JP2009224708A - Terminal connecting structure of electronic component, control unit structure of electric power steering device, and terminal connecting method of electronic component - Google Patents

Terminal connecting structure of electronic component, control unit structure of electric power steering device, and terminal connecting method of electronic component Download PDF

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JP2009224708A
JP2009224708A JP2008069999A JP2008069999A JP2009224708A JP 2009224708 A JP2009224708 A JP 2009224708A JP 2008069999 A JP2008069999 A JP 2008069999A JP 2008069999 A JP2008069999 A JP 2008069999A JP 2009224708 A JP2009224708 A JP 2009224708A
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terminal
bus bar
electronic component
bent
terminals
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JP5080326B2 (en
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Katsumasa Hagiwara
克将 萩原
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Hitachi Ltd
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Hitachi Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal connecting structure of an electronic component, a control unit structure of an electric power steering device and a terminal connecting method of the electronic component, in which connection work can be done with precision by inexpensive arc welding even if there is a terminal connected to a bus bar by welding among plural terminals of the electronic component. <P>SOLUTION: A device case 11 contains a print circuit board 17, and bus bars 19, 21 and 22 molded integrally with a resin mold portion 23. A gate terminal and a source terminal 7 of a MOSFET 1 are bent on one side by 90° so as to be connected to the bus bar 21 by TIG welding, while a drain terminal 3 of the MOSFET 1 is bent on the other side by 90° so as to be connected to a bus bar terminal 19a bent by 90° from the bus bar 19 to extend outside. Terminals 33, 35 etc. of electric components 29, 31 are connected to the bus bar 22 by TIG welding. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、電子部品の端子接続構造及び電動パワーステアリング装置のコントロールユニット構造並びに電子部品の端子接続方法に関する。   The present invention relates to a terminal connection structure for an electronic component, a control unit structure for an electric power steering apparatus, and a terminal connection method for an electronic component.

従来、例えば下記特許文献１には、ＭＯＳＦＥＴから延出する複数の端子のうち、高電位となる端子と他の端子との間隔を広げることで、端子をプリント回路基板に半田付けする際の端子相互の短絡を防止することが記載されている。
ＷＯ２００２／９５８２４ Conventionally, for example, in Patent Document 1 below, among a plurality of terminals extending from a MOSFET, a terminal when soldering a terminal to a printed circuit board by widening a gap between a terminal having a high potential and another terminal is disclosed. It is described that mutual short circuit is prevented.
WO2002 / 95824

しかしながら、上記した従来のものは、端子相互の間隔を広げているものの、複数の端子を同一方向に折り曲げているため、端子の接続を半田付けにより行う場合には、端子同士の短絡をある程度防止できるものの、端子をアーク溶接によってバスバーに接続する場合には、アークが他の端子に飛ぶ恐れがあって精度よい接続作業ができなくなり、それを防ぐためにはアーク溶接に比較してコスト高となるレーザ溶接を行う必要が生じてしまう。   However, although the above-mentioned conventional ones widen the distance between the terminals, a plurality of terminals are bent in the same direction, so that when the terminals are connected by soldering, a short circuit between the terminals is prevented to some extent. Although it is possible, if the terminal is connected to the bus bar by arc welding, the arc may fly to other terminals and accurate connection work cannot be performed, and in order to prevent it, the cost is higher compared to arc welding. It becomes necessary to perform laser welding.

そこで、本発明は、電子部品の複数の端子のなかで、バスバーに溶接により接続する端子がある場合であっても、アーク溶接によって精度よい接続作業をできるようにすることを目的としている。   Therefore, an object of the present invention is to enable accurate connection work by arc welding even when there is a terminal connected to the bus bar by welding among the plurality of terminals of the electronic component.

本発明は、電子部品から延出する複数の端子のうち少なくとも１本を、一方側へ折り曲げてバスバーに接続し、この接続した端子に隣接する他の端子を、他方側に向けて折り曲げて他のバスバーに接続したことを特徴とする。   According to the present invention, at least one of a plurality of terminals extending from an electronic component is bent to one side and connected to a bus bar, and another terminal adjacent to the connected terminal is bent to the other side. It is connected to the bus bar.

本発明によれば、バスバーに接続する端子を、他の端子とは反対側に折り曲げているので、接続作業としてアーク溶接を行っても、発生するアークが他の端子に向けて飛びにくくなり、精度よい接続作業を行うことができる。   According to the present invention, since the terminal connected to the bus bar is bent to the opposite side to the other terminal, even if arc welding is performed as a connection operation, the generated arc is less likely to fly toward the other terminal, Accurate connection work can be performed.

以下、本発明の実施の形態を図面に基づき説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は、本発明の第１の実施形態に係わる電動パワーステアリング装置のコントロールユニット構造を示す断面図である。このコントロールユニット構造は、電動パワーステアリング装置におけるアシストモータの電流制御に、電子部品として半導体素子であるＭＯＳＦＥＴ（電解効果トランジスタ）１を使用している。   FIG. 1 is a cross-sectional view showing a control unit structure of an electric power steering apparatus according to a first embodiment of the present invention. This control unit structure uses a MOSFET (electrolytic effect transistor) 1 that is a semiconductor element as an electronic component for current control of an assist motor in an electric power steering apparatus.

ＭＯＳＦＥＴ１は、図２に斜視図として示すように、複数の端子である３本の端子、すなわち中央のドレイン端子３と、その両側にそれぞれ隣接するゲート端子５及びソース端子７を備えている。   As shown in a perspective view in FIG. 2, the MOSFET 1 includes three terminals as a plurality of terminals, that is, a central drain terminal 3, and a gate terminal 5 and a source terminal 7 adjacent to each other on both sides thereof.

上記した各端子３，５，７は、ＭＯＳＦＥＴ１の本体部９の一側面９ａからほぼ垂直に同一方向に向けて延出する基端部３ａ，５ａ，７ａを備えている。このうちゲート端子５及びソース端子７は、その基端部５ａ，７ａの先端を図１，図２中で一方側である上方側に向けてほぼ９０°の角度で折り曲げて先端部５ｂ，７ｂを形成している。一方ドレイン端子３は、上記一方側と反対の他方側となる図１，図２中で下方側に向けてほぼ９０°の角度で折り曲げて先端部３ｂを形成している。   Each of the terminals 3, 5, and 7 includes base end portions 3a, 5a, and 7a extending substantially vertically from the one side surface 9a of the main body 9 of the MOSFET 1 in the same direction. Among these, the gate terminal 5 and the source terminal 7 have their distal ends 5b and 7b bent at an angle of approximately 90 ° toward the upper side which is one side in FIGS. Is forming. On the other hand, the drain terminal 3 is bent at an angle of about 90 ° toward the lower side in FIGS. 1 and 2 which is the other side opposite to the one side to form the tip 3b.

このようなＭＯＳＦＥＴ１を使用する上記図１に示すコントロールユニット構造は、装置ケース１１が図１中で上部が開口しており、この開口側に蓋１３を装着している。そして、この装置ケース１１内に形成してある取付座１５上に、ＭＯＳＦＥＴ１を取り付け、ＭＯＳＦＥＴ１の前記した３本の端子３，５，７は、装置ケース１１の内方（図１中で右側）に向けて延出している。   In the control unit structure shown in FIG. 1 using such a MOSFET 1, the upper part of the device case 11 is opened in FIG. 1, and a lid 13 is mounted on the opening side. The MOSFET 1 is mounted on a mounting seat 15 formed in the device case 11, and the three terminals 3, 5, and 7 of the MOSFET 1 are located inside the device case 11 (right side in FIG. 1). It extends toward the.

また、装置ケース１１内におけるＭＯＳＦＥＴ１の上方の前記した蓋１３の近傍に、プリント回路基板１７を配置するとともに、このプリント回路基板１７とＭＯＳＦＥＴ１との間にはバスバー基板２４を配置している。バスバー基板２４には、複数のバスバー１９，２１，４１などを樹脂モールド部２３にインサート成形してあり、このバスバー基板２４は、装置ケース１１の内側周囲に形成してある取付面２５上に、図示しないねじなどによって固定している。また、プリント回路基板１７は、上記バスバー基板２４上に図示しないスペーサなどを介してねじによって固定する。   Further, a printed circuit board 17 is disposed in the apparatus case 11 near the lid 13 above the MOSFET 1, and a bus bar substrate 24 is disposed between the printed circuit board 17 and the MOSFET 1. A plurality of bus bars 19, 21, 41 and the like are insert-molded in the resin mold portion 23 on the bus bar substrate 24, and the bus bar substrate 24 is formed on the mounting surface 25 formed around the inner side of the device case 11. It is fixed with screws (not shown). The printed circuit board 17 is fixed on the bus bar board 24 with screws via a spacer (not shown).

