CN105866073B - For detecting the device and household electrical appliance of attachment magnitude - Google Patents
For detecting the device and household electrical appliance of attachment magnitude Download PDFInfo
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- CN105866073B CN105866073B CN201610196486.XA CN201610196486A CN105866073B CN 105866073 B CN105866073 B CN 105866073B CN 201610196486 A CN201610196486 A CN 201610196486A CN 105866073 B CN105866073 B CN 105866073B
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- transparent surface
- attachment
- magnitude
- incidence
- detecting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention discloses a kind of for detecting the device and household electrical appliance of attachment magnitude, wherein, device for detecting attachment magnitude includes lens, light emitting part, light receiving piece and circuit board, wherein, the lens have transparent surface, the exit facet opposite with transparent surface, and multiple planes of incidence between the transparent surface and exit facet, setting at an acute angle between the plane of incidence and the transparent surface；The light emitting part is arranged towards the plane of incidence, and the light receiving piece is arranged towards the exit facet, the light emitting part and light receiving piece with the circuit board electrical connection；The circuit board is for driving the light emitting part to shine, and for receiving the light sensation amount signal of the light receiving piece, and the case where judge the attachment of attachment at the transparent surface according to the light sensation amount signal.Technical solution of the present invention can accurately detect the pollutant magnitude being attached on collector surface.
Description
Technical field
It is the present invention relates to field of home appliance technology, in particular to a kind of for detecting the device and household of attachment magnitude
Electric appliance.
Background technique
Currently, the component of the electric appliance or electric appliance that are exposed in oil smoke surroundings, the surface contacted with oil smoke can be with the time
Accumulation adhere to one layer of pollutant, such as the greasy dirt of liquid stickiness.These pollutants or the performance for influencing electric appliance or electric component,
Or deteriorate the hygienic conditions of electric appliance or electric component.Therefore, it is necessary to propose a kind of to carry out sample detecting to these pollutants
Device, to remind user to clean or make electric appliance automatic trigger cleaning procedure accordingly itself.
Summary of the invention
The main object of the present invention is to provide a kind of for detecting the device of attachment magnitude, it is desirable to provide one kind can essence
Really detect the device for the pollutant magnitude being attached on collector surface.
To achieve the above object, proposed by the present invention for detecting the device of attachment magnitude, including lens, light emitting
Part, light receiving piece and circuit board, wherein
The lens have a transparent surface, the exit facet opposite with transparent surface, and positioned at the transparent surface and exit facet it
Between multiple planes of incidence, setting at an acute angle between the plane of incidence and the transparent surface；
The light emitting part is arranged towards the plane of incidence, and the light receiving piece is arranged towards the exit facet, the light
Emit part and light receiving piece with the circuit board electrical connection；
The circuit board is for driving the light emitting part to shine, and the light sensation amount letter for receiving the light receiving piece
Number, and the case where judge the attachment of attachment at the transparent surface according to the light sensation amount signal.
Preferably, the angle between the plane of incidence and the transparent surface is 20 to 60 degree.
Preferably, the angle between each plane of incidence and the transparent surface is equal.
Preferably, the transparent surface is parallel with the exit facet.
Preferably, the material of the lens is any in polycarbonate, polymethyl methacrylate and polypropylene.
Preferably, the transparent surface is equipped with diffusing structure.
Preferably, the transparent surface is kidney-shaped, and the quantity of the plane of incidence is two, and is respectively adjacent to the transparent surface
The setting of two arc sides.
Preferably, the quantity of the light emitting part is identical as the quantity of the plane of incidence, the light emitting part with it is described enter
Face abutting is penetrated, the light receiving piece is abutted with the exit facet.
Preferably, which further includes shell, the lens, light emitting part, light-receiving
Part and circuit board are respectively positioned in the shell, and the transparent surface exposes to the shell.
