JP4718925B2

JP4718925B2 - Electrical junction box

Info

Publication number: JP4718925B2
Application number: JP2005219127A
Authority: JP
Inventors: 広明山田; 正弘和田; 佳彦中浜; 貴典河合
Original assignee: Toyota Motor Corp; Yazaki Corp
Current assignee: Toyota Motor Corp; Yazaki Corp
Priority date: 2005-07-28
Filing date: 2005-07-28
Publication date: 2011-07-06
Anticipated expiration: 2025-07-28
Also published as: JP2007037340A

Description

本発明は、移動体としての自動車などに搭載される電気接続箱に関する。 The present invention relates to an electrical junction box mounted on an automobile or the like as a moving body.

移動体としての自動車には、一般に、ヘッドランプ及びテールランプなどのランプ類、スタータモータ及びエアコンディショナ用のモータ等のモータ類などの多種多様な電子機器が搭載されている。 In general, automobiles as moving bodies are equipped with various electronic devices such as lamps such as head lamps and tail lamps, motors such as motors for starter motors and air conditioners.

前述した多種多様な電子機器に電力を供給するために、前記自動車は、種々のジャンクションブロックを適宜箇所に配置してきた。前記ジャンクションブロックは、多数のヒューズやリレー等の各種の電気回路ユニットを集約して構成されたものが提案されている。 In order to supply electric power to the various electronic devices described above, the automobile has been provided with various junction blocks where appropriate. The junction block has been proposed in which various electric circuit units such as fuses and relays are aggregated.

なお、ジャンクションブロックは、ヒューズ、リレー、ブスバーなどを有することもあることから、ヒューズブロック、リレーボックス、又は総称して電気接続箱とも呼ばれる。本明細書では、前述したヒューズブロック、リレーボックス、ジャンクションブロックを、総称して以下電気接続箱と呼ぶ。 Note that the junction block may include a fuse, a relay, a bus bar, and the like, and thus is also referred to as a fuse block, a relay box, or an electrical connection box. In the present specification, the above-described fuse block, relay box, and junction block are collectively referred to as an electrical connection box.

前述した従来から提案されてきた電気接続箱は、外郭を形成する箱本体と、箱本体に取り付けられるカバー部材などを備えている。箱本体は、上面に前述したリレー、ヒューズやヒュージブルリンクなどの電気部品が装着される装着部を複数設けた本体部と、該本体部を収容するカバー部とを備えている。また、本体部の下面には、前述した自動車に配索されるワイヤハーネスのコネクタが嵌合する。さらに、本体部は、前述した電気部品とワイヤハーネスなどの端子金具とを予め定められたパターンにしたがって接続するバスバなどを収容している。カバー部は、本体部の上面を覆う。 The above-described electrical junction box that has been proposed conventionally includes a box body that forms an outer shell, a cover member that is attached to the box body, and the like. The box body includes a main body portion provided with a plurality of mounting portions on the upper surface where electrical components such as the relays, fuses and fusible links described above are mounted, and a cover portion for housing the main body portions. Moreover, the connector of the wire harness routed by the motor vehicle mentioned above fits in the lower surface of a main-body part. Furthermore, the main body contains a bus bar or the like for connecting the above-described electrical component and a terminal fitting such as a wire harness according to a predetermined pattern. A cover part covers the upper surface of a main-body part.

カバー部材は、ゴムなどの弾性変形自在な弾性材料で構成されている。カバー部材は、箱本体のカバー部に取り付けられると、前述したワイヤハーネスのコネクタなどを覆う。 The cover member is made of an elastic material that can be elastically deformed, such as rubber. When the cover member is attached to the cover part of the box body, the cover member covers the connector of the wire harness described above.

前述した電気接続箱は、箱本体のカバー部と、カバー部材とを互いに固定するために、立設片と、圧入受け部とを備えている。立設片は、カバー部材の箱本体寄りの縁から前記箱本体に向かって立設している。圧入受け部は、筒状に形成されているとともに、箱本体のカバー部のカバー部材寄りの縁部に設けられている。圧入受け部は、カバー部材寄りの端部が開口しかつカバー部材から離れた側の端部が塞がれている。 The electric junction box described above includes a standing piece and a press-fitting receiving part in order to fix the cover part of the box body and the cover member to each other. The standing piece is erected from the edge of the cover member near the box body toward the box body. The press-fit receiving part is formed in a cylindrical shape and is provided at an edge part of the cover part of the box body near the cover member. The press-fitting receiving portion is open at the end near the cover member and is closed at the end away from the cover member.

圧入受け部内に立設片が圧入されることで、カバー部材は、箱本体のカバー部に取り付けられる。カバー部材が箱本体のカバー部に取り付けられると、カバー部材とカバー部との間が水密に保たれ、カバー部材とカバー部との間から箱本体則ち電気接続箱の内側に水などの液体が浸入することが規制される。 The cover member is attached to the cover portion of the box body by press-fitting the standing piece into the press-fitting receiving portion. When the cover member is attached to the cover part of the box body, the space between the cover member and the cover part is kept watertight, and liquid such as water is placed between the cover member and the cover part inside the box body, that is, inside the electrical junction box. Intrusion is regulated.

しかしながら、前述した従来から提案されてきた電気接続箱は、立設片を圧入受け部内に圧入して、カバー部則ち箱本体にカバー部材を取り付けているため、立設片を圧入受け部内に圧入すると、該圧入受け部が膨張する方向に弾性変形することがあった。圧入受け部が膨張すると、圧入受け部と立設片との間を水密に保つことが困難となる。この場合、勿論、カバー部材とカバー部との間から箱本体則ち電気接続箱の内側に水などの液体が浸入してしまう。 However, the electrical junction box that has been proposed in the prior art presses the standing piece into the press-fitting receiving part and attaches the cover member to the cover body, that is, the box body. When press-fitting, the press-fitting receiving part may be elastically deformed in the direction of expansion. When the press-fitting receiving part expands, it becomes difficult to keep water tight between the press-fitting receiving part and the standing piece. In this case, of course, liquid such as water enters the box body, that is, the inside of the electrical junction box from between the cover member and the cover portion.

