CN107535022A - Heating coil and the cooker for possessing the heating coil - Google Patents
Heating coil and the cooker for possessing the heating coil Download PDFInfo
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- CN107535022A CN107535022A CN201680024450.1A CN201680024450A CN107535022A CN 107535022 A CN107535022 A CN 107535022A CN 201680024450 A CN201680024450 A CN 201680024450A CN 107535022 A CN107535022 A CN 107535022A
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- Prior art keywords
- conductor
- winding
- heating coil
- cored wire
- insulating barrier
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Induction Heating Cooking Devices (AREA)
- General Induction Heating (AREA)
- Cookers (AREA)
Abstract
Heating coil possesses winding (2).Winding (2) has the first cored wire (3) and the second cored wire (6).First cored wire (3) includes the first elongated conductor and the first insulating barrier being arranged on the surface of the first conductor.Second cored wire (6) includes：The second elongated conductor；Second insulating barrier, it is arranged on the surface of the second conductor；And fused layers, it is arranged on the surface of the second insulating barrier.According to the manner, the broken string of the winding (2) in the manufacturing process of heating coil can be prevented.According to the heating coil of the manner, using the teaching of the invention it is possible to provide the high cooker of reliability.
Description
Technical field
This disclosure relates to it is used for the heating coil of induction heating cooking instrument and possesses the cooker of the heating coil.
Background technology
In the past, in the field of induction heating cooking instrument, in order to reduce the loss of the weight of heating coil and heating coil,
It is proposed has a kind of heating coil, and it uses the line also on the insulating barrier on surface for being arranged at the conductors such as copper cash with fused layers
Material (for example, referring to patent document 1).
Fig. 6 A are the sectional views of the wire rod of the conventional heating coil 200 described in patent document 1.Fig. 6 B are heating coils
200 sectional view.
As shown in Fig. 6 A, Fig. 6 B, heating coil 200 is made up of wire rod 201.Wire rod 201 include elongated conductor 202, absolutely
Edge layer 203 and fused layers 204.Elongated conductor 202 is made up of copper cash etc..Insulating barrier 203 is arranged on the surface of conductor 202
On.Fused layers 204 are arranged on the surface of insulating barrier 203.
As shown in Figure 6B, more wire rods 201 are twisted together and form assembly line 205.Assembly line 205 is being rolled into vortex shape
Afterwards, after assembly line 205 is fused using fused layers 204, then discoideus heating coil 200 is formed.
In the field of high-frequency wire, proposition has for suppressing AC resistance, heating and the electric wire of consumption electric power.The electric wire has
Have：Elongated center conductor；Clad, it is arranged on the surface of center conductor；And insulating barrier, it is arranged on clad
Surface.The clad metal different by the metal from forming center conductor is formed (for example, referring to patent document 2).
Fig. 7 is the sectional view for the conventional high-frequency wire 300 that patent document 2 is recorded.As shown in fig. 7, high-frequency wire 300 wraps
Include center conductor 301, clad 303 and intermetallic compounds layer 302.
Center conductor 301 is made up of aluminum or aluminum alloy.Clad 303 is copper, and it is arranged on the table of center conductor 301
Face.Intermetallic compounds layer 302 is formed as composition from center conductor 301 to cladding between center conductor 301 and clad 303
Layer 303 little by little changes.The specific insulation of intermetallic compounds layer 302 is more than clad 303.
Present inventors studied using wire rod of the above-mentioned conventional high-frequency wire as the above-mentioned conventional heating coil of composition
Conductor to suppress the heating of heating coil and consumption electric power.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Application 59-086188 publications
Patent document 2：No. 5266340 publications of Japanese Patent Publication No.
The content of the invention
The invention problem to be solved
But if only making above-mentioned conventional high-frequency wire be combined with forming the wire rod of above-mentioned conventional heating coil, from
It is inadequate for the angle of the reliability of heating coil.
If for example, make the conventional heating coil that the conventional high-frequency wire that patent document 2 is recorded is recorded with patent document 1
Combination, then forming the wire rod of the assembly line of heating coil includes center conductor, clad, insulating barrier and fused layers.Center conductor
It is made up of aluminum or aluminum alloy.Clad is made of copper, and it is arranged on the surface of center conductor.Insulating barrier is arranged on clad
Surface.Fused layers are arranged on the surface of insulating barrier.
More above-mentioned wire rods are twisted together and made the assembly line fusion for being rolled into vortex shape and form heating coil.In the structure
In, because the different metal of the metal using the center conductor from forming wire rod forms the clad of wire rod, therefore, in wire rod
Center conductor is different from the property such as ductility in the clad of wire rod.Generally, on ductility, because aluminium is inferior to copper, therefore, close
In ductility, the center conductor of wire rod be inferior to wire rod by film layer.
On the other hand, if all wire rods for forming assembly line have fused layers, assembly line can become really up to the mark.Therefore, root
According to above-mentioned assembly line, it is possible to which heating coil breaks in manufacturing process.
The disclosure solve the problems, such as it is above-mentioned conventional, even if conductor includes the metal that ductility is inferior to copper, in manufacturing process
In can also form the heating coil of no broken string.It is intended that by possessing the heating coil, so as to provide, reliability is high to boil
Meal device.
In order to solve the above problems, a mode of the disclosure is the heating coil for possessing winding, and the winding has the
One cored wire and the second cored wire.First cored wire includes the first elongated conductor and is arranged on first insulation on the surface of the first conductor
Layer.Second cored wire includes：The second elongated conductor；Second insulating barrier, it is arranged on the surface of the second conductor；And fused layers,
It is arranged on the surface of the second insulating barrier.
The another way of the disclosure is the cooker for possessing above-mentioned heating coil.
According to the heating coil of aforesaid way, the broken string of the winding in manufacturing process can be prevented.Due to possessing above-mentioned add
Heat coil, therefore, it is possible to provide reliability high cooker.
Brief description of the drawings
Fig. 1 is the overall perspective view of the outward appearance for the heating coil for showing embodiment of the present disclosure.
Fig. 2 is the stereogram of the winding of the heating coil of embodiment.
Fig. 3 A are the sectional views of the first cored wire of the winding for the heating coil for forming embodiment.
Fig. 3 B are the sectional views of the second cored wire of the winding for the heating coil for forming embodiment.
Fig. 4 A are to show the winding merely with the heating coil of the second cored wire composition embodiment and make the shape of winding deformation
The figure of state.
Fig. 4 B are to show the winding of the heating coil using the first cored wire and the second cored wire composition embodiment and make winding
The figure of the state of deformation.
Fig. 5 is the sectional view of the cooker of embodiment of the present disclosure.
Fig. 6 A are the sectional views of the wire rod of conventional heating coil.
Fig. 6 B are the sectional views of conventional heating coil.
Fig. 7 is the sectional view of conventional high-frequency wire.
Embodiment
The first method of the disclosure is the heating coil for possessing winding, and the winding has the first cored wire and the second cored wire.
First cored wire includes the first elongated conductor and the first insulating barrier being arranged on the surface of the first conductor.Second cored wire bag
Include：The second elongated conductor；Second insulating barrier, it is arranged on the surface of the second conductor；And fused layers, it is arranged on
On the surface of two insulating barriers.According to the manner, the broken string of the winding in the manufacturing process of heating coil can be prevented.
According to the second method of the disclosure, in first method, the radical of the first cored wire is the radical and of the first cored wire
Total 30%~50% of the radical of two cored wires.According to the manner, the winding in the manufacturing process of heating coil can be prevented
Broken string.
According to the Third Way of the disclosure, in first or second method, the first conductor includes：First center conductor, its
It is arranged on the center of the first conductor；With the first clad, it is arranged on the surface of the first center conductor, and described first leads
Body has 0.1~0.3mm diameter.First clad has the volume resistance less than the first center conductor, and is led with first
10~20% sectional area of the sectional area of body.
According to the manner, the resistance of the heating coil in the case where flowing through high frequency electric can be reduced, as a result, energy
Enough reduce the loss at heating coil.
According to the fourth way of the disclosure, in the either type in first to Third Way, the second conductor includes：Second
Center conductor, it is arranged on the center of the second conductor；With the second clad, it is arranged on the surface of the second center conductor
On, second conductor has 0.1~0.3mm diameter.Second clad has the volume resistance less than the second center conductor,
And 10~20% sectional area of the sectional area with the second conductor.
According to the manner, the resistance of the heating coil in the case where flowing through high frequency electric can be reduced, as a result, energy
Enough reduce the loss at heating coil.
According to the 5th mode of the disclosure, in the either type in first to fourth mode, fused layers have less than the
The fusing point of one insulating barrier and the second insulating barrier.
According to the manner, fused layers can be utilized to fuse winding without breaking the first insulating barrier and the second insulating barrier
Damage.
6th mode of the disclosure is the cooker for the heating coil for possessing the either type in the first to the 5th mode.Root
According to the manner, due to using the heating coil without broken string in manufacturing process, therefore, it is possible to provide reliability high cooker.
Below, the preferred embodiment of the disclosure is described in detail referring to the drawings.In addition, in following explanation
In, identical label is marked to same or equivalent part, the repetitive description thereof will be omitted sometimes.
[structure of heating coil]
On the heating coil 1 of embodiment of the present disclosure, illustrated using Fig. 1 to Fig. 4 B.As it is explained in detail hereinafter, this
The induction heating cooking instrument of embodiment is cooker 100 (reference picture 5).
Fig. 1 is the stereogram for the outward appearance for showing heating coil 1.Fig. 2 is the stereogram for the winding 2 for forming heating coil 1.Figure
3A, Fig. 3 B are that the cored wire 3, the sectional view of cored wire 6 that form winding 2 is shown respectively.
As shown in figure 1, by the way that an elongated winding 2 is rolled into vortex shape, so as to form heating coil 1.Such as Fig. 2 institutes
Show, it is twisted and shape by the assembly line for forming the cored wire 6 of the cored wire 3 of regulation radical and regulation radical by defined interval configuration
Into winding 2.
As shown in Figure 3A, cored wire 3 has elongated conductor 4 and the insulating barrier 5 being arranged on the surface of conductor 4.Conductor 4
Including：Center conductor 4a, it is arranged on the center of conductor 4；With clad 4b, it is arranged on the surface of conductor 4.
As shown in Figure 3 B, cored wire 6 has：Elongated conductor 7；Insulating barrier 8, it is arranged on the surface of conductor 7；With it is molten
Layer 9 is closed, it is arranged on the surface of insulating barrier 8.Conductor 7 includes：Center conductor 7a, it is arranged on the center of conductor 7；With
Clad 7b, it is arranged on the surface of conductor 7.
The twisted assembly line formed of cored wire 3,6 is wound in fixture, when high frequency electric is provided to the assembly line, collection
Zygonema is generated heat.By the heating, the fused layers 9 of cored wire 6 melt.As a result, cored wire 3 fuses with cored wire 6, winding 2 is formed.
In addition, cored wire 3 is corresponding with the first cored wire, cored wire 6 is corresponding with the second cored wire.Conductor 4 is corresponding with the first conductor, conductor
7 is corresponding with the second conductor.Insulating barrier 5 is corresponding with the first insulating barrier, and insulating barrier 8 is corresponding with the second insulating barrier.Center conductor 4a with
First center conductor is corresponding, and center conductor 7a is corresponding with the second center conductor.Clad 4b is corresponding with the first clad, clad
7b is corresponding with the second clad.
In induction heating cooking instrument, as 20~100kHZHigh frequency electric when being provided to heating coil, due to epidermis
Effect, current convergence is in the surface of conductor.Therefore, there is center conductor in conductor and is arranged on the surface of center conductor
In the case of clad, it is desirable to reduce the surface portion of conductor is the resistance value of clad to suppress the heating of heating coil and disappear
Power consumption power.
