CN106900097B - Wire coil for electromagnetic heating - Google Patents
Wire coil for electromagnetic heating Download PDFInfo
- Publication number
- CN106900097B CN106900097B CN201510945164.6A CN201510945164A CN106900097B CN 106900097 B CN106900097 B CN 106900097B CN 201510945164 A CN201510945164 A CN 201510945164A CN 106900097 B CN106900097 B CN 106900097B
- Authority
- CN
- China
- Prior art keywords
- magnetic
- coil
- side wall
- wire coil
- electromagnetic heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 30
- 230000005389 magnetism Effects 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 238000009826 distribution Methods 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000006698 induction Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010411 cooking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
Abstract
The invention relates to a wire coil for electromagnetic heating, which comprises a coil and magnetic strips, wherein the magnetic strips are radially distributed, the coil is arranged above the magnetic strips in a surrounding manner, the magnetic strips comprise first side walls, bottom walls and magnetic gathering parts extending along the upper end parts of the first side walls, the magnetic gathering parts are positioned on the outer peripheral sides of the wire coil, and the coil is wound in a space surrounded by the bottom walls and the first side walls. Through set up in the magnet periphery and gather magnetic part for the magnetic field that magnetic stripe structure will leak in the electromagnetism stove drum shifts, makes the magnetic field gathering of leaking bottom the pan, thereby the magnetic field of confined production vortex heats the pan more intensively, makes the pan generate heat more fully more evenly, with this improvement complete machine heating efficiency, reduces complete machine magnetism simultaneously and leaks, avoids the electromagnetism stove magnetism to leak the heat radiation damage electromagnetism stove that produces iron kitchen range face reverse heating.
Description
Technical Field
The invention relates to a kitchen cooking appliance, in particular to a wire coil for electromagnetic heating.
Background
In the induction cooker, an induction cooker wire coil is one of main components and comprises magnets arranged at intervals, but the wire coil has magnetic leakage and other fields in the working process, particularly the application of the existing ultrathin induction cooker technology, when the induction cooker works on a ferrous stove surface, the ferrous stove surface is easily heated due to excessive magnetic field leakage, and finally the lower cover of the induction cooker is damaged due to high temperature rise caused by heat radiation.
Disclosure of Invention
In order to solve the technical problems, the invention provides the wire coil for electromagnetic heating, which converges the leaked magnetic field to the bottom of the cooker, avoids the leakage of the magnetic field and reverse heating, and simultaneously enables the magnetic field to more intensively and more uniformly heat the cooker.
The utility model provides a drum for electromagnetic heating, includes coil, magnetic stripe, the magnetic stripe is radial distribution, and the coil encircles and sets up in the magnetic stripe top, the magnetic stripe includes that first lateral wall, diapire form and the portion of gathering magnetism that extends along first lateral wall upper end, it is located the periphery side of drum to gather magnetism position, the coil coiling is in the space that diapire and first lateral wall enclose.
Furthermore, the magnetic strip also comprises a second side wall, the first side wall, the bottom wall and the second side wall form a U-shaped part, and the coil is wound in the space of the U-shaped part.
Further, the magnetism gathering part comprises a horizontal part arranged in parallel with the bottom wall of the magnetic strip, and the upper surface of the horizontal part is flush with the top end face of the first side wall.
Further, one end of the horizontal part is connected with the first side wall, and the other end of the horizontal part is arranged along the wire coil and faces to or is far away from the center of the wire coil in the radial direction.
Further, the second side wall is located near the central side of the wire coil, and the tops of the first side wall and the second side wall are higher than the coil.
Further, the magnetism gathering part also comprises a vertical part extending along the horizontal part, and the top end face of the vertical part is higher than the upper surface of the horizontal part.
Further, the height of the vertical portion is less than the height of the second sidewall and/or the length of the horizontal portion.
Further, the U-shaped part of the magnetic strip and the magnetic gathering part are integrally formed.
Further, the top end face of the second side wall is higher than the top end face of the first side wall.
Further, the wire coil further comprises a support, a wire winding groove is formed in the upper surface of the support, the coil is arranged in the wire winding groove, a magnetic strip groove is formed in the lower surface of the support, and the magnetic strip is arranged in the magnetic strip groove.
Through set up in the magnet periphery and gather magnetic part for the magnetic field that magnetic stripe structure will leak in the electromagnetism stove drum shifts, makes the magnetic field gathering of leaking bottom the pan, thereby the magnetic field of confined production vortex heats the pan more intensively, makes the pan generate heat more fully more evenly, with this improvement complete machine heating efficiency, reduces complete machine magnetism simultaneously and leaks, avoids the electromagnetism stove magnetism to leak the heat radiation damage electromagnetism stove that produces iron kitchen range face reverse heating.
Drawings
The invention is further described below with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of the first embodiment.
FIG. 2 is a cross-sectional view of the first embodiment.
Fig. 3 is a magnetic field distribution diagram of a conventional coil for electromagnetic heating.
FIG. 4 is a magnetic field distribution diagram of a coil for electromagnetic heating according to an embodiment.
Fig. 5 is a schematic structural diagram of the second embodiment.
FIG. 6 is a cross-sectional view of the second embodiment.
FIG. 7 is a magnetic field distribution diagram of a coil for electromagnetic heating according to the second embodiment.
FIG. 8 is a schematic view of the structure of the magnetic stripe of embodiment 3
The magnetic strip 1, the coil 4, the second side wall 11, the first side wall 12, the bottom wall 13, the magnetic gathering part 14, the horizontal part 141, the vertical part 142, the top end surface 1421 of the vertical part, and the top end surface 121 of the first side wall.
Detailed Description
The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Example one
The utility model provides a drum for electromagnetic heating, as shown in fig. 1, 2, magnetic stripe 1, set up coil 4 above the magnetic stripe, magnetic stripe 1 is radial distribution, and magnetic stripe 1 is 3 at least, is 6 in this embodiment, and according to actual need, the quantity of magnetic stripe can be selected to the technical personnel in the field. The coil 4 is arranged around the U-shaped part of the magnetic strip, and the magnetic strip 1 comprises a U-shaped part formed by a second side wall 11, a first side wall 12 and a bottom wall 13 and a magnetism gathering part 14 extending along the upper end part of the first side wall, wherein the magnetism gathering part is positioned on the outer periphery side of the coil. The second side wall 11 is located near the center side of the coil, and the tops of the second side wall 11 and the first side wall 12 are higher than the coil. The U-shaped part of the magnetic strip can be an integrally formed U-shaped part or a combined U-shaped part, for example, two L-shaped magnetic strips are combined to form a U shape. Even for the integrally formed E-shaped magnetic strip, it can be considered that the U-shaped magnetic strip plus the L-shaped magnetic strip, and in short, the magnetic strip including the U-shaped portion is within the protection scope of the present application.
As shown in fig. 3, the coil of the induction cooker in the prior art usually uses a U-shaped, L-shaped or other magnetic strip, taking a U-shaped magnetic strip as an example, and the magnetic field of the coil is as shown in fig. 2, the magnetic field of A, B, C points of the magnetic strip is strongest, since these 3 points can be regarded as two poles of the magnetic strip, but the magnetic field of point a is strongest because there are more homopolar magnetic strips gathered at the center of the coil, and the magnetic field of point B is second, and the magnetic field of point C is second compared to the magnetic field of the coil. Compared with the point C, the point B has the most distance from the path of the closed loop of the two poles of the magnetic force line, so that the magnetic field of the point B is stronger than that of the point C; point C is the leaked magnetic field, i.e. the magnetic field harmful to the user; in other words: when the induction cooker normally works, the point A and the point B act on the bottom of the cookware, the point C is a leaked magnetic field, and if the induction cooker works on the surface of the iron stove, reverse heating can be generated, so that a harmful magnetic field with potential safety hazards can be generated.
The magnetic field distribution of the technical scheme of the embodiment is as shown in fig. 4, and the magnetic gathering part 14 is arranged, so that the magnetic field at the point A, B, D is strongest, A, B, D acts on the bottom of the pot body, the magnetic field at the point C is weakened, the harm of a leakage magnetic field is effectively prevented, the leakage magnetic field at the point C is converted into a heating magnetic field, and the heating efficiency is further enhanced.
The magnetic gathering part comprises a horizontal part 141 arranged in parallel with the bottom wall of the magnetic strip, and the upper surface of the horizontal part 141 is flush with the top end surface 121 of the first side wall. One end of the horizontal portion 141 is connected to the first side wall 12 and the other end is located radially away from the centre of the coil. That is, one end of the magnetism gathering part close to the center of the coil is connected with the first side wall, one end of the handle far away from the center of the coil extends to the periphery of the coil, the extension lines of the midpoint of the outer end part and the midpoint of the inner end part of the magnetism gathering part penetrate through the center of the coil, and the length of the horizontal part of the magnetism gathering part of the magnetic strip is less than 30mm, preferably 12-15 mm. Because the horizontal part of gathering the magnetism portion sets up with the diapire parallel arrangement of magnetic stripe, therefore the magnetic line of force distributes more regularly, and is more even to make the pot body be heated more evenly, gather the horizontal part of magnetism portion and can not set up the overlength, if the horizontal part sets up the overlength, then D point also can produce the magnetic leakage, generally speaking, the horizontal part length is preferred 10-15 mm.
The U-shaped part of magnetic stripe and gather the magnetism portion and can adopt bonding, welding or other connected modes to link together, in order to process the aspect, the U-shaped part also can adopt integrated into one piece's mode with gathering the magnetism portion to make the U-shaped part be connected more firmly with gathering the magnetism portion, the magnetic field is more stable, and effectively reduce the processing cost.
The wire coil for electromagnetic heating can also be provided with a support (not shown in the figure), the coil is arranged above the support, the support is provided with a winding groove, the coil is arranged in the winding groove, and the bottom wall of the magnetic strip is positioned below the winding groove. The wire coil support is provided with a mounting hole, the first side wall and the second side wall of the magnetic stripe are arranged in the mounting hole, and the wire jumper area formed by wire jumper grooves can be further arranged on the support. These are common technical means in the prior art, and for example, patent application No. CN201520439462.3 discloses a wire coil structure with a bracket. The key point of the invention is that the magnetic strip is provided with a magnetic gathering part, and the structural installation relation among the coil, the bracket and the magnetic strip is more in the prior art, and the detailed discussion is not provided in the application.
Example two
As shown in fig. 5 and 6, the difference between the second embodiment and the first embodiment is that the magnetism gathering portion 14 of the magnetic stripe includes a horizontal portion 141 and a vertical portion 142 extending along the horizontal portion, and a top end surface 1421 of the vertical portion is higher than an upper surface of the horizontal portion. The height of the vertical portion is less than the height of the first side wall. Generally, the height of the vertical portion should be less than the length of the horizontal portion.
The magnetic field distribution of the second embodiment is as shown in fig. 7, because the magnetic gathering part is provided with the vertical part 142, the magnetic field is concentrated at point A, B, D, E, wherein the magnetic field at point E is slightly stronger than the magnetic field at point D, so that the magnetic field of the magnetic gathering part moves upwards, is closer to the bottom of the pot body, and the leakage magnetic field is smaller. The height of the vertical portion 142 is typically set relatively small, typically no more than 10 mm, due to the limitations of the height of the induction cooker and matching of the magnetic field of the second side wall. Meanwhile, the height of the second sidewall may be set to be slightly higher than that of the first sidewall, for example, the top end surface of the second sidewall is at the same height as that of the vertical portion 142. When the two poles of the magnetic strip A, E are not at the same height, the magnetic strip is inclined to be placed, and the pot body is horizontally placed on the induction cooker, so that the heating efficiency is low, and the heating is uneven. Through the height that sets up the second magnetic stripe, reduce the difference in height of the two poles of the earth A, E of magnetic stripe for the distribution of magnetic field in the horizontal direction is relatively more symmetrical, even, and the heating effect is better. Wherein the effect is best when the top end of the second side wall is at the same height as the top end of the vertical portion 142.
EXAMPLE III
As shown in fig. 8, the difference between the third embodiment and the first embodiment is: the magnetic strip part comprises a first side wall 12, a bottom wall 13 and a magnetic gathering part 14 extending along the upper end part of the first side wall, the magnetic gathering part 14 is positioned on the outer peripheral side of the wire coil, and the coil is wound in a space surrounded by the bottom wall 13 and the first side wall 12. Because it is not provided with a second side wall, it is more cost-effective than the solution of the first embodiment.
Of course, in the embodiments, the wire coil for electromagnetic heating of the invention may be applied to an electromagnetic oven for the sake of better visualization, but the wire coil of the invention is not limited to the use in an electromagnetic oven, and any wire coil heated by electromagnetic heating shall fall within the scope of the present application.
The embodiments are merely specific embodiments of the present invention, and the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that the present invention includes, but is not limited to, the accompanying drawings and the contents described in the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (6)
1. The utility model provides a drum for electromagnetic heating, includes coil, magnetic stripe, the magnetic stripe is radial distribution, and the coil encircles and sets up in the magnetic stripe top, its characterized in that: the magnetic strip comprises a first side wall, a bottom wall and a magnetic gathering part extending along the upper end part of the first side wall, the magnetic gathering part is positioned on the outer peripheral side of the wire coil, the magnetic strip further comprises a second side wall, the first side wall, the bottom wall and the second side wall form a U-shaped part, a coil is wound in the space of the U-shaped part, the height of the second side wall is slightly higher than that of the first side wall, the magnetic gathering part comprises a horizontal part arranged in parallel with the bottom wall of the magnetic strip, one end of the horizontal part is connected with the first side wall, and the other end of the horizontal part is arranged along the wire coil and is radially far away from the center; the magnetism gathering part also comprises a vertical part extending along the horizontal part, and the top end face of the vertical part is higher than the upper surface of the horizontal part.
2. A wire coil for electromagnetic heating according to claim 1, wherein: the upper surface of the horizontal portion is flush with the top end face of the first side wall.
3. A wire coil for electromagnetic heating according to claim 1, wherein: the second side wall is located and is close to drum center side, and the top of first side wall and second side wall all is higher than the coil.
4. A wire coil for electromagnetic heating according to claim 1, wherein: the height of the vertical portion is less than the height of the second sidewall and/or the length of the horizontal portion.
5. A wire coil for electromagnetic heating according to any one of claims 1 to 4, wherein: the U-shaped part of the magnetic strip and the magnetic gathering part are integrally formed.
6. A wire coil for electromagnetic heating according to claim 5, characterized in that: the coil winding device is characterized by further comprising a support, wherein a winding groove is formed in the upper surface of the support, the coil is arranged in the winding groove, a magnetic strip groove is formed in the lower surface of the support, and the magnetic strip is arranged in the magnetic strip groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510945164.6A CN106900097B (en) | 2015-12-17 | 2015-12-17 | Wire coil for electromagnetic heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510945164.6A CN106900097B (en) | 2015-12-17 | 2015-12-17 | Wire coil for electromagnetic heating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106900097A CN106900097A (en) | 2017-06-27 |
| CN106900097B true CN106900097B (en) | 2021-01-08 |
Family
ID=59188379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510945164.6A Active CN106900097B (en) | 2015-12-17 | 2015-12-17 | Wire coil for electromagnetic heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106900097B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107995715A (en) * | 2017-12-31 | 2018-05-04 | 乐山师范学院 | The integrated magnetic core framework and its processing technology of a kind of electromagnetic oven |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201667732U (en) * | 2010-02-08 | 2010-12-08 | 李玉青 | Magnetic strip for heating coil disc |
| CN201690637U (en) * | 2010-05-29 | 2010-12-29 | 美的集团有限公司 | Coil panel assembly of induction cooker |
| CN104768251A (en) * | 2015-04-07 | 2015-07-08 | 佛山市顺德区美的电热电器制造有限公司 | Coil panel assembly and induction cooker with same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201878356U (en) * | 2010-11-05 | 2011-06-22 | 珠海格力电器股份有限公司 | Leakage-proof magnetic strip of induction cooker and leakage-proof coil panel of induction cooker |
-
2015
- 2015-12-17 CN CN201510945164.6A patent/CN106900097B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201667732U (en) * | 2010-02-08 | 2010-12-08 | 李玉青 | Magnetic strip for heating coil disc |
| CN201690637U (en) * | 2010-05-29 | 2010-12-29 | 美的集团有限公司 | Coil panel assembly of induction cooker |
| CN104768251A (en) * | 2015-04-07 | 2015-07-08 | 佛山市顺德区美的电热电器制造有限公司 | Coil panel assembly and induction cooker with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106900097A (en) | 2017-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102077685A (en) | Induction heating cooking device and kitchen apparatus | |
| CN205196001U (en) | Coil panel and induction cooker | |
| CN106900097B (en) | Wire coil for electromagnetic heating | |
| CN204410586U (en) | Electromagnetic coil disk and there is the electric cooking appliance of this electromagnetic coil disk | |
| CN202663581U (en) | Induction cooker coil panel and induction cooker with same | |
| CN201436824U (en) | Electromagnetic wire coil and electromagnetic range using the wire coil | |
| CN204291436U (en) | Electromagnetic coil disk and there is the electric cooking appliance of this electromagnetic coil disk | |
| CN202178888U (en) | Magnetic stripe, electromagnetic wire coil and induction cooker | |
| CN201878356U (en) | Leakage-proof magnetic strip of induction cooker and leakage-proof coil panel of induction cooker | |
| CN201910943U (en) | Heating coil panel | |
| CN207219080U (en) | The electromagnetic wire coil and electromagnetic cooking appliance of a kind of electromagnetic cooking appliance | |
| CN205454136U (en) | Wire coil for electromagnetic heating | |
| CN205666983U (en) | Electromagnetic oven and coil panel | |
| CN102697375B (en) | electromagnetic induction heating rice cooker | |
| CN204306631U (en) | Electric cooking appliance | |
| CN205002177U (en) | IH electromagnetic wire coil support | |
| CN202269042U (en) | Novel induction cooker induction heating wire coil | |
| CN204335004U (en) | A kind of novel electromagnetic oven wire coil structure | |
| CN207202709U (en) | The drum and pressure cooker of a kind of pressure cooker | |
| CN108278642B (en) | Electromagnetic oven | |
| CN202310164U (en) | Inner and outer ring heating coil panel support | |
| CN202546852U (en) | Electromagnetic oven with dry combustion protection | |
| CN204795662U (en) | Electromagnetic wire reel | |
| CN204260534U (en) | Pan and electric cooker | |
| CN208113012U (en) | Coil panel component and electromagnetic heating cooking utensil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |