JP2005045185A - Terminal connecting structure - Google Patents

Terminal connecting structure Download PDF

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JP2005045185A
JP2005045185A JP2003280350A JP2003280350A JP2005045185A JP 2005045185 A JP2005045185 A JP 2005045185A JP 2003280350 A JP2003280350 A JP 2003280350A JP 2003280350 A JP2003280350 A JP 2003280350A JP 2005045185 A JP2005045185 A JP 2005045185A
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terminal
welding
external connection
connection
electronic component
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JP4123098B2 (en
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Kenichi Ohama
健一 大濱
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Denso Corp
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<P>PROBLEM TO BE SOLVED: To provide a terminal connecting structure which is excellent in productive efficiency and in which electronic components and external connecting members can be exchanged easily and inexpensively. <P>SOLUTION: The terminal connecting structure 1 connects the connecting terminals 20 of an electronic component 2 and external connecting members 3 to each other. The terminals 20 and members 3 are respectively provided with terminal fastening portions 21 and member fastening portions 31 respectively having through holes 211 and 311 through which fasteners can be passed. In addition, the terminals 20 and members 3 are respectively provided with terminal welding portions 22 and member welding portions 32 for welding the terminals 20 and members 3 to each other. The terminal welding portions 22 and member welding portions 32 are respectively disposed at positions which are different from the disposed positions of the terminal fastening portions 21 and member fastening portions 31. The terminals 20 and members 3 are welded to each other in the sections in which the terminal welding portions 22 and member welding portions 32 overlap each other. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、電子部品の接続用端子と、上記電子部品を電気回路に接続するための外部接続部材とを接続した端子接続構造に関する。   The present invention relates to a terminal connection structure in which a connection terminal for an electronic component and an external connection member for connecting the electronic component to an electric circuit are connected.

従来より、半導体モジュール等の電子部品が、外部接続部材を介して電気回路に接続された構造がある。例えば、自動車用の走行モーターを制御するインバータ回路等の電力変換装置等においては、特許文献１に示すような半導体モジュールの接続用端子としての主電極端子が、昇圧回路やモータに電気的に接続されたバスラインに、外部接続部材としてのバスバーを介して接続される。
上記接続用端子と上記外部接続部材とは、溶接やネジ留めによって互いに接続することができる。ところが、ネジ留め作業には時間が掛かるため、特に複数の電子部品と外部接続部材とを接続する場合、生産効率の観点から、溶接を用いることが好ましい。 Conventionally, there is a structure in which an electronic component such as a semiconductor module is connected to an electric circuit via an external connection member. For example, in a power conversion device such as an inverter circuit that controls a traveling motor for automobiles, a main electrode terminal as a connection terminal of a semiconductor module as shown in Patent Document 1 is electrically connected to a booster circuit or a motor. The bus line is connected via a bus bar as an external connection member.
The connection terminal and the external connection member can be connected to each other by welding or screwing. However, since the screwing operation takes time, it is preferable to use welding from the viewpoint of production efficiency, particularly when connecting a plurality of electronic components and external connection members.

しかし、溶接によって上記接続用端子と外部接続部材とを接続する場合、溶接不良が生ずると、上記接続用端子と外部接続部材とを取り外すことができないため、電子部品と外部接続部材とを共に新品と取り替える必要がある。また、電子部品及び外部接続部材のいずれか一方が破損した場合にも、両者を共に取り替える必要がある。   However, when the connection terminal and the external connection member are connected by welding, if the welding failure occurs, the connection terminal and the external connection member cannot be removed. Need to be replaced. Further, when either one of the electronic component and the external connection member is damaged, it is necessary to replace both of them.

また、溶接部分を切断して接続用端子と外部接続部材とを切り離して再度溶接するには、切断後にその端面を溶接可能な形状に整える工程が必要となるため、生産効率が著しく低下してしまうおそれがある。
それ故、電子部品や外部接続部材の取替えを容易かつ安価に行うことができないという問題が生ずる。
特開２００１−３０８２６３号公報 In addition, cutting the welded portion to separate the connection terminal and the external connection member and welding again requires a step of adjusting the end surface to a shape that can be welded after cutting, resulting in a significant reduction in production efficiency. There is a risk that.
Therefore, there arises a problem that replacement of electronic parts and external connection members cannot be performed easily and inexpensively.
JP 2001-308263 A

本発明は、かかる従来の問題点に鑑みてなされたもので、生産効率に優れ、電子部品及び外部接続部材の取替えを容易かつ安価に行うことができる端子接続構造を提供しようとするものである。   The present invention has been made in view of such conventional problems, and is intended to provide a terminal connection structure that is excellent in production efficiency and can easily and inexpensively replace electronic components and external connection members. .

本発明は、接続用端子を有する電子部品における上記接続用端子と、上記電子部品を電気回路に接続するための外部接続部材とを接続した端子接続構造であって、
上記接続用端子及び上記外部接続部材には、留め具を挿通することができる貫通孔が形成された端子留め付け用部位及び部材留め付け用部位がそれぞれ設けてあり、
また、上記接続用端子及び上記外部接続部材には、両者を溶接するための端子溶接用部位及び部材溶接用部位がそれぞれ設けてあり、
上記端子溶接用部位及び上記部材溶接用部位は、それぞれ上記端子留め付け用部位及び上記部材留め付け用部位とは異なる位置に配されており、
上記接続用端子と上記外部接続部材とは、上記端子溶接用部位と上記部材溶接用部位とが重なり合った部分において互いに溶接されていることを特徴とする端子接続構造にある（請求項１）。 The present invention is a terminal connection structure in which the connection terminal in an electronic component having a connection terminal, and an external connection member for connecting the electronic component to an electric circuit,
The connection terminal and the external connection member are each provided with a terminal fastening part and a member fastening part in which a through-hole through which the fastener can be inserted is formed,
Further, the connection terminal and the external connection member are provided with a terminal welding part and a member welding part for welding both,
The terminal welding part and the member welding part are arranged at positions different from the terminal fastening part and the member fastening part, respectively.
The connection terminal and the external connection member are welded to each other at a portion where the terminal welding portion and the member welding portion overlap each other (claim 1).

次に、本発明の作用効果につき説明する。
上記端子接続構造は、上記端子溶接用部位及び上記部材溶接用部位における溶接により、上記接続用端子と上記外部接続部材との接続を行うため、生産効率に優れる。 Next, the effects of the present invention will be described.
The terminal connection structure is excellent in production efficiency because the connection terminal and the external connection member are connected by welding at the terminal welding part and the member welding part.

また、上記接続用端子及び上記外部接続部材には、それぞれ上記端子溶接用部位及び上記部材溶接用部位が、上記端子留め付け用部位及び上記部材留め付け用部位とは異なる位置に設けてある。それ故、上記端子接続構造を製造するに当り、上記接続用端子と外部接続部材との接続の際に溶接不良を生じた場合、端子溶接用部位及び部材溶接用部位を切断し、上記端子留め付け用部位及び上記部材留め付け用部位において、留め具によって上記接続用端子と外部接続部材とを改めて接続することができる。   The connection terminal and the external connection member are provided with the terminal welding part and the member welding part at positions different from the terminal fastening part and the member fastening part, respectively. Therefore, in the manufacture of the terminal connection structure, when a welding failure occurs when the connection terminal and the external connection member are connected, the terminal welding part and the member welding part are cut, and the terminal fastening is performed. In the attachment part and the member fastening part, the connection terminal and the external connection member can be connected again by a fastener.

即ち、端子溶接用部位及び部材溶接用部位が、端子留め付け用部位及び部材留め付け用部位とは異なる位置に設けてあるため、端子溶接用部位及び部材溶接用部位を切断除去しても、上記端子留め付け用部位及び部材留め付け用部位は残る。それ故、溶接不良が生じても、電子部品の接続用端子と外部接続部材とを留め具によって接続し直すことができる。
これにより、溶接不良が生じた場合にも、電子部品及び外部接続部材を取り替える必要がない。 That is, since the site for terminal welding and the site for member welding are provided at positions different from the site for terminal fastening and the site for member fastening, even if the site for terminal welding and the site for member welding are cut and removed, The terminal fastening part and the member fastening part remain. Therefore, even if poor welding occurs, the connection terminal of the electronic component and the external connection member can be reconnected by the fastener.
Thereby, even when welding failure occurs, it is not necessary to replace the electronic component and the external connection member.

また、上記電子部品及び外部接続部材のいずれか一方が破損等した場合にも、上記電子部品の接続用端子の端子溶接用部位及び上記外部接続部材の部材溶接用部位を切断することにより、他方の部品については取り替えることなく、破損等した上記一方の部品だけを取り替えることができる。そのため、容易かつ安価に、電子部品や外部接続部材の取替えを行うことができる。   In addition, even when either one of the electronic component and the external connection member is damaged, by cutting the terminal welding portion of the connection terminal of the electronic component and the member welding portion of the external connection member, the other It is possible to replace only one of the above-mentioned damaged parts without replacing the other part. Therefore, it is possible to easily and inexpensively replace electronic components and external connection members.

以上のごとく、本発明によれば、生産効率に優れ、電子部品及び外部接続部材の取替えを容易かつ安価に行うことができる端子接続構造を提供することができる。   As described above, according to the present invention, it is possible to provide a terminal connection structure that is excellent in production efficiency and can easily and inexpensively replace electronic components and external connection members.

本発明（請求項１）において、上記留め具としては、例えばネジ、リベット等を用いることができる。また、上記端子溶接用部位及び部材溶接用部位は、溶接によって溶融する部分が充分に収まる範囲であって、それぞれ上記端子留め付け用部位及び部材留め付け用部位に重ならない部位である。   In the present invention (Claim 1), as the fastener, for example, a screw, a rivet or the like can be used. Moreover, the said part for terminal welding and the part for member welding are the ranges in which the part melt | dissolved by welding is fully settled, and is a part which does not overlap with the said part for terminal fastening, and the part for member fastening, respectively.

また、上記電子部品は、半導体素子を内蔵した半導体モジュールであって、上記接続用端子は、上記半導体素子の主電極に接続された主電極端子からなるものとすることができる（請求項２）。
この場合には、溶接不良や外部接続部材の破損等があっても、半導体モジュールの取替えを必要としないため、安価な端子接続構造を得ることができる。
また、上記端子接続構造は、自動車用の走行モーターを制御するインバータ等の電力変換装置に用いることができる。 The electronic component may be a semiconductor module incorporating a semiconductor element, and the connection terminal may be a main electrode terminal connected to a main electrode of the semiconductor element. .
In this case, since there is no need to replace the semiconductor module even if there is poor welding or damage to the external connection member, an inexpensive terminal connection structure can be obtained.
Moreover, the said terminal connection structure can be used for power converters, such as an inverter which controls the traveling motor for motor vehicles.

また、上記端子溶接用部位及び上記部材溶接用部位は、それぞれ端部から切り込まれたスリット部を有し、該スリット部に沿って上記接続用端子と上記外部接続部材とが溶接されていることが好ましい（請求項３）。
この場合には、溶接面積を大きくすることができるため、より確実に上記接続用端子と外部接続部材とを接続することができる。 The terminal welding part and the member welding part each have a slit part cut from an end part, and the connection terminal and the external connection member are welded along the slit part. (Claim 3).
In this case, since the welding area can be increased, the connection terminal and the external connection member can be more reliably connected.

（実施例１）
本発明の実施例にかかる端子接続構造につき、図１〜図８を用いて説明する。
上記端子接続構造１は、図１に示すごとく、接続用端子２０を有する電子部品２における上記接続用端子２０と、上記電子部品２を電気回路に接続するための外部接続部材３とを接続した構造である。 (Example 1)
A terminal connection structure according to an embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the terminal connection structure 1 connects the connection terminal 20 in the electronic component 2 having the connection terminal 20 and the external connection member 3 for connecting the electronic component 2 to an electric circuit. Structure.

図１〜図３に示すごとく、上記接続用端子２０及び上記外部接続部材３には、留め具としてのネジ４１（図７、図８）を挿通することができる貫通孔２１１、３１１が形成された端子留め付け用部位２１及び部材留め付け用部位３１がそれぞれ設けてある。
また、上記接続用端子２０及び上記外部接続部材３には、両者を溶接するための端子溶接用部位２２及び部材溶接用部位３２がそれぞれ設けてある。 As shown in FIGS. 1 to 3, through holes 211 and 311 through which screws 41 (FIG. 7 and FIG. 8) as fasteners can be inserted are formed in the connection terminal 20 and the external connection member 3. A terminal fastening part 21 and a member fastening part 31 are provided.
Further, the connection terminal 20 and the external connection member 3 are respectively provided with a terminal welding portion 22 and a member welding portion 32 for welding the two.

上記端子溶接用部位２２及び上記部材溶接用部位３２は、それぞれ上記端子留め付け用部位２１及び上記部材留め付け用部位３１とは異なる位置に配されている。
そして、図１、図６に示すごとく、上記接続用端子２０と上記外部接続部材３とは、上記端子溶接用部位２２と上記部材溶接用部位３２とが重なり合った部分において互いに溶接されている。 The terminal welding part 22 and the member welding part 32 are arranged at positions different from the terminal fastening part 21 and the member fastening part 31, respectively.
As shown in FIGS. 1 and 6, the connection terminal 20 and the external connection member 3 are welded to each other at a portion where the terminal welding portion 22 and the member welding portion 32 overlap each other.

上記電子部品２は、ＩＧＢＴ等の半導体素子を内蔵した半導体モジュールであって、上記接続用端子２０は、上記半導体素子の主電極に接続された主電極端子からなる。また、上記電子部品２は、上記半導体素子の制御電極に接続された制御電極端子２５を上記主電極端子（接続用端子２０）と反対側に突出形成してなる。   The electronic component 2 is a semiconductor module including a semiconductor element such as an IGBT, and the connection terminal 20 includes a main electrode terminal connected to the main electrode of the semiconductor element. The electronic component 2 is formed by projecting a control electrode terminal 25 connected to the control electrode of the semiconductor element on the side opposite to the main electrode terminal (connection terminal 20).

また、上記端子接続構造１は、自動車用の走行モーターを制御するインバータ等の電力変換装置に用いることができる。
そして、上記電気回路は、インバータ回路等の電力変換回路であって、上記外部接続端子３は、上記電子部品（半導体モジュール）２をモータや昇圧回路等に接続されたバスラインに接続するためのバスバーである。
図３に示すごとく、上記外部接続部材３は、断面略Ｌ字形状を有し、上記部材留め付け用部位３１と上記部材溶接部位３２とを設けた固定板部３３と、該固定板部３３の一端から略垂直に立設された立設板部３４とを有する。該立設板部３４において、上記外部接続部材３が上記バスラインに接続される。なお、上記外部接続部材３は、断面略Ｕ字形状、断面略Ｓ（Ｚ）字形状を有したもの等を用いても良い。 Moreover, the said terminal connection structure 1 can be used for power converters, such as an inverter which controls the traveling motor for motor vehicles.
The electric circuit is a power conversion circuit such as an inverter circuit, and the external connection terminal 3 connects the electronic component (semiconductor module) 2 to a bus line connected to a motor, a booster circuit, or the like. It is a bus bar.
As shown in FIG. 3, the external connection member 3 has a substantially L-shaped cross section, a fixing plate portion 33 provided with the member fastening portion 31 and the member welding portion 32, and the fixing plate portion 33. And an erected plate part 34 that is erected substantially vertically from one end of the ergonomically. In the standing plate portion 34, the external connection member 3 is connected to the bus line. The external connection member 3 may have a substantially U-shaped cross section, a substantially S (Z) -shaped cross section, or the like.

また、上記端子溶接用部位２２及び部材溶接用部位３２は、溶接によって溶融する溶融部分３５（図６）が充分に収まる範囲であって、それぞれ上記端子留め付け用部位２１及び部材留め付け用部位３１に重ならない部位である。   Further, the terminal welding part 22 and the member welding part 32 are in a range in which a melting part 35 (FIG. 6) melted by welding is sufficiently contained, and the terminal fastening part 21 and the member fastening part, respectively. It is a part which does not overlap with 31.

上記端子接続構造１は、以下のようにして電子部品２の接続用端子２０と外部接続部材３とを接続することにより得られる。
即ち、まず図４、図５に示すごとく、電子部品２の接続用端子２０に外部接続部材３の固定板部３３を重ね合わせる。このとき、端子溶接用部位２２と部材溶接用部位３２とが重なるようにする。また、端子留め付け用部位２１と部材留め付け用部位３１についても、両者の貫通孔２１１、３１１が重なるようにすることが好ましい。 The terminal connection structure 1 is obtained by connecting the connection terminal 20 of the electronic component 2 and the external connection member 3 as follows.
That is, first, as shown in FIGS. 4 and 5, the fixing plate portion 33 of the external connection member 3 is superimposed on the connection terminal 20 of the electronic component 2. At this time, the terminal welding portion 22 and the member welding portion 32 are overlapped. In addition, it is preferable that the through holes 211 and 311 of the terminal fastening part 21 and the member fastening part 31 overlap each other.

次いで、図６に示すごとく、上記端子溶接用部位２２と部材溶接用部位３２とを溶接する。溶接方法としては、例えばマイクロＴｉｇ溶接を用いる。
これにより、上記端子接続構造１を得る。 Next, as shown in FIG. 6, the terminal welding part 22 and the member welding part 32 are welded. As a welding method, for example, micro Tig welding is used.
Thereby, the terminal connection structure 1 is obtained.

そして、上記の溶接において不良が生じた場合には、図６、図７に示すごとく、上記端子溶接用部位２２及び部材溶接用部位３２を切断除去する。
次いで、上記端子留め付け用部位２１と部材留め付け用部位３１とを、両者の貫通孔２１１、３１１が重なるように位置合せする。そして、図７、図８に示すごとく、ネジ４１を、ワッシャー４２を介して上記貫通孔２１１、３１１に挿通して、ナット４３に螺合させることにより、電子部品２の接続用端子２０と外部接続部材３とを接続する。 And when a defect arises in said welding, as shown in FIG. 6, FIG. 7, the said part 22 for terminal welding and the site | part 32 for member welding are cut and removed.
Next, the terminal fastening part 21 and the member fastening part 31 are aligned so that the through-holes 211 and 311 thereof overlap each other. Then, as shown in FIGS. 7 and 8, the screw 41 is inserted into the through holes 211 and 311 through the washer 42 and screwed into the nut 43, whereby the connection terminal 20 of the electronic component 2 and the outside are connected. The connection member 3 is connected.

上記端子接続構造１は、例えば、電力変換装置のように電子部品（半導体モジュール）２を多数配設する装置等に用いられる。それ故、該装置等における多数の端子接続構造の全てが図１、図６に示される溶接による端子接続構造１になる場合もあるが、多数の端子接続構造のうちの一部が図８に示されるネジ留めによる端子接続構造１０となる場合がある。前者は、溶接不良等が生じず、電子部品２の破損等がない場合に実現され、後者は、溶接不良や電子部品２の破損等が一部に生じた場合に実現される。   The terminal connection structure 1 is used, for example, in a device in which a large number of electronic components (semiconductor modules) 2 are arranged, such as a power conversion device. Therefore, there are cases where all of the many terminal connection structures in the apparatus or the like become the terminal connection structure 1 by welding shown in FIGS. 1 and 6, but some of the many terminal connection structures are shown in FIG. It may become the terminal connection structure 10 by the screwing shown. The former is realized when there is no welding failure and the electronic component 2 is not damaged, and the latter is realized when the welding failure or the electronic component 2 is partially damaged.

次に、本例の作用効果につき説明する。
上記端子接続構造１は、図１に示すごとく、上記端子溶接用部位２２及び上記部材溶接用部位３２における溶接により、上記接続用端子２０と上記外部接続部材３との接続を行うため、生産効率に優れる。 Next, the function and effect of this example will be described.
As shown in FIG. 1, the terminal connection structure 1 connects the connection terminal 20 and the external connection member 3 by welding at the terminal welding portion 22 and the member welding portion 32, so that the production efficiency is improved. Excellent.

また、図２、図３に示すごとく、上記接続用端子２０及び上記外部接続部材３には、それぞれ上記端子溶接用部位２２及び上記部材溶接用部位３２が、上記端子留め付け用部位２１及び上記部材留め付け用部位３１とは異なる位置に設けてある。それ故、上記端子接続構造１を製造するに当り、上記接続用端子２０と外部接続部材３との接続の際に溶接不良を生じた場合、図７、図８に示すごとく、端子溶接用部位２２及び部材溶接用部位３２を切断し、上記端子留め付け用部位２１及び上記部材留め付け用部位３１において、ネジ４１によって上記接続用端子２０と外部接続部材３とを改めて接続することができる。   As shown in FIGS. 2 and 3, the connection terminal 20 and the external connection member 3 are respectively provided with the terminal welding part 22 and the member welding part 32, respectively. It is provided at a position different from the member fastening portion 31. Therefore, when the terminal connection structure 1 is manufactured, if welding failure occurs when the connection terminal 20 and the external connection member 3 are connected, as shown in FIGS. 22 and the member welding portion 32 can be cut, and the connection terminal 20 and the external connection member 3 can be reconnected by the screw 41 in the terminal fastening portion 21 and the member fastening portion 31.

即ち、端子溶接用部位２２及び部材溶接用部位３２が、端子留め付け用部位２１及び部材留め付け用部位３１とは異なる位置に設けてあるため、端子溶接用部位２２及び部材溶接用部位３２を切断除去しても、図７に示すごとく、上記端子留め付け用部位２１及び部材留め付け用部位３１は残る。それ故、溶接不良が生じても、図８に示すごとく、電子部品２の接続用端子２０と外部接続部材３とをネジ４１によって接続し直すことができる。
これにより、溶接不良が生じた場合にも、電子部品２及び外部接続部材３を取り替える必要がない。 That is, since the terminal welding part 22 and the member welding part 32 are provided at positions different from the terminal fastening part 21 and the member fastening part 31, the terminal welding part 22 and the member welding part 32 are provided. Even after the cutting and removal, as shown in FIG. 7, the terminal fastening part 21 and the member fastening part 31 remain. Therefore, even if poor welding occurs, the connection terminal 20 of the electronic component 2 and the external connection member 3 can be reconnected by the screw 41 as shown in FIG.
Thereby, even when welding failure occurs, it is not necessary to replace the electronic component 2 and the external connection member 3.

また、上記電子部品２及び外部接続部材３のいずれか一方が破損等した場合にも、上記電子部品２の接続用端子２０の端子溶接用部位２２及び上記外部接続部材３の部材溶接用部位３２を切断することにより、他方の部品については取り替えることなく、破損等した上記一方の部品だけを取り替えることができる。
即ち、端子溶接用部位２２及び部材溶接用部位３２を切断除去しても、端子留め付け用部位２１及び部材留め付け用部位３１は残るため、この部位においてネジ止めすることにより、破損していない方の部品と、破損した方の部品の代替部品とを接続することができる。
そのため、容易かつ安価に、電子部品２や外部接続部材３の取替えを行うことができる。特に上記電子部品２が半導体モジュールであるため、比較的高価な半導体モジュールの取替えが不要となることによる利益は大きい。 Even when either one of the electronic component 2 and the external connection member 3 is damaged, the terminal welding portion 22 of the connection terminal 20 of the electronic component 2 and the member welding portion 32 of the external connection member 3 are also provided. By cutting the above, it is possible to replace only one of the damaged parts without replacing the other part.
That is, even if the terminal welding portion 22 and the member welding portion 32 are cut and removed, the terminal fastening portion 21 and the member fastening portion 31 remain, so that the portion is not damaged by screwing at this portion. One part can be connected to a substitute part of the damaged part.
Therefore, the electronic component 2 and the external connection member 3 can be replaced easily and inexpensively. In particular, since the electronic component 2 is a semiconductor module, there is a great advantage in that it is not necessary to replace a relatively expensive semiconductor module.

以上のごとく、本例によれば、生産効率に優れ、電子部品及び外部接続部材の取替えを容易かつ安価に行うことができる端子接続構造を提供することができる。   As described above, according to this example, it is possible to provide a terminal connection structure that is excellent in production efficiency and that can easily and inexpensively replace electronic components and external connection members.

（実施例２）
本例は、図９〜図１２に示すごとく、電子部品２の接続用端子２０を、本体からの突出方向に対して直交する方向へ延設して、正面視略Ｌ字形状とした例である。
上記接続用端子２０の形状に対応して、図９に示すごとく、外部接続部材３にも延設部分を設けてある。
そして、これらの延設部分を、それぞれ端子溶接用部位２２、部材溶接用部位３２としている（図９〜図１１）。 (Example 2)
In this example, as shown in FIGS. 9 to 12, the connection terminal 20 of the electronic component 2 is extended in a direction orthogonal to the projecting direction from the main body to have a substantially L shape in front view. is there.
Corresponding to the shape of the connection terminal 20, as shown in FIG. 9, the external connection member 3 is also provided with an extending portion.
And these extended parts are set as the part 22 for terminal welding, and the part 32 for member welding, respectively (FIGS. 9-11).

また、溶接不良や電子部品２の破損等があった場合には、図１２に示すごとく、上記端子溶接用部位２２及び部材溶接用部位３２を切断して、端子留め付け用部位２１及び部材留め付け用部位３１において、ネジ４１によって、接続用端子２０と外部接続部材３とを接続する。
その他は、実施例１と同様である。 Further, when there is poor welding or damage of the electronic component 2, as shown in FIG. 12, the terminal welding part 22 and the member welding part 32 are cut, and the terminal fastening part 21 and the member fastening part are cut. In the attachment part 31, the connection terminal 20 and the external connection member 3 are connected by a screw 41.
Others are the same as in the first embodiment.

本例の場合には、上記端子溶接用部位２２及び部材溶接用部位３２を充分に確保することができるため、溶接作業が容易となる。また、溶接不良等が生じた場合にも、端子溶接用部位２２及び部材溶接用部位３２の切断を容易に行うことができる。そのため、生産効率が一層向上すると共に、電子部品２や外部接続部材３の取替えが一層容易となる。
その他は、実施例１と同様である。 In the case of this example, the terminal welding part 22 and the member welding part 32 can be sufficiently secured, so that the welding work is facilitated. Further, even when welding failure occurs, the terminal welding part 22 and the member welding part 32 can be easily cut. Therefore, production efficiency is further improved, and replacement of the electronic component 2 and the external connection member 3 is further facilitated.
Others are the same as in the first embodiment.

（実施例３）
本例は、図１３、図１４に示すごとく、端子溶接用部位２２及び部材溶接用部位３２に、側端部から切り込まれたスリット部２２１、３２１を設け、該スリット部２２１、３２１に沿って接続用端子２０と外部接続部材３とを溶接した例である。
図１４において、符号３５を付した部分は、溶接により接続用端子２０及び外部接続部材３が溶融した溶接部を表す。
その他は、実施例２と同様である。 (Example 3)
In this example, as shown in FIG. 13 and FIG. 14, slit portions 221 and 321 cut from the side end portions are provided in the terminal welding portion 22 and the member welding portion 32, and along the slit portions 221 and 321. This is an example in which the connection terminal 20 and the external connection member 3 are welded.
In FIG. 14, a portion denoted by reference numeral 35 represents a welded portion where the connection terminal 20 and the external connection member 3 are melted by welding.
Others are the same as in the second embodiment.

この場合には、溶接面積を大きくすることができるため、より確実に上記接続用端子２０と外部接続部材３とを接続することができる。
その他、実施例２と同様の作用効果を有する。 In this case, since the welding area can be increased, the connection terminal 20 and the external connection member 3 can be more reliably connected.
In addition, the same effects as those of the second embodiment are obtained.

（実施例４）
本例は、図１５、図１６に示すごとく、端子溶接用部位２２及び部材溶接用部位３２に、上端部から切り込まれたスリット部２２１、３２１を設け、該スリット部２２１、３２１に沿って接続用端子２０と外部接続部材３とを溶接した例である。
その他は、実施例３と同様である。 (Example 4)
In this example, as shown in FIG. 15 and FIG. 16, slit portions 221 and 321 cut from the upper end portion are provided in the terminal welding portion 22 and the member welding portion 32, and along the slit portions 221 and 321. This is an example in which the connection terminal 20 and the external connection member 3 are welded.
Others are the same as in the third embodiment.

この場合にも、溶接面積を大きくすることができるため、より確実に上記接続用端子２０と外部接続部材３とを接続することができる。
その他、実施例２と同様の作用効果を有する。 Also in this case, since the welding area can be increased, the connection terminal 20 and the external connection member 3 can be more reliably connected.
In addition, the same effects as those of the second embodiment are obtained.

実施例１における、電子部品と外部接続部材との端子接続構造の斜視図。3 is a perspective view of a terminal connection structure between an electronic component and an external connection member in Embodiment 1. FIG. 実施例１における、電子部品の斜視図。1 is a perspective view of an electronic component in Embodiment 1. FIG. 実施例１における、外部接続部材の斜視図。3 is a perspective view of an external connection member in Embodiment 1. FIG. 実施例１における、電子部品の側面図。FIG. 3 is a side view of the electronic component in the first embodiment. 実施例１における、電子部品の接続用端子に外部接続部材を重ねた状態の側面図。FIG. 3 is a side view illustrating a state where an external connection member is stacked on a connection terminal of an electronic component in the first embodiment. 実施例１における、電子部品の接続用端子と外部接続部材とを溶接した状態の側面図。The side view of the state which welded the terminal for an electronic component, and the external connection member in Example 1. FIG. 実施例１における、端子溶接用部位及び部材溶接用部位を切断した状態の側面図。The side view in the state where the part for terminal welding and the part for member welding in Example 1 were cut. 実施例１における、電子部品の接続用端子と外部接続部材とをネジ留めした状態の側面図。The side view of the state which screwed the terminal for a connection of an electronic component and the external connection member in Example 1. FIG. 実施例２における、外部接続部材の斜視図。The perspective view of the external connection member in Example 2. FIG. 実施例２における、電子部品の斜視図。FIG. 6 is a perspective view of an electronic component in Example 2. 実施例２における、電子部品と外部接続部材との端子接続構造の斜視図。The perspective view of the terminal connection structure of the electronic component and external connection member in Example 2. FIG. 実施例２における、電子部品と外部接続部材とをネジ留めした状態の斜視図。The perspective view of the state which screwed the electronic component and the external connection member in Example 2. FIG. 実施例３における、電子部品と外部接続部材との溶接前の状態の斜視図。The perspective view of the state before the welding of an electronic component and an external connection member in Example 3. FIG. 実施例３における、電子部品と外部接続部材との端子接続構造の斜視図。The perspective view of the terminal connection structure of the electronic component and external connection member in Example 3. FIG. 実施例４における、電子部品と外部接続部材との溶接前の状態の斜視図。The perspective view of the state before the welding of an electronic component and an external connection member in Example 4. FIG. 実施例４における、電子部品と外部接続部材との端子接続構造の斜視図。The perspective view of the terminal connection structure of the electronic component and external connection member in Example 4. FIG.

符号の説明Explanation of symbols

１ 端子接続構造
２ 電子部品
２０ 接続用端子
２１ 端子留め付け用部位
２１１ 貫通孔
２２ 端子溶接用部位
３ 外部接続部材
３１ 部材留め付け用部位
３１１ 貫通孔
３２ 部材溶接用部位
４１ ネジ
DESCRIPTION OF SYMBOLS 1 Terminal connection structure 2 Electronic component 20 Connection terminal 21 Terminal fastening part 211 Through-hole 22 Terminal welding part 3 External connection member 31 Member fastening part 311 Through-hole 32 Member welding part 41 Screw

Claims (3)

接続用端子を有する電子部品における上記接続用端子と、上記電子部品を電気回路に接続するための外部接続部材とを接続した端子接続構造であって、
上記接続用端子及び上記外部接続部材には、留め具を挿通することができる貫通孔が形成された端子留め付け用部位及び部材留め付け用部位がそれぞれ設けてあり、
また、上記接続用端子及び上記外部接続部材には、両者を溶接するための端子溶接用部位及び部材溶接用部位がそれぞれ設けてあり、
上記端子溶接用部位及び上記部材溶接用部位は、それぞれ上記端子留め付け用部位及び上記部材留め付け用部位とは異なる位置に配されており、
上記接続用端子と上記外部接続部材とは、上記端子溶接用部位と上記部材溶接用部位とが重なり合った部分において互いに溶接されていることを特徴とする端子接続構造。 A terminal connection structure in which the connection terminal in an electronic component having a connection terminal and an external connection member for connecting the electronic component to an electric circuit are connected,
The connection terminal and the external connection member are each provided with a terminal fastening part and a member fastening part in which a through-hole through which the fastener can be inserted is formed,
Further, the connection terminal and the external connection member are provided with a terminal welding part and a member welding part for welding both,
The terminal welding part and the member welding part are arranged at positions different from the terminal fastening part and the member fastening part, respectively.
The terminal connection structure, wherein the connection terminal and the external connection member are welded to each other at a portion where the terminal welding portion and the member welding portion overlap each other. 請求項１において、上記電子部品は、半導体素子を内蔵した半導体モジュールであって、上記接続用端子は、上記半導体素子の主電極に接続された主電極端子からなることを特徴とする端子接続構造。   2. The terminal connection structure according to claim 1, wherein the electronic component is a semiconductor module incorporating a semiconductor element, and the connection terminal includes a main electrode terminal connected to a main electrode of the semiconductor element. . 請求項１又は２において、上記端子溶接用部位及び上記部材溶接用部位は、それぞれ端部から切り込まれたスリット部を有し、該スリット部に沿って上記接続用端子と上記外部接続部材とが溶接されていることを特徴とする端子接続構造。
3. The terminal welding portion and the member welding portion according to claim 1 or 2, each having a slit portion cut from an end portion, and the connection terminal and the external connection member along the slit portion. The terminal connection structure characterized by being welded.
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