JP4171836B2 - Earth terminal and electronic device including the earth terminal - Google Patents

Earth terminal and electronic device including the earth terminal Download PDF

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JP4171836B2
JP4171836B2 JP2005366397A JP2005366397A JP4171836B2 JP 4171836 B2 JP4171836 B2 JP 4171836B2 JP 2005366397 A JP2005366397 A JP 2005366397A JP 2005366397 A JP2005366397 A JP 2005366397A JP 4171836 B2 JP4171836 B2 JP 4171836B2
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elastic
flat plate
central flat
earth terminal
portions
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JP2007172926A (en
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崇 中村
滋 弦弓
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SMK Corp
Sony Interactive Entertainment Inc
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Sony Computer Entertainment Inc
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Priority to HK07112532.3A priority patent/HK1107192A1/en
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Description

本発明は、電子機器でアースをとり且つ放熱を行わせるために用いるアースターミナル及び該アースターミナルを備える電子機器に関するものである。   The present invention relates to an earth terminal used for grounding an electronic device and performing heat dissipation, and an electronic device including the earth terminal.

従来のアースターミナルは、相手に自由端片を接触させる片持ちの金属ばね、または相手に接点部を接触させる片持ちの金属ばねで構成されていた（例えば、特許文献１参照。）。
特許第３３３８９７６号公報 A conventional earth terminal is composed of a cantilevered metal spring that contacts a free end piece with a counterpart, or a cantilevered metal spring that contacts a contact portion with a counterpart (see, for example, Patent Document 1).
Japanese Patent No. 3338976

しかしながら、このような従来のアースターミナルは、相手に対する接触部が１つの線状をなす１線または１つの点状をなす１点なので、接地面積が小さく、放熱を十分に行えない問題点があった。   However, such a conventional earth terminal has a problem that the ground contact area is small and heat radiation cannot be performed sufficiently because the contact portion with the counterpart is one line forming one line or one point forming one dot. It was.

本発明の目的は、相手に対する接触面積を大きくして、放熱効率を向上させることができるアースターミナルを提供することにある。   An object of the present invention is to provide an earth terminal capable of increasing a contact area with a counterpart and improving heat dissipation efficiency.

上記の目的を達成する本発明の構成を説明すると、請求項１に記載の発明の特徴は、弾性金属板の中央部が中央平面板部となっており、該中央平面板部の両側が弾性屈曲部として同じ板面側にそれぞれ折り返され、前記各弾性屈曲部の各端部にそれぞれ接触部が設けられているアースターミナルにおいて、前記両弾性屈曲部の内の一方の弾性屈曲部の全体幅は前記中央平板部より細幅に形成され、
前記両弾性屈曲部の内の他方の弾性屈曲部は、前記弾性金属板に窓部を形成することにより該窓部の両側に残された弾性金属板を前記他方の弾性屈曲部となすとともに、該弾性屈曲部の先端に前記窓部の中央平面板部とは反対側の端部側に残された前記弾性金属板を前記各他方の前記弾性屈曲部と一体の平板状をした接触部となし、
前記他方の弾性屈曲部間の窓部内に前記一方の前記弾性屈曲部を通して該両弾性屈曲部がそれぞれ前記中央平面板部の板面上に折り返されていることにある。 The structure of the present invention that achieves the above object will be described. The invention according to claim 1 is characterized in that the central portion of the elastic metal plate is a central flat plate portion, and both sides of the central flat plate portion are elastic. In an earth terminal that is folded back to the same plate surface side as a bent portion and provided with a contact portion at each end of each elastic bent portion, the entire width of one elastic bent portion of both elastic bent portions Is formed narrower than the central plate part,
The other elastic bending portion of the two elastic bending portions forms the elastic metal plate left on both sides of the window portion by forming a window portion on the elastic metal plate, and becomes the other elastic bending portion, a central flat plate portion of the window portion at the tip of the elastic bent portion and the contact portion opposite the elastic metal plate left on the end of that the respective other of the resilient bent portion integral with plate-shaped None,
Both elastic bent portions are folded back on the plate surface of the central flat plate portion through the one elastic bent portion in the window portion between the other elastic bent portions.

また、請求項２に記載の発明の特徴は、請求項１の構成に加え、前記中央平面板部の一端側の幅方向中央よりこれと一体に、該中央平面板部とは細幅に成形した前記一方の弾性屈曲部を延設され、かつ、前記中央平板部の他端の幅方向中央部分に前記窓部を位置させることにより前記他方の弾性屈曲部を該中央平面板部の幅方向両端に延設されていることにある。   The invention according to claim 2 is characterized in that, in addition to the configuration of claim 1, the center plane plate portion is integrally formed from the center in the width direction on one end side of the center plane plate portion so as to be narrow. The one elastic bent portion is extended, and the window portion is positioned in the center portion in the width direction of the other end of the central flat plate portion, thereby moving the other elastic bent portion in the width direction of the central flat plate portion. It exists in extending at both ends.

更に、請求項２に記載の発明の特徴は、請求項１又は２の構成を具備したアースターミナルを備える電子機器にある。   Furthermore, a feature of the invention described in claim 2 resides in an electronic device including a ground terminal having the configuration of claim 1 or 2.

本発明のアースターミナルでは、弾性金属板の中央部が中央平面板部となっており、該中央平面板部の両側が同じ板面側に弾性屈曲部としてそれぞれ折り返され、各弾性屈曲部の各端部にそれぞれ接触部が設けられているので、弾性金属板の両端が接触部となっており、相手に対する接触面積を大きくして、放熱効率を向上させることができるものであり、更に、前記両弾性屈曲部の内の一方の弾性屈曲部の全体幅は前記中央平板部より細幅に形成され、前記両弾性屈曲部の内の他方の弾性屈曲部は、前記弾性金属板に窓部を形成することにより該窓部の両側に残された弾性金属板を前記他方の弾性屈曲部となすとともに、該弾性屈曲部の先端に前記窓部の中央平面板部とは反対側の端部側に残された前記弾性金属板を前記各他方の前記弾性屈曲部と一体の平板状をした接触部となし、前記他方の弾性屈曲部間の窓部内に前記一方の前記弾性屈曲部を通して該両弾性屈曲部がそれぞれ前記中央平面板部の板面上に折り返されていることにより、一方の接触部は相手に線または点接触し、他方の接触部は相手に面接触し、相手に対する接触面積が著しく大きくなり、放熱効率を著しく向上させることができる。 In the ground terminal of the present invention, the central portion of the elastic metal plate is a central flat plate portion, and both sides of the central flat plate portion are folded back as elastic bent portions on the same plate surface side. Since the contact portions are respectively provided at the end portions, both ends of the elastic metal plate are contact portions, the contact area with the counterpart can be increased, and the heat dissipation efficiency can be improved. The entire width of one of the elastic bent portions is narrower than the central flat plate portion, and the other elastic bent portion of the two elastic bent portions has a window portion on the elastic metal plate. By forming the elastic metal plate left on both sides of the window portion as the other elastic bent portion, the end of the elastic bent portion on the side opposite to the central flat plate portion of the window portion each other of the elastic the elastic metal plate left on It forms a flat plate-like contact portion with the curved portion, and both elastic bent portions pass through the one elastic bent portion into the window portion between the other elastic bent portions, respectively, on the plate surface of the central plane plate portion. By being folded back, one contact part makes line or point contact with the other party, and the other contact part makes surface contact with the other party, so that the contact area with the other party is remarkably increased and the heat radiation efficiency can be remarkably improved.

また、前記中央平面板部の一端側の幅方向中央よりこれと一体に、該中央平面板部とは細幅に成形した前記一方の弾性屈曲部を延設され、かつ、前記中央平板部の他端の幅方向中央部分に前記窓部を位置させることにより前記他方の弾性屈曲部を該中央平面板部の幅方向両端に延設させたことにより、材料とする弾性金属板の歩留まりが大きく、低コストで製造できる。   Further, from the center in the width direction on one end side of the central flat plate portion, the one elastic bent portion formed so as to be narrow with the central flat plate portion is extended, and the central flat plate portion The yield of the elastic metal plate as a material is increased by locating the window portion at the center portion in the width direction of the other end and extending the other elastic bent portion at both ends in the width direction of the center plane plate portion. Can be manufactured at low cost.

更に、上述の如きアースターミナルを電子機器に使用することにより、低コストで、高い放熱効果が得られ、加熱によって影響される電子部品の機能を常に良好な状態に維持させることが可能となる。   Furthermore, by using the earth terminal as described above for an electronic device, a high heat dissipation effect can be obtained at a low cost, and the function of the electronic component affected by the heating can always be maintained in a good state.

以下、本発明に係るアースターミナルを実施するための最良の形態における一例を図面を参照して説明する。   Hereinafter, an example of the best mode for carrying out an earth terminal according to the present invention will be described with reference to the drawings.

本例のアースターミナル１は、相手に接触させてアースと放熱を行わせるアースターミナルである。   The earth terminal 1 of this example is an earth terminal that is brought into contact with the other party to perform earthing and heat dissipation.

このアースターミナル１は、銅合金等の弾性金属板の中央部が中央平面板部２となっている。該中央平面板部２は、その片面が接触板面２ａとなっている。該中央平面板部２の幅方向の両側寄りの部分には、該中央平面板部２の長手方向に沿って１対の打ち出し部２ｂが該中央平面板部２の反対側の板面２ｃに打ち出されている。   In the earth terminal 1, a central portion of an elastic metal plate such as a copper alloy is a central flat plate portion 2. One side of the central flat plate portion 2 is a contact plate surface 2a. A pair of projecting portions 2b are formed on the plate surface 2c opposite to the central flat plate portion 2 along the longitudinal direction of the central flat plate portion 2 at portions near both sides in the width direction of the central flat plate portion 2. It has been launched.

該中央平面板部２の両側が同じ板面２ｃ側に弾性屈曲部３，４としてそれぞれ折り返されている。各弾性屈曲部３，４の各端部にそれぞれ接触部５，６が設けられている。   Both sides of the central plane plate portion 2 are folded back as elastic bent portions 3 and 4 on the same plate surface 2c side. Contact portions 5 and 6 are provided at the end portions of the elastic bent portions 3 and 4, respectively.

前記両弾性屈曲部の内の一方の弾性屈曲部３の全体幅は、図６の展開図に示すように、中央平面板部２の全幅より狭く、該一方の弾性屈曲部３は中央平面板部２の端部でその幅方向の中央部より延設されてその基部で曲げられて中央平面板部２の板面上に折り返されている。該一方の弾性屈曲部３の先端は、その幅で中央平面板部２から離間する方向に曲げられて一方の接触部５となっている。なお、一方の接触部５は相手に線接触させる構造でも、点接触させる構造でもよい。   The overall width of one of the elastic bent portions 3 is narrower than the entire width of the central flat plate portion 2 as shown in the development view of FIG. 6, and the one elastic bent portion 3 is the central flat plate. The end portion of the portion 2 extends from the central portion in the width direction, is bent at the base portion, and is folded on the plate surface of the central flat plate portion 2. The tip of the one elastic bent portion 3 is bent in a direction away from the central flat plate portion 2 by its width to form one contact portion 5. One contact portion 5 may have a structure in which a line contact is made with the other party or a point contact structure.

他方の弾性屈曲部４は、中央平面板部２の他端側を延長した配置の矩形状の弾性金属板に窓部７を刳り抜き成形することによってその窓部の両側部に残される弾性金属板部分を複数の弾性屈曲部４，４としており、この他方の弾性屈曲部４，４の全体の総幅は中央平面板部２の全幅と同じ幅となっている。   The other elastic bent portion 4 is an elastic metal left on both sides of the window portion by punching and forming the window portion 7 in a rectangular elastic metal plate arranged to extend the other end side of the central plane plate portion 2. The plate portion has a plurality of elastic bent portions 4, 4, and the total width of the other elastic bent portions 4, 4 is the same as the total width of the central flat plate portion 2.

また、この窓部７の中央平面板部２とは反対側の端部側に残された弾性金属板部分を、平板状をした他方の接触部６としており、他方の弾性屈曲部４，４の先端を中央平面板部２上方向に折り返すことによって該中央平面板部２と略平行な配置としている。これによって他方の接触部６は前記弾性屈曲部４，４と一体で、前記中央平面板部２と同幅に成形されている。 Further, the elastic metal plate portion left on the end side opposite to the central flat plate portion 2 of the window portion 7 is used as the other contact portion 6 having a flat plate shape, and the other elastic bent portions 4, 4 are used. The center flat plate portion 2 is folded back in the upper direction so as to be arranged substantially parallel to the central flat plate portion 2. Thus the other contact portion 6 integral with the resilient bent portions 4, and the central flat plate portion 2 are formed in the same width.

また、窓部７は、一方の弾性屈曲部３が挿入されて自由に動作できる幅に成形されている。該他方の弾性屈曲部４は、該弾性屈曲部４，４間の窓部７に一方の弾性屈曲部３を中に通し、該他方の弾性屈曲部４の基部で曲げられて中央平面板部２の板面上に折り返されている。これによって一方及び他方の両弾性屈曲部３，４は、図２に示すように正面から見た場合にＸ型に交差した配置となっており、かつ両弾性屈曲部３，４の先端間に平板状をした他方の接触部６が配置された状態となっている。   Moreover, the window part 7 is shape | molded by the width | variety which can be freely operated by inserting one elastic bending part 3. The other elastic bent portion 4 is formed by passing one elastic bent portion 3 through the window 7 between the elastic bent portions 4 and 4 and bent at the base of the other elastic bent portion 4 so as to be a central flat plate portion. 2 is folded on the plate surface. As a result, the one and the other elastic bent portions 3 and 4 are arranged so as to intersect the X shape when viewed from the front as shown in FIG. The other contact portion 6 having a flat plate shape is arranged.

このような構造のアースターミナル１を電子機器に使用する際には、例えば図８に示すように中央平面板部２の接触板面２ａを電子機器の発熱源またはそこから熱を受ける発熱部１０に面接触させて、そこに半田付けやネジ止め等で固定するか又は面接触だけとし、反対側の一方の接触部５と他方の接触部６とを例えば電子機器のシャーシ等の放熱部１１に弾性屈曲部３，４の弾性を利用して接触させる。このとき一方の接触部５は相手に線または点接触し、他方の接触部６は中央平面板部２の全幅と同じ幅で相手に面接触し、相手に対する接触面積が著しく大きくなり、放熱効率を著しく向上させることができる。   When the earth terminal 1 having such a structure is used in an electronic device, for example, as shown in FIG. 8, the contact plate surface 2a of the central flat plate portion 2 is formed on the heat source of the electronic device or the heat generating portion 10 that receives heat from the heat source. The surface is brought into surface contact and fixed thereto by soldering, screwing or the like, or only surface contact is made, and the one contact portion 5 and the other contact portion 6 on the opposite side are connected to a heat radiating portion 11 such as a chassis of an electronic device, for example. Are brought into contact with each other by utilizing the elasticity of the elastic bent portions 3 and 4. At this time, one contact part 5 is in line or point contact with the other party, and the other contact part 6 is in surface contact with the other party with the same width as the entire width of the central flat plate part 2, and the contact area with the other party is remarkably increased. Can be significantly improved.

尚、上述の実施例では、一方の弾性屈曲部３を１つ、他方の弾性屈曲部４を１つの窓部７の両側の２つとしているが、図には示してないが窓部７を複数形成することによって３つ以上の他方の弾性屈曲部を設け、窓部の数に相当する数の一方の弾性屈曲部を設けても良い。   In the above-described embodiment, one elastic bent portion 3 is provided as one and the other elastic bent portion 4 is provided as two on both sides of one window portion 7, but the window portion 7 is not shown in the drawing. Three or more other elastic bent portions may be provided by forming a plurality of elastic bent portions, and the number of one elastic bent portion corresponding to the number of window portions may be provided.

本発明を実施するための最良の形態における一例のアースターミナルの平面図である。It is a top view of an example earth terminal in the best mode for carrying out the present invention. 同アースターミナルの正面図である。It is a front view of the earth terminal. 同アースターミナルの底面図である。It is a bottom view of the earth terminal. 同アースターミナルの左側面図である。It is a left view of the earth terminal. 同アースターミナルの右側面図である。It is a right view of the same earth terminal. 同アースターミナルの斜視図である。It is a perspective view of the earth terminal. 同アースターミナルの展開図である。It is an expanded view of the earth terminal. 同アースターミナルの使用状態の断面図である。It is sectional drawing of the use condition of the earth terminal.

