CN107726389A - Electromagnetic oven cooker and dry burning prevention control method thereof - Google Patents
Electromagnetic oven cooker and dry burning prevention control method thereof Download PDFInfo
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- CN107726389A CN107726389A CN201710987166.0A CN201710987166A CN107726389A CN 107726389 A CN107726389 A CN 107726389A CN 201710987166 A CN201710987166 A CN 201710987166A CN 107726389 A CN107726389 A CN 107726389A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000002265 prevention Effects 0.000 title 1
- 230000006698 induction Effects 0.000 claims abstract description 219
- 239000007788 liquid Substances 0.000 claims abstract description 151
- 238000010438 heat treatment Methods 0.000 claims abstract description 64
- 238000009434 installation Methods 0.000 claims description 190
- 230000001939 inductive effect Effects 0.000 abstract description 2
- 238000009841 combustion method Methods 0.000 description 41
- 230000005291 magnetic effect Effects 0.000 description 10
- 230000005611 electricity Effects 0.000 description 8
- 238000005194 fractionation Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000010408 film Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241000792861 Enema pan Species 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000003466 welding Methods 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
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
- F24C7/083—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on tops, hot plates
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
The invention provides an electromagnetic oven cooker and an anti-dry burning control method thereof, wherein the electromagnetic oven cooker comprises: the induction cooker comprises an induction cooker (20) and a cooker (10), wherein a coil panel (22) and a control panel (24) are arranged in the induction cooker (20), a protruding part (23) protruding towards the cooker (10) is arranged on a panel heating area of the induction cooker (20), and an inner concave part (11) matched with the protruding part is arranged at the bottom of the cooker (10); an induction device (30) capable of inducing the liquid level in the cooker (10) is arranged between the protruding portion (23) and the inner concave portion (11), the induction device (30) is higher than the lowest bottom surface in the cooker (10) in the vertical direction, and the induction device (30) is electrically connected with the control panel (24).
Description
Technical field
The present invention relates to a kind of household electrical appliance, more particularly to a kind of electromagnetic stove and its anti-dry control method.
Background technology
Electromagnetic oven turns into a kind of widely used cooking apparatus, and electromagnetic oven is using made of electromagnetic inductive heating principle
Electric cooking apparatus, it is made up of the part such as radio-frequency induction coil disk (i.e. magnet exciting coil), controller and ferromagnetic material the bottom of a pan cooker,
In use, being passed through alternating current in coil panel, an alternating magnetic field is just produced around coil, the magnetic line of force of alternating magnetic field is largely logical
Metal pan is crossed, a large amount of vortex are produced in the bottom of a pan, so as to produce the heat needed for culinary art, wherein, electromagnetic oven adds to pan
When hot, easily occur dry-fire condition when the liquid in pan is less or no, and during electromagnetic oven dry combustion method, easily to pan and electromagnetism
Stove causes to damage.
At present, patent (CN202074583U) discloses a kind of anti-dry protection device for electromagnetic oven cooker, specifically open (referring to
Such as Fig. 1)：It can sense boilers from drying burning including light-permeable panel 1, coil panel 2, master board 3, base 4, two to redden and produce resistance
The light-sensitive element 5 of value changes and two light-sensitive element supports 6, wherein, coil panel 2 and master board 3 are located in base 4, two
Light-sensitive element support 6 is located at the lower section of coil panel 2, and its one end is fixed on the support of coil panel 2, and the other end is located at light-permeable face
The lower section of the heating region of plate 1, light-sensitive element 5 are stuck in the other end of light-sensitive element support 6, and light-sensitive element 5 can directly sense
The situation that boilers from drying burning reddens, and electrically connected with master board 3, operation principle is：Electromagnetic oven is in normal work, due to pan
Block, the available light being irradiated on light-sensitive element 5 is seldom, and the bright resistance value of element 5 is larger, and the voltage of output is larger, when
When pan occurs dry combustion method and reddened, light-sensitive element 5 diminishes with the enhancing of transmitted ray, resistance value, and the magnitude of voltage of output diminishes,
Master board 3 judges that pan there occurs dry combustion method, stops power output, so as to reach the purpose of dry combustion method protection according to voltage change.
However, in above-mentioned anti-dry protection device for electromagnetic oven cooker, light-sensitive element 5 need to be when pan occurs dry combustion method and reddened
Respond, when such electromagnetic oven makes stopping power output according to the change of light-sensitive element 5, pan has occurred that dry combustion method shows
As still occurring that the situation of dry combustion method occurs for pan during electromagnetic oven use, so as to cause certain damage to pan.