なお、ＭＯＳＦＥＴ１を取り付けてある取付座１５は、上記した取付面２５よりもバスバー基板２４から離れた位置にあり、樹脂モールド部２３と取付座１５との間の隙間にＭＯＳＦＥＴ１が配置されることになる。   Note that the mounting seat 15 to which the MOSFET 1 is mounted is located farther from the bus bar substrate 24 than the mounting surface 25 described above, and the MOSFET 1 is disposed in the gap between the resin mold portion 23 and the mounting seat 15. Become.

上記したバスバー基板２４の樹脂モールド部２３には適宜貫通孔２３ａ，２３ｂ，２３ｃを適宜形成してあり、このうち図１中で左側のＭＯＳＦＥＴ１に近接する位置にある貫通孔２３ａにはバスバー１９，２０，２１の端部が露出し、他の貫通孔２３ｂ，２３ｃにはバスバー２２の一部が露出している。なお、他の貫通孔２３ｂ，２３ｃは、貫通孔２３ａよりも図１中で紙面奥側に位置している。   Through holes 23a, 23b, and 23c are appropriately formed in the resin mold portion 23 of the bus bar substrate 24 described above. Of these, the through holes 23a located near the left MOSFET 1 in FIG. The end portions of 20 and 21 are exposed, and part of the bus bar 22 is exposed in the other through holes 23b and 23c. The other through holes 23b and 23c are located on the back side in FIG. 1 with respect to the through hole 23a.

上記ＭＯＳＦＥＴ１に近接する位置にある貫通孔２３ａには、ＭＯＳＦＥＴ１の上方に折り曲げてある２本の端子５，７の先端部５ｂ，７ｂを挿入し、貫通孔２３ａに露出しているバスバー２０，２１のプリント回路基板１７側に向けて折り曲げてあるバスバー接続端子２０ａ，２１ａにアーク溶接である例えばＴＩＧ溶接によりそれぞれ接続する。   The end portions 5b and 7b of the two terminals 5 and 7 bent above the MOSFET 1 are inserted into the through hole 23a located near the MOSFET 1, and the bus bars 20 and 21 exposed in the through hole 23a are inserted. The bus bar connection terminals 20a and 21a that are bent toward the printed circuit board 17 are connected by arc welding, for example, TIG welding.

一方、ＭＯＳＦＥＴ１の下方に折り曲げてある１本の端子３の先端部３ｂについては、他のバスバーであるバスバー１９の一端側を貫通孔２３ａに突出させかつ下方に屈曲させたバスバー接続端子１９ａに、アーク溶接である例えばＴＩＧ溶接によって接続する。   On the other hand, about the front-end | tip part 3b of the one terminal 3 bent below MOSFET1, the one end side of the bus bar 19 which is another bus bar protrudes in the through-hole 23a, and is made to the bus-bar connection terminal 19a bent downward. The connection is made by arc welding, for example, TIG welding.

装置ケース１１の凹部２７内の上部に収容されるコンデンサやコイルなどの電気部品２９，３１の端子３３，３５は、中央，右側の各貫通孔２３ｂ，２３ｃにそれぞれ挿入し、これら貫通孔２３ｂ，２３ｃに露出しているバスバー２２に、ＴＩＧ溶接によって接続する。凹部２７の底部に設置してあるモータからなる電気部品３７の端子３９は、バスバー２２よりも図１中でさらに紙面奥側の、樹脂モールド部２３に形成してある図示しない貫通孔に挿入され、この貫通孔に一部が露出している図示しないバスバーにＴＩＧ溶接によって接続する。   Terminals 33 and 35 of electrical components 29 and 31 such as capacitors and coils housed in the upper portion of the recess 27 of the device case 11 are inserted into the center and right through holes 23b and 23c, respectively. It connects with the bus-bar 22 exposed to 23c by TIG welding. The terminal 39 of the electrical component 37 made of a motor installed at the bottom of the recess 27 is inserted into a through hole (not shown) formed in the resin mold 23 on the back side of the paper in FIG. Then, it is connected by TIG welding to a bus bar (not shown) partially exposed in the through hole.

なお、バスバー１９は、バスバー２０より図１中で紙面奥側でかつバスバー２１より紙面手前側に位置するように、これら各バスバー１９，２０，２１は図１中で紙面に直交する方向にずれており、これらバスバー１９，２０，２１には大電流が流通可能で、他の例えばバスバー４１には制御用信号などが流れて大電流が流れず、このバスバー４１から上方に屈曲して突出して設けたバスバー接続端子４１ａは、プリント回路基板１７に半田付けにより接続している。   The bus bars 19 are shifted in a direction perpendicular to the paper surface in FIG. 1 so that the bus bar 19 is located on the rear side of the paper surface in FIG. 1 from the bus bar 20 and on the front side of the paper surface from the bus bar 21. A large current can flow through these bus bars 19, 20, and 21. For example, a control signal or the like flows through the other bus bar 41, so that a large current does not flow. The provided bus bar connection terminal 41a is connected to the printed circuit board 17 by soldering.

また、バスバー基板２４には、上記の各バスバー１９，２０，２１，４１のほかにも多数のバスバーをインサート成形しており、これらについても大電流が流れるものについてはプリント回路基板１７に接続せず、大電流が流れないものについてはバスバー接続端子４１ａと同様にプリント回路基板１７に接続する。   In addition to the bus bars 19, 20, 21, 41 described above, many bus bars are insert-molded on the bus bar board 24, and those that carry a large current are also connected to the printed circuit board 17. In the case where a large current does not flow, the printed circuit board 17 is connected in the same manner as the bus bar connection terminal 41a.

上記した第１の実施形態によれば、ＭＯＳＦＥＴ１の３本の端子３，５，７のうち大電流が流れるドレイン端子３のみを下方に向けて折り曲げているので、その折り曲げた先端部３ｂと他の２本の端子５，７のバスバー２０，２１に接続する先端部５ｂ，７ｂとの間隔（距離）が広くなり、この先端部３ｂをバスバー接続端子１９ａにＴＩＧ溶接により接続しても、発生するアークが他の端子であるゲート端子５やソース端子７に飛ぶことを抑制でき、精度よい接続作業を行うことができる。   According to the first embodiment described above, only the drain terminal 3 through which a large current flows out of the three terminals 3, 5 and 7 of the MOSFET 1 is bent downward, so that the bent tip 3b and others The distance (distance) between the two terminals 5 and 7 connected to the bus bars 20 and 21 of the two terminals 5 and 7 is increased, and even if this tip 3b is connected to the bus bar connection terminal 19a by TIG welding Therefore, it is possible to prevent the arc to be generated from jumping to the other terminals, that is, the gate terminal 5 and the source terminal 7, and to perform accurate connection work.

この際、電気部品２９，３１，３７の各端子３３，３５，３９をバスバー２２などに接続するなど他の部品をバスバー２２や他のバスバーに接続する作業についてもＴＩＧ溶接を使用しており、これらの溶接作業と同様に、ＭＯＳＦＥＴ１のドレイン端子３のバスバー１９への接続も同一の接続工法（ＴＩＧ溶接）で行えるので、製造コストを低く抑えることができる。   At this time, TIG welding is also used for connecting other parts to the bus bar 22 and other bus bars, such as connecting the terminals 33, 35, and 39 of the electrical parts 29, 31, and 37 to the bus bar 22 and the like. Similarly to these welding operations, the drain terminal 3 of the MOSFET 1 can be connected to the bus bar 19 by the same connection method (TIG welding), so that the manufacturing cost can be kept low.

図３は、本発明の第２の実施形態に係わる電動パワーステアリング装置のコントロールユニット構造を示す断面図、図４は第２の実施形態に係わるＭＯＳＦＥＴの斜視図である。   FIG. 3 is a cross-sectional view showing a control unit structure of an electric power steering apparatus according to the second embodiment of the present invention, and FIG. 4 is a perspective view of a MOSFET according to the second embodiment.

第２の実施形態は、ＭＯＳＦＥＴ１のドレイン端子３を、ゲート端子５及びソース端子７の先端部５ｂ，７ｂと同方向に折り曲げた第１の折り曲げ部３ｃと、第１の折り曲げ部３ｃから基端部３ａの延出方向と同方向に向けて折り曲げた第２の折り曲げ部３ｄとを有し、この第２の折り曲げ部３ｄを先端部として前記したバスバー１９にアーク溶接により接続している。   In the second embodiment, the drain terminal 3 of the MOSFET 1 is bent in the same direction as the distal end portions 5b and 7b of the gate terminal 5 and the source terminal 7, and the base end from the first bent portion 3c. The second bent portion 3d is bent in the same direction as the extending direction of the portion 3a, and the second bent portion 3d is connected to the bus bar 19 by arc welding using the second bent portion 3d as a tip portion.

すなわち、本実施形態のドレイン端子３は、第１の折り曲げ部３ｃと第２の折り曲げ部３ｄとでほぼＬ字形状に形成してあり、このほぼＬ字形状部の少なくとも第２の折り曲げ部３ｄを樹脂モールド部２３の貫通孔２３ａに挿入し、貫通孔２３ａに露出させてあるバスバー１９の下方に折り曲げたバスバー接続端子１９ａに接続する。   That is, the drain terminal 3 of the present embodiment is formed in a substantially L shape by the first bent portion 3c and the second bent portion 3d, and at least the second bent portion 3d of the substantially L-shaped portion. Is inserted into the through hole 23a of the resin mold portion 23 and connected to the bus bar connection terminal 19a bent downward of the bus bar 19 exposed in the through hole 23a.

したがって、このバスバー接続端子１９ａは 貫通孔２３ａから外部に突出させる必要がなく、第１の実施形態に比較して短く形成でき、バスバー基板２４からバスバー接続端子１９ａが第１の実施形態のように突出しないので、バスバー基板２４の取り扱い性が向上する。   Therefore, the bus bar connection terminal 19a does not need to protrude to the outside from the through hole 23a, can be formed shorter than the first embodiment, and the bus bar connection terminal 19a can be formed from the bus bar substrate 24 as in the first embodiment. Since it does not protrude, the handleability of the bus bar substrate 24 is improved.

その他の構成は、前記図１，図２に示した第１の実施形態と同様である。   Other configurations are the same as those of the first embodiment shown in FIGS.

上記した第２の実施形態によれば、ＭＯＳＦＥＴ１の３本の端子３，５，７のうち大電流が流れるドレイン端子３のみを途中で第２の折り曲げ部３ｄとして折り曲げているので、その折り曲げた先端部と他の２本の端子５，７のバスバー２０，２１に接続する先端部５ｂ，７ｂとの間隔（距離）が広くなり、この先端部（第２の折り曲げ部３ｄ）をバスバー接続端子１９ａにＴＩＧ溶接により接続しても、発生するアークが他の端子であるゲート端子５やソース端子７に飛ぶことを抑制でき、精度よい接続作業を行うことができるなど、第１の実施形態と同様の効果を得ることができる。   According to the second embodiment described above, only the drain terminal 3 through which a large current flows out of the three terminals 3, 5 and 7 of the MOSFET 1 is bent as the second bent portion 3d in the middle. The space | interval (distance) between the front-end | tip part and the front-end | tip parts 5b and 7b connected to the bus-bars 20 and 21 of two other terminals 5 and 7 becomes wide, and this front-end | tip part (2nd bending part 3d) is made into a bus-bar connection terminal. Even if it is connected to 19a by TIG welding, it is possible to suppress the generated arc from jumping to the other terminals such as the gate terminal 5 and the source terminal 7 and to perform a precise connection operation. Similar effects can be obtained.

図５は、上記したような各実施形態で使用する電動パワーステアリング装置のコントロールユニット構造の一例を示す分解斜視図である。但し、この分解斜視図は、前記した各実施形態のものとは各部品の配置構造などが異なっており、図５のものと同一のものではない。   FIG. 5 is an exploded perspective view showing an example of the control unit structure of the electric power steering apparatus used in each of the above-described embodiments. However, this exploded perspective view differs from the above-described embodiments in the arrangement structure of each component and is not the same as that in FIG.

図５において、装置ケース１１の材質は、熱伝導性の比較的良好な金属部材（例アルミニウム合金など）であり、例えば鋳造（アルミダイキャストなど）によって形成される。この装置ケース１１にはモータ３７を収容するモータ収容部２７と、このモータ収容部２７に隣接して形成される部品収納部４３と、が隔壁４５を挟んで形成されている。   In FIG. 5, the material of the device case 11 is a metal member (eg, aluminum alloy) having relatively good thermal conductivity, and is formed by casting (eg, aluminum die casting). In the device case 11, a motor accommodating portion 27 that accommodates a motor 37 and a component accommodating portion 43 formed adjacent to the motor accommodating portion 27 are formed with a partition wall 45 interposed therebetween.

また、ここでは、３つのＭＯＳＦＥＴ１を基板４７上に設置したものが２セット設けられ、この基板４７と、装置ケース１１に形成してある基板４７の載置面１５との間には、熱伝導性部材としてのほぼ長方形状の比較的薄いマット４９を介装してある。   In addition, here, two sets of three MOSFETs 1 installed on a substrate 47 are provided, and between this substrate 47 and the mounting surface 15 of the substrate 47 formed in the device case 11, heat conduction is provided. A relatively thin mat 49 having a substantially rectangular shape is interposed as a sex member.

また、装置ケース１１の部品収納部４３に対応する部分には、装置ケース１１の内外を電気的接続するためのコネクタ５１，５３を設けている。コネクタ５１は、外部のＥＣＵやセンサなどにつながるハーネスを接続する信号用コネクタであり、コネクタ５３は、直流電源に繋がるハーネスを接続する電源用コネクタである。   Further, connectors 51 and 53 for electrically connecting the inside and outside of the device case 11 are provided at a portion corresponding to the component storage portion 43 of the device case 11. The connector 51 is a signal connector for connecting a harness connected to an external ECU or sensor, and the connector 53 is a power connector for connecting a harness connected to a DC power source.

本発明の第１の実施形態に係わる電動パワーステアリング装置のコントロールユニット構造の断面図である。It is sectional drawing of the control unit structure of the electric power steering apparatus concerning the 1st Embodiment of this invention. 図１のコントロールユニット構造に使用するＭＯＳＦＥＴの斜視図である。It is a perspective view of MOSFET used for the control unit structure of FIG. 本発明の第２の実施形態に係わる電動パワーステアリング装置のコントロールユニット構造の断面図である。It is sectional drawing of the control unit structure of the electric power steering apparatus concerning the 2nd Embodiment of this invention. 図３のコントロールユニット構造に使用するＭＯＳＦＥＴの斜視図である。It is a perspective view of MOSFET used for the control unit structure of FIG. 電動パワーステアリング装置のコントロールユニット構造の一例を示す分解斜視図である。It is a disassembled perspective view which shows an example of the control unit structure of an electric power steering device.

符号の説明Explanation of symbols

１ ＭＯＳＦＥＴ（電子部品）
３ ドレイン端子（他のバスバーに接続した他の端子）
５ ゲート端子（バスバーに接続した端子）
７ ソース端子（バスバーに接続した端子）
１１ 装置ケース
１７ プリント回路基板
１９ 他のバスバー
２０，２１ バスバー 1 MOSFET (electronic parts)
3 Drain terminal (other terminals connected to other bus bars)
5 Gate terminal (terminal connected to bus bar)
7 Source terminal (terminal connected to bus bar)
11 Device Case 17 Printed Circuit Board 19 Other Bus Bar 20, 21 Bus Bar

Claims (6)

電子部品から延出する複数の端子のうち少なくとも１本を、前記延出方向から一方側へ折り曲げてバスバーに接続し、このバスバーに接続した前記端子に隣接する他の端子を、前記一方側と反対の他方側に向けて折り曲げて他のバスバーに接続したことを特徴とする電子部品の端子接続構造。   At least one of the plurality of terminals extending from the electronic component is bent to one side from the extending direction and connected to the bus bar, and another terminal adjacent to the terminal connected to the bus bar is connected to the one side. A terminal connection structure for an electronic component, wherein the terminal connection structure is bent toward the other side and connected to another bus bar. 前記電子部品はＭＯＳＦＥＴであり、このＭＯＳＦＥＴの複数の端子のうちドレイン端子を前記他のバスバーに接続したことを特徴とする請求項１に記載の電子部品の端子接続構造。   The electronic component terminal connection structure according to claim 1, wherein the electronic component is a MOSFET, and a drain terminal of the plurality of terminals of the MOSFET is connected to the other bus bar. 装置ケース内に、電動パワーステアリング装置におけるアシストモータの電流制御を行う駆動回路を備えるプリント回路基板及びバスバーを設け、前記駆動回路に使用するＭＯＳＦＥＴから延出する複数の端子のうちゲート端子及びソース端子を、前記延出方向から一方側へ折り曲げて前記バスバーに接続し、このバスバーに接続した前記ゲート端子及びソース端子に隣接するドレイン端子を、前記一方側と反対の他方側に向けて折り曲げて前記他のバスバーに接続したことを特徴とする電動パワーステアリング装置のコントロールユニット構造。   In the device case, a printed circuit board and a bus bar provided with a drive circuit for controlling the current of the assist motor in the electric power steering device are provided, and a gate terminal and a source terminal among a plurality of terminals extending from the MOSFET used for the drive circuit Is bent from the extending direction to one side and connected to the bus bar, the gate terminal connected to the bus bar and the drain terminal adjacent to the source terminal are bent toward the other side opposite to the one side, and the A control unit structure for an electric power steering apparatus, characterized in that it is connected to another bus bar. 電子部品から延出する複数の端子のうち少なくとも１本を、前記延出方向から一方側へ折り曲げて前記バスバーにアーク溶接により接続する一方、このバスバーに接続した前記端子に隣接する他の端子を、前記一方側と反対の他方側に向けて折り曲げて他のバスバーにアーク溶接により接続することを特徴とする電子部品の端子接続方法。   At least one of a plurality of terminals extending from the electronic component is bent to one side from the extending direction and connected to the bus bar by arc welding, while another terminal adjacent to the terminal connected to the bus bar is connected A terminal connecting method for an electronic component, wherein the terminal is bent toward the other side opposite to the one side and connected to another bus bar by arc welding. 電子部品から延出する複数の端子のうち少なくとも１本を、前記延出方向から一方側へ折り曲げてバスバーに接続し、このバスバーに接続した前記端子に隣接する他の端子は、前記バスバーに接続した端子と同方向に折り曲げた第１の折り曲げ部と、この第１の折り曲げ部からさらに前記延出方向と同方向に向けて折り曲げた第２の折り曲げ部とを有し、この第２の折り曲げ部を他のバスバーに接続したことを特徴とする電子部品の端子接続構造。   At least one of a plurality of terminals extending from the electronic component is bent to one side from the extending direction and connected to the bus bar, and another terminal adjacent to the terminal connected to the bus bar is connected to the bus bar. A first bent portion bent in the same direction as the terminal, and a second bent portion further bent in the same direction as the extending direction from the first bent portion. A terminal connection structure for an electronic component, wherein the part is connected to another bus bar. 前記他の端子は、前記第１の折り曲げ部と第２の折り曲げ部とでほぼＬ字形状に形成して前記他のバスバーに接続したことを特徴とする請求項５に記載の電子部品の端子接続構造。   6. The terminal of the electronic component according to claim 5, wherein the other terminal is formed in a substantially L shape by the first bent portion and the second bent portion and connected to the other bus bar. Connection structure.
JP2008069999A 2008-03-18 2008-03-18 Terminal connection structure of electronic component, control unit structure of electric power steering device, and terminal connection method of electronic component Expired - Fee Related JP5080326B2 (en)

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