CN2083458U - Power saving electric cooking box - Google Patents
Power saving electric cooking box Download PDFInfo
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- CN2083458U CN2083458U CN 91201177 CN91201177U CN2083458U CN 2083458 U CN2083458 U CN 2083458U CN 91201177 CN91201177 CN 91201177 CN 91201177 U CN91201177 U CN 91201177U CN 2083458 U CN2083458 U CN 2083458U
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- heater
- electric oven
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Abstract
The utility model discloses a power saving electric oven, comprising four parts of the outer shell part of the electric oven, a controlling or regulating part, the core of the electric oven, and the lift part of a lower heater. The utility model is characterized in that a distance between an upper heater and the lower heater can be adjusted. Thus, materials to be heated can work in a best heating state which is a high heat efficiency state. Insulating bricks with porcelain inner faces are helpful to thermal insulation, insulation, hygiene, smoothness and cleanness, non-corrosion, easy scrubbing and metal sheet saving. An inner cavity can be divided into a baking chamber and a thermal insulation chamber. A small door is helpful to thermal insulation, reduction of heat dissipation and increase of rigidity of the door. Self-timing and temperature selection can be realized through electric control. The novel power saving electric oven has the advantages of electricity saving and time saving.
Description
The utility model belongs to the household electrical appliance technical field of food-baking aspect.But its technical characterictic also can be used on the existing roasting plant in fields such as industry, experimental study.
People's constantly entering society of living, work rhythm is being accelerated, and this will little by little influence and change food formation of people.Only several years, more tangible baked goods all are the food that is loved by the people as bread, dessert, roast chicken, barbecue etc.The change of growth in the living standard and traditional habit thereupon, people will be not content with the baked goods of buying back in the shop, wish to manufacture out in family.No matter therefore,, more need electric oven can come into family still from economy from life interest.
At present, the micro-wave oven of prior art has its special performance, but the food of its baking has limitation, and power consumption is also bigger, and simultaneously price is too high, and also about 1000 yuan, the import product are then wanted the hundreds of dollar as home made article.The electric oven of prior art, promptly or home made article also mostly is imitated import, not only power consumption is big but also price is also high, as home made article about more than 200 yuan, import about more than 500 yuan.
See above-mentioned reason, at China's national situation, especially power saving, save time, economize expense and consider as outstanding properties, having designed this utility model hereby is energy-saving electric oven, it not only has power conservation feature, also have multi-functionally, the insulation safety performance is good, health is bright and clean, feature and advantages such as metallic sheet material are easily cleaned and saved to burn into.
Below in conjunction with diagram, specify the design and the technical essential of this energy-saving electric oven:
Energy-saving electric oven is made up of four parts substantially: the electric oven shell; Control and adjusting; The electric oven core; Following heater liftable mechanism.
One, electric oven housing parts
Fig. 1 is the front elevation of the utility model electric oven housing parts.The electric oven housing parts is by four faces and former and later two face form right angle parallelepipeds on every side.The size of embodiment is long 320mm, wide 240mm, high 260mm.Four available sheet metal bending formings of face for increasing structural strength and rigidity, make good looking appearance on every side, can take to press ridge technology, make outward appearance not be simple platen surface.Rear board also adopts sheet metal, and pressing the ridge to handle increases rigidity.Around being fastened on the chromium plating screw behind the baking box core of packing into, on the baking box shell, when maintenance, can unload screw, take off rear board, and whole baking box core is taken out.Door of electric oven and electric oven control are installed on the front panel and regulate indication panel, oven door 3 is opened on the faceted front panel of 240mm * 260mm, this design makes a length of side in side seam crack for the shortest, the shop front is of a size of minimum, can not only make the good rigidly of door, and because good seal performance helps reducing heat loss.Being equipped with on the oven door and spying on glass 4, is pyroceram; On door handle 5, be equipped with and fasten the mechanism that door seals; Can insert the thermometer hole 6 of thermometer on the door in addition; Totally four of baking box legs 7, its simultaneously also is that the electric oven core is fastened on nut on the shell bottom surface.