The content of the invention
For the anti-dry protection device for electromagnetic oven cooker that solves to mention in background technology, pan still can in use
There is at least one problem of dry combustion method phenomenon, the present invention provides a kind of electromagnetic stove and its anti-dry controlling party of anti-dry
Method.
The present invention provides a kind of electromagnetic stove, including electromagnetic oven and pan, and coil panel and control are provided with the electromagnetic oven
Making sheet, the raised lug boss of the pan is provided with the panel heating zone of the electromagnetic oven, the bottom of a pan of the pan has
With the inner fovea part of the raised portion fits；
The induction installation that can be sensed to the liquid level in the pan, and institute are provided between the lug boss and inner fovea part
State the lowest bottom surface that induction installation is positioned vertically higher than in the pan, the induction installation and the electrical phase of the control panel
Even, the control panel is used to control the coil disk startup to heat when the induction installation senses the liquid level in the pan
And the coil panel is controlled to stop heating when the liquid level that the induction installation is not sensed by the pan.
The lug boss raised by being provided with the pan on the electromagnetic oven, the bottom of a pan of the pan have and institute
The inner fovea part of raised portion fits is stated, the sensing that can be sensed to the liquid level in the pan is provided between lug boss and inner fovea part
Device, the induction installation are positioned vertically higher than the lowest bottom surface in the pan, such induction installation with pan
Certain intervals between lowest surfaces be present, a certain amount of liquid still can be stored in the clearance space, when the liquid level in pan goes out
When being now less than induction installation, control panel just controls electromagnetic oven to stopped heating, now because there are still a certain amount of in pan
Liquid, ensure that pan is not susceptible to dry combustion method phenomenon, therefore, the electromagnetic stove that the present embodiment provides, solve existing
The problem of dry combustion method has occurred for pan when electromagnetic oven stops heating in technology.
Optionally, the vertical distance in the induction installation and the pan between lowest bottom surface is between 3-20mm.
Optionally, the induction installation is located on the lug boss, and the induction end of the induction installation be connected to it is described
On the concave surface of inner fovea part.
Optionally, the induction installation is located at the top of the lug boss, and the induction end of the induction installation is connected to
On the inner top surface of the inner fovea part.
Optionally, the induction installation is located on the concave surface of the inner fovea part, and the induction end of the induction installation and institute
The concave surface contact of inner fovea part is stated, the other end of the induction installation abuts with the lug boss.
Optionally, the inner fovea part towards the one side in the pan be cambered surface or the conical surface.
Optionally, the induction installation is non-contact capacitance induction part.
The present invention also provides a kind of electromagnetic stove anti-dry control method, and the electromagnetic stove is electricity described above
Magnetic stove cooker, the control method include：
Induction installation senses to the liquid level of liquid in pan；
When the induction installation senses the liquid level in the pan, the control panel senses according to the induction installation
The signal control electromagnetic oven arrived starts heating；
When induction installation sensing is less than liquid level in the pan, then the control panel controls the electromagnetic oven to stop
Only heat.
Optionally, the induction installation senses to the liquid level of liquid in pan, including：
When the liquid level of liquid in the pan is equal to or higher than the induction installation, then the induction installation senses institute
State the liquid level in pan；
When the liquid level of liquid in the pan is less than the induction installation, then the induction installation sensing is less than the pot
Liquid level in tool.
Optionally, after the signal control electromagnetic oven that the control panel senses according to the induction installation starts heating,
Also include：
The control panel judges that the electromagnetic oven starts whether the duration heated is more than preset duration；
If judge that the duration of the electromagnetic oven startup heating is more than the preset duration, the control panel controls institute
State induction installation and sensing is re-started to the liquid level in the pan, so that the control panel is felt again according to the induction installation
The signal that should be arrived is controlled to the electromagnetic oven.
The construction of the present invention and its other goals of the invention and beneficial effect will be in conjunction with the accompanying drawings to preferred real
Apply the description of example and more obvious understandable.
