CN1094934A - Electric rice cooker heated by electric heating film and manufacturing method thereof - Google Patents
Electric rice cooker heated by electric heating film and manufacturing method thereof Download PDFInfo
- Publication number
- CN1094934A CN1094934A CN 93105600 CN93105600A CN1094934A CN 1094934 A CN1094934 A CN 1094934A CN 93105600 CN93105600 CN 93105600 CN 93105600 A CN93105600 A CN 93105600A CN 1094934 A CN1094934 A CN 1094934A
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- Prior art keywords
- inner tank
- heating film
- electric heating
- electric
- rice cooker
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- 238000005485 electric heating Methods 0.000 title claims description 28
- 235000007164 Oryza sativa Nutrition 0.000 title claims description 26
- 235000009566 rice Nutrition 0.000 title claims description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 240000007594 Oryza sativa Species 0.000 title 1
- 238000010438 heat treatment Methods 0.000 claims abstract description 53
- 239000002131 composite material Substances 0.000 claims abstract description 27
- 241000209094 Oryza Species 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 210000004907 gland Anatomy 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 238000009413 insulation Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 239000007888 film coating Substances 0.000 description 3
- 238000009501 film coating Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000009489 vacuum treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
An electric cooker heated by electrothermal film is composed of cover, internal container, casing, temp-controlling element, electrothermal element, control circuit and control switch, and features that the electrothermal element is coated on the external surface of internal container, a protecting cover is sleeved on the external surface of internal container, the both are connected at turned-over edge to form a composite internal container, the protecting cover has terminals for connecting positive and negative electrodes of electrothermal film and temp-controlling element, and the internal casing has socket for control circuit and terminals. Its advantages are high heat efficiency, saving electricity, low cost, no need of heating and insulating, simple process, high rate of finished products and long service life.
Description
The present invention relates to a kind of electric rice cooker and manufacture method thereof, particularly relate to a kind of electric rice cooker and manufacture method thereof that adopts Electric radiant Heating Film heating, it has heat efficiency height, economize on electricity, exempt from characteristics such as heat tracing and technology are simple.
In the prior art, electric rice cooker all is made up of pot cover, inner bag, shell, inner housing, temp-controlling element, tubular heater, heating board, control circuit and switch.Wherein, heating board adopts cast aluminium to make, and its inside has been cast into tubular heater, and after the energising, heater evenly generates heat electric hot plate, contacts water and the rice of heat energy being passed to splendid attire in the inner bag closely by electric hot plate and inner bag bottom again.Its weak point is that this electric hot plate of employing and tubular heater cost are higher, complex manufacturing technology, traditional tubular electrothermal element will be through tens road processing technologys, and the life-span is shorter, and heating board needs fully to contact with inner bag, heat conduction effectively, but prior art is difficult to guarantee heating board and inner bag and fits like a glove, so its heat efficiency is low, is lower than 60%, and need heat tracing, comparatively power consumption.
Purpose of the present invention is exactly in order to overcome weak point of the prior art, and a kind of raising heat efficiency is provided, conservation of power, and the while reduces cost, simplifies the electric rice cooker and the manufacture method thereof of the employing Electric radiant Heating Film heating of technology again.
Purpose of the present invention can realize by following technical measures: it is by pot cover, inner bag, shell, inner housing, temp-controlling element, electric heating element, control circuit and switch are formed, it is characterized in that improving heating board of the prior art and Tubiform Heater and be heated to be the Electric radiant Heating Film heating, be that electric heating element is an Electric radiant Heating Film, inner bag also is with an inner bag guard shield outward, the inner bag guard shield is similar to the inner bag shape and greater than the housing of inner bag, it is nested with inner bag and inlays at its flange place and connects, constitute composite inner liner, some binding posts also are installed on the inner bag guard shield, two binding posts and Electric radiant Heating Film wherein must be arranged just, negative the two poles of the earth link, other has the temp-controlling element on two binding posts and the inner bladder outer wall to link, and with the corresponding position of inner bag guard shield binding post the control circuit socket is housed in inner housing.When composite inner liner was put into shell, the plug on the inner bag guard shield can insert in the interior socket of inner housing, and Electric radiant Heating Film and control circuit are connected; After taking out composite inner liner, binding post and socket break away from.
Leave the space between inner bag of the present invention and the inner bag guard shield, form cavity.
Purpose of the present invention can also realize by following technical measures: leave the sealing gas port on the inner bag guard shield, sealed attachment is done in inner bag guard shield and inner bag flange connection place, space between inner bag and guard shield is vacuumized, make the cavity of the two become vacuum cavity, can make composite inner liner form heat-insulation layer preferably like this, up to exempting from the heat tracing effect, can also prevent Electric radiant Heating Film coating and air catalytic oxidation simultaneously, prolong the useful life of Electric radiant Heating Film.
Electric radiant Heating Film of the present invention can be coated on the inner bag outer bottom, or is coated on the whole outer wall of inner bag, perhaps is coated in inner bag outer bottom and its peripheral lower middle portion.
The present invention coats the Electric radiant Heating Film of different power outside the tank on the wall respectively, does heating and insulation is used.Can bottom inner bag, apply the higher Electric radiant Heating Film do heating usefulness of power, and apply lower-powered Electric radiant Heating Film do insulation usefulness on the sidewall outside the tank.
The present invention can also adopt self-closing electrical socket as the control circuit socket in the inner housing, and after taking out composite inner liner, the socket baffle plate is self-closing, makes socket be unlikely exposed, can prevent accidental shock.
The present invention can also add a fine motion safety switch and connect with control circuit under electric cooker lid.After pot cover closed, power supply could be connected, and when pot cover was opened, power supply disconnects, and was safer to guarantee electric rice cooker.
Inner bag of the present invention both can adopt metal material, can adopt glass or pottery or enamel material to make again.The inner bag guard shield then can adopt metal material or plastics to make.
Manufacture method of the present invention is to comprise that inner bag is shaped, shell is shaped, inner housing is shaped, installation and control circuit block on shell, control switch, assembling shell and inner housing are one, it is characterized in that applying one deck Electric radiant Heating Film on the wall outside the tank, and at inner bag bottom surface installation temp-controlling element, draw the circuit tie of Electric radiant Heating Film both positive and negative polarity and temp-controlling element respectively, other makes inner bag guard shield and wiring hole, on the inner bag guard shield, binding post is set, the tie of drawing on the inner bag is connected with binding post, inner bag is inserted in the inner bag guard shield, makes composite inner liner at inner bag and the fastening of inner bag guard shield rim flange; On housing, then circuit socket to be installed, need not to make and install tubular electrothermal element and heating plate.
Manufacture method of the present invention can also be made the sealing gas port on the inner bag guard shield, and adds sealing ring in inner bag and inner bag guard shield rim flange, and then fastening is sealed to composite inner liner; By the sealing gas port cavity in the composite inner liner body is vacuumized again, so that form heat-insulation layer preferably.
The present invention compared with prior art has many advantages:
1. electric heating element has adopted Electric radiant Heating Film, Electric radiant Heating Film is planar exothermic material, form thermal conductive surface to greatest extent with heated object, the thermal resistance of heat transfer is little, and heat conductivity is good, and self-temperature is very not high, do not have rubescent, red-hot phenomenon, it is little that the width of cloth is penetrated thermal loss, the electric heater made from Electric radiant Heating Film, the heat efficiency is very high, generally about 90%.And traditional electrothermal tube radiating surface is little, will lean on other object to conduct indirectly with heated object, in the electric heating transfer process, the heat energy that electric energy produced can not be passed to heated object soon, cause the heat on the electric heating element too concentrated, it is red-hot itself to become very soon, and energy loss is bigger, causes electric conversion efficiency low, by contrast, Electric radiant Heating Film work contact-making surface is big, and heat conduction is fast, than prior art economize on electricity 10%～40%.
2. Electric radiant Heating Film has auto-temperature-limiting character, and temperature rise own is not high, guarantees that Electric radiant Heating Film temperature everywhere is even, and composite inner liner can prevent Electric radiant Heating Film coating and outside air catalytic oxidation simultaneously, has prolonged useful life.
3. adopt the two-layer compound inner-tube structure, can avoid when taking out the inner bag cleaning, drawing the flower Electric radiant Heating Film easily, can also play electrostatic shielding simultaneously and close effect, prevent the heating element leakage current, because Electric radiant Heating Film is easy and metal shell forms capacitor, leakage current influences complete machine safety.
4. composite inner liner has the double thermal insulation effect, prevents cross-ventilation, can play the heat tracing effect of exempting from, and does vacuum treatment as the cavity in the composite inner liner, and heat insulating effect is better.
