JP7423941B2 - Electronics - Google Patents

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JP7423941B2
JP7423941B2 JP2019162876A JP2019162876A JP7423941B2 JP 7423941 B2 JP7423941 B2 JP 7423941B2 JP 2019162876 A JP2019162876 A JP 2019162876A JP 2019162876 A JP2019162876 A JP 2019162876A JP 7423941 B2 JP7423941 B2 JP 7423941B2
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coil spring
antenna
circuit board
coil
connecting member
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JP2021044609A (en
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貴司 佐野
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Casio Computer Co Ltd
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Casio Computer Co Ltd
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Description

この発明は、電子機器に関する。 The present invention relates to electronic equipment.

主に携帯用途で用いられる小型の電子機器、特にウェアラブル機器において、外部から電波を受信して情報を取得したり外部機器と通信を行ったりするものがある。電波の送受信には、アンテナが必要であるが、このような電子機器では、部品の電磁ノイズの影響を避けつつ受信感度を向上可能にアンテナ及び受信回路を有する基板が各々配置される。 2. Description of the Related Art Among small electronic devices, particularly wearable devices, mainly used for portable purposes, there are devices that receive radio waves from the outside to acquire information or communicate with external devices. An antenna is required for transmitting and receiving radio waves, and in such electronic devices, boards each having an antenna and a receiving circuit are arranged in such a way that receiving sensitivity can be improved while avoiding the influence of electromagnetic noise of components.

小型の電子機器では、アンテナと基板との間を信号配線などで固定的に接続するのが難しい。従来、このような腕時計型の電子機器において、板ばねを用いることで、裏蓋により内部が封止される際に当該板ばねが圧縮されてアンテナと基板との間が安定的に接続される構成が知られている(特許文献1)。 In small electronic devices, it is difficult to make a fixed connection between the antenna and the board using signal wiring or the like. Conventionally, by using a leaf spring in such a wristwatch-type electronic device, the leaf spring is compressed when the inside is sealed by the back cover, and the antenna and the board are stably connected. The configuration is known (Patent Document 1).

特開2004-56560号公報Japanese Patent Application Publication No. 2004-56560

しかしながら、板ばねは、アンテナと基板の離隔方向に対して垂直な方向に場所をとるので、電子機器の狭い内部スペースに比して効率が悪いという課題がある。 However, since the leaf spring takes up space in a direction perpendicular to the direction of separation between the antenna and the board, there is a problem that the leaf spring is inefficient compared to the narrow internal space of the electronic device.

この発明の目的は、より場所を取らずに適切にアンテナと基板とを接続することが可能な電子機器を提供することにある。 An object of the present invention is to provide an electronic device that can appropriately connect an antenna and a board without taking up more space.

上記目的を達成するため、本発明は、
アンテナと、
回路基板と、
前記アンテナと前記回路基板との間を電気的に接続する接続部材と、
を備え、
前記接続部材は、伸縮可能な第1コイルばねを含む第1部分と、前記第1部分の両側に対してそれぞれ直列につながれた柱状の第2コイルばねを含む第2部分と、を有し、
前記第1コイルばねのコイル径は、前記第2コイルばねのコイル径よりも小さく、前記第1コイルばねの中央において最も小さく、
前記第2コイルばねは、前記第1コイルばねよりも弾性係数が小さく、前記アンテナと前記回路基板との間に位置した状態では、螺旋状に周回する導電線が密着して中空の円柱状となっている
ことを特徴とする電子機器である。
In order to achieve the above object, the present invention
antenna and
a circuit board;
a connecting member that electrically connects the antenna and the circuit board;
Equipped with
The connecting member has a first portion including a first expandable and contractible coil spring, and a second portion including a cylindrical second coil spring connected in series to both sides of the first portion. ,
The coil diameter of the first coil spring is smaller than the coil diameter of the second coil spring, and is smallest at the center of the first coil spring,
The second coil spring has a smaller elastic modulus than the first coil spring, and when located between the antenna and the circuit board, the conductive wires circulating in a spiral form are in close contact with each other, forming a hollow cylindrical shape. It has become
This is an electronic device characterized by the following.

本発明に従うと、電子機器においてより場所を取らずに適切にアンテナと基板とを接続することができるという効果がある。 According to the present invention, there is an effect that an antenna and a board can be appropriately connected without taking up much space in an electronic device.

実施形態の電子時計の断面図である。FIG. 1 is a sectional view of an electronic timepiece according to an embodiment. 接続部材の例を示す図である。It is a figure which shows the example of a connection member. 接続部材の変形例1、2を示す図である。It is a figure which shows the modification examples 1 and 2 of a connection member. 接続部材の変形例3、4を示す図である。It is a figure which shows the modification 3 and 4 of a connection member. 接続部材の変形例5、6を示す図である。It is a figure which shows the modification 5 and 6 of a connection member. 接続部材の変形例7を示す図である。It is a figure which shows the modification 7 of a connection member.

以下、本発明の実施の形態を図面に基づいて説明する。
図1は、電子機器の実施形態である電子時計1の断面図である。
Embodiments of the present invention will be described below based on the drawings.
FIG. 1 is a sectional view of an electronic watch 1, which is an embodiment of an electronic device.

この電子時計1は、腕時計型のものであり、ケーシング2と、裏蓋3と、風防ガラス4とにより囲まれた内部空間に、表示部11と、回路基板12と、バッテリ13などが位置している。これらの内部構成の位置関係は、支持部材21(ハウジング)により規定されている。ケーシング2の外側には、ベゼル6が位置している。 This electronic watch 1 is wristwatch-shaped, and a display section 11, a circuit board 12, a battery 13, etc. are located in an internal space surrounded by a casing 2, a back cover 3, and a windshield 4. ing. The positional relationship of these internal structures is defined by the support member 21 (housing). A bezel 6 is located on the outside of the casing 2.

裏蓋3は、防水リング31を介してケーシング2にねじ止めされている。裏蓋3は、ここでは、金属部材(導電性部材)であり、電子時計1の動作に係る電子回路に対して接地面(筐体接地)をなしてよい。風防ガラス4は、透明部材であり、内部の表示部11の表示画面への表示が透過して外部に露出される。風防ガラス4は、パッキン41を介してケーシング2にはめ込まれている。円筒状のケーシング2のうち一箇所には、アンテナ7の挿入部分があり、アンテナ7がケーシング2と風防ガラス4の間に挿入されている。アンテナ7とケーシング2の間は、防水部材51(パッキン)を介して接している。アンテナ7と回路基板12との間は、接続部材8により電気的に接続されている。 The back cover 3 is screwed to the casing 2 via a waterproof ring 31. The back cover 3 is here a metal member (a conductive member), and may form a ground plane (case ground) for an electronic circuit related to the operation of the electronic timepiece 1. The windshield 4 is a transparent member, and the display on the display screen of the display unit 11 inside is transmitted through and exposed to the outside. The windshield 4 is fitted into the casing 2 via a packing 41. There is an insertion portion for an antenna 7 at one location in the cylindrical casing 2, and the antenna 7 is inserted between the casing 2 and the windshield 4. The antenna 7 and the casing 2 are in contact with each other via a waterproof member 51 (packing). The antenna 7 and the circuit board 12 are electrically connected by a connecting member 8.

表示部11は、表示画面を有し、デジタル表示を行う。表示画面としては、特には限られないが、例えば液晶ディスプレイ(LCD)である。表示画面は、上述のように風防ガラス4を介して外部から視認可能に露出されている。 The display unit 11 has a display screen and performs digital display. The display screen is, for example, a liquid crystal display (LCD), although it is not particularly limited. The display screen is exposed through the windshield 4 so as to be visible from the outside as described above.

回路基板12は、電子時計1の動作を制御するマイコン、メモリ及び発振器などの電子部品14が取り付けられて各種動作を行う。 The circuit board 12 is attached with electronic components 14 such as a microcomputer, memory, and oscillator for controlling the operation of the electronic timepiece 1, and performs various operations.

バッテリ13は、回路基板12などに供給する電力を蓄え、出力する。バッテリ13は、例えば、充電池であり、図示略の端子などを介して外部から供給する電力により充電が可能であってよい。また、バッテリ13は、表示部11の表示画面の周囲などに設けられたソーラパネルにより発電された電力を充電可能であってもよい。 The battery 13 stores and outputs power to be supplied to the circuit board 12 and the like. The battery 13 is, for example, a rechargeable battery, and may be rechargeable with power supplied from the outside via a terminal (not shown). Further, the battery 13 may be capable of being charged with electric power generated by a solar panel provided around the display screen of the display unit 11 or the like.

ベゼル6は、表示画面及び風防ガラス4の周囲を環状に覆う部材であり、回転可能であってもよい。ここでは、ベゼル6は、例えば、樹脂などの誘電体材料である。 The bezel 6 is a member that annularly covers the display screen and the windshield 4, and may be rotatable. Here, the bezel 6 is, for example, a dielectric material such as resin.

アンテナ7は、アンテナ線71と、基部72とを有する。アンテナ線71は、基部72から両側に風防ガラス4の上面縁に沿って円弧状に位置している。アンテナ線71の長さは、受信電波の波長などに応じて適宜定められてもよい。アンテナ7は、回路基板12上に位置している電波受信回路、例えば、測位衛星からの電波及び/又はブルートゥース(登録商標)といった短距離無線に係る通信電波など、特に高周波数帯域(GHz帯域など)の電波を受信する。 The antenna 7 has an antenna wire 71 and a base 72. The antenna wire 71 is located in an arc shape along the upper edge of the windshield 4 on both sides from the base 72 . The length of the antenna wire 71 may be determined as appropriate depending on the wavelength of the received radio waves. The antenna 7 is a radio wave receiving circuit located on the circuit board 12, and receives radio waves from a positioning satellite and/or communication radio waves related to short-range wireless communication such as Bluetooth (registered trademark), especially in a high frequency band (such as a GHz band). ) to receive radio waves.

ケーシング2の上部に位置するアンテナ7の基部72と回路基板12とは、接続部材8により接続されている。アンテナ7は、従来周知の導体部材である。なお、基部72は、ケーシング2との接触部分及び防水部材51との接続部分で樹脂などの誘電体材料により包囲されていてもよい。 The base 72 of the antenna 7 located at the upper part of the casing 2 and the circuit board 12 are connected by a connecting member 8. The antenna 7 is a conventionally known conductive member. Note that the base portion 72 may be surrounded by a dielectric material such as resin at the contact portion with the casing 2 and the connection portion with the waterproof member 51.

接続部材8は、回路基板12に対して垂直に延在し、当該回路基板12と基部72とを電気的に接続する導電性部材である。導電性部材の表面には、金又は銀などでめっきがなされていてもよい。接続部材8の位置は、支持部材21に設けられた貫通孔(位置決め穴)又は切り欠き部などにより規定されていてもよい。 The connection member 8 is a conductive member that extends perpendicularly to the circuit board 12 and electrically connects the circuit board 12 and the base 72 . The surface of the conductive member may be plated with gold, silver, or the like. The position of the connection member 8 may be defined by a through hole (positioning hole) or a notch provided in the support member 21.

図2は、接続部材8の例を示す図である。
図2(a)に示すように、接続部材8は、一続きの導電線が螺旋状に延びるコイルばねであり、基礎部81(第2部分)と、伸縮部82(第1部分)とに区分される。基礎部81は、コイル径が一定であり、伸縮部82は、基礎部81との境界部分から先端に向けて(境界部分から離れるほど)コイル径が基礎部81のコイル径から徐々に小さくなっている。すなわち、ここでは、単一の導電線が一定のコイル径部分から連続して徐々にコイル径が小さくなる領域につながっている。
FIG. 2 is a diagram showing an example of the connecting member 8. As shown in FIG.
As shown in FIG. 2(a), the connecting member 8 is a coil spring in which a continuous conductive wire extends spirally, and is connected to a base portion 81 (second portion) and an elastic portion 82 (first portion). It is classified. The coil diameter of the base part 81 is constant, and the coil diameter of the expandable part 82 gradually becomes smaller from the coil diameter of the base part 81 from the boundary part with the base part 81 toward the tip (as the distance from the boundary part increases). ing. That is, here, a single conductive wire is connected from a constant coil diameter portion to a region where the coil diameter gradually decreases.

コイルばねの弾性係数は、コイル径が小さいほど大きくなるので、基礎部81の弾性係数は、伸縮部82の弾性係数よりも小さい。すなわち、接続部材8を圧縮するように力が加えられると、伸縮部82よりも基礎部81が先に収縮することになる。 Since the elastic modulus of the coil spring increases as the coil diameter becomes smaller, the elastic modulus of the base portion 81 is smaller than that of the elastic portion 82. That is, when a force is applied to compress the connecting member 8, the base portion 81 contracts before the expandable portion 82.

電子時計1内に組み込まれた状態(アンテナ7と回路基板12との間に位置した状態)では、図2(b)に示すように、基礎部81では、コイルばね部分(第2コイルばね)の螺旋状に周回する導電線が、当該導電線の延びる方向と垂直(接続部材8の延在方向)に前後の周回と接触するように完全に圧縮されて(密着して)いる。これにより、基礎部81は、中空の円柱状(略円筒状。以下では「円柱」を、中空か否か、及び外周面(外側面)に凹凸があるか否かにかかわらず用いる。一方で、コイルばねの導電線間が密着していない場合の螺旋形状は、円柱に含まれない)となり、導電線方向だけでなく接続部材8の延在方向に電気的にひとつながりとなる。したがって、電流は、周回せずに基礎部81の外面に沿って流れることが可能になるので、導電線に沿って螺旋状に電流が流れるのは伸縮部82だけとなる。 When installed in the electronic watch 1 (located between the antenna 7 and the circuit board 12), the base portion 81 has a coil spring portion (second coil spring), as shown in FIG. 2(b). The conductive wire that goes around in a spiral shape is completely compressed (in close contact) so as to be in contact with the front and back turns perpendicular to the direction in which the conductive wire extends (the direction in which the connecting member 8 extends). As a result, the base portion 81 has a hollow cylindrical shape (approximately cylindrical shape. Hereinafter, the term "column" will be used regardless of whether it is hollow or not, and whether or not the outer circumferential surface (outer surface) has irregularities. On the other hand, , the spiral shape when the conductive wires of the coil spring are not in close contact with each other is not included in a cylinder), and they are electrically connected not only in the direction of the conductive wires but also in the extending direction of the connecting member 8. Therefore, the current can flow along the outer surface of the base portion 81 without going around, so that the current flows spirally along the conductive wire only in the expandable portion 82.

伸縮部82のコイルばね部分(第1コイルばね)は、コイル径が小さいので、基礎部81よりも弾性係数が大きく、電子時計1内に組み込まれて基礎部81が円柱状となった状態でも、螺旋状の導電線が完全に収縮しておらず(一部が接続部材8の延在方向に隣り合った周回の同士で接していてもよい)、伸縮可能であるので、接続部材8の延在方向に沿った長さがアンテナ7の基部72と回路基板12との間の距離に応じて微調整可能となる。また、コイル径が小さい分、インダクタンスも小さくなるので、アンテナ7による受信電波に対するインダクタンスの影響を抑制することができる。 The coil spring portion (first coil spring) of the extensible portion 82 has a smaller coil diameter, so it has a larger elastic modulus than the base portion 81, and even when it is incorporated into the electronic watch 1 and the base portion 81 has a cylindrical shape. , since the spiral conductive wire is not completely contracted (parts may be in contact with each other in adjacent turns in the extending direction of the connecting member 8) and can be expanded and contracted, the connecting member 8 The length along the extending direction can be finely adjusted depending on the distance between the base 72 of the antenna 7 and the circuit board 12. Furthermore, since the inductance is also reduced as the coil diameter is smaller, the influence of inductance on radio waves received by the antenna 7 can be suppressed.

ここでは、伸縮部82(一端)の細くなった先端が基部72の側に位置してアンテナ7に接触し、円柱状の基礎部81の先端が回路基板12の側に位置する。導電性部材、特に、金属部材である基部72は、配線の薄膜及び回路基板12の樹脂基板などよりも強度が高いので、この向きで配置することでパターン配線及び回路基板12が削られるのを抑制することができる。また、基部72の表面が伸縮部82の先端と接してこすれることで、接触面に不動態膜が生じにくくなり、導電性が低下するのを抑制することができる。 Here, the tapered tip of the extensible portion 82 (one end) is located on the base 72 side and contacts the antenna 7, and the tip of the cylindrical base portion 81 is located on the circuit board 12 side. Since the conductive member, especially the base 72 which is a metal member, has higher strength than the thin film of the wiring and the resin substrate of the circuit board 12, arranging it in this direction prevents the pattern wiring and the circuit board 12 from being scraped. Can be suppressed. Further, when the surface of the base portion 72 contacts and rubs against the tip of the extensible portion 82, a passive film is less likely to be formed on the contact surface, and a decrease in conductivity can be suppressed.

図3は、接続部材8の変形例1、2を示す図である。
図3(a)に示す変形例1の接続部材8aの外側は、各周回の導電線が初めから上下に接触している密着コイルばね(引っ張りばね)の凹凸(凹部)を埋め込むように基礎部81aの表面が導体部材(導電層)で覆われて、円柱形となっている。導体部材は、特に限られないが、例えば、各種半田などが用いられてもよい。高周波数帯域の信号は、導体表面に沿って流れるので、表面全体を平面(周回方向に曲面)状とすることで、折れ曲がり地点などでの損失を抑制することができる。また、初めから導電線間が接触した状態で固定されるので、基礎部81aに電流のボトルネックが生じにくく、安定して低損失で電流が流れる。なお、基礎部81aは、密着コイルばねではなく、その他の円柱状の部材であってもよい。
FIG. 3 is a diagram showing Modifications 1 and 2 of the connecting member 8.
The outer side of the connecting member 8a of Modification 1 shown in FIG. The surface of 81a is covered with a conductive member (conductive layer) and has a cylindrical shape. The conductor member is not particularly limited, but various solders may be used, for example. Since signals in a high frequency band flow along the conductor surface, by making the entire surface flat (curved in the circumferential direction), loss at bends and the like can be suppressed. Furthermore, since the conductive wires are fixed in contact from the beginning, a current bottleneck is less likely to occur in the base portion 81a, and current flows stably with low loss. Note that the base portion 81a may be any other cylindrical member instead of the close coil spring.

図3(b)に示す変形例2の接続部材8bでは、基礎部81bは、コイルばね811の内部に接続部材8bの延在方向に沿って円柱形(ここでは、中空)の導電性部材812(円柱部材)が挿入されたものである。これにより、電流は、導電性部材812の面に沿って低損失低インダクタンスで安定して流れることが可能になる。ここでは導電性部材812の上端がコイルばね811の上端より上にはみ出しているが、コイルばね811が完全に圧縮された状態で当該コイルばね811の内部に収まっていてもよい。また、コイルばね811と導電性部材812とは、上端又は下端が接合されていてもよい。 In the connecting member 8b of Modification Example 2 shown in FIG. (Cylindrical member) is inserted. This allows current to stably flow along the surface of the conductive member 812 with low loss and low inductance. Here, the upper end of the conductive member 812 protrudes above the upper end of the coil spring 811, but the coil spring 811 may be housed inside the coil spring 811 in a completely compressed state. Further, the coil spring 811 and the conductive member 812 may be joined at their upper ends or lower ends.

