CN203444120U - Induction type liquid detector and cooking utensil - Google Patents
Induction type liquid detector and cooking utensil Download PDFInfo
- Publication number
- CN203444120U CN203444120U CN201320465790.1U CN201320465790U CN203444120U CN 203444120 U CN203444120 U CN 203444120U CN 201320465790 U CN201320465790 U CN 201320465790U CN 203444120 U CN203444120 U CN 203444120U
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- container
- induction type
- type liquid
- heat
- control module
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Abstract
The utility model relates to an induction type liquid detector and a cooking utensil having the same; the detector comprises a control module and a container used for containing liquid; the container is made of non-metal material; a detection unit is arranged outside the bottom wall of the container; the control module comprises an oscillator unit used for generating high frequency signals and connected with the detection unit; the bottom wall of the container is provided with a heating disk electrically connected with the control module; the heating disk and the bottom wall of the container are connected in a sealing manner; the heating disk is earthed; the detection unit and the heating disk are mutually and electrically isolated. The induction type liquid detector can detect whether the container is filled with liquid or not under a non-contact condition; the detector is simple and easy to use, low in cost, strong in practicality, and the cooking utensil employing the detector can effectively prevent dry-burning from happening.
Description
Technical field
The utility model relates to non-contact liquid field of detecting, more specifically, relates to the cooking apparatus of a kind of induction type liquid sniffer and this sniffer of application.
Background technology
For household electrical appliance such as soy bean milk making machine, hot-water bottle and steaming stewpots, how effectively anti-dry is the problem that safe design must be considered always.In prior art, can, by set temperature sensor in water container, when the temperature of temperature sensor reaches capping, think that dry combustion method has occurred container.
In another kind of design, household electrical appliance add water-level probe in water container, when setting when water level is during lower than some liquid level positions, be considered as in water container, there is no water, but this set of prior art need to be bored a hole on the wall of chamber, and carrying out effective sealing, its complex structure, inconvenience are cleaned.
Utility model content
The purpose of this utility model, overcomes the deficiencies in the prior art exactly, and a kind of induction type liquid sniffer and a kind of cooking apparatus are provided.Utilize this device to have no liquid to survey in can realizing container in noncontact situation, adopt the cooking apparatus of this sniffer can anti-dry.
In order to reach first object of the present utility model, adopt following technical scheme:
A kind of induction type liquid sniffer, comprise control module and for the container of carrying liquid, described container is non-metallic material, described vessel bottom wall arranged outside is useful on the probe unit of emission of high frequency signals, described control module comprises the oscillator unit for generation of high-frequency signal, described oscillator unit is connected with probe unit, on described vessel bottom wall, be provided with the heat-generating units being electrically connected to control module, described heat-generating units and vessel bottom wall are tightly connected, described heat-generating units ground connection, the electricity isolation mutually of described probe unit and heat-generating units.
As a kind of specific embodiment, the material of described probe unit is metal or graphite.
Further, described probe unit is the spring that sheet metal, derby, tinsel or tinsel turn to.
As a kind of specific embodiment, described heat-generating units is electric heat-generating disc.
As a kind of specific embodiment, the material of described container is pottery, plastics or glass.
In order to realize second object of the present utility model, adopt following technical scheme:
, comprise above-mentioned induction type liquid sniffer.
Compared with prior art, the beneficial effects of the utility model are:
Induction type liquid sniffer described in the utility model is by the electric capacity between induction probe unit and the heat-generating units of vessel bottom wall, in having realized in noncontact situation container, there is the detection of no liquid, this sniffer is simple and easy to use, with low cost, practical, adopt the cooking apparatus of this sniffer, effectively anti-dry.
Accompanying drawing explanation
Fig. 1 is the structural representation of induction type liquid sniffer described in the utility model.
Fig. 2 is the electrical block diagram one of induction type liquid sniffer described in the utility model.
Fig. 3 is the electrical block diagram two of induction type liquid sniffer described in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further:
Referring to Fig. 1, induction type liquid sniffer described in the utility model, comprise control module 6 and for the container 1 of carrying liquid 5, described container 1 is non-metallic material, described container 1 bottom wall outer is provided with the probe unit 4 for emission of high frequency signals, described control module 6 comprises the oscillator unit for generation of high-frequency signal, described oscillator unit is connected with probe unit 4, on described container 1 diapire, be provided with the heat-generating units being electrically connected to control module 6, described heat-generating units and container 1 diapire are tightly connected, described heat-generating units ground connection, described probe unit 4 and heat-generating units electricity isolation mutually.
Above-mentioned heat-generating units can be the heater elements such as heat-generating disc, heating board, heater, PTC.In the present embodiment, heat-generating units is preferably electric heat-generating disc 2.Above-mentioned probe unit 4 is arranged at container 1 bottom wall outer, probe unit 4 can be metal or graphite, the spring that more preferably sheet metal, derby, tinsel or tinsel turn to, in order to reach optimum Effect on Detecting, at least a portion and container 1 exterior bottom wall as probe unit 4 surfaces fit, and the material of said vesse 1 is pottery, plastics or glass.
Based on said structure and setting, cook utensil principle of work described in the utility model is as follows:
The oscillator unit output frequency of control module 6 is high-frequency signal more than KHz, and this high-frequency signal is added on the probe unit 4 of container 1 bottom outside via wire.Owing to being loaded on heat-generating disc 2 shells on container 1 by bottom line 3 grounding connections, therefore, when pour tap water 5 in container 1 time, be equivalent to tap water 5 and heat-generating disc 2 ground connection in container 1.Said structure is equivalent to form a coupling capacitance H between probe unit 4 and tap water 5, the capacity of this electric capacity H is generally several pico farads to tens pico farads, utilize the logical friendship of electric capacity every straight characteristic, when the high-frequency signal from oscillator unit is by after coupling capacitance H dividing potential drop, signal level on probe unit 4 will reduce, in control module 6, by detection port, read the signal value size variation on probe unit 4, then be converted into general-purpose simulation signal by amplification, can in Sensing container 1, have no liquid.
Choose that in container 1, to have or not the two states of tap water 5 be the detection process that example illustrates sensing apparatus described in the utility model below.Referring to Fig. 2, while also not packing into without tap water 5 in container 1, between probe unit 4 and ground wire 3, be open circuit, the signal level on probe unit 4 is larger; And when user is to container 1 after interior injection tap water 5, between probe unit 4 and tap water 5, form a coupling capacitance, be equivalent on probe unit 4 and an electric capacity, now control module 6 detects probe unit 4 level and changes, and judges thus in container 1 and has liquid to exist.
The utility model is claimed a kind of cooking apparatus also, and this cooking apparatus has been applied liquid sniffer mentioned above, effectively anti-dry.
Should be appreciated that, above specific embodiment is just explained in detail preferred implementation of the present utility model, but the utility model is not limited to above-mentioned embodiment, in the utility model, the electromagnetic wave that also accessible other circuit except oscillator unit produce corresponding band of described control module 6 is surveyed.In a word, in the cognition that one skilled in the relevant art possesses, above-described embodiment can also be made various variations under the prerequisite that does not depart from the utility model aim, and these distortion are all in the scope of the utility model claim protection.
Claims (6)
1. an induction type liquid sniffer, comprise control module and for the container of carrying liquid, it is characterized in that, described container is non-metallic material, described vessel bottom wall arranged outside is useful on the probe unit of emission of high frequency signals, described control module comprises the oscillator unit for generation of high-frequency signal, described oscillator unit is connected with probe unit, on described vessel bottom wall, be provided with the heat-generating units being electrically connected to control module, described heat-generating units and vessel bottom wall are tightly connected, described heat-generating units ground connection, the electricity isolation mutually of described probe unit and heat-generating units.
2. induction type liquid sniffer as claimed in claim 1, is characterized in that, the material of described probe unit is metal or graphite.
3. induction type liquid sniffer as claimed in claim 2, is characterized in that, described probe unit is the spring that sheet metal, derby, tinsel or tinsel turn to.
4. the induction type liquid sniffer as described in claim 1-3 any one, is characterized in that, described heat-generating units is electric heat-generating disc.
5. the induction type liquid sniffer as described in claim 1-3 any one, is characterized in that, the material of described container is pottery, plastics or glass.
6. a cooking apparatus, is characterized in that, comprises induction type liquid sniffer as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320465790.1U CN203444120U (en) | 2013-07-31 | 2013-07-31 | Induction type liquid detector and cooking utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320465790.1U CN203444120U (en) | 2013-07-31 | 2013-07-31 | Induction type liquid detector and cooking utensil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203444120U true CN203444120U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320465790.1U Expired - Lifetime CN203444120U (en) | 2013-07-31 | 2013-07-31 | Induction type liquid detector and cooking utensil |
Country Status (1)
| Country | Link |
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| CN (1) | CN203444120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108324090A (en) * | 2018-04-16 | 2018-07-27 | 广东天际电器股份有限公司 | A kind of same shaft multifunctional detection stews device |
-
2013
- 2013-07-31 CN CN201320465790.1U patent/CN203444120U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108324090A (en) * | 2018-04-16 | 2018-07-27 | 广东天际电器股份有限公司 | A kind of same shaft multifunctional detection stews device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |