CN205671926U - Electric pressure cooking saucepan and testing circuit thereof - Google Patents
Electric pressure cooking saucepan and testing circuit thereof Download PDFInfo
- Publication number
- CN205671926U CN205671926U CN201490000335.7U CN201490000335U CN205671926U CN 205671926 U CN205671926 U CN 205671926U CN 201490000335 U CN201490000335 U CN 201490000335U CN 205671926 U CN205671926 U CN 205671926U
- Authority
- CN
- China
- Prior art keywords
- electric pressure
- pressure cooking
- giant magnetoresistance
- cooking saucepan
- testing circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
A kind of electric pressure cooking saucepan and testing circuit thereof, testing circuit includes: the giant magnetoresistance (2) be arranged at the magnet in electric pressure cooking saucepan lid (1), being arranged in pot, and electrically connects with described giant magnetoresistance (2) with the control chip (3) of the actuated signal control electric pressure cooking saucepan duty according to described giant magnetoresistance (2).So, when electric pressure cooking saucepan is in heating, magnet (1) does not causes giant magnetoresistance (2) to produce induced signal close to giant magnetoresistance (2), induced signal instruction lid does not covers with pot, now, control chip (3) according to this actuated signal control electric pressure cooking saucepan not heating work, thus will avoid water in long-time heating causes pot and dryout and burn, it is ensured that electric pressure cooking saucepan uses safety.
Description
Technical field
The application relates to field of household appliances, particularly relates to a kind of electric pressure cooking saucepan and testing circuit thereof.
Background technology
Electric pressure cooking saucepan is convenient and practical with it, is deeply liked by users.Electric pressure cooking saucepan produces high pressure to food by heating
Product are cooked.In the routine use of electric pressure cooking saucepan, if in the case that the lid of electric pressure cooking saucepan does not fastens completely with pot
Starting heating, in long-time heating can cause pot, water dryouies and burns, and there is great potential safety hazard.
Content of the invention
The application is intended to solve at least to a certain extent one of above-mentioned technical problem.
According to the first aspect of the application, the application provides a kind of testing circuit for electric pressure cooking saucepan, comprising: be arranged at
Magnet in electric pressure cooking saucepan lid, the giant magnetoresistance being arranged in pot, and electrically connect with described giant magnetoresistance with according to described huge
The control chip of the actuated signal control electric pressure cooking saucepan duty of magnetic resistance.
Further, described giant magnetoresistance one end is connected with described control chip by current-limiting resistance, and the other end is grounded.
Further, the described current-limiting resistance one end of described giant magnetoresistance connection is also coupled to working power.
Further, described giant magnetoresistance is connected to described working power by a divider resistance.
Further, described control chip is also associated with an alarm.
According to the second aspect of the application, the application provides a kind of electric pressure cooking saucepan, comprising: lid and pot, described voltage
Power pot also includes a testing circuit, and this testing circuit includes: is arranged at the magnet in described lid, is arranged in described pot
Giant magnetoresistance, and electrically connect with described giant magnetoresistance with the actuated signal control electric pressure cooking saucepan duty according to described giant magnetoresistance
Control chip.
Further, described giant magnetoresistance one end is connected with described control chip by current-limiting resistance, and the other end is grounded.
Further, the described current-limiting resistance one end of described giant magnetoresistance connection is also coupled to working power.
Further, described giant magnetoresistance is connected to described working power by a divider resistance.
Further, described control chip is also associated with an alarm.
The application provides the benefit that:
By providing a kind of electric pressure cooking saucepan and testing circuit thereof, testing circuit includes: be arranged in electric pressure cooking saucepan lid
Magnet, the giant magnetoresistance being arranged in pot, and electrically connect with described giant magnetoresistance with the induced signal control according to described giant magnetoresistance
The control chip of electric pressure cooking saucepan duty processed.So, when electric pressure cooking saucepan is in heating, magnet does not causes huge close to giant magnetoresistance
Magnetic resistance produces induced signal, and induced signal instruction lid does not covers with pot, and now, control chip will be according to this induced signal control
Electric pressure cooking saucepan processed not heating work, thus avoid water in long-time heating causes pot and dryout and burn, it is ensured that Voltage force
Pot uses safety.
