CN105231901B - A kind of high temperature oven and its heater - Google Patents
A kind of high temperature oven and its heater Download PDFInfo
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- CN105231901B CN105231901B CN201510751306.5A CN201510751306A CN105231901B CN 105231901 B CN105231901 B CN 105231901B CN 201510751306 A CN201510751306 A CN 201510751306A CN 105231901 B CN105231901 B CN 105231901B
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Abstract
The present invention discloses a kind of high temperature oven and its heater.Wherein, the heater includes：It is arranged on the heating wire among the burner hearth of high temperature oven；Transformer, the vice-side winding connection heating wire of the transformer, the primary side winding of the transformer is provided with multiple taps, and the first end of wherein one end connection AC power of primary side winding；For the selecting switch that the second end of AC power is connected with one of tap of the vice-side winding of the transformer or disconnected with any one tap, the selecting switch is connected between multiple taps of the second end of AC power and the primary side winding of the transformer.The present invention has the advantages that simple in construction, safe and reliable.
Description
Technical field
The present invention relates to a kind of kitchen tools, more particularly, to a kind of high temperature oven and its heater.
Background technology
Heater element is electrothermal tube in existing electric heat barbecue stove, and electrothermal tube is by heating wire (or heater strip), metal tube
Wall (such as stainless steel) and the magnesia powder composition being filled between heating wire and metal pipe-wall.Magnesia powder is used for heating wire
Insulation between metal pipe-wall, with good heat conductivility.But, magnesia powder has very strong hygroscopicity again, therefore
When in use will be by damp-proof treatment (magnesia powder is modified or electrothermal tube sealing treatment)；And magnesia powder is according to the temperature used
Scope, can be divided into two kinds of low temperature powder and high temperature powder, and low-temperature oxidation magnesium powder can only be used below at 400 DEG C.
It is low that existing electric heat barbecue furnaceman makees poor reliability, security performance, is mainly manifested in following aspect：
1st, because the off quality or installation of magnesia powder in electrothermal tube is not in place, the use of electrothermal tube is directly affected
In the life-span, cause that the oven functional reliability using electrothermal tube is poor, the life-span is shorter.
2nd, present electrothermal tube is used for oven using low and high temperature magnesium powder, and it is low that electrothermal tube can bear the cold and hot temperature difference, such as exist
Food oil water droplet is to electric heating pipe surface during barbecue, and high-temperature electric heat pipe surface drastically cools to the cold, magnesium powder and electric heating surface metal material
Matter expansion factor of splashing is different, easily causes electrothermal tube surface fracture, if the metal pipe-wall of electrothermal tube send breakage cause magnesia powder by
The time of tide, magnesia powder turns into conductor, makes metal pipe-wall powered, meanwhile, in order to improve the heating power of oven, electrothermal tube two ends
Voltage it is higher, therefore the risk when electrothermal tube leaks electricity in the presence of electric shock, security performance is poor.
3rd, the maximum operating temperature of electrothermal tube is limited to the magnesia powder of filling, it is impossible to lift the fired temperature of oven
It is higher, influence the taste of food for roasting out.
The content of the invention
In order to overcome the defect of prior art, the present invention propose a kind of high temperature oven simple in construction, safe and reliable and
Its heater.
A kind of heater of high temperature oven, including：It is arranged on the heating wire among the burner hearth of high temperature oven；Transformation
Device T1, transformer T2 and transformer T3, transformer T1, transformer T2 and transformer T3 vice-side winding connect an electric heating respectively
Silk, the first end of transformer T1, transformer T2 and transformer T3 primary side winding is equipped with multiple taps, and transformer T1,
The second end of transformer T2 and transformer T3 primary side winding connects the C phases, A phases and B phases of three-phase electricity respectively；For by three-phase
A phases, B phases and the C phases of electricity are connected with transformer T1, transformer T2 and transformer T3 one of tap or with any one respectively
Selecting switch S1, selecting switch S2 and selecting switch S3 that individual tap is disconnected, selecting switch S1 are connected to three-phase electricity
A phases and transformer T1 primary side winding multiple taps between, selecting switch S2 is connected to the B phases and transformer of three-phase electricity
Between multiple taps of T2 primary side winding, selecting switch S3 is connected to the C phases of three-phase electricity and transformer T3 primary side winding
Multiple taps between.