したがって、本発明の目的は、弾性材料で構成されたカバー部材と箱本体との間を確実に水密に保つことができる電気接続箱を提供することにある。 Accordingly, an object of the present invention is to provide an electrical junction box that can reliably keep watertight between a cover member made of an elastic material and a box body.

上記課題を解決し目的を達成するために、請求項１に記載の電気接続箱は、電気部品が装着される箱本体と、弾性材料で構成され、かつ前記箱本体に取り付けられるとともに、前記箱本体に取り付けられると該箱本体との間を水密に保つカバー部材と、を備えた電気接続箱において、前記箱本体と前記カバー部材とのうち一方は、他方に向かって立設した立設片を備え、前記箱本体と前記カバー部材とのうち他方は、前記立設片が圧入される圧入受け部を備え、前記圧入受け部よりも前記箱本体と前記カバー部材とのうち他方の内側に配置されて、前記立設片が前記圧入受け部内に圧入された際に、当該圧入受け部に当接して、前記圧入受け部が前記他方の内側に向かって変形することを規制する変形規制部を備え、前記立設片には、該立設片の外表面に開口してスリットが設けられ、前記立設片が前記圧入受け部内に圧入された後、前記スリット内に圧入される圧入部材を備えたことを特徴としている。 In order to solve the above problems and achieve the object, an electrical junction box according to claim 1 is composed of a box body to which electrical components are mounted, an elastic material, and attached to the box body. An electrical connection box comprising a cover member that is watertight when attached to the main body, wherein one of the box main body and the cover member is erected toward the other The other of the box body and the cover member includes a press-fit receiving portion into which the standing piece is press-fitted, and is located inside the other of the box body and the cover member with respect to the press-fit receiving portion. A deformation restricting portion that is disposed and restricts deformation of the press-fit receiving portion in contact with the press-fit receiving portion when the standing piece is press-fitted into the press-fit receiving portion. comprising a, in the standing piece, upstanding set Of opened to the outer surface slit is provided, after the standing piece is press-fitted into the press-fit receiving portion is characterized by having a press-fit member is press-fitted into the slit.

請求項２に記載の電気接続箱は、請求項１に記載の電気接続箱において、前記箱本体は、前記電気部品が装着される本体部と、該本体部を収容するとともに、前記立設片と前記圧入受け部とのうち一方が設けられたカバー部と、を備えたことを特徴としている。 The electrical junction box according to claim 2 is the electrical junction box according to claim 1 , wherein the box body accommodates the body portion on which the electrical component is mounted, the body portion, and the standing piece. And a cover part provided with one of the press-fitting receiving part.

請求項３に記載の電気接続箱は、請求項２に記載の電気接続箱において、前記圧入受け部が、前記カバー部に備えられ、前記立設片が、前記カバー部材に備えられ、前記変形規制部は、前記本体部に設けられたことを特徴としている。 The electrical junction box according to claim 3 is the electrical junction box according to claim 2 , wherein the press-fitting receiving portion is provided in the cover portion, the standing piece is provided in the cover member, and the deformation is performed. The restricting portion is provided in the main body portion.

請求項４に記載の電気接続箱は、請求項３に記載の電気接続箱において、前記変形規制部は、前記本体部の外表面から凸に形成され、かつ前記圧入受け部より前記カバー部の内側に配置されたことを特徴としている。 The electrical junction box according to claim 4 is the electrical junction box according to claim 3 , wherein the deformation restricting portion is formed so as to protrude from the outer surface of the main body portion, and the cover portion is formed from the press-fitting receiving portion. It is characterized by being placed inside.

請求項５に記載の電気接続箱は、請求項１乃至請求項４のうちいずれか一項に記載の電気接続箱において、前記圧入部材は、前記スリット内に圧入される圧入部と、この圧入部の一端部から凸でかつ前記圧入部が前記スリット内に圧入されると前記立設片の前記外表面に重なって前記立設片の外側に露出する操作部と、を備えたことを特徴としている。
請求項６に記載の電気接続箱は、請求項１ないし請求項５のうちいずれか一項に記載の電気接続箱において、前記立設片に、前記圧入受け部の内面との間を水密に保つリップが設けられていることを特徴としている。 The electrical junction box according to claim 5 is the electrical junction box according to any one of claims 1 to 4 , wherein the press-fitting member includes a press-fit portion that is press-fitted into the slit, and the press-fit portion. And an operation portion that is convex from one end of the portion and that is exposed to the outside of the standing piece when it overlaps with the outer surface of the standing piece when the press-fitting portion is press-fitted into the slit. It is said.
The electrical junction box according to claim 6 is the electrical junction box according to any one of claims 1 to 5 , wherein the standing piece is watertight between an inner surface of the press-fitting receiving portion. It is characterized by a retaining lip.

請求項１に記載の本発明の電気接続箱によれば、変形規制部が、立設片が圧入された圧入受け部が変形することを規制するので、立設片と圧入受け部との間を水密に保つことができる。 According to the electrical junction box of the first aspect of the present invention, the deformation restricting portion restricts deformation of the press-fitting receiving portion into which the standing piece is press-fitted, so that the space between the standing piece and the press-fitting receiving portion is limited. Can be kept watertight.

また、圧入受け部が内側に向かって変形することを変形規制部が規制するので、立設片と圧入受け部との間を確実に水密に保つことができる。また、立設片のスリット内に圧入部材を圧入するので、圧入受け部内で立設片が変形することを防止できる。 Further, since the deformation restricting portion restricts the press-fitting receiving portion from being deformed inward, the space between the standing piece and the press-fitting receiving portion can be reliably kept watertight. Further, since the press-fitting member is press-fitted into the slit of the standing piece, it is possible to prevent the standing piece from being deformed in the press-fitting receiving portion.

請求項２に記載の本発明の電気接続箱によれば、箱本体が、本体部と、立設片と圧入受け部とのうち一方が設けられたカバー部と、を備えている。このように、装着部が設けられた本体部と、立設片と圧入受け部とのうち一方が設けられたカバー部と、に分割されているため、箱本体の成形が容易になる。 According to the electric junction box of the present invention as set forth in claim 2 , the box main body includes the main body portion and the cover portion provided with one of the standing piece and the press-fitting receiving portion. As described above, since the main body portion provided with the mounting portion and the cover portion provided with one of the standing piece and the press-fitting receiving portion are divided, the box main body can be easily molded.

請求項３に記載の本発明の電気接続箱によれば、圧入受け部がカバー部に設けられ、立
設片がカバー部材に設けられているので、立設片を圧入受け部に圧入することで、箱本体にカバー部材を確実に取り付けることができる。 According to the electrical junction box of the present invention described in claim 3 , since the press-fitting receiving part is provided in the cover part and the standing piece is provided in the cover member, the standing piece is press-fitted into the press-fitting receiving part. Thus, the cover member can be securely attached to the box body.

また、変形規制部が、本体部に設けられている則ち立設片と圧入受け部とが設けられた部材とは別体の部材に設けられているので、圧入受け部が変形することを確実に規制できる。 In addition, since the deformation restricting portion is provided on a separate member from the member provided on the main body portion, that is, the member provided with the press-fitting receiving portion, the deformation of the press-fitting receiving portion is prevented. It can be regulated reliably.

請求項４に記載の本発明の電気接続箱によれば、変形規制部は、本体部の外表面から凸に形成されており、圧入受け部の内側に配置されているので、圧入受け部が変形することを確実に防止できる。 According to the electric junction box of the present invention as set forth in claim 4 , the deformation restricting portion is formed so as to protrude from the outer surface of the main body portion, and is disposed inside the press-fit receiving portion. Deformation can be reliably prevented.

請求項１に記載の電気接続箱は、立設片と圧入受け部との間を水密に保つことができるので、カバー部材と箱本体との間を確実に水密に保つことができ、これらの間から水などの液体が箱本体内に浸入することを防止できる。 Since the electrical junction box according to claim 1 can keep watertight between the standing piece and the press-fitting receiving portion, it can reliably keep watertight between the cover member and the box body. It is possible to prevent liquids such as water from entering the box body from between.

また、立設片と圧入受け部との間を確実に水密に保つことができるので、カバー部材と箱本体との間をより確実に水密に保つことができ、これらの間から水などの液体が箱本体内に浸入することを確実に防止できる。また、圧入受け部内で立設片が変形することを防止できるので、立設片と圧入受け部の内面とが確実に密着する。したがって、立設片と圧入受け部との間則ちカバー部材と箱本体との間を確実に水密に保つことができる。 In addition, since the space between the standing piece and the press-fitting receiving portion can be reliably kept watertight, the space between the cover member and the box body can be more reliably kept watertight. Can be reliably prevented from entering the box body. In addition, since the standing piece can be prevented from being deformed in the press-fitting receiving part, the standing piece and the inner surface of the press-fitting receiving part are securely in close contact with each other. Therefore, the space between the cover member and the box main body can be reliably kept watertight between the standing piece and the press-fitting receiving portion.

請求項２に記載の電気接続箱は、電気部品が装着される本体部と、立設片と圧入受け部とのうち一方が設けられたカバー部と、に分割されているため、箱本体の成形が容易になる。このため、箱本体の寸法精度などを高精度に保つことができ、箱本体則ち電気接続箱の歩留まりを向上させることができる。また、箱本体の成形が容易になるので、箱本体則ち電気接続箱のコストを低減できる。 The electrical junction box according to claim 2 is divided into a main body portion on which electrical components are mounted and a cover portion provided with one of the standing piece and the press-fitting receiving portion. Molding becomes easy. For this reason, the dimensional accuracy of the box body can be kept high, and the yield of the box body, that is, the electrical junction box can be improved. Further, since the box body can be easily formed, the cost of the box body, that is, the electrical junction box can be reduced.

請求項３に記載の電気接続箱は、圧入受け部がカバー部に設けられ、立設片がカバー部材に設けられているので、立設片を圧入受け部に圧入することで、箱本体にカバー部材を確実に取り付けることができる。 In the electrical junction box according to claim 3 , since the press-fitting receiving part is provided in the cover part and the standing piece is provided in the cover member, the press-fitting the standing piece into the press-fitting receiving part is performed on the box body. The cover member can be securely attached.

また、変形規制部が、本体部に設けられている則ち立設片と圧入受け部とが設けられた部材とは別体の部材に設けられているので、圧入受け部が変形することを確実に規制できる。このため、立設片と圧入受け部との間をより確実に水密に保つことができ、カバー部材と箱本体との間をより一層確実に水密に保つことができ、これらの間から水などの液体が箱本体内に浸入することをより確実に防止できる。 In addition, since the deformation restricting portion is provided on a separate member from the member provided on the main body portion, that is, the member provided with the press-fitting receiving portion, the deformation of the press-fitting receiving portion is prevented. It can be regulated reliably. For this reason, the space between the standing piece and the press-fitting receiving portion can be more reliably kept watertight, and the space between the cover member and the box body can be more reliably kept watertight. Can be more reliably prevented from entering the box body.

請求項４に記載の電気接続箱は、変形規制部が、本体部の外表面から凸に形成されており、圧入受け部の内側に配置されているので、圧入受け部が変形することを確実に防止できる。このため、立設片と圧入受け部との間をより一層確実に水密に保つことができ、カバー部材と箱本体との間をより一層確実に水密に保つことができ、これらの間から水などの液体が箱本体内に浸入することをより一層確実に防止できる。 In the electrical junction box according to claim 4 , since the deformation restricting portion is formed so as to protrude from the outer surface of the main body portion and is disposed inside the press-fit receiving portion, it is ensured that the press-fit receiving portion is deformed. Can be prevented. For this reason, the space between the standing piece and the press-fitting receiving portion can be more reliably kept watertight, and the space between the cover member and the box body can be more reliably kept watertight. It is possible to more reliably prevent liquid such as from entering the box body.

