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JP6435458B2 - Cover structure and welding method thereof - Google Patents
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JP6435458B2 - Cover structure and welding method thereof - Google Patents

Cover structure and welding method thereof Download PDF

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JP6435458B2
JP6435458B2 JP2014177823A JP2014177823A JP6435458B2 JP 6435458 B2 JP6435458 B2 JP 6435458B2 JP 2014177823 A JP2014177823 A JP 2014177823A JP 2014177823 A JP2014177823 A JP 2014177823A JP 6435458 B2 JP6435458 B2 JP 6435458B2
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cover
end surface
contact
welded
peripheral end
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JP2016050899A (en
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克年 豊竹
克年 豊竹
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Tamagawa Seiki Co Ltd
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Tamagawa Seiki Co Ltd
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Description

本発明は、カバー構造及びその溶着方法に関し、特に、カバーを相手方部材に溶着する場合、溶着部に位置するカバー溶着部用周端面部のみは、輪状ステータの端面に対して非接触となる非接触部を有するための新規な改良に関する。   The present invention relates to a cover structure and a welding method thereof, and in particular, when a cover is welded to a mating member, only the peripheral end surface portion for the cover weld portion located in the weld portion is not in contact with the end surface of the annular stator. It relates to a new improvement for having a contact.

従来、用いられていたこの種のカバー構造としては、例えば、特許文献１に開示されたレゾルバのステータカバー構造を図３から図７として挙げることができる。
まず、図３から図６の従来構成において、図３において符号１で示されるものは輪状ステータであり、この輪状ステータ１の内方に突出して形成された複数の磁極２には、第１、第２輪状絶縁板３,４を介してステータ巻線５が巻回されている。 As this type of cover structure conventionally used, for example, the resolver stator cover structure disclosed in Patent Document 1 can be cited as FIGS. 3 to 7.
First, in the conventional configuration shown in FIGS. 3 to 6, what is denoted by reference numeral 1 in FIG. 3 is a ring-shaped stator, and a plurality of magnetic poles 2 projecting inwardly of the ring-shaped stator 1 include first, A stator winding 5 is wound around the second annular insulating plates 3 and 4.

前記輪状ステータ１の両面には、このステータ巻線５を覆うように第１、第２輪状巻線カバー７,８が設けられている。前記第１輪状巻線カバー７の周縁に形成された複数の第１突起７ａは、前記輪状ステータ１の前記ステータ巻線５の外側位置に設けられた複数の貫通孔１０を貫通して輪状ステータ１の面１ａから突出している。   First and second annular winding covers 7 and 8 are provided on both surfaces of the annular stator 1 so as to cover the stator winding 5. A plurality of first protrusions 7 a formed on the peripheral edge of the first ring-shaped winding cover 7 penetrates through a plurality of through holes 10 provided at positions outside the stator winding 5 of the ring-shaped stator 1. 1 protrudes from the surface 1a.

前記第２輪状巻線カバー８の周縁には、前記各第１突起７ａに対応した位置にこの第１突起７ａよりも長さが短く形成された第２突起８ａが形成され、各突起７ａと８ａは、図１で示されるように互いに接合され、接合面が超音波の加熱によって溶着された溶着部１１によって一体となるように結合されている。従って、この溶着部１１は前記面１ａよりも軸方向にやや離れて位置している。尚、この第１、第２輪状巻線カバー７,８は、輪状ステータ１の何れの面に対しても設けることができる。   On the periphery of the second ring-shaped winding cover 8, second protrusions 8a having a length shorter than the first protrusions 7a are formed at positions corresponding to the first protrusions 7a. As shown in FIG. 1, the members 8a are joined together, and the joining surfaces are joined together by a welded portion 11 welded by ultrasonic heating. Therefore, the welded portion 11 is located slightly away from the surface 1a in the axial direction. The first and second annular winding covers 7 and 8 can be provided on any surface of the annular stator 1.

また、前述の溶着によるレゾルバステータのカバー構造においては、その溶着部分を拡大して示すと、図７に示される通りである。
すなわち、図７において符号８で示されるものは、断面で凹状をなすカバーであり、このカバー８は、例えば、レゾルバの第１輪状巻線カバーをなす樹脂成形品で構成されている。 Moreover, in the cover structure of the resolver stator by the above-mentioned welding, when the welding part is expanded and shown, it is as FIG. 7 shows.
That is, what is indicated by reference numeral 8 in FIG. 7 is a cover having a concave shape in cross section, and this cover 8 is formed of, for example, a resin molded product that forms a first annular winding cover of a resolver.

前記カバー８の輪状をなす外周部８Ｍのカバー周端面部８Ａは、前記輪状ステータ１の端面１Ａに接触しており、前記輪状ステータ１の他端面１Ｂには、前記カバー８の対向側に設けられ前記カバー８と同様の断面形状を有する第２輪状巻線カバーからなる相手方部材７が設けられている。
前記相手方部材７の裏面７Ａには、この裏面７Ａと一体に成形され前記カバー８側へ向けて突出する突起部７ａが形成され、前記突起部７ａは前記輪状ステータ１のスロット又は孔２０を貫通して前記カバー８の裏面８Ｂに接触している。 A cover peripheral end surface portion 8A of the outer peripheral portion 8M forming a ring shape of the cover 8 is in contact with an end surface 1A of the ring-shaped stator 1, and provided on the other end surface 1B of the ring-shaped stator 1 on the opposite side of the cover 8. A mating member 7 comprising a second annular winding cover having the same cross-sectional shape as the cover 8 is provided.
On the back surface 7A of the counterpart member 7, a protrusion 7a is formed integrally with the back surface 7A and protrudes toward the cover 8, and the protrusion 7a penetrates the slot or hole 20 of the ring-shaped stator 1. In contact with the back surface 8B of the cover 8.

前記突起部７ａと前記カバー８の裏面８Ｂとを溶着する場合、図７のように前記突起部７ａに対応して位置する前記カバー８の表面８Ｃを溶着部１１とし、溶着ホーン２１をこの溶着部１１に接触させる。
前述の状態下で、溶着ホーン２１を駆動させると、超音波加熱によって溶着部１１と突起部７ａの上部とが加熱され、すぐに溶着されて前記カバー８と突起部７ａとが溶着し、前記輪状ステータ１の各端面１Ａ，１Ｂに対して、前記ステータ巻線５を保護するための前記カバー８と相手方部材７とが強固に固定される。 When welding the protruding portion 7a and the back surface 8B of the cover 8, the surface 8C of the cover 8 positioned corresponding to the protruding portion 7a is used as a welding portion 11 as shown in FIG. The part 11 is brought into contact.
When the welding horn 21 is driven under the above-described state, the welded portion 11 and the upper portion of the protruding portion 7a are heated by ultrasonic heating, and immediately welded to bond the cover 8 and the protruding portion 7a, The cover 8 and the counterpart member 7 for protecting the stator winding 5 are firmly fixed to the end faces 1A and 1B of the annular stator 1.

特開２００３−２０９９４６号公報JP 2003-209946 A

従来のカバー構造及びその溶着方法は、以上のように構成されていたため、次のような課題が存在していた。
すなわち、図７におけるカバー８と輪状ステータ１の端面１Ａとの間には、設計的な悪条件であっても、多少のクリアランスが全周にわたって設けられていたが、この状態でレゾルバ等の製品とした場合には、輪状ステータ１とカバー８との間にわずかなクリアランスが必ず空いてしまうため、完成品状態で製品が動くと、カバー８がわずかに動くため、輪状ステータ１の端面１Ａ，１Ｂ上でカバー８と相手方部材７とがこすれることになり、不要なこすれ音が発生していた。 Since the conventional cover structure and the welding method thereof are configured as described above, the following problems exist.
That is, some clearance is provided between the cover 8 and the end face 1A of the annular stator 1 in FIG. 7 over the entire circumference even under adverse design conditions. In this case, since a slight clearance is always provided between the ring-shaped stator 1 and the cover 8, the cover 8 moves slightly when the product moves in the finished product state. The cover 8 and the counterpart member 7 were rubbed on 1B, and unnecessary rubbing noise was generated.