Wherein, a wherein end for every heating wire is connected with a wherein end for another heating wire, and with Y capacitance with
The furnace wall plate of burner hearth is electrically connected with.
A kind of high temperature oven, including transformer T1, transformer T2 and transformer T3, burner hearth, pass through heating wire fix dress
Put the heating wire being fixed in burner hearth, the bell being connected with burner hearth, transformer T1, transformer T2 and transformer T3 vice-side winding
A heating wire is connected respectively, and the first end of transformer T1, transformer T2 and transformer T3 primary side winding is equipped with multiple
Tap, and the second end of transformer T1, transformer T2 and transformer T3 primary side winding connects the C phases of three-phase electricity, A phases respectively
And B phases；For the A phases, B phases and C phases of three-phase electricity to be taken out with one of them of transformer T1, transformer T2 and transformer T3 respectively
Selecting switch S1, selecting switch S2 and selecting switch S3 that head is connected or disconnected with any one tap, the selection are opened
Close S1 to be connected between multiple taps of the A phases of three-phase electricity and transformer T1 primary side winding, selecting switch S2 is connected to three
Mutually between multiple taps of the B phases of electricity and transformer T2 primary side winding, selecting switch S3 is connected to the C phases of three-phase electricity with becoming
Between multiple taps of depressor T3 primary side winding.
Wherein, electric heating wire fixing device includes：The guide rail in burner hearth is arranged at, guide rail is provided with some ceramic bases, pottery
The upper end of porcelain base is provided with the cannelure being slidably connected with guide rail provided with transverse groove, lower end；It is connected to the different positions of heating wire
Some support columns put, the end of support column is arranged among the transverse groove of ceramic base；Ceramics of the pressure on ceramic base
Briquetting；The cover plate on ceramic briquetting is arranged at, cover plate is fixedly linked with guide rail.
Wherein, provided with the potsherd being slidably connected on guide rail between two adjacent ceramic bases.
Wherein, two ends of guide rail are provided with limited block.
Wherein, two ends of the heating wire are welded with cold end, and the end of the cold end is arranged at the ceramic base
Transverse groove among.
Wherein, a kind of described high temperature oven also includes being arranged on the water pond in burner hearth and below heating wire.
Wherein, the furnace wall plate of the wherein side of burner hearth is provided with notch, and water pond is arranged among the burner hearth by notch.
Wherein, the bottom of water pond is provided with water out adapter, and water out adapter is also connected with a plug with mesopore, and plug is set
In the bottom of water pond, and water pond is also connected with water pipe, and water pipe connects a water supply connector with water inlet switch.
Compared with prior art, the present invention has the advantages that：
The present invention is simple in construction, safe and reliable, is powered using transformer to heating wire, transformer secondary winding and primary side around
Group security isolation, the operating voltage for making vice-side winding be loaded onto under load operating condition on heating wire is not higher than human-body safety electricity
36V is pressed, and by increasing the electric current of transformer primary side winding, so that the operating current of heating wire is flowed through in increase therewith, makes electric heating
Silk has the power and fired temperature higher than traditional electric heat barbecue stove.So, even if user is directly or by nonisulated object
The vice-side winding of mediate contact heating wire or transformer, there will not be the risk of electric shock, safe and reliable；In addition, the application is direct
Using heating wire rather than using traditional electrothermal tube, fired temperature is no longer limited by being filled in the magnesia powder in electrothermal tube,
So as to higher operating temperature, high temperature can allow the rapid dehydration coking of food roasting surface and keep tendering with a crispy crust,
Using the food taste roasted out of the present invention more preferably, and during hot operation be also not in traditional electrothermal tube because magnesia powder makes moist
And the potential safety hazard brought.
