JP4252914B2

JP4252914B2 - LED connection circuit structure

Info

Publication number: JP4252914B2
Application number: JP2004059239A
Authority: JP
Inventors: 憲嗣榎本
Original assignee: Furukawa Electric Co Ltd
Current assignee: Furukawa Electric Co Ltd
Priority date: 2003-10-30
Filing date: 2004-03-03
Publication date: 2009-04-08
Anticipated expiration: 2024-03-03
Also published as: JP2005159260A

Description

本発明は、多数のＬＥＤ（発光ダイオード）を用いた、自動車の光源などに適用されるＬＥＤ接続回路構造体に関するものである。 The present invention relates to an LED connection circuit structure that uses a large number of LEDs (light emitting diodes) and is applied to a light source of an automobile.

自動車のフロント部やリア部のランプには、フィラメントを使用した電球に比べ消費電力が少なく寿命も長い、ＬＥＤが多数使用されている。これらのＬＥＤに給電するための配線材としては従来、丸電線やバスバーが使用されている（特許文献１参照）。通常、これらのＬＥＤは、複数のＬＥＤを直列に接続した直列回路を複数、並列に接続した直並列回路の構成で使用される（特許文献１、２参照）。 Many LEDs are used for the front and rear lamps of automobiles, which consume less power and have a longer life compared to light bulbs using filaments. Conventionally, round wires and bus bars have been used as wiring materials for supplying power to these LEDs (see Patent Document 1). Normally, these LEDs are used in a series-parallel circuit configuration in which a plurality of series circuits in which a plurality of LEDs are connected in series are connected in parallel (see Patent Documents 1 and 2).

また近年、ＬＥＤの高輝度化に伴って発熱量が増加しており、その対策として、ＬＥＤが接続されたバスバーや丸電線などの配線材を放熱体として使用することも行われている。 In recent years, the amount of heat generation has increased with the increase in brightness of LEDs. As a countermeasure, wiring materials such as bus bars and round electric wires to which LEDs are connected are also used as heat radiators.

特開平１０−２０８５１５号公報JP-A-10-208515 特開平６−３１８７３２号公報JP-A-6-318732

しかしながら、多数のＬＥＤを丸電線やバスバーにより直並列接続するには、予め決められた長さの多種類の丸電線やバスバーを用意し、それを用いて多数のＬＥＤを所定の回路パターンに接続する必要があり、丸電線やバスバーの準備作業、接続作業が面倒である。また丸電線は導体断面積の割に表面積が小さいため放熱性がよくない。一方、バスバーは丸電線よりも放熱性はよいが、柔軟性がないため、多数のＬＥＤをランプの湾曲したレンズ形状に合わせて立体的に配置するためには予め屈曲成形しておく必要があり、コスト高になるだけでなく、レンズ形状や設計変更に対して柔軟に対応することが困難である。 However, in order to connect a large number of LEDs in series and parallel with a round wire or bus bar, a variety of round wires or bus bars of a predetermined length are prepared and used to connect a large number of LEDs to a predetermined circuit pattern. Preparation work and connection work of a round electric wire and a bus bar are troublesome. Moreover, since a round wire has a small surface area with respect to a conductor cross-sectional area, heat dissipation is not good. On the other hand, the bus bar has better heat dissipation than the round electric wire, but it is not flexible, so it is necessary to bend in advance to arrange a large number of LEDs in three dimensions according to the curved lens shape of the lamp. In addition to high costs, it is difficult to flexibly cope with lens shape and design changes.

本発明の目的は、以上のような課題を解決したＬＥＤ接続回路構造体を提供することにある。 The objective of this invention is providing the LED connection circuit structure which solved the above subjects.

本発明に係るＬＥＤ接続回路構造体は、多数のＬＥＤを接続する配線材として、平行配置された４本以上のフラット導体に一括絶縁被覆を施してなるフラットケーブルを用い、
このフラットケーブルのフラット導体のうち電源に接続される２本のフラット導体以外のフラット導体の所要箇所にフラット導体の切断部を設け、この切断部を設けたフラット導体間にＬＥＤを接続すると共に、前記切断部を設けたフラット導体と切断部を設けないフラット導体間に短絡部を設けることにより、複数のＬＥＤを直列に接続した直列回路が複数、並列に接続された直並列回路を構成し、
前記ＬＥＤのリードとフラットケーブルのフラット導体との接続部は、ＬＥＤのリードをフラットケーブルのフラット導体のある位置に配置し、ＬＥＤのリードに跨る突き刺し型接続子の突き刺し片をフラットケーブルのフラット導体のある位置に突き刺し、フラットケーブルを貫通した突き刺し片の先端部を曲成してかしめることにより形成されている、
ことを特徴とするものである。 The LED connection circuit structure according to the present invention uses a flat cable formed by collectively covering four or more flat conductors arranged in parallel as a wiring material for connecting a large number of LEDs,
The flat conductor of the flat cable is provided with a cut portion of the flat conductor at a required portion of the flat conductor other than the two flat conductors connected to the power source, and the LED is connected between the flat conductors provided with the cut portion, By providing a short circuit portion between the flat conductor provided with the cut portion and the flat conductor not provided with the cut portion, a plurality of series circuits in which a plurality of LEDs are connected in series constitute a series-parallel circuit connected in parallel,
The connection part between the LED lead and the flat conductor of the flat cable is arranged such that the LED lead is disposed at a position where the flat conductor of the flat cable is located, and the piercing piece of the piercing-type connector straddling the LED lead is the flat conductor of the flat cable. It is formed by piercing at a certain position and bending and caulking the tip of the piercing piece penetrating the flat cable.
It is characterized by this.

本発明に係るＬＥＤ接続回路構造体は、多数のＬＥＤを接続する配線材として、平行配置された４本以上のフラット導体に一括絶縁被覆を施してなるフラットケーブルを用い、
このフラットケーブルのフラット導体のうち電源に接続される２本のフラット導体以外のフラット導体の所要箇所にフラット導体の切断部を設け、この切断部を設けたフラット導体間にＬＥＤを接続すると共に、前記切断部を設けたフラット導体と切断部を設けないフラット導体間に短絡部を設けることにより、複数のＬＥＤを直列に接続した直列回路が複数、並列に接続された直並列回路を構成し、
前記ＬＥＤのリードとフラットケーブルのフラット導体との接続部は、ＬＥＤのリードをフラットケーブルのフラット導体のある位置に配置し、ＬＥＤのリードに跨る突き刺し型接続子の突き刺し片をフラットケーブルのフラット導体のある位置に突き刺し、フラットケーブルを貫通した突き刺し片の先端部をフラットケーブルの裏側に配置された受け板のスロットに挿入することにより形成されている、
ことを特徴とするものであってもよい。 The LED connection circuit structure according to the present invention uses a flat cable formed by collectively covering four or more flat conductors arranged in parallel as a wiring material for connecting a large number of LEDs,
The flat conductor of the flat cable is provided with a cut portion of the flat conductor at a required portion of the flat conductor other than the two flat conductors connected to the power source, and the LED is connected between the flat conductors provided with the cut portion, By providing a short circuit portion between the flat conductor provided with the cut portion and the flat conductor not provided with the cut portion, a plurality of series circuits in which a plurality of LEDs are connected in series constitute a series-parallel circuit connected in parallel,
The connection part between the LED lead and the flat conductor of the flat cable is arranged such that the LED lead is disposed at a position where the flat conductor of the flat cable is located, and the piercing piece of the piercing-type connector straddling the LED lead is the flat conductor of the flat cable. Is formed by inserting the tip of the piercing piece penetrating the flat cable into the slot of the receiving plate arranged on the back side of the flat cable,
It may be characterized by that.

本発明に係るＬＥＤ接続回路構造体は、多数のＬＥＤを接続する配線材として、平行配置された４本以上のフラット導体に一括絶縁被覆を施してなるフラットケーブルを用い、
このフラットケーブルのフラット導体のうち電源に接続される２本のフラット導体以外のフラット導体の所要箇所にフラット導体の切断部を設け、この切断部を設けたフラット導体間及び前記切断部を設けたフラット導体と切断部を設けないフラット導体間にＬＥＤを接続することにより、複数のＬＥＤを直列に接続した直列回路が複数、並列に接続された直並列回路を構成し、
前記ＬＥＤのリードとフラットケーブルのフラット導体との接続部は、ＬＥＤのリードをフラットケーブルのフラット導体のある位置に配置し、ＬＥＤのリードに跨る突き刺し型接続子の突き刺し片をフラットケーブルのフラット導体のある位置に突き刺し、フラットケーブルを貫通した突き刺し片の先端部を曲成してかしめることにより形成されている、
ことを特徴とするものであってもよい。 The LED connection circuit structure according to the present invention uses a flat cable formed by collectively covering four or more flat conductors arranged in parallel as a wiring material for connecting a large number of LEDs,
Of the flat conductors of the flat cable, cut portions of the flat conductors are provided at required portions of the flat conductors other than the two flat conductors connected to the power source, and the cut conductors are provided between the flat conductors provided with the cut portions. By connecting the LED between the flat conductor and the flat conductor not provided with a cut portion, a plurality of series circuits in which a plurality of LEDs are connected in series constitutes a series-parallel circuit in which the LEDs are connected in parallel.
The connection part between the LED lead and the flat conductor of the flat cable is arranged such that the LED lead is disposed at a position where the flat conductor of the flat cable is located, and the piercing piece of the piercing-type connector straddling the LED lead is the flat conductor of the flat cable. It is formed by piercing at a certain position and bending and caulking the tip of the piercing piece penetrating the flat cable.
It may be characterized by that.

本発明に係るＬＥＤ接続回路構造体は、多数のＬＥＤを接続する配線材として、平行配置された４本以上のフラット導体に一括絶縁被覆を施してなるフラットケーブルを用い、
このフラットケーブルのフラット導体のうち電源に接続される２本のフラット導体以外のフラット導体の所要箇所にフラット導体の切断部を設け、この切断部を設けたフラット導体間及び前記切断部を設けたフラット導体と切断部を設けないフラット導体間にＬＥＤを接続することにより、複数のＬＥＤを直列に接続した直列回路が複数、並列に接続された直並列回路を構成し、
前記ＬＥＤのリードとフラットケーブルのフラット導体との接続部は、ＬＥＤのリードをフラットケーブルのフラット導体のある位置に配置し、ＬＥＤのリードに跨る突き刺し型接続子の突き刺し片をフラットケーブルのフラット導体のある位置に突き刺し、フラットケーブルを貫通した突き刺し片の先端部をフラットケーブルの裏側に配置された受け板のスロットに挿入することにより形成されている、
ことを特徴とするものであってもよい。 The LED connection circuit structure according to the present invention uses a flat cable formed by collectively covering four or more flat conductors arranged in parallel as a wiring material for connecting a large number of LEDs,
Of the flat conductors of the flat cable, cut portions of the flat conductors are provided at required portions of the flat conductors other than the two flat conductors connected to the power source, and the cut conductors are provided between the flat conductors provided with the cut portions. By connecting the LED between the flat conductor and the flat conductor not provided with a cut portion, a plurality of series circuits in which a plurality of LEDs are connected in series constitutes a series-parallel circuit in which the LEDs are connected in parallel.
The connection part between the LED lead and the flat conductor of the flat cable is arranged such that the LED lead is disposed at a position where the flat conductor of the flat cable is located, and the piercing piece of the piercing-type connector straddling the LED lead is the flat conductor of the flat cable. Is formed by inserting the tip of the piercing piece penetrating the flat cable into the slot of the receiving plate arranged on the back side of the flat cable,
It may be characterized by that.

本発明に係るＬＥＤ接続回路構造体の関連技術の一例は、多数のＬＥＤを接続する配線材として、平行配置された２本のフラット導体に一括絶縁被覆を施してなるフラットケーブルを用い、このフラットケーブルの長手方向の１箇所又は複数箇所に、一方のフラット導体が切断され、他方のフラット導体が切断されない片方切断部を設け、この片方切断部を複数箇所に設ける場合は２本のフラット導体が交互に切断されるように設け、前記片方切断部で長手方向に区分されたフラットケーブルの、各区間内の２本のフラット導体間にそれぞれ複数のＬＥＤを接続することにより、複数のＬＥＤを並列に接続した並列回路が複数、直列に接続された並直列回路を構成したことを特徴とするものである。 An example of the related technology of the LED connection circuit structure according to the present invention is to use a flat cable in which two flat conductors arranged in parallel are collectively covered with insulation as a wiring material for connecting a large number of LEDs. When one flat conductor is cut at one or a plurality of locations in the longitudinal direction of the cable and the other flat conductor is not cut, a single cut portion is provided. When this one cut portion is provided at a plurality of locations, two flat conductors are provided. A plurality of LEDs are arranged in parallel by connecting a plurality of LEDs between two flat conductors in each section of a flat cable which is provided so as to be cut alternately and sectioned in the longitudinal direction by the one-side cut portion. A plurality of parallel circuits connected to each other constitute a parallel series circuit connected in series.

本発明に係るＬＥＤ接続回路構造体の関連技術の他の例は、多数のＬＥＤを接続する配線材として、平行配置された２本のフラット導体に一括絶縁被覆を施してなるフラットケーブルを用い、このフラットケーブルの長手方向の複数箇所に、２本のフラット導体の短絡部を設け、この短絡部で長手方向に区分されたフラット導体の、所要の区間内にフラット導体の切断部を複数箇所に設けて、各切断部に跨るようにＬＥＤを接続することにより、複数のＬＥＤを直列に接続した直列回路が複数、並列に接続された直並列回路を構成したことを特徴とするものである。 Another example of the related technology of the LED connection circuit structure according to the present invention uses, as a wiring material for connecting a large number of LEDs, a flat cable formed by applying a collective insulation coating to two flat conductors arranged in parallel. Two flat conductor short-circuit portions are provided at a plurality of locations in the longitudinal direction of the flat cable, and flat conductor cut portions are disposed at a plurality of locations within a required section of the flat conductor divided in the longitudinal direction by the short-circuit portions. A series-parallel circuit in which a plurality of series circuits in which a plurality of LEDs are connected in series is connected in parallel is configured by providing and connecting LEDs so as to straddle the respective cutting portions.

