JP5851869B2

JP5851869B2 - Electrical junction box

Info

Publication number: JP5851869B2
Application number: JP2012024093A
Authority: JP
Inventors: 幸寛川村; 和田　正弘; 正弘和田
Original assignee: Yazaki Corp
Current assignee: Yazaki Corp
Priority date: 2011-07-13
Filing date: 2012-02-07
Publication date: 2016-02-03
Anticipated expiration: 2032-02-07
Also published as: JP2013039019A

Description

本発明は、自動車のエンジンルーム等に取り付けられる電気接続箱に関するものである。 The present invention relates to an electrical junction box attached to an engine room or the like of an automobile.

自動車には、多種多様な電子機器が搭載されている。これら多種多様な電子機器に電力供給及び信号伝達を行うために、前記自動車には、電源と前記電子機器との間の適宜箇所に、コネクタ、リレー、ヒューズ等の電気部品が集約されて構成された電気接続箱が配置されている。 A wide variety of electronic devices are mounted on automobiles. In order to perform power supply and signal transmission to these various electronic devices, the automobile is configured by integrating electrical components such as connectors, relays, and fuses at appropriate locations between the power source and the electronic devices. An electrical junction box is arranged.

図１１は、従来の電気接続箱を構成するリレー及びカセットブロックを示す斜視図である。図１２は、図１１に示されたリレー及びカセットブロックを分解して示す斜視図である。図１３は、図１２中のＩＶ−ＩＶ線に沿う断面図である。 FIG. 11 is a perspective view showing a relay and a cassette block constituting a conventional electrical junction box. FIG. 12 is an exploded perspective view showing the relay and cassette block shown in FIG. 13 is a cross-sectional view taken along line IV-IV in FIG.

図１１、図１２に示すように従来のリレー１０２は、リレー本体１２１と、前記リレー本体１２１から突出した複数のリレー端子１２６と、を備えている。リレー端子１２６には従来の相手方端子１０３が接続される。同図に示された、従来のカセットブロック１０４には、リレー端子１２６及び相手方端子１０３が収容される複数の収容室１４０と、各収容室１４０に相手方端子１０３を取り付ける複数のランス１０５と、が設けられている。図１１〜図１３中の矢印Ｙは、リレー端子１２６がカセットブロック１０４の収容室１４０に挿入される方向を示している。また、図１２では複数の相手方端子１０３のうち１つのみ示し、他の相手方端子１０３は省略されている。 As shown in FIGS. 11 and 12, the conventional relay 102 includes a relay main body 121 and a plurality of relay terminals 126 protruding from the relay main body 121. A conventional counterpart terminal 103 is connected to the relay terminal 126. The conventional cassette block 104 shown in the figure includes a plurality of storage chambers 140 in which the relay terminals 126 and the counterpart terminals 103 are accommodated, and a plurality of lances 105 in which the counterpart terminals 103 are attached to the respective accommodation chambers 140. Is provided. An arrow Y in FIGS. 11 to 13 indicates a direction in which the relay terminal 126 is inserted into the accommodation chamber 140 of the cassette block 104. In FIG. 12, only one of the plurality of counterpart terminals 103 is shown, and the other counterpart terminals 103 are omitted.

上記相手方端子１０３は、図１２に示すように、リレー端子１２６に接続される電気接触部１３１と、電気接触部１３１に連なり、図示しない電線に接続される電線接続部１３２と、を備えている。上記電気接触部１３１は、板状の基板部１３３と、リレー端子１２６に弾性的に接触される一対のばね片１３４と、を備えている。上記一対のばね片１３４は、基板部１３３の幅方向の両縁から立設し、先端が基板部１３３に近付くように折り曲げられている。 As shown in FIG. 12, the counterpart terminal 103 includes an electrical contact portion 131 connected to the relay terminal 126, and a wire connection portion 132 connected to the electrical contact portion 131 that is connected to the electrical contact portion 131. . The electrical contact portion 131 includes a plate-shaped substrate portion 133 and a pair of spring pieces 134 that are elastically contacted with the relay terminal 126. The pair of spring pieces 134 are erected from both edges in the width direction of the substrate portion 133, and are bent so that the tips approach the substrate portion 133.

上記ランス１０５は、図１３に示すように、収容室１４０の内面に連なり矢印Ｙ方向の上方に延びたアーム１０６と、前記アーム１０６の自由端に設けられ、ばね片１３４の電線接続部１３２側の肩１３４ａに係止する係止凸部１０７と、を備えている。また、ランス１０５は撓み易くするために薄く形成されている。 As shown in FIG. 13, the lance 105 is connected to the inner surface of the housing chamber 140 and extends upward in the direction of the arrow Y, and is provided at the free end of the arm 106. And a locking projection 107 for locking to the shoulder 134a. Further, the lance 105 is formed thin to facilitate bending.

従来のリレー端子１２６と相手方端子１０３とカセットブロック１０４とを組み立てる手順を説明する。まず、相手方端子１０３の電気接触部１３１側を収容室１４０に近付けて、図中の下方の開口から矢印Ｙに沿って収容室１４０内に差し込み、ばね片１３４をランス１０５に係止させて、相手方端子１０３を各収容室１４０に取り付ける。次に、リレー１０２の各端子１２６それぞれを、図中の上方の開口から矢印Ｙに沿って収容室に挿入し、各相手方端子１０３に弾性的に接触させる。こうして組み立てる（例えば、特許文献１、特許文献２を参照）。 A procedure for assembling the conventional relay terminal 126, counterpart terminal 103, and cassette block 104 will be described. First, the electrical contact portion 131 side of the counterpart terminal 103 is brought close to the storage chamber 140, inserted into the storage chamber 140 from the lower opening in the figure along the arrow Y, and the spring piece 134 is locked to the lance 105, The counterpart terminal 103 is attached to each storage chamber 140. Next, each terminal 126 of the relay 102 is inserted into the accommodation chamber along the arrow Y from the upper opening in the figure, and is brought into elastic contact with each counterpart terminal 103. Assemble in this way (see, for example, Patent Document 1 and Patent Document 2).

特開２００２−３５４６３１号公報Japanese Patent Laid-Open No. 2002-354331 特開２００５−５６７９９号公報JP 2005-56799 A

しかしながら、上述した従来のリレー１０２、相手方端子１０３及びカセットブロック１０４を備えた電気接続箱１０１には以下に示す問題点があった、即ち、エンジンルーム内の高温環境に耐え得る変形し難い耐熱性を有するとともに、相手方端子１０３に接続された電線が引っ張られた際においても相手方端子１０３を収容室１４０内に保持する機械的強度を有するランス１０５を形成するためには高価な樹脂を用いる必要があるので、コストが高くなるという問題があった。また、リレー端子１２６は、収容室１４０の内面と相手方端子１０３のばね片１３４との間に差し込まれて、ばね片１３４に弾性的に接触されることで相手方端子１０３と電気的に接続されているので、自動車の走行中の振動などによってこれらリレー端子１２６と相手方端子１０３とが離れてしまい、リレー端子１２６と相手方端子１０３との電気的な接続が断たれてしまう虞れがあるという問題があった。また、相手方端子１０３の脱落を防止するために、リレー端子１２６と相手方端子１０３との接圧を高くする必要があるので、リレー端子１２６を各収容室１４０に挿入する際の挿入力が大きくなるという問題があった。 However, the electrical junction box 101 provided with the above-described conventional relay 102, counterpart terminal 103, and cassette block 104 has the following problems, that is, heat resistance that is difficult to deform and can withstand the high temperature environment in the engine room. In addition, it is necessary to use an expensive resin in order to form the lance 105 having mechanical strength that holds the counterpart terminal 103 in the housing chamber 140 even when the electric wire connected to the counterpart terminal 103 is pulled. There was a problem that the cost would be high. The relay terminal 126 is inserted between the inner surface of the accommodation chamber 140 and the spring piece 134 of the counterpart terminal 103 and is electrically connected to the counterpart terminal 103 by being elastically contacted with the spring piece 134. Therefore, there is a problem that the relay terminal 126 and the counterpart terminal 103 are separated from each other due to vibrations during traveling of the automobile, and the electrical connection between the relay terminal 126 and the counterpart terminal 103 may be disconnected. there were. Further, since it is necessary to increase the contact pressure between the relay terminal 126 and the counterpart terminal 103 in order to prevent the counterpart terminal 103 from falling off, the insertion force when the relay terminal 126 is inserted into each accommodation chamber 140 is increased. There was a problem.

本発明は、上記課題に係る問題を解決することを目的としている。即ち、本発明は、安価な樹脂を用いることによりコストの低減を図ることができる電気接続箱を提供することを目的とする。 The present invention aims to solve the above problems. That is, an object of the present invention is to provide an electrical junction box that can reduce the cost by using an inexpensive resin.

請求項１記載の本発明は、部品本体と、前記部品本体から突出した板状の端子と、を有する電気部品と、前記端子に接続される相手方端子と、互いに接続される前記端子と前記相手方端子とが収容される接続箱本体と、を備えた電気接続箱において、前記端子には第１係止部が設けられ、前記相手方端子には前記第１係止部に係止する第１係止受け部が設けられ、前記第１係止受け部が前記第１係止部に係止することにより、前記相手方端子が前記端子に取り付けられ、前記第１係止部が、前記端子に設けられた貫通孔であり、前記相手方端子が、前記端子が挿入される筒状部と、前記筒状部の内側に設けられ、前記筒状部に挿入された前記端子を前記筒状部の一つの壁に向かって付勢するばね片と、を備え、前記ばね片には前記一つの壁に向かって突出した前記第１係止受け部が設けられ、互いに重ねられた前記第１係止部及び、前記一つの壁に設けられた貫通孔に前記第１係止受け部が係止することを特徴とする電気接続箱である。 The present invention according to claim 1 is an electrical component having a component main body, a plate-like terminal protruding from the component main body, a counterpart terminal connected to the terminal, the terminal connected to each other, and the counterpart A connection box main body for accommodating a terminal, wherein the terminal is provided with a first locking portion, and the counterpart terminal is locked with the first locking portion. A stop receiving portion is provided, and when the first locking receiving portion is locked to the first locking portion, the counterpart terminal is attached to the terminal, and the first locking portion is provided to the terminal. The counterpart terminal is provided inside the cylindrical portion, and the terminal inserted into the cylindrical portion is connected to one of the cylindrical portions. A spring piece biasing toward one wall, and the spring piece includes the one piece on the one wall. The first locking receiving portion projecting toward the first locking portion is provided, and the first locking receiving portion is locked to the first locking portion and the through hole provided in the one wall. An electrical junction box characterized by

請求項２記載の本発明は、請求項１記載の本発明において、前記部品本体には第２係止部が設けられ、前記接続箱本体には、前記第２係止部に係止する第２係止受け部が設けられ、前記第２係止部が前記第２係止受け部に係止することにより、前記電気部品が前記接続箱本体に取り付けられることを特徴としている。 According to a second aspect of the present invention, in the first aspect of the present invention, the component main body is provided with a second locking portion, and the connection box main body is locked with the second locking portion. In this case, the electrical component is attached to the junction box body when the second latching portion is latched to the second latching receiving portion.

請求項３記載の本発明は、請求項２記載の本発明において、前記接続箱本体には前記部品本体を包囲する周壁が設けられており、前記部品本体の前記第２係止部が、前記部品本体の外面に設けられた突起であり、前記接続箱本体の前記第２係止受け部が、前記周壁の内面に設けられた凹部又は前記周壁に設けられた貫通孔であり、前記周壁には、前記電気部品の前記接続箱本体への挿入方向に延び、前記周壁の縁を切り欠いた一対のスリットが前記凹部又は貫通孔の両側に設けられていることを特徴としている。 According to a third aspect of the present invention, in the second aspect of the present invention, the connection box main body is provided with a peripheral wall surrounding the component main body, and the second locking portion of the component main body includes the second locking portion. A protrusion provided on the outer surface of the component main body, and the second locking receiving portion of the junction box main body is a recess provided in the inner surface of the peripheral wall or a through hole provided in the peripheral wall, Is characterized in that a pair of slits extending in the direction of insertion of the electrical component into the junction box body and notching the edge of the peripheral wall are provided on both sides of the recess or the through hole.

請求項４記載の本発明は、請求項１乃至請求項３のうちいずれか一項記載の本発明において、前記第１係止部は、前記端子に設けられた貫通孔で構成され、前記相手方端子が、前記端子が挿入される筒状部と、前記筒状部の内側に設けられ、前記筒状部に挿入された前記端子を前記筒状部の一つの壁に向かって付勢するばね片と、を備え、前記筒状部には、当該筒状部の内側方向に突出して、前記第１係止部に係止する前記第１係止受け部が設けられていることを特徴としている。 According to a fourth aspect of the present invention, in the first aspect of the present invention according to any one of the first to third aspects, the first locking portion is configured by a through hole provided in the terminal, and the counterpart A terminal is provided with a cylindrical portion into which the terminal is inserted, and a spring provided inside the cylindrical portion and biases the terminal inserted into the cylindrical portion toward one wall of the cylindrical portion. The cylindrical portion is provided with the first locking receiving portion that protrudes inwardly of the cylindrical portion and is locked to the first locking portion. Yes.

請求項５記載の本発明は、請求項４記載の本発明において、前記第１係止受け部は、前記筒状部の前記一つの壁から切り起こされ、当該一つの壁から内側方向に突出して形成されていることを特徴とする。 According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the first locking receiving portion is cut and raised from the one wall of the cylindrical portion and protrudes inward from the one wall. It is characterized by being formed.

請求項１に記載の本発明によれば、部品本体と、前記部品本体から突出した板状の端子と、を有する電気部品と、前記端子に接続される相手方端子と、互いに接続される前記端子と前記相手方端子とが収容される接続箱本体と、を備えた電気接続箱において、前記端子には第１係止部が設けられ、前記相手方端子には前記第１係止部に係止する第１係止受け部が設けられ、前記第１係止受け部が前記第１係止部に係止することにより、前記相手方端子が前記端子に取り付けられるので、第１係止受け部が第１係止部に係止することにより、相手方端子が接続箱本体内に保持されることとなり、よって、従来のランスを廃止することができ、接続箱本体を構成する材料を安価な樹脂に変更できるのでコストの低減を図ることができる。また、自動車が走行中に振動した際においても、電気部品の端子と該端子に接続される相手方端子との電気的接続の信頼性を確保することができる。また、端子と相手方端子との接圧を従来品よりも低くすることができ、端子を各収容室に挿入する際の挿入力を小さくすることができて、組付け作業性の向上を図ることができる。また、前記第１係止部が、前記端子に設けられた貫通孔であり、前記相手方端子が、前記端子が挿入される筒状部と、前記筒状部の内側に設けられ、前記筒状部に挿入された前記端子を前記筒状部の一つの壁に向かって付勢するばね片と、を備え、前記ばね片には前記一つの壁に向かって突出した前記第１係止受け部が設けられ、互いに重ねられた前記第１係止部及び、前記一つの壁に設けられた貫通孔に前記第１係止受け部が係止するので、端子を相手方端子の筒状部内に挿入する容易な作業で、相手方端子を端子に取り付けることができる。 According to this invention of Claim 1, the electrical component which has a component main body, the plate-shaped terminal protruded from the said component main body, the other party terminal connected to the said terminal, and the said terminal connected mutually And a junction box body in which the mating terminal is accommodated, wherein the terminal is provided with a first locking portion, and the mating terminal is latched to the first locking portion. A first locking receiving portion is provided, and the first locking receiving portion is locked to the first locking portion, whereby the counterpart terminal is attached to the terminal. By locking to one locking part, the counterpart terminal is held in the junction box body, so the conventional lance can be abolished and the material constituting the junction box body is changed to an inexpensive resin Therefore, the cost can be reduced. Further, even when the automobile vibrates while traveling, it is possible to ensure the reliability of electrical connection between the terminal of the electrical component and the counterpart terminal connected to the terminal. In addition, the contact pressure between the terminal and the counterpart terminal can be made lower than that of the conventional product, and the insertion force when inserting the terminal into each storage chamber can be reduced, thereby improving the assembly workability. Can do. Further, the first locking portion is a through hole provided in the terminal, and the counterpart terminal is provided inside the cylindrical portion into which the terminal is inserted, and the cylindrical shape. A spring piece for urging the terminal inserted into the wall portion toward one wall of the tubular portion, and the spring piece protrudes toward the one wall. Since the first locking receiving portion is locked to the first locking portion and the through hole provided in the one wall, the terminal is inserted into the cylindrical portion of the counterpart terminal. The other terminal can be attached to the terminal with an easy operation.

