阅读说明：本技术 一种电磁加热器具 (Electromagnetic heating appliance ) 是由 刘怀灿 毛朝阳 于博 孔进喜 唐文强 张长春 于 2021-09-03 设计创作，主要内容包括：本发明涉及电磁加热技术领域,具体涉及一种电磁加热器具,该电磁加热器具包括：锅体；第一磁条,设置在所述锅体的底部；线圈,设置在所述第一磁条与所述锅体之间；其中,所述线圈与所述锅体的底部之间的间距为d1,所述第一磁条与所述锅体的底部之间的间距为d2,如此设置,通过仿真实验以及仿真分析,当所述线圈与所述锅体的底部之间的间距与所述第一磁条与所述锅体的底部之间的间距之间的比例关系在8/21至3/4之间,相较于传统的电磁加热器具而言,能够保证电磁加热器具在功率值最大时,提高电磁加热器具的磁热转换效率,从而使得热效率较高。(The invention relates to the technical field of electromagnetic heating, in particular to an electromagnetic heating appliance, which comprises: a pan body; the first magnetic strip is arranged at the bottom of the pot body; the coil is arranged between the first magnetic strip and the pot body; wherein the distance between the coil and the bottom of the pan body is d1, the distance between the first magnetic strip and the bottom of the pan body is d2, so set up, through simulation experiment and simulation analysis, work as the coil with the interval between the bottom of the pot body with first magnetic stripe with the proportional relation between the interval between the bottom of the pot body is between 8/21 to 3/4, compare in traditional electromagnetic heating utensil, can guarantee that electromagnetic heating utensil when the power value is the biggest, improve electromagnetic heating utensil's magnetic-thermal conversion efficiency to make the thermal efficiency higher.)

1. An electromagnetic heating appliance, comprising:

a pan body (1);

the first magnetic stripe (2) is arranged at the bottom of the pot body (1);

the coil (3) is arranged between the first magnetic strip (2) and the pot body (1);

wherein, the distance between the upper surface of the coil (3) and the bottom of the pot body (1) is d1, the distance between the upper surface of the first magnetic strip (2) and the bottom of the pot body (1) is d2, and the d1 and the d2 satisfy the relation:the units of d1 and d2 are mm.

2. The electromagnetic heating appliance according to claim 1, wherein the total thickness of the coil (3) is h, the unit of h is mm, and the d1, d2 and h satisfy the relation: d₂≥d₁+h。

3. The electromagnetic heating appliance according to claim 2,

4. an electromagnetic heating appliance as claimed in any one of claims 1 to 3, wherein d1 has a value in the range of 5mm to 15 mm.

5. The electromagnetic heating appliance according to claim 4, wherein d1 has a value in the range of 7mm to 12 mm.

6. An electromagnetic heating appliance as claimed in any one of claims 1 to 3, wherein d2 has a value in the range of 9mm to 27 mm.

7. The electromagnetic heating appliance according to claim 6, wherein d2 has a value in the range of 14mm to 24 mm.

8. An electromagnetic heating appliance as claimed in claim 2 or 3, wherein h is between 4mm and 8 mm.

9. The electromagnetic heating appliance according to any of claims 1 to 3, wherein said d1 and d2 further satisfy the following relation:

10. the electromagnetic heating appliance according to any one of claims 1 to 3, wherein the electromagnetic heating appliance is any one of an electric rice cooker, an induction cooker, an IH electric kettle, and an IH soymilk maker.

Technical Field

The invention relates to the technical field of electromagnetic heating, in particular to an electromagnetic heating appliance.

Background

IH heating 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, and when a magnetic metal pot is placed on a stove surface, a magnetic induction wire penetrates through the pot body to generate vortex, so that vortex heat is formed to heat food in the pot. Cooking utensil with IH heating function, its structure mainly comprises three parts: the pot body, coil and magnetic stripe, and its relative position is from top to bottom, and wherein the coil is used for producing magnetism and feels the line, and the magnetic stripe is used for producing magnetism to feel the line tied in a bundle, and the pot body cuts magnetism and feels the line, and the pot body cutting's magnetism feels the line more, and the calorific capacity of the pot body is big more, and the magnetism heat conversion efficiency is also higher.

The magnetic field generated by the coil is closer to the coil and stronger, so that the space between the coil and the pot body is reduced to play a role in improving the induction magnetic field of the pot body, namely, the heat efficiency is improved. And the closer the distance between the magnetic strip and the pot body is, the more the magnetic induction lines are clustered, or the more the magnetic induction lines act on the pot body, the effect of improving the heat efficiency can also be achieved.

Disclosure of Invention

Accordingly, the present invention is directed to an electromagnetic heating device that efficiently heats a workpiece.

To achieve the above object, an embodiment of the present invention provides an electromagnetic heating appliance, including: a pan body; the first magnetic strip is arranged at the bottom of the pot body; the coil is arranged between the first magnetic strip and the pot body; wherein the distance between the upper surface of the coil and the bottom of the pan body is d1, the distance between the upper surface of the first magnetic strip and the bottom of the pan body is d2,the units of d1 and d2 are mm.

Optionally, the total thickness of the coil is h, the unit of h is mm, and the d1, the d2 and h satisfy the following relation: d₂≥d₁+h。

Optionally, the method may be characterized in that,

optionally, the value of d1 ranges from 5mm to 15 mm.

Optionally, the value of d1 ranges from 7mm to 12 mm.

Optionally, the value of d2 ranges from 9mm to 27 mm.

Optionally, the value of d2 ranges from 14mm to 24 mm.

Optionally, the value of h ranges from 4mm to 8 mm.

Optionally, the d1 and the d2 further satisfy the following relation:

optionally, the electromagnetic heating device is any one of an electric cooker, an induction cooker, an IH electric kettle and an IH soymilk machine.

Compared with the prior art, the technical scheme of the invention has the following advantages:

1. an embodiment of the present invention provides an electromagnetic heating appliance, including: a pan body; the first magnetic strip is arranged at the bottom of the pot body; the coil is arranged between the first magnetic strip and the pot body; wherein the distance between the upper surface of the coil and the bottom of the pan body is d1, the distance between the upper surface of the first magnetic strip and the bottom of the pan body is d2,the units of d1 and d2 are mm.

So set up, through simulation experiment and simulation analysis, work as the coil with the interval between the bottom of the pot body with first magnetic stripe with when 8/21 to 3/4 the proportional relation between the interval between the bottom of the pot body, compare in traditional electromagnetic heating utensil, can guarantee that electromagnetic heating utensil when the power value is the biggest, improve electromagnetic heating utensil's magnetic-thermal conversion efficiency to the thermal efficiency makes higher.

2. In the embodiment of the invention, the distance d1 between the coil and the bottom of the pot body and the distance d2 between the first magnetic strip and the bottom of the pot body are set to be in the following relation:

the heat efficiency of the electromagnetic heating device can be more than 86 percent.

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 for a worker of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of an electromagnetic heating appliance according to an embodiment of the present invention;

FIG. 2 is a simulated image of d1 and d2 according to an embodiment of the present invention;

FIG. 3 is a graph showing a change in thermal efficiency according to a first embodiment of the present invention;

FIG. 4 is a graph showing the change in thermal efficiency of a second example of the present invention;

FIG. 5 is a graph showing the change in thermal efficiency of a third example of the present invention;

FIG. 6 is a magnetic stripe structure diagram according to an embodiment of the present invention.

Reference numerals:

1. a pan body; 2. a first magnetic stripe; 3. a coil; 4. and a second 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 obtained by a worker skilled in the art without creative efforts based on the embodiments of the present invention, belong to 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; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases by a worker of ordinary skill 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.

IH heating 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, and when a magnetic metal pot is placed on a stove surface, a magnetic induction wire penetrates through the pot body to generate vortex, so that vortex heat is formed to heat food in the pot. Cooking utensil with IH heating function, its structure mainly comprises three parts: the pot body, coil and magnetic stripe, and its relative position is from top to bottom, and wherein the coil is used for producing magnetism and feels the line, and the magnetic stripe is used for producing magnetism to feel the line tied in a bundle, and the pot body cuts magnetism and feels the line, and the pot body cutting's magnetism feels the line more, and the calorific capacity of the pot body is big more, and the magnetism heat conversion efficiency is also higher.

The magnetic field generated by the coil is closer to the coil and stronger, so that the space between the coil and the pot body is reduced to play a role in improving the induction magnetic field of the pot body, namely, the heat efficiency is improved. And the closer the distance between the magnetic strip and the pot body is, the more the magnetic induction lines are clustered, or the more the magnetic induction lines act on the pot body, the effect of improving the heat efficiency can also be achieved. Accordingly, the present invention is directed to an electromagnetic heating device that efficiently heats a workpiece.

Example 1

As shown in fig. 1 to 6, an embodiment of the present invention provides an electromagnetic heating appliance, which includes a pot body 1, a first magnetic strip 2 and a coil 3.

Specifically, a first magnetic strip 2 is arranged at the bottom of the pot body 1, and a coil 3 is arranged between the first magnetic strip 2 and the pot body 1; in the embodiment of the present invention, the distance between the upper surface of the coil 3 and the bottom of the pot body 1 is set to be d1, the distance between the upper surface of the first magnetic stripe 2 and the bottom of the pot body 1 is set to be d2, and the d1 and the d2 satisfy the following relation:

the units of d1 and d2 are mm. As shown in fig. 6, first magnetic stripe 2 is the bar setting, simultaneously in order to improve the effect of restrainting to the receipts of magnetism line of feeling, in this embodiment, as shown in fig. 6, can set up second magnetic stripe 4 in the one end of first magnetic stripe 2, is provided with certain contained angle between second magnetic stripe 4 and the first magnetic stripe 2, and the contained angle can be 60 degrees, also can be 90 degrees, when the upper end of first magnetic stripe 2 is provided with second magnetic stripe 4, d2 still does the upper surface of first magnetic stripe 2 with interval between the bottom of the pot body 1.

By performing simulation analysis on d1 and d2 of various electromagnetic heating appliances, for example, the electromagnetic heating appliances performing simulation analysis include an induction cooker, an IH electric kettle, an IH soybean milk machine and the like, the trends of d1 and d2 of these electromagnetic heating appliances are as follows: if d2 is kept unchanged, when d1 is smaller, the induction magnetic field of the pot body 1 of various electromagnetic heating appliances is increased; and if d1 is kept unchanged, the smaller d2 is, the larger the induction magnetic field of the pan body 1 is.

Meanwhile, as shown in fig. 2, the vertical axis represents the power value, and the horizontal axis represents the proportional values of d1 and d2, and the curve represents the variation curve of the thermal efficiency. Limiting the proportional relationship between d1 and d2 toThe higher the magnetocaloric conversion efficiency and thus the higher the thermal efficiency, may be when the electromagnetic heating device has the largest power value.

By means of the arrangement, through simulation experiments and simulation analysis, when the proportional relation between the distance between the coil 3 and the bottom of the pot body 1 and the distance between the first magnetic strip 2 and the bottom of the pot body 1 is 8/21-3/4, when the power value of the electromagnetic heating appliance is the maximum, compared with a traditional electromagnetic heating appliance, the magnetic-thermal conversion efficiency of the electromagnetic heating appliance in the embodiment of the invention is higher, and therefore the thermal efficiency is higher.

Optionally, in the embodiment of the present invention, the total thickness of the coil 3 is set to h, the unit of h is mm, and the total thickness h of the coil 3 is related to the number of layers of the coil 3. To ensure proper assembly, the relationship between the total thickness h of the coil 3, the distance d1 between the coil 3 and the bottom of the pan body 1 and the distance d2 between the first magnetic strip 2 and the bottom of the pan body 1 needs to be limited to d₂≥d₁+h。

In a particular embodiment of the invention, the relationship between the total thickness h of the coil 3 and the distance d2 between the first magnetic strip 2 and the bottom of the pan 1 can be limited toWith the arrangement, as the sizes of the structures of different types of electromagnetic heating appliances are different, the total thickness h of the coil 3 and the distance d2 between the first magnetic strip 2 and the bottom of the pot body 1 are closedIs limited toCan ensure that various electromagnetic heating appliances can be normally assembled without being limited by specific structural dimensions.

In one embodiment of the present invention, as shown in fig. 3, the vertical axis represents the power value, the horizontal axis represents the value range of d1, and the curve represents the variation curve of the thermal efficiency. When the distance d1 between the coil 3 and the bottom of the pot body 1 ranges from 5mm to 15mm, compared with the traditional electromagnetic heating device, the magnetic-thermal conversion efficiency can be improved to a certain extent when the power value of the electromagnetic heating device is the maximum, so that the thermal efficiency is improved.

In a preferred embodiment of the present invention, when the distance d1 between the coil 3 and the bottom of the pot body 1 is in the range of 7mm to 12mm, compared with the distance d1 in the range of 5mm to 15mm, the magnetocaloric conversion efficiency can be further improved when the power value of the electromagnetic heating device is maximum, thereby further improving the thermal efficiency.

In an embodiment of the present invention, similarly, when the distance d2 between the first magnetic stripe 2 and the bottom of the pot body 1 is in the range of 9mm to 27mm, compared with a conventional electromagnetic heating device, a certain magnetocaloric conversion efficiency can be improved when the power value of the electromagnetic heating device is the maximum, thereby improving the thermal efficiency.

In a preferred embodiment of the present invention, as shown in fig. 4, the vertical axis represents the power value, the horizontal axis represents the value range of d2, and the curve represents the variation curve of the thermal efficiency. When the distance d2 between the first magnetic stripe 2 and the bottom of the pot body 1 ranges from 12mm to 24mm, compared with the distance d2 ranging from 9mm to 27mm, the magnetocaloric conversion efficiency can be further improved when the power value of the electromagnetic heating device is the maximum, so that the thermal efficiency is further improved.

Also, in a preferred embodiment of the present invention, when the total thickness h of the coil 3 ranges from 4mm to 8mm, the assembly of the coil 3 can be facilitated while the magnetocaloric conversion efficiency is improved, compared to the total thickness of the coil 3 in the conventional electromagnetic heating device.

In a preferred embodiment of the present invention, the influence of d1 and d2 on the induced magnetic field can be integrated to directly fit the functional relationship between d1 and d2 on power, and the thermal efficiency and power form a certain corresponding relationship through experiments, as shown in fig. 5, the vertical axis is the thermal efficiency, and the horizontal axis is the power value. The thermal efficiency is higher with the increase of the function value, and when the value range is met, the thermal efficiency is further improved.

Wherein d1 is the distance between the coil 3 and the bottom of the pot body 1, and d2 is the distance between the first magnetic strip 2 and the bottom of the pot body 1.

In the embodiment of the invention, the distance d1 between the coil 3 and the bottom of the pot body 1 and the distance d2 between the first magnetic strip 2 and the bottom of the pot body 1 are set to be in the above relation, so that the heat efficiency of the electromagnetic heating appliance is more than 86%.

Optionally, in an embodiment of the present invention, the electromagnetic heating device is any one of an electric cooker, an induction cooker, an IH electric kettle, and an IH soymilk maker. Of course, the present embodiment is only an example of the type of the electromagnetic heating device, but the present invention is not limited thereto, and those skilled in the art can apply different electromagnetic heating devices according to actual situations, and can achieve the same technical effects.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Variations and modifications in other variations may occur to those skilled in the art based upon the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.