CN113163535A - Narrow-side line electromagnetic induction heating device and method - Google Patents

Narrow-side line electromagnetic induction heating device and method Download PDF

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Publication number
CN113163535A
CN113163535A CN202110463385.5A CN202110463385A CN113163535A CN 113163535 A CN113163535 A CN 113163535A CN 202110463385 A CN202110463385 A CN 202110463385A CN 113163535 A CN113163535 A CN 113163535A
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China
Prior art keywords
ferrite
narrow
induction heating
core
electromagnetic induction
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CN202110463385.5A
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Chinese (zh)
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李学兵
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Shenzhen Biyuanda Technology Co ltd
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Shenzhen Biyuanda Technology Co ltd
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Priority to CN202110463385.5A priority Critical patent/CN113163535A/en
Publication of CN113163535A publication Critical patent/CN113163535A/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/02Induction heating
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/02Induction heating
    • H05B6/36Coil arrangements

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  • Electromagnetism (AREA)
  • General Induction Heating (AREA)

Abstract

The invention discloses a narrow-side line electromagnetic induction heating device, which comprises: ferrite, wherein the ferrite is of an E-type structure; an electromagnetic coil wound within the ferrite; the opening direction of the E-shaped structure of the ferrite is parallel to the opening direction of the electromagnetic coil, and the ferrite is multiple and the multiple ferrites are mutually connected end to form at least one row. By butting a plurality of E-type ferrites, the electromagnetic coils are uniformly wound on the ferrites, the paired coils are connected in series, the heating length is longer, the paired coils are not easy to deform, the fixed coil adopts an aluminum plate, the range of a compressed induction magnetic field is effectively shielded, the coil is directly wound on the E-type ferrites, and the width of the coil is greatly compressed; the linear and long heating is more uniform, and the temperature difference of the heating body is low; the whole size of the compression induction coil is more exquisite, the installation is convenient, the installation space is not occupied, and the compression induction coil is very suitable for being applied to a use scene of welding seam heating and welding seam heating of continuous passing.

Description

Narrow-side line electromagnetic induction heating device and method
Technical Field
The invention relates to the technical field of electromagnetic induction, in particular to a narrow-side line electromagnetic induction heating device.
Background
The electromagnetic coil can convert electric energy into heat energy, in some scenes, such as welding seam heating, continuous welding seam heating and the like, a heating device with narrow edges is needed, and the conventional flat plate type long-strip wound electromagnetic coil is large in occupied area, wide in magnetic field range and uneven in heating. The electromagnetic induction coil requires large inductance, the width of the coil cannot be reduced, the application of the heating body with narrow width and long length cannot heat normally, the heating effect is not good, and when the induction coil is larger than 2 meters, the electromagnetic coil is easy to deform.
Disclosure of Invention
The invention mainly aims to provide a narrow-side line electromagnetic induction heating device which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a narrow-sided line electromagnetic induction heating apparatus comprising:
ferrite, wherein the ferrite is of an E-type structure;
an electromagnetic coil wound within the ferrite;
the opening direction of the E-shaped structure of the ferrite is parallel to the opening direction of the electromagnetic coil, and the ferrite is multiple and the multiple ferrites are mutually connected end to form at least one row.
Further, aluminum plates are arranged on two sides of the electromagnetic coil.
Furthermore, a plurality of ferrite end to end connect each other for the ferrite group, ferrite group both sides respectively be equipped with the parallel aluminium fixed plate of ferrite group length direction, a plurality of ferrite with the aluminium fixed plate butt.
Further, the E-shaped structure of the ferrite comprises a back part, a first core body and two second core bodies, the number of the second core bodies is two, the first core body and the second core bodies are designed integrally with the back part, and the width of the first core body is equal to the sum of the two second core bodies.
Further, the outer wall of the second core body corresponds in shape, and the extending direction is kept unchanged after combination.
Further, the heights of the first core and the second core are equal.
Furthermore, a plurality of ferrites are mutually connected end to form ferrite groups, the number of the ferrite groups is more than or equal to 2, and the plurality of ferrite groups are electrically connected in series.
Based on another aspect of the present invention, an electromagnetic induction heating method for a narrow-side line is provided, which includes the following steps:
extending the downward end of the core body to form a back structure, and arranging a plurality of core body strips into at least one group;
the electromagnetic coils are wound in the core partitions in sequence;
magnetic field compression plates are arranged on two sides of the electromagnetic coil.
Further, the core body extends to one end downwards to form a back structure and then extends to the interior of the adjacent electromagnetic coil to become a part of the core body of the adjacent electromagnetic coil.
Further, the core is ferrite, and the magnetic field compression plate is an aluminum plate.
Compared with the prior art, the invention has the following beneficial effects: the invention has reasonable design, a plurality of E-type ferrites are butted, the electromagnetic coils are uniformly wound on the ferrites, the paired coils are connected in series, the heating length is longer, the paired coils are not easy to deform, the fixed coil adopts an aluminum plate, the range of a compressed induction magnetic field is effectively shielded, the coil is directly wound on the E-type ferrites, and the width of the coil is greatly compressed; the linear and long heating is more uniform, and the temperature difference of the heating body is low; the whole size of the compression induction coil is more exquisite, the installation is convenient, the installation space is not occupied, and the advantages are prominent when the compression induction coil is applied to a use scene of welding seam heating and continuous welding seam heating.
Drawings
Fig. 1 is a schematic structural diagram of a narrow-side line electromagnetic induction heating device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a narrow-side line electromagnetic induction heating device according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a narrow-side line electromagnetic induction heating device according to an embodiment of the present invention.
In the figure: 1. a ferrite; 2. an electromagnetic coil; 3. a back; 4. a first core; 5. a second core.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.
Example 1
A narrow-sided line electromagnetic induction heating apparatus comprising:
the ferrite 1 is used as a magnetic core of the electromagnetic coil 2, the ferrite 1 is of an E-shaped structure, and the E-shaped structure is used for winding the electromagnetic coil by upwards protruding a plurality of magnetic cores on the basis of a straight back;
an electromagnetic coil 2, the electromagnetic coil 2 being wound inside the ferrite 1;
the opening direction of the E-shaped structure of the ferrite 1 is parallel to the opening direction of the electromagnetic coil 2, the ferrite 1 is multiple, and the ferrite 1 is mutually connected end to form at least one row.
Wherein, the both sides of solenoid 2 are equipped with aluminum plate, and aluminum plate can be used for the fixed action and restrict the magnetic field, raises the efficiency.
The ferrite groups are connected end to end, aluminum fixing plates parallel to the length direction of the ferrite groups are arranged on two sides of each ferrite group, and the plurality of ferrites 1 are abutted to the aluminum fixing plates.
The E-shaped structure of the ferrite 1 has a back 3, two first cores 4 and two second cores 5, the first and second cores 5 are integrally designed with the back 3, and the width of the first core is equal to the sum of the two second cores 5.
Wherein, the outer wall of the second core body 5 is corresponding in shape, and the extending direction is kept unchanged after combination, so as to facilitate connection.
Wherein the first core and the second core 5 are equal in height.
The plurality of ferrites 1 are mutually connected end to form ferrite groups, the number of the ferrite groups is more than or equal to 2, and the plurality of ferrite groups are electrically connected in series.
Based on another aspect of the present invention, an electromagnetic induction heating method for a narrow-side line is provided, which includes the following steps:
extending the downward end of the core body to form a back structure, and arranging a plurality of core body strips into at least one group;
the electromagnetic coils are wound in the core partitions in sequence;
magnetic field compression plates are arranged on two sides of the electromagnetic coil.
And one end of the core body, which faces downwards, extends to form a back structure and then extends to the interior of the adjacent electromagnetic coil to become a part of the core body of the adjacent electromagnetic coil.
Wherein, the core is ferrite, and the magnetic field compression plate is aluminum plate.
Example 2
A narrow-sided line electromagnetic induction heating apparatus comprising:
the ferrite 1, wherein the ferrite 1 is of an integrated E-shaped structure;
an electromagnetic coil 2, the electromagnetic coil 2 being wound inside the ferrite 1;
wherein the opening direction of the E-shaped structure of the ferrite 1 is parallel to the opening direction of the electromagnetic coil 2.
Wherein, the two sides of the electromagnetic coil 2 are provided with aluminum plates.
Wherein, ferrite 1 both sides respectively are equipped with the parallel aluminium fixed plate of ferrite 1 length direction, ferrite 1 with aluminium fixed plate butt.
Based on another aspect of the present invention, an electromagnetic induction heating method for a narrow-side line is provided, which includes the following steps:
extending the downward end of the core body to form a back structure, and arranging a plurality of core body strips into at least one group;
the electromagnetic coils are wound in the core partitions in sequence;
magnetic field compression plates are arranged on two sides of the electromagnetic coil.
And one end of the core body, which faces downwards, extends to form a back structure and then extends to the interior of the adjacent electromagnetic coil to become a part of the core body of the adjacent electromagnetic coil.
Wherein, the core is ferrite, and the magnetic field compression plate is aluminum plate.
The working principle is as follows:
a plurality of E-type ferrites are arranged side by side, electromagnetic coils are sequentially wound in the ferrite partitions, after each partition is wound, the electromagnetic coils are bridged to the next partition to continue to be wound, and the like is performed until the length required by practical application is reached; an E-type winding mode, wherein an induction magnetic field cannot penetrate through the back of the E-type ferrite according to magnetic field distribution; in addition, the two sides of the induction coil are provided with aluminum fixing plates, and the aluminum fixing plates are opened to cut the compressed magnetic field, so that the electromagnetic induction magnetic field cannot be cut out from the back, left and right and can only be cut out from the top, most of the induction magnetic field is applied to one plane for heating, the heating efficiency is improved, and the induction magnetic field can be reduced to heat metal objects which are not required to be heated at the periphery; the heating surface can use the mode of multiunit coil series connection when length is very long, adds heating surface length, reduces core quantity, reduces purchasing cost simultaneously.
The invention has been described above with reference to embodiments thereof. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be devised by those skilled in the art without departing from the scope of the invention, and these alternatives and modifications are intended to be within the scope of the invention.

Claims (10)

1. A narrow-sided line electromagnetic induction heating device, comprising:
ferrite, wherein the ferrite is of an E-type structure;
an electromagnetic coil wound within the ferrite;
the opening direction of the ferrite E-shaped structure is parallel to the opening direction of the electromagnetic coil, and the ferrites are connected end to form at least one row.
2. The narrow-sided line electromagnetic induction heating apparatus of claim 1, wherein aluminum plates are provided on both sides of the electromagnetic coil.
3. The narrow-sided line electromagnetic induction heating device of claim 1, wherein a plurality of the ferrites are connected end to form a ferrite group, aluminum fixing plates parallel to the length direction of the ferrite group are respectively arranged on two sides of the ferrite group, and the plurality of the ferrites are abutted to the aluminum fixing plates.
4. The narrow-sided line electromagnetic induction heating apparatus of claim 1, wherein the E-shaped structure of ferrite has a back, two first cores and two second cores, the first and second cores are designed integrally with the back, and the width of the first core is equal to the sum of the two second cores.
5. The narrow-sided line electromagnetic induction heating apparatus of claim 4, wherein the outer wall of the second core corresponds in shape and remains unchanged in direction of extension after bonding.
6. The narrow-sided line electromagnetic induction heating apparatus of claim 4, wherein the first core and the second core are equal in height.
7. The narrow-sided linear electromagnetic induction heating apparatus as claimed in any one of claims 1 to 6, wherein a plurality of said ferrites are connected end to end in ferrite groups, the number of said ferrite groups is 2 or more, and a plurality of said ferrite groups are electrically connected in series.
8. A narrow-side line electromagnetic induction heating method is characterized by comprising the following steps:
extending the downward end of the core body to form a back structure, and arranging a plurality of core body strips into at least one group;
the electromagnetic coils are wound in the core partitions in sequence;
magnetic field compression plates are arranged on two sides of the electromagnetic coil.
9. The narrow-sided line electromagnetic induction heating method of claim 8, wherein the core extends to a lower end to form a back structure and then continues to extend into an adjacent electromagnetic coil to become a portion of the core of the adjacent electromagnetic coil.
10. The narrow-sided line electromagnetic induction heating method of claim 9, wherein the core is ferrite and the magnetic field compression plate is an aluminum plate.
CN202110463385.5A 2021-04-23 2021-04-23 Narrow-side line electromagnetic induction heating device and method Pending CN113163535A (en)

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Application Number Priority Date Filing Date Title
CN202110463385.5A CN113163535A (en) 2021-04-23 2021-04-23 Narrow-side line electromagnetic induction heating device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110463385.5A CN113163535A (en) 2021-04-23 2021-04-23 Narrow-side line electromagnetic induction heating device and method

Publications (1)

Publication Number Publication Date
CN113163535A true CN113163535A (en) 2021-07-23

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005100935A (en) * 2003-08-25 2005-04-14 Tokyo Denki Univ Pipe induction heating device
US20110100980A1 (en) * 2009-03-13 2011-05-05 Takeshi Kitaizumi Induction heating cooker and kitchen unit having the same
CN102423751A (en) * 2011-09-06 2012-04-25 汕头市新青罐机有限公司 Solidification device for welding seam coating of metal can body
CN111601412A (en) * 2020-06-24 2020-08-28 湖南千豪机电技术开发有限公司 Cage type magnetic shielding electromagnetic induction heating device
CN214675749U (en) * 2021-04-23 2021-11-09 深圳市碧源达科技有限公司 Narrow-side line electromagnetic induction heating device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005100935A (en) * 2003-08-25 2005-04-14 Tokyo Denki Univ Pipe induction heating device
US20110100980A1 (en) * 2009-03-13 2011-05-05 Takeshi Kitaizumi Induction heating cooker and kitchen unit having the same
CN102423751A (en) * 2011-09-06 2012-04-25 汕头市新青罐机有限公司 Solidification device for welding seam coating of metal can body
CN111601412A (en) * 2020-06-24 2020-08-28 湖南千豪机电技术开发有限公司 Cage type magnetic shielding electromagnetic induction heating device
CN214675749U (en) * 2021-04-23 2021-11-09 深圳市碧源达科技有限公司 Narrow-side line electromagnetic induction heating device

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