Brief description of the drawings
Fig. 1 is the structural representation of existing anti-dry protection device for electromagnetic oven cooker；
Fig. 2 is the structural representation for the electromagnetic stove that the embodiment of the present invention one provides；
Fig. 3 is the fractionation structural representation for the electromagnetic stove that the embodiment of the present invention one provides；
Fig. 4 is that liquid level is less than the structural representation of induction installation in pan in the electromagnetic stove that the embodiment of the present invention one provides
Figure；
Fig. 5 is that liquid level is higher than the structural representation of induction installation in pan in the electromagnetic stove that the embodiment of the present invention one provides
Figure；
Fig. 6 is the fractionation structural representation for the electromagnetic stove that the embodiment of the present invention two provides；
Fig. 7 is the fractionation structural representation for the electromagnetic stove that the embodiment of the present invention three provides；
Fig. 8 is the schematic flow sheet for the electromagnetic stove anti-dry control method that the embodiment of the present invention four provides；
Fig. 9 is the another schematic flow sheet for the electromagnetic stove anti-dry control method that the embodiment of the present invention four provides.
Description of reference numerals：
Pan -10；
Inner fovea part -11；
Electromagnetic oven -20；
Power panel -21；
Coil panel -22；
Lug boss -23；
Control panel -24；
Induction installation -30.
Embodiment
Embodiment one
Fig. 2 is the structural representation for the electromagnetic stove that the embodiment of the present invention one provides；Fig. 3 is that the embodiment of the present invention one carries
The fractionation structural representation of the electromagnetic stove of confession, Fig. 4 are liquid in pan in the electromagnetic stove that the embodiment of the present invention one provides
Position is less than the structural representation of induction installation；Fig. 5 is that liquid level is high in pan in the electromagnetic stove that the embodiment of the present invention one provides
In the structural representation of induction installation, as shown in Figure 2-5, in the present embodiment, electromagnetic stove includes：Electromagnetic oven 20 and pan
10, electromagnetic oven 20 is interior to be provided with coil panel 22, control panel 24 and power panel 21, and coil panel 22 is electrical connected with control panel 24, electricity
Magnetic stove 20 also includes panel, and being divided on panel has heating zone and operating space, and pan 10, which is placed on the heating zone of panel, to be added
Heat, wherein, the heating zone of panel is corresponding with coil panel 22, in the present embodiment, in order to prevent in the heating process of electromagnetic oven 20
Only there is dry combustion method phenomenon, as shown in Figure 2-5, the raised lug boss of pan 10 is provided with the panel heating zone of electromagnetic oven 20
23, i.e. lug boss 23 is located on the heating zone of the panel of electromagnetic oven 20, when electromagnetic oven 20 is provided with lug boss 23, pan 10
The bottom of a pan has the inner fovea part 11 coordinated with lug boss 23, specifically, inner fovea part 11 is towards the internal projection of pan 10, and inner fovea part 11 has
There is the groove for being available for lug boss 23 to stretch into, for pan 10 when being placed on electromagnetic oven 20, lug boss 23 stretches into the groove of inner fovea part 11
In, and in order to be detected to the liquid level in pan 10, can be to pan 10 specifically, being provided between lug boss 23 and inner fovea part 11
The induction installation 30 that interior liquid level is sensed, i.e. induction installation 30 are used to sense the liquid level in pan 10 to judge
Pan 10 whether there is dry combustion method phenomenon.
Wherein, in order to avoid control panel 24 control electromagnetic oven 20 stop heating when pan 10 there is dry combustion method phenomenon, this
In embodiment, specifically, when induction installation 30 is set between lug boss 23 and inner fovea part 11, induction installation 30 is in vertical direction
The upper lowest bottom surface higher than in pan 10, i.e., induction installation 30 is higher than the lowest bottom surface in pan 10, induction installation 30 and pan
Certain intervals be present between lowest surfaces in 10, a certain amount of liquid, such pan 10 still can be stored in the clearance space
When interior liquid level is less than induction installation 30, induction installation 30 is sensed less than liquid level, and now control panel 24 is sentenced according to induction installation 30
Break and pan 10 and dry combustion method risk be present, control electromagnetic oven 20 stops heating, but now in pan 10 liquid simply less than sensing
Device 30, still with the presence of liquid in pan 10, i.e., judge that pan 10 has dry combustion method phenomenon and stops according to induction installation 30
During heating, a certain amount of liquid is still had in pan 10, has been gone out from pan 10 when stopping heating without electromagnetic oven 20
The phenomenon of existing dry combustion method, in the present embodiment, by the way that induction installation 30 higher than the lowest bottom surface in pan 10, can be sent out pan 10
Raw dry combustion method serves the purpose prevented in advance.
