JP3542000B2 - Electrical cord holding structure - Google Patents

Electrical cord holding structure Download PDF

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Publication number
JP3542000B2
JP3542000B2 JP22690696A JP22690696A JP3542000B2 JP 3542000 B2 JP3542000 B2 JP 3542000B2 JP 22690696 A JP22690696 A JP 22690696A JP 22690696 A JP22690696 A JP 22690696A JP 3542000 B2 JP3542000 B2 JP 3542000B2
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JP
Japan
Prior art keywords
circuit board
electric cord
case
notch
notch engaging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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JP22690696A
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Japanese (ja)
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JPH1070377A (en
Inventor
司 阿部
修 内藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Seiki Co Ltd
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Nippon Seiki Co Ltd
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Filing date
Publication date
Application filed by Nippon Seiki Co Ltd filed Critical Nippon Seiki Co Ltd
Priority to JP22690696A priority Critical patent/JP3542000B2/en
Publication of JPH1070377A publication Critical patent/JPH1070377A/en
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Publication of JP3542000B2 publication Critical patent/JP3542000B2/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00Apparatus or processes for manufacturing printed circuits
    • H05K3/30Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/306Lead-in-hole components, e.g. affixing or retention before soldering, spacing means

Description

【0001】
【発明の属する技術分野】
本発明は、ケース内に回路基板を収納し、この回路基板に電気接続される電気コードをケース外に導出してなるものにおいて、この電気コードの保持構造に関するものである。
【0002】
【従来の技術】
従来ケース内に回路基板を収納し、この回路基板に電気接続される電気コードをケース外に導出する構造としては、図6に示すようなものがあり、この場合上ケースAと下ケースBとが設けられ、一方のケースAに回路基板Cを例えばビスにより締め付け固定し、回路基板Cを内側に向けた状態で他方のケースBによって蓋がされて回路基板Cをケース内に収納するものである。回路基板Cには電気コードDの一端部D1が半田付け等の手段によって電気接続されており、この電気コードDの他端部D2は、下ケースBに設けられた開口穴Eを介して外部に導出されており、電気コードDの他端部D2には、図示しないコネクタ等が設けられ、他の電気接続手段と結合可能に設けられている。
【0003】
【発明が解決しようとする課題】
しかしながら、従来構造にあっては、この電気コードDを他の電気接続手段と組付けを行う際、または、使用状態である組み付け状態での振動等によって、ケースの外部に引き出された電気コードDの他端部D2に対して外力,特に引張力が加わった場合、電気コードDの一端部D1側である回路基板Cへの半田付け部に力が加わって、半田付け箇所の剥離や断線等による通電不良が発生する恐れがあった。
【0004】
そこで、この問題を解決する手段として、例えば回路基板との電気接続箇所からケースの外部に引き出される手前までの間において、ケースの内部にリブやピン等の迂回部材を突設して、この迂回部材に対して電気コードを蛇行させて引き廻し配設したり、巻き付けたりして引き廻した後、ケース外部に引き出し案内した構成を採用することにより、電気コードの引き出し端部に外力が加わったとしても、外力をこの電気コードの蛇行部分若しくは巻き付け部分で受けることにより、回路基板との電気接続部分である半田付け部には直接力が加わらないようにするものもある。
【0005】
しかしながら、上述した解決手段は、図6の従来例に示されるような、回路基板Cと、この回路基板Cと平行に対向させて設けられるケースBの底部Fから、電気コードDを外部に引き出し案内する構成にあっては、電気コードDの引き出し方向に対してケースBと電気コードDが平行にラップする箇所が少ないために、ピンやリブ等を形成することができず、採用できないといった欠点を有していた。
【0006】
また、他にケース内部に図示しない別個のコードクランプ部材を設けてコードを固定支持することも考えられるが、部品点数が増し、コストを増加させるといった問題を有している。
【0007】
本発明は上記の問題点に鑑みなされたものであり、簡単な構成にして、電気コードの引き出し端部に外力が加わったとしても電気コードと回路基板との電気接続部分を保護することができる電気コードの保持構造を提供することを目的とする。
【0008】
【課題を解決するための手段】
本発明は、ケース内部に収納された回路基板と、この回路基板に電気コードを電気接続する接続部と、前記電気コードをケース外部に引き出し可能に設けた引き出し端部と、前記回路基板の前記接続部の周囲に少なくとも複数設けられた穴状または切欠状の係止部とを有し、前記接続部に電気接続された前記電気コードは前記回路基板の端部を経由して折り返されて前記複数の穴状または切欠状の係止部に挿入されることによって前記回路基板の表裏面に巻廻し状態に保持されると共に、前記回路基板の表裏面に蛇行状態に保持されるものである。
【0011】
【発明の実施の形態】
ケース内に回路基板を収納し、この回路基板に電気接続される電気コードをケース外に導出する構造において、ケース内部に収納された回路基板に、電気コードが電気接続される接続部を設けるとともに、この接続部の周囲には第1の切欠係止部及び第2の切欠係止部を設けている。電気コードは、この第1及び第2の切欠係止部に挿通されて回路基板の表裏面に交互に引き廻し案内される。電気コードは、第1及び第2の切欠係止部によって蛇行状態若しくは巻き付け状態に保持されるので、たとえ、ケース組み付け後において電気コードの引き出し端部に引っ張り力が加わったとしても、この力を電気コードの接触する第1及び第2の切欠係止部の縁部によって受け、回路基板の接続部に対し大きな力が加わることを防止できる。
【0012】
【実施例】
以下本発明の実施例を添付図面に基づいて説明する。図1は、本発明の第1実施例を示すものであり、上ケース1と下ケース2とを設け、上ケース1に回路基板3を、固定手段であるフック4の係合により取り付け固定するようにしている。
【0013】
電気コード5の一端側5Aは、回路基板3に半田付接続された接続部6が形成され、電気コード5の他端側を引き出し端部5Bとして形成しており、この引き出し端部5Bは、下ケース2に設けられた引き出し穴部7を介して外部に挿出されている。回路基板3は、このようにして上ケース1に取り付けられるとともに、上下のケース1,2を閉塞することによりケース内に収容されるものである。
【0014】
そして、本発明にあっては、このケースの内部に収納される回路基板3に対し、前述した電気コード5の一端側5Aを半田付け接続した接続部6の周囲に少なくとも2つの穴状部からなる切欠係止部8を設けて構成している。
【0015】
この切欠係止部8は、接続部6に近接して設けられた第1の切欠係止部81と、この第1の切欠係止部81から所定間隔隔てて設けられた第2の切欠係止部82とからなるものであり、この場合、回路基板3の上面にて半田付けされた電気コード5は、下面側31から引き出され、第1の切欠係止部81に挿通されて上面側32に引き廻され、その後、第2の切欠係止部82に挿通されて再び下面側31に引き廻される。
そして、電気コード5の引き出し端部5Bは、下ケース2の引き出し穴部7から外部に向けて引き出される。
【0016】
こうして電気コード5は前記第1及び第2の切欠係止部81,82によって、回路基板3の表裏面に交互に引き廻し配設されて、接続部6から引き出し端部5Bとの間で蛇行状に保持されることになり、例えば電気コード5を他の電気接続手段と組付けを行う際、または、使用状態である組み付け状態での振動等によって、ケースの外部に引き出された電気コード5の引き出し端部5Bに対して外力,特に引張力が加わった場合にあっても、この回路基板3の切欠係止部8に挿通される電気コード5の蛇行部分、つまり第1及び第2の切欠係止部81,82の縁部に接触する電気コード5部分により外力を受けることにより、電気コード5を抜け止め状態に保持できるものであり、電気コード5の接続部6である回路基板3への半田付け箇所に加わる力を緩和でき、半田付け部の通電不良等の問題を解決することができる。
【0017】
また、この第1実施例では、外力が直接加わる前記回路基板3の第2の切欠係止部82の近傍に前記回路基板3に突き当て支持可能な補強部材9を下ケース2から一体的に突き出し形成している。
【0018】
従って、下ケース2から引き出し穴部7を介して外部へと導出される電気コード5の引き出し端部5Bに、その外部側から引っ張り力が加わって、回路基板3の第2の切欠係止部82の端縁部分に前記引っ張り力による応力が加わったとしても、前記補強部材9によって回路基板3を支持して曲げを防止して保護することが可能となり、回路基板3の割れや回路基板3上の導電パターンの断線等を未然に防ぐことができる。
【0019】
図2及び図3は、本発明の第2実施例を示すものであり、接続部6に近接して設けられた第1の切欠係止部81と、この第1の切欠係止部81から所定間隔隔てて設けられた第2の切欠係止部82とを設け、この場合、回路基板3の下面側31にて半田付けされた電気コード5は、上面側32から引き出され、回路基板3の端部3Eを経由して折り返されて回路基板3の下面側31から第1の切欠係止部81に挿通されて上面側32に引き廻され、その後、第2の切欠係止部82に挿通されて再び下面側31に引き廻されるよう構成したものである。
【0020】
こうして電気コード5は、第1の切欠係止部81と回路基板3の端部3Eとの間で回路基板3の表裏面に交互に引き廻し配設され、更に、前記第1及び第2の切欠係止部81,82によって、回路基板3の表裏面に交互に引き廻し配設され、接続部6から引き出し端部5Bとの間で巻廻し状態かつ蛇行状態に保持されることになり、例えば電気コード5を他の電気接続手段と組付けを行う際、または、使用状態である組み付け状態での振動等によって、ケースの外部に引き出された電気コード5の引き出し端部5Bに対して外力,特に引張力が加わった場合にあっても、外力をこの回路基板3の第1及び第2の切欠係止部81,82に挿通される電気コード5の蛇行部分、及び第1の切欠係止部81と回路基板3の端部3Eとの間で折り返された巻廻し部分にて受けて、電気コード5を抜け止め状態に保持できるものであり、電気コード5の接続部6である回路基板3への半田付け箇所に加わる力を緩和でき、半田付け部の通電不良等の問題を解決することができる。
【0021】
図4は、本発明の第3実施例を示すものであり、接続部6を挟んでその両側に第1の切欠係止部81及び第2の切欠係止部82を設けたものである。
この場合、回路基板3の下面31にて半田付けされた電気コード5は、上面側32から引き出され、第1の切欠係止部81に挿通されて下面側31に引き廻され、その後、第2の切欠係止部82に挿通されて再び上面側32に引き廻される。そして、さらに再び第1の切欠係止部81に挿通されて下面側31に引き廻されるよう構成したものである。
【0022】
こうして電気コード5は、第1の切欠係止部81及び第2の切欠係止部82との間で巻き付けられることにより、回路基板3の表裏面に交互に引き廻し配設されるものであり、他の実施例と同様の効果を得ることができる。
【0023】
図5は、本発明の第4実施例を示すものであり、接続部6に近接して設けられ、回路基板3の端部を切り欠いて形成した第1の切欠係止部81と、この第1の切欠係止部81から所定間隔隔てて設けられ、第1の切欠係止部81と同様回路基板3の端部を切り欠いて形成した第2の切欠係止部82とを設けたものである。
【0024】
この場合、回路基板3の下面31にて半田付けされた電気コード5は、上面側32から引き出され、回路基板3の端部3Eを経由して折り返されて回路基板3の下面側31から第1の切欠係止部81にその切欠係止部81の開口側から挿通させて上面側32に引き廻され、その後、第2の切欠係止部82にその切欠係止部82の開口側から挿通させて再び下面側31に引き廻されるよう構成したものである。
【0025】
こうして電気コード5は、第1の切欠係止部81及び回路基板3の端部3Eとの間で回路基板3の表裏面に交互に引き廻し配設され、更に、前記第1及び第2の切欠係止部81,82によって、回路基板3の表裏面に交互に引き廻し配設され、接続部6から引き出し端部5Bとの間で巻廻し状態かつ蛇行状態に保持されることになり、例えば電気コード5を他の電気接続手段と組付けを行う際、または、使用状態である組み付け状態での振動等によって、ケースの外部に引き出された電気コード5の引き出し端部5Bに対して外力,特に引張力が加わった場合にあっても、外力をこの回路基板3の第1及び第2の切欠係止部81,82に挿通される電気コード5の蛇行部分、及び第1の切欠係止部81と回路基板3の端部3Eとの間で折り返された巻廻し部分にて受けて、電気コード5を抜け止め状態に保持できるものであり、電気コード5の接続部6である回路基板3への半田付け箇所に加わる力を緩和でき、半田付け部の通電不良等の問題を解決することができる。
【0026】
この第実施例によれば、第1及び第2の切欠係止部81,82を回路基板3の端部を切り欠くことにより形成したので、電気コードを回路基板に引き廻す際には、電気コード5を回路基板3の側方から切欠係止部81,82に入り込ませるだけでよく、切欠係止部81,82に対し電気コード5の途中部分から挿通させることができ、前述した実施例の作用効果に加え、組み付け時における電気コード5の引き廻しの簡素化が計れるものである。
【0027】
なお、本発明の実施例においては、接続部6すなわち電気コード5の回路基板3への電気接続は半田付けにより行っていたが、例えばコネクタによるものや、加締めや熱圧着等による電気接続手段であってもよい。
【0028】
また、本実施例にあっては、上ケース1と下ケース2とからなる回路基板3の収納構造であったが、上ケースまたは下ケースのみにて回路基板の一面側のみを覆いかぶせたものであってもよい。
【0029】
また、切欠係止部8にあっては、回路基板3上の形成位置に応じてそれぞれ穴状,切欠状等の選択を行えばよく、また、その形状や個数においても適宜選択すればよいものである。
【0030】
【発明の効果】
以上本発明によれば、簡単な構成にして、電気コードの引き出し端部に外力が加わったとしても電気コードと回路基板との電気接続部分を保護することができる電気コードの保持構造を提供することができる。
【図面の簡単な説明】
【図1】本発明の第1実施例を示す断面図である。
【図2】本発明の第2実施例の要部を示す断面図である。
【図3】本発明の第2実施例における要部を示す下面側から見た斜視図である。
【図4】本発明の第3実施例の要部を示す断面図である。
【図5】本発明の第4実施例の要部を示す下面側からみた斜視図である。
【図6】従来例を示す断面図である。
【符号の説明】
1 上ケース
2 下ケース
3 回路基板
5 電気コード
5B 引き出し端部
6 接続部
8 切欠係止部
81 第1の切欠係止部
82 第2の切欠係止部
9 補強部材
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a structure in which a circuit board is housed in a case and an electric cord electrically connected to the circuit board is led out of the case.
[0002]
[Prior art]
As a conventional structure in which a circuit board is housed in a case and an electric cord electrically connected to the circuit board is led out of the case, there is a structure as shown in FIG. The circuit board C is fastened and fixed to one case A by, for example, a screw, and the circuit board C is covered with the other case B in a state where the circuit board C faces inward, and the circuit board C is stored in the case. is there. One end D1 of the electric cord D is electrically connected to the circuit board C by means such as soldering, and the other end D2 of the electric cord D is connected to the outside via an opening E provided in the lower case B. The other end D2 of the electric cord D is provided with a connector (not shown) or the like, and is provided so as to be connectable to other electric connection means.
[0003]
[Problems to be solved by the invention]
However, in the conventional structure, when the electric cord D is assembled with other electric connection means, or when the electric cord D is pulled out of the case due to vibration or the like in an assembled state in use. When an external force, particularly a tensile force, is applied to the other end D2 of the electrical cord D, a force is applied to the soldered portion to the circuit board C on the one end D1 side of the electric cord D, and peeling or disconnection of the soldered portion is performed. There is a fear that a current-carrying failure may occur.
[0004]
Therefore, as a means for solving this problem, for example, a detour member such as a rib or a pin is protruded inside the case from the point of electrical connection with the circuit board to just before being pulled out of the case, and this detour is performed. An external force was applied to the end of the electric cord by adopting a configuration in which the electric cord was meandered around the member, laid out, wrapped, wound and laid out, and then pulled out and guided to the outside of the case. In some cases, however, an external force is received by the meandering portion or the winding portion of the electric cord, so that no direct force is applied to the soldered portion, which is an electric connection portion with the circuit board.
[0005]
However, the above-mentioned solution draws the electric cord D to the outside from a circuit board C and a bottom portion F of a case B provided so as to face in parallel with the circuit board C as shown in the conventional example of FIG. In the configuration for guiding, there are few places where the case B and the electric cord D wrap in parallel with respect to the drawing direction of the electric cord D, so that pins and ribs cannot be formed and cannot be adopted. Had.
[0006]
In addition, it is conceivable to provide a separate cord clamp member (not shown) inside the case to fix and support the cord. However, there is a problem that the number of parts increases and the cost increases.
[0007]
The present invention has been made in view of the above problems, and has a simple configuration, and can protect an electric connection portion between an electric cord and a circuit board even when an external force is applied to a lead end of the electric cord. An object of the present invention is to provide an electric cord holding structure.
[0008]
[Means for Solving the Problems]
The present invention provides a circuit board housed inside a case, a connecting portion for electrically connecting an electric cord to the circuit board, a drawer end provided so that the electric cord can be drawn out of the case, and At least a plurality of hole-shaped or notched locking portions provided around the connection portion, and the electric cord electrically connected to the connection portion is folded back via an end of the circuit board and By being inserted into a plurality of hole-shaped or notched locking portions, the circuit board is held in a wound state on the front and back surfaces of the circuit board, and is held in a meandering state on the front and back surfaces of the circuit board.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
In a structure in which a circuit board is housed in a case and an electric cord electrically connected to the circuit board is led out of the case, the circuit board housed inside the case is provided with a connection portion to which the electric code is electrically connected. A first notch engaging portion and a second notch engaging portion are provided around the connecting portion. The electric cord is inserted through the first and second notch engaging portions and alternately guided around the front and back surfaces of the circuit board. Since the electric cord is held in a meandering state or a wound state by the first and second notch engaging portions, even if a pulling force is applied to the drawn end of the electric cord after the case is assembled, this force is applied. The electric cord is received by the edges of the first and second notch engaging portions in contact with the electric cord, so that a large force can be prevented from being applied to the connecting portion of the circuit board.
[0012]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows a first embodiment of the present invention, in which an upper case 1 and a lower case 2 are provided, and a circuit board 3 is attached and fixed to the upper case 1 by engaging a hook 4 as fixing means. Like that.
[0013]
On one end 5A of the electric cord 5, a connection portion 6 connected to the circuit board 3 by soldering is formed, and the other end of the electric cord 5 is formed as a drawn end 5B. It is inserted outside through a drawer hole 7 provided in the lower case 2. The circuit board 3 is attached to the upper case 1 in this manner, and is accommodated in the case by closing the upper and lower cases 1 and 2.
[0014]
In the present invention, at least two hole-shaped portions are formed around the connection portion 6 to which the one end 5A of the electric cord 5 is connected by soldering to the circuit board 3 housed in the case. The notch locking portion 8 is provided.
[0015]
The notch engaging portion 8 includes a first notch engaging portion 81 provided near the connecting portion 6 and a second notch engaging portion provided at a predetermined distance from the first notch engaging portion 81. In this case, the electric cord 5 soldered on the upper surface of the circuit board 3 is pulled out from the lower surface 31 and inserted into the first notch engaging portion 81 to be connected to the upper surface. 32, and then inserted through the second notch engaging portion 82 and again drawn to the lower surface 31.
Then, the drawn end 5B of the electric cord 5 is drawn out from the drawn hole 7 of the lower case 2 to the outside.
[0016]
In this manner, the electric cord 5 is alternately wound around the front and back surfaces of the circuit board 3 by the first and second notch engaging portions 81 and 82, and meanders between the connecting portion 6 and the drawing end portion 5B. The electric cord 5 pulled out of the case when the electric cord 5 is assembled with other electric connection means or when the electric cord 5 is vibrated in an assembled state in use. Even when an external force, particularly a tensile force is applied to the drawn end 5B of the circuit board 3, the meandering portion of the electric cord 5 inserted into the notch engaging portion 8 of the circuit board 3, that is, the first and second portions. By receiving an external force by the electric cord 5 that contacts the edges of the notch engaging portions 81 and 82, the electric cord 5 can be held in a retaining state. Soldering point to Applied force can be relaxed, it is possible to solve the problem of power failure or the like of the soldered portion.
[0017]
Further, in the first embodiment, a reinforcing member 9 which can be abutted against and supported by the circuit board 3 near the second notch engaging portion 82 of the circuit board 3 to which an external force is directly applied is integrally formed from the lower case 2. Projection is formed.
[0018]
Accordingly, a pulling force is applied from the outside to the drawing end portion 5B of the electric cord 5 led out from the lower case 2 through the drawing hole 7, and the second notch locking portion of the circuit board 3 is applied. Even if the tensile force is applied to the edge portion of the circuit board 82, the circuit board 3 can be supported by the reinforcing member 9 to prevent and protect the circuit board 3 from being bent. Disconnection of the upper conductive pattern can be prevented beforehand.
