JP2011187199A - Induction heating coil - Google Patents

Induction heating coil Download PDF

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JP2011187199A
JP2011187199A JP2010048702A JP2010048702A JP2011187199A JP 2011187199 A JP2011187199 A JP 2011187199A JP 2010048702 A JP2010048702 A JP 2010048702A JP 2010048702 A JP2010048702 A JP 2010048702A JP 2011187199 A JP2011187199 A JP 2011187199A
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heating coil
induction heating
caulking
portions
flat
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JP5690992B2 (en
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Taihei Oguri
大平 小栗
Kenzo Usui
研造 碓井
Yasushi Morimoto
泰史 森本
Nobuyoshi Makio
信芳 槇尾
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Panasonic Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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Abstract

<P>PROBLEM TO BE SOLVED: To structure an anti-magnetic ring which suppresses cost and improves reliability of electrical connection. <P>SOLUTION: The anti-magnetic ring 3 is formed by bending a band-like metal plate, overlapping surfaces of both end parts 4 of the metal plate, and bonding by pressurizing while applying vibration of a frequency 10 kHz or more on a surface of at least one end part. Thereby, in processing the anti-magnetic ring, even metal with low resistance such as aluminum and copper can be bonded in a solid phase by overlapping both ends without increasing a temperature to a melting point. Thus, processing cost can be reduced, and even after the processing, reliability of electrical connection can be high. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、防磁リングを備えた誘導加熱コイルに関するものである。   The present invention relates to an induction heating coil provided with a magnetic shield ring.

従来、この種の誘導加熱コイルは、加熱コイルと加熱コイルから漏洩する磁界を抑制する防磁リングを備え、例えば、防磁リングの素材である帯材の両端を、重ね合わせ部１１の溶接による接合をしていた。図４は、従来の誘導加熱コイルの防磁リングの上面図である。   Conventionally, this type of induction heating coil includes a heating coil and a magnetic shielding ring that suppresses a magnetic field leaking from the heating coil. For example, both ends of a band material that is a material of the magnetic shielding ring are joined by welding of the overlapping portion 11. Was. FIG. 4 is a top view of a magnetic shield ring of a conventional induction heating coil.

また、防磁リングを重ね合わせ部１１をかしめにより接続している製品も多い。   In addition, there are many products in which a magnetic shield ring is connected to the overlapping portion 11 by caulking.

特許第３７３７９９３号公報Japanese Patent No. 3737993

しかしながら、従来の構成で、防磁リングの加工で帯状の金属板から両端を重ね合わせ溶接で接合する場合には、融点が高温で加工費が高くなり、アルミや銅などの抵抗の低い金属ではスポット溶接ができないという課題があった。また、溶接では金属同士が確実に接続するために酸化皮膜の対策をしなければならず、溶接後に加熱コイルから発する一部の磁界によって防磁リングが誘導加熱し高温になることによる熱変形により、接合部分に応力がかかるため、接合部分の電気抵抗を維持することが困難であった。   However, in the conventional configuration, when both ends of a band-shaped metal plate are joined by overlap welding in the processing of a magnetic shield ring, the melting point is high and the processing cost is high, and a metal with low resistance such as aluminum or copper is a spot. There was a problem that welding was not possible. In addition, in welding, it is necessary to take measures against an oxide film in order to securely connect metals to each other, and due to thermal deformation caused by induction heating of the magnetic shield ring due to some magnetic field generated from the heating coil after welding, Since stress is applied to the joint portion, it is difficult to maintain the electrical resistance of the joint portion.

また、かしめにより金属板を接続する場合には、酸化皮膜がある状態で、かしめられるために接触抵抗のばらつくという課題があり、さらに防磁リングが誘導加熱し高温になることによる酸化皮膜の成長も考えられ、防磁リングのかしめ部の電気的接続の信頼性を保つことが困難である課題を有していた。   In addition, when metal plates are connected by caulking, there is a problem that the contact resistance varies due to caulking in the presence of the oxide film, and further, the oxide film grows due to induction heating of the magnetic shield ring and high temperature. It has been considered that there is a problem that it is difficult to maintain the reliability of the electrical connection of the caulking portion of the magnetic shield ring.

本発明のは、前記従来の課題を解決するもので、誘導加熱コイルの防磁リングの加工時にアルミや銅などの抵抗の低い金属でも、融点まで温度を高めることなく、両端を重ね合わせて固相接合する超音波接合とかしめを用いるため、加工費が安く、接合部の応力にも強く、電気的接続の信頼性も高い防磁リングを備えた誘導加熱コイルを提供することを目的とする。   The present invention solves the above-mentioned conventional problems, and even when a magnetic shield ring of an induction heating coil is processed, even a metal having low resistance such as aluminum or copper is overlapped on both ends without raising the temperature to the melting point. An object of the present invention is to provide an induction heating coil provided with a magnetic shield ring that uses ultrasonic bonding and caulking to be bonded, is low in processing cost, is strong against stress in the bonded portion, and has high reliability in electrical connection.

前記従来の課題を解決するために、本発明の誘導加熱コイルは、加熱コイルと、前記加熱コイルの外周近傍に設けられ前記加熱コイルから漏洩する磁界を抑制する金属性の防磁リングとを備え、前記防磁リングは帯状の金属板を曲げ、前記金属板の両端部の面同士を重ね合わせ、少なくとも一方の端部の面に１０ｋＨｚ以上の周波数の振動を加えながら加圧することより接合されてなることを特徴とする構成としたものである。   In order to solve the conventional problem, an induction heating coil of the present invention includes a heating coil and a metallic magnetic shield ring provided near the outer periphery of the heating coil to suppress a magnetic field leaking from the heating coil. The magnetic shield ring is formed by bending a band-shaped metal plate, overlapping the surfaces of both end portions of the metal plate, and applying pressure while applying vibration of a frequency of 10 kHz or more to the surface of at least one end portion. It is set as the structure characterized by these.

これによって、アルミや銅などの抵抗の低い金属でも、融点まで温度を高めることなく、両端を重ね合わせて固相接合することができ、加工費が安く、接合部の応力にも強く、電気的接続の信頼性も高い防磁リングを備えた誘導加熱コイル誘導加熱コイルを提供する。   As a result, even low resistance metals such as aluminum and copper can be solid-phase bonded by superimposing both ends without raising the temperature to the melting point. An induction heating coil induction heating coil having a magnetic shield ring with high connection reliability is provided.

本発明の防磁リングを備えた誘導加熱コイルは、防磁リングの加工時において、アルミや銅などの抵抗の低い金属でも、融点まで温度を高めることなく、両端を重ね合わせて固相接合することができ、加工費が安く、加工後においても、接合部の応力にも強く、電気的接続の信頼性も高くすることができる。   The induction heating coil provided with the magnetic shield ring of the present invention can be solid-phase bonded by overlapping both ends without raising the temperature to the melting point even when a metal with low resistance such as aluminum or copper is used during the processing of the magnetic shield ring. In addition, the processing cost is low, and even after processing, it is strong against stress at the joint, and the reliability of electrical connection can be increased.

本発明の実施の形態１における誘導加熱コイルの全体斜視図Overall perspective view of induction heating coil according to Embodiment 1 of the present invention. 本発明の実施の形態１における防磁リングの上面図と部分拡大図The top view and partial enlarged view of the magnetic-shielding ring in Embodiment 1 of this invention 本発明の実施の形態１における防磁リングの接合部付近の正面図Front view of the vicinity of the joint of the magnetic-shielding ring in Embodiment 1 of the present invention 従来の実施例における誘導加熱コイルの防磁リングの上面図Top view of the magnetic shield ring of the induction heating coil in the conventional example

第１の発明は、加熱コイルと、前記加熱コイルの外周近傍に設けられ前記加熱コイルから漏洩する磁界を抑制する金属性の防磁リングとを備え、前記防磁リングは帯状の金属板を曲げ、前記金属板の両端部の面同士を重ね合わせ、少なくとも一方の端部の面に１０ｋＨｚ以上の周波数の振動を加えながら加圧することより接合されてなることを特徴とする誘導加熱コイルとすることにより、防磁リングの加工時において、アルミや銅などの抵抗の低い金属でも、融点まで温度を高めることなく、両端を重ね合わせて固相接合することができ、加工費が安くすることができ、加工後においても、電気的接続の信頼性も高いため、防磁リングを安価で信頼性の高い誘導加熱コイルを提供することができる。   1st invention is equipped with the heating coil and the metallic magnetic-shielding ring which is provided in the outer periphery vicinity of the said heating coil, and suppresses the magnetic field which leaks from the said heating coil, the said magnetic-shielding ring bends a strip | belt-shaped metal plate, By superimposing the surfaces of both ends of the metal plate and joining them by applying pressure to the surface of at least one end while applying vibration of a frequency of 10 kHz or more, When processing a magnetic shield ring, even low resistance metals such as aluminum and copper can be solid-phase bonded by superimposing both ends without raising the temperature to the melting point, reducing the processing cost, and after processing However, since the reliability of the electrical connection is also high, it is possible to provide an induction heating coil that is inexpensive and highly reliable.

第２の発明は、特に、第１の発明において、両端部は所定の長さの平面部を有し、前記平面部同士を重ね合わせ、接合されることにより、加工時の接合面の不一致による接合不良を防止し、確実に接合することができる。   According to a second aspect of the invention, in particular, in the first aspect of the invention, both end portions have flat portions of a predetermined length, and the flat portions are overlapped and joined to each other, resulting in a mismatch of the joining surfaces during processing. Bonding failure can be prevented and bonding can be performed reliably.

第３の発明は、特に、第２の発明において、平面部は２箇所のかしめ部で固定され、前記かしめ部間で前記平面部同士を重ね合わせ、接合されることされることにより、加熱コイルの加熱時の防磁リングの熱変形による応力に対して強固にすることができ、さらに、確実に接合することができる。   According to a third invention, in particular, in the second invention, the flat portion is fixed by two caulking portions, and the flat portions are overlapped and joined between the caulking portions, thereby heating coils. It is possible to strengthen against the stress caused by thermal deformation of the magnetic shield ring during heating, and it is possible to reliably bond.

第４の発明は、特に、第３の発明において、平面部はそれぞれかしめ孔と、端部またはその近傍に設けられた前記平面部と略直角に曲げられた曲げ部とを有し、一方の平面部の曲げ部が他の平面部の孔を貫通してかしめられて平面部間の接続を保持されることにより、かしめに必要なコストを抑えと平面部の面積を最小とすることができる。   According to a fourth aspect of the invention, in particular, in the third aspect of the invention, each of the flat portions has a caulking hole and a bent portion that is bent substantially perpendicularly to the flat portion provided at or near the end portion. Since the bent portion of the plane portion is caulked through the hole of the other plane portion to maintain the connection between the plane portions, the cost required for caulking can be suppressed and the area of the plane portion can be minimized. .

第５の発明は、特に、第４の発明において、かしめ部による固定がなされる前に少なくとも一方の端部の面に１０ｋＨｚ以上の周波数の振動を加えながら加圧することにより接合することで、かしめの固定による接合不良を防ぐことができる。かしめによる固定を先に行うと振動の妨げとなるため、かしめによる固定を後に行うことで確実に接合することができる。   The fifth aspect of the invention is particularly caulked in the fourth aspect of the invention by bonding by applying pressure while applying vibration of a frequency of 10 kHz or more to the surface of at least one end before being fixed by the caulking part. It is possible to prevent poor bonding due to fixing. If the fixing by caulking is performed first, vibrations are hindered. Therefore, the bonding can be reliably performed by performing the fixing by caulking later.

第６の発明は、特に、第２〜５のいずれか１つの発明において、防磁リングは帯状の金属板の曲げによる環状部を有し、環状部と平面部の間に段差を設けることにより、加熱コイルの加熱時の防磁リングの熱変形による応力に対して強固にすることができ、接合に電気的接続の信頼性を高めることができる。   In particular, in the invention according to any one of the second to fifth aspects, the sixth invention is characterized in that the magnetic-shielding ring has an annular portion formed by bending a band-shaped metal plate, and a step is provided between the annular portion and the flat portion. It can be strengthened against stress due to thermal deformation of the magnetic shield ring during heating of the heating coil, and the reliability of electrical connection for bonding can be improved.

第７の発明は、特に、第１〜６のいずれか１つの発明において両端部の近傍に加工用の位置決め部を設けることにより、振動による接合やかしめによる固定の位置のばらつきを抑制し、防磁リングの電気的特性である高周波抵抗やインダクタンスのばらつきを低減す
ることができる。 In particular, in the seventh invention, in any one of the first to sixth inventions, by providing a positioning portion for processing in the vicinity of both end portions, it is possible to suppress variations in the fixing position due to joining or caulking due to vibration, and to prevent magnetic shielding. Variations in high-frequency resistance and inductance, which are electrical characteristics of the ring, can be reduced.

以下、本発明の実施の形態について、図面を参照しながら説明する。尚、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiment.

（実施の形態１）
図１は本発明の実施の形態１における誘導加熱コイルの全体斜視図である。 (Embodiment 1)
FIG. 1 is an overall perspective view of an induction heating coil according to Embodiment 1 of the present invention.

図１において、円形の加熱コイル１が絶縁体で樹脂などで構成されるベース２に設置されており、加熱コイル１の外周に円形のアルミニウム板で構成される防磁リング３がベース２にねじ止めなどで固定されている。   In FIG. 1, a circular heating coil 1 is installed on a base 2 made of an insulator and made of resin or the like, and a magnetic shielding ring 3 made of a circular aluminum plate is screwed to the base 2 on the outer periphery of the heating coil 1. Etc. are fixed.

尚、加熱コイル１や防磁リングの３の形状は円形でなくても多角形でも良い。   The shapes of the heating coil 1 and the magnetic shield ring 3 may not be circular but may be polygonal.

また、防磁リングの材質は、銅などのアルミニウムよりさらに抵抗の小さい金属でも良いし、鉄などの抵抗の大きい金属でも良いが、抵抗の大きい金属の場合には、誘導加熱により温度上昇しやすくなるため、コストの面からも、実用にはアルミニウムが適している。   The material of the magnetic shield ring may be a metal having a lower resistance than aluminum such as copper or a metal having a higher resistance such as iron, but in the case of a metal having a higher resistance, the temperature is likely to rise by induction heating. Therefore, aluminum is suitable for practical use from the viewpoint of cost.

また、防磁リング２と加熱コイル１の距離が近すぎると、防磁リング２の中を加熱コイル１から発生する磁束線が多く通過するため、漏洩する磁界の遮蔽効果が大きくなる反面、加熱効率が低下する。防磁リング３は帯状のアルミニウム板を折り曲げにより、両端部４の板圧方向に面同士を重ね合わせ、一方の短部を固定し、もう一方の短部に１０ｋＨｚ以上の周波数の振動を加えながら、加圧することで、アルミニウムの表面の酸化皮膜などがとれて、さらに摩擦熱によりアルミニウム原子が固相接合されている。このときの摩擦熱による温度はアルミニウムの融点である６６０℃までは行かず、４００℃程度で接合できるため、設備を痛めにくく、ランニングコストも安い。アルミニウム原子同士で固相接合するために、酸化皮膜の生成による電気抵抗の増大がないため、電気的接続の信頼性が高い接合といえる。   Moreover, if the distance between the magnetic shield ring 2 and the heating coil 1 is too short, many magnetic flux lines generated from the heating coil 1 pass through the magnetic shield ring 2, so that the shielding effect of the leaking magnetic field increases, but the heating efficiency is high. descend. The magnetic shield 3 is formed by bending a belt-shaped aluminum plate so that the surfaces overlap each other in the plate pressure direction of both ends 4, fix one short part, and apply vibration with a frequency of 10 kHz or more to the other short part, By applying pressure, an oxide film or the like on the surface of aluminum is removed, and aluminum atoms are solid-phase bonded by frictional heat. At this time, the temperature due to frictional heat does not go to 660 ° C., which is the melting point of aluminum, but can be joined at about 400 ° C. Therefore, the equipment is hardly damaged and the running cost is low. Since aluminum atoms are solid-phase bonded to each other, there is no increase in electrical resistance due to the formation of an oxide film.

図２は本発明の実施の形態１における防磁リングの上面図と部分拡大図である。   FIG. 2 is a top view and a partially enlarged view of the magnetic-shielding ring according to Embodiment 1 of the present invention.

図２において、両端部４には平面部５を設けている。平面部５を設けることにより、超音波接合時の接合面の不一致による接合不良を防止し、確実に接合することができる。また、平面部５またはその近傍に位置決め部６を設け、超音波接合時に防磁リングを固定して作業する際の固定位置のばらつきを低減するとともに、接合後に接合部１０の外側２箇所にかしめ部７を設けることで、加熱コイル１の加熱時の防磁リング３の熱変形による応力に対して強固にすることができる。   In FIG. 2, flat portions 5 are provided at both end portions 4. By providing the flat surface portion 5, it is possible to prevent bonding failure due to mismatching of bonding surfaces during ultrasonic bonding and to perform bonding reliably. Further, the positioning portion 6 is provided in the plane portion 5 or in the vicinity thereof to reduce the variation in the fixing position when the magnetic-shielding ring is fixed during the ultrasonic bonding, and the caulking portion is bonded to the outer two portions of the bonding portion 10 after the bonding. By providing 7, it is possible to strengthen against the stress caused by thermal deformation of the magnetic shield ring 3 when the heating coil 1 is heated.

また、位置決め部６は孔であっても、そうでなくても加工時に、振動による接合やかしめによる固定の位置を抑制できる形状であれば良い。   In addition, the positioning portion 6 may be a hole or a shape that can suppress the fixing position by vibration or caulking at the time of processing.

また、かしめ部７は、平面部５にあるかしめ孔８と両端部４付近の金属板を略垂直に曲げて作成した曲げ部９から構成されており、曲げ部９をかしめ孔８に挿入してその後、プレスすることにより金属板の両端部が固定される。本実施例においてはかしめ方法はアルミニウムのプレスによる固定であるが、他にも異なる金属材料などであるステンレスのリベットのプレスによる固定であっても良いし、かしめにより固定できれば材料や形状は問わないが、コスト面からも防磁リング３の材料そのものでかしめるのが最も安い。   The caulking portion 7 is composed of a caulking hole 8 in the flat portion 5 and a bending portion 9 formed by bending a metal plate in the vicinity of both end portions 4 substantially vertically, and the bending portion 9 is inserted into the caulking hole 8. Then, both ends of the metal plate are fixed by pressing. In this embodiment, the caulking method is fixing with an aluminum press, but it may be fixing with a press of a stainless steel rivet, which is a different metal material, and any material or shape can be used as long as it can be fixed by caulking. However, it is the cheapest to caulk with the material of the magnetic-shielding ring 3 in terms of cost.

また、かしめ部７は１箇所であっても良いが、接合部１０の外側の２箇所設けることで
、さらに接合部１０にかかる熱応力を軽減して電機的接続の信頼性を高めている。 Further, the caulking portion 7 may be provided at one location, but by providing two locations outside the joint portion 10, the thermal stress applied to the joint portion 10 is further reduced to improve the reliability of electrical connection.

図３は本発明の実施の形態１における防磁リングの接合部付近の正面図である。   FIG. 3 is a front view of the vicinity of the joint portion of the magnetic-shielding ring according to Embodiment 1 of the present invention.

図３において、かしめ部７の断面形状は本実施の形態では長方形であり、長方形にすることで単純な曲げによる、曲げ部ができるため加工がしやすい。   In FIG. 3, the cross-sectional shape of the caulking portion 7 is a rectangle in the present embodiment, and since a bent portion is formed by simple bending by making the shape into a rectangle, it is easy to process.

以上のように、本発明にかかる防磁リングを備えた誘導加熱コイルは、防磁リングの加工時にアルミや銅などの抵抗の低い金属でも、融点まで温度を高めることなく、両端を重ね合わせて固相接合することができる超音波接合を用いるため、加工費が安く、接合部の応力にも強く、電気的接続の信頼性も高くすることができるので、防磁リングを備えた誘導加熱機器等の用途にも適用できる。   As described above, the induction heating coil provided with the magnetic shielding ring according to the present invention can be obtained by superimposing both ends on the solid phase without increasing the temperature to the melting point even with a metal having low resistance such as aluminum or copper when the magnetic shielding ring is processed. Because ultrasonic bonding that can be bonded is used, the processing cost is low, the stress of the bonded portion is strong, and the reliability of electrical connection can be increased. It can also be applied to.

１ 加熱コイル
２ ベース
３ 防磁リング
４ 両端部
５ 平面部
６ 位置決め部
７ かしめ部
８ かしめ孔
９ 曲げ部
１０ 接合部
１１ 重ね合わせ部 DESCRIPTION OF SYMBOLS 1 Heating coil 2 Base 3 Magnetic-shield ring 4 Both ends 5 Plane part 6 Positioning part 7 Caulking part 8 Caulking hole 9 Bending part 10 Joining part 11 Superposition part

Claims (7)

加熱コイルと、前記加熱コイルの外周近傍に設けられ前記加熱コイルから漏洩する磁界を抑制する金属性の防磁リングとを備え、前記防磁リングは帯状の金属板を曲げ、前記金属板の両端部の面同士を重ね合わせ、少なくとも一方の端部の面に１０ｋＨｚ以上の周波数の振動を加えながら加圧することより接合されてなることを特徴とする誘導加熱コイル。 A heating coil, and a metallic magnetic shield ring provided near the outer periphery of the heating coil to suppress a magnetic field leaking from the heating coil. The magnetic shield ring bends a band-shaped metal plate, and is formed at both ends of the metal plate. An induction heating coil, wherein the surfaces are superposed and joined by applying pressure to at least one end surface while applying vibration having a frequency of 10 kHz or more. 両端部は所定の長さの平面部を有し、前記平面部同士を重ね合わせ、接合されることを特徴とする請求項１に記載の誘導加熱コイル。 2. The induction heating coil according to claim 1, wherein both end portions have a planar portion having a predetermined length, and the planar portions are overlapped and joined to each other. 平面部は２箇所のかしめ部で固定され、前記かしめ部間で前記平面部同士を重ね合わせ、接合されることを特徴とする請求項２項に記載の誘導加熱コイル。 The induction heating coil according to claim 2, wherein the flat portion is fixed by two caulking portions, and the flat portions are overlapped and joined between the caulking portions. 平面部はそれぞれかしめ孔と、端部またはその近傍に設けられた前記平面部と略直角に曲げられた曲げ部とを有し、一方の平面部の曲げ部が他の平面部の孔を貫通してかしめられて平面部間の接続を保持してなることを特徴とする請求項３項に記載の誘導加熱コイル。 Each flat part has a caulking hole and a bent part bent at a substantially right angle with the flat part provided at or near the end, and the bent part of one flat part penetrates the hole of the other flat part. 4. The induction heating coil according to claim 3, wherein the induction heating coil is caulked to maintain the connection between the flat portions. かしめ部による固定がなされる前に少なくとも一方の端部の面に１０ｋＨｚ以上の周波数の振動を加えながら加圧することにより接合される請求項３または４に記載の誘導加熱コイル。 The induction heating coil according to claim 3 or 4, wherein the induction heating coil is joined by applying pressure while applying vibration having a frequency of 10 kHz or more to the surface of at least one end before being fixed by the caulking portion. 防磁リングは帯状の金属板の曲げによる環状部を有し、環状部と平面部の間に段差を設けることを特徴とする請求項２〜５のいずれか１項に記載の誘導加熱コイル。 The induction heating coil according to any one of claims 2 to 5, wherein the magnetic shield ring has an annular portion formed by bending a belt-shaped metal plate, and a step is provided between the annular portion and the flat portion. 両端部の近傍に加工用の位置決め部を設けた請求項１〜６のいずれか１項に記載の誘導加熱コイル。 The induction heating coil according to any one of claims 1 to 6, wherein a positioning portion for processing is provided in the vicinity of both end portions.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105592586A (en) * 2015-12-22 2016-05-18 杭州信多达电器有限公司 Drum outer curved foot assignment method and assignment structure

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62217646A (en) * 1986-03-19 1987-09-25 Hitachi Ltd Manufacture of lsi cooling fin
JPH08250272A (en) * 1995-03-14 1996-09-27 Matsushita Electric Ind Co Ltd Induction cooking appliance and manufacture of magnetic shield part thereof
JPH10262363A (en) * 1997-03-18 1998-09-29 Sumitomo Light Metal Ind Ltd Reaction plate for linear motor car, and its manufacture
JPH1177337A (en) * 1997-09-05 1999-03-23 Showa Alum Corp Method for joining metallic thin sheet
JP2000097212A (en) * 1998-09-24 2000-04-04 Kenrotsuku:Kk Squeezing type reusable clamp fixture
JP2002096180A (en) * 2000-07-17 2002-04-02 Topre Corp Ultrasonic welding machine
JP2003322117A (en) * 2002-04-26 2003-11-14 Mitsuboshi Belting Ltd Joining structure for aluminum plate to base material
JP2005088067A (en) * 2003-09-19 2005-04-07 Mitsubishi Electric Corp Horn, ultrasonic joining device including horn, and ultrasonic joining method
JP2005239029A (en) * 2004-02-27 2005-09-08 Kawasaki Heavy Ind Ltd Railway vehicle structural body
JP2005254323A (en) * 2004-03-15 2005-09-22 Kobe Steel Ltd Ultrasonic welding tip and welding method
JP3737993B2 (en) * 2002-06-28 2006-01-25 田淵電機株式会社 Coil device for induction heating with shield ring
JP2007283376A (en) * 2006-04-19 2007-11-01 Yazaki Corp Metal joined body, and its joining method

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62217646A (en) * 1986-03-19 1987-09-25 Hitachi Ltd Manufacture of lsi cooling fin
JPH08250272A (en) * 1995-03-14 1996-09-27 Matsushita Electric Ind Co Ltd Induction cooking appliance and manufacture of magnetic shield part thereof
JPH10262363A (en) * 1997-03-18 1998-09-29 Sumitomo Light Metal Ind Ltd Reaction plate for linear motor car, and its manufacture
JPH1177337A (en) * 1997-09-05 1999-03-23 Showa Alum Corp Method for joining metallic thin sheet
JP2000097212A (en) * 1998-09-24 2000-04-04 Kenrotsuku:Kk Squeezing type reusable clamp fixture
JP2002096180A (en) * 2000-07-17 2002-04-02 Topre Corp Ultrasonic welding machine
JP2003322117A (en) * 2002-04-26 2003-11-14 Mitsuboshi Belting Ltd Joining structure for aluminum plate to base material
JP3737993B2 (en) * 2002-06-28 2006-01-25 田淵電機株式会社 Coil device for induction heating with shield ring
JP2005088067A (en) * 2003-09-19 2005-04-07 Mitsubishi Electric Corp Horn, ultrasonic joining device including horn, and ultrasonic joining method
JP2005239029A (en) * 2004-02-27 2005-09-08 Kawasaki Heavy Ind Ltd Railway vehicle structural body
JP2005254323A (en) * 2004-03-15 2005-09-22 Kobe Steel Ltd Ultrasonic welding tip and welding method
JP2007283376A (en) * 2006-04-19 2007-11-01 Yazaki Corp Metal joined body, and its joining method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105592586A (en) * 2015-12-22 2016-05-18 杭州信多达电器有限公司 Drum outer curved foot assignment method and assignment structure

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