5. the technology that adopts Electric radiant Heating Film to make electric heating element wants much simple than prior art, traditional tubular electrothermal element will be through tens road processing technologys, and only need being coated in the inner bag outer surface, Electric radiant Heating Film gets final product, also need not manufacturing and tubular electrothermal element and electric hot plate and simple in structure are installed on housing, cost is lower.Add the insulation effect of composite inner liner, can economize the insulation material between decapsidate and the inner housing, simplified mounting process and complete machine weight, further saved cost.
The present invention is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the main pseudosection of an embodiment of the present invention;
Fig. 2 is circuit theory diagrams of the present invention;
Fig. 3 is the composite inner liner master pseudosection of an embodiment of the present invention;
Fig. 4 is the composite inner liner master pseudosection of the another kind of embodiment of the present invention.
The electric rice cooker of Electric radiant Heating Film heating illustrated in figures 1 and 2 is one of embodiments of the invention, it is by pot cover 10, inner bag 5, inner bag guard shield 6, shell 8, inner housing 4, temp-controlling element 14, electric heating element, control circuit 16 and control switch are formed, wherein electric heating element is an Electric radiant Heating Film coating 7, it is coated in the lower part of the outer surface of inner bag 5, comprise the bottom surface, inner bag 5 is enclosed within again in the inner bag guard shield 6, leave certain space between the two, guard shield 6 compresses the tight formation of flange pincers composite inner liner with inner bag 5 with sealing ring 9, have four holes on the bottom surface of inner bag guard shield, be separately installed with four wiring cylinders 15, wherein two binding posts are connected with temp-controlling element 14 thermistors that are attached to the inner bag bottom, in addition two binding posts then with Electric radiant Heating Film just, negative the two poles of the earth link to each other, be connected on electric rice cooker inner housing bottom surface be equipped with one with the corresponding self stick circuit's socket of composite inner liner binding post, four lines in the circuit socket connect the control circuit 16 that the computer control board is made respectively, can be by the temperature of computer control heating and the time of heating.The one fine motion safety switching mechanism of being made up of gland 1, compressing tablet 2 and safety switch 3 is installed in pot cover 10, when putting down pot cover 10, compressing tablet 2 can be moved to the left, again through spring Hui Li, homing is blocked the positioning boss 8a on the shell, and pot cover is locked, and just depress safety switch 3 on the other hand, make electric rice cooker energy operate as normal.When opening pot cover, compressing tablet 2 safety switch that slips away disconnects safety switch, and electric rice cooker quits work, can avoid like this uncapping stretch out one's hand in the time may form capacitor and produce slight electric shock and numb hand phenomenon, improve security performance.In addition, the seal cover 11 that just is pressed on inner bag 5 end faces is housed also in the pot cover, the steam in the inner bag 5 can be pooled in the water collector 13 through seal cover 11.In inner housing, also be provided with location hole, on the guard shield of composite inner liner, also be provided with locating piece accordingly so that composite inner liner when installing and the active socket in the inner housing align.When composite inner liner 5 is put into inner housing, aim at location hole, then can utilize own wt to depress, under the effect of binding post, since the guide effect of the socket baffle plate loxosis on the inner housing, baffle plate compression spring, the socket through hole is opened, binding post inserts in the socket, and inner bag 5 and control circuit 16 are connected, by the work of control circuit control electric rice cooker.
The another embodiment of the present invention (see figure 3) is to apply one deck Electric radiant Heating Film 7 in the inner bag bottom surface, stay in the guard shield bottom again and vacuumize sealing gas port 17, composite inner liner is done vacuum treatment, make the insulated space that forms a sealing between inner bag 5 and the inner bag guard shield 6, play insulation, heat-blocking action.Inner bag 5 and inner bag guard shield all adopt aluminum material to make.
The another embodiment of the present invention (see figure 4) is to apply one deck Electric radiant Heating Film 7 on the major part of the outer surface of inner bag 5, forms a big heating surface, to raise the efficiency.The inner bag guard shield adopts plastic material, and inner bag 5 adopts ceramic material to make.
An embodiment of the present invention is to apply the higher Electric radiant Heating Film 7 of power at the outer bottom of inner bag 5 and lateral wall bottom, and applies the lower Electric radiant Heating Film 7 of power on the lateral wall middle part of inner bag 5, and the former is used for heating, and the latter is used for insulation.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93105600 CN1094934A (en) | 1993-05-13 | 1993-05-13 | Electric rice cooker heated by electric heating film and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93105600 CN1094934A (en) | 1993-05-13 | 1993-05-13 | Electric rice cooker heated by electric heating film and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1094934A true CN1094934A (en) | 1994-11-16 |
Family
ID=4985830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93105600 Pending CN1094934A (en) | 1993-05-13 | 1993-05-13 | Electric rice cooker heated by electric heating film and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1094934A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101991347A (en) * | 2010-10-27 | 2011-03-30 | 浙江苏泊尔家电制造有限公司 | Electric heating film inner pot |
| CN103356052A (en) * | 2012-04-09 | 2013-10-23 | 日立空调·家用电器株式会社 | Electric cooker |
| CN103479206A (en) * | 2013-06-06 | 2014-01-01 | 王楚娥 | Double-container electric cooker |
| CN104223932A (en) * | 2013-06-17 | 2014-12-24 | 日立空调·家用电器株式会社 | Electric cooker |
| CN104720569A (en) * | 2015-04-13 | 2015-06-24 | 上海纯米电子科技有限公司 | Rice cooker vacuum pan container constant temperature device |
| CN105795888A (en) * | 2016-05-20 | 2016-07-27 | 佛山市顺德区美的电热电器制造有限公司 | Cookware and manufacturing method of cookware |
| CN105982558A (en) * | 2015-02-12 | 2016-10-05 | 佛山市顺德区美的电热电器制造有限公司 | Inner pot and cooking device |
| CN107485297A (en) * | 2017-08-18 | 2017-12-19 | 苏州海歌电器科技有限公司 | Vacuum thermal insulation inner container of electric cooker and its production technology |
| CN110973978A (en) * | 2019-12-23 | 2020-04-10 | 珠海格力电器股份有限公司 | Electric hot pot inner pot, electric hot pot and electric hot pot control method |
| CN111920290A (en) * | 2020-07-03 | 2020-11-13 | 宿州迅驰电子科技有限公司 | a rice cooker |
| CN111956080A (en) * | 2020-09-09 | 2020-11-20 | 河北慧术玻璃产业技术研究有限公司 | Glass liner assembly with traditional chassis heating mode and accurate temperature control function |
-
1993
- 1993-05-13 CN CN 93105600 patent/CN1094934A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101991347A (en) * | 2010-10-27 | 2011-03-30 | 浙江苏泊尔家电制造有限公司 | Electric heating film inner pot |
| CN103356052A (en) * | 2012-04-09 | 2013-10-23 | 日立空调·家用电器株式会社 | Electric cooker |
| CN103479206A (en) * | 2013-06-06 | 2014-01-01 | 王楚娥 | Double-container electric cooker |
| CN104223932A (en) * | 2013-06-17 | 2014-12-24 | 日立空调·家用电器株式会社 | Electric cooker |
| CN104223932B (en) * | 2013-06-17 | 2017-04-12 | 日立空调·家用电器株式会社 | Electric cooker |
| CN105982558A (en) * | 2015-02-12 | 2016-10-05 | 佛山市顺德区美的电热电器制造有限公司 | Inner pot and cooking device |
| CN104720569A (en) * | 2015-04-13 | 2015-06-24 | 上海纯米电子科技有限公司 | Rice cooker vacuum pan container constant temperature device |
| CN104720569B (en) * | 2015-04-13 | 2018-01-05 | 上海纯米电子科技有限公司 | A kind of rice cooker vacuum kettle courage thermostat |
| CN105795888A (en) * | 2016-05-20 | 2016-07-27 | 佛山市顺德区美的电热电器制造有限公司 | Cookware and manufacturing method of cookware |
| CN107485297A (en) * | 2017-08-18 | 2017-12-19 | 苏州海歌电器科技有限公司 | Vacuum thermal insulation inner container of electric cooker and its production technology |
| CN110973978A (en) * | 2019-12-23 | 2020-04-10 | 珠海格力电器股份有限公司 | Electric hot pot inner pot, electric hot pot and electric hot pot control method |
| CN111920290A (en) * | 2020-07-03 | 2020-11-13 | 宿州迅驰电子科技有限公司 | a rice cooker |
| CN111920290B (en) * | 2020-07-03 | 2021-12-17 | 丁道勇 | a rice cooker |
| CN111956080A (en) * | 2020-09-09 | 2020-11-20 | 河北慧术玻璃产业技术研究有限公司 | Glass liner assembly with traditional chassis heating mode and accurate temperature control function |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |