WO2007010710A1 - Electric connection box and method of assembling electric connection box - Google Patents

Electric connection box and method of assembling electric connection box Download PDF

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Publication number
WO2007010710A1
WO2007010710A1 PCT/JP2006/312587 JP2006312587W WO2007010710A1 WO 2007010710 A1 WO2007010710 A1 WO 2007010710A1 JP 2006312587 W JP2006312587 W JP 2006312587W WO 2007010710 A1 WO2007010710 A1 WO 2007010710A1
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WO
WIPO (PCT)
Prior art keywords
block
lower case
lock
blocks
junction box
Prior art date
Application number
PCT/JP2006/312587
Other languages
French (fr)
Japanese (ja)
Inventor
Koji Kasai
Original Assignee
Sumitomo Wiring Systems, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Wiring Systems, Ltd. filed Critical Sumitomo Wiring Systems, Ltd.
Publication of WO2007010710A1 publication Critical patent/WO2007010710A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0239Electronic boxes

Definitions

  • the present invention relates to an electrical junction box and an assembly method of the electrical junction box. Specifically, the electrical junction box divided along with the wire harness division is electrically and mechanically integrated by simple operation. It is something to be made.
  • an electrical junction box 1 for an automobile as disclosed in Japanese Patent Laid-Open No. 8-185921 (Patent Document 1) and the like has been provided, and this electrical junction box 1
  • the undercase 4 connected to the end of the wire harness WZH is attached to the main case 3 provided with the fuse housing 6 and the relay housing 7 so that the upper cover 2 and the lower case 5 are closed from above and below.
  • wire harnesses distributed in automobiles have been reduced in weight, diameter, and common use by dividing a single wire harness into multiple parts for the purpose of improving the efficiency of the power distribution system. In some cases, it is possible to simplify the handling of electric wires.
  • the wire harness divided into a plurality of parts is manufactured in an individual assembly process.
  • the wire harness connected to the electrical junction box is usually connected to the electrical junction box.
  • the one described in Patent Document 2 is known as having a structure for combining the divided electric junction boxes.
  • Patent Document 1 Japanese Patent Laid-Open No. 8-185921
  • Patent Document 2 Japanese Unexamined Patent Application Publication No. 2004-166322
  • the electrical junction box divided as described above requires an electrical and mechanical coupling operation in a later process as compared with an integrated type, so that electrical connection reliability and assembly work are achieved. Sex and A structure that can ensure mechanical strength is required.
  • the present invention has been made in view of the above-described problems, and the blocks of the divided electric connection box can be easily combined in one lower case by a simple operation, and at the same time, the electric circuit accompanying the operation
  • An object of the present invention is to provide an electrical junction box and a method for assembling the electrical junction box that can ensure mechanical connection reliability.
  • the present invention comprises a plurality of blocks provided by dividing the electric junction box main body, and a single lower case that accommodates the plurality of blocks.
  • Each of the divided blocks accommodates a bus bar and is attached with a connector connected to a relay, fuse or z and an electric wire.
  • a circuit connecting portion for connecting the bus bars to each other is provided at the divided end of these blocks.
  • a lock portion for connecting the blocks to each other, and a lock portion for lower case connection is provided on the outer peripheral surface of these blocks.
  • An electrical connection box is provided in which the lock part for coupling the lower case is coupled to a lock part provided on the wall of the lower case.
  • the block assembled and divided in a separate process can be accommodated and combined in the common lower case by the lock portion provided between the block and the lower case, At this time, the bus bars accommodated in the two can be electrically connected to each other by the circuit connecting portion provided at the divided end.
  • the electric junction box main body is divided into two, and the block composed of a first block and a second block is provided, and at the divided end of the first block and the second block
  • the circuit connection portion is provided, and a terminal provided on the first bus bar on the first block side and a terminal provided on the second bus bar on the second block side are fitted and connected to both sides of the circuit connection portion.
  • the first block and the second block are provided with a lock unit.
  • the first block and the second pro- gram in which the terminals constituting the circuit connecting portion that electrically connects the first bus bar of the first block and the second bus bar of the second block are combined. Because it is located in the middle of the lock part between the two blocks, after the first block and the second block are joined, no excessive force is applied to the circuit connection part, and a stable electrical connection state can be maintained.
