CN102519654A - Pressure detection device and electric pressure cooker adopting same - Google Patents
Pressure detection device and electric pressure cooker adopting same Download PDFInfo
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- CN102519654A CN102519654A CN201110395197XA CN201110395197A CN102519654A CN 102519654 A CN102519654 A CN 102519654A CN 201110395197X A CN201110395197X A CN 201110395197XA CN 201110395197 A CN201110395197 A CN 201110395197A CN 102519654 A CN102519654 A CN 102519654A
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- pressure
- support member
- detecting device
- pressure transducer
- cooker
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- 238000001514 detection method Methods 0.000 title abstract description 8
- 238000010411 cooking Methods 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 2
- 238000009530 blood pressure measurement Methods 0.000 abstract description 5
- 230000009246 food effect Effects 0.000 abstract description 2
- 238000010923 batch production Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to a pressure detection device and an electric pressure cooker adopting the same, wherein the pressure detection device comprises a fixing piece, a pressure sensor, a sealing piece and a supporting piece, the supporting piece is of a hollow structure, the pressure sensor is positioned on the hollow structure of the supporting piece and is in sealing connection with the supporting piece through the sealing piece, and the fixing piece is positioned above the pressure sensor; the electric pressure cooker comprises a cooker body, an outer cooker in the cooker body, an inner cooker arranged in the outer cooker, a heating element arranged below the inner cooker, a cooker cover assembly capable of being sealed with the inner cooker and a central control unit, wherein the cooker cover assembly is internally provided with the pressure detection device, and a pressure sensor in the pressure detection device is connected with the input end of the central control unit. The pressure detection assembly has the advantages of simple structure, low cost, high pressure measurement precision and easy batch production; the electric pressure cooker provided with the pressure detection device has the advantages of simple structure, more accurate pressure control and good cooking effect of food.
Description
Technical field
The present invention relates to pressure-detecting device, particularly a kind of electric pressure cooking saucepan that is applicable to the pressure-detecting device on the culinary cuisine utensil and adopts this device.
Background technology
To need the cooking apparatus of pressure measurement be to place in the cooking apparatus through thermistor temperature sensor to great majority on the market, after temperature in the measuring appliance, converts barometric information into, and coherent signal is passed to single-chip microcomputer realize pressure measurement and pressure control.Such pressure measurement scheme can cause data measured to have hysteresis quality owing to need during data determination through the temperature of associating to convert electric signal to from pressure again to the conversion of pressure; Simultaneously, the pressure in the cooking apparatus receives the influence of many factors such as temperature, quantity of food and the water yield easily; Only reflect the pressure size through temperature measuring, error is big, can not reflect the true pressure in the cooking apparatus in time, really; Results in pressure is controlled out of true, influences the culinary art effect of food.
Cooking apparatus institute working pressure sensor all is to be made by other pressure transducer production firm to be packaged into single component in the market, offers cooking apparatus manufacturing firm.But the pressure transducer of this structure is not easy on cooking apparatus, assemble; And owing to when the encapsulation pressure transducer, all use metal materials such as aluminum component, stainless steel, cost is high.
Summary of the invention
For overcoming the shortcoming of prior art, the present invention provides a kind of simple in structure, cost is low, the pressure measurement precision is high pressure-detecting device, is used for the pressure detection on the culinary cuisine utensil.
Another object of the present invention provides a kind of electric pressure cooking saucepan that adopts above-mentioned pressure-detecting device.
The technical scheme that realizes the object of the invention is: pressure-detecting device; Comprise fixture, pressure transducer, seal and support member; It is characterized in that said support member is a hollow structure, said pressure transducer is positioned on the hollow structure of support member; And be tightly connected through seal with support member, fixture is positioned at the pressure transducer top.
The hollow structure of above-mentioned support member is the steam channel of both ends open, and said pressure transducer is connected on the opening of steam channel one end of support member.
Above-mentioned fixing piece is fixedly connected with support member.
Above-mentioned pressure transducer is silicon resistance strain pressure transducer, resistance-strain pressure transducer, semiconductor strain pressure transducer.
For making things convenient for the use of this pressure-detecting device on electric pressure cooking saucepan to install, establish the below of above-mentioned support member
Holder is arranged, and support member and this holder seal through sealing block, and holder is fixedly connected with above-mentioned fixing piece.
A kind of electric pressure cooking saucepan; Comprise outer pot in the body of a pot body, pot, be located at interior pot in the outer pot, place in the following heating element in the bottom of a pan, the pot cover component and the central control unit that can seal with interior pot; It is characterized in that: be provided with above-mentioned pressure-detecting device in the said pot cover component, the pressure transducer in the said pressure-detecting device is connected with the input end of central control unit.
Include inner cap in the above-mentioned pot cover component, cover in said pressure-detecting device is fixed on.
Holder and inner cap in the above-mentioned pressure-detecting device are processed integrative-structure.
Technical conceive of the present invention is:
The pressure transducer precision of complete package is high on the market, cost is high, and its structure is too complicated simultaneously, is unfavorable for the installation of product on electric pressure cooking saucepan, the back is installed simultaneously occurs leaking the vapour phenomenon easily.The present invention is optimized improvement with the encapsulating structure that silicon hinders the equal pressure sensor; And that the packaging cost that makes pressure sensor assembly is reduced to is minimum; And induction pressure more directly, accurately; Effect is ideal, and pressure sensor assembly is assembled in the application product more easily, has improved the efficiency of assembling of product.
Therefore, the invention has the beneficial effects as follows:
1. pressure transducer of the present invention cooperates with other parts, is assembled into one and is convenient to assemble
Pressure detecting assembly can guarantee the fitting tight property and the reliability of pressure detecting assembly to have enlarged the application advantage of pressure transducer on cooking apparatus;
2. steam directly acts on pressure transducer in the pot of the present invention, makes pressure transducer produce stress
Change, directly vapor pressure changes in the impression pot, can not receive the interference of pot interior cooking food;
3. pressure-detecting device cost of the present invention is low, simple in structure, is easy to produce in batches;
4. the electric pressure cooker structure that pressure-detecting device of the present invention is installed is simple, and pressure control more
Accurately, the culinary art of food is effective.
Description of drawings
Fig. 1 is the structural representation of pressure-detecting device embodiment 1 of the present invention;
Fig. 2 is the structural representation of pressure-detecting device embodiment 2 of the present invention;
Fig. 3 is the explosive view of Fig. 2;
Fig. 4 is the embodiment partial structurtes synoptic diagram of electric pressure cooking saucepan of the present invention.
Embodiment
Below in conjunction with the accompanying drawing specific embodiments of the invention to being further described.
Embodiment 1:
As shown in Figure 1, the pressure-detecting device of present embodiment comprises fixture 1, pressure transducer 2, seal 3 and support member 4; It is characterized in that; Pressure transducer 2 adopts silicon resistance strain pressure transducer, and said support member 4 is a hollow structure, and said pressure transducer 2 is positioned on the hollow structure of support member 4; And be tightly connected through seal 3 with support member 4, fixture 1 is positioned at pressure transducer 2 tops and is fixedly connected with support member 4.
The hollow structure of above-mentioned support member 4 is the steam channel 11 of both ends open, and said pressure transducer 2 is connected on the opening of steam channel 11 1 ends of support member 4.
Embodiment 2:
Like Fig. 2, shown in Figure 3, the difference of present embodiment and embodiment 1 is the below of above-mentioned support member 4
Be provided with holder 6, support member 4 seals through sealing block 5 with this holder 6, and holder 6 is fixedly connected with above-mentioned fixing piece 1.
Embodiment 3:
As shown in Figure 4, present embodiment is the electric pressure cooking saucepan that pressure-detecting device of the present invention is installed.
Present embodiment comprises outer pot in the body of a pot body, pot, be located at interior pot 11 in the outer pot, place under the pot 11 heating element, can with the pot cover component and the central control unit of interior pot 11 sealings; It is characterized in that: be provided with above-mentioned pressure-detecting device in the said pot cover component, the pressure transducer 2 in the said pressure-detecting device is connected with the input end of central control unit.
Include inner cap 33, cover plate assembly 44 and latch components 22 in the above-mentioned pot cover component, said pressure-detecting device is fixed on the inner cap 33.
Above-mentioned pressure-detecting device comprises fixture 1, pressure transducer 2, seal 3, support member 4, sealing block 5 and holder 6; Pressure-detecting device is installed on the inner cap 33, and the pressure-detecting device top is coated with attachment cap 66, and attachment cap 66 is fastenedly connected with inner cap 33 and is integral; Between attachment cap 66 and pressure-detecting device, be provided with flexible member 55, flexible member 55 cover plate assemblies 44 flexibly connect through the support member in movable knurled nut 77 and the pressure-detecting device and form the hermetic cavity body with interior pot 11; It is as shown in Figure 4 that the back original state is installed.