In order to mitigate the burden of user, it is preferred that the lighter in weight of portable household appliances as cooker.
In present embodiment, center conductor 4a, 7a volumetric resistivity value are small, are made up of material in light weight, aluminium or metal containing aluminium.
Preferably, clad 4b, 7b is less than material, the gold such as gold, silver, copper of aluminum or aluminum alloy by volumetric resistivity value
Category is formed.In the present embodiment, clad 4b, 7b is made up of copper.
In said structure, the radius of conductor 4,7, center conductor 4a and cladding are set according to the purposes of heating coil 1
Layer 4b ratio and center conductor 7a and clad 7b ratio etc..
As described above, flowing through 20~100kHZHigh frequency electric heating coil 1 in, it is preferred that conductor 4,7 it is straight
Footpath is set to 0.1~0.3mm, it is further preferred that being set to 0.25mm.
Preferably, clad 4b sectional area is configured to the 10~20% of the sectional area of the conductor 4 of above-mentioned diameter.More
Preferably, it is set to 15%.It is also same with conductor 4 on conductor 7.
According to the structure, the resistance of the heating coil 1 when high frequency electric flows through heating coil 1 can be reduced, can be reduced
The loss of heating coil 1.
Preferably, insulating barrier 5,8 is made up of the insulating materials of F kinds or H kinds as defined in electrical appliance safety law.According to
The structure, conductor 4,7 can reliably be insulated respectively using insulating barrier 5,8.
In the present embodiment, it is preferred that fused layers 9 by fusing point less than insulating barrier 5,8, higher than work when heater wire
Thermoplastic material, such as polyamide-based resin of the temperature of circle 1 are formed.According to the structure, fused layers 9 less than insulating barrier 5,
Melted at a temperature of 8 fusing point.
Therefore, cored wire 3 is made to be melted with cored wire 6 in order to which cored wire 3 and cored wire 6 are bundled to form the winding 2 of heating coil 1
During conjunction, insulating barrier 5,8 can be utilized to make that conductor 4,7 reliably insulate respectively and insulating barrier 5,8 will not be damaged.
Below, the feature of the heating coil 1 of present embodiment is illustrated.
As described above, the more cored wires 3 without fused layers 9 and the more cored wires 6 comprising fused layers 9 are twisted together and make them
Fuse and form the winding 2 of heating coil 1.
Will merely with the cored wire 6 with fused layers 9 form winding 2 with comprising the cored wire 3 without fused layers 9 and
The situation for forming winding 2 compares, and compared with the latter, the former winding 2 is more firmly fixed.Therefore, when bending winding 2
Winding 2 cross sectional shape change on, compared with the latter, the former is less.Therefore, compared with the latter, the former is located at bending
The cored wire 3,6 in outside of winding 2 stretch longer.
In the present embodiment, the conductor 4 of cored wire 3 includes：Center conductor 4a, it is made up of aluminum or aluminum alloy；And cladding
Layer 4b, it is made up of copper.The conductor 7 of cored wire 6 includes：Center conductor 7a, it is made up of aluminum or aluminum alloy；With clad 7b, its
It is made up of copper.Therefore, if winding 2 is stretched longer, it is likely that center conductor 4a, 7a of poor ductility break.
In the present embodiment, in order to prevent center conductor 4a, 7a break, not only include with fused layers 9 cored wire 6,
The cored wire 3 without fused layers 9 is also included to form winding 2.According to present embodiment, the mutual combination of cored wire can be reduced
Power, and can winding 2 be formed more soft.As a result, the broken string of the winding 2 in manufacturing process can be prevented.
Below, more specifically illustrate.Distance of the neutral surface of winding 2 according to bending radius and from bending to periphery
To determine the elongation of the winding 2 of bending.The elongation of winding 2 is bigger, and winding 2 is stretched longer, easier broken string.