  • first bus bar of the first block and the second bus bar of the second block are connected at the same time when the lock between the blocks is completed, and the first bus bar and the second bus bar are in the half-fitted state. If the two bus bars are not connected, half-fitting between blocks can be detected by continuity testing.
  • a part of the peripheral wall portion of the lower case is notched to the bottom wall portion with an upper end force, and an opening for electric wire is provided to draw out the electric wire bundle connected to the block, and the peripheral edge of the electric wire opening While the cylindrical temporary fixing portion protrudes from the bottom wall portion, a temporary fixing rib fitted to the cylindrical temporary fixing portion protrudes from the first block, and the temporary fixing rib is fixed to the cylindrical temporary fixing portion. It is possible to prevent the opening for the electric wire from being opened by fitting it into the part.
  • the first block is fitted and fixed to the lower case, and at the same time, the temporary fixing rib protruding from the first block is fitted to the cylindrical temporary fixing portion protruding from the lower case.
  • the lowering of the strength of the lower case peripheral wall provided with the electric wire opening can be compensated, and therefore the deformation of the lower case peripheral wall can be prevented.
  • a method for assembling an electric junction box characterized in that the connection of the sbar is performed simultaneously with the insertion operation.
  • one block is fitted and fixed in a first-in state by a locking portion between the two blocks by fitting one of the divided blocks to the common lower case. it can.
  • the other block is fitted into the lower case in which one block is inserted, it is only necessary to insert the other block into the empty space. Therefore, the insertion direction can be easily specified and positioned.
  • By inserting the block into the lower case it is possible to couple with the other block and with the lower case via the lock portion. Therefore, it is also possible to connect and fix the divided blocks to the common lower case. It can be done easily.
  • the first block is inserted into the lower case, and the lower case fixing lock portion of the first block and the lock portion provided on the inner surface of the lower case are fitted and locked, and the lower case Insert the temporary fixing rib of the first block into the cylindrical temporary fixing part,
  • the second block is inserted into the lower case, and the bus bar is connected to the first block in which the second block is inserted in advance and the bus bar is connected by the lock portion of the circuit connecting portion of the second block at the time of the insertion operation.
  • the wire bundle connected to the first and second blocks drawn out from the wire opening is sandwiched between the lower fixing piece and the upper fixing piece protruding from the lower case and the first and second blocks, and then wound with tape. Fixed or Z and band winding fixed.
  • the first block is inserted into the lower case so that the first block and the case are coupled by the lock portion, and at the same time, the cylindrical fixing portion provided in the lower case is attached to the first block. Since the provided temporary fixing rib is inserted, the lower case peripheral wall provided with the wire opening can be reinforced. In addition, the wire opening force of the lower case can be easily pulled out from the wire bundle connected to the first block. Also, by inserting the second block into the empty space of the lower case, the connection between the bus bars of the first block and the second block can be made simultaneously with the fixing of the second block.
  • the electrical junction box and the method for assembling the electrical junction box of the present invention it is easy to operate the blocks divided along with the division of the wire harness on the common lower case.
  • the bus bar can be connected between the divided blocks at the same time as combining the blocks. Therefore, the workability of the coalescing operation in the divided electric junction box can be improved, and the electrical and mechanical connection reliability can be maintained.
  • FIG. 1 (A) is a plan view of an electrical junction box according to the present invention, and (B) is a front view of the same.
  • FIG. 2A is a plan view of a first block
  • FIG. 2B is a front view of the same
  • FIG. 2C is a perspective view of a lock portion.
  • FIG. 3 (A) is a bottom view of the first block, and (B) is a left side view.
  • FIG. 4A is a plan view of a second block
  • FIG. 4B is a front view of the same
  • FIG. 4C is a perspective view of a lock portion.
  • FIG. 5 (A) is a bottom view of the second block, and (B) is an XX cross-sectional view of (A).
  • FIG. 6 (A) is a plan view of the lower case, and (B) is a front view of the same.
  • FIG. 7 is a rear view of the lower case.
  • FIG. 8 (A) is a plan view showing a state where the first block is fitted to the lower case, (B) is an enlarged view of the main part of the lock part, and (C) is a fitting between the temporary fixing rib and the cylindrical temporary fixing part. It is a principal part enlarged view of a combined state.
  • FIG. 9 (A) and (B) are cross-sectional views showing the state of the coupling process of the circuit connecting portions of the first block and the second block.
  • FIG. 10 shows a conventional example.
  • 1 (A) and 1 (B) show the electrical junction box 10 of the embodiment.
  • the first block 20 and the second block 30 are divided into two along the central line to be connected to separate wire harnesses.
  • a lower case 40 that covers the upper surface of the lower case 40 (not shown).
  • the first block 20 has a substantially rectangular shape in plan view, and electrical parts E such as relays and fuses are placed at predetermined positions on the upper surface of the main body portion 21 made of synthetic resin.
  • An electric component housing part 22 that can be mounted is provided on the outer peripheral surface of the main body 21, a lower case 4 described later is provided.
  • Lock portions 23a and 23b for locking and coupling with zero lock portions 41a and 41b are provided on the outer peripheral surface, and are composed of a lock arm 23d and a lock claw 23e that can be stowed inertially with the lower end as a fulcrum. ing.
  • a lock portion 24a for coupling to lock portions 33a and 33b of the second block 30 described later. 24b is provided.
  • the locking portions 24a and 24b are provided with locking projections 24d having a lower surface as a locking surface at the upper end of the outer surface of the convex portion 24c provided on the outer peripheral surface of the main body portion 21.
  • a connector part 25 for connecting the connector and terminals of the wire harness WZH1 introduced into the first block 20 is provided on the lower surface side of the main body part 21, a connector part 25 for connecting the connector and terminals of the wire harness WZH1 introduced into the first block 20 is provided.
  • a bus bar 26 constituting a required circuit is internally provided between the connector portion 25 and the electrical component housing portion 22.
  • a circuit connecting portion 27 for making electrical and mechanical coupling with a second block 30 described later is provided at the approximate center of the split end 21a in the main body portion 21.
  • the circuit connecting portion 27 includes two terminal accommodating portions 27b that protrude upward while being surrounded by a groove portion 27a. Two female relay terminals 27c connected to the bus bar 26 are accommodated.
  • the relay terminal 27c accommodates the counterpart terminal in a state where it can be received from above.
  • the circuit connection portion 27 further includes a lock portion 27d for connecting the first block 20 and the second block 30 with the counterpart terminal connected to the relay terminal 27c.
  • the lock portion 27d is integrally projected upward at a position entering the center from the two terminal accommodating portions 27b on the upper surface of the main body portion 21, and the locking claw 27e (FIGS. 9A and 9B).
  • the upper left corner of the main body 21 has a half-cylindrical shape for covering and guiding the upper half of the wire bundle of the wire harness WZH1 introduced into the first block 20.
  • the upper fixed piece 28 is protruded obliquely outward in a predetermined direction.
  • Round terminal fittings (not shown) attached to the terminals of the power supply line P (Fig. 1 (B)) to be separately introduced into the electrical junction box 10 are bolted to the left and right sides of the circuit connection portion 27 in the main body 21.
  • a pair of power connection terminals 29 are provided for electrical and mechanical connection by, for example. 2 and 3 showing the first block 20, where electrical component E and wire harness WZH1, WZH2 are not shown. There is also a certain force when assembling these parts in place.
  • the second block 30 has a shape in which one corner is cut out in plan view, and the first block is formed on the upper surface of the synthetic resin main body 31. Similar to 20, an electrical component housing portion 32 is provided in which electrical components E such as relays and fuses can be mounted at predetermined positions.
  • electrical components E such as relays and fuses
  • the lock portions 33a and 33b are provided in positioning concave portions 33c formed on the outer peripheral surface, and, like the lock portions 23a and 23b of the first block 20, are locks that can be stowed in an inertial manner with the lower end as a fulcrum. Arm 3 3d and lock claw 33e will help!
  • lock portions 34a and 34b for locking and coupling with lock portions 42a and 42b of the lower case 40 described later are provided on both the left and right side surfaces of the main body portion 31.
  • These lock portions 34a and 34b are also provided in a positioning recess 34c formed on the outer peripheral surface, and include a lock arm 34d that can be elastically bent with the lower end as a fulcrum, and a lock claw 34e! /,
  • a connector 35 for connecting the connector and terminals of the wire harness WZH2 introduced into the second block 30 is provided on the lower surface side of the main body 31, as shown in FIG. 4 (B).
