CN101929894A - Heat probe - Google Patents
Heat probe Download PDFInfo
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- CN101929894A CN101929894A CN200910040495XA CN200910040495A CN101929894A CN 101929894 A CN101929894 A CN 101929894A CN 200910040495X A CN200910040495X A CN 200910040495XA CN 200910040495 A CN200910040495 A CN 200910040495A CN 101929894 A CN101929894 A CN 101929894A
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Abstract
The invention discloses a heat probe which has temperature sensing accuracy and is applied to electromagnetic induction heating cooking tools. The invention skillfully and simply solves the technical contradictions that temperature detection is not accurate when a heat probe with a conductive assembly generates heat per se in a stronger variable magnetic filed by overcoming the technical mistakes of the prior art through arranging a shielding assembly outside a heat sensing assembly. In addition, an installation connecting structure which can be detached and assembled easily is also arranged in the heat probe and is convenient to clean; and an installation groove is provided with a water outlet, therefore, seeped water can be discharged outside through connected water pipes. By the invention, a plurality of problems in practices can be eliminated, the technical scheme of the heat probe can achieve higher practical value, the temperature of a contact type cooker can be detected more accurately; moreover, the heat probe can be applied to actual products faster so as to really realize high-quality energy-saving induction type intelligent cooking.
Description
Technical field
The present invention relates to a kind of temperature-sensing probe of electrical heating cooking tools, especially a kind of temperature-sensitive that is applied to the electromagnetic induction heating cooking tools is temperature-sensing probe accurately.
Background technology
The culinary art type of heating of electromagnetic induction is for allowing the direct heating of cooking container self by the variation magnetic field, have advantages such as thermal efficiency height, thermal inertia are little, safe in utilization, easy to operate, now except that being widely used in electromagnetic oven, also progressively begin to be applied to electromagnetism heating electric rice cooker, electromagnetism heating soy bean milk making machine, electromagnetism adds the hot-water bottle constant pitch can cooking tools.
The accurate temperature controlling of electromagnetic induction cooking tools, high-quality intelligent cooking all be unable to do without the accurate temperature-sensitive of temperature-sensing probe to splendid attire things or water cooking container.But, since temperature-sensing probe generally need be installed in heater coil inside or near, and heater coil produces the conductive component self-heating that powerful electromagnetic field can make temperature-sensing probe contain, and has caused temperature-sensitive inaccurate, and this is a contradiction and is technological difficulties of present industry.
As on February 22nd, 2006 publication number be " magnet controlled electromagnetic oven " Chinese patent of CN1737432A, its temperature-sensing probe is on the basis of the temperature-sensing probe of traditional heating disc type electric cooker, former ferromagnetic sleeve is made into the sleeve of nonferromugnetic material.Numerous conductive components such as aluminium top cover on this scheme temperature-sensing probe still are in and change more by force in the electromagnetic field, still can self-heating.As on January 3rd, 2007 publication number be " a kind of electromagnetic oven temperature controlling device " Chinese patent of CN1889797A, be mainly to pass the downward heat conduction of circular hole that panel is provided with by nonmetallic graphite, thermistor is set below graphite carries out thermometric.Even the heat conductor of this scheme adopts nonmetallic graphite, but it is a good conductor, also can respond to the change electromagnetic field and generates heat and influence the temperature result of detection.The industry ubiquity such technology prejudice at present, and thinking exactly only has ferromagnetic material or metal material just can generate heat in the variation magnetic field.
Summary of the invention
The objective of the invention is to overcome on the basis of above technology prejudice and solve the above technical deficiency of existing temperature-sensing probe, and provide a kind of be not subjected to the interference of electromagnetic field, temperature-sensitive accurately and simple in structure, can be applicable to the temperature-sensing probe that electromagnetic oven, electromagnetism heating electric rice cooker, electromagnetism heating soy bean milk making machine, electromagnetism add induction heating cooking instrument such as hot-water bottle.
At first for above-mentioned technology prejudice, every in fact conductor all can form and is equivalent to closed coil, and it is in, and inner magnetic flux will change in the magnetic field of variation, produces then to allow the induction current of self-heating, has caused thermometric inaccurate.
Again on this basis, further for achieving the above object:
A kind of temperature-sensing probe, its characteristics comprise:
The temperature module, its front end face and the cooking container position form fit that is contacted detection, and contain the temperature-sensing element of at least one contact;
Shield assembly, it is any described in following a or the b,
A. be mainly the insulation permeability magnetic material and make, be located at sidepiece or the sidepiece and the rear portion of described the temperature module;
B. contain magnetic conductive metal layer and heat preserving and insulating material layer, wherein the magnetic conductive metal layer is located at sidepiece or the sidepiece and the rear portion of described the temperature module, and the heat preserving and insulating material layer then is located between described magnetic conductive metal layer and the described the temperature module.
Above-described temperature-sensing probe, and also containing can be with the elastic body of described the temperature module or the ejection of described shield assembly.
Above-described temperature-sensing probe, wherein, described shield assembly is mainly made by ferrite.
Above-described temperature-sensing probe wherein, but also is provided with the microswitch that the described the temperature module of perception touches cooking container, can guarantee that end face contacts with cooking container.
Above-described temperature-sensing probe, wherein, described the temperature module and described shield assembly are to interfix or the structure of relative slip.
Above-described temperature-sensing probe, and, also be provided with mount pad, and mount pad contains and can allow described the temperature module from the screw-type mounting connection structure or the buckle-type mounting connection structure of the place ahead dismounting, can be convenient to the user and clean.
Above-described temperature-sensing probe, wherein, described shield assembly participates in constituting mounting groove, and the bottom of described mounting groove is provided with freeing port.
Above-described temperature-sensing probe, wherein, described temperature-sensing element is for to contact with pan by the heat conduction cap that is fastened, or is directly to contact with pan.
Above-described temperature-sensing probe, wherein, described temperature-sensing element is the magnetic temperature control element.
Above-described temperature-sensing probe, wherein, described temperature-sensing element is thermistor or thermopair, the lead periphery that each connected is provided with the magnetic conduction screen layer.
Beneficial effect of the present invention:
1. overcome original technology prejudice,, can significantly reduce electromagnetic interference (EMI), overcome technical contradiction for a long time, made the accurate thermometric of contact pan can be used for actual product sooner by at the temperature module peripheral hardware shield assembly.
2. magnetic conductive metal is skillfully constructed in conjunction with the shield assembly scheme of heat preserving and insulating material layer, and cost is low, is easy to moulding and installation, and durable, can be adapted to not too strong position, magnetic field, as being installed in the sidepiece of electromagnetic oven, surveys the temperature in the pan outside from sidepiece.
3. Ping Bi ferrite also is the poor conductor of heat, also can allow the temperature-sensing probe heat reduce scatter and disappear and not influenced by extraneous air-flow, moisture etc., and more stable thermometric.
4. the periphery at the output lead of thermistor and thermopair is provided with the magnetic conduction screen layer, can prevent that output signal is subjected to the interference of electromagnetic field, makes thermometric more accurate, designs more perfect.
5. the present invention also is provided with the mounting connection structure of dismounting easily, is convenient to cleaning, and mounting groove is provided with the band freeing port, and infiltration can be got rid of outside the body by the aqueduct that links to each other again.What eliminated more actual uses is not to make scheme more have practical value.
The present invention program also have simple in structure, with low cost, the advantage of the wide model of purposes.
Description of drawings
Fig. 1, Fig. 2 are embodiments of the invention one structural representations;
Fig. 3 is embodiments of the invention two structural representations;
Fig. 4 is embodiments of the invention three structural representations;
Fig. 5 is embodiments of the invention four structural representations.
Description of reference numerals:
1-heat conduction cap 2-thermistor
3-shielding ferrite 4-panel
5-spring 6-freeing port
7-wire outlet 8-magnetic conduction screen layer
9-lead 10-mount pad
11-adiabator layer 12-installation sleeve
12a-loose slot 12b-dismantles mouth
13-carriage 14-microswitch
15-magnetic conductive metal layer 16-magnetic temperature control element
17-permanent magnet 18-connecting link
Embodiment
First embodiment
A kind of temperature-sensing probe as shown in Figure 1 and Figure 2 comprises: the thermistor 2 that the heat conduction cap 1 of front end face, its rear wall are closely fixing, be wrapped in the cup-shaped shielding ferrite 3 of heat conduction cap 1 outside and bottom, and between the space that the surrounds adiabator layer 11 of filling.Cup-shaped shielding ferrite 3 week also tightly be with tubular metal installation sleeve 12, its below and the mount pad 10 that is fixed on induction heating apparatus horizontal panel 4 through holes active card cover connection mutually, wherein, mount pad 10 is provided with the jam of protrusion, 12 of installation sleeves are provided with the curve draw-in groove that contains dismounting mouthful 12b and loose slot 12a, when dismantling, installation sleeve 12 can be pressed the middle part after rotation it can be mentioned.The outside and bottom at installation sleeve 12 also are provided with second the shielding ferrite 3 that constitutes mounting groove, and its upper limb places the bottom surface of panel 4, and the bottom offers freeing port 6 and wire outlet 7, and are provided with spring 5 between the lower edge of its bottom and installation sleeve 12.The periphery that connects the lead 9 of thermistor 2 is sheathed with magnetic conduction screen layer 8, and it goes out through wire outlet 7.This embodiment can be installed on the electromagnetic oven, and the central structure of the mounting groove that its shielding ferrite 3 constitutes and the heater coil mounting disc of below is complementary.
