CN101697860A - Compound bottom sheet of magnetic induction heating cooker - Google Patents
Compound bottom sheet of magnetic induction heating cooker Download PDFInfo
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- CN101697860A CN101697860A CN200910212055A CN200910212055A CN101697860A CN 101697860 A CN101697860 A CN 101697860A CN 200910212055 A CN200910212055 A CN 200910212055A CN 200910212055 A CN200910212055 A CN 200910212055A CN 101697860 A CN101697860 A CN 101697860A
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Abstract
The invention provides a compound bottom sheet of a magnetic induction heating cooker, belongs to the technical field of mechanics, and aims to solve the problem that a metallic sheet on the bottom part of the conventional cooker cannot completely avoid sudden swelling and/or deformation of the bottom part. The compound bottom sheet arranged on the bottom part of the cooker comprises a sheet body made of a magnetic conduction material, wherein the sheet body is circular ring-shaped; the outer edge of the sheet body is provided with a plurality of outer through holes of which the openings face the outer edge and which are extended inward, while the inner edge is provided with a plurality of inner through holes of which the openings are toward the inner edge and which are extended outward. The compound bottom sheet of the magnetic induction heating cooker has the advantages of little thermal expansion deformation, stable structure, difficult falling-off and long service life.
Description
Technical field
The present invention relates to field of mechanical technique, relate to cooker, especially relate to a kind of compound bottom sheet of magnetic induction heating cooker.
Background technology
The existing cooker of being made by non-magnet_conductible material all can't be applicable to electromagnetic oven, some above-mentioned cooker that can be used for electromagnetic oven all is to adopt at the compound last layer in cooker bottom to have ferromagnetic stainless steel substrates, makes non-magnetic cooker such as aluminum pot also can be applicable to electromagnetic oven.Also all can assemble last layer heat conduction good metal plate in heated base in the time of mostly conducts heat.But for the heat effect of heater, the material layer that the cooker bottom has different structure is many more, expansion and distortion that easy more appearance is harmful.Like this, container just occurs and be out of shape especially coming off of heat-conducting layer for a long time, perhaps be connected the phenomenon that local fracture occurs with metal continuity between the rolled plate at the single or multiple lift aluminium lamination.Obviously, the heat conductivity of such container can cause the minimizing of the thermal efficiency, and can prolong the cooking time.
For this reason, people have through hole on sheet metal, for example, Chinese patent literature discloses a kind of cast aluminium cooker [application number: 200620041774.X] that can be used for electromagnetic oven, and it comprises a chassis that is used to heat, and the chassis is provided with the sheet metal that adopts permeability magnetic material to make, on sheet metal, have several through holes, the sheet metal potting have flange at the through hole edge of sheet metal, and this flange extends to the outer surface on chassis in the chassis.The somebody has invented a kind of cooking appliance [application number: 93109890.4] with heated base, is furnished with through hole on sheet metal, so that through hole is loaded by the metal on the metallic plate.During the sheet metal expanded by heating, through hole has reduced the compound interface generation bubble of bottom and the generation of bulge situation as cushion space.But the outer rim place of the sheet metal of this structure is not provided with through hole, makes the outer rim of sheet metal not have the cushion space of expansion.The inner stress that produces is concentrated to the sheet metal center after often causing sheet metal to be heated, and makes the sheet metal center that more serious deformation take place, the generation bulge.In addition, when egative film is heated, can produce the stress of bigger vertical its radius,, be easy to cause distortion if not with its shunting.
The sheet metal of the cooking appliance bottom of other structures also can't solve the problem that known bottom expands suddenly and/or is out of shape fully.
Summary of the invention
The objective of the invention is at the problems referred to above, provide a kind of influence of expanded by heating distortion little, structure is firm, the compound bottom sheet of the magnetic induction heating cooker of difficult drop-off and long service life.
For achieving the above object, the present invention has adopted following technical proposal: the compound bottom sheet of this magnetic induction heating cooker, be arranged at the bottom of cooker, comprise the lamellar body of making by permeability magnetic material, it is characterized in that, described lamellar body is annular, has some openings towards outer rim and the accessibke porosity that extends internally in the outer rim of lamellar body, has some openings towards inner edge and outward extending inner via hole at the inner edge of lamellar body.