請求項２に記載の本発明によれば、前記部品本体には第２係止部が設けられ、前記接続箱本体には、前記第２係止部に係止する第２係止受け部が設けられ、前記第２係止部が前記第２係止受け部に係止することにより、前記電気部品が前記接続箱本体に取り付けられるので、電気部品が接続箱本体から脱落するのを確実に防止できる。 According to this invention of Claim 2, the said 2nd latching | locking part is provided in the said component main body, and the 2nd latching receiving part latched to the said 2nd latching | locking part is provided in the said connection box main body. Since the electrical component is attached to the junction box body by being provided and the second latching portion is latched to the second latch receiving portion, it is ensured that the electrical component is dropped from the junction box body. Can be prevented.

請求項３に記載の本発明によれば、前記接続箱本体には前記部品本体を包囲する周壁が設けられており、前記部品本体の前記第２係止部が、前記部品本体の外面に設けられた突起であり、前記接続箱本体の前記第２係止受け部が、前記周壁の内面に設けられた凹部又は前記周壁に設けられた貫通孔であり、前記周壁には、前記電気部品の前記接続箱本体への挿入方向に延び、前記周壁の縁を切り欠いた一対のスリットが前記凹部又は貫通孔の両側に設けられているので、電気部品を接続箱本体内に挿入する容易な作業でこの電気部品を接続箱本体に取り付けることができる。また、接続箱本体には部品本体を包囲する周壁が設けられているので、電気部品をがたつくことなく接続箱本体に取り付けることができる。 According to a third aspect of the present invention, the connection box main body is provided with a peripheral wall surrounding the component main body, and the second locking portion of the component main body is provided on the outer surface of the component main body. The second locking receiving portion of the junction box body is a recess provided in the inner surface of the peripheral wall or a through hole provided in the peripheral wall, and the peripheral wall includes the electric component. Since a pair of slits extending in the direction of insertion into the junction box body and notched at the edge of the peripheral wall are provided on both sides of the recess or the through hole, an easy operation of inserting electrical components into the junction box body This electrical component can be attached to the junction box body. Moreover, since the peripheral wall which surrounds a component main body is provided in the junction box main body, an electrical component can be attached to a junction box main body, without rattling.

請求項４に記載の本発明によれば、前記第１係止部は、前記端子に設けられた貫通孔で
構成され、前記相手方端子が、前記端子が挿入される筒状部と、前記筒状部の内側に設け
られ、前記筒状部に挿入された前記端子を前記筒状部の一つの壁に向かって付勢するばね
片と、を備え、前記筒状部には、当該筒状部の内側方向に突出して、前記第１係止部に係
止する前記第１係止受け部が設けられている。相手方端子は、端子に電気接続されるばね
片と、端子に係止する第１係止受け部と、が別々に設けられている。よって、相手方端子
に端子を抜ける方向の負荷が加えられた際に、この負荷を第１係止受け部が受け止めるこ
とにより、ばね片にこの負荷がかからないので、ばね片の接圧が下がるのを防止でき、相
手方端子と端子との電気接続を安定させることができる。また、第１係止受け部は、筒状
部の一つの壁から内側方向に突出して形成され、筒状部から外側に突出していないので、
第１係止受け部が他の部品に引っ掛かるのを防止できる。 According to this invention of Claim 4 , the said 1st latching | locking part is comprised by the through-hole provided in the said terminal, The said other party terminal is a cylindrical part in which the said terminal is inserted, The said cylinder A spring piece that is provided inside the tubular portion and biases the terminal inserted into the tubular portion toward one wall of the tubular portion, and the tubular portion includes the tubular portion. The first engagement receiving portion that protrudes inwardly of the portion and engages with the first engagement portion is provided. The counterpart terminal is provided with a spring piece that is electrically connected to the terminal and a first locking receiving portion that is locked to the terminal. Therefore, when a load is applied to the counterpart terminal in the direction of exiting the terminal, the load is not applied to the spring piece when the first latch receiving part receives the load, so that the contact pressure of the spring piece is reduced. The electrical connection between the counterpart terminal and the terminal can be stabilized. Further, the first locking receiving portion is formed to protrude inward from one wall of the cylindrical portion, and does not protrude outward from the cylindrical portion.
It is possible to prevent the first locking receiving portion from being caught by other parts.

請求項５に記載の本発明によれば、前記第１係止受け部は、前記筒状部の前記一つの壁から切り起こされ、当該一つの壁から内側方向に突出して形成されているので、端子が筒状部内に挿入されると、第１係止受け部とばね片とで互いに逆方向から端子を挟むようにでき、これにより、第１係止受け部の第１係止部への係止状態と、ばね片及び端子の電気接続状態とを、より一層安定させることができる。 According to this invention of Claim 5 , since the said 1st latching receiving part is cut and raised from the said one wall of the said cylindrical part, and is protruded and formed in the inner direction from the said one wall, When the terminal is inserted into the cylindrical portion, the first locking receiving portion and the spring piece can sandwich the terminal from the opposite directions, thereby moving the first locking receiving portion to the first locking portion. And the electrical connection state of the spring piece and the terminal can be further stabilized.

本発明の第１の実施形態にかかる電気接続箱を示す斜視図である。It is a perspective view which shows the electrical junction box concerning the 1st Embodiment of this invention. 図１に示された電気接続箱の分解斜視図である。FIG. 2 is an exploded perspective view of the electrical junction box shown in FIG. 1. 図１に示された、電気接続箱を構成するリレーの端子に相手方端子が接続された状態を示す斜視図である。It is a perspective view which shows the state by which the other party terminal was connected to the terminal of the relay which comprises the electrical junction box shown by FIG. 図１中のＩ−Ｉ線に沿う断面図である。It is sectional drawing which follows the II line | wire in FIG. 図１中のＩＩ−ＩＩ線に沿う断面図である。It is sectional drawing which follows the II-II line | wire in FIG. 本発明の第２の実施形態にかかる電気接続箱を示す斜視図である。It is a perspective view which shows the electrical-connection box concerning the 2nd Embodiment of this invention. 図６に示された、電気接続箱を構成するリレーの端子に相手方端子が接続された状態を示す斜視図である。It is a perspective view which shows the state by which the other party terminal was connected to the terminal of the relay which comprises the electrical junction box shown by FIG. 図６に示された、電気接続箱を構成するリレーの端子に相手方端子が接続された状態を示す平面図である。It is a top view which shows the state by which the other party terminal was connected to the terminal of the relay which comprises the electrical junction box shown by FIG. 図８中のＩＩＩ−ＩＩＩ線に沿う断面図である。It is sectional drawing which follows the III-III line in FIG. 相手方端子の第２突出部が端子の貫通孔に係止する様子を示す断面図であり、（Ａ）は、第２突出部が端子上に乗り上げ状態を示す図であり、（Ｂ）は、第２突出部が端子の貫通孔に係止した状態を示す図である。It is sectional drawing which shows a mode that the 2nd protrusion part of an other party terminal latches in the through-hole of a terminal, (A) is a figure which shows a 2nd protrusion part riding on a terminal, (B), It is a figure which shows the state which the 2nd protrusion part latched in the through-hole of the terminal. 従来の電気接続箱を構成するリレー及びカセットブロックを示す斜視図である。It is a perspective view which shows the relay and cassette block which comprise the conventional electrical junction box. 図１１に示されたリレー及びカセットブロックを分解して示す斜視図である。FIG. 12 is an exploded perspective view showing the relay and cassette block shown in FIG. 11. 図１２中のＩＶ−ＩＶ線に沿う断面図である。It is sectional drawing which follows the IV-IV line in FIG.

以下、本発明の第１の実施形態にかかる電気接続箱１を、図１乃至図５に基づいて説明する。 Hereinafter, an electrical junction box 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 5.

上記電気接続箱１は、図１、図２に示すように、複数のリレー２と、前記複数のリレー２それぞれに接続される各相手方端子３と、互いに接続されたリレー２と相手方端子３とが収容される接続箱本体４と、前記接続箱本体４の図中の上方に取り付けられる図示しないアッパーカバーと、接続箱本体４の図中の下方に取り付けられる図示しないロアカバーと、を備えている。また、リレー２は、特許請求の範囲に記載された「電気部品」に相当する。 As shown in FIGS. 1 and 2, the electrical junction box 1 includes a plurality of relays 2, each counterpart terminal 3 connected to each of the plurality of relays 2, a relay 2 and a counterpart terminal 3 connected to each other. A connection box main body 4 in which the connection box main body 4 is accommodated, an upper cover (not shown) attached to the upper side of the connection box main body 4 in the figure, and a lower cover (not shown) attached to the lower side of the connection box main body 4 in the figure. . The relay 2 corresponds to an “electric part” described in the claims.

上記リレー２は、図２に示すように、リレー本体２１と、前記リレー本体２１から突出した複数の端子２６と、を有している。上記リレー本体２１は、底面２２と、前記底面２２と相対する天面２３と、これら底面２２と天面２３との縁同士を連結する４つの側面２４Ａ、２４Ｂ、２４Ｃ、２４Ｄと、を有する立方体状に形成されている。上記４つの側面２４Ａ、２４Ｂ、２４Ｃ、２４Ｄのうち、側面２４Ａと、この側面２４Ａに相対する側面２４Ｃには、接続箱本体４の後述する貫通孔４４に係止する一対の突起２５が設けられている。また、リレー本体２１は、特許請求の範囲に記載された「部品本体」に相当し、突起２５は、特許請求の範囲に記載された「第２係止部」に相当する。また、図１などの矢印Ｙは、端子２６が接続箱本体４の後述する収容室４１に挿入される方向を示している。 As shown in FIG. 2, the relay 2 includes a relay main body 21 and a plurality of terminals 26 protruding from the relay main body 21. The relay body 21 is a cube having a bottom surface 22, a top surface 23 facing the bottom surface 22, and four side surfaces 24A, 24B, 24C, and 24D that connect the edges of the bottom surface 22 and the top surface 23. It is formed in a shape. Of the four side surfaces 24A, 24B, 24C, and 24D, the side surface 24A and the side surface 24C opposite to the side surface 24A are provided with a pair of protrusions 25 that are engaged with through holes 44 described later of the connection box body 4. ing. The relay main body 21 corresponds to a “component main body” recited in the claims, and the protrusion 25 corresponds to a “second locking portion” recited in the claims. Further, an arrow Y in FIG. 1 or the like indicates a direction in which the terminal 26 is inserted into a storage chamber 41 (to be described later) of the junction box body 4.

上記突起２５は、側面２４Ａ、２４Ｃの外面から凸に形成されている。また、突起２５は接続箱本体４の貫通孔４４に係止する。また、突起２５が貫通孔４４に係止することにより、リレー２は接続箱本体４に取り付けられる。また、「突起２５が貫通孔４４に係止する」とは、突起２５が貫通孔４４に嵌ることを意味する。 The protrusion 25 is formed so as to protrude from the outer surfaces of the side surfaces 24A and 24C. Further, the protrusion 25 is engaged with the through hole 44 of the junction box body 4. In addition, the relay 2 is attached to the junction box body 4 by the projection 25 being locked in the through hole 44. Further, “the protrusion 25 is locked to the through hole 44” means that the protrusion 25 is fitted into the through hole 44.

上記端子２６はリレー本体２１の底面２２から突出している。各端子２６は板状に形成されており、その中央部には貫通孔２６ａが設けられている。また、貫通孔２６ａは、特許請求の範囲に記載された「第１係止部」に相当する。 The terminal 26 protrudes from the bottom surface 22 of the relay body 21. Each terminal 26 is formed in a plate shape, and a through hole 26a is provided at the center thereof. The through hole 26a corresponds to a “first locking portion” described in the claims.

上記相手方端子３は複数（図示例では１つ）設けられている。各相手方端子３は板金に打ち抜き加工や曲げ加工が施されることで得られるものである。各相手方端子３は、図２、図３に示すように、端子２６に接続される電気接触部３０と、前記電気接触部３０に連なり、図示しない電線に接続される電線接続部３１と、を備えている。また、図３では接続箱本体４は省略されている。 A plurality (one in the illustrated example) of the counterpart terminals 3 are provided. Each counterpart terminal 3 is obtained by punching or bending a sheet metal. As shown in FIGS. 2 and 3, each counterpart terminal 3 includes an electrical contact portion 30 connected to the terminal 26, and a wire connection portion 31 connected to the electrical contact portion 30 and connected to an electric wire (not shown). I have. In FIG. 3, the junction box body 4 is omitted.

上記電気接触部３０は、板状の底壁３２と、前記底壁３２の幅方向の両縁から立設した一対の側壁３３と、前記一対の側壁３３を連結し底壁３２と間隔をあけて設けられた天壁３４と、を有し、リレー２の端子２６が挿入される角筒部３５と、前記角筒部３５の内側に設けられ、角筒部３５に挿入された端子２６を、「一つの壁」である天壁３４に向かって付勢するばね片３６と、を備えている。また、角筒部３５は、特許請求の範囲に記載された「筒状部」に相当し、天壁３４は、特許請求の範囲に記載された「一つの壁」に相当する。 The electrical contact portion 30 includes a plate-like bottom wall 32, a pair of side walls 33 erected from both edges in the width direction of the bottom wall 32, and the pair of side walls 33 connected to each other so as to be spaced from the bottom wall 32. A rectangular tube portion 35 into which the terminal 26 of the relay 2 is inserted, and a terminal 26 provided inside the rectangular tube portion 35 and inserted into the rectangular tube portion 35. , And a spring piece 36 that urges toward the top wall 34 that is “one wall”. Further, the rectangular tube portion 35 corresponds to a “tubular portion” described in the claims, and the top wall 34 corresponds to “one wall” described in the claims.

上記天壁３４には貫通孔３４ａが設けられている。上記貫通孔３４ａは、角筒部３５にリレー２の端子２６が挿入されると、端子２６の貫通孔２６ａと重なる位置に設けられている。 The ceiling wall 34 is provided with a through hole 34a. The through hole 34 a is provided at a position overlapping the through hole 26 a of the terminal 26 when the terminal 26 of the relay 2 is inserted into the rectangular tube portion 35.

上記ばね片３６は、底壁３２の内面に連なり、片持ち板状に設けられている。また、ばね片の自由端には、天壁３４の貫通孔３４ａの内側に向かって突出し、互いに重ねられた貫通孔２６ａ、３４ａに係止する第１突出部３９が設けられている。第１突出部３９は、特許請求の範囲に記載された「第１係止受け部」に相当する。 The spring piece 36 is connected to the inner surface of the bottom wall 32 and is provided in a cantilever shape. The free end of the spring piece is provided with a first protrusion 39 that protrudes toward the inside of the through hole 34a of the top wall 34 and engages with the through holes 26a and 34a that are overlapped with each other. The first projecting portion 39 corresponds to a “first locking receiving portion” recited in the claims.

また、上記突出部３９は、ばね片３６の一部が切り起こされることで得られたものである。また、突出部３９が、互いに重ねられた貫通孔２６ａ、３４ａに係止することにより、相手方端子３は端子２６に取り付けられる。 The protruding portion 39 is obtained by cutting and raising a part of the spring piece 36. Further, the mating terminal 3 is attached to the terminal 26 by the protruding portion 39 engaging with the through holes 26 a, 34 a overlapped with each other.

また、「突出部３９が、互いに重ねられた貫通孔２６ａ、３４ａに係止する」とは、突出部３９が、互いに重ねられた貫通孔２６ａ、３４ａに嵌ることを意味する。また、突出部３９が、端子２６の貫通孔２６ａ及び天壁３４の貫通孔３４ａに係止する際は、端子２６の角筒部３５内への挿入が進むにしたがって、端子２６が突出部３９上に乗り上げるとともに、ばね片３６が天壁３４から離れる方向に撓み、そして、端子２６が突出部３９を乗り越えることにより、ばね片３６が撓む前の状態に復元し、貫通孔２６ａ及び貫通孔３４ａに係止する。 Further, “the protruding portion 39 is locked to the through holes 26 a and 34 a stacked on each other” means that the protruding portion 39 fits into the through holes 26 a and 34 a stacked on each other. Further, when the protruding portion 39 engages with the through hole 26 a of the terminal 26 and the through hole 34 a of the top wall 34, the terminal 26 moves into the protruding portion 39 as the insertion of the terminal 26 into the rectangular tube portion 35 proceeds. The spring piece 36 bends in the direction away from the top wall 34 as it rides on the top, and when the terminal 26 climbs over the protrusion 39, the state before the spring piece 36 is bent is restored, and the through hole 26a and the through hole Lock to 34a.

また、第１突出部３９が貫通孔２６ａ及び貫通孔３４ａに係止することにより、相手方端子３が端子２６に取り付けられる。このことにより、従来のランス１０５を接続箱本体４に設けずとも、相手方端子３を接続箱本体４内に保持することができる。 Further, the counterpart terminal 3 is attached to the terminal 26 by the first protrusion 39 being engaged with the through hole 26 a and the through hole 34 a. Thus, the counterpart terminal 3 can be held in the connection box body 4 without providing the conventional lance 105 in the connection box body 4.