Two, control and adjusting part
See that Fig. 2 is electric oven control and adjusting indication panel figure; this control is mounted on control and the indication panel 2 with the adjusting part; indication panel is to be glittering argenteous panel attractive in appearance with the making sheet of aluminium sheet drawing post-etching; it is positioned at the bottom of front panel; this design will all be the most reasonable, best to mechanical knob 8 and other electric elements; because temperature herein is low, be convenient to heat radiation with the protection electric elements.These adjusting knobs can be divided into mechanical adjustment and electrical equipment is regulated two big classes, and mechanical adjustment is the height that is used to adjust down heater, and when turning clockwise as knob 8, following heater rises; During the inhour rotation, following heater descends.Electrical equipment is regulated decision and whether is selected timer for use; Select the time of self-timing; Select different operating temperatures.These electric types are regulated and must be guaranteed good insulating, and are safe and reliable.There is indicator lamp to indicate in addition and send electricity or off-position.
Whether button 9 decisions use timer 10.Temperature is selected by piano key switch 11,12, and 13,14 finish.
During switch 11 work, all heater energisings, minimum about 600 watts of resistance peak power; During switch 12 work, following heater partial short circuit is not participated in heating, and all power is about 700 watts, wherein goes up about 400 watts of heaters.During switch 13 work, last heater partial short circuit is not participated in heating, and all power is about 700 watts, wherein descends about 400 watts of heaters.During switch 14 work, heater all has partial short circuit not participate in heating up and down, and all power is about 800 watts, and heater is each about 400 watts up and down.
Because can take to use timer and not use two kinds of operations of timer.Then operation sequence has two kinds of routes, when first kind of situation used timer, at first presses the button 9 left end, and second step forwarded timer knob 10 to the times selected position.The 3rd step was selected temperature selector switch 11,12,13,14, pressed a wherein selected key, and at this moment indicator lamp 15 is lighted, and illustrates that electric oven begins to send.When timer 10 was got back to 0, electric oven cut off the power supply automatically, and indicator lamp breath automatically goes out.Second kind of situation at first presses the button 9 right-hand member for not using timer, and second step is identical with the second above-mentioned step, the operator will see the table timing then, up to give fix time after, click again that the chosen temperature switch promptly cuts off the power supply in second step, simultaneously the indicator lamp breath goes out.Above-mentioned electric oven housing parts and control and adjusting part, firm durable for guaranteeing service behaviour, can paint, make it firm and certain hear resistance is arranged, monnolithic case is elegant in appearance simultaneously.
Three, electric oven core segment
See that Fig. 3 is an electric oven core front view, Fig. 4 is the side view of electric oven core.Adopt three blocks of porcelain insulating bricks that thickness is 6-7mm in the inboard of casing, wherein two length * wide is 200mm * 300mm, sees among the figure that 16 are depicted as side porcelain inner face insulating brick.The length of another piece * wide is the back of the body porcelain inner face insulating brick 17 of 200mm * 200mm, and two blocks of refractory brick that thickness is 20-25mm, place case interior following 18 and top 19 places to constitute the inner chamber (above-mentioned porcelain facing insulating brick and refractory brick are all general standard size product) of electric oven respectively.
Adopt porcelain inner face insulating brick to compare the obvious heat loss that reduced with the metallic plate inner face, improve the utilization rate of heat energy.Simultaneously porcelain inner face insulating brick is again splendid electrically insulating material, and very favourable household electrical appliance prevent accidents such as electric leakage, short circuit, and this in addition insulating brick is smooth, clean, health, burn into is not easily cleaned cleaning etc.Also saved the inwall metallic plate, so that valuable aluminium, stainless steel and other metal materials.