The present invention also proposes a kind of household electrical appliance, including the device for detecting attachment magnitude, for detecting attachment
The device of object amount value, including lens, light emitting part, light receiving piece and circuit board, wherein
The lens have a transparent surface, the exit facet opposite with transparent surface, and positioned at the transparent surface and exit facet it
Between multiple planes of incidence, setting at an acute angle between the plane of incidence and the transparent surface；
The light emitting part is arranged towards the plane of incidence, and the light receiving piece is arranged towards the exit facet, the light
Emit part and light receiving piece with the circuit board electrical connection；
The circuit board is for driving the light emitting part to shine, and the light sensation amount letter for receiving the light receiving piece
Number, and the case where judge the attachment of attachment at the transparent surface according to the light sensation amount signal.
The present invention is used to detect the device of attachment magnitude by being obliquely installed multiple planes of incidence with respect to transparent surface, such as
This, the light that light emitting part issues can be more gathered at transparent surface after lens reflect, and through the attachment on the outside of the transparent surface
From exit face after object reflection, larger due to being incident upon light quantity at transparent surface, the present invention can be examined more precisely
Survey the consecutive variations of attachment magnitude on the outside of transparent surface.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of device one embodiment of the present invention for detecting attachment magnitude；
Fig. 2 is in Fig. 1 for detecting the decomposed structural schematic diagram of the device of attachment magnitude；
Fig. 3 is the structural schematic diagram of another angle of structure in Fig. 2；
Fig. 4 is in Fig. 1 for detecting the schematic top plan view of the device of attachment magnitude；
Fig. 5 is the sectional view in Fig. 4 along V-V line；
Fig. 6 is in Fig. 1 for detecting the partial structure diagram of the device of attachment magnitude；
Fig. 7 is the structural schematic diagram of another angle of lens in Fig. 6；
Fig. 8 is the schematic diagram of a scenario for being applied to kitchen ventilator for detecting the device of attachment magnitude in Fig. 1.
Drawing reference numeral explanation:
| Label | Title | Label | Title | Label | Title |
| 1 | Lens | 2 | Light emitting part | 101 | Attachment detection device |
| 11 | Transparent surface | 3 | Light receiving piece | 102 | Display module |
| 111 | Pit | 4 | Circuit board | 103 | Auditory tone cues module |
| 12 | Exit facet | 5 | Shell | 200 | Cook workbench |
| 13 | The plane of incidence | 100 | Kitchen ventilator |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
The device proposed by the present invention for being used to detect attachment magnitude, please refers to Fig. 1 to Fig. 7, in one embodiment, the use
In detection attachment magnitude device include lens 1, light emitting part 2, light receiving piece 3 and circuit board 4, wherein
Lens 1 have transparent surface 11, the exit facet 12 opposite with transparent surface 11, and are located at transparent surface 11 and exit facet 12
Between multiple planes of incidence 13, setting at an acute angle between the plane of incidence 13 and transparent surface 11；
Light emitting part 2 is arranged towards the plane of incidence 13, and light receiving piece 3 is arranged towards exit facet 12, light emitting part 2 and light-receiving
Part 3 is electrically connected with circuit board 4；
Circuit board 4 is for driving light emitting part 2 to shine, and the light sensation amount signal for receiving light receiving piece 3, and according to this
The case where light sensation amount signal judges the attachment of attachment at transparent surface 11.
In the present embodiment, lens 1 are made of transparent material, in order to which light is in 1 internal communication of lens.Specifically,
The plane of incidence 13 is connected to the periphery of exit facet 12, and exit facet 12 and the plane of incidence 13 are enclosed ladder in the side of transparent surface 11
Shape or polyhedron boss.On the outside of transparent surface 11 be attachment sampling face, and attachment at transparent surface 11 variation of magnitude with
The variation of amount of light at exit facet 12 is positively correlated.
Light emitting part 2 is generally used for infrared light of the transmitting for detection, and light receiving piece 3 is used for the optical signal that will receive
Be converted to electric signal.
Circuit board 4 according to the light sensation amount signal of light receiving piece 3 calculate transparent surface 11 absorbance, and using absorbance with it is attached
Preset relation between object amount value determine the attachment magnitude at transparent surface 11；Circuit board 4 is equipped with to drive light emitting
The luminous drive module of part 2, the signal amplification module of the electric signal to handle amplification light receiving piece 3 are stored with light quantity reference
Value or other applications memory modules, the processing module for calculating or assessing attachment magnitude.Wherein, light quantity reference
Acquirement when value can be in clean conditions for 11 lateral surface of transparent surface or be attached to the opaque covering of object completely.
