CN203980610U - A kind of level gauge of liquid heater - Google Patents
A kind of level gauge of liquid heater Download PDFInfo
- Publication number
- CN203980610U CN203980610U CN201420453685.0U CN201420453685U CN203980610U CN 203980610 U CN203980610 U CN 203980610U CN 201420453685 U CN201420453685 U CN 201420453685U CN 203980610 U CN203980610 U CN 203980610U
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- container
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- temperature
- load coil
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Abstract
The utility model discloses a kind of level gauge of liquid heater, comprise housing, non-conductor container, liquid heating, in described container, conduit is set, end at conduit is placed with temperature-sensing probe, described liquid heating comprises load coil and the metal cylinder in container, the end of described conduit with spacing distance A near described metal cylinder; Described temperature-sensing probe is positioned on the liquid level control line of container; Described temperature-sensing probe connects controller, and controller drives load coil.Thereby the utility model is judged the variation of water level in kettle exactly by the variation of temperature, make the control of lowest water level be easy to realize, extended the service life of liquid heater, the electricity piece of stopping to cause because water level is too low damages and potential safety hazard, prevents water heater dry combustion method.
Description
Technical field
The utility model relates to the liquid heater technical fields such as electric kettle, specifically relates to a kind of level gauge of liquid heater.
Background technology
Electric kettle is a kind of common electrical equipment, common structure is with electric heater, the water in kettle container to be heated until water is boiled, mostly electric heater is use resistance-type heat-generating pipe, general electric heating tube, under the state of lack of water, will burn out in the extremely short time, in electric heater use procedure, because water evaporation, water level decline, easily cause liquid to dryout, heater burns out, and security incident even occurs.Therefore,, in the time that electric kettle is heated up water, the water level in kettle can not be lower than lowest water level, in order to avoid blow heat-generating pipe.About the electrical safety problem of liquid heater, in national standard, there is relevant regulation, comprise mark and the control of high-low water level, at present, in order to prevent the malfunctioning or exsiccosis dry combustion method of temperature control, most liquid heater uses bimetallic mechanical switch to be used as protection, easily cause dry combustion method to prevent that boiler water level is too low, also the electric kettle having answers the principle that water can conduct electricity to judge the water level in kettle, and basis using this as water level control, as disclosed Chinese utility model patent on August 6th, 2008, the patent No. is the electric kettle level detecting device of CN200720172731.X, it is provided with detecting window at electric kettle, inside there is water-level detecting point, in the time that water level soaked a certain position, between the water surface and sensing point, form electric loop, thereby cause the variation of resistance value, can judge the concrete water level of electric kettle according to sensing point position and resistance data.But there is following shortcoming in above prior art:
1) bimetal release is easy to realize the burning prevention function under exsiccosis, but lowest water level in restive kettle.
2) metallic conductor of putting by water-level detecting and the change in resistance of water judge that the precision of method of water level height is not high, have very big difficulty in technique, and circuit structure is quite complicated, high expensive.
Utility model content
The utility model technical issues that need to address are, provide a kind of simple in structure, with low cost, reliable operation, application electromagnetic induction principle by the liquid heater level gauge of water heating, to overcome the deficiencies in the prior art.
The technical solution of the utility model is: a kind of level gauge of liquid heater, comprise housing, non-conductor container, liquid heating, in described container, conduit is set, the end of conduit is placed with temperature-sensing probe, described liquid heating comprises load coil and the metal cylinder in container, the end of described conduit with spacing distance A near described metal cylinder; Described temperature-sensing probe is positioned on the liquid level control line of container; Described temperature-sensing probe connects controller, and controller drives load coil.
In the level gauge of above-mentioned liquid heater, described liquid heating also comprises insulated enclosure cover, and described load coil is set in insulated enclosure cover, outside described insulated enclosure cover, around described load coil, described metal cylinder is set.