本発明に係るＬＥＤ接続回路構造体において、フラット導体の切断部は、フラットケーブルにフラット導体を切断する穴をあけることにより設けられていることが好ましい。
本発明に係るＬＥＤ接続回路構造体において、フラット導体間の短絡部は、両端部に突き刺し片を形成した短絡部材を用い、この短絡部材の両端部の突き刺し片を、フラットケーブルの短絡すべきフラット導体のある位置に突き刺し、フラットケーブルを貫通した突き刺し片の先端部を曲成してかしめることにより、設けられていることが好ましい。 In the LED connection circuit structure according to the present invention, the cut portion of the flat conductor is preferably provided by making a hole in the flat cable for cutting the flat conductor.
In the LED connection circuit structure according to the present invention, the short-circuit portion between the flat conductors uses a short-circuit member formed with piercing pieces at both ends, and the piercing pieces at both ends of the short-circuit member are flat to be short-circuited by the flat cable. It is preferably provided by piercing at a position where there is a conductor and bending and caulking the tip of the piercing piece penetrating the flat cable.

本発明によれば、フラットケーブルの所要箇所にフラット導体の切断部を設けたり、フラット導体の短絡部を設けたりすることで、多数のＬＥＤを直並列接続することができ、バラバラの丸電線やバスバーを使用する場合に比べ、配線材の準備作業、ＬＥＤの接続作業を簡単に効率よく行うことができる。またフラットケーブルはフラット導体を使用しているため、丸電線に比べ導体の表面積が大きく、放熱性が良好である。さらに、多数のＬＥＤをランプのレンズ形状に合わせて立体的に配置することも容易であり、種類の異なるランプ装置や設計変更に対して柔軟に対応することができる。 According to the present invention, a plurality of LEDs can be connected in series and parallel by providing a cut portion of a flat conductor at a required portion of the flat cable, or by providing a short portion of the flat conductor, Compared to the case of using a bus bar, the wiring material preparation work and the LED connection work can be performed easily and efficiently. Moreover, since the flat cable uses the flat conductor, the surface area of the conductor is larger than that of the round electric wire, and the heat dissipation is good. Furthermore, it is easy to arrange a large number of LEDs in conformity with the lens shape of the lamp, and it is possible to flexibly cope with different types of lamp devices and design changes.

また、フラット導体の切断部は、フラットケーブルにパンチング等により穴をあけることで簡単に形成できる。 The cut portion of the flat conductor can be easily formed by punching a hole in the flat cable.

また、フラット導体の短絡部は、突き刺し型の短絡部材を使用することにより、フラットケーブルの絶縁被覆を剥ぐことなく簡単に形成できる。 Further, the short-circuit portion of the flat conductor can be easily formed by using a piercing-type short-circuit member without peeling off the insulation coating of the flat cable.

また、フラットケーブルのフラット導体とＬＥＤのリードとの接続は、突き刺し型の接続子を使用することにより、フラットケーブルの絶縁被覆を剥ぐことなく、簡単に行うことができる。さらにフラットケーブルのフラット導体とＬＥＤのリードとを、突き刺し型の接続子で接続すると、配線材としてバスバーを使用した場合よりも放熱性がよくなることも実験的に明らかとなった。 The connection between the flat conductor and the LED leads of the flat cable by using a piercing type connectors, without stripping the insulating coating of the flat cable can be easily performed. Furthermore the flat conductor and LED lead of the flat cable, connecting with piercing type connectors, the better heat radiation than when using the bus bar as wiring material even revealed experimentally.

〔関連技術Ａ〕図１は本発明に係るＬＥＤ接続回路構造体の関連技術を示す。図において、１０はフラットケーブル、１２はフラットケーブル１０の所定の位置に実装されたＬＥＤである。 [ Related Art A ] FIG. 1 shows a related art of the LED connection circuit structure according to the present invention. In the figure, 10 is a flat cable, and 12 is an LED mounted at a predetermined position of the flat cable 10.

フラットケーブル１０は、平行配置された３本のフラット導体１６Ａ〜１６Ｃにプラスチックフィルム（ポリエチレンテレフタレートフィルム等）の張り合わせにより一括絶縁被覆１８を施したものである。フラット導体１６は例えば厚さ０．１５mm、幅５．２mmの銅テープである。３本のフラット導体のうち両側のフラット導体１６Ａ、１６Ｃは図１（Ｃ）に示すように制御回路３４を備えた電源３２に接続される。また中間のフラット導体１６Ｂは、所要箇所にフラット導体切断部３６が設けられ、長手方向に分断されている。切断部３６はフラットケーブル１０にパンチング等により穴をあけることにより簡単に形成できる。 The flat cable 10 is obtained by applying a collective insulating coating 18 to three flat conductors 16A to 16C arranged in parallel by bonding a plastic film (polyethylene terephthalate film or the like). The flat conductor 16 is, for example, a copper tape having a thickness of 0.15 mm and a width of 5.2 mm. Of the three flat conductors, the flat conductors 16A and 16C on both sides are connected to a power source 32 having a control circuit 34 as shown in FIG. The intermediate flat conductor 16B is provided with a flat conductor cut portion 36 at a required location and is divided in the longitudinal direction. The cutting part 36 can be easily formed by making a hole in the flat cable 10 by punching or the like.

フラット導体１６Ｂには、一つおきの切断部３６を跨ぐようにＬＥＤ１２Ｂが接続され、このＬＥＤ１２Ｂの両端側では、フラット導体１６Ａ、１６Ｂ間にＬＥＤ１２Ａが接続され、フラット導体１６Ｃ、１６Ｂ間にＬＥＤ１２Ｃが接続されている。これにより３個のＬＥＤ１２Ａ〜１２Ｃが直列に接続された直列回路が複数、並列に接続された直並列回路が構成されている。 The LED 12B is connected to the flat conductor 16B so as to straddle every other cut portion 36. At both ends of the LED 12B, the LED 12A is connected between the flat conductors 16A and 16B, and the LED 12C is connected between the flat conductors 16C and 16B. It is connected. As a result, a series-parallel circuit in which a plurality of series circuits in which the three LEDs 12A to 12C are connected in series is connected in parallel is configured.

一般に車両用のランプ装置は、最低８Ｖからの点灯が望ましいとされており、例えば定格３ＶのＬＥＤであれば、３個のＬＥＤを直列に接続すれば９Ｖとなって最低点灯電圧を超える回路となる。そこで図１の実施形態では、３個のＬＥＤ１２を直列接続したものを１ユニットとし、これを複数ユニット並列接続したものである。なお、直列接続するＬＥＤの数、並列接続する直列回路の数は任意である。 In general, it is considered that a lamp device for a vehicle is desirably lit from at least 8V. For example, if the LED has a rating of 3V, a circuit in which three LEDs are connected in series becomes 9V and exceeds the minimum lighting voltage. Become. Therefore, in the embodiment of FIG. 1, one unit is formed by connecting three LEDs 12 in series, and a plurality of units are connected in parallel. The number of LEDs connected in series and the number of series circuits connected in parallel are arbitrary.

このようなＬＥＤ接続回路構造体は、１条のフラットケーブル１０に切断部３６を設けて、ＬＥＤ１２Ａ〜１２Ｃを接続するだけで製造でき、製造が簡単である。また偏平な（表面積の大きい）フラット導体が放熱体となるので、放熱性も良好である。 Such an LED connection circuit structure can be manufactured simply by providing the cut portion 36 in the single flat cable 10 and connecting the LEDs 12A to 12C, and is easy to manufacture. Further, since a flat conductor (having a large surface area) serves as a heat radiator, heat dissipation is also good.