Brief description of the drawings
Fig. 1 is the decomposition texture schematic diagram of high temperature oven of the present invention；
Fig. 2 is the part-structure schematic diagram of heating wire and its fixing device；
Fig. 3 is part isometric structural representation of the high temperature oven of the present invention in addition to bell；
Fig. 4 is the dimensional structure diagram of high temperature oven of the present invention
Fig. 5 is the schematic diagram of the power supply circuit of heating wire.
Embodiment
With reference to shown in Fig. 1~Fig. 3, high temperature oven proposed by the present invention includes：Burner hearth 1, the burner hearth 1 can be by polylith furnace wall
Plate 11 is connected in sequence, and wherein the furnace wall plate 11 of side is provided with notch 12 and at least one knob 13；Power supply box 6；Pass through
Electric heating wire fixing device is fixed at least one heating wire 3 in burner hearth 1, and two ends of the heating wire 3 and power supply box 6 are electrical
It is connected；The water pond 2 that can be pulled out by notch 12 among burner hearth 1 and among burner hearth 1 is arranged on, the water pond 2 is arranged on electric heating
The lower section of silk 3；Bell 5 on burner hearth 1, bell 5 is provided with allowing the exposed barbecue hole 51 of heating wire 3.
Roast net is also provided with the barbecue hole 51 of bell 5, is easy to burning barbi being placed on progress on Roast net
Barbecue.Furthermore, on the one hand in order to maintain the high temperature in burner hearth 1, it is ensured that the heat in burner hearth 1 is tried one's best to be distributed by bell 5 less, separately
On the one hand, contact bell 5 is mainly during the operation of user's barbecue, in order to prevent bell 5 from scalding user, therefore the application is by bell 5
Whole or be set to the double-decker with heat-insulation chamber close to the part of heating wire 3, stuffed heat insulated cotton among the heat-insulation chamber.
Wherein, the side of water pond 2 is provided with the hand for being easy to that water pond 2 is inserted into burner hearth 1 from notch 12 or extracted out from burner hearth 1
Handle 21, the handle 21 exposes outside notch 12.The bottom of water pond 2 is provided with water out adapter 22, and the water out adapter 22 can connect a tool
There is the plug 23 of mesopore, the plug 23 is arranged on the bottom of water pond 2, and the upper surface of plug 23 is slightly higher compared with the bottom plate of water pond 2, lead to
Both height are crossed to determine the depth being filled with water in water pond 2.Water pond 2 is additionally provided with water pipe 26, and the water pipe 26 is intake by a band
Switch 25 water supply connector 24 be connected with water source, the water supply connector 24 be fixed therein on a furnace wall plate 11 with water source phase
Even.When high temperature oven carries out high temperature barbecue, open water inlet switch 25, discharged water from water pipe 26 to water pond 2, oily juice, roast juice,
Barbecue disintegrating slag etc. falls to water pond 2, so as to prevent from directly dropping in the production during barbecue because of high temperature of the bottom of burner hearth 1
Raw extra oil smoke even occurs burning and causes naked light；Further, since plug 23 has certain height, and the middle part of plug 23 has
There is mesopore, therefore, oily juice, roast juice etc. are fallen to after water pond 2, the directly mesopore through plug 23 such as oily juice, roast juice is from water outlet
Joint 22 is discharged, and roasts the bottom that the material more heavier than water such as disintegrating slag is then deposited in water pond 2, can by by water pond 2 from burner hearth 1
Barbecue disintegrating slag etc. is outwelled after extraction, so as to prevent the materials such as barbecue disintegrating slag from blocking water out adapter 22.
Wherein, two ends of every heating wire 3 are welded with cold end 31 (such as, two ends of heating wire 3 weld one section
0.5mm pure nickel wire is used as cold end 31), the connection sheet 32 being connected with power line is easy in the end welding of the cold end 31；In order that
Heating wire 3 reduces deformation as far as possible in use, and some L-shaped support columns 33 are welded with heating wire 3.
The application fixes cold end 31 and support column 33, that is, reaches the purpose being fixed on heating wire 3 among burner hearth 1.Electricity
Heated filament fixing device includes：Guide rail 41 is fixed between the wherein two furnace wall plates 11 of burner hearth 1；Provided with some on guide rail 41
Ceramic base 43, the upper end of the ceramic base 43 is provided with the cannelure being connected with guide rail 41, the pottery provided with transverse groove, lower end
Porcelain base 43 is connected on guide rail 41 by cannelure and can slided on guide rail 41, and each cold end 31 and each support
Post 33 is respectively arranged among the transverse groove of one of ceramic base 43；One ceramics is set respectively on each ceramic base 43
Briquetting 44, the lower surface and the upper surface of ceramic base 43 of the ceramic briquetting are connected, by ceramic briquetting 44 by cold end 31
And support column 33 is spacing is fixed among the transverse groove of ceramic base 43；It is arranged at the cover plate 42 on ceramic briquetting 44, the cover plate
42 are fixedly linked by stud with guide rail 41, so that ceramic briquetting 44 and ceramic base 43 are fixed together, and then make cold end
31 and support column 33 be fixed among the transverse groove of ceramic base 43.
On the diverse location that heating wire 3 is fixedly connected on due to support column 33, the lateral separation between adjacent supports post 33
Might not be equal, for the ease of all ends of support column 33 are fixed, therefore provided with slip between adjacent ceramic base 43
The potsherd 45 on guide rail 41 is connected to, by setting the quantity of the potsherd 45 between adjacent ceramic base 43, so as to adjust
Lateral separation between position or connected ceramic base 43 of the ceramic base 43 on guide rail 41, is easy in manufacture high temperature oven
The quick assemblies of Shi Jinhang.In addition, in order to prevent the contact furnace wallboard 11 of heating wire 3 as far as possible, therefore the two of guide rail 41
End is provided with limited block 46, makes to get close to furnace wall plate 11 so as to which ceramic base 43 can not be slided, it is ensured that heating wire 3 will not contact furnace
Wallboard 11.
Such as, spacing of the diameter of heating wire 3 between 2~20mm, adjacent heating wire 3 is 5~60mm, heating wire 3
U-shaped is bent to, a support column 33 is welded in each U-shaped bending place, adjusting each ceramic base 43 by potsherd 45 is leading
Position on rail 41, it is possible to fix the end of each support column 33.
Wherein, the power supply circuit of heating wire 3 is as shown in figure 5, the power supply circuit of heating wire 3 includes：Transformer, the transformer
Vice-side winding concatenation heating wire 3, the primary side winding of the transformer is provided with multiple taps；The first end of AC power is connected to
Wherein one end of the primary side winding of the transformer, and multiple taps pass through the second end phase of selecting switch and AC power respectively
Even.And selecting switch is connected with knob 13, switched off by the control selections of knob 13 or by the second end of AC power with becoming
One of tap of the primary side winding of depressor is connected.
Due to using three-phase electricity as AC power, therefore being further illustrated by taking three-phase electricity as an example more than oven.Three-phase electricity
It is each that transformer T1, transformer T2 and change are connected by a selecting switch S1, selecting switch S2 and selecting switch S3 respectively
Depressor T3 primary side winding, and transformer T1, transformer T2 and transformer T3 vice-side winding connect heating wire 3 respectively.Specifically
For, transformer T1, transformer T2 and transformer T3 primary side winding and three-phase electricity take delta connection, transformer T1, change
The first end of depressor T2 and transformer T3 primary side winding is provided with multiple taps on diverse location, and transformer T1,
Two ends of transformer T2 and transformer T3 vice-side winding pass through the connection sheet 32 of 3 liang of ends of wire and a heating wire respectively
It is connected.The input of selecting switch S1 input, selecting switch S2 input and selecting switch S3 distinguishes the A of three-phase electricity
Phase, B phases are connected with C phases, and selecting switch S1, selecting switch S2 and selecting switch S3 are respectively provided with multiple output ends, each output end
It is connected respectively with one of tap in the first end of transformer T1, transformer T2 and transformer T3 primary side winding, and becomes
The second end of depressor T1, transformer T2 and transformer T3 primary side winding connects the C phases, A phases and B phases of three-phase electricity respectively.Choosing
Select switch S1, selecting switch S2 and selecting switch S3 to be controlled by a knob 13 respectively, during turning knob 13, make corresponding
The input in disconnection or the selecting switch of selecting switch is connected with one of output end, so as to adjust the work of heating wire 3
Make voltage.
Wherein, transformer T1, transformer T2 and transformer T3 are arranged among above-mentioned power supply box 6.In addition, to prevent electricity
The surface of heated filament 3 produces electrostatic, and a wherein end for a heating wire 3 is connected with a wherein end for another heating wire 3,
And furnace wall plate 11 (i.e. the shell of oven) is accessed with Y capacitance.
According to transformer characteristic, the application makes pair by setting the primary side winding number of turn and the vice-side winding number of turn of transformer
The operating voltage that side winding is loaded onto under load operating condition on heating wire 3 is not higher than human safety voltage 36V, and by increasing
The electric current of big transformer primary side winding, so that the operating current of heating wire 3 is flowed through in increase therewith, makes heating wire 3 have than tradition
Electric heat barbecue stove higher power and fired temperature.So, even if user is directly or by nonisulated object mediate contact electric heating
The vice-side winding of silk 3 or transformer, there will not be the risk of electric shock, safe and reliable；In addition, the application directly uses heating wire 3
Rather than traditional electrothermal tube is used, fired temperature is no longer limited by being filled in the magnesia powder in electrothermal tube, so as to have
Have higher operating temperature (such as 800-1300 DEG C), and be also not in traditional electrothermal tube during hot operation because magnesia powder by
Tide and the potential safety hazard brought.
Furthermore, the outer surface of heating wire 3 is coated with anti-stick coating, is reduced and is dropped on heating wire 3 by anti-stick coating
The adhesion of oily juice, roast juice etc., allows oily juice, roast juice etc. directly to slide into the water of water pond 2, and then avoid the production of oil smoke
It is raw.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of heater of high temperature oven, it is characterised in that the heater includes：It is arranged on the stove of high temperature oven
Heating wire among thorax；Transformer T1, transformer T2 and transformer T3, transformer T1, transformer T2 and transformer T3 secondary
Winding connects a heating wire respectively, and the first end of transformer T1, transformer T2 and transformer T3 primary side winding is equipped with
Multiple taps, and the second end of transformer T1, transformer T2 and transformer T3 primary side winding connects the C of three-phase electricity respectively
Phase, A phases and B phases；For by the A phases, B phases and C phases of three-phase electricity respectively with transformer T1, transformer T2 and transformer T3 wherein
Selecting switch S1, selecting switch S2 and selecting switch S3 that one tap is connected or disconnected with any one tap, should
Selecting switch S1 is connected between multiple taps of the A phases of three-phase electricity and transformer T1 primary side winding, and selecting switch S2 connects
Between the multiple taps for being connected on the B phases of three-phase electricity and transformer T2 primary side winding, selecting switch S3 is connected to the C of three-phase electricity
Between multiple taps of phase and transformer T3 primary side winding.
2. the heater of a kind of high temperature oven according to claim 1, it is characterised in that every heating wire is wherein
One end is connected with a wherein end for another heating wire, and is electrically connected with the furnace wall plate of Y capacitance and burner hearth.