符号の説明Explanation of symbols

１ アースターミナル
２ 中央平面板部
３，４ 弾性屈曲部
・ 接触部
７ 窓部
１０ 発熱部
１１ 放熱部 DESCRIPTION OF SYMBOLS 1 Ground terminal 2 Center plane board part 3, 4 Elastic bending part, Contact part 7 Window part 10 Heat generating part 11 Heat radiating part

Claims (3)

弾性金属板の中央部が中央平面板部となっており、該中央平面板部の両側が弾性屈曲部として同じ板面側にそれぞれ折り返され、前記各弾性屈曲部の各端部にそれぞれ接触部が設けられているアースターミナルにおいて、
前記両弾性屈曲部の内の一方の弾性屈曲部の全体幅は前記中央平板部より細幅に形成され、
前記両弾性屈曲部の内の他方の弾性屈曲部は、前記弾性金属板に窓部を形成することにより該窓部の両側に残された弾性金属板を前記他方の弾性屈曲部となすとともに、該弾性屈曲部の先端に前記窓部の中央平面板部とは反対側の端部側に残された前記弾性金属板を前記各他方の前記弾性屈曲部と一体の平板状をした接触部となし、
前記他方の弾性屈曲部間の窓部内に前記一方の前記弾性屈曲部を通して該両弾性屈曲部がそれぞれ前記中央平面板部の板面上に折り返されていることを特徴としてなるアースターミナル。 The central portion of the elastic metal plate is a central flat plate portion, and both sides of the central flat plate portion are folded back to the same plate surface side as elastic bent portions, and contact portions are respectively provided at the end portions of the respective elastic bent portions. In the earth terminal where
The overall width of one of the elastic bent portions is narrower than the central flat plate portion,
The other elastic bending portion of the two elastic bending portions forms the elastic metal plate left on both sides of the window portion by forming a window portion on the elastic metal plate, and becomes the other elastic bending portion, a central flat plate portion of the window portion at the tip of the elastic bent portion and the contact portion opposite the elastic metal plate left on the end of that the respective other of the resilient bent portion integral with plate-shaped None,
An earth terminal characterized in that both elastic bent portions are folded on the plate surface of the central flat plate portion through the one elastic bent portion in a window portion between the other elastic bent portions. 前記中央平面板部の一端側の幅方向中央よりこれと一体に、該中央平面板部とは細幅に成形した前記一方の弾性屈曲部を延設され、かつ、前記中央平板部の他端の幅方向中央部分に前記窓部を位置させることにより前記他方の弾性屈曲部を該中央平面板部の幅方向両端に延設されている請求項１に記載のアースターミナル。   The other one end of the central flat plate portion is extended from the center in the width direction on one end side of the central flat plate portion. The ground terminal according to claim 1, wherein the other elastic bent portion is extended to both ends in the width direction of the central plane plate portion by positioning the window portion at a center portion in the width direction of the center flat plate portion. 請求項１又は２に記載のアースターミナルを備える電子機器。   An electronic device comprising the ground terminal according to claim 1.
JP2005366397A 2005-12-20 2005-12-20 Earth terminal and electronic device including the earth terminal Expired - Fee Related JP4171836B2 (en)

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JP2005366397A JP4171836B2 (en) 2005-12-20 2005-12-20 Earth terminal and electronic device including the earth terminal
CNB2006100997665A CN100479263C (en) 2005-12-20 2006-06-30 Grounding end and electronic equipment having the same
HK07112532.3A HK1107192A1 (en) 2005-12-20 2007-11-15 Ground terminal, and electronic equipment equipped with the terminal

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JP2005366397A JP4171836B2 (en) 2005-12-20 2005-12-20 Earth terminal and electronic device including the earth terminal

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JP2007172926A JP2007172926A (en) 2007-07-05
JP4171836B2 true JP4171836B2 (en) 2008-10-29

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