CN205919373U - Electromagnetic oven - Google Patents
Electromagnetic oven Download PDFInfo
- Publication number
- CN205919373U CN205919373U CN201620850862.8U CN201620850862U CN205919373U CN 205919373 U CN205919373 U CN 205919373U CN 201620850862 U CN201620850862 U CN 201620850862U CN 205919373 U CN205919373 U CN 205919373U
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- Prior art keywords
- thermometric loop
- thermometric
- electromagnetic oven
- control board
- loop
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- 238000010438 heat treatment Methods 0.000 claims abstract description 78
- 238000003854 Surface Print Methods 0.000 claims abstract description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 6
- 238000009529 body temperature measurement Methods 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 1
- 230000006698 induction Effects 0.000 description 3
- 208000010086 Hypertelorism Diseases 0.000 description 2
- 206010020771 Hypertelorism of orbit Diseases 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides an electromagnetic oven. The utility model discloses the electromagnetism stove is including heating panel (1), shell (2), control circuit board (3) and the coil panel that is used for placing the pan, control circuit board (3) with the coil panel all is located shell (2) with in the cavity that heating panel (1) encloses, control circuit board (3) with the coil panel electricity is connected, the lower surface printing of heating panel (1) has at least one temperature measurement return circuit (4) that is formed by thermistor thick liquids, the both ends of temperature measurement return circuit (4) with control circuit board (3) electricity is connected. The utility model discloses the temperature of pan when can the sensing electromagnetism stove heating, simple structure, cost are lower.
Description
Technical field
This utility model is related to household appliance technical field, more particularly, to a kind of electromagnetic oven.
Background technology
With the raising of scientific and technological development and people's living standard, the household electrical appliance such as electromagnetic oven more and more occur in people
Life in.
Current electromagnetic oven, when being heated, needs to sense the temperature of pan by temperature-sensing element, thus controlling electromagnetism
The mode of heating of stove and heating power.At present, temperature-sensing element mainly has following several set-up mode: one kind is on heating panel
Perforate, and allow the temperature-sensing elements such as critesistor to expose from hole, go forward side by side trip temperature collection in directly contact pan bottom, then by temperature
Signal feeds back to the control chip of electromagnetic oven, controls mode of heating；Another kind is mounting temperature sensor internal in pan, temperature
The Temperature Feedback collecting to the control chip of electromagnetic oven, and is controlled mode of heating by sensor.
However, perforate arranges the mode of temperature-sensing element on heating panel, it is likely to result in heating panel deformed damaged, and right
The waterproof sealing of electromagnetic oven has a negative impact；And on pan mounting temperature sensor, then also need to arrange supporting signal
Emitter and receptor, complex structure, relatively costly.
Utility model content
This utility model provides a kind of electromagnetic oven, the temperature of pan when can sense electromagnetic oven heating, and structure is simple and becomes
This is relatively low.
This utility model provides a kind of electromagnetic oven, including for the heating panel of placing cooker, shell, control board and
Coil panel, control board and coil panel are respectively positioned in the cavity that shell and heating panel are surrounded, control board and coil
Disk electrically connects, and the lower surface of heating panel is printed with least one thermometric loop being formed by Thermistor, thermometric loop
Two ends and control board electrical connection.So when on heating panel, placing cooker is heated, equally on heating panel
Thermometric loop can sense the change of temperature, and itself resistance changes therewith.So would know that the temperature variations of pan.
Optionally, control board is arranged to the heating work(of the change control coil disk of the resistance value according to thermometric loop
Rate.So control board can according to the whole change in resistance in thermometric loop the mode of heating of control coil disk and heating work(
Rate.
Optionally, when the resistance value in thermometric loop becomes big, the heating power of control board control coil disk reduces；Thermometric
The resistance value in loop becomes hour, and the heating power of control board control coil disk increases.So when thermometric loop resistance value becomes big,
Illustrate that temperature raises, now control board can reduce the heating power of coil panel；And thermometric loop resistance value diminishes, then temperature fall
Low, now control board can raise the heating power of coil panel.
Optionally, thermometric loop is located at the centre of heating panel lower surface.So thermometric loop can be more accurate
Sense top pan temperature, it is to avoid situation hypertelorism between thermometric loop and pan occurring and can not sensing.
Optionally, the quantity in thermometric loop is at least two, and at least two thermometric loops are arranged on the following table of heating panel
On the diverse location in face.The scope that so thermometric loop can sense is larger, ensure that acquisition more comprehensively and accurately pot
Tool temperature information.
Optionally, at least two thermometric loops include the first thermometric loop and the second thermometric loop, and the first thermometric loop is enclosed
It is wound on outside the second thermometric loop.So can effectively expand the induction area in thermometric loop it is ensured that thermometric loop gets standard
True pan temperature.
Optionally, thermometric loop is the ring-type with opening, and the two ends of opening and control board electrically connect.So thermometric
Loop can cover larger scope on heating panel, and shape is relatively simple, and manufacturing cost is relatively low.
Optionally, control board passes through the two ends connection in contact and thermometric loop.
Optionally, control board includes at least one contact sets, and each contact sets all includes two contacts, each thermometric
Loop includes the first leading foot and the second leading foot, the first leading foot in each thermometric loop and the second leading foot respectively and
Different contact portions in same contact sets.Different thermometric loops so can be allowed independently to carry out and control board between even
Connect it is ensured that the reliability when carrying out temperature sensing for the thermometric loop.
Optionally, Thermistor is semistor slurry.
Optionally, heating panel is insulation board.So on the one hand can avoid being affected by coil panel alternating magnetic field, separately
On the one hand it is also ensured that the normal work in thermometric loop.
Construction of the present utility model and its other purposes and beneficial effect will by combine accompanying drawing and to preferred reality
Apply the description of example and become apparent from understandable.
Brief description
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are
Some embodiments of the present utility model, for those of ordinary skill in the art, in the premise not paying creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the electromagnetic oven that this utility model embodiment one provides；
Fig. 2 is the structural representation of the heating panel that this utility model embodiment one provides.
Description of reference numerals:
1 heating panel；2 shells；3 control boards；4 thermometric loops；41 first thermometric loops；42
Two thermometric loops；411st, 421 first leading foot；412nd, 422 second leading foot.
Specific embodiment
Purpose, technical scheme and advantage for making this utility model embodiment are clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described it is clear that being retouched to the technical scheme in this utility model embodiment
The embodiment stated is a part of embodiment of this utility model, rather than whole embodiments.Based on the enforcement in this utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work, broadly fall into
The scope of this utility model protection.
Fig. 1 is the structural representation of the electromagnetic oven that this utility model embodiment one provides.Fig. 2 is this utility model embodiment
The structural representation of the heating panel of one offer.As depicted in figs. 1 and 2, the present embodiment provide electromagnetic oven specifically include for
The heating panel 1 of placing cooker, shell 2, control board 3 and coil panel (not shown), control board 3 and coil panel
It is respectively positioned in the cavity that shell 2 and heating panel 1 are surrounded, control board 3 and coil panel electrically connect, under heating panel 1
Surface printing has at least one thermometric loop 4 being formed by Thermistor, the two ends in thermometric loop 4 and control board 3
Electrical connection.
Wherein, heating panel 1 and shell 2 define an electromagnetic oven shell body closed, the enclosure interior of electromagnetic oven jointly
It is provided with for producing high-frequency alternating electromagnetic field, with coil panel that metal pan is heated be used for being powered and control
The control board 3 of coil panel heating.Coil panel is typically relative with the heating panel 1 of electromagnetic oven, and when being heated, pan can
It is placed on the upper surface of heating panel 1, and the coil panel of electromagnetic oven can be heated to pan bottom by electromagnetic field.
It is printed with the thermometric loop 4 that Thermistor is formed as ink in the lower surface of heating panel 1.Temperature-sensitive electricity
Resistance paste is by can be conductive, and the self-resistance value material more sensitive to temperature change is made.Thermometric loop 4 is by temperature-sensitive electricity
On the lower surface that resistance paste is laid in heating panel 1 by way of printing, thus constituting a film layer, the thickness of this film layer is relatively
Little, the assembling of heating panel 1 will not be caused interfere.The two ends in thermometric loop 4 are connected with control board 3, so that controlling electricity
Constitute the circuit loop of a closing between road plate 3 and thermometric loop 4, and the resistance in thermometric loop 4 is by being printed on heating panel 1
The length in thermometric loop 4 of lower surface, width and thickness determine.Additionally, heating panel 1 is insulation board, so on the one hand permissible
On the other hand avoid being affected by coil panel alternating magnetic field, it is also ensured that the normal work in thermometric loop 4.
Because the material in composition thermometric loop 4 is Thermistor, its resistance is more sensitive to the change of temperature, so
When on heating panel 1, placing cooker is heated, the thermometric loop 4 equally on heating panel 1 can sense the change of temperature
Change, and itself resistance changes therewith.
Further, control board 3 is arranged to adding of the change control coil disk of the resistance value according to thermometric loop 4
Thermal power, thus heating-up temperature when ensureing that coil panel heats to pan.