Fig. 4 A are the figures for showing to make the only state that the winding 2 comprising cored wire 6 is bent.As shown in Figure 4 A, if setting the straight of winding 2
Footpath is D0, set the bending radius of winding 2 as R1, set distance from the neutral surface F of winding 2 to the periphery of winding 2 as L1, set winding
2 elongation is H1, then elongation H1 is represented with formula (1).
H1=L1/R1 (1)
In only there is the winding 2 of cored wire 6, because winding 2 forms harder, therefore, make winding 2 by radius of curvature R 1
In the case of bending, the cross sectional shape of winding 2 hardly changes.Therefore, in this case, from neutral surface F to winding 2 periphery
Distance L1 represented with formula (2).
L1=D0/2 (2)
Fig. 4 B are the figures for the state for showing to make the bending of winding 2 comprising cored wire 3,6.As shown in Figure 4 B, if setting the straight of winding 2
Footpath is D0, set the bending radius of winding 2 as R1, set distance from the neutral surface F of winding 2 to the periphery of winding 2 as L2, set winding
2 elongation is H2, then elongation H2 is represented with formula (3).
H2=L2/R1 (3)
In the case illustrated in fig. 4b, compared with the situation shown in Fig. 4 A, the adhesion between cored wire is weak, and winding 2 is soft.Cause
This, if bending winding 2, as shown in Figure 4 B, the cross sectional shape of winding 2 is ellipse.Now, if winding by cross sectional shape
2 major diameter, minor axis are set to D1, D2, then the distance L2 of 2 periphery is minor axis D2 half from neutral surface F to winding.
Because minor axis D2 is less than diameter D0, therefore, the elongation H2 of the winding 2 in the case that Fig. 4 B are shown is less than Fig. 4 A institutes
The elongation H1 of winding 2 in the case of showing.
Therefore, in the case where forming heating winding 1 using the winding 2 in the case of shown in Fig. 4 B, with using Fig. 4 A
Winding 2 in the case of shown is compared to form the situation of heating winding 1, and winding 2 is not stretched longer.As a result, it can prevent
The only broken string of the winding 2 in manufacturing process.
[ratio of the cored wire 6 in winding 2]
Below, the heating coil 1 of present embodiment is illustrated in more detail.
If the ratio increase of the cored wire 6 in winding 2, the amount increase of contained fused layers 9 in winding 2, winding 2 is by more firm
Admittedly it is fixed.As described above, with firmly fixing winding 2, the possibility that winding 2 breaks when forming heating coil 1
Increase.
On the other hand, if the ratio of the cored wire 6 in winding 2 is reduced, the amount of contained fused layers 9 is reduced in winding 2, core
Adhesion between line reduces, and winding 2 becomes soft.Therefore, the possibility drop that winding 2 breaks when forming heating coil 1
It is low.But if the adhesion between cored wire excessively reduces, cored wire 3,6 is not firmly fixed, the intensity decreases of heating coil 1.
Therefore, in order to improve the intensity of heating coil 1 and prevent the broken string of winding 2, it is necessary to core using appropriate ratio
Line 3 and cored wire 6 form winding 2.
Below, the related experimental result of the appropriate ratio of the cored wire 6 to being included in winding 2 illustrates.
In this experiment, the heating coil 1 formed using the winding 2 by the cored wire 3,6 with following structures.Cored wire 3 has
Have：Conductor 4, it has 0.25mm diameter；With insulating barrier 5, it is made up of F kind insulating materials.Conductor 4 includes：Center conductor
4a, it is made up of aluminum or aluminum alloy；With clad 4b, it is made up of copper.
Cored wire 6 has：Conductor 7, it has 0.25mm diameter；Insulating barrier 8, it is made up of F kind insulating materials；And fusion
Layer 9, it is made up of polyamide-based resin.Conductor 7 includes：Center conductor 7a, it is made up of aluminum or aluminum alloy；With clad 7b,
It is made up of copper.
In this experiment, the winding 2 for being 25%~55% relative to the ratio of total radical of cored wire 3,6 for cored wire 6,
After 90 degree curved is put in into row stipulated number (such as 2,3 times), it is thus identified that the cored wire in winding 2 is whether there is in stripping and winding 2
Whether there is broken string.