Wherein, in the present embodiment, induction installation 30 is electrical connected with control panel 24, and control panel 24 is used to work as induction installation 30
Sense and control coil panel 22 to start heating and when induction installation 30 is sensed less than in pan 10 during the liquid level in pan 10
Coil panel 22 is controlled to stop heating during liquid level, specifically, because induction installation 30 is higher than the lowest bottom surface in pan 10, such pot
Liquid level in tool 10 is less than induction installation 30, then induction installation 30 is sensed less than the liquid level in pan 10, now, control panel 24
Judge that the liquid level in pan 10 is less than induction installation 30 according to induction installation 30, dry combustion method risk be present, then control electromagnetic oven 20
Stop heating, and now still have a certain amount of liquid in pan 10, so the dry combustion method problem of pan 10 is not present, thus be avoided that
Has there is the problem of dry combustion method in pan 10 when control panel 24 controls the electromagnetic oven 20 to stop heating, therefore, the electricity that the present embodiment provides
Magnetic stove cooker prevents pan 10 phenomenon of dry combustion method occur in the heating process of electromagnetic oven 20, it is ensured that the safety of electromagnetic stove
Use.
Wherein, in the present embodiment, when induction installation 30 is higher than the lowest bottom surface in pan 10, if induction installation 30 and pot
When the distance between lowest bottom surface in tool 10 is too small, the liquid level that induction installation 30 senses is relatively low, such basis of control panel 24
When the Liquid level electromagnetic oven 20 that induction installation 30 senses starts heating, the liquid level in pan 10 is relatively low, i.e. pan 10
Electromagnetic oven 20 still starts heating when less liquid inside be present, the dry combustion method phenomenon of pan 10 easily occurs after so starting heating, no
Beneficial to the safe handling of insulating pot, and if when the distance between lowest bottom surface in induction installation 30 and pan 10 is excessive, sense
The liquid level for answering device 30 to sense is higher, i.e., induction installation 30 can just sense when the liquid level in pan 10 is higher, so controls
When the liquid level that plate 24 is sensed according to induction installation 30 starts heating, the liquid level in pan 10 necessarily be greater than induction installation 30, when with
When family needs to heat a small amount of water, if liquid level is less than induction installation 30, control panel 24 controls electromagnetic oven 20 according to induction installation 30
Stop heating, so as to be heated to a small amount of water in pan 10, therefore, in the present embodiment, when induction installation 30 is high
When lowest bottom surface is configured in pan 10, specifically, will be vertical between lowest bottom surface in induction installation 30 and pan 10
Distance H, for example, the vertical distance H between induction installation 30 and the lowest bottom surface of pan 10 can be 5mm, also may be used between 3-20mm
Think 10mm, so, when the liquid level in pan 10 is less than 3-20mm, such as liquid level in pan 10 is 2.5mm, now, sense
Device 30 is answered to sense less than the liquid level in pan 10, control panel 24 judges that pan 10 has dry combustion method, and control electromagnetic oven 20 stops
Heating, but now pan 10 is interior there are still the liquid that height is 2.5mm, so that pan 10 stops adding in electromagnetic oven 20
Dry combustion method phenomenon is less prone to when hot.
Wherein, in actual applications, the vertical distance between induction installation 30 and the lowest bottom surface of pan 10 is with specific reference to reality
Border demand is selected, such as when the liquid level in pan 10 is concordant with induction installation 30, the water accommodated in pan 10 is electricity
Magnetic stove 20 can heat the water of 6 minutes, and so when judging that pan 10 has dry combustion method, existing liquid can be with pan 10
Dry combustion method just occurs when being heated 6 minutes, it is achieved thereby that pan 10 occurs in advance the judgement purpose of dry combustion method, and then prevents pot
Dry combustion method problem occurs for tool 10.
Wherein, in the present embodiment, when induction installation 30 is configured between lug boss 23 and inner fovea part 11, specifically,
As shown in figure 3, induction installation 30 can be located on lug boss 23, and in order to sense to the liquid level in pan 10, sensing
The induction end of device 30 can be connected on the concave surface of inner fovea part 11, so when pan 10 is placed on electromagnetic oven 20, sensing dress
30 induction end is put to be contacted so as to sense the liquid level in pan 10 with inner fovea part 11, wherein, induction installation
30 on lug boss 23 when setting, specifically, induction installation 30 can be located on the top of lug boss 23, or can also be located at
On the side of lug boss 23, wherein, the position that induction installation 30 is set on lug boss 23 is set with specific reference to actual demand
Put, as long as ensuring the distance between lowest bottom surface in induction installation 30 and pan 10 between 3-20mm or so, wherein, this
In embodiment, induction installation 30 is located at when being set on lug boss 23, induction installation 30 by by lead through lug boss 23 with
Control panel 24 in electromagnetic oven 20 is attached, and when such induction installation 30 senses to the liquid level in pan 10, will can be sensed
Control panel 24 is transferred to signal, whether control panel 24 is heated according to actuated signal control electromagnetic oven 20.
Wherein, in the present embodiment, as shown in figure 3, induction installation 30 is specifically located on the top of lug boss 23, induction installation
30 induction end can be abutted on the inner top surface of inner fovea part 11 when pan 10 is placed on electromagnetic oven 20, in such pan 10
Liquid level exceed inner fovea part 11 top when, induction installation 30 can be to sense the liquid level in pan 10, when in pan 10
When liquid level is less than the top of inner fovea part 11, induction installation 30 can not sense the liquid level in pan 10, now the basis of control panel 24
Induction installation 30 judges that pan 10 has dry combustion method risk, so as to control electromagnetic oven 20 to stop heating.
Wherein, in the present embodiment, when induction installation 30 is set on the top of lug boss 23, specifically, in lug boss 23
Top opens up the through hole for being available for lead to pass through, and induction installation 30 is electrical connected by lead and the control panel 24 in electromagnetic oven 20,
Or the electrode being connected with control panel 24 can be provided with lug boss 23, induction installation 30 is provided with insert corresponding with electrode
Head, induction installation 30 is attached by inserting mode and control panel 24, in the present embodiment, as long as ensureing induction installation 30 and electricity
Control panel 24 in magnetic stove 20 is connected.
Wherein, in the present embodiment, when induction installation 30 is located on the top of lug boss 23, and the induction end of induction installation 30
When being connected on the inner top surface of inner fovea part 11, when the top of inner fovea part 11 in plane, the liquid level in pan 10 to be often present
Less than the induction end of induction installation 30, but there can be residual liquid on the top plan of inner fovea part 11, such induction installation 30
Induction end can sense liquid level, the liquid level signal that control panel 24 senses according to induction installation 30 just starts electromagnetic oven 20 and entered
Row heating, but the actual liquid level in pan 10 is less than induction installation 30, so when starting heating there is dry combustion method in pan 10
Risk, easily there is dry combustion method problem after starting heating in such electromagnetic oven 20, therefore, in order to avoid due to the top Liquid Residue of inner fovea part 11
Body causes induction installation 30 the problem of false sense is answered occur, in the present embodiment, specifically, can be with inner fovea part 11 towards in pan 10
One side be arranged to cambered surface or the conical surface, the top of such inner fovea part 11 is not easy residual liquid, so as to ensure induction installation 30
Accurate sensing to liquid level in pan 10 so that be less prone to dry combustion method problem during the use of electromagnetic oven 20.
Wherein, in the present embodiment, induction installation 30 is specially non-contact capacitance induction part, is to form it by metallic film
Electric capacity, the concrete principle of work are：When liquid level is higher than the induction installation 30, i.e., liquid is covered in the surface of induction installation 30, sense
Answer device 30 to sense metal thin film capacitor value to change.Electricity can be obtained by the capacitance detecting chips electrically connected with metallic film
Capacitance, it can determine whether that liquid level is close with metallic film by the change of capacitance, and can be inside induction installation 30
The capacitance change signal is converted into by electric signal by change-over circuit, control panel 24 is according to the change of the electric signal to electromagnetic oven 20
Working condition regulated and controled, specifically, when the liquid level in pan 10 is equal to or higher than the induction installation 30, capacitance becomes
Greatly, control panel 24 judges that liquid level is higher than induction installation 30 in pan 10 according to capacitance variation, and electromagnetic oven 20 can be added
Heat, when the liquid level in pan 10 is less than the induction installation 30, capacitance diminishes, then electromagnetic oven 20 stops heating.
Wherein, in the present embodiment, non-contact capacitance induction part is existing device, and its structure and principle can specifically join
Existing non-contact capacitance induction part is examined, its structure and principle are repeated no more in the present embodiment.
In the present embodiment, when induction installation 30 is using non-contact capacitance induction part, induction installation 30 is without straight with liquid
Contact, avoids liquid from impacting its induction end, while it also avoid in the device of the interior setting induction level of pan 10
The mounting hole installed and used for induction installation 30 need to be opened up in pan 10, installation is simple and is easy to check.