3. a kind of high temperature oven, it is characterised in that including transformer T1, transformer T2 and transformer T3, burner hearth, pass through electric heating
Heating wire that wire fixing device is fixed in burner hearth, the bell being connected with burner hearth, transformer T1, transformer T2 and transformer T3's
Vice-side winding connects a heating wire respectively, and the first end of transformer T1, transformer T2 and transformer T3 primary side winding is equal
Second end provided with multiple taps, and transformer T1, transformer T2 and transformer T3 primary side winding connects three-phase electricity respectively
C phases, A phases and B phases；For by the A phases, B phases and C phases of three-phase electricity respectively with transformer T1, transformer T2 and transformer T3
Selecting switch S1, selecting switch S2 and selecting switch that one of tap is connected or disconnected with any one tap
S3, selecting switch S1 is connected between multiple taps of the A phases of three-phase electricity and transformer T1 primary side winding, the selecting switch
S2 is connected between multiple taps of the B phases of three-phase electricity and transformer T2 primary side winding, and selecting switch S3 is connected to three-phase
Between multiple taps of the C phases of electricity and transformer T3 primary side winding.
4. a kind of high temperature oven according to claim 3, it is characterised in that electric heating wire fixing device includes：It is arranged at
Guide rail in burner hearth, guide rail is provided with some ceramic bases, and the upper end of ceramic base is provided with leading provided with transverse groove, lower end
The cannelure that rail is slidably connected；Some support columns of heating wire diverse location are connected to, the end of support column is arranged on ceramic bottom
Among the transverse groove of seat；Ceramic briquetting of the pressure on ceramic base；The cover plate on ceramic briquetting is arranged at, cover plate is consolidated with guide rail
It is fixed to be connected.
5. a kind of high temperature oven according to claim 4, it is characterised in that be provided between two adjacent ceramic bases
It is slidably connected at the potsherd on guide rail.
6. a kind of high temperature oven according to claim 4, it is characterised in that a wherein end for every heating wire with it is another
A wherein end for a piece heating wire is connected, and is electrically connected with the furnace wall plate of Y capacitance and burner hearth.
7. a kind of high temperature oven according to claim 4, it is characterised in that two ends of the heating wire are welded with
Cold end, the end of the cold end is arranged among the transverse groove of the ceramic base.
8. a kind of high temperature oven according to claim 3, it is characterised in that also including being arranged in burner hearth and positioned at electricity
Water pond below heated filament.
9. a kind of high temperature oven according to claim 8, it is characterised in that set on the furnace wall plate of the wherein side of burner hearth
There is notch, water pond is arranged among the burner hearth by notch.
10. a kind of high temperature oven according to claim 8, it is characterised in that the bottom of water pond is provided with water out adapter, goes out
Water swivel is also connected with a plug with mesopore, and plug is arranged on the bottom of water pond, and water pond is also connected with water pipe, and water pipe connects
Connect a water supply connector with water inlet switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510751306.5A CN105231901B (en) | 2015-11-04 | 2015-11-04 | A kind of high temperature oven and its heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510751306.5A CN105231901B (en) | 2015-11-04 | 2015-11-04 | A kind of high temperature oven and its heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105231901A CN105231901A (en) | 2016-01-13 |
| CN105231901B true CN105231901B (en) | 2017-10-03 |
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ID=55029947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510751306.5A Active CN105231901B (en) | 2015-11-04 | 2015-11-04 | A kind of high temperature oven and its heater |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2047915U (en) * | 1987-12-01 | 1989-11-22 | 孟昭政 | Safty low voltage electrothermal sheet |
| JP2596277B2 (en) * | 1991-12-25 | 1997-04-02 | 三菱電機株式会社 | Cooker |
| DE19813550A1 (en) * | 1998-03-27 | 1999-09-30 | Ego Elektro Geraetebau Gmbh | Method for operating an electric heating device |
| CN201182522Y (en) * | 2008-02-15 | 2009-01-21 | 徐雅国 | Safe type electrothermic smoldering stove |
| CN101562912A (en) * | 2008-04-16 | 2009-10-21 | 徐雅国 | Safety type home-use electric heating appliance |
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2015
- 2015-11-04 CN CN201510751306.5A patent/CN105231901B/en active Active
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