When producing pressure in the electric pressure cooking saucepan pot; 44 moments of force cover plate assembly up produce displacement, and pressure-detecting device is same toward top offset, and flexible member 55 is compressed; This moment, latch components 22 received to top offset under the effect of cover plate assembly 44; Because the latch components of electric pressure cooking saucepan 22 is provided with intermeshing pot tooth with interior pot 11, when latch components 22 be moved to fasten in 11 pots of teeth of pot and when forming the rigidity connection, latch components 22 is no longer to top offset.Pressure transducer 2 in the pressure-detecting device receives the impact of pot interior steam at this moment; And the generation STRESS VARIATION; And the output electric signal is to the control system of electric pressure cooking saucepan central control unit; Control system is handled electric signal, is converted into the corresponding pressure value, realizes the pressure of electric pressure cooking saucepan is carried out continuously accurately control.
The above only is preferred embodiment of the present invention, is not that structure of the present invention is done any type of restriction.Every foundation technical spirit of the present invention is to the above any simple modification done of example of executing, and equivalent variations and modification all fall in protection scope of the present invention.
Claims (10)
1. pressure-detecting device; Comprise fixture (1), pressure transducer (2), seal (3) and support member (4); It is characterized in that said support member (4) is a hollow structure, said pressure transducer (2) is positioned on the hollow structure of support member (4); And be tightly connected through seal (3) with support member (4), fixture (1) is positioned at pressure transducer (2) top.
2. pressure-detecting device according to claim 1; It is characterized in that; The hollow structure of said support member (4) is the steam channel (11) of both ends open, and said pressure transducer (2) is connected on the opening of steam channel (11) one ends of support member (4).
3. pressure-detecting device according to claim 2 is characterized in that, said fixture (1) is fixedly connected with support member (4).
4. according to claim 1 or 2 or 3 described pressure-detecting devices, it is characterized in that described pressure transducer (2) is silicon resistance strain pressure transducer or resistance-strain pressure transducer or semiconductor strain pressure transducer.
5. pressure-detecting device according to claim 1 is characterized in that, said support member (4)
The below be provided with holder (6), support member (4) and holder (6) seal through sealing block (5), holder (6) is fixedly connected with said fixture (1).
6. electric pressure cooking saucepan; Comprise outer pot in the body of a pot body, pot, be located at interior pot (11) in the outer pot, place heating element under the interior pot (11), can with the pot cover component and the central control unit of interior pot (11) sealing; It is characterized in that: be provided with pressure-detecting device in the said pot cover component; Said pressure-detecting device comprises fixture (1), pressure transducer (2), seal (3) and support member (4); Said support member (4) is a hollow structure, and said pressure transducer (2) is positioned on the hollow structure of support member (4), and is tightly connected through seal (3) with support member (4); Fixture (1) is positioned at pressure transducer (2) top, and pressure transducer (2) is connected with the input end of central control unit.
7. pressure-detecting device according to claim 6; It is characterized in that; The hollow structure of said support member (4) is the steam channel (11) of both ends open, and said pressure transducer (2) is connected on the opening of steam channel (11) one ends of support member (4).
8. electric pressure cooking saucepan according to claim 7 is characterized in that, said support member (4) following
The side is provided with holder (6), and support member (4) seals through sealing block (5) with holder (6), and holder (6) is fixedly connected with said fixture (1).
9. electric pressure cooking saucepan according to claim 6 is characterized in that, includes inner cap (33) in the described pot cover component, and said pressure-detecting device is fixed on the inner cap (33).
10. electric pressure cooking saucepan according to claim 8 is characterized in that, the holder in the said pressure-detecting device (6) is processed integrative-structure with inner cap (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110395197XA CN102519654A (en) | 2011-12-02 | 2011-12-02 | Pressure detection device and electric pressure cooker adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110395197XA CN102519654A (en) | 2011-12-02 | 2011-12-02 | Pressure detection device and electric pressure cooker adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102519654A true CN102519654A (en) | 2012-06-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110395197XA Pending CN102519654A (en) | 2011-12-02 | 2011-12-02 | Pressure detection device and electric pressure cooker adopting same |
Country Status (1)
| Country | Link |
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| CN (1) | CN102519654A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968992A (en) * | 2013-01-24 | 2014-08-06 | 美的集团股份有限公司 | Pressure sensing device and pressure cooker with device |
| CN104515641A (en) * | 2013-09-27 | 2015-04-15 | 美的集团股份有限公司 | Pressure sensor for pressure cooking utensil, and pressure cooking utensil |
| CN104545429A (en) * | 2013-04-18 | 2015-04-29 | 张柯 | Domestic multi-diameter warning electric pressure cooker |
| CN106618172A (en) * | 2016-12-13 | 2017-05-10 | 美的集团股份有限公司 | Pressure sensor and cooking utensil with same |
| US11399651B2 (en) | 2016-12-13 | 2022-08-02 | Midea Group Co., Ltd. | Pressure detection device with improved control precision of pressure cooking appliance |
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| JP2000262402A (en) * | 1999-03-19 | 2000-09-26 | Zojirushi Corp | Pressure cooker |
| US6494088B2 (en) * | 1998-07-29 | 2002-12-17 | Siemens Aktiengesellschaft | Control device in a motor vehicle and a method of attaching a pressure sensor used by the control device |
| JP2003232693A (en) * | 2002-02-08 | 2003-08-22 | Denso Corp | Pressure sensor |
| JP2004309334A (en) * | 2003-04-08 | 2004-11-04 | Denso Corp | Pressure sensing device |
| CN201641588U (en) * | 2009-11-13 | 2010-11-24 | 李�泳 | Electric pressure cooker with double pressure-controlled function |
| CN202033147U (en) * | 2011-03-29 | 2011-11-09 | 中国船舶重工集团公司第七一五研究所 | Pressure detection module of electric pressure cooker based on MEMS (Micro Electro Mechanical System) technology |
| CN202393545U (en) * | 2011-12-02 | 2012-08-22 | 美的集团有限公司 | Pressure detection device and electric pressure cooker adopting same |
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2011
- 2011-12-02 CN CN201110395197XA patent/CN102519654A/en active Pending
Patent Citations (7)
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| US6494088B2 (en) * | 1998-07-29 | 2002-12-17 | Siemens Aktiengesellschaft | Control device in a motor vehicle and a method of attaching a pressure sensor used by the control device |
| JP2000262402A (en) * | 1999-03-19 | 2000-09-26 | Zojirushi Corp | Pressure cooker |
| JP2003232693A (en) * | 2002-02-08 | 2003-08-22 | Denso Corp | Pressure sensor |
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| CN202393545U (en) * | 2011-12-02 | 2012-08-22 | 美的集团有限公司 | Pressure detection device and electric pressure cooker adopting same |
Non-Patent Citations (1)
| Title |
|---|
| 陈德勇: "微机械谐振梁压力传感器研究", 《中国优秀博硕士学位论文全文数据库 (博士) 信息科技辑》, no. 2, 15 December 2002 (2002-12-15) * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968992A (en) * | 2013-01-24 | 2014-08-06 | 美的集团股份有限公司 | Pressure sensing device and pressure cooker with device |
| CN104545429A (en) * | 2013-04-18 | 2015-04-29 | 张柯 | Domestic multi-diameter warning electric pressure cooker |
| CN104515641A (en) * | 2013-09-27 | 2015-04-15 | 美的集团股份有限公司 | Pressure sensor for pressure cooking utensil, and pressure cooking utensil |
| CN104515641B (en) * | 2013-09-27 | 2019-07-02 | 美的集团股份有限公司 | Pressure sensor and pressure cooking appliance for pressure cooking appliance |
| CN106618172A (en) * | 2016-12-13 | 2017-05-10 | 美的集团股份有限公司 | Pressure sensor and cooking utensil with same |
| CN106618172B (en) * | 2016-12-13 | 2018-12-21 | 美的集团股份有限公司 | Pressure sensor and cooking apparatus with it |
| US11399651B2 (en) | 2016-12-13 | 2022-08-02 | Midea Group Co., Ltd. | Pressure detection device with improved control precision of pressure cooking appliance |
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Applicant after: MIDEA GROUP Co.,Ltd. Address before: 528311 Beijiao, Foshan, Shunde District, the town of Guangdong, the United States Avenue, No. 6 Applicant before: Midea Group |
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Free format text: CORRECT: APPLICANT; FROM: MEIDI GROUP CO. LTD. TO: MIDEA GROUP CO., LTD. |
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Application publication date: 20120627 |