General, Thermistor is semistor slurry, its resistance value with temperature rising and not
That is to say, that temperature value is higher, its resistance value is bigger for disconnected increase, thus can be by the corresponding situation of resistance value and temperature, will
The resistance value in thermometric loop is converted into corresponding temperature value.
Corresponding, when the resistance value in thermometric loop 4 becomes big, the heating power of control board 3 control coil disk reduces；
The resistance value in thermometric loop 4 becomes hour, and the heating power of control board 3 control coil disk increases.So when thermometric loop 4 hinders
Value becomes big, illustrates that the temperature of pan raises, now control board 3 can reduce the heating power of coil panel；And thermometric loop 4 hinders
Value diminishes, then pan temperature reduces, and now control board 3 can raise the heating power of coil panel.
Common, thermometric loop 4 has certain path and area, can cover the pan corresponding position of larger area,
So compare by the way of temperature probe detects pan temperature with conventional, larger to the sensing range of temperature, it can be avoided that single
When point detects, the not accurate enough problem of temperature sensor occurs.
As preferred, in order to ensure heats, pan is generally arranged at the centre position of electromagnetic oven.Correspond to therewith
, thermometric loop 4 is located at the centre of the lower surface of heating panel 1.So thermometric loop 4 can accurately sense
The pan temperature of top, it is to avoid situation hypertelorism between thermometric loop 4 and pan occurring and can not sensing.
Because thermometric loop 4 is printed on heating panel 1, and the self structure of heating panel 1 does not change, so
Do not interfere with structural strength and the water resistance of heating panel 1, more reliably.
Because pan is likely to occur metaboly, that is, the bottom of a pan may be uneven, the heating surface of such the bottom of a pan and electromagnetic oven
Loose contact between plate 1, and lead to pan larger in the temperature contrast of different contact position with heating panel 1.If now only
Only sense the temperature of certain point, it is inaccurate to be likely to result in temperature sensor, and computer heating control is adversely affected.In order to more complete
The temperature of the acquisition pan in face, the quantity in thermometric loop 4 is at least two, and at least two thermometric loops are arranged on heating panel 1
The diverse location of lower surface on.Because thermometric loop 4 can be distributed in the different parts on heating panel 1 lower surface, for example, survey
Temperature loops are all distributed in the centre of heating panel, but the coverage in thermometric loop is larger, or different thermometric loop is divided
Cloth at the center of heating panel or leans on antermarginal different parts, so all can make the scope that thermometric loop 4 can sense
Larger it is ensured that more comprehensively and accurately pan temperature information can be obtained.
Further, in order to the thermometric loop using negligible amounts reaches larger induction area, when thermometric loop is more than
Article one, when, at least two thermometric loops include the first thermometric loop 41 and the second thermometric loop 42, the first thermometric loop 41 around
Outside the second thermometric loop 42.The second thermometric loop 42 so can be made by paracentral position positioned at heating panel 1, to protect
The temperature sensing effect to pan bottom centre for the card, and the outside being located at the second thermometric loop 42 is enclosed in the first thermometric loop 41, can
With effective induction area expanding thermometric loop it is ensured that thermometric loop 4 gets accurate pan temperature.
As preferred embodiment, general thermometric loop 4 may be configured as the ring-type with opening, the two ends of opening and control
Circuit board 3 processed electrically connects.So thermometric loop 4 can cover larger scope on heating panel 1, and shape is relatively simple, manufactures
Cost is relatively low.
In order to realize the connection between thermometric loop 4 and control board 3, control board 3 can be provided with for electricity
The contact connecting, and control board 3 passes through the two ends connection in these contacts and thermometric loop 4.Contact and the two of thermometric loop 4
Can be to be linked together using modes such as welding between end.
Further, when heating panel 1 lower surface of electromagnetic oven is printed with a plurality of thermometric loop, for realizing thermometric loop
Connection between 4 and control board 3, control board 3 includes at least one contact sets, and each contact sets all includes two
Contact, each thermometric loop includes the first leading foot and the second leading foot, and such as the first thermometric loop 41 includes the first leading foot 411
With the second leading foot 412, the second thermometric loop includes the first leading foot 421 and the second leading foot 422, in each thermometric loop
First leading foot and the second leading foot respectively with same contact sets in different contact portions.So can allow different thermometric loops
Independently it is attached and control board 3 between it is ensured that thermometric loop 4 carries out the reliability of temperature sensing.
In the present embodiment, electromagnetic oven includes heating panel for placing cooker, shell, control board and coil panel,
Control board and coil panel are respectively positioned in the cavity that shell and heating panel are surrounded, and control board and coil panel are electrically connected
Connect, the lower surface of heating panel is printed with least one thermometric loop being formed by Thermistor, the two ends in thermometric loop
With control board electrical connection.Thermometric so when placing cooker is heated on heating panel, equally on heating panel
Loop can sense the change of temperature, and itself resistance changes therewith.Thus temperature signal is fed back to control board, with root
Mode of heating and heating power according to the Temperature control coils disk of pan.
Last it is noted that various embodiments above is only in order to illustrating the technical solution of the utility model, rather than it is limited
System；Although being described in detail to this utility model with reference to foregoing embodiments, those of ordinary skill in the art should
Understand: it still can be modified to the technical scheme described in foregoing embodiments, or to wherein some or all of
Technical characteristic carries out equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from this practicality new
The scope of type each embodiment technical scheme.
Claims (11)
1. a kind of electromagnetic oven, including for the heating panel (1) of placing cooker, shell (2), control board (3) and coil panel,
Described control board (3) and described coil panel are respectively positioned on the cavity that described shell (2) and described heating panel (1) are surrounded
Interior, described control board (3) and described coil panel electrical connection it is characterised in that described heating panel (1) lower surface printing
There are at least one thermometric loop (4) being formed by Thermistor, the two ends of described thermometric loop (4) and described control circuit
Plate (3) electrically connects.
2. electromagnetic oven according to claim 1 is it is characterised in that described control board (3) is arranged to according to described
The change of the resistance value in thermometric loop (4) controls the heating power of described coil panel.
3. electromagnetic oven according to claim 2 it is characterised in that described thermometric loop (4) resistance value become big when, described
Control board (3) controls the heating power of described coil panel to reduce, and the resistance value of described thermometric loop (4) becomes hour, described
Control board (3) controls the heating power of described coil panel to increase.
4. the electromagnetic oven according to any one of claim 1-3 is it is characterised in that described thermometric loop (4) is located at described adding
The centre of hot panel (1) lower surface.
5. the electromagnetic oven according to any one of claim 1-3 it is characterised in that the quantity in described thermometric loop (4) be to
Few two, described at least two, thermometric loop (4) are arranged on the diverse location of lower surface of described heating panel (1).
6. electromagnetic oven according to claim 5 is it is characterised in that thermometric loop (4) described at least two include the first survey
Temperature loops (41) and the second thermometric loop (42), described first thermometric loop (41) is centered around described second thermometric loop (42) outward
Side.
7. the electromagnetic oven according to any one of claim 1-3 is it is characterised in that described thermometric loop (4) is to have opening
Ring-type, the two ends of described opening and described control board (3) electrical connection.
8. the electromagnetic oven according to any one of claim 1-3 is it is characterised in that described control board (3) passes through contact
Connect with the two ends of described thermometric loop (4).
9. electromagnetic oven according to claim 8 is it is characterised in that described control board (3) includes at least one contact
Group, each described contact sets all includes two contacts, and each described thermometric loop all includes the first leading foot and the second leading foot,
Described first leading foot in each described thermometric loop and described second leading foot respectively with same described contact sets in not
Same contact portion.
10. the electromagnetic oven according to any one of claim 1-3 is it is characterised in that described Thermistor is positive temperature
Coefficient resistance slurry.
11. the electromagnetic oven according to any one of claim 1-3 is it is characterised in that described heating panel (1) is insulation board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620850862.8U CN205919373U (en) | 2016-08-04 | 2016-08-04 | Electromagnetic oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620850862.8U CN205919373U (en) | 2016-08-04 | 2016-08-04 | Electromagnetic oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205919373U true CN205919373U (en) | 2017-02-01 |
Family
ID=57870510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620850862.8U Active CN205919373U (en) | 2016-08-04 | 2016-08-04 | Electromagnetic oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205919373U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019795A (en) * | 2017-12-11 | 2018-05-11 | 深圳国创名厨商用设备制造有限公司南海分公司 | A kind of electromagnetic oven |
| CN112996156A (en) * | 2019-12-13 | 2021-06-18 | 谢勇 | Heat transfer device and electric heating appliance |
-
2016
- 2016-08-04 CN CN201620850862.8U patent/CN205919373U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019795A (en) * | 2017-12-11 | 2018-05-11 | 深圳国创名厨商用设备制造有限公司南海分公司 | A kind of electromagnetic oven |
| CN112996156A (en) * | 2019-12-13 | 2021-06-18 | 谢勇 | Heat transfer device and electric heating appliance |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |