阅读说明：本技术 一种磁条、磁条装配结构和电加热设备 (Magnetic stripe, magnetic stripe assembly structure and electrical heating equipment ) 是由 于博 毛朝阳 张健 赵万东 孔进喜 唐文强 于 2021-08-27 设计创作，主要内容包括：本发明提供的一种磁条、磁条装配结构和电加热设备,包括沿长度方向连接设置的第一磁体件和第二磁体件,所述第一磁体件的宽度大于所述第二磁体件；其中,所述磁条满足：a(3.3a－2.3b－8.3)+b(－6.3b－0.3l+500)+l(－0.5l+1.7a+6.4)≥4000,其中：所述第一磁体件的宽度为a,所述第一磁体件的长度为l,所述第二磁体的宽度为b。这样设置,可以有效地磁条上第一磁体件和第二磁体件间的尺寸和面积关系,进而可以实现最大的热效率,通过试验,当采用上述的设置方式后,本发明中的热效率有所提高。(The invention provides a magnetic stripe, a magnetic stripe assembly structure and electric heating equipment, which comprise a first magnet piece and a second magnet piece which are connected and arranged along the length direction, wherein the width of the first magnet piece is greater than that of the second magnet piece; wherein the magnetic strip satisfies: a (3.3 a-2.3 b-8.3) + b (-6.3 b-0.3 l +500) + l (-0.5 l +1.7a +6.4) ≥ 4000, wherein: the width of the first magnet piece is a, the length of the first magnet piece is l, and the width of the second magnet is b. By the arrangement, the size and area relation between the first magnet piece and the second magnet piece on the magnetic strip can be effectively realized, and further, the maximum thermal efficiency can be realized.)

1. A magnetic stripe, comprising:

the magnet comprises a first magnet piece (21) and a second magnet piece (22) which are connected along the length direction, wherein the width of the first magnet piece (21) is larger than that of the second magnet piece (22);

wherein the magnetic strip (2) satisfies:

a (3.3 a-2.3 b-8.3) + b (-6.3 b-0.3 l +500) + l (-0.5 l +1.7a +6.4) ≥ 4000, wherein:

the width of the first magnet piece (21) is a, the length of the first magnet piece (21) is l, and the width of the second magnet is b and the unit is mm.

2. The magnetic strip according to claim 1, wherein the length of the magnetic strip (2) is L, wherein L is less than or equal to 0.5L.

3. Magnetic strip according to claim 1 or 2, characterized in that a ≧ 1.2 b.

4. A magnetic stripe assembly structure, comprising:

a coil (1);

a number of magnetic strips according to any one of claims 1-3, said strips (2) being arranged on said coil (1).

5. A magnetic stripe assembling structure according to claim 4, characterized in that the distance between the end of said magnetic stripe (2) and the center of said coil (1) is r, wherein r is more than or equal to 20 and less than or equal to 45.

6. A magnetic stripe assembling structure according to claim 5, characterized in that the length of said magnetic stripe (2) is L, the radius of said coil (1) is R, L + R ≧ R.

7. A magnetic stripe assembling structure according to claim 5 or 6, wherein the number of magnetic stripes (2) distributed on said coil (1) is n, wherein:

a≤2r×tan(180°/n)。

8. a magnetic stripe assembling structure according to claim 7, wherein n is more than or equal to 4 and less than or equal to 6.

9. A magnetic stripe assembling structure according to claim 4, wherein said magnetic stripe (2) further comprises:

a first end magnetic strip (23) arranged at one end of the first magnet piece (21) towards the center of the coil (1);

second tip magnetic stripe (24), set up and be in on the second magnet piece (22) dorsad the one end at coil (1) center is suitable for the cooperation first tip magnetic stripe (23), with the spacing joint of coil (1).

10. An electric heating apparatus, comprising: a magnetic stripe assembly structure as claimed in any one of claims 4 to 9.

Technical Field

The invention relates to the technical field of electric heating equipment, in particular to a magnetic stripe, a magnetic stripe assembly structure and electric heating equipment.

Background

The IH rice cooker is a cooking appliance that heats food by the principle of electromagnetic induction. The working principle is that current flows through the magnet exciting coil to generate an alternating magnetic field surrounding a coil wire, when a magnetic metal pot is placed on the stove surface, magnetic lines of force pass through the pot body to generate eddy current, and eddy current heat is formed to heat food in the pot. The IH electric cooker has the advantages of fast temperature rise, high heat efficiency, accurate temperature control and the like.

In order to realize better heating effect and improve the utilization efficiency of magnetic lines of force, the magnetic stripe is added under the coil in IH heating, the magnetic stripe has high magnetic conductivity, and the magnetic lines of force diffused by the coil can be gathered to increase the magnetic field intensity acting on the pot body, thereby increasing the heating efficiency. The strip-shaped magnetic strips are added to most of the existing products, are radially distributed below the coil and span the width of the coil, and have the advantages of easy sintering and forming and easy assembly; because the coil is a spiral planar coil, however, the bottom magnetic field distribution is not uniform,

in the prior art, in order to improve the heat efficiency, the magnetic strip in the area with smaller magnetic flux density is properly reduced, and the reduced magnetic strip volume is increased to the area with large magnetic flux density, so that the intensity of the magnetic field of the pot body is ensured to be increased under the same magnetic strip volume. However, the arrangement reduces the volume of the peripheral magnetic stripe, which causes more magnetic lines of force to leak out from the periphery, and when the leakage number of the magnetic lines of force of the periphery exceeds the number of the magnetic lines of force increased from the inner side, the heating effect will be poor.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the defect of insufficient thermal efficiency of the non-uniform width magnetic strip in the prior art, and provide a magnetic strip, a magnetic strip assembly structure and an electric heating device.

The invention provides a magnetic stripe, comprising:

the first magnet piece and the second magnet piece are connected along the length direction, and the width of the first magnet piece is larger than that of the second magnet piece;

wherein the magnetic strip satisfies:

a (3.3 a-2.3 b-8.3) + b (-6.3 b-0.3 l +500) + l (-0.5 l +1.7a +6.4) ≥ 4000, wherein:

the width of the first magnet piece is a, the length of the first magnet piece is l, and the width of the second magnet piece is b, and the unit is mm.

The length of the magnetic strip is L, wherein L is less than or equal to 0.5L.

a≥1.2b。

The invention also provides a magnetic stripe assembly structure, comprising: a coil; the magnetic strips are arranged on the coil.

The distance between the end part of the magnetic strip and the center of the coil is r, wherein r is more than or equal to 20 and less than or equal to 45.

The length of the magnetic strip is L, the radius of the coil is R, and L + R is more than or equal to R.

The number of the magnetic strips distributed on the coil is n, wherein: a is less than or equal to 2r multiplied by tan (180 DEG/n).

4≤n≤6。

The magnetic stripe still includes: a first end portion magnetic stripe provided at one end of the first magnet member toward the center of the coil; the second tip magnetic stripe sets up dorsad on the second magnet spare the one end at coil center is suitable for the cooperation first tip magnetic stripe, with the spacing joint of coil.

The present invention also provides an electric heating apparatus comprising: the magnetic stripe assembling structure is provided.

The technical scheme of the invention has the following advantages:

1. the invention provides a magnetic stripe assembly structure, which comprises: the magnet comprises a first magnet piece (21) and a second magnet piece (22) which are connected along the length direction, wherein the width of the first magnet piece (21) is larger than that of the second magnet piece (22); wherein the magnetic strip (2) satisfies:

a (3.3 a-2.3 b-8.3) + b (-6.3 b-0.3 l +500) + l (-0.5 l +1.7a +6.4) ≥ 4000, wherein: the width of the first magnet piece (21) is a, the length of the first magnet piece (21) is l, and the width of the second magnet is b and the unit is mm.

By the arrangement, the size and area relation between the first magnet piece and the second magnet piece on the magnetic strip can be effectively realized, and further, the maximum thermal efficiency can be realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of a magnetic stripe assembly structure provided in an embodiment of the present invention;

FIG. 2 is a schematic view of the configuration of a magnetic strip of the magnetic strip assembly configuration shown in FIG. 1;

FIG. 3 is a schematic perspective view of a magnetic strip of the magnetic strip assembly configuration of FIG. 1 and other embodiments of magnetic strips;

FIG. 4 is a graph of the variation trend of the parameter function and efficiency of the magnetic stripe according to the embodiment of the present invention;

description of reference numerals:

1-a coil; 2-magnetic strip; 21-a first magnet piece; 22-a second magnet piece; 23-a first end magnetic stripe; 24-second end magnetic stripe.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 to 4, the present embodiment provides a magnetic stripe, where the magnetic stripe 2 includes a first magnet member 21 and a second magnet member 22 arranged in a stripe shape, the first magnet member 21 and the second magnet member 22 are arranged in a connected manner along respective length directions, the width of the first magnet member 21 is greater than that of the second magnet member 22, and specifically, in the present embodiment, the magnetic stripe 2 is arranged in a "T" shape. Wherein, magnetic stripe 2 satisfies:

a (3.3 a-2.3 b-8.3) + b (-6.3 b-0.3 l +500) + l (-0.5 l +1.7a +6.4) ≥ 4000, wherein: the width of the first magnet piece 21 is a, the length of the first magnet piece 21 is l, the width of the second magnet is b, and the value unit of each length parameter is millimeter in the embodiment.

Wherein a is more than or equal to 12 and less than or equal to 30, b is more than or equal to 10 and less than or equal to 25, and l is more than or equal to 8 and less than or equal to 30. In this embodiment, preferably, a is 18, b is 10, and l is 10.

In the embodiment, the length of the magnetic strip 2 is L, wherein L is less than or equal to 0.5L, and a is more than or equal to 1.2 b.

The embodiment also provides a magnetic strip assembling structure, which comprises a coil 1 and a plurality of magnetic strips 2.

The coil 1 is arranged in a circular shape and is provided with a connector connected with a power supply and is suitable for being connected with a power supply.

The plurality of magnetic strips 2 are arranged on the coil 1 and distributed in a regular or irregular shape. In this embodiment, be radial setting between a plurality of magnetic stripes 2, the length direction of every magnetic stripe 2 extends, crosses the center of line circle 1.

By the arrangement, the size and area relationship between the first magnet piece 21 and the second magnet piece 22 on the magnetic strip 2 can be effectively realized, and then the maximum thermal efficiency can be realized on the premise that the power of the coil 1 is constant.

In addition, the distance between the end part of the magnetic strip 2 and the center of the coil 1 is r, wherein r is more than or equal to 20mm and less than or equal to 45 mm. The arrangement avoids the magnetic stripe 2 from occupying the arrangement space of the central temperature sensing bulb of the coil 1, and the heating effect of the center of the coil 1 can be ensured.

Furthermore, the length of the magnetic strip 2 is L, the radius of the coil 1 is R, and L + R is larger than or equal to R, so that the coil 1 is ensured to be in the extension range of the magnetic strip 2. In addition, when the second end portion magnetic stripe 24 is not disposed on the magnetic stripe 2, l + R is R, and when the end portion magnetic stripe 24 is disposed, since the end portion magnetic stripe 24 itself has a certain thickness, one end of the end portion magnetic stripe 2 protrudes to the outside of the coil 1, and l + R > R.

In this embodiment, the number of the magnetic strips 2 distributed on the coil 1 is n, wherein: a is less than or equal to 2r multiplied by tan (180 degrees/n), n is less than or equal to 4 and less than or equal to 6, so that the interference of the first magnet parts 21 on the magnetic stripes 2 is avoided, and the spaced arrangement of the first magnet parts 21 on each magnetic stripe 2 is ensured.

The magnetic strip 2 further comprises a first end magnetic strip 23 and a second end magnetic strip 24. A first end magnetic stripe 23 is arranged at one end of the first magnet piece 21 towards the center of the coil 1; the second end portion magnetic stripe 24 is arranged at one end, back to the center of the coil 1, of the second magnet piece 22 and is suitable for being matched with the first end portion magnetic stripe 23 to be in limiting clamping connection with the coil 1. As an alternative embodiment, the first end portion magnetic stripe 23 and the second end portion magnetic stripe 24 may not be provided.

In this embodiment, the first magnet piece 21 and the second magnet piece 22 are equal in thickness, and as an alternative embodiment, there may be a difference in thickness between the first magnet piece 21 and the second magnet piece 22.

The embodiment also provides electric heating equipment which comprises the magnetic strip assembling structure.

In this embodiment, coil 1 and magnetic stripe assembly structure can use under the electromagnetic heating scene of difference, and electric heating equipment self can be electromagnetism stove, IH insulating pot, IH soybean milk machine etc.. Correspondingly, when the electric heating equipment is an induction cooker, the coil 1 and magnetic strip assembly structure is arranged inside the shell. When electric heating equipment is IH insulating pot or IH soybean milk machine, coil 1 sets up in treating the heating member below with magnetic stripe 2 assembly structure, and electric heating body self adopts metal material to make, like stainless steel etc. can place edible material that multiple needs such as clear water, beans, rice, cereal heat in electric heating body inside.

In this embodiment, the electric heating device is an electric pressure cooker. Specifically, the electric pressure cooker comprises a shell, an inner pot is arranged in the shell, a magnetic strip assembly structure is arranged in the inner pot, an inner container is arranged above a coil 1, a plurality of magnetic strips 2 are arranged below the coil 1, and cooking operation of food is carried out through the inner container.

Through adopting the magnetic stripe assembly structure that above-mentioned provided, can fully improve whole electrical heating equipment's thermal efficiency to when guaranteeing normal processing, reduce holistic energy consumption effectively.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.