When work, light receiving piece 3 receives the light come from attachment reflection, and the optical signal of current reflective light is turned
It changes electric signal into, then, the electric signal of current reflective light is amplified by signal amplification module on circuit board 4, handle
Light quantity reference point in module calls memory module simultaneously accordingly analyzes the electric signal of amplified current reflective light,
It analyzes result and host computer, such as kitchen ventilator is sent to by communication module.
The present invention is used to detect the device of attachment magnitude by being obliquely installed the opposite transparent surfaces 11 of multiple planes of incidence 13,
In this way, light emitting part 2 issue light through lens 1 refraction after can more be gathered at transparent surface 11, and through the transparent surface 11 outside
It is emitted after the attachment reflection of side from exit facet 12, larger due to being incident upon light quantity at transparent surface 11, the present invention can be with
More precisely detect the consecutive variations of 11 outside attachment magnitude of transparent surface.
Further, the angle between the plane of incidence 13 and transparent surface 11 is 20 to 60 degree.
In the present embodiment, it is to be understood that the angle between the plane of incidence 13 and transparent surface 11 is smaller, then through transparent surface
It is smaller that 11 outside attachments reflex to the light quantity at light-emitting surface, it is ensured that the accuracy of detection then needs to guarantee at exit facet 12
There are enough light quantities to be emitted.
Therefore, the angle at the plane of incidence 13 and transparent surface 11 is set as in 20 to 60 degree ranges, and arranges in pairs or groups and takes appropriate folding
Penetrate rate material, it is ensured that the amount of light at exit facet 12.Preferably, the angle between the plane of incidence 13 and transparent surface 11 is 30-
45 degree.
Further, the angle between each plane of incidence 13 and transparent surface 11 is equal.
In the present embodiment, road is broadcast in the most short pass that the light that each light emitting part 2 issues is propagated in lens 1 at transparent surface 11
Diameter is essentially identical, in this way, the light in the reflection of 11 outside attachment of transparent surface is also more uniform, is conducive to logical by light receiving piece 3
The magnitude for changing the light analysis attachment of attachment reflection is crossed, and reduces the deviation of detection.
Further, transparent surface 11 is parallel with exit facet 12.
In the present embodiment, the light that each light emitting part 2 issues, in lens 1 after the reflection of 11 outside attachment of transparent surface
The shortest path for inside propagating to exit facet 12 is essentially identical, in this way, the light quantity being emitted through exit facet 12 is more uniform, so as to
It avoids detection from biggish deviation occur, and then improves the precision of detection.
Further, the material of lens 1 is any in polycarbonate, polymethyl methacrylate and polypropylene.
In the present embodiment, it is to be understood that the device for detecting attachment magnitude of the present embodiment may be by
Applied in severe thermal environment, thus it is guaranteed that the thermal stability of lens 1, the detection accuracy for guaranteeing device is more important.
Polycarbonate, polymethyl methacrylate and polyacrylic heat resistance are preferable, conducive to the stability for keeping 1 function of lens.
Further, transparent surface 11 is equipped with diffusing structure, which can be multiple to open up on transparent surface 11
Pit 111, the multiple salient points or fin with 1 one of lens being arranged on transparent surface 11.
In the present embodiment, it by opening up multiple pits 111 on transparent surface 11, can be enhanced unrestrained anti-at transparent surface 11
The effect of penetrating, the amount of light at exit facet 12 increase, that is, in the case where entering light quantity on an equal basis at the plane of incidence 13, as pit 111 is slow
Slowly it is attached to object to fill up, the diffusing reflection at transparent surface 11 gradually weakens, and the amount of light at exit facet 12 utilizes this also with reduction
Kind variation can detect the magnitude variations of attachment.