上記電線接続部３１は、電気接触部３０の底壁３２に連なり、電線を表面上に位置付ける基壁３７と、前記基壁３７の幅方向の両端部から立設し、電線の芯線を圧着する一対の芯線圧着片３８と、を備えている。 The electric wire connection portion 31 is connected to the bottom wall 32 of the electric contact portion 30, and is erected from a base wall 37 that positions the electric wire on the surface, and both ends in the width direction of the base wall 37, and crimps the core wire of the electric wire. A pair of core wire crimping pieces 38.

電線接続部３１は、端部の絶縁被覆が皮剥きされて芯線が露出した状態の断面丸形の電線が基壁３７上に載置された後、この電線の芯線部分を基壁３７に向かって押しつける方向に芯線圧着片３８が曲げられて、即ち芯線圧着片３８で電線の芯線部分をかしめて電線と電気的及び機械的に接続される。 The electric wire connecting portion 31 is formed by placing an electric wire having a round cross section in a state in which the insulating coating at the end portion is peeled off and the core wire is exposed on the base wall 37, and then the core wire portion of the electric wire is directed toward the base wall 37. The core wire crimping piece 38 is bent in the direction of pressing, that is, the core wire crimping piece 38 is used to crimp the core wire portion to electrically and mechanically connect the wire.

上記接続箱本体４は複数のブロック４６で構成されている。また、図２、図４では、複数のブロック４６のうち１つのみを示し、他のブロック４６は省略されている。同図に示すように、このブロック４６は、複数の収容室４１を有するブロック本体４０と、リレー本体２１を包囲する周壁４２と、を有している。 The junction box body 4 is composed of a plurality of blocks 46. 2 and 4, only one of the plurality of blocks 46 is shown, and the other blocks 46 are omitted. As shown in the figure, the block 46 includes a block main body 40 having a plurality of storage chambers 41 and a peripheral wall 42 surrounding the relay main body 21.

上記各収容室４１は、内側にリレー２の端子２６及び相手方端子３を収容する。また、収容室４１はその長手方向が矢印Ｙに延びた筒状に形成されている。即ち収容室４１の長手方向の両端部はブロック本体４０の外部と連通している。このような収容室４１には長手方向の一方の開口からリレー２の端子２６が挿入され、他方の開口から相手方端子３が挿入される。 Each accommodation chamber 41 accommodates the terminal 26 of the relay 2 and the counterpart terminal 3 inside. The storage chamber 41 is formed in a cylindrical shape whose longitudinal direction extends in the arrow Y direction. That is, both ends in the longitudinal direction of the storage chamber 41 communicate with the outside of the block body 40. In such a storage chamber 41, the terminal 26 of the relay 2 is inserted from one opening in the longitudinal direction, and the counterpart terminal 3 is inserted from the other opening.

上記周壁４２は、リレー本体２１の底面２２が重ねられるブロック本体４０の上面４０ａの周縁から筒状に立設し、リレー本体２１の４つの側面２４Ａ、２４Ｂ、２４Ｃ、２４Ｄに重ねられる。また、周壁４２は、リレー２の一対の突起２５が係止する一対の貫通孔４４と、各貫通孔４４の両側に設けられた各一対のスリット４３と、を有している。また、貫通孔４４は、特許請求の範囲に記載された「第２係止受け部」に相当する。 The peripheral wall 42 is erected in a cylindrical shape from the periphery of the upper surface 40a of the block main body 40 on which the bottom surface 22 of the relay main body 21 is overlapped, and overlaps the four side surfaces 24A, 24B, 24C, 24D of the relay main body 21. Further, the peripheral wall 42 has a pair of through holes 44 to which the pair of protrusions 25 of the relay 2 are locked, and a pair of slits 43 provided on both sides of each through hole 44. The through hole 44 corresponds to a “second locking receiving portion” recited in the claims.

上記一対のスリット４３は、貫通孔４４の両側に設けられている。各スリット４３は矢印Ｙ方向に延びており、周壁４２の縁を切り欠いている。また一対のスリット４３間に位置する周壁４２の一部（以後、撓み部と称し、符号４５を付す）は、突起２５が設けられた側面２４Ａ、２４Ｃに近付く方向及び離れる方向に弾性変形自在に設けられている。 The pair of slits 43 are provided on both sides of the through hole 44. Each slit 43 extends in the direction of the arrow Y and cuts out the edge of the peripheral wall 42. Further, a part of the peripheral wall 42 located between the pair of slits 43 (hereinafter referred to as a bending portion and denoted by reference numeral 45) is elastically deformable in a direction toward and away from the side surfaces 24A and 24C where the protrusions 25 are provided. Is provided.

また、突起２５が貫通孔４４に係止する際は、リレー本体２１の周壁４２への挿入が進むにしたがって、撓み部４５が突起２５上に乗り上げるとともに、撓み部４５が側壁２４Ａ、２４Ｃから離れる方向に撓み、そして、撓み部４５が突起２５の頂部を乗り越えることにより撓み部４５が撓む前の状態に弾性復元し、突起２５が貫通孔４４に係止する。また、突起２５が貫通孔４４に係止することにより、リレー２が接続箱本体４に取り付けられる。 Further, when the protrusion 25 is locked in the through hole 44, the bending portion 45 rides on the protrusion 25 and the bending portion 45 moves away from the side walls 24A and 24C as the insertion into the peripheral wall 42 of the relay body 21 proceeds. When the bent portion 45 gets over the top of the protrusion 25, the bent portion 45 is elastically restored to the state before the bent portion 45 is bent, and the protrusion 25 is locked in the through hole 44. In addition, the relay 2 is attached to the junction box body 4 by the projection 25 being locked in the through hole 44.

また、接続箱本体４は、従来の電気接続箱１０１における相手方端子１０３に係止するランス１０５のように、相手方端子３に接続された電線が引っ張られた際においても上述した撓み部４５に力がかかることがなくなり、そのために撓み部４５は相手方端子３を収容室４０内に保持する機械的強度を有する必要がなくなり、撓み部４５を有する接続箱本体４を高価な樹脂で構成しなくてもよくなる。 In addition, the connection box body 4 does not exert a force on the above-described bending portion 45 even when an electric wire connected to the counterpart terminal 3 is pulled, like a lance 105 that is locked to the counterpart terminal 103 in the conventional electrical connection box 101. Therefore, the bending portion 45 does not need to have the mechanical strength to hold the counterpart terminal 3 in the accommodating chamber 40, and the junction box body 4 having the bending portion 45 is not made of an expensive resin. Also gets better.

次に、上述した電気接続箱１の組立手順について、図４、図５を参照して説明する。まず、予め相手方端子３の電線接続部３１に電線を取り付けておく。そして、接続箱本体４の周壁４２が上側になる向きでリレー２の端子２６を接続箱本体４の収容室４１の一方の開口に近付けて、収容室４１に矢印Ｙに沿って挿入し、リレー２の突起２５を接続箱本体４の貫通孔４４に係止させて、リレー２を接続箱本体４に取り付ける。次に、接続箱本体４の周壁４２が下側になる向きで相手方端子３の電気接触部３０側を収容室４１の他方の開口に近付けて、収容室４１に矢印Ｙに沿って挿入し、相手方端子３の突出部３９を端子２６の貫通孔２６ａに係止させることにより、相手方端子３を端子２６に取り付ける。このようにして端子２６及び相手方端子３を収容室４１に収容する。最後に、アッパーカバー及びロアカバーを接続箱本体４に取り付けて、電気接続箱１の組み立てを完了する。 Next, the assembly procedure of the electrical junction box 1 described above will be described with reference to FIGS. First, an electric wire is attached to the electric wire connecting portion 31 of the counterpart terminal 3 in advance. Then, the terminal 26 of the relay 2 is brought close to one opening of the storage chamber 41 of the connection box main body 4 with the peripheral wall 42 of the connection box main body 4 facing upward, and is inserted into the storage chamber 41 along the arrow Y, and the relay The relay 2 is attached to the junction box body 4 by engaging the projections 25 of the two in the through holes 44 of the junction box body 4. Next, with the peripheral wall 42 of the junction box body 4 facing downward, the electrical contact portion 30 side of the counterpart terminal 3 is brought closer to the other opening of the storage chamber 41 and inserted into the storage chamber 41 along the arrow Y, The counterpart terminal 3 is attached to the terminal 26 by locking the protruding portion 39 of the counterpart terminal 3 in the through hole 26 a of the terminal 26. In this way, the terminal 26 and the counterpart terminal 3 are accommodated in the accommodation chamber 41. Finally, the upper cover and the lower cover are attached to the junction box body 4 to complete the assembly of the electrical junction box 1.