以下、本発明の一実施形態にかかる電気接続箱を、図１ないし図３に基づいて説明する。本実施形態にかかる図１に示す電気接続箱１は、移動体としての自動車に搭載されるとともに、該自動車の電源と、自動車に搭載される各種の電子機器との間に配置される。 Hereinafter, an electrical junction box according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. The electrical connection box 1 shown in FIG. 1 according to this embodiment is mounted on a vehicle as a moving body, and is disposed between a power source of the vehicle and various electronic devices mounted on the vehicle.

電気接続箱１は、図１ないし図３に示すように、箱本体２と、図示しない配線盤と、カバー部材としてのロアカバー３と、圧入部材４と、変形規制部としての変形規制突起５（図３に示す）とを備えている。 As shown in FIGS. 1 to 3, the electrical connection box 1 includes a box body 2, a wiring board (not shown), a lower cover 3 as a cover member, a press-fitting member 4, and a deformation restriction projection 5 ( 3).

箱本体２は、図２及び図３に示すように、本体部６（図３に示す）と、カバー部としてのアッパカバー７とを備えている。本体部６は、硬質な（変形しにくい、殆ど変形しない）絶縁性の合成樹脂で構成され、周知の射出成形により成形される。本体部６は、複数の外壁８により、箱状に形成されている。本体部６の図２の上側に位置する上面（表面に相当）６ａには、図示しないリレー、ヒューズなどの電気部品が装着される装着部が複数設けられている。また、本体部６の上面６ａの裏側に位置する下面６ｂには、自動車に配索される図示しないワイヤハーネスのコネクタが嵌合する。 As shown in FIGS. 2 and 3, the box body 2 includes a body portion 6 (shown in FIG. 3) and an upper cover 7 as a cover portion. The main body 6 is made of a hard (not easily deformed, hardly deformed) insulating synthetic resin, and is molded by a well-known injection molding. The main body 6 is formed in a box shape by a plurality of outer walls 8. On the upper surface (corresponding to the surface) 6a located on the upper side of the main body 6 in FIG. Further, a connector of a wire harness (not shown) that is routed in the automobile is fitted to the lower surface 6b that is located on the back side of the upper surface 6a of the main body 6.

ワイヤハーネスは、複数の電線と、コネクタなどを備えている。電線は、導電性の芯線と、該芯線を被覆する被覆部とを備えた所謂被覆電線である。少なくとも一本の電線は、前述した電源と接続しており、該電源から電力が供給される。他の電線は、前述した電子機器と接続しており、該電子機器に前述した電源からの電力を供給する。コネクタは、電線の芯線に接続された端子金具と、該端子金具を収容する絶縁性のコネクタハウジングとを備えている。 The wire harness includes a plurality of electric wires and connectors. The electric wire is a so-called covered electric wire including a conductive core wire and a covering portion that covers the core wire. At least one electric wire is connected to the power source described above, and power is supplied from the power source. The other electric wires are connected to the above-described electronic device, and supply electric power from the above-described power source to the electronic device. The connector includes a terminal fitting connected to the core of the electric wire and an insulating connector housing that houses the terminal fitting.

アッパカバー７は、硬質な（変形しにくい、殆ど変形しない）絶縁性の合成樹脂で構成され、周知の射出成形により成形される。アッパカバー７は、箱状に形成されたカバー本体１１と、圧入受け部１２とを備えている。カバー本体１１は、複数の外壁１３により箱状に形成されている。カバー本体１１則ちアッパカバー７は、本体部６を収容する。 The upper cover 7 is made of a hard (not easily deformed, hardly deformed) insulating synthetic resin, and is formed by a well-known injection molding. The upper cover 7 includes a cover main body 11 formed in a box shape and a press-fit receiving portion 12. The cover body 11 is formed in a box shape by a plurality of outer walls 13. The cover body 11, that is, the upper cover 7 accommodates the body portion 6.

圧入受け部１２は、カバー本体１１の外壁１３のロアカバー３寄りの縁部の全周に設けられている。圧入受け部１２は、外壁１３から立設した立設壁２２と該立設壁２２の箱本体２の内外に位置する両縁からロアカバー３に向かって立設した一対の平行壁２３とを備えて、ロアカバー３側が開口しかつロアカバー３から離れた側が塞がれた有底筒状に形成されている。立設壁２２は、外壁１３に対して直交している。平行壁２３は、外壁１３と平行である。また、一対の平行壁２３のうち外側に位置する一方の平行壁２３には、係止孔２４が複数設けられている。 The press-fit receiving portion 12 is provided on the entire circumference of the edge portion of the outer wall 13 of the cover body 11 near the lower cover 3. The press-fit receiving portion 12 includes a standing wall 22 erected from the outer wall 13 and a pair of parallel walls 23 erected from both edges of the standing wall 22 located inside and outside the box body 2 toward the lower cover 3. Thus, the bottom cover 3 is formed in a bottomed cylindrical shape which is open on the side and closed on the side away from the lower cover 3. The standing wall 22 is orthogonal to the outer wall 13. The parallel wall 23 is parallel to the outer wall 13. In addition, a plurality of locking holes 24 are provided in one parallel wall 23 located on the outer side of the pair of parallel walls 23.

配線盤は、導電性のバスバと、絶縁板などを備えている。バスバは、導電性の板金に打ち抜き加工などのプレス加工が施されて得られる。複数のバスバは、互いに重ねられている。絶縁板は、互いに重ねられたバスバ間などに配され、バスバ同士が意図しない箇所で相互に電気的に接続すること即ち短絡することを防止するとともに、バスバを位置決めしている。 The wiring board includes a conductive bus bar and an insulating plate. The bus bar is obtained by subjecting a conductive sheet metal to press working such as punching. The plurality of bus bars are overlapped with each other. The insulating plates are arranged between the bus bars stacked on each other, and prevent the bus bars from being electrically connected to each other at an unintended location, that is, short-circuited, and position the bus bars.