Further, transparent surface 11 is kidney-shaped, and the quantity of the plane of incidence 13 is two, and is respectively adjacent to two arcs of transparent surface 11
Side setting.
In the present embodiment, specifically, two planes of incidence 13 are symmetrical about a vertical plane of transparent surface 11.By two plane of incidence 13
It is arranged on the length direction of transparent surface 11, is conducive to the attachment through 11 outside of transparent surface through the incident light of any plane of incidence 13
To be projected at exit facet 12 after object transmitting.
Further, the quantity of light emitting part 2 is identical as the quantity of the plane of incidence 13, and light emitting part 2 is abutted with the plane of incidence 13,
Light receiving piece 3 is abutted with exit facet 12.
In the present embodiment, when light emitting part 2 and the plane of incidence 13 are spaced apart, the light that light emitting part 2 issues exists
Biggish loss can occur before into lens 1, in this way, luminous energy is be easy to cause to waste.Similarly, when light receiving piece 3 and exit facet 12
Light spaced apart, projecting through exit facet 12, also can launch loss before entering light receiving piece 3.
Therefore, light emitting part 2, light receiving piece 3 are corresponded to and is abutted with the plane of incidence 13, exit facet 12, it can be farthest
It reduces, the loss that light generates when propagating in entire detection process, guarantees the precision of detection.
Further, which further includes shell 5, lens 1, light emitting part 2, light-receiving
Part 3 and circuit board 4 are respectively positioned in shell 5, and transparent surface 11 exposes to shell 5.
In the present embodiment, by the way that shell 5 is arranged, then it can enter lens 1 to avoid the light of environment or be directly entered light
Receiving element 3, i.e. generation din-light influence detection accuracy；In addition, the work that shell 5 can be protected or be fixed to the component in it
With, prevent lens 1, light emitting part 2, light receiving piece 3 and circuit board 4 it is any damage or relative position change, in this way, can
To improve the reliability of device detection.
The present invention also proposes a kind of household electrical appliance, which includes the device for detecting attachment magnitude, the use
In specific structure reference above-described embodiment of the device of detection attachment magnitude, since this household electrical appliance uses above-mentioned all realities
Whole technical solutions of example, therefore at least all beneficial effects brought by the technical solution with above-described embodiment are applied, herein
No longer repeat one by one.
In the present embodiment, household electrical appliance include but is not limited to the electric appliances such as kitchen ventilator, disinfection cabinet, air purifier.It please join
According to Fig. 8, in one example, household electrical appliance are kitchen ventilator 100, and culinary art workbench 200 is located at the lower section of kitchen ventilator 100, kitchen ventilator
100 include the device 101, display module 102 and auditory tone cues module 103 for detecting attachment magnitude, wherein
Device 101 for detecting attachment magnitude is installed on the inside of kitchen ventilator 100, at least transparent surface 11 of lens 1
It is exposed in the inner cavity or smoke duct of kitchen ventilator.Preferably, transparent surface 11 and horizontal plane.
The magnitude that the display of display module 102 is detected for detecting the device 101 of attachment magnitude, such as cleaned in kitchen ventilator
Display remains in the attachment magnitude on lens 1 later.
Auditory tone cues module 103 reaches certain threshold value to detect magnitude in the device 101 for detecting attachment magnitude
When, remind user to open the cleaning procedure of kitchen ventilator 100.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all in the present invention
Inventive concept under, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/be used in it indirectly
He is included in scope of patent protection of the invention relevant technical field.
Claims (10)
1. a kind of for detecting the device of attachment magnitude, be used for household electrical appliance, which is characterized in that including lens, light emitting part,
Light receiving piece and circuit board, wherein
The lens have transparent surface, the exit facet opposite with transparent surface, and between the transparent surface and exit facet
Multiple planes of incidence, setting at an acute angle between the plane of incidence and the transparent surface；
The light emitting part is arranged towards the plane of incidence, and the light receiving piece is arranged towards the exit facet, the light emitting
Part and light receiving piece with the circuit board electrical connection；
The circuit board is for driving the light emitting part to shine, and the light sensation amount signal for receiving the light receiving piece, and
The absorbance of the transparent surface is calculated according to the light sensation amount signal, and utilizes attachment at the absorbance and the transparent surface
Preset relation between magnitude judges the case where attachment of attachment at the transparent surface.