A level gauge for liquid heater, comprises housing, container, in described container, conduit is set, and the end of conduit is placed with temperature-sensing probe, and described container is metalware, and the end of described conduit is the inwall near container with spacing distance A; Outer wall around described container in described housing is provided with load coil; Described temperature-sensing probe is positioned on the liquid level control line of container; Described temperature-sensing probe connects controller, and controller drives load coil.
In the level gauge of above-mentioned liquid heater, the spacing distance A of the end of described conduit is within the scope of 5≤A≤15mm.
In the level gauge of above-mentioned liquid heater, described conduit inserts internal tank from the bottom of container, is provided with insulation spacer at the root of conduit.
In the level gauge of above-mentioned liquid heater, there is soft magnetism rod at the interior spatial placement of described load coil.
In the level gauge of above-mentioned liquid heater, in described housing, the outer wall position of corresponding load coil is provided with soft magnetism ring.
In the level gauge of above-mentioned liquid heater, described insulated enclosure cover is made up of non-metallic refractory.
The beneficial effects of the utility model are: the utility model adopts near the environment temperature of temperature sensor collection heating metal lowest water level, in the time that water level drops to lowest water level (liquid level control line), near environment temperature heating metal will raise rapidly, thereby judge exactly the variation of water level in kettle by the variation of temperature, make the control of lowest water level be easy to realize, extend the service life of liquid heater, the electricity piece of stopping to cause because water level is too low damages and potential safety hazard, prevents water heater dry combustion method.
The utility model adopts temperature sensor as detecting element, temperature sensor is by thermistor or the temperature variant principle work of thermocouple, this electrical equipment technology maturation, reliability is high, cost is low and control precisely, can be rapidly, effectively water level is made to accurate judgement, make water level judgement more accurate and timely, make the utlity model has the advantages such as simple in structure, general, power saving, safety.
Brief description of the drawings
Fig. 1 is embodiment mono-structural representation of the level gauge of the utility model liquid heater.
Fig. 2 is embodiment bis-structural representations of the level gauge of the utility model liquid heater.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model will be further described.
Embodiment mono-
Referring to Fig. 1, the level gauge of liquid heater of the present utility model, comprise housing 8, non-conductor container 6, liquid heating, at the interior conduit 3 that arranges of container 6, the end of conduit 3 is placed with temperature-sensing probe, described liquid heating comprises insulated enclosure cover 4, at the interior load coil 1 that arranges of insulated enclosure cover 4, outside described insulated enclosure cover 4, around described load coil 1, described metal cylinder 2 is set.The end of described conduit 3 with spacing distance A near described metal cylinder; Described temperature-sensing probe is positioned on the liquid level control line of container; Described temperature-sensing probe connects the input of controller, and controller drives load coil.The bottom of housing 8 is bases 5, and each functional circuit plate of electric device is arranged in base 5, includes controller and electric control circuit.Soft magnetism rod 7 is made up of soft magnetic materials, forms magnetic screen wall.Insulated enclosure cover 4 is made up of non-metallic refractory.Conduit 3 inserts internal tank from the bottom of container, is provided with insulation spacer 9 at the root of conduit.
For the electric equipment products of liquid heater class; for ensureing product electrical safety; except conventional temperature control electrical design, fuse protection, the minimum liquid level of confined liquid heater, can effectively prevent the accidents such as the temperature that heating system excess Temperature causes is burnt, element burns.
Liquid heater of the present utility model adopts magnetic field induction eddy heating for heating principle, under the effect of load coil alternating magnetic field, and the inner eddy current that forms of metal cylinder, heating, heats water rapidly.The end of conduit is positioned on the liquid level control line of liquid heater by electromagnetic induction, be that temperature-sensing probe is arranged on liquid level control line, the scope of the distance A of it and metal barrel is 5≤A≤15mm, when non-conductor container 6(is as glass) in liquid (as water) during higher than liquid level control line, water will soak temperature-sensing probe, the temperature that temperature-sensing probe detects is the temperature of water body, along with liquid heater by electromagnetic induction constantly heats, water evaporation in glass, water level declines, when water level is during lower than liquid level control line, temperature-sensing probe leans out the water surface, metal cylinder part ring body is exposed in air, and now, metal cylinder continues heating, near air themperature its heat makes raises rapidly, make the detected temperature value of temperature-sensing probe increase thereupon, due to the input of temperature-sensing probe connection controller, therefore, controller is by reading the input signal of temperature-sensing probe, can judge in glass real time water level lower than liquid level control line.The output of controller connects the drive circuit of load coil, thereby can disconnect the power supply of load coil 1, makes liquid heater stop heating.
The liquid level controlling method of liquid heater by electromagnetic induction of the present utility model is such: be built-in with metal cylinder at non-conductor container, at non-conductor container, load coil is set outward, metal cylinder is placed within the scope of the alternating magnetic field magnetic line of force of load coil, electric control circuit provides alternating current to load coil, near the liquid level control line of metal cylinder inner side, temperature-sensing probe is set, temperature-sensing probe connects controller, the heating liquid desired temperature of liquid heater by electromagnetic induction is Ta, preset difference value Tb.When the liquid level in non-conductor container is during higher than liquid level control line, liquid in container soaked temperature-sensing probe, and the real time temperature value T that temperature-sensing probe detects is by the fluid temperature approximating in window, in the time that liquid level drops to lower than liquid level control line, temperature-sensing probe is exposed in air, and metal cylinder raises rapidly near air themperature, in the time that the real time temperature value T of temperature-sensing probe detection meets T >=Ta+Tb, system is thought, liquid level in container is lower than police circles' line, thus the power supply of disconnection load coil.
Liquid level controlling method of the present utility model is in order to prevent that liquid heater from also working on when lower than minimum liquid level, when the liquid level in container lower than set position time, liquid heater will cut off the power supply of load coil, and, in order to make heating and temperature control quit work simultaneously simultaneously, on the major loop of electric control circuit, power switch is set, in the time that the real time temperature value T of temperature-sensing probe detection meets T >=Ta+Tb, disconnecting power switch.
The scope of above-mentioned heating liquid desired temperature Ta is 60-100 DEG C.The scope of difference Tb is 5-25 DEG C.Preferred: the scope of Ta is 80-100 DEG C.The scope of difference Tb is 10-20 DEG C.
In the utility model, in metal cylinder, discharge groove or discharge aperture can be set, when load coil produces superaudio electromagnetic field, the magnetic line of force penetrates the non-magnetic containers such as borosilicate high temp glass kettle, water body in vessel is carried out to high frequency cutting, and be placed in the annular metal in non-magnetic container, under the galvanomagnetic-effect effect of load coil, form internal vortex and generate heat, and, discharge groove on it or discharge aperture generation electric discharge phenomena, by water light current solution, the hydrogen bond of hydrone is disconnected, thereby promote the water of macromolecular mass to be converted into small-micelle water.Liquid heater of the present utility model is become is of value to the new functional product of health.
Embodiment bis-
Referring to Fig. 2, the level gauge of liquid heater of the present utility model, comprises housing 8, container 6, conduit 3 is set in described container, conduit end be placed with temperature-sensing probe, described container 6 is metalwares, the end of described conduit 3 is the inwall near container with spacing distance A; In described housing 8, be provided with load coil 1 around the outer wall of described container; Described temperature-sensing probe is positioned on the liquid level control line of container; Described temperature-sensing probe connects controller, and controller drives load coil.The spacing distance A of the end of conduit is within the scope of 5≤A≤15mm.In described housing, the outer wall position of corresponding load coil 1 is provided with soft magnetism ring 10.
All the other design features that the level gauge of embodiment is not stated are identical with embodiment mono-, and its liquid level controlling method is also identical with embodiment mono-, do not repeat to describe in detail at this.
Disclosed is above only specific embodiment of the utility model; do not form the restriction to the utility model protection domain; all changes without process creative work of doing according to technical solutions of the utility model, within all should dropping on protection domain utility model of the present utility model.
Claims (8)
1. the level gauge of a liquid heater, comprise housing, non-conductor container, liquid heating, it is characterized in that: in described container, conduit is set, end at conduit is placed with temperature-sensing probe, described liquid heating comprises load coil and the metal cylinder in container, the end of described conduit with spacing distance A near described metal cylinder; Described temperature-sensing probe is positioned on the liquid level control line of container; Described temperature-sensing probe connects controller, and controller drives load coil.
2. the level gauge of liquid heater according to claim 1, it is characterized in that: described liquid heating also comprises insulated enclosure cover, described load coil is set in insulated enclosure cover, outside described insulated enclosure cover, around described load coil, described metal cylinder is set.
3. the level gauge of a liquid heater, comprise housing, container, it is characterized in that: in described container, conduit is set, is placed with temperature-sensing probe at the end of conduit, described container is metalware, and the end of described conduit is the inwall near container with spacing distance A; Outer wall around described container in described housing is provided with load coil; Described temperature-sensing probe is positioned on the liquid level control line of container; Described temperature-sensing probe connects controller, and controller drives load coil.
4. according to the level gauge of the liquid heater described in claim 2 or 3, it is characterized in that: the spacing distance A of the end of described conduit is within the scope of 5≤A≤15mm.
5. according to the level gauge of the liquid heater described in claim 2 or 3, it is characterized in that: described conduit inserts internal tank from the bottom of container, is provided with insulation spacer at the root of conduit.
6. the level gauge of liquid heater according to claim 2, is characterized in that: the interior spatial placement at described load coil has soft magnetism rod.
7. the level gauge of liquid heater according to claim 3, is characterized in that: in described housing, the outer wall position of corresponding load coil is provided with soft magnetism ring.
8. the level gauge of liquid heater according to claim 2, is characterized in that: described insulated enclosure cover is made up of non-metallic refractory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453685.0U CN203980610U (en) | 2014-08-13 | 2014-08-13 | A kind of level gauge of liquid heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453685.0U CN203980610U (en) | 2014-08-13 | 2014-08-13 | A kind of level gauge of liquid heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203980610U true CN203980610U (en) | 2014-12-03 |
Family
ID=51978041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420453685.0U Withdrawn - After Issue CN203980610U (en) | 2014-08-13 | 2014-08-13 | A kind of level gauge of liquid heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203980610U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371479A (en) * | 2014-08-13 | 2016-03-02 | 顺德职业技术学院 | Liquid level device of liquid heater |
| CN111214110A (en) * | 2020-01-14 | 2020-06-02 | 江苏感恩机械有限公司 | Self-heating vacuum cup with liquid level display function |
| CN111380230A (en) * | 2020-04-18 | 2020-07-07 | 吴见 | Dry burning prevention sensor |
| CN113623871A (en) * | 2021-08-23 | 2021-11-09 | 小熊电器股份有限公司 | Liquid heater and dry-heating-preventing heating control method thereof |
-
2014
- 2014-08-13 CN CN201420453685.0U patent/CN203980610U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371479A (en) * | 2014-08-13 | 2016-03-02 | 顺德职业技术学院 | Liquid level device of liquid heater |
| CN105371479B (en) * | 2014-08-13 | 2018-04-20 | 顺德职业技术学院 | A kind of level gauge of liquid heater |
| CN111214110A (en) * | 2020-01-14 | 2020-06-02 | 江苏感恩机械有限公司 | Self-heating vacuum cup with liquid level display function |
| CN111380230A (en) * | 2020-04-18 | 2020-07-07 | 吴见 | Dry burning prevention sensor |
| CN113623871A (en) * | 2021-08-23 | 2021-11-09 | 小熊电器股份有限公司 | Liquid heater and dry-heating-preventing heating control method thereof |
| CN113623871B (en) * | 2021-08-23 | 2022-11-18 | 小熊电器股份有限公司 | Liquid heater and dry-heating-preventing heating control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20180420 |
|
| AV01 | Patent right actively abandoned |