[0019]
FIGS. 2 and 3 show a second embodiment of the present invention, in which a first notch engaging portion 81 provided near the connecting portion 6 and a first notch engaging portion 81 are provided. A second notch engaging portion 82 provided at a predetermined interval is provided. In this case, the electric cord 5 soldered on the lower surface 31 of the circuit board 3 is pulled out from the upper surface 32 and Of the circuit board 3, is inserted from the lower surface side 31 of the circuit board 3 into the first notch engaging portion 81, is routed to the upper surface side 32, and then is returned to the second notch engaging portion 82. It is configured to be inserted and drawn back to the lower surface side 31 again.
[0020]
Thus, the electric cords 5 are alternately routed on the front and back surfaces of the circuit board 3 between the first notch engaging portion 81 and the end 3E of the circuit board 3, and further, the first and second electric cords 5 are provided. The notch engaging portions 81 and 82 are alternately wound around the front and back surfaces of the circuit board 3, and are held in a winding state and a meandering state between the connecting portion 6 and the drawing end portion 5B. For example, when assembling the electric cord 5 with another electric connection means, or by vibration or the like in an assembled state, which is a use state, an external force is applied to the drawn end 5B of the electric cord 5 drawn out of the case. In particular, even when a tensile force is applied, a meandering portion of the electric cord 5 inserted into the first and second notch engaging portions 81 and 82 of the circuit board 3 and the first notch Folded between the stop 81 and the end 3E of the circuit board 3 The electric cord 5 can be received in the wound portion so that the electric cord 5 can be held in a retaining state, and the force applied to the soldering portion of the electric cord 5 to the circuit board 3 which is the connecting portion 6 can be reduced, and the soldering portion can be reduced. Can be solved.
[0021]
FIG. 4 shows a third embodiment of the present invention, in which a first notch engaging portion 81 and a second notch engaging portion 82 are provided on both sides of a connecting portion 6.
In this case, the electric cord 5 soldered on the lower surface 31 of the circuit board 3 is pulled out from the upper surface 32, inserted into the first notch locking portion 81 and routed to the lower surface 31, and thereafter, It is inserted through the second notch engaging portion 82 and is drawn back to the upper surface 32 again. Then, it is configured to be inserted into the first notch locking portion 81 again and drawn around to the lower surface side 31.
[0022]
In this way, the electric cord 5 is wound around the first notch engaging portion 81 and the second notch engaging portion 82 so as to be alternately wound around the front and back surfaces of the circuit board 3. The same effects as those of the other embodiments can be obtained.
[0023]
FIG. 5 shows a fourth embodiment of the present invention, in which a first notch engaging portion 81 provided near the connecting portion 6 and formed by cutting out an end of the circuit board 3 is provided. A second notch engaging portion 82 provided at a predetermined distance from the first notch engaging portion 81 and formed by notching an end of the circuit board 3 like the first notch engaging portion 81 is provided. Things.
[0024]
In this case, the electric cord 5 soldered on the lower surface 31 of the circuit board 3 is pulled out from the upper surface 32, is folded back through the end 3 E of the circuit board 3, and is folded from the lower surface 31 of the circuit board 3. The first notch engaging portion 81 is inserted from the opening side of the notch engaging portion 81 and drawn to the upper surface side 32, and thereafter, the second notch engaging portion 82 is inserted from the opening side of the notch engaging portion 82. It is configured to be inserted and drawn back to the lower surface side 31 again.