Embodiment two
Fig. 6 is the fractionation structural representation for the electromagnetic stove that the embodiment of the present invention two provides, as shown in fig. 6, this implementation
Example is distinguished as with above-described embodiment：In the present embodiment, induction installation 30 is located on the concave surface of inner fovea part 11, i.e. induction installation 30
Be arranged on pan 10 and positioned at inner fovea part 11 towards in the one side of lug boss 23, wherein, the induction end of induction installation 30 with it is interior
The concave surface contact of recess 11, the induction end of such induction installation 30 can be sensed with the liquid level in pan 10, simultaneously as control
Making sheet 24 is located in electromagnetic oven 20, so, when induction installation 30 is located on the inner fovea part 11 of pan 10, induction installation 30
The other end can abut when pan 10 is placed on electromagnetic oven 20 with lug boss 23, so be easy to induction installation 30 and electromagnetic oven 20
Interior control panel 24 is connected, wherein, during connection, specifically, the grafting being connected with control panel 24 can be set on lug boss 23
Head, induction installation 30 is provided with jack corresponding with connection-peg towards one end of lug boss 23, when pan 10 is placed on electromagnetic oven
When on 20, induction installation 30 realizes the electric connection with control panel 24 by contact of the connection-peg with jack.
Wherein, in the present embodiment, for induction installation 30 when being set on the concave surface of inner fovea part 11, induction installation 30 specifically can be with
It is located on inner fovea part 11, or can also be fixed on by modes such as welding on inner fovea part 11 by removablies such as clampings.
Embodiment three
Fig. 7 is the fractionation structural representation for the electromagnetic stove that the embodiment of the present invention three provides, as shown in fig. 7, this implementation
It is distinguished as in example with above-described embodiment：In the present embodiment, lug boss 23 includes side and top, inner fovea part 11 include side and
Top, and induction installation 30 is located between the side of inner fovea part 11 and lug boss 23, specifically, induction installation 30 can be located at it is convex
On the side for playing portion 23, or induction installation 30 can also be located on the concave side of inner fovea part 11, wherein, when the side of induction installation 30
When being located on the concave side of inner fovea part 11, even if when the top of inner fovea part 11 has residual liquid, but due to induction installation 30
It is located on the concave side of inner fovea part 11, the induction end of induction installation 30 contacts with the concave side of inner fovea part 11, so inner fovea part 11
Residual liquid existing for top will not sensing of the team's induction installation 30 to liquid level in pan 10 impact.
Wherein, in the present embodiment, in the present embodiment, induction installation 30 is set in the side of lug boss 23 or inner fovea part 11
When putting, induction installation 30 can surround lug boss 23 or the side of inner fovea part 11 is set one week, or induction installation 30 can edge
It is multiple the side surface circumference interval setting of lug boss 23 or inner fovea part 11, the liquid of diverse location in pan 10 can so be entered
Row sensing, the accuracy of liquid level sensing are higher.
Example IV
Fig. 8 is the schematic flow sheet for the electromagnetic stove anti-dry control method that the embodiment of the present invention four provides, and Fig. 9 is this
The another schematic flow sheet for the electromagnetic stove anti-dry control method that inventive embodiments four provide.In the present embodiment, above-mentioned electricity
When in use, electromagnetic stove anti-dry control method is as shown in figure 8, specifically comprise the following steps for magnetic stove cooker：
Step 101, induction installation sense to the liquid level of liquid in pan；
In the present embodiment, after pan 10 is placed on electromagnetic oven 20, switch on power, induction installation 30 is first to pan 10
The liquid level of interior liquid is sensed, and obtaining pan 10 by induction installation 30 whether there is dry combustion method risk, specifically, working as pan 10
When interior liquid level is equal to or higher than induction installation 30, the electric capacity of induction installation 30 becomes big, and induction installation 30 senses liquid level,
Then know in pan 10 liquid be present, can be heated, when the liquid level in pan 10 is less than induction installation 30, sensing
The electric capacity of device 30 diminishes (i.e. less than reference capacitance), and induction installation 30 is sensed less than liquid level, then knows to exist in pan 10 and do
Burn risk, electromagnetic oven 20 stop heating, wherein, in the present embodiment, when being set due to induction installation 30 higher than in pan 10 most
Low bottom surface, so when induction installation 30 can't detect the liquid level in pan 10, show that the liquid level in pan 10 is less than induction installation
30, but still can have a certain amount of liquid in pan 10, it can so cause control panel 24 to control electromagnetic oven 20 to stop
During heating, quantitative liquid in pan 10 also be present, avoid pan 10 that showing for dry combustion method has occurred when electromagnetic oven 20 stops and heated
As.
Step 102, when induction installation senses the liquid level in pan, signal that control panel senses according to induction installation
Electromagnetic oven is controlled to start heating；
In the present embodiment, when induction installation 30 senses to the liquid level of liquid in pan 10, specifically, when liquid in pan 10
Liquid level when being equal to or higher than induction installation 30, induction installation 30 senses the liquid level in pan 10, when liquid in pan 10
When liquid level is less than induction installation 30, then induction installation 30 is sensed less than the liquid level in pan 10.So when induction installation 30 senses
During to liquid level in pan 10, show that the liquid level in pan 10 is equal to or higher than induction installation 30, exist in pan 10 a certain amount of
Liquid, be not in dry combustion method phenomenon after heating, so, control panel 24 controls electromagnetic oven 20 to start heating, specifically, control
The startup optimization of coil panel 22 in the electromagnetic oven 20 of 24 control panel of plate 24, is heated to liquid in pan 10.
Step 103, when induction installation sensing is less than liquid level in pan, then control panel control electromagnetic oven 20 stop plus
Heat.
In the present embodiment, when induction installation 30 is sensed less than liquid level in pan 10, show that the liquid level in pan 10 is low
In dry combustion method risk in induction installation 30, pan 10 be present, now induction installation 30 is because sensing is less than the liquid level in pan 10,
Capacitance diminishes, and the liquid level judged in pan 10 that diminished according to the capacitance of induction installation 30 of control panel 24 is less than induction installation
30, there is dry combustion method risk in pan 10, so control electromagnetic oven 20 stops heating, specifically, the coil in control electromagnetic oven 20
Disk 22 is out of service.
The electromagnetic stove anti-dry control method that the present embodiment provides, by induction installation 30 to the liquid level in pan 10
Sensed, when induction installation 30 senses the liquid level in pan 10, control panel 24 controls electromagnetic oven 20 to start heating, works as sense
When answering the device 30 to sense less than liquid level in pan 10, control panel 24 controls electromagnetic oven 20 to stop heating, and due to induction installation
30 higher than the lowest bottom surface in pan 10, so the liquid level in pan 10, once being less than induction installation 30, control panel 24 stops electricity
Magnetic stove 20 heats, and the phenomenon of dry combustion method has occurred for pan 10 when stopping heating this avoid electromagnetic oven 20.
Wherein, in the present embodiment, when induction installation 30 senses the liquid level in pan 10, control panel 24 controls electromagnetic oven
20 start heating, but with the evaporation of the liquid in pan 10 after heating, the liquid level in pan 10 can reduce, in practice
In, existing amount of liquid can be often that can heat 6 points in the space between lowest bottom surface in induction installation 30 and pan 10
The amount of liquid of clock, when the liquid level in such pan 10 is equal to induction installation 30, after electromagnetic oven 20 starts heating, after heating 6 minutes
Dry combustion method phenomenon can occur for pan 10, in the present embodiment, avoid induction installation 30 real simultaneously in order to avoid dry combustion method occurs for pan 10
When in pan 10 liquid sense and cause the service life of induction installation 30 reduce the problem of, after step 102, such as Fig. 9 institutes
Show, also comprise the following steps：
Step 104：Control panel judges that electromagnetic oven starts whether the duration heated is more than preset duration, if so, then performing step
Rapid 105, if it is not, continuing to heat；
In the present embodiment, preset duration stores with specific reference to space between the lowest bottom surface in induction installation 30 and pan 10
Liquid level amount be available for the duration of heating to determine, such as space stores between the lowest bottom surface in induction installation 30 and pan 10
Liquid level amount is the amount of liquid of heating 5 minutes, then preset duration can be 5 minutes, so be grown up when electromagnetic oven 20, which starts, to be heated
When 5 minutes, induction installation 30 senses to the liquid in pan 10 again, is not more than when electromagnetic oven 20 starts heating duration
At 5 minutes, then electromagnetic oven 20 continues to heat, and is only more than preset duration to heating duration.
Step 105：If judge that the duration of electromagnetic oven startup heating is more than preset duration, control panel Perceived control should fill
Put and sensing is re-started to the liquid level in pan, so that the signal that control panel senses again according to induction installation enters to electromagnetic oven
Row control.
In the present embodiment, when the heating duration after electromagnetic oven 20 starts heating is more than preset duration, in order to avoid occurring
Dry combustion method phenomenon, induction installation 30 senses to the liquid level in pan 10 again, if sensing liquid level, performs above-mentioned steps
102, if otherwise performing step 103, so after electromagnetic oven 20 starts heating, induction installation 30 only need to be after more than preset duration
Liquid level in pan 10 is detected, stops heating until heating terminates the control coil disk 22 of rear control plate 24.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of electromagnetic stove, including electromagnetic oven (20) and pan (10), the electromagnetic oven (20) is interior to be provided with coil panel (22)
With control panel (24), it is characterised in that：The pan (10) projection is provided with the panel heating zone of the electromagnetic oven (20)
Lug boss (23), the bottom of a pan of the pan (10) has the inner fovea part (11) with the raised portion fits；
The sensing that can be sensed to the liquid level in the pan (10) is provided between the lug boss (23) and inner fovea part (11)
Device (30), and the induction installation (30) is positioned vertically higher than the lowest bottom surface in the pan (10), the sensing
Device (30) is electrical connected with the control panel (24), and the control panel (24) is used for when the induction installation (30) senses institute
Controlled when stating the liquid level in pan (10) the coil disk startup heat and when the induction installation (30) be not sensed by it is described
The coil panel is controlled to stop heating during liquid level in pan (10).
2. electromagnetic stove according to claim 1, it is characterised in that the induction installation (30) and the pan (10)
Vertical distance between interior lowest bottom surface is between 3-20mm.
3. electromagnetic stove according to claim 2, it is characterised in that the induction installation (30) is located at the lug boss
(23) on, and the induction end of the induction installation (30) is connected on the concave surface of the inner fovea part (11).
4. electromagnetic stove according to claim 3, it is characterised in that the induction installation (30) is located at the lug boss
(23) top, and the induction end of the induction installation (30) is connected on the inner top surface of the inner fovea part (11).
5. electromagnetic stove according to claim 2, it is characterised in that the induction installation (30) is located at the inner fovea part
(11) on concave surface, and the induction end of the induction installation (30) contacts with the concave surface of the inner fovea part (11), the sensing dress
The other end for putting (30) abuts with the lug boss (23).
6. according to any described electromagnetic stoves of claim 1-5, it is characterised in that the inner fovea part (11) is towards the pot
The one side having in (10) is cambered surface or the conical surface.
7. according to any described electromagnetic stoves of claim 1-5, it is characterised in that the induction installation (30) is non-contact
Formula capacitive sensing part.
8. a kind of electromagnetic stove anti-dry control method, it is characterised in that the electromagnetic stove is the claims 1-7
Described electromagnetic stove, the control method include：
Induction installation senses to the liquid level of liquid in pan；
When the induction installation senses the liquid level in the pan, the control panel senses according to the induction installation
Signal control electromagnetic oven starts heating；
When induction installation sensing is less than liquid level in the pan, then the control panel control the electromagnetic oven stop plus
Heat.
9. control method according to claim 8, it is characterised in that the induction installation enters to the liquid level of liquid in pan
Row sensing, including：
When the liquid level of liquid in the pan is equal to or higher than the induction installation, then the induction installation senses the pot
Liquid level in tool；
When the liquid level of liquid in the pan is less than the induction installation, then the induction installation sensing is less than in the pan
Liquid level.
10. control method according to claim 9, it is characterised in that the control panel senses according to the induction installation
After the signal control electromagnetic oven arrived starts heating, in addition to：
The control panel judges that the electromagnetic oven starts whether the duration heated is more than preset duration；
If judge that the duration of the electromagnetic oven startup heating is more than the preset duration, the control panel controls the sense
Device is answered to re-start sensing to the liquid level in the pan, so that the control panel senses again according to the induction installation
Signal the electromagnetic oven is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710987166.0A CN107726389A (en) | 2017-10-20 | 2017-10-20 | Electromagnetic oven cooker and dry burning prevention control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710987166.0A CN107726389A (en) | 2017-10-20 | 2017-10-20 | Electromagnetic oven cooker and dry burning prevention control method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN107726389A true CN107726389A (en) | 2018-02-23 |
Family
ID=61213112
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710987166.0A Pending CN107726389A (en) | 2017-10-20 | 2017-10-20 | Electromagnetic oven cooker and dry burning prevention control method thereof |
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| CN109770709A (en) * | 2018-12-19 | 2019-05-21 | 寇书亭 | A kind of insulating pot power and anti-dry control mode |
| CN110848759A (en) * | 2019-11-26 | 2020-02-28 | 珠海格力电器股份有限公司 | Control method and device for preventing dry heating of heating equipment, heating equipment and storage medium |
| CN111010757A (en) * | 2019-12-20 | 2020-04-14 | 深圳市鑫汇科股份有限公司 | Electromagnetic heating method and electromagnetic heating device |
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