation to filter 4.
Preferably, the lower surface of 330 periphery of gas passage, bottom case 33 is provided with the lower chimb 331 of annular, lower chimb
331 are embedded into air-flow through-hole 110, and assembly efficiency can be improved with this, and chimb 331 is furthermore descended to protrude cabinet door-plate 11, can be with
The greasy dirt of 11 inner wall of cabinet door-plate is avoided to stay polluted gas channel 330；
The upper surface of 330 periphery of gas passage, bottom case 33 is provided with the upper chimb 332 of annular, outside airflow path 311
Enclose, the bottom of outer housing 31 is provided with annular nib 313, annular nib 313 can be convenient for shell with this in the upper chimb 332
The connection of body 31 and bottom case 33, while the leakproofness that outer housing 31 and bottom case 33 connect can be improved, avoid the sky entered from the external world
Gas leaks at this.
In the present embodiment, filter 4 is provided in upper chimb 332, filter 4 is pressed on bottom by the bottom of outer housing 31
On shell 33, structure is simple, convenient for the installation and fixation of filter 4, meanwhile, the air flowed through from gas passage 330 is necessary
It is flowed into airflow path 311 after the filtering of filter 4, it is clean for can ensure that the air entered in airflow path 311 with this all
Net, the circuit unit 32 in smokescope detection device 3 will not be polluted.Air filtration pieces 4 can be using common
Air filting material, such as hepa filter paper, non-woven fabrics, filter cotton etc., in the present embodiment, preferred hepa filter paper can be to sky
Gas is effectively filtered.
Preferably, block button hole 333 is offered on the side of bottom case 33, is provided with and is buckled on the side of outer housing 31
The buckle 314 that hole 333 is cooperatively connected, outer housing 31 are detachably connected by the way of clamping with bottom case 33, structure
Simply, easy to connect, quick.
In the present embodiment, it is provided with Decorative Cover 5 outside box assembly 1, is formed between Decorative Cover 5 and box assembly 1
For being connected to the air-flow gap of air-flow through-hole 110 and outside air, when range hood works, the decorated cover 5 of outside air and case
Air-flow gap enters in air-flow through-hole 110 between body component 1, ingenious in design, reasonable, is able to achieve the maximization benefit in space
With.
In the present embodiment, smokescope detection device 3 includes the inner core 34 being set in inner cavity 312, in inner core 34
The axis hole 340 passed through for light is formed, forms installing port 341 in 340 one end of axis hole, the other end forms light outlet 342；
Specifically, circuit unit 32 use photoelectric sensor circuit unit, the photoemissive device of circuit unit 32 or
Person's photoelectric receiving device is installed in installing port 341, when wherein photoemissive device works the light that is issued through axis hole 340,
Toward external exposure after light outlet 342 and light hole 3120.Circuit unit 32 can be worked by the way that the longer axis hole in path is arranged
When the non-axis light that is issued be trapped in inner core, and the only linear light of transmission axis thereby ensures that the directionality of light.
In addition, can then reduce influence of the environment light of extraneous non-detection to light is received for photoelectric receiving device.
Preferably, inner cavity 312 includes interconnected the first cavity 3121 and the second cavity 3122, wherein in the first cavity
3121 one end far from the second cavity 3122 offer light hole 3120, and the internal diameter of the first cavity 3121 is less than the second cavity 3122
Internal diameter；
In the present embodiment, inner core 34 is set in the first cavity 3121, and inner core 34 includes at least two pieces axially spaced
The inner core partition 343 of distribution, the outer diameter of inner core partition 343 are equal with the internal diameter of the first cavity 3121.Preferably, inner core partition
343 and first cavity 3121 be all made of circular configuration, 343 outer wall of inner core partition is fitted closely with 3121 inner wall of the first cavity, can
To guarantee that light will not travel at photoelectric receiving device via the gap of the two, and then it ensure that the directionality of light, it is comprehensive
For increase the interference stability of environment resistant light.