[0025]
In this way, the electric cord 5 is alternately routed on the front and back surfaces of the circuit board 3 between the first notch engaging portion 81 and the end 3E of the circuit board 3, and further, the first and second electric cords are arranged. The notch engaging portions 81 and 82 are alternately wound around the front and back surfaces of the circuit board 3, and are held in a winding state and a meandering state between the connecting portion 6 and the drawing end portion 5B. For example, when assembling the electric cord 5 with another electric connection means, or by vibration or the like in an assembled state, which is a use state, an external force is applied to the drawn end 5B of the electric cord 5 drawn out of the case. In particular, even when a tensile force is applied, a meandering portion of the electric cord 5 inserted into the first and second notch engaging portions 81 and 82 of the circuit board 3 and the first notch Folded between the notch 81 and the end 3E of the circuit board 3 The electric cord 5 can be received in the wound portion so that the electric cord 5 can be retained in a retaining state, and the force applied to the soldered portion of the electric cord 5 to the circuit board 3 which is the connection portion 6 can be reduced, and the soldering can be performed. It is possible to solve problems such as poor current supply of the unit.
[0026]
According to the fourth embodiment, the first and second notch engaging portions 81 and 82 are formed by cutting out the ends of the circuit board 3, so that when the electric cord 5 is routed around the circuit board 3 , It is only necessary to insert the electric cord 5 from the side of the circuit board 3 into the notch engaging portions 81 and 82, and the electric cord 5 can be inserted into the notch engaging portions 81 and 82 from the middle of the electric cord 5. In addition to the functions and effects of the embodiment, the wiring of the electric cord 5 at the time of assembly can be simplified.
[0027]
In the embodiment of the present invention, the connection portion 6, that is, the electric cord 5 is electrically connected to the circuit board 3 by soldering. However, for example, a connector or an electric connection means such as caulking or thermocompression bonding is used. It may be.
[0028]
Further, in this embodiment, the circuit board 3 is composed of the upper case 1 and the lower case 2, but the upper case or the lower case covers only one side of the circuit board. It may be.
[0029]
In the notch engaging portion 8, a hole-like shape, a notch-like shape, or the like may be selected according to the formation position on the circuit board 3, and the shape and the number may be appropriately selected. It is.
[0030]
【The invention's effect】
According to the present invention, there is provided an electric cord holding structure having a simple configuration and capable of protecting an electric connection portion between an electric cord and a circuit board even when an external force is applied to a lead end of the electric cord. be able to.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a first embodiment of the present invention.
FIG. 2 is a sectional view showing a main part of a second embodiment of the present invention.
FIG. 3 is a perspective view showing a main part according to a second embodiment of the present invention as viewed from a lower surface side.
FIG. 4 is a sectional view showing a main part of a third embodiment of the present invention.
FIG. 5 is a perspective view showing a main part of a fourth embodiment of the present invention as viewed from a lower surface side.
FIG. 6 is a sectional view showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Upper case 2 Lower case 3 Circuit board 5 Electric cord 5B Drawer end 6 Connection part 8 Notch locking part 81 First notch locking part 82 Second notch locking part 9 Reinforcement member

Claims (1)

ケース内部に収納された回路基板と、この回路基板に電気コードを電気接続する接続部と、前記電気コードをケース外部に引き出し可能に設けた引き出し端部と、前記回路基板の前記接続部の周囲に少なくとも複数設けられた穴状または切欠状の係止部とを有し、前記接続部に電気接続された前記電気コードは前記回路基板の端部を経由して折り返されて前記複数の穴状または切欠状の係止部に挿入されることによって前記回路基板の表裏面に巻廻し状態に保持されると共に、前記回路基板の表裏面に蛇行状態に保持されることを特徴とする電気コードの保持構造。A circuit board housed inside the case, a connection part for electrically connecting an electric cord to the circuit board, a drawer end provided so that the electric cord can be drawn out of the case, and a periphery of the connection part of the circuit board And at least a plurality of hole-shaped or notch-shaped locking portions provided, and the electric cord electrically connected to the connection portion is folded back via an end of the circuit board to form the plurality of hole-shaped Alternatively, by being inserted into a notch-shaped locking portion, the electric cord is held in a wound state on the front and back surfaces of the circuit board, and is held in a meandering state on the front and back surfaces of the circuit board. Retention structure.
JP22690696A 1996-08-28 1996-08-28 Electrical cord holding structure Expired - Fee Related JP3542000B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22690696A JP3542000B2 (en) 1996-08-28 1996-08-28 Electrical cord holding structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22690696A JP3542000B2 (en) 1996-08-28 1996-08-28 Electrical cord holding structure

Publications (2)

Publication Number Publication Date
JPH1070377A JPH1070377A (en) 1998-03-10
JP3542000B2 true JP3542000B2 (en) 2004-07-14

Family

ID=16852459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22690696A Expired - Fee Related JP3542000B2 (en) 1996-08-28 1996-08-28 Electrical cord holding structure

Country Status (1)

Country Link
JP (1) JP3542000B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4678258B2 (en) * 2005-08-11 2011-04-27 パナソニック電工株式会社 Wiring board and light source device using the same
JP2007140369A (en) * 2005-11-22 2007-06-07 Fujikura Ltd Optical compound printed board
JP4966350B2 (en) * 2009-09-14 2012-07-04 矢崎総業株式会社 Harness clamp structure
JP2016076618A (en) * 2014-10-07 2016-05-12 パナソニックIpマネジメント株式会社 Circuit board and electrical equipment

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