Following refractory brick is divided into baking space A and two parts of keeping warmth space B with the inner chamber of baking box.The outside of insulating brick and refractory brick surrounds with asbestos board 21, further plays heat-blocking action, and uses double-deck asbestos board in the above.Porcelain facing insulating brick 16,17 is installed on the steel plate groove member 23.With three steel belt for packages 22 the electric oven core is bundled into an integral body, six bolts 25 are used for the tensioning steel band.Whole baking box core is fixed on screw 24 on the base plate of shell 1, because the electric oven core segment is as a whole, the assembling when helping producing in batches also helps keeping in repair in the use, as long as unload rear board, just can take out whole electric oven core.
Four, descend heater liftable mechanism part
Fig. 5 is the front view of heater liftable mechanism under the electric oven, and Fig. 6 and Fig. 7 are respectively the vertical view and the side view of liftable mechanism.The liftable mechanism of following heater mainly is made up of 10 parts, and all the other are standard components such as a spot of screw, split pin, packing ring.These parts all will carry out chromium plating and zinc-plated processing.
When liftable mechanism knob 8 turned clockwise, the leading screw 25 that is fixed together with split pin 24 promptly rotated synchronously.And leading screw 9 half be right-hand thread, half is a left-hand thread.Right-hand thread nut 26 left lateral of coupling on leading screw then.Left-hand thread nut 27 right laterals of coupling on leading screw.Then rotating frame 28 turns clockwise, rotating frame 29 inhour rotations.Lifting frame 30 is upwards risen.The holder of lifting frame down refractory brick 18 and is risen synchronously.
During the 8 inhour rotations of liftable mechanism knob, then aforementioned activities is moved on the contrary, and lifting frame 30 is asking refractory brick 18 to descend synchronously.
Leading screw 25 is contained on left support abutment 31 and the right support abutment 32.Left and right sides bearing is installed on the base plate of shell 1, and whole elevating mechanism all is supported on the base plate of shell 1.
This time heater liftable mechanism is an important techniques feature of energy-saving electric oven, and it can make up and down the distance between the heater regulate arbitrarily, therefore can make up and down the position that material is in optimization that is heated between the heater, has improved the utilization rate of heat energy.
To sum up, the utility model patent baked good has obvious advantage, power saving, save time, following heater liftable and different material is all toasted under the situation of optimum, porcelain inner face insulating brick makes that heat loss is little, insulation, bright and clean health easy cleaning and Chang Jiubao hold cleaning can corrosion.Insulation makes the household electrical appliance safety and reliability.
Economy also is fairly obvious, as sending the electricity baking 780 gram bread among the embodiment 4 in 10 minutes, only need spend the electricity charge in 2.3 fens under the electric situation of 2 maos, 1 degree.
Specific embodiment of the utility model is as follows:
Embodiment 1:
Two heaters are under big distance and the small distance different situations relatively up and down, increase the electric energy (joule) of the required consumption of identical heat (joule) for the heated object in two heater centre positions up and down.
Implementation condition: use the model machine of same playscript with stage directions utility model patent electric oven to carry out.Room temperature, water temperature, vessel temp are 17 ℃.Having tested supply voltage before and after implementing is 218 volts, and the electric current that passes through is 3.2 peaces.
Performance and the data that record:
First kind of situation: two heaters are in the small distance situation up and down.The clear distance (as follows) of following heater upper surface and last heater lower surface is 54 millimeters.Clear distance (as follows) is 12 millimeters between the outer lower face of container iron pan and the following heater upper surface.Container iron pan outside dimension is long 260 millimeters, wide 180 millimeters, high 26 millimeters, and quality is 0.265 kilogram.Material is irony (as follows).
With graduated cylinder claim 17 ℃ of 600 milliliters water, pour in the container iron pan.Iron pan externally dispels the heat in the electric oven of poised state with the water use continuously of packing into, send electricity simultaneously and picks up counting.Be elevated to 100 ℃ until water temperature.Electric power feeding time is 10 minutes and 20 seconds.
Second kind of situation: two heaters are in big apart from situation up and down.The clear distance of two heaters is 144 millimeters up and down.The container iron pan is 60 millimeters with the clear distance of following heater.
Claim 600 milliliters 17 ℃ water, pour in the container iron pan with graduated cylinder.Iron pan externally dispels the heat in the electric oven of poised state with the water use continuously of packing into, send electricity simultaneously and picks up counting.Be elevated to 100 ℃ until water temperature.Electric power feeding time is 24 minutes and 10 seconds.
The third situation: two heaters are in big apart from situation equally up and down.The clear distance of two heaters is 144 millimeters up and down.The clear distance of container iron pan and following heater is with first kind of situation---small distance is 12 millimeters.
Claim 600 milliliters 17 ℃ water, pour in the container iron pan with graduated cylinder.Iron pan externally dispels the heat in the electric oven of poised state with the water use continuously of packing into, send electricity simultaneously and picks up counting.Be elevated to 100 ℃ until water temperature.Electric power feeding time is 15 minutes and 50 seconds.
Result and calculating:
First kind of situation adds hot water and the required heat of iron pan is:
Water m
1=0.6 kilogram; c
1=1 kilocalorie of/kilogram degree; t
1=17 ℃.
Iron pan m
2=0.265 kilogram; c
2=0.11 kilocalorie of/kilogram degree; t
2=17 ℃.
Water needs heat Q
1, iron pan needs heat Q
2, summation needs heat Q
HeatFor:
Q
Heat=Q
1+ Q
2=c
1m
1(t-t
1)+c
2m
2(t-t
2)
＝1×0.6×83＋0.11×0.265×83
=52.22(kilocalorie)=218.63 kilojoule
First kind of situation consumed power is:
Supply voltage V=218 lies prostrate, pacifies by electric current I=3.2, and then heater resistance is:
R=(V)/(I)=218/3.2=68 ohm
Consumed power Q
Electricity 1For:
Q
Electricity 1=I
2R τ
1(joule)
＝3.2
2×68×（60×10＋20）
＝10.24×68×620
=431718.4 joules
=431.72 kilojoules
Thermal efficiency φ
1For:
φ
1=(Q heat)/(Q electricity 1)=218.63/431.73=50.64%
It is identical that second kind of situation adds hot water and the required heat of iron pan and first kind of situation, also is Q
Heat=52.22(kilocalorie)=218.63 kilojoule.
Second kind of situation consumed power obviously increases, and this is that its result is as follows because heated object and the distance increase of calandria up and down make the thermaltransmission mode of convection current, conduction and radiation all become unfavorable institute extremely.
Consumed power Q
Electricity 2For:
Q
Electricity 2=3.2
2* 68 * (60 * 24+10)
＝10.24×68×1450
=1009.664 kilojoules
Thermal efficiency φ
2For:
φ
2=(Q
Heat)/(Q
Electricity 2)=218.63/1009.66=21.65%
It is identical that the third situation adds hot water and the required heat of iron pan and first, second kind situation, also is Q
Heat=52.22(kilocalorie)=218.63 kilojoule.
The third situation consumed power Q
Electricity 3For:
Q
Electricity 3=I
2R τ
5
＝3.2
2×68×（60×15＋50）
=661.50 kilojoules
φ
3=(Q
Heat)/(Q
Electricity 3)=218.63/661.74=33.05%
To sum up, first kind of situation be this patent attainable, make up and down that heater is adjusted to small distance, and be the distance that usually is suitable for during the user uses, this moment second, third kind of thermal efficiency ratio situation improve 1.5-2.3 doubly about.Second, third kind situation is the attainable user mode of suitable prior art.
Embodiment 2:
Several situations of baking bread.
Implementation condition: use model machine to carry out with the identical playscript with stage directions utility model patent electric oven of embodiment 1.Electric oven inside dimension: long 300 millimeters, wide 200 millimeters, high 200 millimeters.Container iron pan outside dimension is long 260 millimeters, wide 180 millimeters, high 26 millimeters, and quality is 0.265 kilogram, and material is an irony.
The baking process of bread is undertaken by the batching and the operation of " 400 kinds of delicious millet cake " the 259th page of " bread " joint fully." 400 kinds of delicious millet cake " book is that commissariat of rear-service department of PLA Air Force compiles, and June nineteen ninety, the 2nd edition Golden Shield publishing house published and distributed.
Every kind of situation is all toasted a bread that is slightly smaller than iron pan planar dimension 260 millimeters long, 180 mm wides (removing the iron pan skin depth), and roasting good bread height is 60 millimeters.Flour 500 restrains, adds the Bread Quality of making behind water, egg, sugar, milk, the wet goods is 0.78 kilogram.
First kind of situation: hot charging baking box, 80 millimeters of clear distances between heater up and down, iron pan is 12 millimeters apart from heater dead size down.Sending electricity to cut off the power supply for parking in stove after 10 minutes after 10 minutes comes out of the stove.Bread toasts well-done fully, and upper surface dyeing is also obviously darker partially than general merchandise bread color and luster.
Second kind of situation: the hot charging baking box, 144 millimeters of clear distances between heater up and down, iron pan is 60 millimeters apart from heater dead size down.Sending electricity to cut off the power supply for parking in stove after 10 minutes after 15 minutes comes out of the stove.Bread toasts well-done fully, and the upper surface color and luster is more shallow slightly than first kind of situation.
The third situation: the cold charge baking box, 80 millimeters of clear distances between heater up and down, iron pan is 12 millimeters apart from heater dead size down.Sending electricity to cut off the power supply for parking in stove after 10 minutes after 13 minutes comes out of the stove.Bread toasts well-done fully, and the upper surface color and luster is close with second kind of situation.
The 4th kind of situation: the cold charge baking box, 144 millimeters of clear distances between heater up and down, iron pan is 60 millimeters apart from heater dead size down.Sending electricity to cut off the power supply for parking in stove after 10 minutes after 18 minutes comes out of the stove.Bread toasts well-done fully, and the upper surface color and luster is close with second kind of situation.
These four kinds of situations draw as drawing a conclusion through repeatedly implementing: following heater plays an important role to toasting the well-done required time apart from face base distance.Play an important role apart from the color and luster of face base distance and go up heater to baking bread upper surface.This point is the outstanding advantage that the utility model patent can be accomplished.Usually be therefore to have saved electric energy.
So-called hot charging baking box is meant and once uses the shove charge and send the situation of electricity again of about 12 minutes of outage back before the control.
Description of drawings:
The energy-saving electric oven housing parts of Fig. 1 front elevation
1 shell, 5 door handles
2 controls and adjusting indication panel 6 thermometer holes
3 oven door, 7 baking box legs
4 heat resistant glasses, 8 mechanical knob
Energy-saving electric oven control of Fig. 2 and adjusting indication panel figure
The energy-saving electric oven core of Fig. 3 front view
16 side porcelain facing insulating bricks, 21 asbestos boards
17 back of the body porcelain facing insulating bricks, 22 steel bands
18 times refractory brick 23 screws
Refractory brick 24 split pins on 19
20 heaters, 25 leading screws
The energy-saving electric oven core of Fig. 4 side view
Heater liftable mechanism front view under the energy-saving electric oven of Fig. 5
26 right-hand thread nuts, 30 lifting frames
27 left-hand thread nuts, 31 left support abutments
28 rotating frames, 32 right support abutments
29 rotating frames
Heater liftable mechanism vertical view under the energy-saving electric oven of Fig. 6
33 right-hand threads, 36 shell front panels
34 left-hand threads, 37 refractory brick front ends
35 decoration panel surfaces
Heater liftable mechanism side view under the energy-saving electric oven of Fig. 7
The energy-saving electric oven shop front of Fig. 8 external form figure
Claims (4)
1, has the energy-saving electric oven of shell, case core, chamber door, heater and control and adjusting each several part, it is characterized in that heater has the liftable governor motion under it; The case core adopts porcelain inner face insulating brick, refractory brick and insulation material; Chamber door is opened on hexahedral facet.
2,, it is characterized in that the liftable mechanical adjustment mechanism that adjusts down the heater height has according to the described energy-saving electric oven of claim 1:
Screw thread and nut are arranged on 1., split pin, leading screw and the leading screw;
2., the screw thread on the leading screw is half left-hand thread of half right-hand thread, the right-hand thread nut left lateral of coupling on leading screw, and left-hand thread nut right lateral, or the two is reversed fully;
3., the adjusting knob of liftable mechanism can be clockwise or the inhour rotation, makes the holder of lifting frame down that heater rises or decline;
4., heater can be divided into oven cavity two transformable space A and B down.
3, according to the described energy-saving electric oven of claim 1, its case core is characterised in that:
1., the case core adopts porcelain inner face insulating brick, its thickness is 6-7mm, standard ceramic tile and the thickness of the length * wide 200 * 300mm of being or 200 * 200mm are 20-25mm refractory brick;
2., be lined with one deck insulation material between porcelain inner face insulating brick and metal shell;
3., the case core is as a whole.
4,, it is characterized in that chamber door opens on hexahedral facet and be provided with thermometer hole and the door handle of sealing mechanism is housed according to claim 1,2,3 described energy-saving electric ovens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91201177 CN2083458U (en) | 1991-01-25 | 1991-01-25 | Power saving electric cooking box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91201177 CN2083458U (en) | 1991-01-25 | 1991-01-25 | Power saving electric cooking box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2083458U true CN2083458U (en) | 1991-08-28 |
Family
ID=4911977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91201177 Withdrawn CN2083458U (en) | 1991-01-25 | 1991-01-25 | Power saving electric cooking box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2083458U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008141520A1 (en) * | 2007-05-21 | 2008-11-27 | Zhuohua Li | Multifunctional electronic oven |
| WO2012003787A1 (en) * | 2010-07-07 | 2012-01-12 | 漳州灿坤实业有限公司 | Novel oven |
| CN105286646A (en) * | 2015-11-05 | 2016-02-03 | 周林斌 | Baking tray capable of achieving side portion heating lifting |
| CN105496223A (en) * | 2015-11-26 | 2016-04-20 | 重庆昊江耐火材料有限责任公司 | Baking oven heat-insulation device |
| CN109864607A (en) * | 2019-03-07 | 2019-06-11 | 上海海尔众智坊创客空间管理有限公司 | Oven |
| CN112294129A (en) * | 2019-08-02 | 2021-02-02 | 青岛海尔智能技术研发有限公司 | Control method for oven and oven |
-
1991
- 1991-01-25 CN CN 91201177 patent/CN2083458U/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008141520A1 (en) * | 2007-05-21 | 2008-11-27 | Zhuohua Li | Multifunctional electronic oven |
| WO2012003787A1 (en) * | 2010-07-07 | 2012-01-12 | 漳州灿坤实业有限公司 | Novel oven |
| CN105286646A (en) * | 2015-11-05 | 2016-02-03 | 周林斌 | Baking tray capable of achieving side portion heating lifting |
| CN105496223A (en) * | 2015-11-26 | 2016-04-20 | 重庆昊江耐火材料有限责任公司 | Baking oven heat-insulation device |
| CN109864607A (en) * | 2019-03-07 | 2019-06-11 | 上海海尔众智坊创客空间管理有限公司 | Oven |
| CN112294129A (en) * | 2019-08-02 | 2021-02-02 | 青岛海尔智能技术研发有限公司 | Control method for oven and oven |
| CN112294129B (en) * | 2019-08-02 | 2021-12-28 | 青岛海尔智能技术研发有限公司 | Control method for oven and oven |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |