阅读说明：本技术 一种线圈与磁条组装配结构及电加热设备 (Coil and magnetic stripe assembly structure and electric heating equipment ) 是由 毛朝阳 于博 赵万东 孔进喜 唐文强 张健 于 2021-09-09 设计创作，主要内容包括：本发明提供一种线圈与磁条组装配结构及电加热设备,包括：线圈,呈圆形设置；磁条组,包括若干磁条,若干所述磁条设置在所述线圈上；其中,所述线圈与所述磁条组满足：m(a-0.06r)+l(0.11l-0.23r)+r(b-0.22r)+n(c+1.12r-n)≥617,其中：m代表磁条的宽度,r代表所述磁条靠近所述线圈中心的一端到线圈的中心的距离；l代表所述磁条的长度；n代表所述磁条的数量；其中,6≤a≤7,22≤b≤23,37≤c≤38。通过上述的设置方式,当线圈尺寸确定时,限定磁条数量、尺寸及放置位置,进而可以在线圈功率一定的前提下,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 coil and magnetic stripe assembly structure and electric heating equipment, comprising: a coil arranged in a circular shape; the magnetic strip group comprises a plurality of magnetic strips, and the magnetic strips are arranged on the coil; wherein the coil and the magnetic strip group meet the following conditions: m (a-0.06r) + l (0.11l-0.23r) + r (b-0.22r) + n (c +1.12r-n) ≥ 617, wherein: m represents the width of the magnetic strip, and r represents the distance from one end of the magnetic strip close to the center of the coil; l represents the length of the magnetic strip; n represents the number of the magnetic stripes; wherein a is more than or equal to 6 and less than or equal to 7, b is more than or equal to 22 and less than or equal to 23, and c is more than or equal to 37 and less than or equal to 38. Through the arrangement mode, when the size of the coil is determined, the number, the size and the placement position of the magnetic strips are limited, and then the maximum thermal efficiency can be realized on the premise that the power of the coil is fixed.)

1. The utility model provides a structure is joined in marriage with magnetic stripe group to coil which characterized in that includes:

a coil;

the magnetic strip group comprises a plurality of magnetic strips, and the magnetic strips are connected with the coils;

wherein the coil and the magnetic strip group meet the following conditions:

m (a-0.06r) + l (0.11l-0.23r) + r (b-0.22r) + n (c +1.12r-n) ≥ 617, wherein:

m represents the width value of the magnetic strip, r represents the distance value from one end of the magnetic strip close to the center of the coil; l represents a value of the length of the magnetic strip; n represents the number of the magnetic stripes;

wherein a, b and c represent constants, wherein a is more than or equal to 6 and less than or equal to 7, b is more than or equal to 22 and less than or equal to 23, and c is more than or equal to 37 and less than or equal to 8.

2. The fitting structure according to claim 1, wherein a distance from a side of the coil away from the center to the center of the coil is R, where l + R ≧ R.

3. The fitting structure according to claim 1 or 2, wherein:

m≤2r×tan(180°/n)。

4. the fitting structure according to claim 1 or 2, wherein R/R is 0.15. ltoreq. R/R.ltoreq.0.4.

5. The fitting structure according to claim 4, wherein r is 20 mm. ltoreq. r.ltoreq.45 mm.

6. The fitting structure according to claim 1, wherein 4. ltoreq. n.ltoreq.6.

7. The fitting structure according to claim 1, wherein a face of the magnetic stripe remote from the coil is provided with a projection.

8. The mounting structure according to claim 7, wherein a side of the magnetic strip adjacent to the coil is provided with an end magnetic strip, and the end magnetic strip is provided at least one end of the magnetic strip.

9. An electric heating apparatus, comprising: the coil and strip assembly of any of claims 1-8.

10. An electric heating apparatus as claimed in claim 9, wherein the electric heating apparatus is an electric rice cooker.

Technical Field

The invention relates to the technical field of electric heating equipment, in particular to a coil and 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; however, because the coil is a spiral planar coil and the distribution of the magnetic field at the bottom is not uniform, the magnetic strips need to be used as much as possible in selecting the number, size and placement position of the magnetic strips to collect the magnetic lines of force at the bottom of the pot to the maximum extent, thereby achieving the effect of improving the thermal efficiency.

Disclosure of Invention

Therefore, the invention aims to solve the technical problem of overcoming the defect of low thermal efficiency caused by poor size and placement position of the magnetic strips in the prior art.

Therefore, the invention provides an assembly structure of a coil and a magnetic strip, which comprises: a coil arranged in a circular shape; the magnetic strip group comprises a plurality of magnetic strips, and the magnetic strips are arranged on the coil; wherein the coil and the magnetic strip group meet the following conditions:

m (a-0.06r) + l (0.11l-0.23r) + r (b-0.22r) + n (c +1.12r-n) ≥ 617, wherein:

m represents the width of the magnetic strip, and r represents the distance from one end of the magnetic strip close to the center of the coil; l represents the length of the magnetic strip; n represents the number of the magnetic stripes;

wherein a is more than or equal to 6 and less than or equal to 7, b is more than or equal to 22 and less than or equal to 23, and c is more than or equal to 37 and less than or equal to 8.

According to the assembly structure provided by the invention, the distance from one side of the coil far away from the center to the center of the coil is R, wherein l + R is more than or equal to R.

The assembly structure provided by the invention has m less than or equal to 2r multiplied by tan (180 degrees/n).

In the assembly structure provided by the invention, R/R is more than or equal to 0.15 and less than or equal to 0.4.

In the assembly structure provided by the invention, r is more than or equal to 20mm and less than or equal to 45 mm.

In the assembly structure provided by the invention, n is more than or equal to 4 and less than or equal to 6.

According to the assembling structure provided by the invention, the protruding part is arranged on one surface of the magnetic strip, which is far away from the coil.

According to the assembly structure provided by the invention, the end part magnetic strip is arranged on one surface of the magnetic strip, which is close to the coil, and the end part magnetic strip is arranged at least one end of the magnetic strip.

The invention also provides an electric heating device, comprising: the invention provides an assembly structure of a coil and a magnetic strip.

The invention provides electric heating equipment, which is an electric cooker.

The technical scheme of the invention has the following advantages:

1. the invention provides a coil and magnetic stripe assembly structure, comprising: a coil arranged in a circular shape; the magnetic strip group comprises a plurality of magnetic strips, and the magnetic strips are arranged on the coil; wherein the coil and the magnetic strip group meet the following conditions:

m (a-0.06r) + l (0.11l-0.23r) + r (b-0.22r) + n (c +1.12r-n) ≥ 617, wherein: m represents the width of the magnetic strip, and r represents the distance from one end of the magnetic strip close to the center of the coil; l represents the length of the magnetic strip; n represents the number of the magnetic stripes; wherein a is more than or equal to 6 and less than or equal to 7, b is more than or equal to 22 and less than or equal to 23, and c is more than or equal to 37 and less than or equal to 8.

Through the arrangement mode, when the size of the coil is determined, the number, the size and the placement position of the magnetic strips are limited, and then the maximum thermal efficiency can be realized on the premise that the power of the coil is fixed.

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 diagram of an assembly structure of a coil and a magnetic stripe assembly provided in the present invention;

FIG. 2 is a schematic view of the structure of the magnetic stripe shown in FIG. 1;

FIG. 3 is a schematic structural diagram of another magnetic stripe provided in the present invention;

FIG. 4 is a diagram showing the trend of the function and thermal efficiency in the coil and magnetic strip assembly structure of the present invention.

Description of reference numerals:

1. a coil; 2. a magnetic strip; 3. a boss portion; 4. end portion magnetic strip.

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.

Example 1

The present embodiment provides an assembly structure of a coil and a magnetic stripe, as shown in fig. 1 and fig. 2, including:

the coil 1 is arranged in a circular shape, and in the embodiment, the coil can also be arranged in other shapes;

in particular, the coil itself is of a structure common in the prior art, is itself circular in shape, is provided with a connector for connection to a power supply and is suitable for connection to an alternating current.

The magnetic strip group comprises a plurality of magnetic strips 2, and the magnetic strips 2 are arranged on the coil; wherein the coil and the magnetic strip group meet the following conditions:

m (a-0.06r) + l (0.11l-0.23r) + r (b-0.22r) + n (c +1.12r-n) ≥ 617, wherein: m represents the width value of the magnetic strip, r represents the distance value from one end of the magnetic strip close to the center of the coil; l represents a value of the length of the magnetic strip; n represents the number of the magnetic stripes;

wherein a, b and c are constant, a is more than or equal to 6 and less than or equal to 7, b is more than or equal to 22 and less than or equal to 23, and c is more than or equal to 37 and less than or equal to 8.

In this embodiment, preferably, a is 6.78, b is 22.1, and c is 37.4.

In this embodiment, the magnetic stripe sets up to a plurality ofly, and a plurality of magnetic stripes are in regular or irregular shape and distribute on the coil. As shown in fig. 1, in this embodiment, the plurality of magnetic strips are radially disposed, and the inner end of each magnetic strip is disposed toward the center of the coil.

Through the above arrangement mode, when the coil size is determined, the number, the size and the placement position of the magnetic strips are limited, so that the maximum thermal efficiency can be realized on the premise that the coil power is certain, and through tests, after the arrangement mode is adopted, the thermal efficiency is improved to 86%.

In the national standard, the thermal efficiency of the secondary energy efficiency of an electric rice cooker of more than 1000 w is generally set to 86%. As can be seen from the content described in fig. 4, in the function provided above, through calculation of the thermal efficiencies corresponding to different function values, after the function corresponds to point a in fig. 4, that is, when the function value exceeds 617, the corresponding thermal efficiency is raised to 86%, and at the same time, as the function value continuously increases, the thermal efficiency gradually increases, that is, when the magnetic stripe is set according to the function provided in this embodiment, the requirement of the secondary energy efficiency can be fully satisfied, and at the same time, the requirement of the primary energy efficiency or even higher energy efficiency can be further satisfied by necessary adjustment.

In the assembly structure provided by the embodiment, m is less than or equal to 2r multiplied by tan (180 degrees/n), and in particular, n is less than or equal to 4 and less than or equal to 6 in the assembly structure provided by the embodiment.

In the assembly structure provided by the embodiment, R/R is more than or equal to 0.15 and less than or equal to 0.4. Specifically, in the embodiment, r is more than or equal to 20mm and less than or equal to 45 mm.

In the assembling structure provided by this embodiment, a protrusion is disposed on a side of the magnetic strip away from the coil.

As shown in fig. 3, the protrusion 3 is arranged, so that the magnetic strip can bear more magnetic flux density, when the magnetic strip is mounted on the coil, the magnetic flux density of the coil part corresponding to the protrusion 3 is higher, and at the moment, according to the gauss law, higher magnetic flux can be generated, so that the heating efficiency of the bottom of the pot can be more effectively improved; simultaneously, because the thickness of bellying position is greater than the thickness of other positions of magnetic stripe for under the inconvenient condition of magnetic stripe total volume, shift the thickness of other parts of magnetic stripe to the bellying, thereby under the unchangeable prerequisite of materials, increased the utilization efficiency of magnetic stripe self effectively.

The assembly structure that this embodiment provided, the magnetic stripe is close to the one side of coil is provided with tip magnetic stripe 4, the setting of tip magnetic stripe is in the at least one end of magnetic stripe.

Specifically, the end portion magnetic stripe 4 may be provided at an inner diameter position of the coil, an outer diameter position of the coil, or both end positions of the coil.

Through supplementary setting end portion magnetic stripe, in the use, at least one end portion magnetic stripe sets up in the inboard and/or outside position of coil, and for the coil, the density that is located the closed magnetic line of force of coil outside is less than the density that is located the closed magnetic line of force of coil inboard, through foretell setting mode for the magnetic flux density that the coil outside corresponds is less than the magnetic flux density that the coil inside corresponds, thereby can realize the make full use of to closed magnetic line of force.

In the assembly structure provided by the embodiment, the distance from one side of the coil far away from the center to the center of the coil is R, wherein l + R is larger than or equal to R.

Specifically, in this embodiment, the coil itself may be directly circular, and the radius of any position on the outer edge of the coil is R at this time; as a variation, the coil may be arranged in a regular polygon, such as a square, a regular hexagon, etc., where R is adjusted within a certain range.

In this embodiment, coil self is circular setting, when not setting up the tip magnetic stripe on the magnetic stripe, this moment l + R ═ R, when setting up tip magnetic stripe 4, because tip magnetic stripe 4 self has certain thickness, consequently the one end of tip magnetic stripe will be outstanding to the outside of coil, this moment l + R > R.

Example 2

The present embodiment provides an electric heating apparatus, including the coil and magnetic stripe assembly structure provided in embodiment 1.

In this embodiment, coil and magnetic stripe group configuration 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 apparatus is an induction cooker, the coil and entry assembly structure provided in embodiment 1 is provided inside the housing. When electrical heating equipment is IH insulating pot or IH soybean milk machine, coil and magnetic stripe equipment configuration structure set up in treating the heating member below, and electrical 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 electrical heating body inside.

In this embodiment, the electric heating device is an electric cooker. Specifically, electric rice cooker includes the casing, is provided with interior pot in the casing, and coil and magnetic stripe group assembly structure set up in interior pot, is provided with the inner bag in the top of coil, carries out the culinary art operation of food through the inner bag.

By adopting the coil and magnetic strip assembly structure provided in embodiment 1, the thermal efficiency of the whole electric heating device can be sufficiently improved, thereby effectively reducing the overall energy consumption while ensuring normal processing.

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 therefrom are within the scope of the invention.