Further, an at least pillar piece 344, pillar piece are provided between two pieces of axially adjacent inner core partitions 343
344 is circumferentially spaced, and pillar piece 344 passes through setting for two pieces of axially adjacent inner core partitions 343 to link together
Pillar piece 344 can increase the inner surface area of cavity between inner core partition 343, can in the case where having the inflow of greasy dirt gas
Greatly to increase adhered area, effectively avoid the photoemissive device of caudal end or photoelectric receiving device is contaminated can
Energy.
In addition, its circuit board of circuit unit 32 is located in the second cavity 3122, sealing is perfused in the second cavity 3122
Circuit unit 32 is sealed by the sealant of perfusion and is fixed on it in outer housing 31 together with inner core 34 by glue, knot
Structure is simple, and the stability and leakproofness of the installation of circuit unit 32 can be improved, the possibility that circuit unit 32 is contaminated is effectively reduced.
Further, one end of first cavity 3121 is provided with tail-hood 35 in the second cavity 3122, can be sealed with this
Second cavity 3122.
In the present embodiment, outer housing 31 includes two, is respectively arranged with circuit in the inner cavity of two outer housings 31 312
Component 32, one of circuit unit 32 include photoemission cell and its subsidiary circuit board, and photoemission cell can be laser
Transmitting tube or infrared transmitting tube, another circuit unit 32 include photoelectric receiving tube and its subsidiary circuit board, opto-electronic receiver
Pipe can be laser pick-off pipe or infrared receiving tube, the angle between the axis of photoemission cell and the axis of photoelectric receiving tube
Size is 90 ° -150 °, it is preferable that corner dimension is 120 °.
When detection, photoemission cell emits beam, and when the external world does not have oil smoke, i.e., no smoke particle is in photoemission cell
When with photoelectric receiving tube axis intersectional region, since two axis angles are between 90 ° -150 °, the light of photoemission cell sending
Line will not enter photoelectric receiving tube, and the voltage of photoelectric receiving tube does not generate response voltage at this time.When there is oil smoke in the external world, photoelectricity hair
The light of pipe sending is penetrated after the scattering of smoke particle, photoelectric receiving tube can be entered, opto-electronic receiver tube voltage generates anti-at this time
Voltage is answered, the size of response voltage determines that light is big by the light size that scattering enters, and response voltage is big, and vice versa.And it dissipates
It penetrates the strong and weak of light and is positively correlated with smokescope, it is possible thereby to which the response voltage size by photoelectric receiving tube knows oil smoke
The size of concentration.
It preferably, further include connector 36, connector 36 by two outer housings 31 for linking together and sending out photoelectricity
The axis of the axis and photoelectric receiving tube of penetrating pipe is generally aligned in the same plane, and one can guarantee that the rigidity between two outer housings 31 connects
It connects, two can improve the accuracy and reliability of photoemission cell and photoelectric receiving tube cooperation, and the cooperation for reducing the two as far as possible misses
Difference improves the accuracy of detection.
An at least oil leaking hole 3121 is provided on the outside of light hole 3120, in the present embodiment, oil leaking hole 3121 includes 2
And 3120 two sides of light hole are symmetrically disposed on, where so that oil leaking hole 3121 is in it when installing smokescope detection device 3
The extreme lower position of plane, the liquid gathered inside inner cavity 312 can flow out outward through oil leaking hole 3121, specifically, in inner cavity 312
The liquid such as oil smoke, water droplet of the inside accumulation eventually flow out outward due to gravity, and guarantee will not be in the inner cavity of outer housing 31
312 accumulations lead to excess contamination inner cavity 312.
