CN105371478A - Liquid heater - Google Patents
Liquid heater Download PDFInfo
- Publication number
- CN105371478A CN105371478A CN201410395486.3A CN201410395486A CN105371478A CN 105371478 A CN105371478 A CN 105371478A CN 201410395486 A CN201410395486 A CN 201410395486A CN 105371478 A CN105371478 A CN 105371478A
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- electrode
- container
- liquid heater
- controller
- load coil
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Abstract
The invention discloses a liquid heater. The liquid heater comprises a shell, a container, an induction heating coil and a controller. The controller is used for controlling alternating currents to be output to the induction heating coil. The liquid heater further comprises a first electrode and a second electrode which stretch into the container which is a non-conductor container, and the first electrode and the second electrode are in signal connection with the controller. According to the liquid heater, the principle that the conductivity of water is high is used, when the two electrodes are immersed in liquid in the liquid heater, the two electrodes are in short-circuit connection, the controller can accurately judge the liquid level situation in the container through detection of the conductivity between the two electrodes, and therefore the liquid level can be controlled.
Description
Technical field
The present invention relates to the liquid heater technical fields such as electric kettle.
Background technology
Along with the continuous popularization of electromagentic furnace technology, application electromagnetic induction principle, makes the metallic conductor inside in alternating magnetic field form eddy-current heating, thus the liquid heater by electromagnetic induction of heating liquid is also started the concern being subject to people.Liquid heater by electromagnetic induction, compared to resistance heating formula electric heater, has obviously energy-saving effect, has beyond measure promotional value.For the electrical safety problems of liquid heater, in national standard, there is relevant regulation for the mark of high-low water level and control, require multiple electrical safety measurement, thus reach the use safety object of electric product.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; to prevent, boiler water level is too low easily causes dry combustion method; but; operation principle due to liquid heater by electromagnetic induction by alternating magnetic field, metallic conductor is generated heat; therefore; this product can not use bimetal release as the barrier preventing liquid dry combustion method; at present; for liquid heater by electromagnetic induction, also there is no the ideal scheme of the liquid level monitorings such as effective anti-dry.
Summary of the invention
The technical issues that need to address of the present invention are, provide a kind of structure simple, be quick on the draw rapidly, the liquid heater of reliable operation, the inside liquid level of heater is effectively controlled, increases electrical safety coefficient, to overcome the deficiencies in the prior art.
Technical scheme of the present invention is: a kind of liquid heater, comprise housing, container, load coil, controller, described controller is used for controlling to export alternating current to load coil, and also comprise and stretch into the first electrode in described non-conductor container and the second electrode, described first electrode is connected with controller signals with the second electrode.
Also comprise projection, described first electrode and the second electrode are arranged on projection.
Above described housing, button is provided with lid, and described first electrode stretches out downwards in lid, and described second electrode passes non-conductor wall of a container face and extend into non-conductor internal tank.
Described first electrode, the second electrode pass non-conductor wall of a container face and extend into non-conductor internal tank.
Sidewall or the bottom of described container are provided with perforate, and described first electrode or the second electrode enter into internal tank through perforate, and described perforate is also provided with sealing ring.
Described container is metalware, and described load coil is arranged around container.
Described container is that non-conductive material obtains, and in container, arrange metal cylinder, metal cylinder is within the scope of the magnetic line of force that load coil produces.
Described metal cylinder is provided with discharge groove or discharge aperture, described container be by glass or pottery or plastics obtain.
The invention has the beneficial effects as follows: the present invention is provided with two electrodes, when dipped two electrode of the liquid of liquid heater, because electrical conductivity of water is larger, resistance is less, short circuit conducting between two electrodes, when the liquid level in liquid heater is lower than one of them electrode, water conducting is no longer included between two electrodes, and the electrical conductivity of air or water vapour be water hundreds thousand of/mono-, make the resistance between two electrodes very large, present breaking phenomena, controller is by the detection of the conductance between two electrodes, accurately can judge the level condition in container, when liquid level is lower than one of them electrode, controller sends control signal, order about load coil control circuit major loop to disconnect, electromagnetic induction heating conductor internal vortex disappears, stop heating water, water level no longer reduces, effectively prevent too low due to water level and electricity piece that is that cause damages and potential safety hazard, prevent water heater dry combustion method.
Accompanying drawing explanation
Fig. 1 is the structural representation of liquid heater of the present invention.
Fig. 2 is another mounting structure schematic diagram of the present invention two electrode.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment one
See Fig. 1-2, liquid heater of the present invention, comprise controller, housing, container 3, load coil 1, metal cylinder 2 to be arranged in container 3 and to be within the scope of the magnetic line of force that load coil 1 produces, controller is used for controlling to export alternating current to load coil, and controller comprises on circuit boards, and namely load coil 1 is electrically connected with circuit board.In liquid injecting container, heated by metal cylinder 2.Above housing, button is provided with lid 5, the drive circuit board (not shown) of load coil 1 is provided with in lid 5, the lower wall of lid 5 is provided with a projection, projection arranges downwards the first electrode 6, first electrode stretches out downwards in lid 5, when lid cap seal container, the lower end of the first electrode 6 is just on Liquid level line.Second electrode 7 passes wall of a container face and extend into internal tank, and equally, the second electrode 7 is also arranged on projection.Perforate is set at the sidewall of container or bottom, makes the second electrode 7 enter into internal tank through perforate, the perforate of container is also provided with sealing ring 10, prevent liquid in container from tapping seepage.Two electrodes extend in container from upper and lower two ends, and the spacing between two electrodes is within the scope of 40-130mm, if distance is less than 40mm, then cause electrode to stretch into the length of container long, impact uses.If this distance is greater than 130mm, then detection signal is subject to distance impact, fluctuates larger.Present embodiment considers above problem, and the optimum value setting this distance is 45-65mm.When water level is higher than the first electrode, due to the electric conductivity of water, two electrodes are conducted, and when water level is lower than the first electrode, there is not conducting medium between two electrodes, and two electrodes form open circuit, thus send break signal to controller.Now, the control circuit of load coil disconnects, and load coil quits work, and metal cylinder no longer produces heat.
Liquid heater by electromagnetic induction of the present invention adopts magnetic field induction eddy heating for heating principle, and under the effect of load coil alternating magnetic field, underwater gold belongs to cylinder inside and forms eddy current, generates heat rapidly, is heated by water.
Embodiment two
Refer to Fig. 2, shown in Fig. 2 is the second embodiment of liquid heater of the present invention.With the difference of embodiment one be: described first electrode 6, second electrode 7 all enters into internal tank from the bottom wall of container.The height of two electrodes can be identical, also can be different, in like manner, when water level is higher than two electrodes, due to the electric conductivity of water, two electrodes are conducted, when water level is lower than one of them electrode, there is not conducting medium between two electrodes, two electrodes form open circuit, now, controller signals, stop powering to load coil, load coil quits work, metal cylinder no longer produces heat, and water level no longer declines.In the present embodiment, all the other structures and beneficial effect are all consistent with the first embodiment, repeat no longer one by one here.
Embodiment three
On the basis of embodiment one or two, container 3 is designed to metalware, cancel metal cylinder, load coil is arranged around container, makes the metal interior structures of container directly produce eddy-current heating, by heating liquid.All the other structures and beneficial effect are all similar to first and second embodiment, repeat no longer one by one here.
Be only specific embodiments of the invention above, do not form limiting the scope of the invention, all according to technical solution of the present invention do without the need to the change through creative work, all should drop on protection scope of the present invention invention within.
Claims (8)
1. a liquid heater, comprise housing, container, load coil, controller, described controller is used for controlling to export alternating current to load coil, it is characterized in that: also comprise and stretch into the first electrode in described non-conductor container and the second electrode, described first electrode is connected with controller signals with the second electrode.
2. liquid heater according to claim 1, is characterized in that: also comprise projection, and described first electrode and the second electrode are arranged on projection.
3. liquid heater according to claim 1, is characterized in that: above described housing, button is provided with lid, and described first electrode stretches out downwards in lid, and described second electrode passes non-conductor wall of a container face and extend into non-conductor internal tank.
4. liquid heater according to claim 1, is characterized in that: described first electrode, the second electrode pass non-conductor wall of a container face and extend into non-conductor internal tank.
5. the liquid heater according to claim 3 or 4, is characterized in that: sidewall or the bottom of described container are provided with perforate, and described first electrode or the second electrode enter into internal tank through perforate, and described perforate is also provided with sealing ring.
6., according to the arbitrary described liquid heater of Claims 1-4, it is characterized in that: described container is metalware, described load coil is arranged around container.
7. according to the arbitrary described liquid heater of Claims 1-4, it is characterized in that: described container is that non-conductive material obtains, in container, arrange metal cylinder, metal cylinder is within the scope of the magnetic line of force that load coil produces.
8. liquid heater according to claim 7, is characterized in that: described metal cylinder is provided with discharge groove or discharge aperture, described container be by glass or pottery or plastics obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395486.3A CN105371478A (en) | 2014-08-13 | 2014-08-13 | Liquid heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410395486.3A CN105371478A (en) | 2014-08-13 | 2014-08-13 | Liquid heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105371478A true CN105371478A (en) | 2016-03-02 |
Family
ID=55373904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410395486.3A Pending CN105371478A (en) | 2014-08-13 | 2014-08-13 | Liquid heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105371478A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288359A (en) * | 2016-09-23 | 2017-01-04 | 艾欧史密斯(中国)热水器有限公司 | Water heater and control method thereof |
| CN112424412A (en) * | 2018-09-13 | 2021-02-26 | 松下知识产权经营株式会社 | Washing machine |
| CN114294819A (en) * | 2022-01-11 | 2022-04-08 | 新疆大学 | Liquid rapid heating device based on electromagnetic induction principle |
| CN115635153A (en) * | 2022-10-10 | 2023-01-24 | 武汉晨扬电子科技有限公司 | Inductor processing equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201548288U (en) * | 2009-05-21 | 2010-08-11 | 晶辉电器（深圳）有限公司 | Electronic device for detecting and displaying liquid level |
| CN201875877U (en) * | 2010-11-22 | 2011-06-22 | 樱花卫厨（中国）股份有限公司 | Dry-heating prevention tap-water heating structure |
| CN103974477A (en) * | 2014-03-26 | 2014-08-06 | 佛山市顺德区通脉电器有限公司 | Efficient and energy-saving electromagnetic induction heating device |
| CN203980611U (en) * | 2014-08-13 | 2014-12-03 | 顺德职业技术学院 | A kind of liquid heater |
-
2014
- 2014-08-13 CN CN201410395486.3A patent/CN105371478A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201548288U (en) * | 2009-05-21 | 2010-08-11 | 晶辉电器（深圳）有限公司 | Electronic device for detecting and displaying liquid level |
| CN201875877U (en) * | 2010-11-22 | 2011-06-22 | 樱花卫厨（中国）股份有限公司 | Dry-heating prevention tap-water heating structure |
| CN103974477A (en) * | 2014-03-26 | 2014-08-06 | 佛山市顺德区通脉电器有限公司 | Efficient and energy-saving electromagnetic induction heating device |
| CN203980611U (en) * | 2014-08-13 | 2014-12-03 | 顺德职业技术学院 | A kind of liquid heater |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288359A (en) * | 2016-09-23 | 2017-01-04 | 艾欧史密斯(中国)热水器有限公司 | Water heater and control method thereof |
| CN112424412A (en) * | 2018-09-13 | 2021-02-26 | 松下知识产权经营株式会社 | Washing machine |
| CN114294819A (en) * | 2022-01-11 | 2022-04-08 | 新疆大学 | Liquid rapid heating device based on electromagnetic induction principle |
| CN115635153A (en) * | 2022-10-10 | 2023-01-24 | 武汉晨扬电子科技有限公司 | Inductor processing equipment |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160302 |
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| RJ01 | Rejection of invention patent application after publication |