2. as described in claim 1 for detecting the device of attachment magnitude, which is characterized in that the plane of incidence and described
Angle between smooth surface is 20 to 60 degree.
3. as claimed in claim 2 for detecting the device of attachment magnitude, which is characterized in that each plane of incidence with it is described
Angle between transparent surface is equal.
4. as claimed in claim 2 or claim 3 for detecting the device of attachment magnitude, which is characterized in that the transparent surface and institute
It is parallel to state exit facet.
5. as claimed in claim 4 for detecting the device of attachment magnitude, which is characterized in that the material of the lens is poly-
It is any in carbonic ester, polymethyl methacrylate and polypropylene.
6. as described in claim 1 for detecting the device of attachment magnitude, which is characterized in that the transparent surface, which is equipped with, to be dissipated
Photo structure.
7. as claimed in claim 6 for detecting the device of attachment magnitude, which is characterized in that the transparent surface is kidney-shaped,
The quantity of the plane of incidence is two, and is respectively adjacent to the two arc sides setting of the transparent surface.
8. as described in claim 1 for detecting the device of attachment magnitude, which is characterized in that the quantity of the light emitting part
Identical as the quantity of the plane of incidence, the light emitting part is abutted with the plane of incidence, the light receiving piece and the exit facet
It abuts.
9. as described in claim 1 for detecting the device of attachment magnitude, which is characterized in that it further include shell, it is described
Mirror, light emitting part, light receiving piece and circuit board are respectively positioned in the shell, and the transparent surface exposes to the shell.
10. a kind of household electrical appliance, which is characterized in that including being used to detect attachment as described in claim 1-9 any one
The device of magnitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610196486.XA CN105866073B (en) | 2016-03-30 | 2016-03-30 | For detecting the device and household electrical appliance of attachment magnitude |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610196486.XA CN105866073B (en) | 2016-03-30 | 2016-03-30 | For detecting the device and household electrical appliance of attachment magnitude |
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| Publication Number | Publication Date |
|---|---|
| CN105866073A CN105866073A (en) | 2016-08-17 |
| CN105866073B true CN105866073B (en) | 2018-12-07 |
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| CN201610196486.XA Active CN105866073B (en) | 2016-03-30 | 2016-03-30 | For detecting the device and household electrical appliance of attachment magnitude |
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| CN (1) | CN105866073B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121115A (en) * | 2018-10-30 | 2020-05-08 | 宁波方太厨具有限公司 | Volute oil accumulation detection reminding method |
| CN112393305A (en) * | 2020-12-10 | 2021-02-23 | 珠海格力电器股份有限公司 | Equipment cleaning prompting method and device and range hood |
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| CN1743833A (en) * | 2004-09-02 | 2006-03-08 | 株式会社电装 | Raindrop sensor |
| CN101187620A (en) * | 2007-12-20 | 2008-05-28 | 西安劳特信息技术有限责任公司 | Back scattering type photoelectric dust density detector |
| CN203587495U (en) * | 2013-04-19 | 2014-05-07 | 士林电机厂股份有限公司 | Raindrop Sensing Device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5830229B2 (en) * | 2010-06-16 | 2015-12-09 | 直江津電子工業株式会社 | Wafer defect inspection system |
| JP2012058558A (en) * | 2010-09-10 | 2012-03-22 | Renesas Electronics Corp | Mask blank inspection method and manufacturing method of mask |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1743833A (en) * | 2004-09-02 | 2006-03-08 | 株式会社电装 | Raindrop sensor |
| CN101187620A (en) * | 2007-12-20 | 2008-05-28 | 西安劳特信息技术有限责任公司 | Back scattering type photoelectric dust density detector |
| CN203587495U (en) * | 2013-04-19 | 2014-05-07 | 士林电机厂股份有限公司 | Raindrop Sensing Device |
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| Publication number | Publication date |
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| CN105866073A (en) | 2016-08-17 |
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