配線盤は、箱本体２の本体部６内に収容されると、リレー、ヒューズなどの箱本体２の本体部６に装着された電気部品と、本体部６の下面６ｂにコネクタが嵌合したワイヤハーネスの電線とを予め定められたパターンにしたがって、互いに電気的に接続する。配線盤は、前述した電源からの電力を、前述したリレー、ヒューズを介して前述した電子機器に供給するパターンにしたがって、前述した電気部品とワイヤハーネスの電線とを接続する。 When the wiring board is accommodated in the main body 6 of the box main body 2, the connector is fitted to the electrical parts mounted on the main body 6 of the box main body 2 such as relays and fuses, and the lower surface 6 b of the main body 6. The wires of the wire harness are electrically connected to each other according to a predetermined pattern. The wiring board connects the above-described electrical components and the wires of the wire harness according to a pattern in which power from the above-described power supply is supplied to the above-described electronic device via the above-described relay and fuse.

ロアカバー３は、ゴムなどの弾性材料で構成されており、周知の射出成形により成形される。ロアカバー３は、カバー本体１４と、立設片１５とを備えている。カバー本体１４は、複数の外壁１６により、箱状に形成されている。立設片１５は、カバー本体１４の外壁１６のアッパカバー７寄りの縁部の全周に設けられている。立設片１５は、前記カバー本体１４の外壁１６のアッパカバー７寄りの縁部からアッパカバー７則ち箱本体２に向かって立設している。立設片１５は、前述した縁部からアッパカバー７則ち箱本体２に向かって立設した板状に形成されており、アッパカバー７から離れた側の端部が前述したカバー本体１４の外壁１６に連なっている。 The lower cover 3 is made of an elastic material such as rubber and is formed by a well-known injection molding. The lower cover 3 includes a cover body 14 and a standing piece 15. The cover body 14 is formed in a box shape by a plurality of outer walls 16. The standing piece 15 is provided on the entire periphery of the edge portion of the outer wall 16 of the cover body 14 near the upper cover 7. The standing piece 15 stands from the edge of the outer wall 16 of the cover body 14 near the upper cover 7 toward the upper cover 7, that is, the box body 2. The standing piece 15 is formed in a plate-like shape standing from the above-described edge portion toward the upper cover 7, that is, the box body 2, and an end portion on the side away from the upper cover 7 is the above-described cover body 14. It continues to the outer wall 16.

また、立設片１５には、スリット１７が形成されている。スリット１７は、立設片１５の外表面のうちアッパカバー７則ち箱本体２から離れた側に位置する外表面に開口している。則ち、スリット１７は、後述するように立設片１５を圧入受け部１２内に圧入する方向（圧入される際に移動する方向、以下圧入方向と呼ぶ）の立設片１５の後ろ側に位置する外表面に開口している。スリット１７は、立設片１５の前述した圧入方向に対し直交する方向に沿って互いに裏側に位置する一対の外表面に開口している。 A slit 17 is formed in the standing piece 15. The slit 17 opens on the outer surface of the standing piece 15 located on the side away from the upper cover 7, that is, the box body 2. That is, as will be described later, the slit 17 is provided behind the standing piece 15 in the direction in which the standing piece 15 is press-fitted into the press-fitting receiving portion 12 (the direction in which the standing piece 15 moves when pressed, hereinafter referred to as the press-fitting direction). Open to the located outer surface. The slits 17 are opened on a pair of outer surfaces located on the back side along the direction orthogonal to the aforementioned press-fitting direction of the standing piece 15.

また、スリット１７は、前述したアッパカバー７に向かうにしたがって徐々に幅が狭くなるように形成されている。スリット１７は、立設片１５のアッパカバー７則ち箱本体２寄りの外表面には開口していない。さらに、スリット１７は、立設片１５の全周に設けられている。 Further, the slit 17 is formed so that the width is gradually narrowed toward the upper cover 7 described above. The slit 17 is not opened on the outer surface of the standing piece 15 near the upper cover 7, that is, the box body 2. Further, the slit 17 is provided on the entire circumference of the standing piece 15.

前述した構成の立設片１５は、圧入受け部１２内に圧入されて、該圧入受け部１２と嵌合する。すると、立設片１５が圧入受け部１２と嵌合することで、ロアカバー３をアッパカバー７則ち箱本体２に固定する（取り付ける）。ロアカバー３とアッパカバー７則ち箱本体２とが互いに取り付けられると、ロアカバー３とアッパカバー７との間が水密に保たれる。さらに、立設片１５には、圧入受け部１２内に圧入された際に、前述した係止孔２４と重なる係止孔２５が複数設けられている。 The standing piece 15 having the above-described configuration is press-fitted into the press-fit receiving portion 12 and is fitted to the press-fit receiving portion 12. Then, the lower cover 3 is fixed to (attached to) the upper cover 7, that is, the box body 2 by fitting the standing piece 15 with the press-fitting receiving portion 12. When the lower cover 3 and the upper cover 7, that is, the box body 2 are attached to each other, the space between the lower cover 3 and the upper cover 7 is kept watertight. Further, the standing piece 15 is provided with a plurality of locking holes 25 that overlap with the locking holes 24 described above when pressed into the press-fitting receiving portion 12.

圧入部材４は、硬質な（変形しにくい、殆ど変形しない）絶縁性の合成樹脂で構成され、周知の射出成形により成形される。圧入部材４は、図２に示すように、枠状に形成された圧入部１８と、操作部１９とを備えている。圧入部１８は、平板状に形成されている。圧入部１８は、スリット１７内に圧入される。 The press-fitting member 4 is made of a hard (not easily deformed, hardly deformed) insulating synthetic resin, and is formed by a well-known injection molding. Press-fitting member 4, as shown in FIG. 2, a press-fit portion 18 formed in a frame shape, and an operation unit 19. The press-fit portion 18 is formed in a flat plate shape. The press-fitting portion 18 is press-fitted into the slit 17.

