CN207691779U - A kind of induction switch structure for household electrical appliance - Google Patents
A kind of induction switch structure for household electrical appliance Download PDFInfo
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- CN207691779U CN207691779U CN201721636582.8U CN201721636582U CN207691779U CN 207691779 U CN207691779 U CN 207691779U CN 201721636582 U CN201721636582 U CN 201721636582U CN 207691779 U CN207691779 U CN 207691779U
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- 230000006698 induction Effects 0.000 title claims abstract description 27
- 230000001939 inductive effect Effects 0.000 claims abstract description 44
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 17
- 238000005286 illumination Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 6
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- 238000009434 installation Methods 0.000 claims description 2
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- 230000003760 hair shine Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
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- 238000001514 detection method Methods 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004425 Makrolon Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
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- 239000003344 environmental pollutant Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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Abstract
The utility model is related to a kind of induction switch structure for household electrical appliance, including knob part and inductive switch circuit board, the knob part includes upper cover, the first control region being provided on the bottom surface of upper cover centered on the center of circle of the upper cover；At least three first photoelectrical couplers are provided on inductive switch circuit board, each first photoelectrical coupler is respectively positioned on continuum at wherein the one of projection of above-mentioned first control region on inductive switch circuit board, and each first photoelectrical coupler spaced set, and on above-mentioned first control region it is circumferentially spaced be equipped at least three the firstth area, the first control region part between the firstth adjacent area is the secondth area, and the signal that each first photoelectrical coupler acquires in each firstth area is different from the signal acquired in each secondth area.The variation for the signal that the utility model is acquired according to the first photoelectrical coupler can determine whether the direction of rotation of knob part in turn, and can come to carry out gear or duration setting adjusting to knob part, and simple in structure, easy to operate and regulation and control are accurately.
Description
Technical field
The utility model is related to Household appliance switch field more particularly to a kind of inductive switch knots for household electrical appliance
Structure.
Background technology
Existing switching knob belongs to greatly the switching knob of physical connection, as potentiometer type switching knob, rod failure encode
The knob of formula switching knob, this physical connection not only in use can be because of the effect of attrition service life of mechanical structure, simultaneously
The knob of physical connection due to needing the trepanning on the operation panel of electrical equipment, destroys the integrality of device housings when in use
And leakproofness, cause the stress intensity of operation panel that can weaken significantly, the pollutant for also resulting in device external enters in equipment
Portion, to inside equipment parts and circuit constitute pollution and destroy, while also hampering operation panel to a certain extent
Cleaning.Electromagnetic stove generally uses magnetic inductive knob at present, as (Authorization Notice No. is Patent No. ZL200610033206.X
CN10100528B Chinese invention patent) discloses a kind of induction code switch comprising inductive switch plate and induction knob,
The inductive switch plate is separately positioned on the both sides of operation operation panel with induction knob, and passes through the first of inductive switch plate center
Permanent magnet and second permanent magnet at the induction knob center attract each other to position.It is not necessarily to the trepanning on panel in this way, it can
Effectively aqueous is avoided to overflow into inside kitchen range, while knob can be taken away, it is convenient for cleaning.
In addition, the structure that progress gear in existing kitchen range or timing are adjusted is typically mechanical knob or automatically controlled pure
Touch screen button, wherein mechanical knob needs the trepanning on stove panel as described above, tends to have soup and overflows into kitchen range, and
Be inconvenient to clean；And pure touch screen button is upper not very convenient in operation adjusting, needs ceaselessly to carry out actuation of keys until required
Gear or duration, and panel or when having water on hand, are commonly present the ineffective phenomenon of touch screen button.
Utility model content
First technical problem to be solved in the utility model is to provide a kind of simple in structure, behaviour for the prior art
Make the induction switch structure that convenient and operation is accurately used for household electrical appliance.
First technical problem to be solved in the utility model is provided a kind of with work shape for the prior art
State indicates the induction switch structure for household electrical appliance of function.
Third technical problem to be solved in the utility model is to provide one kind in dark environment for the prior art
The middle induction switch structure for household electrical appliance that can clearly distinguish the mark shut.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of induction for household electrical appliance is opened
Structure, including knob part and inductive switch circuit board are closed, which is arranged in the one side of household electrical appliance light penetrating panel, and feels
Inductive switch circuit board is arranged on the another side of the household electrical appliance light penetrating panel, and the knob part and inductive switch circuit board pair
It should be arranged, which is characterized in that the knob part includes upper cover, is provided with centered on the center of circle of the upper cover on the bottom surface of the upper cover
The first control region；At least three first photoelectrical couplers, each first photoelectric coupling are provided on above-mentioned inductive switch circuit board
Device is respectively positioned on continuum at wherein the one of projection of above-mentioned first control region on inductive switch circuit board, and each first light
Electric coupler spaced set, and on above-mentioned first control region it is circumferentially spaced be equipped at least three the firstth area, it is adjacent
The first control region part between firstth area is the secondth area, the signal that each above-mentioned first photoelectrical coupler acquires in each firstth area
It is different from the signal acquired in each secondth area.
Preferably, when first photoelectrical coupler is opposite with the firstth area, which believes without electric pulse
Number output, and it is opposite with the secondth area when, which has electric impulse signal output；Alternatively, the first photoelectricity coupling
When clutch is opposite with the firstth area, which has electric impulse signal output, and it is opposite with the secondth area when, first light
Electric coupler is exported without electric impulse signal.
Preferably, the reflecting element for the light that can reflect the transmitting of the first photoelectrical coupler is provided in firstth area, and institute
The light of the first photoelectrical coupler transmitting can not be reflected by stating the secondth area, so that the first photoelectrical coupler corresponding with the firstth area has
Electric impulse signal exports, and the first photoelectrical coupler corresponding with the secondth area is exported without electric impulse signal.
Preferably, be provided with light guide sheet between the upper cover and inductive switch circuit board, with above-mentioned in the light guide sheet
One area corresponding position is respectively arranged with the guide-lighting slot radially extended, and the angle of leaded light slot cell wall radially and horizontal plane is
45 ° or 135 °.So that exported without electric impulse signal when the first photoelectrical coupler is opposite with the firstth area, and it is corresponding with the secondth area
There is electric impulse signal output when opposite.
Preferably, being additionally provided with the second control region centered on the center of circle of above-mentioned upper cover on the upper lid, this second
Control region is the semi-transparent region that can be passed through for infrared light, and second control region is at the projection on above-mentioned inductive switch circuit board
It is circumferentially spaced to be equipped at least two second photoelectrical couplers.When human hand is touched by wherein each second photoelectrical coupler,
The signal value that receiver receives can change, according to this variable quantity, it can be determined that the operational order of user is intended to.
Preferably, being additionally provided at least one light source on the inductive switch circuit board, the upper cover is additionally provided with energy
The third control region of light transmission, and light guide structure is additionally provided on knob part, on the illumination which can send out light source is bright
State third control region.In this way when household electrical appliance are switched on, light source synchronous shines, and transparent area is shone by light guide structure, to carry
Show that user's machine is in open state, while the inductive switch can be illuminated by luminous third control region, so that user
Can clearly discrimination switch on cue mark.
Preferably, the knob part further includes the pedestal of light transmission, the pedestal and above-mentioned upper cover are setting up and down, the leaded light
Structure setting is in the space that the upper cover and pedestal surround；Also, the light guide structure includes that the first light guiding surface and second are guide-lighting
Face, first light guiding surface is opposite with above-mentioned light source, and the second light guiding surface is opposite with above-mentioned third control region, what above-mentioned light source was sent out
Light is after the first light guiding surface and the second light guiding surface, where above-mentioned third control region projects or at least illuminate the first light guiding surface
Region.
Preferably, being provided with the first permanent magnet on the knob part, second is provided on the inductive switch circuit board
Permanent magnet, the knob part and above-mentioned inductive switch circuit board are determined by attracting each other for the first permanent magnet and the second permanent magnet
Position；It is additionally provided with mounting disc on above-mentioned inductive switch circuit board, is separately provided for installing above-mentioned second in the mounting disc forever
First mounting groove of magnet and the second mounting groove for installing above-mentioned light source, under installation condition, the upper end edge energy of the mounting disc
It offsets with household electrical appliance light penetrating panel.The setting of mounting disc can not only make light source expose to the luminous intensity bigger of knob part, to
So that the light emission luminance higher of third control region, and light that light source is sent out can also be reduced to external diffusion and to inductive switch circuit
The photoelectrical coupler of plate generates interference.
By there are many concrete modes that above-mentioned light guide structure keeps third control region luminous, the preferred mode of one of which
For：First light guiding surface and the second light guiding surface are oppositely arranged, and the angle of the two and horizontal plane is respectively 45 ° and 135 °,
And tilt upward extension both with respect to horizontal plane；The illumination that the light source is sent out is incident upon on the first light guiding surface, through the first light guiding surface
After being reflected successively with the second light guiding surface, projected from above-mentioned third control region.
Preferably mode is another kind：The angle of first light guiding surface and horizontal plane is 45 ° and with respect to the horizontal plane inclines
Extend obliquely；Light guide is provided at second light guiding surface, the light that the light source is sent out shines after the reflection of the first light guiding surface
It is incident upon above-mentioned light guide and the light guide is made to shine.
Still another preferred mode is：First light guiding surface and the second light guiding surface are oppositely arranged, and the two and water
The angle of plane is respectively 45 ° and 135 °, and tilts upward extension both with respect to horizontal plane；First light guiding surface and the second leaded light
It is provided with guide-lighting disk between face, after the illumination that the light source is sent out is incident upon the first light guiding surface, is totally reflected on guide-lighting disk, and
After the reflection of the second light guiding surface, projected from above-mentioned third control region.
Further, it is preferable that the leaded light disk is in the form of annular discs, and with centre bore, above-mentioned first permanent magnet is inlaid in this
In centre bore；Also, the hole peripheral wall of the centre bore is above-mentioned first light guiding surface, and the lower part of its periphery wall is above-mentioned second
Light guiding surface.
Preferably, the mounting disc is integrally in the form of annular discs, first mounting groove is arranged at the center of mounting disc, on
It states the second mounting groove at least two and is circumferentially each provided at the periphery of above-mentioned first mounting groove, set respectively in each second mounting groove
Above-mentioned light source there are one setting；The knob part is closed by above-mentioned upper cover and pedestal upper and lower covers, downwardly convex on the bottom surface of the upper cover
Equipped with shape third mounting groove in a circular table shape, above-mentioned first permanent magnet is installed, and the third is installed in the third mounting groove
The peripheral surface of slot is above-mentioned first light guiding surface, and accordingly, second light guiding surface is the inside circumference of above-mentioned pedestal, and above-mentioned
Third control region is also centered on the center of circle of above-mentioned upper cover.
Compared with prior art, the utility model has the advantage of：At least three are provided on inductive switch circuit board
One photoelectrical coupler, and signal that the receiver acquisition of the first photoelectrical coupler is arranged at intervals on the first control region it is different the
One area and the secondth area, when such turning knob part, pulse electrical signal that each first photoelectrical coupler can export will produce regular
Variation, according to the variation and then can determine whether the direction of rotation of knob part, and can come to carry out gear or duration setting to knob part
It adjusts.As it can be seen that the utility model is simple in structure, using the variation for the signal that the receiver of the first photoelectrical coupler acquires, pass through
Knob part regulates and controls household electrical appliance, and easy to operate and regulation and control are accurate.
Description of the drawings
Fig. 1 is the structural schematic diagram of electromagnetic stove in the utility model embodiment 1；
Fig. 2 is the partial structurtes exploded view of electromagnetic stove in the utility model embodiment 1；
Fig. 3 is the structural schematic diagram of inductive switch circuit board in the utility model embodiment 1；
Fig. 4 is the structural schematic diagram of the other direction of Fig. 3；
Fig. 5 is the structural exploded view of knob part in the utility model embodiment 1；
Fig. 6 is the structural schematic diagram of the other direction of Fig. 5；
Fig. 7 is each area schematic of upper lid surface in the utility model embodiment 1；
Fig. 8 is that schematic diagram is arranged in the upper reflecting element that covers in the utility model embodiment 1；
Fig. 9 is the relative position schematic diagram of the first photoelectrical coupler and upper cover in the utility model embodiment 1；
Figure 10 is the relative position schematic diagram of the second photoelectrical coupler and upper cover in the utility model embodiment 1；
Figure 11 is that the light of knob part in the utility model embodiment 1 reflects schematic diagram；
Figure 12 is that the light of knob part in the utility model embodiment 2 reflects schematic diagram；
Figure 13 is the partial structurtes exploded view of knob part in the utility model embodiment 3；
Figure 14 is the structural exploded view of knob part in the utility model embodiment 3；
Figure 15 is the structural schematic diagram of light guide sheet in the utility model embodiment 3；
Figure 16 is the sectional view of light guide sheet in the utility model embodiment 3；
Figure 17 is the structural schematic diagram of the other direction of Figure 15；
Figure 18 is sectional views of the Figure 17 along the directions A-A；
Figure 19 is the enlarged drawing of I part in Figure 18；
Figure 20 is sectional views of the Figure 17 along the directions B-B；
Figure 21 is the enlarged drawing of II part in Figure 20；
Figure 22 is that the light of knob part in the utility model embodiment 3 reflects schematic diagram；
Figure 23 is that each photoelectrical coupler and the position relationship of upper cover show when knob part rotates clockwise 60 ° in the utility model
It is intended to；
Figure 24 is that each photoelectrical coupler and the position relationship of upper cover show when knob part rotates 60 ° counterclockwise in the utility model
It is intended to；
Figure 25 is that each photoelectrical coupler and the position relationship of upper cover show when knob part rotates clockwise 30 ° in the utility model
It is intended to；
Figure 26 is that each photoelectrical coupler and the position relationship of upper cover show when knob part rotates clockwise 30 ° in the utility model
It is intended to.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing embodiment.
Embodiment 1：
As shown in Fig. 1~11, a kind of induction switch structure for household electrical appliance, the induction switch structure in the present embodiment
For the magnetic induction switch knob applied to electromagnetic stove 1, be arranged on the panel 11 of electromagnetic stove 1, including setting panel 11 it
Preceding knob part 2 and the inductive switch circuit board 3 being arranged after panel 11, the panel 11 are glass-ceramic panel.Above-mentioned rotation
It is provided with the first permanent magnet 23 in button part 2, the second permanent magnet 24, above-mentioned inductive switch electricity are provided on inductive switch circuit board 3
Road plate 3 and knob part 2 are positioned by attracting each other for the first permanent magnet 23 and the second permanent magnet 24.
Further, above-mentioned knob part 2 includes circular upper cover 21 and pedestal 22, and by 22 upper and lower covers of the upper cover 21 and pedestal
It closes, wherein pedestal 22 has the bottom surface of light transmission.In the present embodiment, above-mentioned upper cover 21 is by PMMA high transparency Ya Keli plate systems
At, the front silk-screen high temperature ink of the upper cover 21 so that the upper cover 21 radially outwardly sequentially formed by center it is circular
First control region 21a, the second control region 21b, third control region 21c and the 4th control region 21d, wherein the first control region 21a
It is in black non transparent shape by above-mentioned silk-screen high temperature ink, is opaque area；Second control region 21b is semi-opaque region,
Invisible infrared light for photoelectrical coupler transmitting passes through；The clear areas third control region 21c；4th control region 21d with it is above-mentioned
First control region 21a is the same, is also opaque area.Specifically, in the present embodiment, the radius of the first control region 21a is 34mm, the
Two control region 21b in a ring and its width be 8mm, third control region 21c also in a ring and its width be 3mm, the 4th control region
21d also in a ring and its width be 4mm.
It is convexly equipped with shape third mounting groove 25 in a circular table shape in the middle part of the above-mentioned bottom surfaces first control region 21a, above-mentioned first
Permanent magnet 23 is inlaid in the third mounting groove 25, which has been provided at circumferentially spaced at least three first
Area, and the first parts control region 21a between the firstth adjacent area are the secondth area.It is provided on above-mentioned inductive switch circuit board 3
At least three first photoelectrical couplers 4, each first photoelectrical coupler 4 are respectively positioned on above-mentioned first control region 21a in inductive switch electricity
Continuum at wherein one of projection on road plate 3 circumferentially, and each first photoelectrical coupler, 4 spaced set.It is above-mentioned
The reflecting element 8 for the light that can reflect the transmitting of the first photoelectrical coupler 4 is provided in firstth area, thus can be anti-by the reflecting element 8
The optical signal that the first photoelectrical coupler 4 is radiated in the firstth area is penetrated, so that 4 output electric pulse of the first photoelectrical coupler is believed
Number, and the secondth area is the opaque area of black through above-mentioned silk-screen high temperature ink, the first photoelectrical coupler 4 irradiates on the second region
Optical signal can not obtain enough reflections, thus 4 output electric pulse of the first photoelectrical coupler corresponding with the secondth area can not be made to believe
Number.Above-mentioned reflecting element 8 is circumferentially spaced centered on the third mounting groove 25 to be all provided with.Each reflecting element 8 is to be adjusted with above-mentioned first
The concentric fan-shaped flakes of area 21a are controlled, reflecting element 8 is four in the present embodiment, and the central angle of each sector is 45 °, into one
Step, above-mentioned reflecting element 8 can be there are many realization methods, it is preferable that the reflecting element 8 is aluminium sheet.In the present embodiment, above-mentioned first photoelectricity
Coupler 4 is three, is located at the central axes of first photoelectrical coupler 4 of one end and the first photoelectrical coupler 4 for being located at the other end
Central axes formed by angle be 120 °, i.e., another first photoelectrical coupler 4 and another first photoelectric coupling closest with it
Formed angle is 60 ° (as shown in Figure 9) between device 4, the setting of the angle both met by knob part 2 carry out gear or
The needs of duration setting, and can guarantee the precision of setting.Photoelectrical coupler includes transmitter and receiver, therefore, each
First photoelectrical coupler 4, only when the geometrically symmetric overlapping of axles of the fan-shaped aluminium flake on its geometirc symmetry axis and knob part 2, ability
Normal acquisition signal.
Further, each above-mentioned first photoelectrical coupler 4 is different from the electric signal that each secondth area exports relative to each firstth area.
Specifically, in the present embodiment, when the first photoelectrical coupler 4 is opposite with the firstth area, first photoelectrical coupler 4 is without electric impulse signal
Output, and it is opposite with the secondth area when, which has electric impulse signal output.
It is equipped in addition, above-mentioned second control region 21b is circumferentially spaced at the projection on above-mentioned inductive switch circuit board 3
At least two second photoelectrical couplers 5, in the present embodiment, which is four, i.e., adjacent second photoelectric coupling
The angle formed between device 5 is 90 ° (as shown in Figure 10), when human hand is touched by wherein each second photoelectrical coupler 5, is received
The signal value that device receives can change, according to this variable quantity, it can be determined that the operational order of user is intended to.Such as：Into
The selection of 1 heating region of row domino electromagnetic stove controls, and setting selects upper left corner heating zone by 1#, by 2# selections upper right corner heating
Region, lower left corner heating zone is selected by 3#, and lower right corner heating zone is selected by 4#.For another example：The function selection for carrying out culinary art pattern, can
To be set separately：1# Baoshangs, 2# are quick-fried, and 3# is heat preservation, and 4# is timing etc., is set according to demand.
The utility model can regulate and control the direction of rotation of knob part 2 by above-mentioned first photoelectrical coupler 4, specifically such as
Under：
Assuming that three 4 receivers of the first photoelectrical coupler can receive aluminium flake (i.e. reflecting element 8) acquisition in the present embodiment
Signal be code " 1 ", be otherwise " 0 " (being radiated at outside aluminium flake region).Rotate clockwise the circle of knob one (turn 30 degree and increase " 1 ")
When：100,001,010,100,001,010,100,001,010,100,001,010；The circle of turn knob one counterclockwise (turns 30 degree
Subtract " 1 ") when：100,010,001,100,010,001,100,010,001,100,010,001.Since fan-shaped flake aluminum is 90
What degree was spaced apart, so cycle T=90 degree.If enabling X=100, Y=001, Z=010, then code clockwise：XYZX, inverse time
Needle code：XZYX by identifying the code of knob initial position, and compares its code next time, you can judge that it is up time
Needle turns or turns counterclockwise.Such as：It is initially " X ", if next code is " Y ", to be clockwise, if next code is " Z ",
It is counterclockwise；It is initially " Y ", is clockwise if next code is " Z "；It is counterclockwise if next code is " X "；Initially
It is clockwise if next code is " X " for " Z "；It is counterclockwise if next code is " Y ".As shown in Figure 23~26,
Three the first photoelectrical couplers 4 are respectively labeled as a, b, c in figure.
Further, the utility model can carry out the tune of gear or duration by above-mentioned first photoelectrical coupler 4 and knob part 2
Control：
Gear or duration increase and decrease control：By the control program setting on display board, each first electric coupler 4 often detects
Primary pulse signal clockwise just adds " 1 ", often detects that primary pulse signal counterclockwise just subtracts " 1 ".
Power gear adjusting control：It is " 5 " that original speed position up, which can be placed, by software set, knob, if kitchen range are total
9 gears then increase and decrease gear institute as above.But in clockwise adjust, when its value is " 9 ", Programmable detection to next up time
When needle pulse, its value is allowed directly to skip to " 1 grade " by " 9 grades ", can so carry out clockwise gear period step-less adjustment.Inverse
When hour hands are adjusted, when its value is " 1 ", Programmable detection directly skips to " 9 to when next pulse counterclockwise, allowing its value by " 1 grade "
Shelves ", can so carry out gear period step-less adjustment counterclockwise.Timing length is adjusted：When user has selected timing function,
When program is given tacit consent to a length of " 15min ", program often detects a pulse signal clockwise, is increased by 1min, preferably when it is a length of
" 99min " reduces 1min as soon as program often detects a pulse signal counterclockwise, and timing function is asked in view of dry combustion method and safety
Topic, being designed as can not loop cycle (industry usually such) that adjusts.
Further, it is additionally provided with mounting disc 6 on above-mentioned inductive switch circuit board 3, the mounting disc 6 is in the form of annular discs, center
Place is provided with the first downwardly open mounting groove 61, and above-mentioned second permanent magnet 24 is inlaid in first mounting groove 61, and is passed through
It is fixed in first mounting groove 61 along the circumferentially disposed buckle pawl 62 of 61 opening's edge of the first mounting groove.First mounting groove 61
Outer periphery is circumferentially provided at least two first mounting grooves 61, and first mounting groove 61 is 6 in the present embodiment, and each first
The opening upwards of mounting groove 61 are simultaneously respectively provided with there are one light source 7, and in the present embodiment, which is SMD lamp.I.e. forever by second
The back-off of magnet 24 is interference fitted and is mounted on inductive switch circuit board 3 after being packed into above-mentioned first mounting groove 61, in this way can be effective
It avoids the second permanent magnet 24 from being sucked out by external magnetic object in the case where tearing machine state open, and then avoids its loss.The light that above-mentioned light source 7 is sent out
Vertically expose to above-mentioned knob part 2, and the illumination for making light source 7 send out by the light guide structure in knob part 2 is set it is bright on
Third control region 21c is stated, so that sending out a circle aperture on the knob part 2.Under 1 open state of electromagnetic stove, when electromagnetic stove
After control panel detects that knob part 2 is placed on correct position, light source 7 shines, and then third control region 21c is made to pass through light guide structure
It shines, to prompt user's electromagnetic stove 1 to be in open state, while the inductive switch can be illuminated by luminous transparent area 21c,
So that user can clearly discrimination switch on cue mark.
Specifically, above-mentioned light guide structure includes the first light guiding surface 251 and the second light guiding surface 221, first light guiding surface 251
It is opposite with above-mentioned light source 7, and the second light guiding surface 221 is opposite with above-mentioned third control region 21c.First light guiding surface 251 and
Two light guiding surfaces 221 are oppositely arranged, and the angle of the two and horizontal plane is respectively 45 ° and 135 °, and are inclined both with respect to horizontal plane
Extend obliquely；The illumination that the light source 7 is sent out is incident upon on the first light guiding surface 251, guide-lighting through the first light guiding surface 251 and second
It after face 221 is reflected successively, is projected from above-mentioned third control region 21c so that a circle aperture is shown on knob part 2.In the present embodiment,
The peripheral surface of above-mentioned third mounting groove 25 is above-mentioned first light guiding surface 251, and accordingly, second light guiding surface 221 is above-mentioned
The inside circumference of pedestal 22.
Embodiment 2：
As shown in figure 12, as different from Example 1, it is arranged at above-mentioned second light guiding surface 221 in the present embodiment guide-lighting
Body 9, the light that the light source 7 is sent out expose to above-mentioned light guide 9 after the reflection of the first light guiding surface 251 and the light guide 9 are made to shine,
So that third control region 21c shines, a circle aperture is shown on knob part 2.In the present embodiment, which is annulus, edge
Above-mentioned second light guiding surface 221 is sticked.
Embodiment 3：
As shown in Figure 13~22, as unlike embodiment 1, in the present embodiment, the first photoelectricity coupling corresponding with the firstth area
Clutch 4 is exported without electric impulse signal, and the first photoelectrical coupler 4 corresponding with the secondth area has electric impulse signal output.Specifically
Ground is provided with light guide sheet 10 between above-mentioned upper cover 21 and inductive switch circuit board 3, corresponding with above-mentioned firstth area in the light guide sheet 10
Place is respectively arranged with the guide-lighting slot 101 radially extended, and the angle of the leaded light slot 101 cell wall radially and horizontal plane is
45 ° or 135 °.The sector that the leaded light slot 101 is 45 °, each leaded light slot 101 is by circumferentially spaced uniformly distributed guide-lighting microflute 101a
Composition, the cross section for being located at the guide-lighting microflute 101a at 101 middle part of guide-lighting slot is in isosceles right triangle shape, and positioned at both sides
The cross section of guide-lighting microflute 101a is also in the half of isosceles right triangle shape and the cross section for the guide-lighting microflute 101a at middle part.
The illumination that such first photoelectrical coupler 4 emits can be anti-without optical signal along horizontal project of light guide sheet 10 when being incident upon guide-lighting slot 101
It is incident upon the first photoelectrical coupler 4, so that exported without electric impulse signal when the first photoelectrical coupler 4 is opposite with the firstth area, and
10 part of light guide sheet corresponding with the secondth area then can successfully reflect the light of the first photoelectrical coupler 4, to the first photoelectric coupling
Device 4 has electric impulse signal output when opposite with the secondth area.What the reflex circuit in Figure 22 on the first photoelectrical coupler 4 was transmitted from
Illumination is incident upon in the secondth area and is formed.
In addition, being provided with guide-lighting disk 10 ' between 251 and second light guiding surface 221 of above-mentioned first light guiding surface, the light source 7 is sent out
It after the illumination gone out is incident upon the first light guiding surface 251, is totally reflected on guide-lighting disk 10 ', and after the reflection of the second light guiding surface 221,
It is projected from above-mentioned third control region 21c.The leaded light disk 10 ' selects the material that light total reflection critical angle is less than 45 ° in the present embodiment
(incidence angle of the light emitted due to light source is 45 °) is made, specifically, makrolon can be used.Preferably, above-mentioned light guide sheet
10 with guide-lighting disk 10 ' be the same part, i.e., offers above-mentioned guide-lighting slot 101 simultaneously on above-mentioned guide-lighting disk 10 '.Guide-lighting disk 10 ' is in
Discoid, with centre bore 100, above-mentioned first permanent magnet 23 is inlaid in the centre bore 100；Also, the centre bore 100
Hole peripheral wall is above-mentioned first light guiding surface 251, and the lower part of its periphery wall is above-mentioned second light guiding surface 221.
Claims (13)
1. a kind of induction switch structure for household electrical appliance, including knob part (2) and inductive switch circuit board (3), the knob
Part (2) is arranged in the one side of household electrical appliance light penetrating panel (11), and inductive switch circuit board (3) setting is saturating in the household electrical appliance
On the another side of optic panel (11), and the knob part (2) is correspondingly arranged with inductive switch circuit board (3), which is characterized in that institute
It includes upper cover (21) to state knob part (2), be provided on the bottom surface of the upper cover (21) centered on the center of circle of the upper cover (21)
One control region (21a)；
At least three first photoelectrical couplers (4), each first photoelectrical coupler are provided on above-mentioned inductive switch circuit board (3)
(4) it is respectively positioned on continuum at wherein the one of projection of above-mentioned first control region (21a) on inductive switch circuit board (3), and
And each first photoelectrical coupler (4) spaced set, and circumferentially spaced on above-mentioned first control region (21a) it is equipped at least three
The firstth a area, the first control region (21a) between the firstth adjacent area are partly the secondth area, each above-mentioned first photoelectrical coupler
(4) signal acquired in each firstth area is different from the signal acquired in each secondth area.
2. induction switch structure as described in claim 1, which is characterized in that first photoelectrical coupler (4) and the firstth area
When opposite, first photoelectrical coupler (4) without electric impulse signal export, and it is opposite with the secondth area when, first photoelectrical coupler
(4) there is electric impulse signal output；Alternatively,
When first photoelectrical coupler (4) is opposite with the firstth area, which has electric impulse signal output,
And when opposite with the secondth area, which exports without electric impulse signal.
3. induction switch structure as claimed in claim 2, which is characterized in that the first light can be reflected by being provided in firstth area
The light of electric coupler (4) transmitting and make the reflecting element (8) of the first photoelectrical coupler (4) the output electric pulse signal, and described the
The light of the first photoelectrical coupler (4) transmitting can not be reflected in 2nd area or the light of reflection is insufficient to allow first photoelectrical coupler (4)
Output electric pulse signal.
4. induction switch structure as claimed in claim 2, which is characterized in that the upper cover (21) and inductive switch circuit board
(3) it is provided with light guide sheet (10) between, is respectively arranged with and radially extends with above-mentioned firstth area corresponding position in the light guide sheet (10)
Guide-lighting slot (101), and the angle of the leaded light slot (101) cell wall radially and horizontal plane is 45 ° or 135 °.
5. induction switch structure as described in claim 1, which is characterized in that be additionally provided on the upper cover (21) on above-mentioned
The second control region (21b) centered on the center of circle of (21) is covered, second control region (21b) is semi-transparent for that can be passed through for infrared light
Region, second control region (21b) is circumferentially spaced at the projection on above-mentioned inductive switch circuit board (3) to be equipped at least two
A second photoelectrical coupler (5).
6. induction switch structure as described in claim 1, which is characterized in that also set up on the inductive switch circuit board (3)
There are at least one light source (7), the upper cover (21) to be additionally provided with the third control region (21c) of energy light transmission, and on knob part (2) also
It is provided with light guide structure, the bright above-mentioned third control region (21c) of the illumination which can be sent out by light source (7).
7. induction switch structure as claimed in claim 6, which is characterized in that the knob part (2) further includes with light transmission bottom
The pedestal (22) in face, the pedestal (22) and above-mentioned upper cover (21) are setting up and down, light guide structure setting the upper cover (21) with
In the space that pedestal (22) surrounds；
Also, the light guide structure include the first light guiding surface (251) and the second light guiding surface (221), first light guiding surface (251) and
Relatively, and the second light guiding surface (221) and above-mentioned third control region (21c) are relatively for above-mentioned light source (7), what above-mentioned light source (7) sent out
Light after the first light guiding surface (251) and the second light guiding surface (221), from above-mentioned third control region (21c) project or at least according to
Region where bright first light guiding surface (251).