本発明は、以上のような課題を解決するためになされたもので、特に、カバーを相手方部材に溶着する場合、溶着部に位置するカバー溶着部用周端面部のみは、輪状ステータの端面に対して非接触となる非接触部を形成するようにしたカバー構造及びその溶着方法を提供することを目的とする。   The present invention has been made to solve the above-described problems. Particularly, when the cover is welded to the counterpart member, only the peripheral end surface portion for the cover weld portion located in the weld portion is provided on the end surface of the ring-shaped stator. It is an object of the present invention to provide a cover structure and a welding method for forming a non-contact portion that is non-contact with the cover structure.

本発明によるカバー構造は、樹脂で形成されたカバーが輪状ステータを介して、樹脂で形成された相手方部材の突起部に対して、超音波加熱によって溶着され、前記超音波加熱としての溶着ホーンが接触する前記カバーの溶着部に位置するカバー溶着部用周端面部のみは、前記輪状ステータの端面に対して非接触となる非接触部が形成されている構成において、前記非接触部は凹部よりなり、前記カバーの前記カバー溶着部用周端面部以外のカバー周端面部は、前記輪状ステータの端面に接触している構成であり、また、本発明によるカバー構造の溶着方法は、樹脂で形成されたカバーが輪状ステータを介して、樹脂で形成された相手方部材の突起部に対して、超音波加熱によって溶着され、前記超音波加熱としての溶着ホーンが接触する前記カバーの溶着部に位置するカバー溶着部用周端面部のみは、前記輪状ステータの端面に対して非接触となる非接触部が形成されている方法において、前記非接触部は凹部よりなり、前記カバーの前記カバー溶着部用周端面部以外のカバー周端面部は、前記輪状ステータの端面に接触している方法である。 Cover structure according to the present invention, a cover formed of resin through the annular stator, with respect to projections of a mating member made of resin, are welded by ultrasonic heating, the welding horn as ultrasonic heating In the configuration in which the non-contact portion that is non-contact with the end surface of the ring-shaped stator is formed only in the peripheral end surface portion for the cover welding portion that is positioned at the welding portion of the cover , the non-contact portion is a recess. The cover peripheral end surface portion other than the cover weld portion peripheral end surface portion of the cover is in contact with the end surface of the annular stator, and the cover structure welding method according to the present invention is made of resin. and formed cover over the annular stator, with respect to projections of a mating member made of resin, are welded by ultrasonic heating, before the welding horn as ultrasonic heating contacts Only the peripheral end face cover weld portion located welded portion of the cover, there is provided a method of non-contact portion made of a non-contact with the end face of the annular stator is formed, the non-contact portion is made of the recess, wherein the cover peripheral end surface portion other than the peripheral end surface portion cover welded portion of the cover is a method in contact with the end face of the annular stator.

本発明によるカバー構造及びその溶着方法は、以上のように構成されているため、次のような効果を得ることができる。
すなわち、樹脂で形成されたカバーが輪状ステータを介して、樹脂で形成された相手方部材の突起部に対して、超音波加熱によって溶着されているカバー構造において、前記超音波加熱としての溶着ホーンが接触する前記カバーの溶着部に位置するカバー溶着部用周端面部のみは、前記輪状ステータの端面に対して非接触となる非接触部が形成されていることにより、相手方部材の突起部とカバーの溶着部とを超音波溶着する際に、非接触部の存在によってカバーが輪状ステータ側に押された状態となってカバーと輪状ステータとの間にはクリアランスがなくなり、完成後のカバーのガタを抑えることができ、完成品状態で製品が動いても、従来のようなこすれる音の発生を防止することができる。
また、前記非接触部は凹部よりなり、前記カバーの前記カバー溶着部用周端面部以外のカバー周端面部は、前記輪状ステータの端面に接触していることにより、カバー溶着部位である溶着部には十分なクリアランスが凹部によって形成され、カバーの溶着条件も広げることができる。
また、カバーの溶着をしない部分については輪状ステータとのクリアランスをなくすことができるため、溶着時に超音波でカバーが輪状ステータの端面にたたきつけられることもなく、不要な音の発生を抑えた溶着動作を行うことができる。
従って、カバーと輪状ステータ間にはクリアランスがないように設定可能であるため、完成後のカバーのガタを抑えることができ、完成品の状態でレゾルバ等の製品を動かしても従来のような音の発生を防ぐことができる。 Since the cover structure and the welding method thereof according to the present invention are configured as described above, the following effects can be obtained.
That is, in a cover structure in which a cover formed of resin is welded by ultrasonic heating to a protrusion of a mating member formed of resin via a ring-shaped stator, the welding horn as the ultrasonic heating includes Only the peripheral end surface portion for the cover weld portion located at the weld portion of the cover that comes into contact is formed with a non-contact portion that is non-contact with the end surface of the ring-shaped stator, so that the protrusion of the counterpart member and the cover When the welded part is ultrasonically welded, the cover is pushed to the ring-shaped stator side due to the presence of the non-contact part, so that there is no clearance between the cover and the ring-shaped stator, and the backlash of the cover after completion is completed. Therefore, even when the product moves in a finished product state, it is possible to prevent the generation of a rubbing sound as in the prior art.
Further, the non-contact portion is formed of a concave portion, and the cover peripheral end surface portion other than the cover weld portion peripheral end surface portion of the cover is in contact with the end surface of the ring-shaped stator, so that the weld portion is a cover weld portion. In this case, a sufficient clearance is formed by the concave portion, and the welding condition of the cover can be expanded.
In addition, since the clearance with the ring-shaped stator can be eliminated for the parts where the cover is not welded, the cover is not struck by the end face of the ring-shaped stator with ultrasonic waves during welding, and the welding operation suppresses the generation of unnecessary sound. It can be performed.
Therefore, since it can be set so that there is no clearance between the cover and the ring-shaped stator, it is possible to suppress the backlash of the cover after completion, and even if a product such as a resolver is moved in the state of the finished product, the conventional sound Can be prevented.

本発明によるカバー構造を示すレゾルバの一部を示す断面図である。It is sectional drawing which shows a part of resolver which shows the cover structure by this invention. 図１の左側から見た場合の構成図である。It is a block diagram at the time of seeing from the left side of FIG. 従来のカバー構造を示す要部の断面図である。It is sectional drawing of the principal part which shows the conventional cover structure. 図３の溶着部を示すための説明図である。It is explanatory drawing for showing the welding part of FIG. 図３のレゾルバを示す斜視図である。It is a perspective view which shows the resolver of FIG. 図５の輪状ステータの分解斜視図である。It is a disassembled perspective view of the ring-shaped stator of FIG. 従来のレゾルバステータのカバー構造の溶着方法を示す説明図である。It is explanatory drawing which shows the welding method of the cover structure of the conventional resolver stator.

本発明によるカバー構造及びその溶着方法は、カバーを相手方部材に溶着する場合、溶着部に位置するカバー溶着部用周端面部のみは、輪状ステータの端面に対して非接触となる非接触部を有することである。   In the cover structure and the welding method according to the present invention, when the cover is welded to the counterpart member, only the peripheral end surface portion for the cover weld portion located in the weld portion has a non-contact portion that is not in contact with the end surface of the annular stator. Is to have.

以下、図面と共に本発明によるカバー構造及びその溶着方法の好適な実施の形態について説明する。
尚、従来例と同一又は同等部分には、同一符号を付して説明する。
図１において符号８で示されるものは、断面で凹状をなすカバーであり、このカバー８は、例えば、レゾルバの第１輪状巻線カバーをなす樹脂成形品で構成した場合について述べるが、レゾルバ以外の一般製品を対象とすることもできる。 Hereinafter, preferred embodiments of a cover structure and a welding method thereof according to the present invention will be described with reference to the drawings.
In addition, the same code | symbol is attached | subjected and demonstrated to a part the same as that of a prior art example, or an equivalent part.
What is indicated by reference numeral 8 in FIG. 1 is a cover having a concave shape in cross section, and this cover 8 will be described, for example, when it is formed of a resin molded product forming the first annular winding cover of the resolver. It is also possible to target general products.

前記カバー８の外周部８Ｍの端部位置のカバー溶着部用周端面部８Ｎには、輪状ステータ１の端面１Ａに接触しない非接触部３０が形成されており、この非接触部３０は、図２で示される凹部又は所要形状の空隙等から構成されている。
また、前記カバー８の前記非接触部３０以外のカバー周端面部８Ａは、図１及び図２で示されるように、前記輪状ステータ１の端面１Ａに接触するように構成されている。 A non-contact portion 30 that does not contact the end surface 1A of the annular stator 1 is formed on the peripheral end surface portion 8N for the cover welding portion at the end position of the outer peripheral portion 8M of the cover 8, and this non-contact portion 30 is shown in FIG. It is comprised from the recessed part shown by 2, or the space | gap of a required shape.
Further, the cover peripheral end surface portion 8A other than the non-contact portion 30 of the cover 8 is configured to come into contact with the end surface 1A of the annular stator 1 as shown in FIGS.

前記輪状ステータ１の前記端面１Ａとは反対面である他端面１Ｂには、前記カバー８と同じ断面形状をなす第２輪状巻線カバーからなる相手方部材７が前記ステータ巻線５を覆うために設けられており、前記相手方部材７の裏面７Ａには、この相手方部材７と一体状で前記カバー８の裏面８Ｂに向けて突出する突起部７ａが設けられている。
前記突起部７ａは、図１で示されるように、前記輪状ステータ１のスロット又は貫通孔１０を経て、その先端面７ａＡが前記裏面８Ｂに接触するように構成されている。 On the other end surface 1B opposite to the end surface 1A of the annular stator 1, a counterpart member 7 comprising a second annular winding cover having the same cross-sectional shape as the cover 8 covers the stator winding 5. Provided on the back surface 7 </ b> A of the counterpart member 7 is a protrusion 7 a that is integral with the counterpart member 7 and protrudes toward the back surface 8 </ b> B of the cover 8.
As shown in FIG. 1, the protrusion 7 a is configured such that the front end surface 7 a </ b> A contacts the back surface 8 </ b> B through the slot or through hole 10 of the annular stator 1.

前述の構成において、超音波加熱により前記カバー８の溶着部１１を前記突起部７ａに溶着する場合、溶着ホーン２１が接触する前記カバー８の溶着部１１に位置するカバー溶着部用周端面部のみは（図２に示される）、前記輪状ステータ１の端面１Ａに対して非接触となる前記非接触部３０が形成されていると共に、前記カバー８の前記カバー溶着部用周端面部８Ｎ以外のカバー周端面部８Ａは前記輪状ステータ1の端面１Ａに接触しているため、前記溶着ホーン２１を前記溶着部１１に接触させた状態で超音波加熱を行うと、溶着時に前記カバー８に加わる超音波たたきによる歪みが前記非接触部３０によって吸収されるため、前記カバー８のクラック発生が防止される状態でカバー８と突起部７ａとの溶着が行われる。   In the above-described configuration, when the welded portion 11 of the cover 8 is welded to the protruding portion 7a by ultrasonic heating, only the peripheral end surface portion for the cover welded portion located at the welded portion 11 of the cover 8 with which the welding horn 21 contacts. (Shown in FIG. 2) is formed with the non-contact portion 30 that is not in contact with the end surface 1A of the ring-shaped stator 1, and other than the cover weld portion peripheral end surface portion 8N of the cover 8 Since the cover peripheral end surface portion 8A is in contact with the end surface 1A of the ring-shaped stator 1, if ultrasonic heating is performed in a state where the welding horn 21 is in contact with the welding portion 11, the superposition applied to the cover 8 during welding is performed. Since the distortion caused by the sound wave is absorbed by the non-contact portion 30, the cover 8 and the projection 7a are welded in a state where cracks of the cover 8 are prevented.

前述の溶着時において、前記溶着部１１に対して超音波加熱が行われると、前記カバー８と突起部７ａとの結合により、カバー８の外周部８Ｍのカバー周端面部８Ａが輪状ステータ１の端面１Ａに対して押圧されることにより、前記カバー８と端面１Ａとの間にはクリアランスが無い状態でカバー８が取り付けられ、完成品の状態で製品が動いた場合でも、従来のように、カバー８が端面１Ａに対してこすれることによって音が発生していたことも防止される。   At the time of the above-described welding, when ultrasonic heating is performed on the welded portion 11, the cover peripheral end surface portion 8 </ b> A of the outer peripheral portion 8 </ b> M of the cover 8 is connected to the ring-shaped stator 1 by the coupling of the cover 8 and the protrusion 7 a. By pressing against the end surface 1A, the cover 8 is attached with no clearance between the cover 8 and the end surface 1A, and even when the product moves in a finished product state, It is also possible to prevent sound from being generated by rubbing the cover 8 against the end face 1A.

尚、前述の本発明によるカバー構造及びその溶着方法の要旨とするところは、以下の通りである。
すなわち、樹脂で形成されたカバー８が輪状ステータ１を介して、樹脂で形成された相手方部材７の突起部７ａに対して、超音波加熱によって溶着され、前記超音波加熱としての溶着ホーン２１が接触する前記カバー８の溶着部１１に位置するカバー溶着部用周端面部８Ｎのみは、前記輪状ステータ１の端面１Ａに対して非接触となる非接触部３０が形成されているカバー構造及びその溶着方法において、前記非接触部３０は凹部よりなり、前記カバー８の前記カバー溶着部用周端面部８Ｎ以外のカバー周端面部８Ａは、前記輪状ステータ１の端面１Ａに接触しているカバー構造及びその溶着方法である。 The gist of the cover structure and the welding method thereof according to the present invention is as follows.
That is, the cover 8 formed by the resin through the annular stator 1, relative to the protrusion portion 7a of the mating member 7 made of resin, are welded by ultrasonic heating, the welding horn 21 of the ultrasonic heating A cover structure in which a non-contact portion 30 that is not in contact with the end surface 1A of the ring-shaped stator 1 is formed only on the peripheral end surface portion 8N for the cover weld portion located at the weld portion 11 of the cover 8 that contacts In the welding method , the non-contact portion 30 is formed of a recess, and the cover peripheral end surface portion 8A other than the cover weld portion peripheral end surface portion 8N of the cover 8 is in contact with the end surface 1A of the annular stator 1. the structure and welding method.

本発明によるカバー構造及びその溶着方法は、カバーを相手方部材に溶着する場合、溶着部に位置するカバー溶着部用周端面部のみは、輪状ステータの端面に対して非接触となる非接触部を有する構成とし、製品完成後のカバーのガタ及び音の発生を防止することができる。   In the cover structure and the welding method according to the present invention, when the cover is welded to the counterpart member, only the peripheral end surface portion for the cover weld portion located in the weld portion has a non-contact portion that is not in contact with the end surface of the annular stator. It is possible to prevent the backlash and sound of the cover after the product is completed.

１ 輪状ステータ
１Ａ 端面
１Ｂ 他端面
５ ステータ巻線
７ 相手方部材（第２輪状巻線カバー）
７Ａ 裏面
７ａ 突起部
７ａＡ 先端面
８ カバー（第１輪状巻線カバー）
８Ａ カバー周端面部
８Ｂ 表面
８Ｍ 外周部
８Ｎ カバー溶着部用周端面部
１１ 溶着部
２１ 溶着ホーン
３０ 非接触部 DESCRIPTION OF SYMBOLS 1 Ring-shaped stator 1A End surface 1B Other end surface 5 Stator winding 7 Counterpart member (2nd ring-shaped winding cover)
7A Back surface 7a Protrusion 7aA Front end surface 8 Cover (first ring-shaped winding cover)
8A Cover peripheral end surface portion 8B Surface 8M Outer peripheral portion 8N Cover weld portion peripheral end surface portion 11 Welded portion 21 Welding horn 30 Non-contact portion

Claims (2)

樹脂で形成されたカバー(8)が輪状ステータ(1)を介して、樹脂で形成された相手方部材(7)の突起部(7a)に対して、超音波加熱によって溶着され、
前記超音波加熱としての溶着ホーン(21)が接触する前記カバー(8)の溶着部(11)に位置するカバー溶着部用周端面部(8N)のみは、前記輪状ステータ(1)の端面(1A)に対して非接触となる非接触部(30)が形成されているカバー構造において、
前記非接触部(30)は凹部よりなり、前記カバー(8)の前記カバー溶着部用周端面部(8N)以外のカバー周端面部(8A)は、前記輪状ステータ(1)の端面(1A)に接触していることを特徴とするカバー構造。 The cover (8) formed of resin is welded by ultrasonic heating to the protrusion (7a) of the counterpart member (7) formed of resin via the annular stator (1) .
Only the peripheral end surface (8N) for the cover welded portion located at the welded portion (11) of the cover (8) with which the welding horn (21) as the ultrasonic heating contacts is the end surface of the annular stator (1) ( non-contact portion made of a non-contact relative to 1A) (30) in Luke bar structures have been formed,
The non-contact portion (30) comprises a concave portion, and the cover peripheral end surface portion (8A) other than the cover weld portion peripheral end surface portion (8N) of the cover (8) is an end surface (1A) of the annular stator (1). A cover structure characterized by being in contact with) . 樹脂で形成されたカバー(8)が輪状ステータ(1)を介して、樹脂で形成された相手方部材(7)の突起部(7a)に対して、超音波加熱によって溶着され、
前記超音波加熱としての溶着ホーン(21)が接触する前記カバー(8)の溶着部(11)に位置するカバー溶着部用周端面部(8N)のみは、前記輪状ステータ(1)の端面(1A)に対して非接触となる非接触部(30)が形成されているカバー構造の溶着方法において、
前記非接触部(30)は凹部よりなり、前記カバー(8)の前記カバー溶着部用周端面部(8N)以外のカバー周端面部(8A)は、前記輪状ステータ(1)の端面(1A)に接触していることを特徴とするカバー構造の溶着方法。 The cover (8) formed of resin is welded by ultrasonic heating to the protrusion (7a) of the counterpart member (7) formed of resin via the annular stator (1) .
Only the peripheral end surface (8N) for the cover welded portion located at the welded portion (11) of the cover (8) with which the welding horn (21) as the ultrasonic heating contacts is the end surface of the annular stator (1) ( non-contact portion made of a non-contact relative to 1A) (30) in Luke bar structure fusing method are formed,
The non-contact portion (30) comprises a concave portion, and the cover peripheral end surface portion (8A) other than the cover weld portion peripheral end surface portion (8N) of the cover (8) is an end surface (1A) of the annular stator (1). A cover structure welding method, wherein the cover structure is in contact with
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