Table 1 shows experimental result.Here, winding 2 has M roots cored wire 3 and N roots cored wire 6.That is, the N/ (M+ shown in table 1
N ratio of the cored wire 6 relative to total radical of cored wire contained in winding 2) is referred to.
[table 1]
| N/(M+N) | 25% | 30% | 35% | 40% | 45% | 50% | 55% |
| Peel off | × | △ | ○ | ○ | ○ | ○ | ○ |
| Broken string | ○ | ○ | ○ | ○ | ○ | △ | × |
The evaluation of stripping to the cored wire shown in table 1 is divided into following three class."○" evaluation refers in front winding 2 is tested
Have no that cored wire is peeled off, also maintains the state before experiment after the test.Before experiment, visible in the cored wire of only a part and winding 2
Stripping, but do not occur further to peel off after the test, maintain the state before experiment, on the situation, commented for "○" yet
Valency.
" △ ", which is evaluated, to be referred to, the stripping of visible cored wire to a certain degree before experiment, but is not occurred after the test further
Stripping, maintain experiment before state."×" evaluates the stripping for referring to the visible more cored wires before experiment."○" and " △ "
The winding 2 of evaluation can be used, but the winding 2 of "×" evaluation is unusable.
Evaluation for the broken string of the winding 2 shown in table 1 is divided into following three class."○" evaluation did not both have after referring to experiment
The cracking on surface is not also broken." △ " refers to the visible cracking in surface after the test but not broken though evaluating."×" is evaluated
Refer to be broken after the test."○" and the winding 2 of " △ " evaluation can be used, but the winding 2 of "×" evaluation is unusable.
Above-mentioned experiment as a result, as shown in table 1, in order to improve the intensity of heating coil 1 and prevent the broken string of winding 2,
Preferably, cored wire 6 is 30%~50% relative to the ratio of total radical of cored wire contained in winding 2, more preferably
35%~45%.
In addition, for example, in cored wire 3, it is further preferred that the sectional area of insulating barrier 5 be the sectional area of cored wire 3 20%~
70%.In cored wire 6, it is further preferred that the sectional area of insulating barrier 8 and fused layers 9 be the sectional area of cored wire 6 20%~
70%.
Thereby, it is possible to prevent the overvulcanization of winding 2, and can further prevent in the manufacturing process of heating coil 1
The broken string of winding 2.
[structure of cooker]
Below, the cooker 100 of present embodiment is illustrated using Fig. 5.Fig. 5 is the sectional view of cooker 100.
As shown in figure 5, cooker 100 has：Main body 10；Lid 11, it covers the upper surface of main body 10；With pot 12, its
It is accommodated in 10 to disassembly ease.
Cooker 100 has the heating coil 1 formed using above-mentioned winding 2 in the inside of main body 10, by using heating
Coil 1 to carry out sensing heating to pot 12, so as to be cooked to food such as the rice in pot 12.
As shown in figure 1, cooker 100 has the heating coil 1 for being molded into the shape along the bottom surface of pot 12 and side.By
This, cooker 100 expeditiously can carry out sensing heating to pot 12.
As described above, according to present embodiment, the heating coil 1 without broken string in manufacturing process can be formed in.Due to tool
Standby heating coil 1, therefore, it is possible to provide reliability high cooker 100.
But the disclosure is not limited to above-mentioned embodiment.
Conductor 4,7 only can also be made up of aluminum or aluminum alloy.According to this structure, can obtain equal with above-mentioned structure
Effect.
Nickel or the surface of tin coating conductor 4 and conductor 7 can also be utilized.According to this structure, can obtain and above-mentioned knot
The equal effect of structure, and the processability of the heating coils such as the wettability of scolding tin 1 can be improved.
Industrial applicability
The heating coil of the disclosure can be applied not only to induction heating cooking instrument, apply also for all sensing heating dresses
Put.
Label declaration
1st, 200 heating coil
2 windings
3rd, 6 cored wire
4th, 7,202 conductor
4a, 7a, 301 center conductors
4b, 7b, 303 clads
5th, 8,203 insulating barrier
9th, 204 fused layers
10 main bodys
11 lids
12 pots
100 cookers
302 intermetallic compounds layers
Claims (6)
1. a kind of heating coil, the heating coil possesses winding, wherein,
The winding has the first cored wire and the second cored wire,
First cored wire includes：The first elongated conductor；With the first insulating barrier, it is arranged on the surface of first conductor
On,
Second cored wire includes：The second elongated conductor；Second insulating barrier, it is arranged on the surface of second conductor
On；And fused layers, it is arranged on the surface of second insulating barrier.
2. heating coil according to claim 1, wherein,
The radical of first cored wire be the radical of radical and second cored wire of first cored wire total 30%~
50%.
3. heating coil according to claim 1, wherein,
First conductor includes：First center conductor, it is arranged on the center of first conductor；With the first clad,
It is arranged on the surface of first center conductor, and first conductor has 0.1~0.3mm diameter,
First clad has the volume resistance less than first center conductor, and the section with first conductor
10~20% long-pending sectional area.
4. heating coil according to claim 1, wherein,
Second conductor includes：Second center conductor, it is arranged on the center of second conductor；With the second clad,
It is arranged on the surface of second center conductor, and second conductor has 0.1~0.3mm diameter,
Second clad has the volume resistance less than second center conductor, and the section with second conductor
10~20% long-pending sectional area.
5. heating coil according to claim 1, wherein,
The fused layers have the fusing point less than first insulating barrier and second insulating barrier.
6. a kind of cooker, wherein,
The cooker possesses the heating coil described in claim 1.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-172516 | 2015-09-02 | ||
| JP2015172516 | 2015-09-02 | ||
| PCT/JP2016/003923 WO2017038074A1 (en) | 2015-09-02 | 2016-08-29 | Heating coil and rice-cooker equipped with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107535022A true CN107535022A (en) | 2018-01-02 |
| CN107535022B CN107535022B (en) | 2020-10-27 |
Family
ID=58187048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680024450.1A Active CN107535022B (en) | 2015-09-02 | 2016-08-29 | Heating coil and rice cooker provided with same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6832488B2 (en) |
| CN (1) | CN107535022B (en) |
| WO (1) | WO2017038074A1 (en) |
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|---|---|---|---|---|
| JP2003151754A (en) * | 2001-11-08 | 2003-05-23 | Matsushita Electric Ind Co Ltd | Induction heating apparatus |
| JP2009140708A (en) * | 2007-12-05 | 2009-06-25 | Meleagros Corp | Induction heating device and heating container used in the same |
| JP2012048972A (en) * | 2010-08-26 | 2012-03-08 | Kurabe Ind Co Ltd | Coil wire and coil for induction heating |
| JP2013168385A (en) * | 2013-05-15 | 2013-08-29 | Totoku Electric Co Ltd | Wire and coil |
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2016
- 2016-08-29 JP JP2017537539A patent/JP6832488B2/en active Active
- 2016-08-29 CN CN201680024450.1A patent/CN107535022B/en active Active
- 2016-08-29 WO PCT/JP2016/003923 patent/WO2017038074A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003151754A (en) * | 2001-11-08 | 2003-05-23 | Matsushita Electric Ind Co Ltd | Induction heating apparatus |
| JP2009140708A (en) * | 2007-12-05 | 2009-06-25 | Meleagros Corp | Induction heating device and heating container used in the same |
| JP2012048972A (en) * | 2010-08-26 | 2012-03-08 | Kurabe Ind Co Ltd | Coil wire and coil for induction heating |
| JP2013168385A (en) * | 2013-05-15 | 2013-08-29 | Totoku Electric Co Ltd | Wire and coil |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2017038074A1 (en) | 2018-06-28 |
| WO2017038074A1 (en) | 2017-03-09 |
| CN107535022B (en) | 2020-10-27 |
| JP6832488B2 (en) | 2021-02-24 |
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