操作部１９は、圧入部１８の一端部から凸に形成され、かつ前述した圧入方向に対し直交する方向に沿って直線状に延びている。操作部１９は、圧入部１８の全周に設けられている。操作部１９は、圧入部１８がスリット１７内に圧入されると、立設片１５の前述した外表面に重なってスリット１７則ち立設片１５の外側に露出する。操作部１９は、立設片１５の外側に露出することで、圧入部１８をスリット１７外に抜き取ることを容易にしている。 The operation part 19 is formed in a convex shape from one end of the press-fitting part 18 and extends linearly along a direction perpendicular to the press-fitting direction described above. The operation unit 19 is provided on the entire circumference of the press-fitting unit 18. When the press-fitting portion 18 is press-fitted into the slit 17, the operation portion 19 is exposed to the slit 17, that is, the outside of the standing piece 15, overlapping the outer surface of the standing piece 15. The operation portion 19 is exposed to the outside of the standing piece 15, thereby facilitating extraction of the press-fit portion 18 out of the slit 17.

リップ２０は、立設片１５の外表面から凸に形成されており、前述した圧入方向に対し直交する方向に沿って直線状に延在している。リップ２０は、立設片１５の全周に設けられている。リップ２０は、圧入受け部１２の内面と当接して、該圧入受け部１２の内面との間を水密に保つ。また、圧入部材４は、係止孔２５内を通って係止孔２４に係止可能な係止突起２６を複数備えている。 The lip 20 is formed so as to protrude from the outer surface of the upright piece 15 and extends linearly along a direction orthogonal to the press-fitting direction described above. The lip 20 is provided all around the standing piece 15 . The lip 20 is in contact with the inner surface of the press-fit receiving portion 12 to keep watertight between the inner surface of the press-fit receiving portion 12. The press-fitting member 4 includes a plurality of locking protrusions 26 that can pass through the locking holes 25 and can be locked to the locking holes 24.

前述した圧入部材４は、圧入部１８がスリット１７内に圧入されて、係止突起２６が係止孔２５内に侵入することで、圧入受け部１２内でスリット１７が狭くなる方向に立設片１５が変形することを規制する。圧入部材４は、圧入受け部１２内でスリット１７が狭くなる方向に立設片１５が変形することを規制することで、立設片１５と圧入受け部１２の内面とを互いに密着させて、これらの間を水密に保つ。さらに、圧入部材４は、係止突起２６が係止孔２５内を通って係止孔２４に係止することで、ロアカバー３を箱本体２のアッパカバー７に固定する。 The press-fitting member 4 described above is erected in a direction in which the slit 17 becomes narrower in the press-fitting receiving portion 12 when the press-fitting portion 18 is press-fitted into the slit 17 and the locking projection 26 enters the locking hole 25. The deformation of the piece 15 is restricted. The press-fitting member 4 restricts the standing piece 15 from being deformed in the direction in which the slit 17 is narrowed in the press-fitting receiving part 12, thereby bringing the standing piece 15 and the inner surface of the press-fitting receiving part 12 into close contact with each other. Keep water tight between them. Further, the press-fitting member 4 fixes the lower cover 3 to the upper cover 7 of the box body 2 by the locking projections 26 passing through the locking holes 25 and locking to the locking holes 24.

変形規制突起５は、箱本体２の本体部６の外壁８の外表面から凸に形成されている。則ち、変形規制突起５は、箱本体２の本体部６に設けられている。また、変形規制突起５は、アッパカバー７の圧入受け部１２より箱本体２の内側に位置する。さらに、変形規制突起５は、アッパカバー７内に本体部６を収容して、圧入受け部１２内に立設片１５を圧入した状態で、前述した立設片１５の圧入受け部１２への圧入方向に対して直交する方向に沿って、前記圧入受け部１２と並設される。このため、変形規制突起５は、圧入受け部１２の他方の平行壁２３が箱本体２内に向かって変位（変形）しようとしても、該他方の平行壁２３と干渉する。そして、変形規制突起５は、立設片１５が圧入受け部１２内に圧入された際に、該圧入受け部１２が箱本体２の内側に向かって変形することを規制する。則ち、変形規制突起５は、圧入受け部１２の変形を規制する。 The deformation restricting projection 5 is formed so as to protrude from the outer surface of the outer wall 8 of the main body 6 of the box main body 2. That is, the deformation restricting protrusion 5 is provided on the main body 6 of the box main body 2. Further, the deformation restricting projection 5 is positioned inside the box body 2 from the press-fit receiving portion 12 of the upper cover 7. Further, the deformation restricting projection 5 accommodates the main body portion 6 in the upper cover 7 and presses the standing piece 15 into the press-fit receiving portion 12, so that the above-described standing piece 15 is inserted into the press-fit receiving portion 12. Along with the press-fit receiving portion 12, the press-fit receiving portion 12 is arranged along a direction orthogonal to the press-fit direction. For this reason, even if the other parallel wall 23 of the press-fitting receiving portion 12 is displaced (deformed) toward the inside of the box body 2, the deformation restricting projection 5 interferes with the other parallel wall 23. The deformation restricting projection 5 restricts the press-fitting receiving part 12 from being deformed toward the inside of the box body 2 when the standing piece 15 is press-fitted into the press-fitting receiving part 12. In other words, the deformation restricting protrusion 5 restricts deformation of the press-fit receiving portion 12.

前述した電気接続箱１は、以下のように組み立てられる。まず、箱本体２内にバスバなどが配索された配線盤が収容されて、箱本体２の本体部６の上面６ａにリレーやヒューズなどの電気部品が装着される。そして、箱本体２の本体部６の下面６ｂ側にワイヤハーネスのコネクタが嵌合される。 The electrical junction box 1 described above is assembled as follows. First, a wiring board in which a bus bar or the like is routed is accommodated in the box body 2, and electrical components such as relays and fuses are mounted on the upper surface 6 a of the body portion 6 of the box body 2. And the connector of a wire harness is fitted by the lower surface 6b side of the main-body part 6 of the box main body 2. FIG.

その後、本体部６をアッパカバー７内に収容して、立設片１５を圧入受け部１２内に圧入して、アッパカバー７とロアカバー３とを互いに取り付ける。そして、立設片１５のスリット１７内に圧入部材４の圧入部１８を圧入する。そして、係止突起２６が、係止孔２５内を通って係止孔２４に係止する。こうして、前述した構成の電気接続箱１が組み立てられる。 Thereafter, the main body portion 6 is accommodated in the upper cover 7, the standing piece 15 is press-fitted into the press-fitting receiving portion 12, and the upper cover 7 and the lower cover 3 are attached to each other. Then, the press-fitting portion 18 of the press-fitting member 4 is press-fitted into the slit 17 of the standing piece 15. Then, the locking protrusion 26 is locked to the locking hole 24 through the locking hole 25. Thus, the electrical junction box 1 having the above-described configuration is assembled.

このような電気接続箱１は、自動車に搭載されて、電源などから供給される電力を、バスバ、リレー、ヒューズ、ワイヤハーネスの電線などを介して自動車の電子機器に供給する。 Such an electrical connection box 1 is mounted on an automobile and supplies electric power supplied from a power source or the like to an electronic device of the automobile via a bus bar, a relay, a fuse, an electric wire of a wire harness, or the like.

本実施形態の電気接続箱１によれば、変形規制突起５が、立設片１５が圧入された圧入受け部１２が変形することを規制するので、立設片１５と圧入受け部１２との間を水密に保つことができる。このため、ロアカバー３と箱本体２のアッパカバー７との間を確実に水密に保つことができ、これらの間から水などの液体が箱本体２内に浸入することを防止できる。 According to the electrical junction box 1 of the present embodiment, the deformation restricting projection 5 restricts the deformation of the press-fitting receiving part 12 into which the standing piece 15 is press-fitted, so that the standing piece 15 and the press-fitting receiving part 12 are deformed. The space can be kept watertight. For this reason, between the lower cover 3 and the upper cover 7 of the box body 2 can be reliably kept watertight, and liquid such as water can be prevented from entering the box body 2 from between these.

また、変形規制突起５が、圧入受け部１２が内側に変形することを規制するので、立設片１５と圧入受け部１２との間を確実に水密に保つことができる。したがって、ロアカバー３と箱本体２のアッパカバー７との間をより確実に水密に保つことができ、これらの間から水などの液体が箱本体２内に浸入することを確実に防止できる。 Further, since the deformation restricting projection 5 restricts the press-fitting receiving part 12 from being deformed inward, the space between the standing piece 15 and the press-fitting receiving part 12 can be reliably kept watertight. Therefore, the space between the lower cover 3 and the upper cover 7 of the box body 2 can be more reliably kept watertight, and liquid such as water can be reliably prevented from entering the box body 2 from between these.

箱本体２が、本体部６と、圧入受け部１２が設けられたアッパカバー７と、を備えている。このように、箱本体２が、リレーやヒューズなどが装着される本体部６と、圧入受け部１２が設けられたアッパカバー７とに分割されているため、成形が容易になる。 The box main body 2 includes a main body portion 6 and an upper cover 7 provided with a press-fit receiving portion 12. As described above, the box body 2 is divided into the main body portion 6 to which a relay, a fuse, and the like are attached, and the upper cover 7 provided with the press-fitting receiving portion 12, so that molding is facilitated.

このため、箱本体２の寸法精度などを高精度に保つことができ、箱本体２則ち電気接続箱１の歩留まりを向上させることができる。また、箱本体２の成形が容易になるので、箱本体２則ち電気接続箱１のコストを低減できる。 For this reason, the dimensional accuracy etc. of the box main body 2 can be maintained with high precision, and the yield of the box main body 2, that is, the electrical connection box 1 can be improved. Further, since the box body 2 can be easily formed, the cost of the box body 2, that is, the electrical junction box 1 can be reduced.

圧入受け部１２がアッパカバー７に設けられ、立設片１５がロアカバー３に設けられているので、立設片１５を圧入受け部１２に圧入することで、箱本体２にロアカバー３を確実に取り付けることができる。 Since the press-fit receiving part 12 is provided on the upper cover 7 and the standing piece 15 is provided on the lower cover 3, the lower cover 3 is securely attached to the box body 2 by press-fitting the standing piece 15 into the press-fit receiving part 12. Can be attached.

また、変形規制突起５が、本体部６に設けられている則ち立設片１５が設けられたロアカバー３と圧入受け部１２が設けられたアッパカバー７とは別体の部材に設けられているので、圧入受け部１２が変形することを確実に規制できる。このため、立設片１５と圧入受け部１２との間をより確実に水密に保つことができ、ロアカバー３と箱本体２との間をより一層確実に水密に保つことができ、これらの間から水などの液体が箱本体２内に浸入することをより確実に防止できる。 Further, the deformation restricting projection 5 is provided on a separate member from the lower cover 3 provided with the standing piece 15 provided on the main body 6 and the upper cover 7 provided with the press-fit receiving portion 12. Therefore, it is possible to reliably restrict the press-fitting receiving portion 12 from being deformed. For this reason, the space between the standing piece 15 and the press-fitting receiving portion 12 can be more reliably kept watertight, and the space between the lower cover 3 and the box body 2 can be more reliably kept watertight. It is possible to more reliably prevent liquid such as water from entering the box body 2.

変形規制突起５は、本体部６の外表面から凸に形成されており、圧入受け部１２の内側に配置されているので、圧入受け部１２が変形することを確実に防止できる。 Since the deformation restricting projection 5 is formed so as to protrude from the outer surface of the main body portion 6 and is disposed inside the press-fit receiving portion 12, it is possible to reliably prevent the press-fit receiving portion 12 from being deformed.

立設片１５のスリット１７内に圧入部材４を圧入するので、圧入受け部１２内で立設片１５が変形することを防止できる。このため、立設片１５と圧入受け部１２の内面とが確実に密着する。したがって、立設片１５と圧入受け部１２との間則ちロアカバー３と箱本体２との間を確実に水密に保つことができる。 Since the press-fitting member 4 is press-fitted into the slit 17 of the standing piece 15, it is possible to prevent the standing piece 15 from being deformed in the press-fitting receiving portion 12. For this reason, the standing piece 15 and the inner surface of the press-fitting receiving portion 12 are securely in close contact with each other. Accordingly, the space between the lower cover 3 and the box body 2 can be reliably kept watertight between the standing piece 15 and the press-fitting receiving portion 12.