8. induction switch structure as claimed in claim 7, which is characterized in that be provided with the first permanent magnetism on the knob part (2)
Body (23) is provided with the second permanent magnet (24) on the inductive switch circuit board (3), the knob part (2) and above-mentioned inductive switch
Circuit board (3) is positioned by attracting each other for the first permanent magnet (23) and the second permanent magnet (24)；
It is additionally provided with mounting disc (6) on above-mentioned inductive switch circuit board (3), is separately provided for installing in the mounting disc (6)
The first mounting groove (61) of above-mentioned second permanent magnet (24) and the second mounting groove (62) for installing above-mentioned light source (7), installation
Under state, the upper end edge of the mounting disc (6) can offset with household electrical appliance light penetrating panel (11).
9. induction switch structure as claimed in claim 8, which is characterized in that first light guiding surface (251) and the second leaded light
Face (221) is oppositely arranged, and the angle of the two and horizontal plane is respectively 45 ° and 135 °, and is tilted towards both with respect to horizontal plane
Upper extension；
The illumination that the light source (7) sends out is incident upon on the first light guiding surface (251), through the first light guiding surface (251) and the second light guiding surface
(221) it after reflecting successively, is projected from above-mentioned third control region (21c).
10. induction switch structure as claimed in claim 8, which is characterized in that first light guiding surface (251) and horizontal plane
Angle is 45 ° and is inclined relative to horizontal and upwardly extends；
Light guide (9) is provided at second light guiding surface (221), the light that the light source (7) sends out is through the first light guiding surface (251)
Above-mentioned light guide (9) is exposed to after reflection and the light guide (9) is made to shine.
11. induction switch structure as claimed in claim 8, which is characterized in that first light guiding surface (251) and the second leaded light
Face (221) is oppositely arranged, and the angle of the two and horizontal plane is respectively 45 ° and 135 °, and is tilted towards both with respect to horizontal plane
Upper extension；
Guide-lighting disk (10 ') is provided between first light guiding surface (251) and the second light guiding surface (221), what the light source (7) sent out
It after illumination is incident upon the first light guiding surface (251), is totally reflected on guide-lighting disk (10 '), and is reflected through the second light guiding surface (221)
Afterwards, it is projected from above-mentioned third control region (21c).
12. induction switch structure as claimed in claim 11, which is characterized in that the leaded light disk (10 ') is in the form of annular discs, tool
There are centre bore (100), above-mentioned first permanent magnet (23) to be inlaid in the centre bore (100)；
Also, the hole peripheral wall of the centre bore (100) is above-mentioned first light guiding surface (251), and the lower part of its periphery wall be on
State the second light guiding surface (221).
13. induction switch structure as claimed in claim 8, which is characterized in that whole in the form of annular discs, the institute of the mounting disc (6)
It states the first mounting groove (61) to be arranged at the center of mounting disc (6), above-mentioned second mounting groove (62) at least two and circumferentially
It is each provided at the periphery of above-mentioned first mounting groove (61), is respectively set in each second mounting groove (62) there are one above-mentioned light source (7)；
The knob part (2) is closed by above-mentioned upper cover (21) and pedestal (22) upper and lower covers, on the bottom surface of the upper cover (21) downwards
It is convexly equipped with shape third mounting groove (25) in a circular table shape, above-mentioned first permanent magnet is installed in the third mounting groove (25)
(23), and the peripheral surface of the third mounting groove (25) is above-mentioned first light guiding surface (251), accordingly, second light guiding surface
(221) it is the inside circumference of above-mentioned pedestal (22), and during above-mentioned third control region (21c) is also with the center of circle of above-mentioned upper cover (21)
The heart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721636582.8U CN207691779U (en) | 2017-11-30 | 2017-11-30 | A kind of induction switch structure for household electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721636582.8U CN207691779U (en) | 2017-11-30 | 2017-11-30 | A kind of induction switch structure for household electrical appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207691779U true CN207691779U (en) | 2018-08-03 |
Family
ID=62999815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721636582.8U Withdrawn - After Issue CN207691779U (en) | 2017-11-30 | 2017-11-30 | A kind of induction switch structure for household electrical appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207691779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861680A (en) * | 2017-11-30 | 2019-06-07 | 宁波方太厨具有限公司 | A kind of induction switch structure for household electrical appliance |
-
2017
- 2017-11-30 CN CN201721636582.8U patent/CN207691779U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861680A (en) * | 2017-11-30 | 2019-06-07 | 宁波方太厨具有限公司 | A kind of induction switch structure for household electrical appliance |
| CN109861680B (en) * | 2017-11-30 | 2024-01-16 | 宁波方太厨具有限公司 | Inductive switch structure for household appliances |
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