Lamellar body is annular, and the middle part is hollow, has stopped traditional plate center and bulge can take place and be out of shape the situation generation that the connection part that causes lamellar body and cooker bottom produces the gap, makes structure more firm.Be equipped with the through hole with opening on the inner edge of ring slice and the outer rim, be open, its opening of compression is drawn close to the center in the both sides of through hole when being heated, reduce the influence that the lamellar body temperature distortion brings, thereby make egative film difficult drop-off and long service life.Especially, because the opening that all has on the inner edge of ring slice and the outer rim makes lamellar body in outer rim and center sufficient deformable space be arranged all, reduced further that lamellar body is subjected to thermal deformation and the bulge and the distortion that may cause.Its principle is, when lamellar body is heated, can produce the stress of bigger vertical its radius, and accessibke porosity can shift the stress of vertical radial direction with inner via hole to circumferencial direction, realizes that stress disperses.
In the compound bottom sheet of above-mentioned magnetic induction heating cooker, described accessibke porosity comprises some arc accessibke porosities, and above-mentioned arc accessibke porosity is separated into several Flos Nelumbinis one shape zone and leaf zones of ginkgo with whole lamellar body, and Flos Nelumbinis one shape is regional and the leaf zone of ginkgo is arranged alternately and the inner is linked together.Owing to whole compound bottom sheet is separated into some zones that are linked together, helps stress more and disperse.Certainly, Flos Nelumbinis one shape zone is meant that with the leaf zone of ginkgo shape is roughly identical with Flos Nelumbinis one and ginkgo leaf.The outer end in the Flos Nelumbinis one shape zone here can be tip also can be curved.
In the compound bottom sheet of above-mentioned magnetic induction heating cooker, described accessibke porosity comprises some straight line accessibke porosities, and described straight line accessibke porosity is positioned on the center line in the leaf zone of ginkgo.Because the centerline in the leaf zone of ginkgo is provided with the straight line accessibke porosity, helps it more and absorb stress.
In the compound bottom sheet of above-mentioned magnetic induction heating cooker, also being provided with its center line on the leaf zone of described ginkgo is symmetry axis, symmetrically arranged some arc accessibke porosities, and the arc accessibke porosity is divergent shape.This structure makes the leaf zone of whole ginkgo can absorb stress more fully when being heated.
In the compound bottom sheet of above-mentioned magnetic induction heating cooker, described inner via hole comprises some straight line inner via holes, and described straight line inner via hole is positioned on the center line in Flos Nelumbinis one shape zone.Because the centerline in Flos Nelumbinis one shape zone is provided with the straight line inner via hole, helps it more and absorb stress
In the compound bottom sheet of above-mentioned magnetic induction heating cooker, also being provided with its center line on the described Flos Nelumbinis one shape zone is symmetry axis, symmetrically arranged some arc inner via holes, and the arc inner via hole is and gathers shape.This structure makes whole Flos Nelumbinis one shape zone can absorb stress more fully when being heated.
In the compound bottom sheet of above-mentioned magnetic induction heating cooker, described lamellar body adopts stainless steel material to be made.Stainless steel material has good magnetic conductivity, and can avoid corrosion, increases the service life
As another kind of situation, in the compound bottom sheet of above-mentioned magnetic induction heating cooker, described accessibke porosity comprises some equally distributed in a circumferential direction straight line accessibke porosities, and described inner via hole comprises some equally distributed in a circumferential direction straight line inner via holes.This structure is easy to processing and manufacturing, and can effectively avoid lamellar body to be subjected to thermal deformation equally and the bulge and the distortion that may cause.
In the compound bottom sheet of above-mentioned magnetic induction heating cooker, each described straight line accessibke porosity and each described straight line inner via hole are arranged alternately.
In the compound bottom sheet of above-mentioned magnetic induction heating cooker, the equal in length of each straight line accessibke porosity, the equal in length of each straight line inner via hole, and the length sum of a straight line accessibke porosity and a straight line inner via hole equates with the width of lamellar body.
Compared with prior art, the advantage of the compound bottom sheet of this magnetic induction heating cooker is: 1, lamellar body is the annular of middle part hollow out, stopped traditional structure and bulge and distortion can take place, caused the situation in the connection part generation gap of lamellar body and cooker bottom to take place, made structure more firm in the center.2, be respectively equipped with inner via hole with opening and accessibke porosity on the inner edge of ring slice and the outer rim, reduced the lamellar body influence that deformation brings of being heated, make egative film difficult drop-off and long service life with opening.3, owing to be provided with the inner via hole of arc and the accessibke porosity of arc, and be separated into a plurality of zones, make lamellar body dispersive stress more fully, avoid producing improper distortion.
Description of drawings
Fig. 1 is the structural representation of embodiment 1 provided by the invention.
Fig. 2 is the part-structure schematic diagram of embodiment 1 provided by the invention.
Fig. 3 is another part structural representation of embodiment 1 provided by the invention.
Fig. 4 is the structural representation of embodiment 2 provided by the invention.
Among the figure, lamellar body 1, centre bore 10, arc accessibke porosity 21, straight line accessibke porosity 22, arc inner via hole 31, straight line inner via hole 32, Flos Nelumbinis one shape zone 4, ginkgo are leaf by regional 5.
The specific embodiment
Embodiment 1:
As shown in Figure 1, the compound bottom sheet of this magnetic induction heating cooker is arranged at the bottom of cooker, comprises the lamellar body of being made by permeability magnetic material 1.Present embodiment median plate body 1 adopts stainless steel material to make.Lamellar body 1 is made by flaky material, forms centre bore 10 in the center of flaky material hollow out, and whole lamellar body 1 is annular.Have some openings toward the outer side and the accessibke porosity that extends internally in the outer rim of lamellar body 1, have some openings towards inboard and outward extending inner via hole at the inner edge of lamellar body 1.
As Figure 1-3, accessibke porosity comprises some arc accessibke porosities 21, and it is leaf regional 5 that above-mentioned arc accessibke porosity 21 is separated into several Flos Nelumbinis one shapes zone 4 and ginkgo with whole lamellar body 1, Flos Nelumbinis one shape zone 4 and ginkgo leaf regional 5 is arranged alternately and the inner is linked together.Accessibke porosity comprises some straight line accessibke porosities 22, and described straight line accessibke porosity 22 is positioned on leaf regional 5 the center line of ginkgo.Also being provided with its center line on the ginkgo leaf regional 5 is symmetry axis, symmetrically arranged some arc accessibke porosities 21, and arc accessibke porosity 21 is divergent shape.Inner via hole comprises some straight line inner via holes 32, and described straight line inner via hole 32 is positioned on the center line in Flos Nelumbinis one shape zone 4.Also being provided with its center line on the Flos Nelumbinis one shape zone 4 is symmetry axis, symmetrically arranged some arc inner via holes 31, and arc inner via hole 31 is and gathers shape.
Present embodiment can adopt the sheet stainless steel material to be stamped to form through mould.Flos Nelumbinis one shape in present embodiment zone 4 is meant that with ginkgo leaf regional 5 shape is roughly identical with Flos Nelumbinis one and ginkgo leaf.The outer end in the Flos Nelumbinis one shape zone 4 here can be tip also can be curved.
Embodiment 2:
As shown in Figure 4, in the present embodiment, accessibke porosity comprises some equally distributed in a circumferential direction straight line accessibke porosities 22, and inner via hole comprises some equally distributed in a circumferential direction straight line inner via holes 32.Each straight line accessibke porosity 22 is arranged alternately with each straight line inner via hole 32.The equal in length of each straight line accessibke porosity 22, the equal in length of each straight line inner via hole 32, and the length sum of a straight line accessibke porosity 22 and a straight line inner via hole 32 equates with the width of lamellar body 1.All the other all with embodiment 1 roughly the same, this paper does not give unnecessary details.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as lamellar body 1, centre bore 10, arc accessibke porosity 21, straight line accessibke porosity 22, arc inner via hole 31, straight line inner via hole 32, Flos Nelumbinis one shape zone 4, ginkgo leaf regional 5 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (10)
1. the compound bottom sheet of a magnetic induction heating cooker, be arranged at the bottom of cooker, comprise the lamellar body of making by permeability magnetic material (1), it is characterized in that, described lamellar body (1) is annular, have some openings toward the outer side and the accessibke porosity that extends internally in the outer rim of lamellar body (1), have some openings towards inboard and outward extending inner via hole at the inner edge of lamellar body (1).
2. the compound bottom sheet of magnetic induction heating cooker according to claim 1, it is characterized in that, described accessibke porosity comprises some arc accessibke porosities (21), and above-mentioned arc accessibke porosity (21) is separated into several Flos Nelumbinis one shape zones (4) and the leaf zone of ginkgo (5) with whole lamellar body (1), Flos Nelumbinis one shape zone (4) and the leaf zone of ginkgo (5) is arranged alternately and the inner is linked together.
3. the compound bottom sheet of magnetic induction heating cooker according to claim 2 is characterized in that, described accessibke porosity comprises some straight line accessibke porosities (22), and described straight line accessibke porosity (22) is positioned on the center line in the leaf zone of ginkgo (5).
4. the compound bottom sheet of magnetic induction heating cooker according to claim 3, it is characterized in that, also being provided with its center line on the leaf zone of described ginkgo (5) is symmetry axis, symmetrically arranged some arc accessibke porosities (21), and arc accessibke porosity (21) is divergent shape.
5. the compound bottom sheet of magnetic induction heating cooker according to claim 2 is characterized in that, described inner via hole comprises some straight line inner via holes (32), and described straight line inner via hole (32) is positioned on the center line in Flos Nelumbinis one shape zone (4).
6. the compound bottom sheet of magnetic induction heating cooker according to claim 5, it is characterized in that, also being provided with its center line on the described Flos Nelumbinis one shape zone (4) is symmetry axis, symmetrically arranged some arc inner via holes (31), and arc inner via hole (31) is and gathers shape.
7. obtain according to claim 1 or 2 or 3 or the compound bottom sheet of 5 or 6 described magnetic induction heating cookers, it is characterized in that, described lamellar body (1) adopts stainless steel material to be made.
8. the compound bottom sheet of magnetic induction heating cooker according to claim 1, it is characterized in that, described accessibke porosity comprises some equally distributed in a circumferential direction straight line accessibke porosities (22), and described inner via hole comprises some equally distributed in a circumferential direction straight line inner via holes (32).
9. the compound bottom sheet of magnetic induction heating cooker according to claim 8 is characterized in that, described each described straight line accessibke porosity (22) is arranged alternately with each described straight line inner via hole (32).
10. the compound bottom sheet of magnetic induction heating cooker according to claim 9, it is characterized in that, the equal in length of each straight line accessibke porosity (22), the equal in length of each straight line inner via hole (32), and the length sum of a straight line accessibke porosity (22) and a straight line inner via hole (32) equates with the width of lamellar body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102120558A CN101697860B (en) | 2009-11-02 | 2009-11-02 | Compound bottom sheet of magnetic induction heating cooker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102120558A CN101697860B (en) | 2009-11-02 | 2009-11-02 | Compound bottom sheet of magnetic induction heating cooker |
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| Publication Number | Publication Date |
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| CN101697860A true CN101697860A (en) | 2010-04-28 |
| CN101697860B CN101697860B (en) | 2011-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102120558A Active CN101697860B (en) | 2009-11-02 | 2009-11-02 | Compound bottom sheet of magnetic induction heating cooker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105433764A (en) * | 2015-12-03 | 2016-03-30 | 九阳股份有限公司 | Multipurpose frying pan |
| CN109363486A (en) * | 2018-11-16 | 2019-02-22 | 宁波喜尔美厨房用品有限公司 | A kind of stainless steel magnetic conduction net and a kind of boiler for induction cooker and its bottom of a pan processing technology |
-
2009
- 2009-11-02 CN CN2009102120558A patent/CN101697860B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105433764A (en) * | 2015-12-03 | 2016-03-30 | 九阳股份有限公司 | Multipurpose frying pan |
| CN109363486A (en) * | 2018-11-16 | 2019-02-22 | 宁波喜尔美厨房用品有限公司 | A kind of stainless steel magnetic conduction net and a kind of boiler for induction cooker and its bottom of a pan processing technology |
| CN109363486B (en) * | 2018-11-16 | 2024-05-03 | 宁波喜尔美厨房用品有限公司 | Stainless steel magnetic conduction net, aluminum pot for electromagnetic oven and pot bottom processing technology of aluminum pot |
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| Publication number | Publication date |
|---|---|
| CN101697860B (en) | 2011-06-22 |
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