Brief description
Fig. 1 is the structural representation of the testing circuit for electric pressure cooking saucepan of the embodiment of the present application one.
Fig. 2 is the structural representation of the testing circuit for electric pressure cooking saucepan of the embodiment of the present application two.
Fig. 3 is the structural representation of the testing circuit for electric pressure cooking saucepan of the embodiment of the present application three.
Detailed description of the invention
Embodiments herein is described below in detail, and the example of described embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to be used for explaining the application, and it is not intended that restriction to the application.
In the description of the present application, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ", " up time
The orientation of the instruction such as pin ", " counterclockwise " or position relationship, for based on orientation shown in the drawings or position relationship, are for only for ease of
Describe the application and simplify description, rather than device or the element of instruction or hint indication must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore it is not intended that restriction to the application.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the present application, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.
In this application, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc.
Term should be interpreted broadly, for example, it may be fixing connect, it is also possible to be to removably connect, or be integrally connected；It can be machine
Tool connects, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two units
Connection within part.For the ordinary skill in the art, above-mentioned term can be understood as the case may be in this Shen
Concrete meaning in please.
In this application, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
Can include that the first and second features directly contact, it is also possible to include that the first and second features are not directly contact but by it
Other characterisation contact between.And, fisrt feature second feature " on ", " top " and " above " include that first is special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below " include that fisrt feature directly over second feature and oblique upper, or is merely representative of
Fisrt feature level height is less than second feature.
Combine accompanying drawing below by detailed description of the invention to be described in further detail the application.
Refer to Fig. 1, a kind of electric pressure cooking saucepan of this offer, comprising: lid and pot, lid and pot are in use in covering
State, now can carry out heat foods process, when not covering tightly and cannot cover, now may result in heat foods and water occur
The potential safety hazard dryouied and burn.Therefore, the present embodiment provides the detection that corresponding guarantee electric pressure cooking saucepan uses safety accordingly
Circuit.
Specifically, above-mentioned testing circuit includes: the 1st, the magnet being arranged in lid is arranged at giant magnetoresistance 2(in pot also
Claim magnetic resistance), and electrically connect with giant magnetoresistance 2 with the control of the actuated signal control electric pressure cooking saucepan duty according to giant magnetoresistance 2
Chip 3.Wherein, magnet 1 can be magnet.
It should be noted that, magnet 1 and giant magnetoresistance 2 are for detecting uncapping and closing lid of electric pressure cooking saucepan.At electric pressure cooking saucepan
When upper installation magnet 1 and giant magnetoresistance 2, it should remain that magnet 1 and giant magnetoresistance 2 lean on when electric pressure cooking saucepan closing lid puts in place
Closely, and giant magnetoresistance 2 turns on.When electric pressure cooking saucepan is uncapped, magnet 1 separates with giant magnetoresistance 2, and giant magnetoresistance 2 disconnects.For existing
Electric pressure cooking saucepan folding type, magnet 1 is roughly divided into following three types with the installation site of giant magnetoresistance 2: the first, magnet 1 is pacified
Being loaded on pot cover, giant magnetoresistance 2 is arranged in pot.Uncap and in the action of closing lid, giant magnetoresistance 2 be in relative static conditions,
Magnet 1 is in relative motion state.2nd, magnet 1 is arranged in pot, and giant magnetoresistance 2 is arranged on pot cover.Uncap and closing lid
Action in, giant magnetoresistance 2 is in relative motion state, and magnet 1 is in relative static conditions.3rd, for electric pressure cooking saucepan folding
Lid is the mode of left rotation and right rotation, and magnet 1 and giant magnetoresistance 2 are simultaneously located on pot cover, when electric pressure cooking saucepan closing lid, magnet 1 with
Giant magnetoresistance 2 is close and giant magnetoresistance 2 turns on.When electric pressure cooking saucepan is uncapped, magnet 1 separates with giant magnetoresistance 2 and giant magnetoresistance 2
Disconnect.
When electric pressure cooking saucepan closing lid, magnet 1 is close with giant magnetoresistance 2, and giant magnetoresistance 2 is led under the magnetic fields of magnet 1
Logical, due to giant magnetoresistance 2 one end ground connection, the other end is connected with the pin of control chip U1.After giant magnetoresistance 2 conducting, control chip
The pin level of U1 becomes low level.According to low level signal, control chip U1 knows that the pot of electric pressure cooking saucepan and pot cover fasten
Put in place, i.e. electric pressure cooking saucepan closing lid is in ready state.When control chip U1 is simultaneously received heating signal, control chip is
Heating can be started to electric pressure cooking saucepan.When electric pressure cooking saucepan is uncapped, magnet 1 separates with giant magnetoresistance 2, and giant magnetoresistance 2 is departing from magnet
1 magnetic field producing simultaneously disconnects, and the pin voltage of control chip U1 is high level.Control chip U1 is by according to pin
High level signal is known that the pot of electric pressure cooking saucepan and pot cover do not fasten and is put in place, and control electric pressure cooking saucepan stops electric pressure cooking saucepan immediately and adds
Heat.
So, when electric pressure cooking saucepan is in heating, magnet does not causes giant magnetoresistance to produce induced signal, sensing close to giant magnetoresistance
Signal designation lid does not covers with pot, now, control chip will according to this actuated signal control electric pressure cooking saucepan not heating work,
Thus avoid water in long-time heating causes pot and dryout and burn, it is ensured that electric pressure cooking saucepan uses safety.
In the present embodiment, giant magnetoresistance 2 one end is connected with control chip 3 by current-limiting resistance R1, and the other end is grounded.This
Sample, current-limiting resistance R1 can prevent control chip 3 from being impacted by big electric current, it is ensured that chip secure.
As another kind of embodiment, as in figure 2 it is shown, for the pin voltage strengthening the control chip being connected with giant magnetoresistance 2,
Giant magnetoresistance connects current-limiting resistance one end and is also coupled to working power Vcc.And usual, giant magnetoresistance 2 is connected to by a divider resistance R2
Working power Vcc.
As another kind of embodiment, as it is shown on figure 3, do not cover the purpose of warning with pot in order to reach lid, control core
Piece 3 is also associated with an alarm 4.This alarm 4 can be sound alarm subsystem, and such as buzzer, loudspeaker etc. can also is that light crossing-signal,
Such as LED, or combined aural and visual alarm.
In the description of this specification, reference term " embodiment ", " some embodiments ", " an enforcement
The description of example ", " some embodiments ", " example ", " specific example " or " some examples " etc. means to combine this embodiment or example
The specific features, structure, material or the feature that describe are contained at least one embodiment or the example of the application.In this explanation
In book, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And, the concrete spy of description
Levy, structure, material or feature can combine in any one or more embodiment or example in an appropriate manner.
Above content is to combine the further description that the application is made by specific embodiment, it is impossible to assert this Shen
Being embodied as please is confined to these explanations.For the application person of an ordinary skill in the technical field, do not taking off
On the premise of the application conceives, some simple deduction or replace can also be made.
Claims (10)
1. the testing circuit for electric pressure cooking saucepan, it is characterised in that include: be arranged at the magnet in electric pressure cooking saucepan lid,
The giant magnetoresistance being arranged in pot, and electrically connect with described giant magnetoresistance with the actuated signal control voltage according to described giant magnetoresistance
The control chip of power pot duty.
2. testing circuit as claimed in claim 1, it is characterised in that described giant magnetoresistance one end is by current-limiting resistance and described control
Coremaking piece is connected, and the other end is grounded.
3. testing circuit as claimed in claim 2, it is characterised in that described giant magnetoresistance connects described current-limiting resistance one end and also connects
To working power.
4. testing circuit as claimed in claim 3, it is characterised in that described giant magnetoresistance is connected to described by a divider resistance
Working power.
5. testing circuit as claimed in claim 1, it is characterised in that described control chip is also associated with an alarm.
6. an electric pressure cooking saucepan, comprising: lid and pot, it is characterised in that described electric pressure cooking saucepan also includes a testing circuit, should
Testing circuit includes: be arranged at the magnet in described lid, the giant magnetoresistance being arranged in described pot, and with described giant magnetoresistance
Electrical connection is with the control chip of the actuated signal control electric pressure cooking saucepan duty according to described giant magnetoresistance.
7. electric pressure cooking saucepan as claimed in claim 6, it is characterised in that described giant magnetoresistance one end is by current-limiting resistance and described control
Coremaking piece is connected, and the other end is grounded.
8. electric pressure cooking saucepan as claimed in claim 7, it is characterised in that described giant magnetoresistance connects described current-limiting resistance one end and also connects
To working power.
9. electric pressure cooking saucepan as claimed in claim 8, it is characterised in that described giant magnetoresistance is connected to described by a divider resistance
Working power.
10. electric pressure cooking saucepan as claimed in claim 6, it is characterised in that described control chip is also associated with an alarm.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/091360 WO2016077980A1 (en) | 2014-11-18 | 2014-11-18 | Electric pressure cooker and detection circuit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205671926U true CN205671926U (en) | 2016-11-09 |
Family
ID=56013036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201490000335.7U Expired - Fee Related CN205671926U (en) | 2014-11-18 | 2014-11-18 | Electric pressure cooking saucepan and testing circuit thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205671926U (en) |
| WO (1) | WO2016077980A1 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108095526A (en) * | 2016-11-24 | 2018-06-01 | 佛山市顺德区美的电热电器制造有限公司 | The control method and cookware of cookware |
| US10390656B2 (en) | 2017-08-09 | 2019-08-27 | Sharkninja Operating Llc | Cooking device and components thereof |
| USD873602S1 (en) | 2018-08-09 | 2020-01-28 | Sharkninja Operating Llc | Lid part of a food preparation device |
| USD874211S1 (en) | 2018-08-09 | 2020-02-04 | Sharkninja Operating Llc | Food preparation device and parts thereof |
| USD903413S1 (en) | 2018-08-09 | 2020-12-01 | Sharkninja Operating Llc | Cooking basket |
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Families Citing this family (1)
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| CN113133665B (en) * | 2020-01-17 | 2022-10-04 | 九阳股份有限公司 | Dry burning prevention detection method for cooking utensil and cooking utensil |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100220905B1 (en) * | 1997-02-19 | 1999-09-15 | 정담 | Electric pressure rice cooker |
| JP5271448B2 (en) * | 2010-02-17 | 2013-08-21 | 三菱電機株式会社 | Magnetic position detector |
| CN201977551U (en) * | 2011-02-23 | 2011-09-21 | 格力电器（中山）小家电制造有限公司 | Cover-closing in-place switch of electric pressure cooker |
| CN203493409U (en) * | 2013-09-23 | 2014-03-26 | 美的集团股份有限公司 | Electric pressure cooker and cover opening and closing detection circuit of same |
| CN203609254U (en) * | 2013-11-01 | 2014-05-28 | 美的集团股份有限公司 | Cover-closing detection structure of electric pressure cooker and electric pressure cooker |
| CN203735989U (en) * | 2014-01-23 | 2014-07-30 | 精量电子（深圳）有限公司 | Rotation displacement measuring device and electric pressure cooker |
-
2014
- 2014-11-18 WO PCT/CN2014/091360 patent/WO2016077980A1/en active Application Filing
- 2014-11-18 CN CN201490000335.7U patent/CN205671926U/en not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2016077980A1 (en) | 2016-05-26 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161109 Termination date: 20171118 |