Second embodiment
A kind of temperature-sensing probe as shown in Figure 3 comprises: the thermistor 2 that the heat conduction cap 1 of front end face, its rear wall are closely fixing, the cup-shaped that is wrapped in electric heating cap 1 outside and bottom shields ferrite 3.The outside of cup-shaped shielding ferrite 3 and bottom also are provided with second the shielding ferrite 3 that constitutes mounting groove, and its bottom offers freeing port 6 and wire outlet 7, and is provided with spring 5 between its bottom and the electric heating cap 1.The below that is wrapped in the cup-shaped shielding ferrite 3 of electric heating cap 1 outside and bottom is provided with the carriage 13 that prevents that undue back from pressing, and carriage 13 is provided with microswitch 14.The periphery that connects the lead 9 of thermistor 2 is sheathed with magnetic conduction screen layer 8, and it goes out through wire outlet 7.
The 3rd embodiment
A kind of temperature-sensing probe as shown in Figure 4 comprises: front end face is smooth and be connected with the thermistor 2 of lead 8, is wrapped in the cup-shaped magnetic conductive metal layer 15 of thermistor 2 outsides and bottom, and between the adiabator layer 11 that leaves the space and be filled with.This magnetic conductive metal layer 15 is made for iron material, and adiabator layer 11 is the inorganic mineral cotton material, and its outside can be provided with protective seam, and thermistor 2 can be reinforced by the bonding agent of anti-the temperature-sensitive.
The 4th embodiment
A kind of temperature-sensing probe as shown in Figure 5, comprise: the heat conduction cap 1 of front end face, jacket the cup-shaped shielding ferrite 3 of its outer survey and below, between can be buckled in shielding ferrite 3 inwalls by the lower edge abduction of heat conduction cap 1 the groove (not shown) that is provided with fix, and between leave the heat cushion space that rises.Between in the space that becomes of jacket, heat conduction cap 1 rear wall closely is fixed with magnetic temperature control element 16, Dui Ying below is provided with permanent magnet 17 with it.Permanent magnet 17 passes the ferritic connecting link 18 of shielding with part and is connected.Leave the gap and be provided with spring 5 between permanent magnet 17 and the magnetic temperature control element 16.
Above embodiment only is used to illustrate technical scheme of the present invention and is unrestricted, to the modification of technical scheme of the present invention, be equal to replacement, and do not break away from the spirit and scope of technical solution of the present invention.
Claims (10)
1. temperature-sensing probe, its feature comprises:
The temperature module, its front end face and the cooking container position form fit that is contacted detection, and contain the temperature-sensing element of at least one contact;
Shield assembly, it is any described in following a or the b,
A. be mainly the insulation permeability magnetic material and make, be located at sidepiece or the sidepiece and the rear portion of described the temperature module;
B. contain magnetic conductive metal layer and heat preserving and insulating material layer, wherein the magnetic conductive metal layer is located at sidepiece or the sidepiece and the rear portion of described the temperature module, and the heat preserving and insulating material layer then is located between described magnetic conductive metal layer and the described the temperature module.
2. temperature-sensing probe as claimed in claim 1 is characterized in that, also containing can be with the elastic body of described the temperature module or the ejection of described shield assembly.
3. temperature-sensing probe as claimed in claim 1 is characterized in that described shield assembly is mainly made by ferrite.
4. temperature-sensing probe as claimed in claim 3 is characterized in that, but also is provided with the microswitch that the described the temperature module of perception touches pan.
5. as each temperature-sensing probe as described in claim 3 or 4, it is characterized in that described the temperature module and described shield assembly are to interfix or the structure of relative slip.
6. as each temperature-sensing probe as described in claim 3 or 4, it is characterized in that, also be provided with mount pad, and mount pad contains and can allow screw-type mounting connection structure or the buckle-type mounting connection structure of described the temperature module from the place ahead dismounting.
7. as each temperature-sensing probe as described in claim 3 or 4, it is characterized in that described shield assembly participates in constituting mounting groove, the bottom of described mounting groove is provided with freeing port.
8. as each temperature-sensing probe as described in claim 3 or 4, it is characterized in that described temperature-sensing element is for to contact with pan by the heat conduction cap that is fastened, or be directly to contact with cooking container.
9. as each temperature-sensing probe as described in claim 3 or 4, it is characterized in that described temperature-sensing element is the magnetic temperature control element.
10. as each temperature-sensing probe as described in claim 3 or 4, it is characterized in that described temperature-sensing element is thermistor or thermopair, the lead periphery that each connected is provided with the magnetic conduction screen layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910040495XA CN101929894A (en) | 2009-06-19 | 2009-06-19 | Heat probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910040495XA CN101929894A (en) | 2009-06-19 | 2009-06-19 | Heat probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101929894A true CN101929894A (en) | 2010-12-29 |
Family
ID=43369198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910040495XA Pending CN101929894A (en) | 2009-06-19 | 2009-06-19 | Heat probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101929894A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384797A (en) * | 2011-04-22 | 2012-03-21 | 深圳市鑫汇科电子有限公司 | Temperature sensing assembly used for detecting surface temperature of induction cooker and mounting method thereof |
| CN104614088A (en) * | 2015-01-19 | 2015-05-13 | 上海交通大学 | High-accuracy wall temperature measuring device |
| WO2015149437A1 (en) * | 2014-04-04 | 2015-10-08 | 广东万事泰集团有限公司 | Steaming pan provided with plurality of temperature sensing probes, and method for steam cooking food |
| WO2015149436A1 (en) * | 2014-04-04 | 2015-10-08 | 广东万事泰集团有限公司 | Smart pan provided with single temperature-sensing probe, and method for frying food |
| CN111307309A (en) * | 2018-12-11 | 2020-06-19 | 舍弗勒技术股份两合公司 | Temperature sensor, composite piezoelectric sensor and axle box or bearing saddle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2786583Y (en) * | 2005-03-14 | 2006-06-07 | 佛山市美的日用家电集团有限公司 | Temperature examining equipment for microwave strong electromagnetic field and microwave heating |
| CN2836392Y (en) * | 2005-05-27 | 2006-11-08 | 郑州中凯电器有限公司 | High-frequency electromagnetic fine controlled wide temperature range heater |
| JP2007017212A (en) * | 2005-07-06 | 2007-01-25 | Yoshinori Kanno | Temperature sensor |
| CN2916422Y (en) * | 2005-08-23 | 2007-06-27 | 吕忠明 | Electromagnetic oven temperature measurer capable of directly sensing temperature of heated pot |
| CN101307924A (en) * | 2008-06-06 | 2008-11-19 | 叶小舟 | Electromagentic furnace provided with magnetic induction temperature measuring equipment |
-
2009
- 2009-06-19 CN CN200910040495XA patent/CN101929894A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2786583Y (en) * | 2005-03-14 | 2006-06-07 | 佛山市美的日用家电集团有限公司 | Temperature examining equipment for microwave strong electromagnetic field and microwave heating |
| CN2836392Y (en) * | 2005-05-27 | 2006-11-08 | 郑州中凯电器有限公司 | High-frequency electromagnetic fine controlled wide temperature range heater |
| JP2007017212A (en) * | 2005-07-06 | 2007-01-25 | Yoshinori Kanno | Temperature sensor |
| CN2916422Y (en) * | 2005-08-23 | 2007-06-27 | 吕忠明 | Electromagnetic oven temperature measurer capable of directly sensing temperature of heated pot |
| CN101307924A (en) * | 2008-06-06 | 2008-11-19 | 叶小舟 | Electromagentic furnace provided with magnetic induction temperature measuring equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384797A (en) * | 2011-04-22 | 2012-03-21 | 深圳市鑫汇科电子有限公司 | Temperature sensing assembly used for detecting surface temperature of induction cooker and mounting method thereof |
| WO2015149437A1 (en) * | 2014-04-04 | 2015-10-08 | 广东万事泰集团有限公司 | Steaming pan provided with plurality of temperature sensing probes, and method for steam cooking food |
| WO2015149436A1 (en) * | 2014-04-04 | 2015-10-08 | 广东万事泰集团有限公司 | Smart pan provided with single temperature-sensing probe, and method for frying food |
| CN104614088A (en) * | 2015-01-19 | 2015-05-13 | 上海交通大学 | High-accuracy wall temperature measuring device |
| CN111307309A (en) * | 2018-12-11 | 2020-06-19 | 舍弗勒技术股份两合公司 | Temperature sensor, composite piezoelectric sensor and axle box or bearing saddle |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 528300 Guangdong province Foshan city Shunde District Daliang Street East Road, No. 8 Chang Yu Garden Applicant after: Zhang Huawen Address before: 525253 No. 1 Renmin South Road, Zhenjiang Town, Guangdong, Gaozhou Applicant before: Zhang Huawen |
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 528300, No. 1, 1st floor, 1st Street, Dongming Road, Daliang street, Shunde District, Guangdong, Foshan Applicant after: Zhang Huawen Address before: 528300 Guangdong province Foshan city Shunde District Daliang Street East Road, No. 8 Chang Yu Garden Applicant before: Zhang Huawen |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101229 |