フラットケーブル１０とＬＥＤ１２とは例えば図２のようにして接続することができる。この接続構造は、フラットケーブル１０の絶縁被覆１８を剥ぐことなく、ＬＥＤ１２の一対のリード２０をフラットケーブル１０のフラット導体１６のある位置に載置し、図３に示すような突き刺し型接続子２２を用いてリード２０とフラット導体１６を接続したものである。接続子２２は金属板を加工して、背板部２４の両側に下向きに突き刺し片２６を形成したものである。この接続子２２をリード２０に跨らせ、突き刺し片２６をフラットケーブル１０のフラット導体１６のある位置に突き刺して、フラットケーブル１０を貫通した突き刺し片２６の先端部を内側に曲成してかしめることで、リード２０とフラット導体１６とを接続したものである。 The flat cable 10 and the LED 12 can be connected as shown in FIG. In this connection structure, the pair of leads 20 of the LED 12 is placed at a position where the flat conductor 16 of the flat cable 10 is located without peeling off the insulating coating 18 of the flat cable 10, and a piercing connector 22 as shown in FIG. Is used to connect the lead 20 and the flat conductor 16. The connector 22 is obtained by processing a metal plate and forming piercing pieces 26 on both sides of the back plate portion 24 downward. The connector 22 is straddled across the lead 20, the piercing piece 26 is pierced into a position where the flat conductor 16 of the flat cable 10 is located, and the tip of the piercing piece 26 penetrating the flat cable 10 is bent inward. By crimping, the lead 20 and the flat conductor 16 are connected.

フラットケーブル１０とＬＥＤ１２とは図４のようにして接続することもできる。図４に示す接続構造は、本発明の関連技術であるが、ＬＥＤ１２のリード２０の両側に図５に示すように下向きに突き刺し片２６を形成し、この突き刺し片２６をフラットケーブル１０のフラット導体１６のある位置に突き刺して、フラットケーブル１０を貫通した突き刺し片２６の先端部を内側に曲成してかしめたものである。 It is also possible to connect the flat cable 10 and LED12 is as FIG. The connection structure shown in FIG. 4 is a related technique of the present invention . As shown in FIG. 5, piercing pieces 26 are formed downward on both sides of the lead 20 of the LED 12, and the piercing pieces 26 are flat conductors of the flat cable 10. The piercing piece 26 is pierced at a position 16 and the tip of the piercing piece 26 penetrating the flat cable 10 is bent and crimped inward.

またフラットケーブル１０とＬＥＤ１２とは例えば図６のようにして接続することもできる。図６に示す接続構造は、ＬＥＤ１２の一対のリード２０をフラットケーブル１０のフラット導体１６のある位置に載置し、図３に示すような接続子２２と、図７に示すようなスロット３０を有する受け板２８とを用いて、リード２０とフラット導体１６を接続したものである。すなわち、リード２０とフラット導体１６とは、接続子２２をリード２０に跨らせ、突き刺し片２６をフラットケーブル１０のフラット導体１６のある位置に突き刺して、フラットケーブル１０を貫通した突き刺し片２６の先端部を、フラットケーブル１０の裏側に配置した受け板２８のスロット３０に挿入固定することにより、接続されている。 The flat cable 10 and the LED 12 can be connected as shown in FIG. 6, for example. In the connection structure shown in FIG. 6, the pair of leads 20 of the LED 12 is placed at a position where the flat conductor 16 of the flat cable 10 is located, and the connector 22 as shown in FIG. 3 and the slot 30 as shown in FIG. The lead 20 and the flat conductor 16 are connected by using a receiving plate 28 having the same. That is, the lead 20 and the flat conductor 16 have the connector 22 straddling the lead 20, the piercing piece 26 is pierced at a position where the flat conductor 16 of the flat cable 10 is located, and the piercing piece 26 penetrating the flat cable 10 is inserted. The distal end portion is connected by being inserted and fixed in the slot 30 of the receiving plate 28 disposed on the back side of the flat cable 10.

またフラットケーブル１０とＬＥＤ１２とは例えば図８のようにして接続することもできる。図８に示す接続構造は、本発明の関連技術であるが、図５に示すようなリード２０に突き刺し片２６を形成したＬＥＤ１２と、図７に示すようなスロット３０を有する受け板２８とを用いるものである。すなわち、リード２０とフラット導体１６とは、リード２０の突き刺し片２６をフラットケーブル１０のフラット導体１６のある位置に突き刺して、フラットケーブル１０を貫通した突き刺し片２６の先端部を、フラットケーブル１０の裏側に配置した受け板２８のスロット３０に挿入固定することで、接続されている。 Further, the flat cable 10 and the LED 12 can be connected as shown in FIG. 8, for example. The connection structure shown in FIG. 8 is a related technique of the present invention . The connection structure shown in FIG. 8 includes an LED 12 having a piercing piece 26 formed on a lead 20 as shown in FIG. 5 and a receiving plate 28 having a slot 30 as shown in FIG. It is what is used. That is, the lead 20 and the flat conductor 16 pierce the piercing piece 26 of the lead 20 into a position where the flat conductor 16 of the flat cable 10 is located, and the tip of the piercing piece 26 penetrating the flat cable 10 is connected to the flat cable 10. It is connected by being inserted and fixed in the slot 30 of the receiving plate 28 arranged on the back side.

なお図６及び図８に示す接続構造の場合は、受け板２８のスロット３０の幅を、図６（Ｄ）、図８（Ｄ）に示すように突き刺し片２６の板厚より若干大きくして、突き刺し片２６が、突き破ったフラット導体１６の一部をスロット３０に巻き込んで延伸しながら、スロット３０にきつく挿入されるようにするとよい。このようにすると、突き刺し片２６とフラット導体１６との接触面積が大きくなり、良好な電気的接続状態を得ることができると共に、突き刺し片２６の引き抜けを防止できる。 In the connection structure shown in FIGS. 6 and 8, the width of the slot 30 of the receiving plate 28 is slightly larger than the thickness of the piercing piece 26 as shown in FIGS. 6 (D) and 8 (D). The piercing piece 26 may be inserted into the slot 30 tightly while the part of the flat conductor 16 that has been broken is wound around the slot 30 and stretched. If it does in this way, the contact area of the piercing piece 26 and the flat conductor 16 will become large, while being able to obtain a favorable electrical connection state, the pull-out of the piercing piece 26 can be prevented.

以上のような接続構造を採用すると、フラットケーブル１０のフラット導体１６とＬＥＤ１２のリード２０とを、フラットケーブルの絶縁被覆１８を剥ぐことなく、また半田付けによることなく、簡単に確実に接続することができる。 When the connection structure as described above is adopted, the flat conductor 16 of the flat cable 10 and the lead 20 of the LED 12 can be easily and reliably connected without stripping the flat cable insulation coating 18 or by soldering. Can do.