When range hood starting, a large amount of soot gas are inhaled into inside the box assembly 1 of range hood, and pass through blower
Component 2 is discharged by air outlet seat.At this point, oil smoke can flow through the photo-electric smokescope detection device 3 in box assembly 1, although
Photoelectric sensor circuit unit 32 is mounted on the tail end of outer housing 31, passes from light hole 3120 and oil leaking hole 3121 to photo-electric
There is one section of longer cavity between sensor circuit unit 32, and there are also the obstructions and adherency of inner core partition 343 and pillar piece 344
Effect, however use and inevitably have a small amount of soot gas pollution photoelectric sensor circuit unit 32 for a long time, it causes to examine
Survey the reduction of precision.When using design of the invention, from the light hole 3120 of outer housing 31 and oil leaking hole 3121 via inner cavity
312 and airflow path 311 to air filtration pieces 4, the gas passage 330 of bottom case 33, cabinet door-plate 11 air-flow through-hole 100 formation
One airflow channel, the airflow channel are mutually interconnected by the air-flow gap between Decorative Cover 5 and box assembly 1 with outside air
It is logical.For details, reference can be made to shown in Fig. 6, the rectangular flow direction for representing outside air in smokescope detection device 3 of arrow in figure,
After range hood starting, the operation of fan assembly 2 can make entire airflow channel all in negative pressure state, and outside air can be from decoration
Air-flow gap between cover 5 and box assembly 1 is flowed into air-flow through-hole 100, and is eventually entered into inside range hood.Thus
It ensure that in range hood start-up course, the soot gas inside range hood not can enter the inner cavity of outer housing 31 completely
312, to completely avoid the contaminated possibility of photoelectric sensor circuit unit 32 positioned at inner cavity 312.Outside air
Opposite soot gas can be relatively cleaner, and have passed through the filtering of air filtration pieces 4, it is ensured that protection air will not pollute outer
The inner cavity 312 of shell 31.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (15)
1. a kind of range hood characterized by comprising
Box assembly (1), the box assembly (1) have smoke machine air inlet (100)；
Fan assembly (2), the fan assembly (2) are set in the box assembly (1), and the fan assembly (2) has wind
Machine air inlet (200)；
Smokescope detection device (3), the smokescope detection device (3) are set in the box assembly (1) and are in
From the smoke machine air inlet (100) into the flue gas flow channel of the air inlet (200), the smokescope detection device
It (3) include outer housing (31) and circuit unit (32), wherein forming airflow path (311) and inner cavity in the outer housing (31)
(312), it is offered light hole (3120) in the inner cavity (312) one end, described airflow path (311) one end and the inner cavity
(312) one end for offering the light hole (3120) is connected, and the other end is connected to outside air, and the circuit unit (32) sets
It is placed in the inner cavity (312) and on from the airflow path (311) to the opposite direction of the light hole (3120).
2. a kind of range hood according to claim 1, which is characterized in that smokescope detection device (3) installation
In on the cabinet door-plate (11) of the box assembly (1), offer on the cabinet door-plate (11) for being connected to the air-flow
The air-flow through-hole (110) of runner (311) and outside air.
3. a kind of range hood according to claim 2, which is characterized in that the smokescope detection device (3) includes
It is installed on the bottom case (33) of the outer housing (31) bottom, is offered on the bottom case (33) for being connected to the airflow path
(311) and the gas passage (330) of the air-flow through-hole (110).
4. a kind of range hood according to claim 3, which is characterized in that peripheral, described in the gas passage (330)
The lower surface of bottom case (33) is provided with the lower chimb (331) of annular, and the lower chimb (331) is embedded into the air-flow through-hole
(110) in；
The upper surface of the gas passage (330) periphery, the bottom case (33) is provided with the upper chimb (332) of annular, in institute
State airflow path (311) periphery, the bottom of the outer housing (31) is provided with annular nib (313), the annular nib (313)
In the upper chimb (332).
5. a kind of range hood according to claim 4, which is characterized in that be provided in the upper chimb (332)
The filter (4) is pressed on the bottom case (33) by the bottom of filter disc (4), the outer housing (31), logical from the gas
The air that road (330) flows through is flowed into the airflow path (311) after the filter (4) are filtered.
6. a kind of range hood according to claim 3, which is characterized in that offer block button hole on the bottom case (33)
(333), the buckle (314) being cooperatively connected with the block button hole (333) is provided on the outer housing (31)；
Be provided with the first mounting hole (111) on the cabinet door-plate (11), be provided on the outer housing (31) with it is described
The second mounting hole (315) of first mounting hole (111) cooperation.
7. a kind of range hood according to claim 2, which is characterized in that be provided with dress outside the box assembly (1)
Decorations cover (5), between the Decorative Cover (5) and the box assembly (1) formed for be connected to the air-flow through-hole (110) and outside
The air-flow gap of boundary's air.