図4は、接続部材8の変形例3、4を示す図である。
図4(a)に示す変形例3の接続部材8cは、基礎部81cのコイルばね811と伸縮部82cのコイルばねとが異なる。ここでは、基礎部81cには、伸縮部82cとの接続側端部に接続用の環状又は円状の中間部材813が接合されている。
FIG. 4 is a diagram showing modified examples 3 and 4 of the connecting member 8.
In the connecting member 8c of Modification 3 shown in FIG. 4(a), the coil spring 811 of the base portion 81c and the coil spring of the extensible portion 82c are different. Here, an annular or circular intermediate member 813 for connection is joined to the base portion 81c at the end thereof on the connection side with the expandable portion 82c.

ここでは、伸縮部82cのコイルばねは、コイルばね811よりも導電線の太さ(径)が大きい。弾性係数は、導電線が太いほど大きくなるので、上記実施形態の伸縮部82よりも更に弾性係数が更に大きくなる。また、導電線の線抵抗が小さくなるので、アンテナ7の特性インピーダンスなどに応じて適宜設定されてもよい。 Here, the coil spring of the extensible portion 82c has a larger conductive wire thickness (diameter) than the coil spring 811. Since the elastic modulus increases as the conductive wire becomes thicker, the elastic modulus becomes even larger than that of the elastic part 82 of the above embodiment. Furthermore, since the line resistance of the conductive wire is reduced, it may be set as appropriate depending on the characteristic impedance of the antenna 7, etc.

図4(b)に示す変形例4の接続部材8dは、上記変形例3の接続部材8cにおける伸縮部82cと同様に伸縮部82dの導電線が基礎部81cの導電線よりも太く、一方でコイル径が等しい。上述のように、導電線の太さ(径)で弾性係数の差が生じているので、コイル径を変更して弾性係数を変化させなくてもよい。 In the connection member 8d of Modification 4 shown in FIG. 4(b), the conductive wire of the stretchable portion 82d is thicker than the conductive wire of the base portion 81c, similar to the stretchable portion 82c of the connection member 8c of Modification 3 above. The coil diameters are the same. As described above, since the elastic coefficient differs depending on the thickness (diameter) of the conductive wire, it is not necessary to change the elastic coefficient by changing the coil diameter.

図5は、接続部材の変形例5、6を示す図である。
図5(a)に示す変形例5の接続部材8eは、上下端が基礎部814、815であり、中央に伸縮部82eを有する。基礎部814、815は、上記と同様円柱状の形状を有する。伸縮部82eは、コイル径が基礎部814、815よりも小さく、中央で最も小さくなっている。
FIG. 5 is a diagram showing modification examples 5 and 6 of the connecting member.
The connecting member 8e of Modification 5 shown in FIG. 5(a) has base parts 814 and 815 at the upper and lower ends, and has an expandable part 82e in the center. The base portions 814 and 815 have a cylindrical shape similar to the above. The coil diameter of the telescopic portion 82e is smaller than that of the base portions 814 and 815, and is smallest at the center.

このような形状では、両端で上記などよりも広い範囲でアンテナ7の基部72及び回路基板12に接するので、安定した信号伝送が可能である。また、中央で伸縮するので、当該中央部分で接続部材8を曲折させることができる。これにより、基部72の接続位置と回路基板12の接続位置とが完全に対向していない場合や、間に支柱、又はりゅうず若しくは押しボタンスイッチなどの軸といった障害物が入っている場合にも、迂回して信号伝送を行うことが可能となる。 With this shape, both ends are in contact with the base 72 of the antenna 7 and the circuit board 12 over a wider range than the above, so stable signal transmission is possible. Moreover, since it expands and contracts at the center, the connecting member 8 can be bent at the center. As a result, even if the connection position of the base 72 and the connection position of the circuit board 12 are not completely opposed to each other, or if there is an obstacle between them such as a support or the shaft of a crown or pushbutton switch, etc. , it becomes possible to perform signal transmission in a detour.

図5(b)に示す変形例6の接続部材8fでは、伸縮部82fの両側に円柱状の基礎部814f、815fがそれぞれ位置している。基礎部814f、815fが伸縮しない場合には、伸縮部82fの弾性係数を変化させる必要がないので、伸縮部82fは、基礎部814f、815fと同一のコイル径のコイルばねであってもよい。 In the connecting member 8f of the sixth modification shown in FIG. 5(b), columnar base portions 814f and 815f are located on both sides of the expandable portion 82f, respectively. If the base portions 814f, 815f do not expand or contract, there is no need to change the elastic modulus of the expandable portion 82f, so the expandable portion 82f may be a coil spring with the same coil diameter as the base portions 814f, 815f.

図6は、接続部材8の変形例7を示す図である。
この変形例7の接続部材8gは、基礎部81及び伸縮部82のそれぞれ先端から導電線83、84(線状部分)が横向き(接続部材8gの延在方向に垂直な方向)に延びている。上述の変形例5、6と同様に、基部72の接続位置と回路基板12の接続位置とが完全に対応していない場合、及び他の回路、部品などの影響で、基部72及び回路基板12の間を直線で接続部材8によりつなぐのが困難な場合に、両先端の導電線83、84がそれぞれ基部72及び回路基板12に対して電気的に接続されてよい。この場合、接続部材8の両端は、基部72及び回路基板12の絶縁部分に対して接触維持可能な位置に設けられることで、配置の自由度が向上する。
FIG. 6 is a diagram showing a seventh modification of the connecting member 8.
In the connecting member 8g of Modification 7, conductive wires 83 and 84 (linear portions) extend laterally (in a direction perpendicular to the extending direction of the connecting member 8g) from the tips of the base portion 81 and the expandable portion 82, respectively. . Similar to Modifications 5 and 6 above, when the connection position of the base 72 and the connection position of the circuit board 12 do not completely correspond, or due to the influence of other circuits, components, etc., the base 72 and the circuit board 12 If it is difficult to connect them in a straight line with the connecting member 8, the conductive wires 83 and 84 at both ends may be electrically connected to the base 72 and the circuit board 12, respectively. In this case, both ends of the connecting member 8 are provided at positions where they can maintain contact with the base 72 and the insulating portion of the circuit board 12, thereby increasing the degree of freedom in arrangement.

以上のように、本実施形態の電子時計1は、アンテナ7と、回路基板12と、アンテナ7と回路基板12との間を電気的に接続する接続部材8と、を備える。接続部材8は、電子時計1内でアンテナ7と回路基板12との間に位置した状態で伸縮可能なコイルばねを含む伸縮部82と、伸縮部82に対して直列につながれた柱状の基礎部81と、を有する。
このように、電子機器(特に小型のもの)内で直接半田などでアンテナ線を固定するのが難しいアンテナ7及び回路基板12の間の電気的な接続において、部分的に伸縮可能なコイルばねとして、他の部分では電流が螺旋状に流れない柱状構造を有する接続部材を用いることで、インダクタンスを低減しつつ横幅を取らずにアンテナ7の送受信信号を回路基板12との間でやり取りすることができる。
As described above, the electronic timepiece 1 of this embodiment includes the antenna 7, the circuit board 12, and the connection member 8 that electrically connects the antenna 7 and the circuit board 12. The connecting member 8 includes an extensible portion 82 including a coil spring that can be expanded and contracted while positioned between the antenna 7 and the circuit board 12 in the electronic watch 1, and a columnar base portion connected in series to the extensible portion 82. 81.
In this way, in the electrical connection between the antenna 7 and the circuit board 12, where it is difficult to directly fix the antenna wire with solder etc. in an electronic device (especially a small one), it can be used as a partially expandable coil spring. By using a connecting member having a columnar structure in which current does not flow spirally in other parts, it is possible to transmit and receive signals from the antenna 7 to and from the circuit board 12 while reducing inductance and without taking up the width. can.

また、基礎部81は、円柱形状部分を含む。伸縮部82のコイルばねに合わせて円柱形状の基礎部81をつなげることで、基礎部81と伸縮部82の接続における損失を低減することができる。 Furthermore, the base portion 81 includes a cylindrical portion. By connecting the cylindrical base portion 81 in accordance with the coil spring of the expandable portion 82, loss in connection between the base portion 81 and the expandable portion 82 can be reduced.

また、伸縮部82は、接続部材8の一端に位置し、基礎部81との接続位置から離れるほどコイル径が小さくなる。これにより、伸縮部82の弾性係数が大きくなるので、適度な弾性を有するようになり、電子時計1の組み立て時に適度な反発力が生じて、接続部材8を組み込みやすくなる。 Further, the extensible portion 82 is located at one end of the connection member 8, and the coil diameter becomes smaller as the distance from the connection position with the base portion 81 increases. As a result, the elastic modulus of the extensible portion 82 is increased, so that it has appropriate elasticity, and an appropriate repulsive force is generated when assembling the electronic timepiece 1, making it easier to assemble the connecting member 8.

また、伸縮部82の先端は、アンテナ7に接触している。先端が細く、狭い範囲に力がかかる側を金属などの導体部材であるアンテナ7の側とすることで、接続部材8の圧力により回路基板12が削れない。また、金属表面を伸縮部82がこすることで、不動態膜が生じにくく、接続部分での抵抗損失を抑えることができる。 Further, the tip of the extensible portion 82 is in contact with the antenna 7. Since the tip is thin and the side on which force is applied in a narrow area is the side of the antenna 7 which is a conductive member such as metal, the circuit board 12 is not scraped by the pressure of the connecting member 8. Furthermore, since the stretchable portion 82 rubs against the metal surface, a passive film is less likely to form, and resistance loss at the connection portion can be suppressed.

また、変形例5、6では、接続部材8は、伸縮部82の両側に基礎部81がそれぞれ位置している。アンテナ7及び回路基板12との接続部分で接続部材8の幅(コイル径)が広いので、安定して接続される。また、中央が伸縮部82となることで、当該伸縮部82が多少曲折してもよく、アンテナ7の接続位置と回路基板12の接続位置との間に支柱又はりゅうずなどの軸部材が入ってもこれを迂回しながらアンテナ7による送受信信号をやり取りすることができる。 Further, in Modifications 5 and 6, in the connecting member 8, the base portions 81 are located on both sides of the expandable portion 82, respectively. Since the width (coil diameter) of the connecting member 8 is wide at the connection portion between the antenna 7 and the circuit board 12, the connection is stable. Furthermore, since the center is the telescopic part 82, the telescopic part 82 may be bent to some extent, and a shaft member such as a support or a crown may be inserted between the connection position of the antenna 7 and the connection position of the circuit board 12. However, it is possible to exchange signals transmitted and received by the antenna 7 while bypassing this.

また、基礎部81もコイルばねを有し、このコイルばねの部分は、伸縮部82のコイルばねの部分よりも弾性係数が小さく、アンテナ7と回路基板12との間に位置した状態では、螺旋状に周回する導電線が密着して中空の円柱状となっている。
すなわち、基礎部81も使用状態で円柱状になってさえいれば、コイルばねであってよい。このために基礎部81の弾性係数を伸縮部82の弾性係数より小さくしておくことで、電子時計1の組み立て時に伸縮部82よりも先に収縮して、密着状態とすることができる。
Further, the base part 81 also has a coil spring, and this coil spring part has a smaller elastic modulus than the coil spring part of the extensible part 82, and when located between the antenna 7 and the circuit board 12, the coil spring part has a spiral spring part. The conductive wires that circulate in the shape of a hollow cylinder are tightly attached to each other to form a hollow cylinder.
That is, the base portion 81 may also be a coil spring as long as it is cylindrical in use. For this reason, by making the elastic modulus of the base part 81 smaller than that of the elastic part 82, it is possible to contract before the elastic part 82 when assembling the electronic timepiece 1, so that the base part 81 can be in a close contact state.

また、伸縮部82の基礎部81との接続位置におけるコイル径が基礎部81のコイル径と等しいので、適切かつ安定して基礎部81と伸縮部82とを接続することができる。 Further, since the coil diameter of the telescopic portion 82 at the connection position with the base portion 81 is equal to the coil diameter of the base portion 81, the base portion 81 and the telescopic portion 82 can be appropriately and stably connected.

また、基礎部81及び伸縮部82は、単一の導電線により連続した単一のコイルばねである。わざわざ複数の部材を接合せずに単一のコイルばねの形状及びサイズを調整することで、使用時に所望の構造となる接続部材8を容易に得ることができる。 Further, the base portion 81 and the expandable portion 82 are a single coil spring connected by a single conductive wire. By adjusting the shape and size of a single coil spring without joining a plurality of members, it is possible to easily obtain the connecting member 8 that has a desired structure during use.