またフラットケーブルにＬＥＤのリードを上記のように突き刺し接続方式で接続すると、ＬＥＤの放熱効果が向上することも判明した。一般にＬＥＤは点灯によって発熱するので、その熱をある程度放散させることが必要である。ＬＥＤの放熱は通常、ＬＥＤが接続された回路導体で行っている。このためＬＥＤが接続される丸電線やバスバーは、導体外径やバスバー幅を大きくして表面積を大きくすることで、放熱効果を高めるようにしている。しかし回路導体の放熱作用はＬＥＤの接続位置から１００mm程度の範囲でしか起こらないため、回路全長にわたって導体外径やバスバー幅を大きくすることは不経済である。またＬＥＤの接続位置付近だけ導体外径やバスバー幅を大きくして特殊形状にすることは製造コストがかさむという問題がある。突き刺し接続方式を採用すると、このような問題を回避できる。 It has also been found that when the LED leads are pierced into the flat cable and connected by the connection method as described above, the heat dissipation effect of the LED is improved. In general, an LED generates heat when turned on, and it is necessary to dissipate the heat to some extent. The heat radiation of the LED is usually performed by a circuit conductor to which the LED is connected. For this reason, the round electric wire and bus bar to which the LED is connected increase the surface area by increasing the conductor outer diameter and bus bar width, thereby enhancing the heat dissipation effect. However, since the heat radiation action of the circuit conductor occurs only in the range of about 100 mm from the connection position of the LED, it is uneconomical to increase the conductor outer diameter and bus bar width over the entire circuit length. In addition, there is a problem that the manufacturing cost increases if the conductor outer diameter and the bus bar width are increased only in the vicinity of the connection position of the LED to obtain a special shape. Adopting the piercing connection method can avoid such a problem.

図９は、ＬＥＤと回路導体を突き刺し接続方式で接続した場合と半田付け方式で接続した場合の、回路導体の各位置での温度上昇を測定した結果を示す。○印は厚さ０．１５mm、幅５．２mmの銅フラット導体を有するフラットケーブル（ＦＦＣ）にＬＥＤのリードを図２の突き刺し接続方式で接続した場合、△印は同じフラットケーブルにＬＥＤのリードを半田付けで接続した場合、＋印は厚さ０．５mm、幅５．２mmの銅バスバーにＬＥＤのリードを半田付けで接続した場合である。温度上昇の値は定格電流１５０ｍＡを流したときの平衡時の値である。 FIG. 9 shows the results of measuring the temperature rise at each position of the circuit conductor when the LED and the circuit conductor are pierced and connected by the connection method and when they are connected by the soldering method. ○ indicates that the LED lead is connected to the flat cable (FFC) having a copper flat conductor with a thickness of 0.15 mm and a width of 5.2 mm using the piercing connection method shown in FIG. When soldering is connected by soldering, the + mark indicates that the LED lead is connected by soldering to a copper bus bar having a thickness of 0.5 mm and a width of 5.2 mm. The value of the temperature rise is a value at equilibrium when a rated current of 150 mA is passed.

このグラフから明らかなように、同じフラットケーブルを用いた場合でも、接続子による突き刺し接続では半田付け接続に比べ低い温度上昇となっている。これは接続子が電気的接続機能のほかにヒートシンク的作用を発揮し、温度上昇を抑えているものと考えられる。またフラットケーブルは、導体断面積の大きいバスバーに比べ温度上昇が低く抑えられている。この現象はフラットケーブルの絶縁被覆が熱を溜めるのではなく、熱を伝導して、その多くを拡散放熱する作用をしているからと考えられる。この試験結果から、従来のバスバーにＬＥＤのリードを半田付け接続した構造よりも、フラットケーブルを回路導体としてＬＥＤのリードを突き刺し接続した構造の方が、放熱作用がよくなることが確認された。 As is apparent from this graph, even when the same flat cable is used, the piercing connection using the connector has a lower temperature rise than the soldering connection. This is thought to be due to the fact that the connector exerts a heat sink function in addition to the electrical connection function, thereby suppressing the temperature rise. Further, the flat cable has a lower temperature rise than a bus bar having a large conductor cross-sectional area. This phenomenon is thought to be because the insulating coating of the flat cable does not accumulate heat but conducts heat and diffuses and dissipates much of the heat. From this test result, it was confirmed that the heat dissipation action is better in the structure in which the lead of the LED is pierced and connected using a flat cable as a circuit conductor than in the structure in which the lead of the LED is soldered and connected to a conventional bus bar.

また、本発明のＬＥＤ接続回路構造体は、多数のＬＥＤ１２が接続されたフラットケーブル１０を折り曲げることで、多数のＬＥＤ１２を簡単に立体的に配置することができる。その一例を図１０に示す。１４はランプの湾曲したレンズ形状に合わせて階段状に形成された支持ベースである。多数のＬＥＤ１２が接続されたフラットケーブル１０を、この支持ベース１４の表面に沿うように立体的に折り曲げることにより、多数のＬＥＤ１２をレンズ形状に合わせて立体的に配置することができる。フラットケーブル１０は、支持ベース１４に固定爪１９を形成して、この固定爪１９により支持ベース１４に固定するとよい。 Moreover, the LED connection circuit structure of this invention can arrange | position many LED12 easily in three dimensions by bending the flat cable 10 with which many LED12 was connected. An example is shown in FIG. Reference numeral 14 denotes a support base formed in a step shape in accordance with the curved lens shape of the lamp. By bending the flat cable 10 to which a large number of LEDs 12 are connected three-dimensionally along the surface of the support base 14, the large number of LEDs 12 can be three-dimensionally arranged in accordance with the lens shape. The flat cable 10 may be fixed to the support base 14 by forming a fixing claw 19 on the support base 14.

〔関連技術Ｂ〕図１１は本発明に係るＬＥＤ接続回路構造体の他の関連技術を示す。この関連技術も３本のフラット導体１６Ａ〜１６Ｃを有するフラットケーブル１０を用いた場合である。両側のフラット導体１６Ａ、１６Ｃは制御回路３４を介して電源３２に接続され、中間のフラット導体１６Ｂには所要の間隔で切断部３６が形成されている。３個連続した切断部３６にはそれらを跨ぐように３個のＬＥＤ１２Ａ〜１２Ｃが接続され、ＬＥＤの直列回路が形成されている。ＬＥＤの直列回路は複数ユニット形成され、隣り合うＬＥＤ直列回路は、その間に残された１つの切断部３６で分断されている。各ＬＥＤ直列回路の一端側ではフラット導体１２Ａと１２Ｂが短絡部材３８で短絡され、他端側ではフラット導体１２Ｃと１２Ｂが短絡部材３８で短絡されている。これにより３個のＬＥＤ１２Ａ〜１２Ｃが直列に接続された直列回路が複数、並列に接続された直並列回路が構成されている。 [ Related Technology B ] FIG. 11 shows another related technology of the LED connection circuit structure according to the present invention. This related technique is also a case where the flat cable 10 having three flat conductors 16A to 16C is used. The flat conductors 16A and 16C on both sides are connected to the power source 32 via the control circuit 34, and cut portions 36 are formed at a required interval in the intermediate flat conductor 16B. Three LEDs 12 A to 12 C are connected to the three continuous cutting portions 36 so as to straddle them, and a series circuit of LEDs is formed. A plurality of LED series circuits are formed, and adjacent LED series circuits are divided by one cutting portion 36 left between them. The flat conductors 12A and 12B are short-circuited by the short-circuit member 38 at one end side of each LED series circuit, and the flat conductors 12C and 12B are short-circuited by the short-circuit member 38 at the other end side. As a result, a series-parallel circuit in which a plurality of series circuits in which the three LEDs 12A to 12C are connected in series is connected in parallel is configured.