8. a kind of range hood according to any one of claims 1 to 7, which is characterized in that the smokescope detection device
(3) include the inner core (34) being set in the inner cavity (312), form the axis hole passed through for light in the inner core (34)
(340), installing port (341) are formed in the axis hole (340) one end, the other end forms light outlet (342)；
The circuit unit (32) use photoelectric sensor circuit unit, the photoemissive device of the circuit unit (32) or
Person's photoelectric receiving device is installed in the installing port (341).
9. a kind of range hood according to claim 8, which is characterized in that the inner cavity (312) includes interconnected
First cavity (3121) and the second cavity (3122), wherein in first cavity (3121) far from second cavity (3122)
One end offer the light hole (3120), the internal diameter of first cavity (3121) is less than second cavity (3122)
Internal diameter；
The inner core (34) is set in first cavity (3121), and the inner core (34) includes at least two pieces axially spaced
The inner core partition (343) of distribution, the outer diameter of the inner core partition (343) are equal with the internal diameter of first cavity (3121).
10. a kind of range hood according to claim 9, which is characterized in that two pieces of axially adjacent inner cores every
An at least pillar piece (344) is provided between plate (343), the pillar piece (344) is used for axially adjacent two pieces are described interior
Core partition (343) links together.
11. a kind of range hood according to claim 9, which is characterized in that the circuit unit (32) is located at described the
In two cavitys (3122), it is perfused with sealant in second cavity (3122), it will be described by the sealant of perfusion
Circuit unit (32) seals and is fixed on it in outer housing (31) together with the inner core (34).
12. a kind of range hood according to claim 8, which is characterized in that in second cavity (3122) far from institute
The one end for stating the first cavity (3121) is provided with tail-hood (35).
13. a kind of range hood according to any one of claims 1 to 7, which is characterized in that the outer housing (31) includes two
It is a, the circuit unit (32) are respectively arranged in the inner cavity (312) of two outer housings (31), one of them described electricity
Road component (32) includes photoemission cell and its subsidiary circuit board, another described circuit unit (32) includes photoelectric receiving tube
And its subsidiary circuit board, the corner dimension between the axis of the photoemission cell and the axis of the photoelectric receiving tube are
90°-150°。
14. a kind of range hood according to claim 13, which is characterized in that further include connector (36), the connection
Part (36) by two outer housings (31) for linking together and connecing the axis of the photoemission cell with the photoelectricity
The axis of closed tube is generally aligned in the same plane.
15. a kind of range hood according to any one of claims 1 to 7, which is characterized in that the light hole (3120) outside
Side is provided with an at least oil leaking hole (3121), makes the oil leaking hole (3121) when installing smokescope detection device (3)
Extreme lower position in plane where it, the liquid gathered inside the inner cavity (312) can be past through the oil leaking hole (3121)
Outer outflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811122591.4A CN109099486A (en) | 2018-09-26 | 2018-09-26 | Fume exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811122591.4A CN109099486A (en) | 2018-09-26 | 2018-09-26 | Fume exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109099486A true CN109099486A (en) | 2018-12-28 |
Family
ID=64867819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811122591.4A Pending CN109099486A (en) | 2018-09-26 | 2018-09-26 | Fume exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109099486A (en) |
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| CN110261314A (en) * | 2019-06-20 | 2019-09-20 | 华帝股份有限公司 | Smoke detection device for range hood, range hood and smoke detection method of range hood |
| CN110617533A (en) * | 2019-09-25 | 2019-12-27 | 佛山市顺德区美的洗涤电器制造有限公司 | Kitchen appliance |
| CN110617536A (en) * | 2019-09-25 | 2019-12-27 | 佛山市顺德区美的洗涤电器制造有限公司 | Kitchen appliance |
| CN110617526A (en) * | 2019-09-25 | 2019-12-27 | 佛山市顺德区美的洗涤电器制造有限公司 | Kitchen device |
| WO2021056861A1 (en) * | 2019-09-25 | 2021-04-01 | 佛山市顺德区美的洗涤电器制造有限公司 | Kitchen device |
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