また、変形例1、6などで説明したように、基礎部81は、円柱部材であってもよい。基礎部81のコイルばねが圧縮されて密着したときの長さは定まっているので、同一長さの円柱部材を初めから用意してもよい。ばね構造にする手間がかからず、また、ばねよりも安定して低損失で電流を流すことができる。 Furthermore, as described in Modifications 1 and 6, the base portion 81 may be a cylindrical member. Since the length when the coil spring of the base part 81 is compressed and brought into close contact is fixed, cylindrical members of the same length may be prepared from the beginning. It does not require any effort to create a spring structure, and it can flow current more stably and with lower loss than a spring.

あるいは、変形例2のように、基礎部81のコイルばね811の内部にコイルばね811の延在方向に沿って導電性部材812を挿入してもよい。これにより、組み立て時におけるコイルばねとしての伸縮を利用可能としつつ、導電性部材812の部分では、より安定して電流損失を抑えることができる。 Alternatively, as in Modification 2, the conductive member 812 may be inserted inside the coil spring 811 of the base portion 81 along the extending direction of the coil spring 811. This makes it possible to utilize expansion and contraction as a coil spring during assembly, while more stably suppressing current loss in the conductive member 812 portion.

また、変形例1で説明したように、基礎部81は、密着コイルばねと、当該密着コイルばねの外周面に沿った凹部を埋め込む導電層と、を有していてもよい。すなわち、コイルばねとして形成してから、基礎部81となる密着コイルばねの部分の表面を導電性部材で平らにすることで、全体構造としては単一のねじでまとめて容易に形成し、その表面に必要に応じて処理を行って、信号のやりとりをより適切に行うことを可能とすることができる。 Further, as described in Modification 1, the base portion 81 may include a close coil spring and a conductive layer that embeds a recess along the outer peripheral surface of the close coil spring. That is, by forming a coil spring and then flattening the surface of the close-contact coil spring that will become the base part 81 with a conductive member, the entire structure can be easily formed with a single screw. The surface can be treated as necessary to enable better signal exchange.

また、接続部材8は、少なくとも一方の先端から延びる線状の導電線83、84を有する。これにより、アンテナ7の接続位置と回路基板12の接続位置とに多少のずれがあっても適切にそれぞれつなぐことように調整することが可能となる。 Further, the connecting member 8 has linear conductive wires 83 and 84 extending from at least one tip. Thereby, even if there is some deviation between the connection position of the antenna 7 and the connection position of the circuit board 12, it is possible to adjust the connection positions so that they are connected appropriately.

なお、本発明は、上記実施の形態に限られるものではなく、様々な変更が可能である。
例えば、上記実施の形態では、伸縮部82でコイル径がテーパー状に小さくなるものとして示したが、基礎部81のコイル径よりも小さければ、変形例5の伸縮部82eのような形状であってもよく、あるいは、先端付近でコイル径が一定になるなど、他の形状であってもよい。
Note that the present invention is not limited to the embodiments described above, and various changes are possible.
For example, in the above embodiment, the coil diameter is tapered to become smaller in the expandable portion 82, but if it is smaller than the coil diameter of the base portion 81, it may have a shape like the expandable portion 82e of Modification 5. Alternatively, the coil diameter may be constant near the tip, or other shapes may be used.

また、上記変形例1では、伸縮部82のコイル径が先端ほど小さくなるようにしたが、基礎部81が伸縮しない場合には、変形例4、6と同様に伸縮部82のコイル径が一定であってよい。 In addition, in the above modification 1, the coil diameter of the telescopic portion 82 is made smaller toward the tip, but if the base portion 81 does not expand or contract, the coil diameter of the telescopic portion 82 remains constant as in modifications 4 and 6. It may be.

また、上記変形例2では、コイルばね811の内側に導電性部材812を挿入したが、コイルばね811が中空の導電性部材812の内側に収められてもよいし、導電シートなどがコイルばね811の周囲に巻き付けられてもよい。 Further, in the second modification, the conductive member 812 is inserted inside the coil spring 811, but the coil spring 811 may be housed inside the hollow conductive member 812, or a conductive sheet or the like may be inserted into the coil spring 811. may be wrapped around.

また、上記変形例3、4では、中間部材813を挟んで基礎部81のコイルばねと、異なる太さの伸縮部82のコイルばねとをつなげたが、直接つなげられていてもよい。 Further, in the third and fourth modifications described above, the coil spring of the base portion 81 and the coil spring of the extensible portion 82 having different thicknesses are connected with the intermediate member 813 interposed therebetween, but they may be directly connected.

また、上記実施の形態では、細くなった先端がアンテナ7の側に位置するように配置される場合を示したが、反対向きでもよい。 Further, in the embodiment described above, a case is shown in which the tapered tip is placed on the side of the antenna 7, but it may be placed in the opposite direction.

また、変形例5、6のように伸縮部82の両側に基礎部81が位置する場合、一方のみがコイルばねで他方が通常(剛体)の円柱部材であってもよい。 Further, when the base portions 81 are located on both sides of the extensible portion 82 as in Modifications 5 and 6, only one may be a coil spring and the other may be a normal (rigid) cylindrical member.

また、基礎部81は、柱状であれば、円柱部材である必要はない。基礎部81は、角柱であってもよく、あるいは、円錐形や円錐台形であってもよい。すなわちここでは、柱状とは、接続部材の延在方向に垂直な断面の外形面積が一定のものに限られない。また、複数の柱状部材が伸縮部82の上側に所定角度間隔で取り付けられていてもよく、これら複数の柱状部材が支持部材により相互に固定されて枠状構造となっていてもよい。支持部材は環状であってもよいし四角い枠であってもよい。この場合の支持部材は導体に限られない。 Furthermore, the base portion 81 does not need to be a cylindrical member as long as it is columnar. The base portion 81 may be a prism, or may be a cone or a truncated cone. That is, here, the columnar shape is not limited to one having a constant external area in a cross section perpendicular to the extending direction of the connecting member. Further, a plurality of columnar members may be attached to the upper side of the expandable portion 82 at predetermined angular intervals, and these plurality of columnar members may be fixed to each other by a support member to form a frame-like structure. The support member may be annular or a square frame. The supporting member in this case is not limited to a conductor.

また、上記変形例7では、上下端の両方に導電線83、84が延びているものとして説明したが、いずれか一方だけであってもよい。
その他、上記実施の形態で示した構成及び構造の具体的な細部は、本発明の趣旨を逸脱しない範囲において適宜変更可能である。
Further, in the seventh modification, the conductive wires 83 and 84 are described as extending to both the upper and lower ends, but only one of them may be provided.
In addition, the specific details of the configuration and structure shown in the above embodiments can be changed as appropriate without departing from the spirit of the present invention.

本発明のいくつかの実施形態を説明したが、本発明の範囲は、上述の実施の形態に限定するものではなく、特許請求の範囲に記載された発明の範囲とその均等の範囲を含む。
以下に、この出願の願書に最初に添付した特許請求の範囲に記載した発明を付記する。付記に記載した請求項の項番は、この出願の願書に最初に添付した特許請求の範囲の通りである。
Although several embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and equivalent ranges thereof.
Below, the invention described in the claims first attached to the application of this application will be added. The claim numbers listed in the supplementary notes are as in the claims originally attached to the request for this application.

[付記]
<請求項1>
アンテナと、
回路基板と、
前記アンテナと前記回路基板との間を電気的に接続する接続部材と、
を備え、
前記接続部材は、伸縮可能な第1コイルばねを含む第1部分と、前記第1部分に対して直列につながれた柱状の第2部分と、を有する
ことを特徴とする電子機器。
<請求項2>
前記第2部分は、円柱形状部分を含むことを特徴とする請求項1記載の電子機器。
<請求項3>
前記第1部分は、前記接続部材の一端に位置し、前記第1コイルばねは、前記第2部分との接続位置から離れるほどコイル径が小さいことを特徴とする請求項1又は2記載の電子機器。
<請求項4>
前記第1コイルばねの先端は、前記アンテナに接触していることを特徴とする請求項3記載の電子機器。
<請求項5>
前記接続部材は、前記第1部分の両側に前記第2部分がそれぞれ位置していることを特徴とする請求項1又は2記載の電子機器。
<請求項6>
前記第2部分は第2コイルばねを有し、
当該第2コイルばねは、前記第1コイルばねよりも弾性係数が小さく、前記アンテナと前記回路基板との間に位置した状態では、螺旋状に周回する導電線が密着して中空の円柱状となっている
ことを特徴とする請求項1~5のいずれか一項に記載の電子機器。
<請求項7>
前記第1部分は、前記第1コイルばねの前記第2部分との接続位置におけるコイル径が前記第2部分の前記第2コイルばねのコイル径と等しいことを特徴とする請求項6記載の電子機器。
<請求項8>
前記第2コイルばね及び前記第1コイルばねは、単一の導電線により連続していることを特徴とする請求項6又は7記載の電子機器。
<請求項9>
前記第2部分は、円柱部材を有することを特徴とする請求項1~4のいずれか一項に記載の電子機器。
<請求項10>
前記第2部分は、円柱部材を有し、
当該円柱部材は、前記第2コイルばねの内部に当該第2コイルばねの延在方向に沿って位置している
ことを特徴とする請求項6~8のいずれか一項に記載の電子機器。
<請求項11>
前記第2部分は、密着コイルばねと、当該密着コイルばねの外周面に沿った凹部を埋め込む導電層と、を有することを特徴とする請求項1~5のいずれか一項に記載の電子機器。
<請求項12>
前記接続部材は、少なくとも一方の先端から延びる線状部分を有することを特徴とする請求項1~11のいずれか一項に記載の電子機器。
[Additional notes]
<Claim 1>
antenna and
a circuit board;
a connecting member that electrically connects the antenna and the circuit board;
Equipped with
The electronic device is characterized in that the connection member has a first portion including a first extensible coil spring, and a columnar second portion connected in series to the first portion.
<Claim 2>
The electronic device according to claim 1, wherein the second portion includes a cylindrical portion.
<Claim 3>
The electronic device according to claim 1 or 2, wherein the first portion is located at one end of the connection member, and the first coil spring has a coil diameter that decreases as the distance from the connection position with the second portion increases. device.
<Claim 4>
4. The electronic device according to claim 3, wherein a tip of the first coil spring is in contact with the antenna.
<Claim 5>
3. The electronic device according to claim 1, wherein the second portion of the connecting member is located on both sides of the first portion.
<Claim 6>
the second portion has a second coil spring;
The second coil spring has a smaller elastic modulus than the first coil spring, and when it is located between the antenna and the circuit board, the conductive wires circulating in a spiral form are in close contact with each other, forming a hollow cylindrical shape. The electronic device according to any one of claims 1 to 5, characterized in that:
<Claim 7>
7. The electronic device according to claim 6, wherein the first portion has a coil diameter equal to a coil diameter of the second coil spring of the second portion at a position where the first coil spring is connected to the second portion. device.
<Claim 8>
8. The electronic device according to claim 6, wherein the second coil spring and the first coil spring are connected by a single conductive wire.
<Claim 9>
The electronic device according to any one of claims 1 to 4, wherein the second portion has a cylindrical member.
<Claim 10>
the second portion has a cylindrical member;
The electronic device according to claim 6, wherein the cylindrical member is located inside the second coil spring along the extending direction of the second coil spring.
<Claim 11>
The electronic device according to any one of claims 1 to 5, wherein the second portion includes a close coil spring and a conductive layer that fills a recess along the outer peripheral surface of the close coil spring. .
<Claim 12>
The electronic device according to any one of claims 1 to 11, wherein the connecting member has a linear portion extending from at least one tip.

1 電子時計
2 ケーシング
3 裏蓋
4 風防ガラス
6 ベゼル
7 アンテナ
8、8a~8g 接続部材
11 表示部
12 回路基板
13 バッテリ
14 電子部品
15 回路基板
21 支持部材
31 防水リング
41 パッキン
51 防水部材
71 アンテナ線
72 基部
81、81a~81c 基礎部
812 導電性部材
813 中間部材
814、814f、815、815f 基礎部
82、82a、82c~82f 伸縮部
83、84 導電線
1 Electronic watch 2 Casing 3 Back cover 4 Windshield 6 Bezel 7 Antenna 8, 8a to 8g Connection member 11 Display section 12 Circuit board 13 Battery 14 Electronic component 15 Circuit board 21 Support member 31 Waterproof ring 41 Packing 51 Waterproof member 71 Antenna wire 72 Base portion 81, 81a to 81c Foundation portion 812 Conductive member 813 Intermediate member 814, 814f, 815, 815f Base portion 82, 82a, 82c to 82f Expandable portion 83, 84 Conductive wire

Claims (7)