上述した実施形態によれば、前記端子２６には貫通孔２６ａ（第１係止部）が設けられ、前記相手方端子３には前記貫通孔２６ａに係止する突出部３９（第１係止受け部）が設けられ、前記突出部３９が前記貫通孔２６ａに係止することにより、前記相手方端子３が前記端子２６に取り付けられるので、突出部３９が貫通孔２６ａに係止することにより、相手方端子３が接続箱本体４内に保持されることとなり、よって、従来のランスを廃止することができ、接続箱本体４を構成する材料を安価な樹脂に変更できるのでコストの低減を図ることができる。また、自動車が走行中に振動した際においても、リレー２（電気部品）の端子２６と該端子２６に接続される相手方端子３との電気的接続の信頼性を確保することができる。また、端子２６と相手方端子３との接圧を従来品よりも低くすることができ、端子２６を各収容室４１に挿入する際の挿入力を小さくすることができて、組付け作業性の向上を図ることができる。 According to the above-described embodiment, the terminal 26 is provided with a through hole 26a (first locking portion), and the counterpart terminal 3 has a protruding portion 39 (first locking receiver) that locks into the through hole 26a. Part), and the mating terminal 3 is attached to the terminal 26 by the projection 39 being engaged with the through hole 26a, so that the projecting part 39 is engaged with the through hole 26a. Since the terminal 3 is held in the junction box body 4, the conventional lance can be abolished, and the material constituting the junction box body 4 can be changed to an inexpensive resin, so that the cost can be reduced. it can. Further, even when the automobile vibrates while traveling, the reliability of electrical connection between the terminal 26 of the relay 2 (electrical component) and the counterpart terminal 3 connected to the terminal 26 can be ensured. Further, the contact pressure between the terminal 26 and the counterpart terminal 3 can be made lower than that of the conventional product, and the insertion force when the terminal 26 is inserted into each storage chamber 41 can be reduced. Improvements can be made.

また、リレー本体２１（部品本体）には突起２５（第２係止部）が設けられ、前記接続箱本体４には、前記突起２５に係止する貫通孔４４（第２係止受け部）が設けられ、前記突起２５が前記貫通孔４４に係止することにより、前記リレー２を前記接続箱本体４に取り付けることができるので、リレー２が接続箱本体４から脱落するのを確実に防止できる。また、リレー２が接続箱本体４から脱落するのを確実に防止できるので、リレー２を接続箱本体４に取り付けた後、接続箱本体４を上下逆向きにしてリレー２を接続箱本体４の下側に位置付けて収容室４１の他方の開口を目視しながら相手方端子３を収容室４１に挿入することができるので、組付け作業性の向上を図ることができる。 The relay main body 21 (component main body) is provided with a protrusion 25 (second locking portion), and the connection box main body 4 has a through hole 44 (second locking receiving portion) for locking to the protrusion 25. Since the projection 25 engages with the through hole 44, the relay 2 can be attached to the junction box body 4, so that the relay 2 can be reliably prevented from falling off the junction box body 4. it can. Further, since the relay 2 can be reliably prevented from falling off the connection box body 4, after the relay 2 is attached to the connection box body 4, the connection box body 4 is turned upside down and the relay 2 is connected to the connection box body 4. Since the counterpart terminal 3 can be inserted into the storage chamber 41 while observing the other opening of the storage chamber 41 while being positioned on the lower side, the assembling workability can be improved.

また、前記接続箱本体４には前記リレー本体２１を包囲する周壁４２が設けられており、前記リレー本体２１の前記第２係止部が、前記部品本体の外面に設けられた突起２５であり、前記接続箱本体４の前記第２係止受け部が、前記周壁４２の内面に設けられた凹部又は前記周壁４２に設けられた貫通孔４４であり、前記周壁４２には、前記リレー２の前記接続箱本体４への挿入方向Ｙに延び、前記周壁４２の縁を切り欠いた一対のスリット４３が前記凹部又は貫通孔４４の両側に設けられているので、リレー２を接続箱本体４内に挿入する容易な作業でこのリレー２を接続箱本体４に取り付けることができる。また、接続箱本体４にはリレー本体２１を包囲する周壁４２が設けられているので、リレー２をがたつくことなく接続箱本体４に取り付けることができる。 The junction box body 4 is provided with a peripheral wall 42 surrounding the relay body 21, and the second locking portion of the relay body 21 is a protrusion 25 provided on the outer surface of the component body. The second latch receiving portion of the junction box body 4 is a recess provided in the inner surface of the peripheral wall 42 or a through hole 44 provided in the peripheral wall 42, and the peripheral wall 42 includes the relay 2. Since a pair of slits 43 extending in the insertion direction Y to the junction box body 4 and notched at the edge of the peripheral wall 42 are provided on both sides of the recess or through hole 44, the relay 2 is connected to the junction box body 4. The relay 2 can be attached to the junction box main body 4 by an easy operation of inserting into the junction box. Moreover, since the peripheral wall 42 surrounding the relay main body 21 is provided in the connection box main body 4, the relay 2 can be attached to the connection box main body 4 without rattling.

また、前記第１係止部が、前記端子２６に設けられた貫通孔２６ａであり、前記相手方端子３が、前記端子２６が挿入される角筒部３５（筒状部）と、前記角筒部３５の内側に設けられ、前記角筒部３５に挿入された前記端子２６を前記角筒部３５の天壁３４（一つの壁）に向かって付勢するばね片３６と、を備え、前記ばね片３６には前記天壁３４に向かって突出した前記突出部３９（第１係止受け部）が設けられ、互いに重ねられた前記突出部３９及び前記天壁３４に設けられた貫通孔３４ａに前記突出部３９が係止するので、端子２６を相手方端子３の角筒部３５内に挿入する容易な作業で、相手方端子３を端子２６に取り付けることができる。 In addition, the first locking portion is a through hole 26a provided in the terminal 26, the counterpart terminal 3 includes a rectangular tube portion 35 (tubular portion) into which the terminal 26 is inserted, and the rectangular tube. A spring piece 36 provided inside the portion 35 and biasing the terminal 26 inserted into the rectangular tube portion 35 toward the top wall 34 (one wall) of the rectangular tube portion 35, and The spring piece 36 is provided with the protruding portion 39 (first locking receiving portion) protruding toward the top wall 34, and the protruding portion 39 and the through hole 34 a provided in the top wall 34 are overlapped with each other. Therefore, the counterpart terminal 3 can be attached to the terminal 26 by an easy operation of inserting the terminal 26 into the rectangular tube portion 35 of the counterpart terminal 3.

以下、本発明の第２の実施形態にかかる電気接続箱１Ａを、図６乃至図１０に基づいて説明する。なお、図６乃至図１０において、前述した実施形態と同一部分には、同一符号を付して説明を省略する。 Hereinafter, an electrical junction box 1A according to a second embodiment of the present invention will be described with reference to FIGS. 6 to 10, the same parts as those of the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

上記電気接続箱１Ａは、図６、図７に示すように、複数のリレー２（図示例では１つ）と、前記複数のリレー２それぞれに接続される各相手方端子３Ａ（図７に示す）と、互いに接続されたリレー２と相手方端子３Ａとが収容される接続箱本体４Ａと、接続箱本体４Ａの図中の上方に取り付けられる図示しないアッパーカバーと、接続箱本体４Ａの図中の下方に取り付けられる図示しないロアカバーと、を備えている。 As shown in FIGS. 6 and 7, the electrical junction box 1 A includes a plurality of relays 2 (one in the illustrated example) and each counterpart terminal 3 A (shown in FIG. 7) connected to each of the plurality of relays 2. A connection box main body 4A in which the relay 2 and the counterpart terminal 3A connected to each other are accommodated, an upper cover (not shown) attached to the upper side of the connection box main body 4A in the figure, and a lower side of the connection box main body 4A in the figure And a lower cover (not shown) attached to the head.

上記相手方端子３Ａは複数（図示例では１つ）設けられている。各相手方端子３Ａは板金に打ち抜き加工や曲げ加工が施されることで得られるものである。各相手方端子３Ａは、図７、図８に示すように、端子２６に接続される電気接触部３０と、前記電気接触部３０に連なり、電線１０に接続される電線接続部３１と、を備えている。また、図７〜図９では接続箱本体４Ａは省略されている。 A plurality (one in the illustrated example) of the counterpart terminals 3A are provided. Each counterpart terminal 3A is obtained by punching or bending a sheet metal. As shown in FIGS. 7 and 8, each counterpart terminal 3 A includes an electrical contact portion 30 connected to the terminal 26, and a wire connection portion 31 connected to the electrical contact portion 30 and connected to the electric wire 10. ing. 7 to 9, the connection box body 4A is omitted.

上記電気接触部３０は、図９に示すように、板状の底壁３２と、前記底壁３２の幅方向の両縁から立設した一対の側壁３３と、前記一対の側壁３３を連結し底壁３２と間隔をあけて設けられた天壁３４と、を有し、リレー２の端子２６が挿入される角筒部３５と、前記角筒部３５の内側に設けられ、角筒部３５に挿入された端子２６を、「一つの壁」である天壁３４に向かって付勢するばね片３６と、を備えている。 As shown in FIG. 9, the electrical contact portion 30 connects the plate-like bottom wall 32, a pair of side walls 33 erected from both edges in the width direction of the bottom wall 32, and the pair of side walls 33. A square wall portion 35 into which the terminal 26 of the relay 2 is inserted; and a square tube portion 35 provided inside the square tube portion 35. And a spring piece 36 for urging the terminal 26 inserted into the top wall 34 which is “one wall”.

上記天壁３４には、角筒部３５の内側方向に向かって突出し、端子２６の貫通孔２６ａに係止する第２突出部５０が設けられている。この第２突出部５０は、天壁３４の一部が切り起こされることで得られたものである。また、第２突出部５０が、貫通孔２６ａに係止することにより、相手方端子３Ａは端子２６に取り付けられる。第２突出部５０は、特許請求の範囲に記載された「第１係止受け部」に相当する。本実施形態では、第２突出部５０は、天壁３４に設けられているが、本発明はこれに限ったものではなく、第２突出部５０は、底壁３２に設けられ、当該底壁３２から角筒部３５の内側方向に向かって突出していても良い。 The top wall 34 is provided with a second protrusion 50 that protrudes toward the inner side of the rectangular tube portion 35 and engages with the through hole 26 a of the terminal 26. The second protrusion 50 is obtained by cutting and raising a part of the top wall 34. In addition, the counterpart terminal 3 A is attached to the terminal 26 by the second projecting portion 50 engaging with the through hole 26 a. The 2nd protrusion part 50 is corresponded to the "1st latching receiving part" described in the claim. In the present embodiment, the second protrusion 50 is provided on the top wall 34, but the present invention is not limited to this, and the second protrusion 50 is provided on the bottom wall 32, and the bottom wall It may project from 32 toward the inner side of the rectangular tube portion 35.

また、「第２突出部５０が貫通孔２６ａに係止する」とは、第２突出部５０が、貫通孔２６ａに嵌ることを意味する。また、第２突出部５０が、端子２６の貫通孔２６ａに係止する際は、図１０（Ａ）、（Ｂ）に示すように、端子２６の角筒部３５内への挿入が進むにしたがって、第２突出部５０がばね片３６（底壁３２）から離れる方向に撓み、第２突出部５０が端子２６上に乗り上げ、そして、第２突出部５０が貫通孔２６ａの縁を乗り越えることにより、第２突出部５０が撓む前の状態に復元し、貫通孔２６ａに係止する。 Further, “the second protrusion 50 is locked to the through hole 26 a” means that the second protrusion 50 is fitted into the through hole 26 a. Moreover, when the 2nd protrusion part 50 latches in the through-hole 26a of the terminal 26, as shown to FIG. 10 (A) and (B), insertion to the square cylinder part 35 of the terminal 26 advances. Accordingly, the second protrusion 50 bends away from the spring piece 36 (bottom wall 32), the second protrusion 50 rides on the terminal 26, and the second protrusion 50 gets over the edge of the through hole 26a. Thus, the state before the second projecting portion 50 is bent is restored and locked to the through hole 26a.

上述した構成以外に、本発明では、第２突出部５０を以下の構成としても良い。即ち、貫通孔２６ａに係止した状態で端子２６をばね片３６側に付勢するように第２突出部５０を形成しても良い。これにより、第２突出部５０とばね片３６とで端子２６を挟むようにできる。 In addition to the configuration described above, in the present invention, the second protrusion 50 may have the following configuration. That is, the second protrusion 50 may be formed so as to urge the terminal 26 toward the spring piece 36 in a state of being locked in the through hole 26a. Accordingly, the terminal 26 can be sandwiched between the second protrusion 50 and the spring piece 36.

また、天壁３４には、図１０に示すように、ばね片３６と対向する位置に、ばね片３６に向かって突出した突部５２が設けられている。前述した第２突出部５０の先端は、突部５２よりも底壁３２側に位置している。換言すると、第２突出部５０の先端は、突部５２よりも角筒部３５の内側、即ち、底壁３２側に向かって突出している。 Further, as shown in FIG. 10, the top wall 34 is provided with a protrusion 52 that protrudes toward the spring piece 36 at a position facing the spring piece 36. The tip of the second protrusion 50 described above is located closer to the bottom wall 32 than the protrusion 52. In other words, the tip of the second projecting portion 50 projects from the projecting portion 52 toward the inside of the rectangular tube portion 35, that is, toward the bottom wall 32.

上記ばね片３６は、底壁３２の内面に連なり、片持ち板状に設けられている。このばね片３６の自由端は、角筒部３５内に挿入された端子２６に弾性接触する。この自由端が端子２６に弾性接触することにより、ばね片３６は端子２６に電気接続される。 The spring piece 36 is connected to the inner surface of the bottom wall 32 and is provided in a cantilever shape. The free end of the spring piece 36 is in elastic contact with the terminal 26 inserted into the rectangular tube portion 35. When the free end is in elastic contact with the terminal 26, the spring piece 36 is electrically connected to the terminal 26.

上記電線接続部３１は、図８に示すように、電気接触部３０の底壁３２に連なり、電線１０を表面上に位置付ける基壁３７と、前記基壁３７の幅方向の両端部から立設し、電線１０の芯線を圧着する一対の芯線圧着片３８Ａと、前記基壁３７の幅方向の両端部から立設し、電線１０の被覆部をかしめる一対の被覆部かしめ片３８Ｂと、を備えている。 As shown in FIG. 8, the electric wire connecting portion 31 is connected to the bottom wall 32 of the electric contact portion 30, and is erected from a base wall 37 that positions the electric wire 10 on the surface, and both ends of the base wall 37 in the width direction. A pair of core wire crimping pieces 38A for crimping the core wire of the electric wire 10 and a pair of covering portion caulking pieces 38B that are erected from both end portions in the width direction of the base wall 37 and caulk the covering portion of the electric wire 10. I have.

上記接続箱本体４Ａは複数のブロック４６で構成されている。また、図６では、複数のブロック４６のうち１つのみを示し、他のブロック４６は省略されている。同図に示すように、このブロック４６は、複数の収容室４１を有するブロック本体４０と、リレー本体２１を互いの間に挟む一対の挟持片５３と、を有している。 The junction box body 4A is composed of a plurality of blocks 46. In FIG. 6, only one of the plurality of blocks 46 is shown, and the other blocks 46 are omitted. As shown in the figure, the block 46 includes a block main body 40 having a plurality of storage chambers 41 and a pair of clamping pieces 53 that sandwich the relay main body 21 therebetween.

上記一対の挟持片５３は、ブロック本体４０の上面４０ａの縁から板状に立設しているとともに、その中央部にリレー本体２１の突起２５が係止する貫通孔４４を有している。一対の挟持片５３間にリレー本体２１が挿入されると、一対の挟持片５３はリレー本体２１の２つの側面２４Ａ、２４Ｃに重ねられ、一対の突起２５が貫通孔４４に係止する。突起２５が貫通孔４４に係止することにより、リレー２が接続箱本体４に取り付けられる。 The pair of sandwiching pieces 53 are erected in a plate shape from the edge of the upper surface 40 a of the block main body 40, and have a through hole 44 in which the projection 25 of the relay main body 21 is locked. When the relay body 21 is inserted between the pair of sandwiching pieces 53, the pair of sandwiching pieces 53 overlaps the two side surfaces 24 A and 24 C of the relay body 21, and the pair of protrusions 25 are engaged with the through holes 44. The relay 2 is attached to the junction box body 4 by the projection 25 being locked in the through hole 44.

上述した実施形態によれば、第１係止部は、端子２６に設けられた貫通孔２６ａで構成され、相手方端子３Ａが、角筒部３５（筒状部）と、角筒部３５の内側に設けられたばね片３６と、を備え、角筒部３５には、当該角筒部３５の内側方向に突出して、貫通孔２６ａに係止する第２突出部５０（第１係止受け部）が設けられている。相手方端子３Ａは、端子２６に電気接続されるばね片３６と、端子２６に係止する第２突出部５０（第１係止受け部）と、が別々に設けられている。よって、相手方端子３Ａに抜ける方向の負荷が加えられた際に、この負荷を第２突出部５０が受け止めることにより、ばね片３６にこの負荷がかからないので、ばね片３６の接圧が下がるのを防止でき、相手方端子３Ａと端子２６との電気接続を安定させることができる。また、第２突出部５０は、角筒部３５の天壁３４から内側方向に突出して形成され、角筒部３５から外側に突出していないので、第２突出部５０が他の部品に引っ掛かるのを防止できる。 According to the embodiment described above, the first locking portion is configured by the through hole 26 a provided in the terminal 26, and the counterpart terminal 3 A includes the rectangular tube portion 35 (cylindrical portion) and the inside of the rectangular tube portion 35. And a second projecting portion 50 (first latch receiving portion) that projects inwardly of the rectangular tube portion 35 and engages with the through hole 26a. Is provided. The counterpart terminal 3 A is provided with a spring piece 36 electrically connected to the terminal 26 and a second projecting portion 50 (first locking receiving portion) that is locked to the terminal 26. Therefore, when a load in the direction of coming out to the counterpart terminal 3A is applied, the load is not applied to the spring piece 36 by the second projecting portion 50 receiving this load, so that the contact pressure of the spring piece 36 is reduced. The electrical connection between the counterpart terminal 3A and the terminal 26 can be stabilized. Moreover, since the 2nd protrusion part 50 protrudes inward from the top wall 34 of the square cylinder part 35, and does not protrude outside from the square cylinder part 35, the 2nd protrusion part 50 is caught in another component. Can be prevented.

また、第２突出部５０は、角筒部３５の天壁３４から内側方向に突出して形成されているので、端子２６が角筒部３５内に挿入されると、第２突出部５０とばね片３６とで互いに逆方向から端子２６を挟むようにでき、これにより、第２突出部５０の貫通孔２６ａへの係止状態と、ばね片３６及び端子２６の電気接続状態とを、より一層安定させることができる。 Further, since the second projecting portion 50 is formed so as to project inward from the top wall 34 of the square tube portion 35, when the terminal 26 is inserted into the square tube portion 35, the second projecting portion 50 and the spring are formed. The terminal 26 can be sandwiched between the pieces 36 from opposite directions, whereby the engagement state of the second protrusion 50 to the through hole 26a and the electrical connection state of the spring piece 36 and the terminal 26 are further increased. It can be stabilized.

なお、上述した実施形態では、リレー本体２１は一対の突起２５を有しているが、本発明はこれに限ったものではなく、リレー本体２１は少なくとも１つの突起２５を有していればよい。 In the above-described embodiment, the relay body 21 has a pair of protrusions 25. However, the present invention is not limited to this, and the relay body 21 only needs to have at least one protrusion 25. .

また、上述した実施形態では、貫通孔４４は周壁４２又は挟持片５３を貫通しているが、本発明はこれに限ったものではなく、貫通孔４４は突起２５が嵌る凹部であってもよい。 In the above-described embodiment, the through hole 44 penetrates the peripheral wall 42 or the sandwiching piece 53. However, the present invention is not limited to this, and the through hole 44 may be a recess into which the protrusion 25 is fitted. .

また、上述した実施形態では、複数のリレー２と、前記複数のリレー２が収容される複数のブロック４６を有する接続箱本体４、４Ａと、を備えた電気接続箱１、１Ａとを備えた構成であるが、本発明はこれに限ったものではなく、電気接続箱が、１つのリレー２と、１つのリレー２が収容される１つのブロック４６を有する接続箱本体と、を備えた構成であってもよい。 Moreover, in embodiment mentioned above, the electrical connection box 1 and 1A provided with the some relay 2 and the junction box main bodies 4 and 4A which have the some block 46 in which the said some relay 2 is accommodated were provided. Although it is a structure, this invention is not restricted to this, The electrical connection box is the structure provided with the connection box main body which has the one relay 2 and the one block 46 in which the one relay 2 is accommodated. It may be.

また、上述した実施形態以外に本発明の電気接続箱は、「接続箱本体」が、枠状のフレームと、フレームの内側に組み付けられるカセットブロックと、で構成されてもよい。その場合、カセットブロックは１つまたは複数のブロック４６を備えていればよい。上記フレームには、アッパーカバー及びロアカバーが取り付けられる。 In addition to the embodiment described above, in the electrical junction box of the present invention, the “junction box body” may be composed of a frame-shaped frame and a cassette block assembled inside the frame. In that case, the cassette block only needs to include one or more blocks 46. An upper cover and a lower cover are attached to the frame.

また、上述した実施形態では、電気部品としてリレー２が用いられているが、本発明はこれに限ったものではなく、電気部品としてヒューズが用いられてもよい。 In the embodiment described above, the relay 2 is used as an electrical component. However, the present invention is not limited to this, and a fuse may be used as the electrical component.

また、前述した実施形態は本発明の代表的な形態を示したに過ぎず、本発明は、実施形態に限定されるものではない。即ち、本発明の骨子を逸脱しない範囲で種々変形して実施することができる。 Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

１、１Ａ電気接続箱
２リレー（電気部品）
３、３Ａ相手方端子
４、４Ａ接続箱本体
２１リレー本体（部品本体）
２５突起（第２係止部）
２６端子
２６ａ貫通孔（第１係止部）
３４天壁（一つの壁）
３４ａ貫通孔
３５角筒部（筒状部）
３６ばね片
３９第１突出部（第１係止受け部）
４２周壁
４３一対のスリット
４４貫通孔（第２係止受け部）
５０第２突出部（第１係止受け部）
Ｙ挿入方向 1, 1A Electrical junction box 2 Relay (electrical parts)
3, 3A Mating terminal 4, 4A Junction box body 21 Relay body (component body)
25 Protrusion (second locking part)
26 Terminal 26a Through hole (first locking part)
34 Top wall (one wall)
34a Through-hole 35 Square tube portion (tubular portion)
36 Spring piece 39 1st protrusion part (1st latching receiving part)
42 Peripheral walls 43 A pair of slits 44 Through holes (second locking receiving portions)
50 2nd protrusion part (1st latching receiving part)
Y Insertion direction

Claims

An electrical component having a component body and a plate-like terminal protruding from the component body;
A counterpart terminal connected to the terminal;
In the electrical junction box comprising the junction box main body in which the terminals connected to each other and the counterpart terminal are accommodated,
The terminal is provided with a first locking portion,
The counterpart terminal is provided with a first locking receiving portion that locks to the first locking portion,
When the first locking receiving portion is locked to the first locking portion, the counterpart terminal is attached to the terminal ,
The first locking portion is a through hole provided in the terminal;
The counterpart terminal is provided inside the cylindrical portion into which the terminal is inserted, and urges the terminal inserted into the cylindrical portion toward one wall of the cylindrical portion. And a spring piece
The spring piece is provided with the first locking receiving portion protruding toward the one wall,
The electrical connection box , wherein the first locking receiving portion is locked to the first locking portion and the through hole provided in the one wall .

The component body is provided with a second locking portion,
The connection box main body is provided with a second locking receiving portion for locking to the second locking portion,
The electrical junction box according to claim 1, wherein the electrical component is attached to the junction box main body by the second latching portion being latched to the second latch receiving portion.

The connection box body is provided with a peripheral wall surrounding the component body,
The second locking portion of the component body is a protrusion provided on the outer surface of the component body;
The second latch receiving portion of the junction box body is a recess provided in the inner surface of the peripheral wall or a through hole provided in the peripheral wall;
A pair of slits extending in the insertion direction of the electrical component into the junction box body and having a notched edge of the peripheral wall are provided on both sides of the recess or the through hole. Item 3. An electrical junction box.

The first locking portion is constituted by a through hole provided in the terminal,
The counterpart terminal is provided inside the cylindrical portion into which the terminal is inserted, and urges the terminal inserted into the cylindrical portion toward one wall of the cylindrical portion. A spring piece, and the cylindrical portion is provided with the first locking receiving portion that protrudes inward of the cylindrical portion and locks to the first locking portion. The electrical junction box according to any one of claims 1 to 3, wherein the electrical junction box is characterized.

The electrical connection box according to claim 4, wherein the first locking receiving portion is formed by being cut and raised from the one wall of the cylindrical portion and projecting inward from the one wall. .