CN201156826Y - Ceramic semi-conductor heat insulating utensile - Google Patents
Ceramic semi-conductor heat insulating utensile Download PDFInfo
- Publication number
- CN201156826Y CN201156826Y CNU2008200786315U CN200820078631U CN201156826Y CN 201156826 Y CN201156826 Y CN 201156826Y CN U2008200786315 U CNU2008200786315 U CN U2008200786315U CN 200820078631 U CN200820078631 U CN 200820078631U CN 201156826 Y CN201156826 Y CN 201156826Y
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- heating sheet
- ceramic semiconductors
- chamber
- aluminium
- warmer
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Abstract
The utility model discloses a ceramic semiconductor heat retainer which is composed of an aluminium chamber and a heating ceramic semiconductor plate arranged in the aluminium chamber; wherein, the heating ceramic semiconductor plate is provided with two electrodes, the lead wires of which are led out from the end side of the aluminium chamber; the heating ceramic semiconductor plate and the electrodes are insulated from the aluminium chamber; the heating ceramic semiconductor plate adopts a PTC heating plate; the aluminium chamber and the PTC heating plate are tightly pressed together mechanically. The ceramic semiconductor heat retainer, which is mainly used on electrothermal appliances needing the heat-preserving function, such as electric cookers and electrothermal water boiler, can save energy and automatically perserve a constant temperature.
Description
Technical field
The utility model relates to a kind of ceramic semiconductors warmer.
Background technology
Along with growth in the living standard, utensils such as electric rice cooker, electric water boiler spread to each family of town and country the sixth of the twelve Earthly Branches, and to the quality that food meal drinking-water is incubated, more and more are subject to people's attention.The insulation employing mode of this appliances is at present: Electronic Control and bimetal release are controlled main heat-generating disc insulation; It generally is to make warmer with electric heating wires such as nickel filaments, invests on the main heating disk body to be incubated.When holding temperature requires 70 ± 10 ℃, the main heat-generating disc of the frequent connection of the electric contact of above-mentioned electronics, bimetal release heats up, and (the insulation power consumption of general electric rice cooker is 700 watts, the insulation power consumption of boiler is 1500 watts), can quicken the aged deterioration of main heat-generating disc so greatly, also difficulty avoids burning out of electric contact to cause fault.The general design power of wire warmer is 40-60 watt, is example to cook: when 103 ± 2 ℃ of good temperature of meal, connect the insulation power supply when temperature limit switch disconnects heat-generating disc.The waste heat that generate heat on the disk body this moment still has several Baidu, and warmer adds to heat up makes that heat goes up heating in the pot.Normal temperature after 5 hours the pot temperature still difficulty drop to 70 ℃.Be incubated electricity consumption in 10 hours 0.5 degree, not only waste electric energy, rice also loses mouthfeel.This phenomenon is the ubiquitous disadvantage of present ordinary electric rice cooker.
Summary of the invention
The purpose of this utility model provides a kind of ceramic semiconductors warmer, this warmer mainly utilizes the heating function of PTC heating sheet, realize insulation energy-conservation, the automatic constant-temperature formula, it is mainly used in electric rice cooker, electric water boiler etc. needs on the electric heating appliance of heat insulation function.
For achieving the above object, the utility model is taked following design:
A kind of ceramic semiconductors warmer, it is by an aluminium chamber and insert the indoor ceramic semiconductors of aluminium heating sheet and constitute, ceramic semiconductors heating sheet has two electrodes, and two contact conductors are drawn by the distolateral of aluminium chamber, mutually insulated between ceramic semiconductors heating sheet and electrode and aluminium chamber.
Described ceramic semiconductors heating sheet is PTC (POSITIVE) heating sheet.
Described aluminium chamber is aluminum pipe chamber, two M type abnormity side, special-shaped side's aluminum pipe chamber and the built-in tight moulding of PTC heating sheet mechanical pressure.
Two battery lead plates that described PTC heating sheet has are placed in, and it is upper and lower, and PTC heating sheet and electrode thereof are by parcel soft silk fabric of high-temperature insulation and the insulation of aluminium chamber.
For realizing with the utility model ceramic semiconductors warmer should on the aluminium chamber, having a screw installing hole at least attached on the main heating disk body in the electric heating appliances such as electric rice cooker, electric water boiler.
The utility model has the advantages that:
1, energy-conservation---power only is 1/3 of lectrothermal alloy wire warmer.
2, temperature persistance is stable---overtension, low excessively no matter, but the utility model ceramic semiconductors warmer operate as normal all, and be not subjected to time effects, even conduction time long can not take place yet holding temperature too high or inadequately, low excessively problem.
3, durable---because PTC heating sheet is more much longer than the lectrothermal alloy wire life-span, can not cause damage during overvoltage, can not make that warmer is overheated to be burnt out yet because of conduction time is long to heater.
4, service behaviour is strong---and no overvoltage overtemperature, low-pressure low-temperature and idle phenomenon take place, even PTC heating sheet has the slightly long shortcoming of high-temperature time, also the utility model warmer is needed just.
Description of drawings
Fig. 1 is the utility model ceramic semiconductors warmer structural representation (main cutaway view)
This is utility model ceramic semiconductors warmer structural representation (vertical view) for Fig. 2
Fig. 3 is the utility model ceramic semiconductors warmer structural representation (left cutaway view)
Fig. 4 is the utility model PTC heating chip architecture schematic diagram
Fig. 5 is applied to-the electrical principle schematic diagram of embodiment for the ceramic semiconductors warmer
Below in conjunction with specific embodiment the utility model is described in further details:
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the utility model ceramic semiconductors warmer is by an aluminium chamber 1 and insert the indoor ceramic semiconductors of aluminium heating sheet 2 and constitute, ceramic semiconductors heating sheet has two electrodes 3, and (ceramic semiconductors heating sheet adopts PTC heating sheet in the present embodiment, electrode is a plank frame, copper battery lead plate is good), two battery lead plates lead-in wire 4 can be drawn by the distolateral of aluminium chamber by the lead and the connecting ear that are with the high-temperature insulation pipe, mutually insulated between PTC heating sheet and electrode and aluminium chamber.
Described aluminium chamber 1 can be aluminum pipe chamber, two M type abnormity side, the flat respectively above and below of being located at PTC heating sheet of described two battery lead plates 3.For making the special-shaped aluminum pipe wall insulation of PTC heating sheet and two battery lead plates and aluminum pipe chamber, can wrap up the soft silk fabric of double-deck high-temperature insulation outward, indoor through mechanical compaction under the pressure of special-shaped aluminium.
Referring to Fig. 2, at least on warmer aluminium chamber, have a screw installing hole, present embodiment is opened at the non-lead-out wire of warmer aluminium chamber distolateral, and when being used for electric heating appliance such as its electric rice cooker of packing into, electric water boiler, being fixed is installed in the main heating disk body below of being close to utensil.
PTC (POSITIVE) the heating sheet that the utility model adopts is a kind of new special semiconductive ceramic device that can be temperature automatically controlled, it is a kind of thermistor equipment with positive temperature coefficient, its resistivity is non-linear, the cold-state resistance rate is little, and along with temperature rising resistivity increases, electric current reduces, PTC heating sheet temperature reduces, temperature reduces back resistivity and reduces, electric current increases, and elevates the temperature again, and so circulation change makes PTC heating sheet have temperature uniformity.The PTC heating sheet of selecting for use the raw material of different proportion to make has different constant temperature points, and temperature rise is fast, the power consumptive province.130 volts-270 volts can both operate as normal, and the actual measurement energising just can reach the steady temperature value in three minutes, on average the suitable 30W lectrothermal alloy wire of the constant temperature warmer warmer of 10W.And it is not high to the power supply stability requirement, and caloric value can be regulated automatically with variation of ambient temperature, and the response time is fast.The formation of the PTC heating sheet 2 that adopts in the present embodiment is referring to Fig. 4, constitute by ceramic matrix 201 and the Ohmic electrode coating 202 that is overlying on the matrix, it is to be primary raw material with the barium titanate, adds the chemicals warps such as strontium, titanium, aluminium of trace: batching, wet ball mill, shaping, sintering, apply technology such as Ohmic electrode, test and make.PTC heating sheet can improve power automatically and heat up when sense temperature drops to certain value, otherwise then power descends, and insulation is about 70 ℃.
When using, the utility model ceramic semiconductors warmer can select the different PTC heating sheet of specification for use according to the different requirements of using power.The ceramic semiconductors warmer is installed on the main heating disk body below of being close to utensil, and generate heat plate electrode lead-in wire of PTC is serially connected with in the main heat-generating disc electrical control circuit, as shown in Figure 5, K represents the temperature limit switch in the utensil among the figure, R1 is main heat-generating disc, and R2 is the utility model ceramic semiconductors warmer (being called for short the PTC warmer); Utilize the non-linear special conductive exothermal function of PTC heating sheet, on utensil, carry out the thermostatic type insulation.Its concrete operation principle is (being example with the electric rice cooker): during cooking food, the temperature limiter K switch is closed, main heat-generating disc heating power, and described PTC warmer is close to not conduct of road; In case meal is good, temperature limit switch K action inserts insulation and disconnects main heat-generating disc power supply, the at this moment attached PTC heating sheet spare that is affixed on the heating disk body, experience several Baidu high temperature on the disk body, the Curie's warm spot that is higher than PTC heating sheet the sixth of the twelve Earthly Branches so PTC heating sheet self does not generate heat, does not produce power consumption; Along with temperature slowly reduces, the heating of PTC heating sheet constant temperature continues to remain on about 70 ℃.PTC warmer and the series connection of main heat-generating disc that to be close to the road turn on the power supply, because of the resistance value (tens Europe) of main heat-generating disc is little more than warmer (several kilo-ohms), supply voltage almost all are added on the warmer, get electric work.In the present embodiment, during 220 volts of supply voltages, the voltage at main heat-generating disc two ends has only 8 volts, and the voltage on the warmer has 210 volts, and 20～30 watts of power consumptions are incubated electricity consumption in 10 hours 0.25 degree.So operate as normal is the thermostatic type insulation in Curie's warm spot of design, up to deenergization,, prolong the life-span of electric heating appliance greatly to the not at all influence of main heat-generating disc, saved the energy.
Claims (7)
1, a kind of ceramic semiconductors warmer, it is characterized in that: it is by an aluminium chamber and insert the indoor ceramic semiconductors of aluminium heating sheet and constitute, ceramic semiconductors heating sheet has two electrodes, and two contact conductors are drawn by the distolateral of aluminium chamber, mutually insulated between ceramic semiconductors heating sheet and electrode and aluminium chamber.
2, ceramic semiconductors warmer according to claim 1 is characterized in that: described ceramic semiconductors heating sheet is a PTC heating sheet.
3, ceramic semiconductors warmer according to claim 2 is characterized in that: described aluminium chamber is aluminum pipe chamber, two M type abnormity side, special-shaped side's aluminum pipe chamber and the built-in tight moulding of PTC heating sheet mechanical pressure.
4, ceramic semiconductors warmer according to claim 2 is characterized in that: two battery lead plates that described PTC heating sheet has are placed in, and it is upper and lower, and PTC heating sheet and electrode thereof are by parcel soft silk fabric of high-temperature insulation and the insulation of aluminium chamber.
5, ceramic semiconductors warmer according to claim 1 is characterized in that: have a screw installing hole on the aluminium chamber at least.
6, ceramic semiconductors warmer according to claim 1 is characterized in that: described PTC heating sheet and the double-deck high-temperature insulation silk fabric of battery lead plate outer wrapping, and molded with aluminum pipe chamber, abnormity side insulated pliers.
7, ceramic semiconductors warmer according to claim 1 is characterized in that: the upper and lower electrode cramp joint of described PTC heating sheet is with the lead and the connecting ear of high-temperature insulation pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200786315U CN201156826Y (en) | 2008-01-18 | 2008-01-18 | Ceramic semi-conductor heat insulating utensile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200786315U CN201156826Y (en) | 2008-01-18 | 2008-01-18 | Ceramic semi-conductor heat insulating utensile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201156826Y true CN201156826Y (en) | 2008-11-26 |
Family
ID=40104602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200786315U Expired - Fee Related CN201156826Y (en) | 2008-01-18 | 2008-01-18 | Ceramic semi-conductor heat insulating utensile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201156826Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011107862A1 (en) * | 2010-03-05 | 2011-09-09 | Simatelex Manufactory Co. Ltd. | Positive temperature co-efficient heating element |
-
2008
- 2008-01-18 CN CNU2008200786315U patent/CN201156826Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011107862A1 (en) * | 2010-03-05 | 2011-09-09 | Simatelex Manufactory Co. Ltd. | Positive temperature co-efficient heating element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20120118 |