短絡部材３８は、例えば図１２に示すように、板状導体の両端部を２本のフラット導体に沿う形に形成すると共に、その両端部に図３の接続子と同様な突き刺し片２６を形成したものである。このような短絡部材３８を用いると、両端部の突き刺し片２６をフラットケーブル１０の２本のフラット導体１６に突き刺して、フラットケーブル１０を貫通した突き刺し片２６の先端部を内側に曲成してかしめるだけで、簡単に２本のフラット導体の短絡部を形成することができる。
上記以外の構成は関連技術Ａと同じであるので、説明を省略する。 For example, as shown in FIG. 12, the short-circuit member 38 has both ends of a plate-like conductor formed along two flat conductors, and the piercing pieces 26 similar to the connector of FIG. 3 are formed at both ends. It is a thing. When such a short-circuit member 38 is used, the piercing pieces 26 at both ends are pierced into the two flat conductors 16 of the flat cable 10 and the tip portion of the piercing piece 26 penetrating the flat cable 10 is bent inward. By simply caulking, it is possible to easily form a short-circuit portion between two flat conductors.
Since the configuration other than the above is the same as that of the related art A , the description is omitted.

〔実施形態１〕図１３は本発明に係るＬＥＤ接続回路構造体の一実施形態を示す。この実施形態は４本のフラット導体１６Ａ〜１６Ｄを有するフラットケーブル１０を用いた場合である。外側２本のフラット導体１６Ａ、１６Ｄは制御回路３４を介して電源３２に接続され、内側２本のフラット導体１６Ｂ、１６Ｃには所要の間隔で互い違いに切断部３６が形成されている。切断部３６によって分断されたフラット導体１６Ｂ、１６Ｃ間には３個ずつのＬＥＤ１２Ａ〜１２Ｃがそれぞれ直列回路を構成するように接続されている。各ＬＥＤ直列回路の一端側ではフラット導体１２Ａと１２Ｂが短絡部材３８で短絡され、他端側ではフラット導体１２Ｄと１２Ｃが短絡部材３８で短絡されている。これにより３個のＬＥＤ１２Ａ〜１２Ｃが直列に接続された直列回路が複数、並列に接続された直並列回路が構成されている。短絡部材３８は関連技術Ｂで用いたものと同じである。
上記以外の構成は関連技術Ａと同じであるので、説明を省略する。 First Embodiment FIG. 13 shows an embodiment of an LED connection circuit structure according to the present invention. In this embodiment, a flat cable 10 having four flat conductors 16A to 16D is used. The outer two flat conductors 16A and 16D are connected to the power source 32 via the control circuit 34, and the inner two flat conductors 16B and 16C are alternately formed with cut portions 36 at a required interval. Between the flat conductors 16B and 16C divided by the cutting portion 36, three LEDs 12A to 12C are connected to form a series circuit. The flat conductors 12A and 12B are short-circuited by the short-circuit member 38 on one end side of each LED series circuit, and the flat conductors 12D and 12C are short-circuited by the short-circuit member 38 on the other end side. As a result, a series-parallel circuit in which a plurality of series circuits in which the three LEDs 12A to 12C are connected in series is connected in parallel is configured. The short-circuit member 38 is the same as that used in the related art B.
Since the configuration other than the above is the same as that of the related art A , the description is omitted.

〔実施形態２〕図１４は本発明に係るＬＥＤ接続回路構造体の他の実施形態を示す。この実施形態も４本のフラット導体１６Ａ〜１６Ｄを有するフラットケーブル１０を用いた場合である。外側２本のフラット導体１６Ａ、１６Ｄは制御回路３４を介して電源３２に接続され、内側２本のフラット導体１６Ｂ、１６Ｃには所要の間隔で長手方向の同じ位置に切断部３６が形成されている。切断部３６で分断されたフラット導体１６Ｂ、１６Ｃの単位長さ毎に、フラット導体１２Ａ、１２Ｂ間にＬＥＤ１２Ａが、フラット導体１２Ｂ、１２Ｃ間にＬＥＤ１２Ｂが、フラットケーブル１２Ｃ、１２Ｄ間にＬＥＤ１２Ｃが接続されている。これにより３個のＬＥＤ１２Ａ〜１２Ｃが直列に接続された直列回路が複数、並列に接続された直並列回路が構成されている。
上記以外の構成は関連技術Ａと同じであるので、説明を省略する。 Embodiment 2 FIG. 14 shows another embodiment of the LED connection circuit structure according to the present invention. This embodiment is also a case where a flat cable 10 having four flat conductors 16A to 16D is used. The outer two flat conductors 16A and 16D are connected to the power source 32 via the control circuit 34, and the inner two flat conductors 16B and 16C have cut portions 36 formed at the same positions in the longitudinal direction at a required interval. Yes. For each unit length of the flat conductors 16B and 16C divided by the cutting portion 36, the LED 12A is connected between the flat conductors 12A and 12B, the LED 12B is connected between the flat conductors 12B and 12C, and the LED 12C is connected between the flat cables 12C and 12D. ing. As a result, a series-parallel circuit in which a plurality of series circuits in which the three LEDs 12A to 12C are connected in series is connected in parallel is configured.
Since the configuration other than the above is the same as that of the related art A , the description is omitted.

〔関連技術１〕図１５（Ａ）、（Ｂ）は本発明に係るＬＥＤ接続回路構造体の関連技術を示す。この関連技術は２本のフラット導体１６Ａ、１６Ｂを有するフラットケーブル１０を用いた場合である。この関連技術では、フラットケーブル１０の長手方向の２箇所（３箇所以上でもよい）に、一方のフラット導体が切断され、他方のフラット導体が切断されない片方切断部Ｋを、２本のフラット導体１６Ａ、１６Ｂが交互に切断されるように設ける。３６はフラット導体１６Ａ、１６Ｂの切断部である。そして前記片方切断部Ｋで長手方向に区分されたフラットケーブル１０の、各区間内の２本のフラット導体１６Ａ、１６Ｂ間にそれぞれ３個のＬＥＤ１２Ａ〜１２Ｃを接続する。これにより同図（Ｃ）のように、３個のＬＥＤ１２Ａ〜１２Ｃを並列に接続した並列回路が複数、直列に接続された並直列回路が構成されている。 [ Related Technology 1 ] FIGS. 15A and 15B show related technology of the LED connection circuit structure according to the present invention. This related technique is a case where a flat cable 10 having two flat conductors 16A and 16B is used. In this related technique , one flat conductor is cut at two locations in the longitudinal direction of the flat cable 10 (or three or more locations), and the other flat conductor is not cut. 16B are cut alternately. Reference numeral 36 denotes a cut portion of the flat conductors 16A and 16B. Then, three LEDs 12A to 12C are connected between the two flat conductors 16A and 16B in each section of the flat cable 10 divided in the longitudinal direction by the one-side cut portion K, respectively. As a result, as shown in FIG. 6C, a parallel series circuit in which a plurality of parallel circuits in which the three LEDs 12A to 12C are connected in parallel is connected in series is configured.

上記以外の構成は関連技術Ａと同じであるので、説明を省略する。この関連技術はフラットケーブルのフラット導体が２本で済むので、３本以上のフラット導体を有するフラットケーブルを使用する場合に比べ、省スペース、コスト低減を図ることができる。 Since the configuration other than the above is the same as that of the related art A , the description is omitted. Since this related technique requires only two flat conductors for the flat cable, space saving and cost reduction can be achieved as compared to the case of using a flat cable having three or more flat conductors.

