CN204733405U - Magnetic strip of induction cooker and induction cooker - Google Patents
Magnetic strip of induction cooker and induction cooker Download PDFInfo
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- CN204733405U CN204733405U CN201520526352.0U CN201520526352U CN204733405U CN 204733405 U CN204733405 U CN 204733405U CN 201520526352 U CN201520526352 U CN 201520526352U CN 204733405 U CN204733405 U CN 204733405U
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- 230000006698 induction Effects 0.000 title claims description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
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- 238000010586 diagram Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- General Induction Heating (AREA)
Abstract
The utility model provides an electromagnetism stove magnetic stripe and electromagnetism stove, this electromagnetism stove magnetic stripe's magnetic stripe main part include interior marginal end and outer marginal end, the outer fringe is served and is provided with two at least first bosss along electromagnetism stove coil panel circumferencial direction, has the interval between two adjacent first bosss. The utility model provides an electromagnetism stove magnetic stripe sets up a plurality of bosss along electromagnetism stove coil panel circumferencial direction interval through the outer fringe end in the magnetic stripe main part, can make the magnetic line of force produce regional area increase, has increased the effective utilization area of magnetic stripe promptly, effectively promotes the heating efficiency of electromagnetism stove.
Description
Technical Field
The utility model relates to an electromagnetism stove technique especially relates to an electromagnetism stove magnetic stripe and electromagnetism stove, belongs to household electrical appliances manufacturing technical field.
Background
The induction cooker utilizes the electromagnetic induction principle to generate eddy current to heat a cooker, a coil panel is widely researched as a core component of the induction cooker, and the performance of the coil panel directly influences the quality of the whole product.
The coil disk generally includes a disk tray, a magnetic strip, and a coil. The heating efficiency of the induction cooker depends on the utilization rate of the magnetic field by the cookware and the effective utilization area of the magnetic strip of the induction cooker. The magnetic stripe on the coil panel of the existing induction cooker is a square or fan-shaped magnetic stripe, the magnetic stripe is not beneficial to reducing the magnetic resistance of magnetic force lines, and the effective utilization area of the magnetic stripe is smaller, so that the heating efficiency of the induction cooker is influenced.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides an electromagnetism stove magnetic stripe and electromagnetism stove can guide the magnetic line of force more and pass the pan, increase heating area to can improve the heating efficiency of electromagnetism stove.
The embodiment of the utility model provides an electromagnetism stove magnetic stripe, magnetic stripe main part include interior marginal end and outer marginal end, the outer fringe is served and is provided with two at least first bosss along electromagnetism stove coil panel circumferencial direction, has the interval between two adjacent first bosss.
In an embodiment of the present invention, the width of the magnetic stripe main body gradually increases from the inner edge end to the outer edge end; or the width of the magnetic strip main body is unchanged from the inner edge end to the outer edge end.
In an embodiment of the present invention, the outer edge is an arc concentric with the coil panel of the induction cooker.
In an embodiment of the present invention, the section parallel to the magnetic stripe main body in the first boss is a section of a circular ring, and the outer side surface of the first boss is flush with the outer edge end.
In an embodiment of the present invention, the inner edge end is provided with a second boss.
In an embodiment of the present invention, at least one third boss is further disposed between the inner edge end and the outer edge end.
In an embodiment of the present invention, at least two third bosses are further disposed between the inner edge end and the outer edge end, the at least two third bosses are disposed along a circumferential direction of the coil panel of the electromagnetic oven, and a space exists between two adjacent third bosses.
In an embodiment of the present invention, the interval between two adjacent bosses in the same circumferential direction is 2-5 mm.
In an embodiment of the present invention, the length of the boss along the circumferential direction in the same circumferential direction is 6 to 8 times of the interval between two adjacent bosses.
The embodiment of the utility model also provides an induction cooker, which comprises a shell, a control circuit, a radiator and a coil panel; the shell comprises a heating panel and a control panel, and the coil panel is arranged below the heating panel; the coil panel comprises a tray frame, a coil and a plurality of the electromagnetic oven magnetic strips; the coil is installed on the disk rack, and the magnetic strips distributed in a radial shape are embedded in the disk rack.
Based on the above, the utility model provides an electromagnetism stove magnetic stripe and electromagnetism stove sets up a plurality of bosss through the outer marginal end at the magnetic stripe main part along electromagnetism stove coil panel circumferencial direction interval, can set up and bottom of a boiler vertically route for the magnetic field that heating coil produced, rectifies the magnetic line of force for the magnetic line of force that the coil panel response produced is more perpendicular with the bottom of a boiler, effectively reduces the magnetic resistance of magnetic line of force, improves the pan to the utilization ratio in magnetic field, thereby promotes the heating efficiency of electromagnetism stove. Meanwhile, due to the fact that the bosses are arranged at intervals, the area of a magnetic line generating area can be increased, the effective utilization area of the magnetic strip is increased, and the heating efficiency of the induction cooker is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the working principle of an induction cooker;
fig. 2 is a schematic structural diagram of a magnetic stripe of an induction cooker according to an embodiment of the present invention;
fig. 3 is a schematic structural view of another magnetic stripe of an induction cooker according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a coil panel of an induction cooker according to an embodiment of the present invention.
Description of reference numerals:
1: a pot; 2: magnetic lines of force; 3: a heating coil;
m: a magnetic strip; m1: a magnetic stripe main body; m11: an inner edge end;
M12: an outer edge end; m13: a first boss; m14: a second boss;
M15: a third boss; a: a coil; c: a tray frame;
S1: the first boss is parallel to the section of the magnetic stripe main body; s2: the lateral surface of first boss.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
The electromagnetic oven heats a pot by generating eddy current by utilizing the principle of electromagnetic induction, and fig. 1 is a schematic diagram of the working principle of the electromagnetic oven. The working process is as follows: the heating coil 3 generates a changing current by controlling the switch tube, the changing current generates a magnetic field, and when the pot 1 made of effective magnetic conductive metal is placed in the magnetic field, the bottom of the pot cuts the magnetic line of force 2 to form a loop current which is called as a vortex.
According to Faraday's law of electromagnetic induction, when part of conductor of closed loop makes motion of cutting magnetic induction line in magnetic field, the conductor will beAn electric current is generated, which essentially generates an induced electromotive force due to the change in the magnetic flux. If the closed loop is a coil with N turns, the induced electromotive force generated can be expressed as:where ε is the induced electromotive force generated, N is the number of turns of the coil, Δ Φ is the amount of change in the amount of magnetic flux passing through the loop, Δ t is the time taken for the change to occur, B is the magnetic induction of the magnetic field, and S is the cross-sectional area of the magnetic flux passing through the loop. Based on the above formula, the magnitude of the induced electromotive force ∈ is critically dependent on the amount of change in magnetic flux.
Therefore, the heating efficiency of the electromagnetic oven and the radiation intensity of the magnetic field depend on the utilization rate of the magnetic field by the pot, namely the effective area of the magnetic line of force passing through the pot. In order to improve the utilization rate of a magnetic field generated by the coil panel of the induction cooker and further improve the energy efficiency, the coil panel of the induction cooker is generally designed to be provided with radial ferrite magnetic stripes which take the center of the coil panel as the center and are arranged below a heating coil, so that the propagation of the magnetic field is guided, and the utilization rate of the magnetic field is improved.
Through experimental simulation, from looking down the direction of whole coil panel, the magnetic line of force that heating coil produced is an approximate regular polygon through the guide of magnetic stripe, and this regular polygon is the region that can be used for heating the pan. Under the condition that the diameter of the coil and the radial length of the magnetic strip are fixed, the radius of a circumscribed circle of the regular polygon generating the magnetic force line area is fixed. The heating area of the induction cooker can be increased if the area of the regular polygon can be increased.
Therefore, the utility model provides a magnetic stripe of a forked electromagnetic oven. Fig. 2 is a schematic view of a structure of an electromagnetic oven magnetic stripe provided by an embodiment of the present invention, as shown in fig. 2, the main body M of the electromagnetic oven magnetic stripe M provided by this embodiment1Including an inner edge end M11And outer edge end M12And outer edge end M12At least two first bosses M are arranged along the circumferential direction of the coil panel of the induction cooker13Two adjacent first bosses M13BetweenThere is a gap.
This embodiment is for the magnetic stripe main body M1The width of (D) is not particularly limited, and may be from the inner peripheral end M11To the outer edge end M12The width is consistent, and can also be from the inner edge end M11To the outer edge end M12And gradually increases. Preferably, the magnetic stripe body M1From the inner edge end M11To the outer edge end M12Gradually increasing, which is arranged to facilitate the convergence of the magnetic field from the lower part to the upper part.
This embodiment is for the magnetic stripe main body M1The shape of (A) is not particularly required, and may be a rectangular strip or a fan-shaped strip, or may be a strip having a width from the inner edge end M11To the outer edge end M12Gradually increasing irregular shapes. Preferably, the magnetic stripe body M1Is in the shape of an irregular sector as shown in fig. 2, i.e. the inner edge M of the magnetic strip body11And outer edge end M12The connecting line between them is also an arc with a certain radian. In addition, as a preferable embodiment of the present embodiment, the magnetic stripe main body M1Outer edge end M of12Is a circular arc concentric with the coil panel of the induction cooker. The design can not only cover the coil as much as possible, but also reduce the magnetic leakage of the coil so as to reduce the radiation, and is green and environment-friendly; meanwhile, magnetic lines of force generated by the coils can be guided to penetrate through the cookware more, so that the utilization rate of the magnetic field is improved, and the energy efficiency is improved; and the coil disc can be conveniently spliced in a radial manner, so that the heating is more uniform.
This embodiment is for the first boss M13The shape of (A) is also not particularly required, and can be a cuboid, a prism, a cylinder and the like. Preferably, the first boss M13Is in the shape of a three-dimensional fan ring, namely a section S of the first boss parallel to the magnetic stripe main body1Is a section of circular ring, and the outer side surface S of the first boss2And outer edge end M12Flush.
In this embodiment, the size of the first boss and two adjacent first bosses M13The interval therebetween is also not particularly required. Illustratively, two adjacent first bosses M13The spacing between may be 2-5 mm. It is preferable thatFirst boss M13The length of the coil panel of the induction cooker in the circumferential direction can be 6-8 times of the interval between every two adjacent first bosses.
The electromagnetism stove magnetic stripe that this embodiment provided sets up a plurality of bosss along electromagnetism stove coil panel circumferencial direction interval through the outer fringe end at the magnetic stripe main part, can set up and the bottom of a boiler vertically route for the magnetic field that heating coil produced, rectify the magnetic line of force for the magnetic line of force that the coil panel response produced is more perpendicular with the bottom of a boiler, effectively reduces the magnetic resistance of magnetic line of force, improves the pan to the utilization ratio in magnetic field, thereby promotes the heating efficiency of electromagnetism stove. Simultaneously, because a plurality of bosss interval sets up, can make the regional regular polygon limit of magnetic force line production increase, just also increased the regional regular polygon's of production magnetic force line area, increased the effective utilization area of magnetic stripe promptly, effectively promote the heating efficiency of electromagnetism stove.
In addition, compare and directly increase many magnetic stripes below the coil, the utility model provides a forked type electromagnetism stove magnetic stripe not only can rectify the magnetic line of force, save material moreover, the installation of being convenient for can effectively improve production efficiency.
Fig. 3 is a schematic structural view of another electromagnetic oven magnetic stripe according to an embodiment of the present invention. As shown in fig. 3, the magnetic stripe of the induction cooker provided in this embodiment may be further provided on a magnetic stripe main body M on the basis of the embodiment shown in fig. 21Inner edge end M of11Is provided with a second boss M14。
Furthermore, the magnetic strip main body M can be arranged on a magnetic strip main body M1Inner edge end M of11And outer edge end M12At least one third boss M is arranged between15。
This embodiment is for the second boss M14And a third boss M15The shape of (2) is not particularly limited. As a preferred embodiment, the second boss M14And a third boss M15The three-dimensional fan ring concentric with the first boss is arranged to facilitate the coiling of the coil.
It should be noted that, when the magnetic stripe main body M1Inner edge end M of11And outer edge end M12Two or more third bosses M are arranged between15In the process, the magnetic lines are uniformly distributed along the radius direction of the coil panel of the induction cooker, so that the vertical paths of the magnetic lines are uniformly distributed, and the induction cooker is heated more uniformly.
In addition, when the magnetic stripe main body M is used1Inner edge end M of11And outer edge end M12Two or more third bosses M are arranged between15In the process, the third bosses M can also be arranged along the circumferential direction of the coil panel of the induction cooker and are adjacent to each other15With a space in between. That is, the arcs formed by the third bosses and the arcs formed by the first bosses are concentric with the coil panel of the induction cooker. Illustratively, two adjacent third bosses M15The interval between the first boss and the second boss can be 2-5mm, and the third boss M15The length along the circumferential direction is preferably 6-8 times of the interval between two adjacent third bosses.
In addition, the magnetic stripe main body M1And the above-mentioned boss M13、M14、M15Can be respectively sintered and respectively welded on the magnetic stripe main body M during installation1At the corresponding position of (2). Magnetic stripe main body M1The boss and the above-mentioned boss can also adopt an integral structure, and can be integrally formed by sintering. Preferably, the magnetic stripe body M1With boss formula structure as an organic whole, adopt the integral type structure, can reduce the mould, make processing more convenient, the magnetic stripe that adopts the integral type simultaneously can make the magnetic resistance of magnetic stripe reduce.
Fig. 4 is a schematic structural diagram of an induction cooker coil panel according to an embodiment of the present invention, and it can be understood that fig. 4 shows a split structure of the induction cooker coil panel. As shown in fig. 4, the coil panel of the induction cooker provided by the present embodiment includes: a tray C, a coil a, and a plurality of magnetic strips M provided in the embodiment shown in fig. 2 or 3. The coil A is mounted on the tray frame C, and a plurality of magnetic strips M distributed in a radial shape are embedded in the tray frame C, and for example, the magnetic strips M can be fixed in the tray frame C through epoxy resin or hot pressing.
Since the coil panel of the induction cooker provided by this embodiment has a plurality of magnetic strips M provided in the embodiments shown in fig. 2 or fig. 3 and distributed radially, the utilization rate of the magnetic field generated by the coil panel of the induction cooker can be improved, and the implementation principle thereof is not described herein again.
The utility model also provides an electromagnetism stove, the coil panel that the embodiment that includes casing, control circuit, radiator and figure 4 provided. Wherein, the casing includes heating panel and control panel, and the coil panel setting is under heating panel.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides an electromagnetism stove magnetic stripe, its characterized in that, the magnetic stripe main part includes interior marginal end and outer marginal end, the outer marginal is served and is provided with two at least first bosss along electromagnetism stove coil panel circumferencial direction, has the interval between two adjacent first bosss.
2. The magnetic strip of claim 1, wherein the width of the magnetic strip body increases from the inner edge end to the outer edge end; or,
the width of the magnetic strip main body is unchanged from the inner edge end to the outer edge end.
3. The magnetic stripe of claim 2 wherein said outer edge end is an arc concentric with the induction hob coil disc.
4. The magnetic strip of claim 3, wherein the cross section of the first boss parallel to the magnetic strip body is a section of a circular ring, and the outer side surface of the first boss is flush with the outer edge end.
5. The magnetic stripe according to any one of claims 1 to 4, wherein the inner edge end is provided with a second boss.
6. A magnetic strip according to any one of claims 1 to 4, wherein at least one third boss is further provided between the inner edge end and the outer edge end.
7. The magnetic strip according to any one of claims 1 to 4, wherein at least two third bosses are further disposed between the inner edge end and the outer edge end, the at least two third bosses are disposed along a circumferential direction of the induction cooker coil panel, and a space is provided between two adjacent third bosses.
8. The magnetic stripe according to claim 7, wherein the interval between two adjacent bosses in the same circumferential direction is 2-5 mm.
9. The magnetic stripe according to claim 8, wherein the length of the bosses in the same circumferential direction in the circumferential direction is 6 to 8 times the interval between two adjacent bosses.
10. An induction cooker comprises a shell, a control circuit, a radiator and a coil panel; the shell comprises a heating panel and a control panel, and the coil panel is arranged below the heating panel; the coil disc comprises a disc frame, a coil and a plurality of magnetic strips according to any one of claims 1 to 9; the coil is installed on the disk rack, and the magnetic strips distributed in a radial shape are embedded in the disk rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520526352.0U CN204733405U (en) | 2015-07-17 | 2015-07-17 | Magnetic strip of induction cooker and induction cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520526352.0U CN204733405U (en) | 2015-07-17 | 2015-07-17 | Magnetic strip of induction cooker and induction cooker |
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| Publication Number | Publication Date |
|---|---|
| CN204733405U true CN204733405U (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520526352.0U Active CN204733405U (en) | 2015-07-17 | 2015-07-17 | Magnetic strip of induction cooker and induction cooker |
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| CN (1) | CN204733405U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105120544A (en) * | 2015-08-20 | 2015-12-02 | 阮保清 | Cyclonic IH electromagnetic heating wire tray |
| 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 |
-
2015
- 2015-07-17 CN CN201520526352.0U patent/CN204733405U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105120544A (en) * | 2015-08-20 | 2015-12-02 | 阮保清 | Cyclonic IH electromagnetic heating wire tray |
| 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 |
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