また、立設片１５を圧入受け部１２内に圧入した後に、スリット１７内に圧入部材４の圧入部１８を圧入するので、立設片１５を圧入受け部１２内に圧入する際に、スリット１７が縮小するように立設片１５が変形自在となる。このため、立設片１５を圧入受け部１２に圧入しやすくなり、ロアカバー３を箱本体２に取り付けやすくなる。 Further, since the press-fitting portion 18 of the press-fitting member 4 is press-fitted into the slit 17 after press-fitting the standing piece 15 into the press-fitting receiving portion 12, the slit is provided when the standing piece 15 is press-fitted into the press-fitting receiving portion 12. The standing piece 15 can be deformed so that 17 is reduced. For this reason, it becomes easy to press-fit the standing piece 15 into the press-fit receiving portion 12, and the lower cover 3 is easily attached to the box body 2.

前述した実施形態では、箱本体２のアッパカバー７に圧入受け部１２を設け、ロアカバー３に立設片１５を設けている。しかしながら、本発明では、図４に示すように、箱本体２のアッパカバー７にロアカバー３に向かって立設した立設片１５を設け、ロアカバー３に圧入受け部１２を設けても良い。なお、図４に示す場合において、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。なお、図４に示す場合では、本体部６は、前述した外壁８の下縁より突出した突出片２１を備えている。図４に示す場合では、前述した突出片２１の外表面に前述した変形規制突起５を設けている。 In the embodiment described above, the press-fitting receiving portion 12 is provided on the upper cover 7 of the box body 2, and the standing piece 15 is provided on the lower cover 3. However, in the present invention, as shown in FIG. 4, the upper cover 7 of the box body 2 may be provided with a standing piece 15 erected toward the lower cover 3, and the press-fitting receiving portion 12 may be provided on the lower cover 3. In the case shown in FIG. 4, the same parts as those in the above-described embodiment are denoted by the same reference numerals and description thereof is omitted. In addition, in the case shown in FIG. 4, the main-body part 6 is provided with the protrusion piece 21 which protruded from the lower edge of the outer wall 8 mentioned above. In the case shown in FIG. 4, the above-described deformation restricting protrusion 5 is provided on the outer surface of the above-described protruding piece 21.

さらに、本発明では、圧入受け部１２と立設片１５とのうち一方を本体部６に設け、他方をロアカバー３に設け、変形規制突起５をアッパカバー７に設けても良い。この場合、変形規制突起５を圧入受け部１２より箱本体２の外側に設けるのが望ましい。 Furthermore, in the present invention, one of the press-fit receiving portion 12 and the standing piece 15 may be provided on the main body portion 6, the other may be provided on the lower cover 3, and the deformation restricting projection 5 may be provided on the upper cover 7. In this case, it is desirable to provide the deformation restricting projection 5 on the outside of the box body 2 from the press-fit receiving portion 12.

さらに、本発明では、本発明の主旨に反しない限り、変形規制突起５を種々の部材に配置しても良いとともに、変形規制部を種々の構成にしても良い。また、本発明の主旨に反しない限り、圧入部材を種々の形状にしても良い。 Further, in the present invention, the deformation restricting protrusion 5 may be arranged on various members and the deformation restricting portion may be variously configured as long as it does not contradict the gist of the present invention. Further, the press-fitting member may have various shapes as long as it does not contradict the gist of the present invention.

なお、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。 In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

本発明の一実施形態に係る電気接続箱の斜視図である。It is a perspective view of the electrical junction box concerning one embodiment of the present 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. 図３に示された電気接続箱の変形例を示す断面図である。It is sectional drawing which shows the modification of the electrical-connection box shown by FIG.

Explanation of symbols

１電気接続箱
２箱本体
３ロアカバー（カバー部材）
４圧入部材
５変形規制突起（変形規制部）
６本体部
６ａ上面（表面）
７アッパカバー（カバー部）
１２圧入受け部
１５立設片
１７スリット 1 Electrical connection box 2 Box body 3 Lower cover (cover member)
4 Press-fit member 5 Deformation restricting protrusion (deformation restricting portion)
6 Body 6a Upper surface (surface)
7 Upper cover (cover part)
12 Press-fit receiving part 15 Standing piece 17 Slit

Claims

A box body on which electrical components are mounted;
In an electrical junction box comprising an elastic material and attached to the box body, and a cover member that keeps water tight between the box body when attached to the box body,
One of the box body and the cover member includes a standing piece erected toward the other,
The other of the box body and the cover member includes a press-fit receiving portion into which the standing piece is press-fitted,
Arranged on the inner side of the box body and the cover member than the press-fit receiving part, and when the standing piece is press-fitted into the press-fit receiving part, the press-fit receiving part comes into contact, A deformation restricting portion for restricting the press-fitting receiving portion from being deformed toward the other inner side;
The standing piece is provided with a slit opening on the outer surface of the standing piece,
An electrical junction box comprising a press-fitting member that is press-fitted into the slit after the standing piece is press-fitted into the press-fitting receiving part .

The box body is
A main body on which the electrical component is mounted;
A cover part that accommodates the main body part and is provided with one of the standing piece and the press-fit receiving part;
The electrical junction box according to claim 1, further comprising:

The press-fit receiving part is provided in the cover part,
The standing piece is provided on the cover member;
The electrical junction box according to claim 2, wherein the deformation restricting portion is provided in the main body portion.

The electrical connection box according to claim 3, wherein the deformation restricting portion is formed so as to protrude from an outer surface of the main body portion, and is disposed inside the cover portion from the press-fit receiving portion.

The press-fitting member is press-fitted into the slit, and protrudes from one end of the press-fitting part and overlaps the outer surface of the standing piece when the press-fitting part is press-fitted into the slit. The electrical connection box according to any one of claims 1 to 4 , further comprising an operation unit exposed to the outside of the standing piece.

The electrical connection box according to any one of claims 1 to 5 , wherein the standing piece is provided with a lip that keeps watertight between an inner surface of the press-fitting receiving portion.