〔関連技術２〕図１６（Ａ）、（Ｂ）は本発明に係るＬＥＤ接続回路構造体の他の関連技術を示す。この関連技術も２本のフラット導体１６Ａ、１６Ｂを有するフラットケーブル１０を用いた場合である。この関連技術では、フラットケーブル１０の長手方向の２箇所に、２本のフラット導体１６Ａ、１６Ｂを短絡部材３８で短絡した短絡部Ｔを設ける。そしてこの短絡部Ｔで挟まれた区間内の２本のフラット導体１６Ａ、１６Ｂと、前記区間外の一方のフラット導体１６Ｂに、フラット導体切断部３６を３箇所ずつ設けて、各切断部３６に跨るようにＬＥＤ１２Ａ〜１２Ｃを接続する。さらに２区間にＬＥＤ１２Ａ〜１２Ｃを接続したフラット導体１６Ｂの両端を電線４４で短絡する。これにより、同図（Ｃ）のように、３個のＬＥＤ１２Ａ〜１２Ｃを直列に接続した直列回路が複数、並列に接続された直並列回路が構成されている。なお短絡部材３８としては図１２に示したものを用いるとよい。また電線４４とフラット導体１６Ｂを接続する接続部材４６としては、電線１４の圧着部の一端側に、図１２のようなフラット導体１６Ｂへの突き刺し片２６を一体に形成した端子を用いるとよい。 [ Related Art 2 ] FIGS. 16A and 16B show another related art of the LED connection circuit structure according to the present invention. This related technique is also a case where the flat cable 10 having two flat conductors 16A and 16B is used. In this related technology , a short-circuit portion T in which two flat conductors 16 A and 16 B are short-circuited by a short-circuit member 38 is provided at two locations in the longitudinal direction of the flat cable 10. Then, three flat conductor cutting portions 36 are provided in each of the two flat conductors 16A and 16B in the section sandwiched between the short-circuit portions T and one flat conductor 16B outside the section, LED12A-12C is connected so that it may straddle. Furthermore, both ends of the flat conductor 16 B in which the LEDs 12 A to 12 C are connected in two sections are short-circuited by the electric wires 44. As a result, as shown in FIG. 5C, a series-parallel circuit in which a plurality of series circuits in which the three LEDs 12A to 12C are connected in series is connected in parallel is configured. As the short-circuit member 38, the one shown in FIG. Further, as the connection member 46 for connecting the electric wire 44 and the flat conductor 16B, it is preferable to use a terminal integrally formed with a piercing piece 26 for the flat conductor 16B as shown in FIG.

上記以外の構成は実施形態１と同じであるので、説明を省略する。このような関連技術でも関連技術１と同様の効果が得られる。なお、この関連技術では電線４４を用いているが、フラットケーブル１０を図１０のように折り曲げて立体的に配線する場合は、フラットケーブル１０の両端の距離はフラットケーブル１０の長さより格段に短くなるので、電線４４の長さはフラットケーブル１０よりもかなり短くてよい。 Since the configuration other than the above is the same as that of the first embodiment, the description thereof is omitted. Such a related technique can also achieve the same effect as related technique 1 . In this related technique , the electric wire 44 is used. However, when the flat cable 10 is bent and three-dimensionally wired as shown in FIG. 10, the distance between both ends of the flat cable 10 is much shorter than the length of the flat cable 10. Therefore, the length of the electric wire 44 may be considerably shorter than that of the flat cable 10.

〔関連技術３〕図１７は本発明のさらに他の関連技術を示す。この関連技術は、ＬＥＤ１２のリード２０に、フラットケーブル１０のフラット導体１６よりも幅の広い放熱板部４０を一体に形成したものである。このような放熱板部４０付きのリード２０は、リード用金属板として、フラット導体よりも幅の広い金属板を使用し、その一部に切り込み４２を入れて、フラット導体１６よりも幅の狭いリード２０を形成することで、簡単に形成できる。リード２０は図２と同様に接続子２２によりフラット導体１６に接続されている。このようなリード２０に放熱板部４０を設けたＬＥＤ１２を使用すると、放熱のためにフラット導体の幅を広くすることなく、ＬＥＤの放熱効果を高めることができる。 [Related Art 3] FIG. 17 shows still another related technique of the present invention. In this related technique, a heat radiating plate 40 having a width wider than that of the flat conductor 16 of the flat cable 10 is integrally formed on the lead 20 of the LED 12. Such a lead 20 with the heat radiating plate portion 40 uses a metal plate having a width wider than that of the flat conductor as a lead metal plate, and a notch 42 is formed in a part thereof to make the width narrower than that of the flat conductor 16. By forming the lead 20, it can be formed easily. The lead 20 is connected to the flat conductor 16 by a connector 22 as in FIG. When the LED 12 in which the heat radiating plate portion 40 is provided on such a lead 20 is used, the heat radiation effect of the LED can be enhanced without increasing the width of the flat conductor for heat radiation.

なお、フラットケーブル１０に切断部を設けたり、短絡部を設けたりして、ＬＥＤの直並列回路を構成することは、前記関連技術Ａ、Ｂ、実施形態１、２と同じである。 In addition, it is the same as the said related art A and B and Embodiment 1 , 2 that a flat cable 10 is provided with a cutting part or a short circuit part, and comprises the series-parallel circuit of LED.

本発明に係るＬＥＤ接続回路構造体の関連技術を示す、（Ａ）は平面図、（Ｂ）は底面図、（Ｃ）は接続回路図。The related art of the LED connection circuit structure which concerns on this invention is shown, (A) is a top view, (B) is a bottom view, (C) is a connection circuit diagram. 本発明のＬＥＤ接続回路構造体に使用する、フラットケーブルとＬＥＤの接続構造の一例を示す、（Ａ）は平面図、（Ｂ）は正面図、（Ｃ）は底面図、（Ｄ）は（Ｂ）のＤ−Ｄ線拡大断面図。An example of the connection structure of a flat cable and LED used for the LED connection circuit structure of the present invention is shown, (A) is a plan view, (B) is a front view, (C) is a bottom view, and (D) is ( The DD sectional expanded sectional view of B). 図２の接続構造に使用する突き刺し型接続子を示す、（Ａ）は正面図、（Ｂ）は側面図。The stab type | mold connector used for the connection structure of FIG. 2 is shown, (A) is a front view, (B) is a side view. 本発明の関連技術に使用する、フラットケーブルとＬＥＤの接続構造の一例を示す、（Ａ）は平面図、（Ｂ）は正面図、（Ｃ）は底面図、（Ｄ）は（Ｂ）のＤ−Ｄ線拡大断面図。 An example of the connection structure of a flat cable and LED used for the related art of the present invention is shown, (A) is a plan view, (B) is a front view, (C) is a bottom view, and (D) is (B). DD line expanded sectional view. 図４の接続構造に使用するＬＥＤを示す、（Ａ）は平面図、（Ｂ）は正面図、（Ｃ）は（Ｂ）のＣ−Ｃ線矢視図。The LED used for the connection structure of FIG. 4 is shown, (A) is a plan view, (B) is a front view, and (C) is a CC line arrow view of (B). 本発明のＬＥＤ接続回路構造体に使用する、フラットケーブルとＬＥＤの接続構造の他の例を示す、（Ａ）は平面図、（Ｂ）は正面図、（Ｃ）は底面図、（Ｄ）は（Ｂ）のＤ−Ｄ線拡大断面図。The other example of the connection structure of a flat cable and LED used for the LED connection circuit structure of this invention is shown, (A) is a top view, (B) is a front view, (C) is a bottom view, (D) (D) The DD sectional view taken on the line of (B). 図６の接続構造に使用する受け板を示す斜視図。The perspective view which shows the receiving plate used for the connection structure of FIG. 本発明の関連技術に使用する、フラットケーブルとＬＥＤの接続構造の他の例を示す、（Ａ）は平面図、（Ｂ）は正面図、（Ｃ）は底面図、（Ｄ）は（Ｂ）のＤ−Ｄ線拡大断面図。The other example of the connection structure of a flat cable and LED used for the related technique of this invention is shown, (A) is a top view, (B) is a front view, (C) is a bottom view, (D) is (B The DD line expanded sectional view of). ＬＥＤと回路導体を突き刺し接続方式で接続した場合と半田付け方式で接続した場合の、回路導体の各位置での温度上昇を測定した結果を示すグラフ。The graph which shows the result of having measured the temperature rise in each position of a circuit conductor when the LED and the circuit conductor are pierced and connected by a connection method and when connected by a soldering method. 本発明のＬＥＤ接続回路構造体を用いて構成される立体型発光構造体の一例を示す斜視図。The perspective view which shows an example of the three-dimensional light-emitting structure comprised using the LED connection circuit structure of this invention. 本発明に係るＬＥＤ接続回路構造体の他の関連技術を示す、（Ａ）は平面図、（Ｂ）は底面図、（Ｃ）は接続回路図。The other related technology of the LED connection circuit structure which concerns on this invention is shown, (A) is a top view, (B) is a bottom view, (C) is a connection circuit diagram. 図１１でフラット導体間を短絡するのに用いた短絡部材を示す、（Ａ）は平面図、（Ｂ）は正面図、（Ｃ）は側面図。FIG. 11 shows a short-circuit member used for short-circuiting between flat conductors in FIG. 11, (A) is a plan view, (B) is a front view, and (C) is a side view. 本発明に係るＬＥＤ接続回路構造体の一実施形態を示す、（Ａ）は平面図、（Ｂ）は底面図、（Ｃ）は接続回路図。BRIEF DESCRIPTION OF THE DRAWINGS One Embodiment of the LED connection circuit structure which concerns on this invention is shown, (A) is a top view, (B) is a bottom view, (C) is a connection circuit diagram. 同じく他の実施形態を示す、（Ａ）は平面図、（Ｂ）は底面図、（Ｃ）は接続回路図。The same Ku shows another embodiment, (A) is a plan view, (B) is a bottom view, (C) is connected circuit diagram. 本発明の関連技術の他の例を示す、（Ａ）は平面図、（Ｂ）は底面図、（Ｃ）は接続回路図。The other example of the related technology of this invention is shown, (A) is a top view, (B) is a bottom view, (C) is a connection circuit diagram. 本発明の関連技術のさらに他の例を示す、（Ａ）は平面図、（Ｂ）は底面図、（Ｃ）は接続回路図。FIG. 5A is a plan view, FIG. 5B is a bottom view, and FIG. 5C is a connection circuit diagram showing still another example of the related technology of the present invention. 本発明の関連技術に使用するＬＥＤを示す平面図。The top view which shows LED used for the related technique of this invention.

Explanation of symbols

１０：フラットケーブル
１２：ＬＥＤ
１４：支持ベース
１６：フラット導体
１８：絶縁被覆
２０：リード
２２：突き刺し型接続子
２４：背板部
２６：突き刺し片
２８：受け板
３０：スロット
３２：電源
３４：制御回路
３６：切断部
３８：短絡部材
Ｋ：片方切断部
Ｔ：短絡部
10: Flat cable 12: LED
14: support base 16: flat conductor 18: insulation coating 20: lead 22: piercing connector 24: back plate portion 26: piercing piece 28: receiving plate 30: slot 32: power supply 34: control circuit 36: cutting portion 38: Short-circuit member K: One-side cut portion T: Short-circuit portion

Claims

As a wiring material for connecting a large number of LEDs, a flat cable formed by applying a collective insulation coating to four or more flat conductors arranged in parallel is used.
The flat conductor of the flat cable is provided with a cut portion of the flat conductor at a required portion of the flat conductor other than the two flat conductors connected to the power source, and the LED is connected between the flat conductors provided with the cut portion, By providing a short circuit portion between the flat conductor provided with the cut portion and the flat conductor not provided with the cut portion, a plurality of series circuits in which a plurality of LEDs are connected in series constitute a series-parallel circuit connected in parallel,
The connection part between the LED lead and the flat conductor of the flat cable is arranged such that the LED lead is disposed at a position where the flat conductor of the flat cable is located, and the piercing piece of the piercing-type connector straddling the LED lead is the flat conductor of the flat cable. It is formed by piercing at a certain position and bending and caulking the tip of the piercing piece penetrating the flat cable.
The LED connection circuit structure characterized by the above-mentioned.

As a wiring material for connecting a large number of LEDs, a flat cable formed by applying a collective insulation coating to four or more flat conductors arranged in parallel is used.
The flat conductor of the flat cable is provided with a cut portion of the flat conductor at a required portion of the flat conductor other than the two flat conductors connected to the power source, and the LED is connected between the flat conductors provided with the cut portion, By providing a short circuit portion between the flat conductor provided with the cut portion and the flat conductor not provided with the cut portion, a plurality of series circuits in which a plurality of LEDs are connected in series constitute a series-parallel circuit connected in parallel,
The connection part between the LED lead and the flat conductor of the flat cable is arranged such that the LED lead is disposed at a position where the flat conductor of the flat cable is located, and the piercing piece of the piercing-type connector straddling the LED lead is the flat conductor of the flat cable. Is formed by inserting the tip of the piercing piece penetrating the flat cable into the slot of the receiving plate arranged on the back side of the flat cable,
The LED connection circuit structure characterized by the above-mentioned.

As a wiring material for connecting a large number of LEDs, a flat cable formed by applying a collective insulation coating to four or more flat conductors arranged in parallel is used.
Of the flat conductors of the flat cable, cut portions of the flat conductors are provided at required portions of the flat conductors other than the two flat conductors connected to the power source, and the cut conductors are provided between the flat conductors provided with the cut portions. By connecting the LED between the flat conductor and the flat conductor not provided with a cut portion, a plurality of series circuits in which a plurality of LEDs are connected in series constitutes a series-parallel circuit in which the LEDs are connected in parallel.
The connection part between the LED lead and the flat conductor of the flat cable is arranged such that the LED lead is disposed at a position where the flat conductor of the flat cable is located, and the piercing piece of the piercing-type connector straddling the LED lead is the flat conductor of the flat cable. It is formed by piercing at a certain position and bending and caulking the tip of the piercing piece penetrating the flat cable.
The LED connection circuit structure characterized by the above-mentioned.

As a wiring material for connecting a large number of LEDs, a flat cable formed by applying a collective insulation coating to four or more flat conductors arranged in parallel is used.
Of the flat conductors of the flat cable, cut portions of the flat conductors are provided at required portions of the flat conductors other than the two flat conductors connected to the power source, and the cut conductors are provided between the flat conductors provided with the cut portions. By connecting the LED between the flat conductor and the flat conductor not provided with a cut portion, a plurality of series circuits in which a plurality of LEDs are connected in series constitutes a series-parallel circuit in which the LEDs are connected in parallel.
The connection part between the LED lead and the flat conductor of the flat cable is arranged such that the LED lead is disposed at a position where the flat conductor of the flat cable is located, and the piercing piece of the piercing-type connector straddling the LED lead is the flat conductor of the flat cable. Is formed by inserting the tip of the piercing piece penetrating the flat cable into the slot of the receiving plate arranged on the back side of the flat cable,
The LED connection circuit structure characterized by the above-mentioned.