アンテナと、
回路基板と、
前記アンテナと前記回路基板との間を電気的に接続する接続部材と、
を備え、
前記接続部材は、伸縮可能な第1コイルばねを含む第1部分と、前記第1部分の両側に対してそれぞれ直列につながれた柱状の第2コイルばねを含む第2部分と、を有し、
前記第1コイルばねのコイル径は、前記第2コイルばねのコイル径よりも小さく、前記第1コイルばねの中央において最も小さく、
前記第2コイルばねは、前記第1コイルばねよりも弾性係数が小さく、前記アンテナと前記回路基板との間に位置した状態では、螺旋状に周回する導電線が密着して中空の円柱状となっている
ことを特徴とする電子機器。
antenna and
a circuit board;
a connecting member that electrically connects the antenna and the circuit board;
Equipped with
The connecting member has a first portion including a first expandable and contractible coil spring, and a second portion including a cylindrical second coil spring connected in series to both sides of the first portion. ,
The coil diameter of the first coil spring is smaller than the coil diameter of the second coil spring, and is smallest at the center of the first coil spring,
The second coil spring has a smaller elastic modulus than the first coil spring, and when located between the antenna and the circuit board, the conductive wires circulating in a spiral form are in close contact with each other, forming a hollow cylindrical shape. It has become
An electronic device characterized by:
前記第1部分は、前記第1コイルばねの前記第2部分との接続位置におけるコイル径が前記第2部分の前記第2コイルばねのコイル径と等しい
ことを特徴とする請求項1に記載の電子機器。
The first portion has a coil diameter equal to a coil diameter of the second coil spring of the second portion at a position where the first coil spring is connected to the second portion. Electronics.
前記第2コイルばね及び前記第1コイルばねは、単一の導電線により連続している
ことを特徴とする請求項1又は2に記載の電子機器。
The electronic device according to claim 1 or 2 , wherein the second coil spring and the first coil spring are connected by a single conductive wire.
アンテナと、
回路基板と、
前記アンテナと前記回路基板との間を電気的に接続する接続部材と、
を備え、
前記接続部材は、伸縮可能な第1コイルばねを含む第1部分と、前記第1部分の両側に対してそれぞれ直列につながれた柱状の第2コイルばねを含む第2部分と、を有し、
前記第1コイルばねのコイル径は、前記第2コイルばねのコイル径よりも小さく、前記第1コイルばねの中央において最も小さく、
前記第2部分は、円柱部材を有し、
当該円柱部材は、前記第2コイルばねの内部に当該第2コイルばねの延在方向に沿って位置している
ことを特徴とする電子機器。
antenna and
a circuit board;
a connecting member that electrically connects the antenna and the circuit board;
Equipped with
The connecting member has a first portion including a first extensible coil spring, and a second portion including a columnar second coil spring connected in series to both sides of the first portion,
The coil diameter of the first coil spring is smaller than the coil diameter of the second coil spring, and is smallest at the center of the first coil spring,
the second portion has a cylindrical member;
An electronic device characterized in that the columnar member is located inside the second coil spring along the extending direction of the second coil spring.
アンテナと、
回路基板と、
前記アンテナと前記回路基板との間を電気的に接続する接続部材と、
を備え、
前記接続部材は、伸縮可能な第1コイルばねを含む第1部分と、前記第1部分の両側に対してそれぞれ直列につながれた柱状の第2コイルばねを含む第2部分と、を有し、
前記第1コイルばねのコイル径は、前記第2コイルばねのコイル径よりも小さく、前記第1コイルばねの中央において最も小さく、
前記接続部材は、少なくとも一方の先端から延びる線状部分を有する
ことを特徴とする電子機器。
antenna and
a circuit board;
a connecting member that electrically connects the antenna and the circuit board;
Equipped with
The connecting member has a first portion including a first extensible coil spring, and a second portion including a columnar second coil spring connected in series to both sides of the first portion,
The coil diameter of the first coil spring is smaller than the coil diameter of the second coil spring, and is smallest at the center of the first coil spring,
An electronic device characterized in that the connection member has a linear portion extending from at least one tip.
アンテナと、
回路基板と、
前記アンテナと前記回路基板との間を電気的に接続する接続部材と、
を備え、
前記接続部材は、伸縮可能な第1コイルばねを含む第1部分と、前記第1部分の両側に対してそれぞれ直列につながれた柱状の第2コイルばねを含む第2部分と、を有し、
前記第1コイルばねのコイル径は、前記第2コイルばねのコイル径よりも小さく、前記第1コイルばねの中央において最も小さく、
前記第1コイルばねの導電線の径は、前記第2コイルばねの導電線の径よりも大きい
ことを特徴とする電子機器。
antenna and
a circuit board;
a connecting member that electrically connects the antenna and the circuit board;
Equipped with
The connecting member has a first portion including a first extensible coil spring, and a second portion including a columnar second coil spring connected in series to both sides of the first portion,
The coil diameter of the first coil spring is smaller than the coil diameter of the second coil spring, and is smallest at the center of the first coil spring,
An electronic device characterized in that the diameter of the conductive wire of the first coil spring is larger than the diameter of the conductive wire of the second coil spring.
アンテナと、
回路基板と、
前記アンテナと前記回路基板との間を電気的に接続する接続部材と、
を備え、
前記接続部材は、伸縮可能な第1コイルばねを含む第1部分と、前記第1部分に対して直列につながれた柱状の第2コイルばねを含む第2部分と、を有し、
前記第1コイルばねの導電線の径は、前記第2コイルばねの導電線の径よりも大きい
ことを特徴とする電子機器。
antenna and
a circuit board;
a connecting member that electrically connects the antenna and the circuit board;
Equipped with
The connecting member has a first portion including a first extensible coil spring, and a second portion including a columnar second coil spring connected in series to the first portion,
An electronic device characterized in that the diameter of the conductive wire of the first coil spring is larger than the diameter of the conductive wire of the second coil spring.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000214272A (en) 1999-01-26 2000-08-04 Miyota Kk Alarm clock structure and its assembly method
JP2004347498A (en) 2003-05-23 2004-12-09 Seiko Instruments Inc Contact structure body of timepiece and clock equipped with its structure body
JP2007073441A (en) 2005-09-08 2007-03-22 Matsushita Electric Works Ltd Conductive contactor and conductive contactor assembly
JP2014062866A (en) 2012-09-24 2014-04-10 Seiko Epson Corp Built-in antenna electronic clock

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1187004A (en) * 1997-07-15 1999-03-30 Kita Seisakusho:Kk Contact member

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000214272A (en) 1999-01-26 2000-08-04 Miyota Kk Alarm clock structure and its assembly method
JP2004347498A (en) 2003-05-23 2004-12-09 Seiko Instruments Inc Contact structure body of timepiece and clock equipped with its structure body
JP2007073441A (en) 2005-09-08 2007-03-22 Matsushita Electric Works Ltd Conductive contactor and conductive contactor assembly
JP2014062866A (en) 2012-09-24 2014-04-10 Seiko Epson Corp Built-in antenna electronic clock

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