  • a bus bar 36 that constitutes a required circuit between the connector part 35 and the electrical component housing part 32 is housed inside the part 31.
  • a circuit connection portion 37 for electrical and mechanical coupling with the circuit connection portion 27 of the first block 20 is similarly provided at the approximate center of the split end 31a in the main body portion 31.
  • the circuit connecting portion 37 of the second block 30 includes a frame portion 37a that can be fitted in the groove portion 27a in the circuit connecting portion 27 of the first block 20, and terminals in the frame portion 37a.
  • the housing portion 37b accommodates two male tabs 37c that are connected to the bus bar 36 and raised upward, and then folded back and extended downward.
  • the male tab 37c is arranged at a position corresponding to the relay terminal 27c of the first block 20.
  • the male tab 37c is inserted into the relay terminal 27c so that it can be electrically connected.
  • a lock portion 37d that can be locked to the lock portion 27d of the first block 20 is further provided at the center of the outer surface of the frame portion 37a.
  • the lock portion 37d is composed of a mouth arm 37e that can be squeezed with one end as a fulcrum and a lock claw 37f.
  • the lock portion 37d is attached to the first block 20.
  • the lock claw 37f is engaged with the locking claw 27e of the provided lock portion 27d.
  • the upper fixing with an L-shaped cross section for covering and guiding the upper half of the wire bundle of the wire harness WZH2 introduced into the second block 30
  • the piece 38 protrudes sideways.
  • the lower case 40 is also made of synthetic resin and is formed into a bottomed box shape by the peripheral wall portion 43 and the bottom wall portion 45, as shown in FIG. 6 (A).
  • a substantially upper half portion in plan view is a first block housing portion 46 and a substantially lower half portion is a second block housing portion 47.
  • the second block accommodating portion 47 is divided by a partition wall 43a that is integrally raised from the bottom wall portion 45, leaving a little left region of the lower case 40.
  • lock portions 41a and 41b for fixing the first block 20 accommodated in the first block accommodating portion 46 are projecting portions provided at the left and right positions of the inner peripheral surface 43 on the upper side in plan view of FIG. 6 (A). 41A and 41B are formed.
  • lock portions 42a and 42b for fixing the second block 30 housed in the second block housing portion 47 are a protrusion 43A provided on the right side surface of the partition wall 43a in plan view, and FIG. It is formed on a protrusion 43B provided at a lower position on the inner surface of the peripheral wall 43 on the right side of the plane.
  • the protrusions 41A and 41B and the protrusions 43A and 43B have a fitting structure for positioning corresponding to the recesses 23c and 34c of the first block 20 and the second block 30, respectively.
  • the locking portions 41a and 41b and the locking portions 42a and 42b are provided with locking projections 41d and 43d for locking the locking claw 23e and locking claw 34e of the locking arm 23d and the locking arm 34d on the mating side.
  • the inner surface of the peripheral wall 43 of the second block housing part 47 and the partition wall 43a On the surface on the right side of the plan view, protrusions 48a and 48b having semicircular cross sections corresponding to the concave grooves 31b and 31c of the second block 30 are provided.
  • the peripheral wall portion 43 of the lower case 40 is provided with an electric wire opening 49 cut out from the upper end of the peripheral wall portion 43 to the bottom wall portion 45 at the upper left corner of the plan view in FIG. 6 (A).
  • the wire bundle of the wire harness WZH 1 introduced to the first block 20 by 49 can be pulled out!
  • the lower fixed piece 49a in the form of a half cylinder for guiding the lower half of the bundle of wires is guided toward the predetermined diagonally outer side corresponding to the upper fixed piece 28 of the first block 20. Projecting.
  • the peripheral wall 43 on the right side of the lower case 40 in the plan view has an electric wire opening 50 with the upper end force cut out to the bottom wall 45, and the wire harness WZH2 introduced into the second block 30 through the electric wire opening 50. Can be pulled out to the outside.
  • a lower fixing piece 50a with an L-shaped cross section for covering and guiding the lower part of the bundle of wires is provided in the electric wire opening 50 so as to project in a predetermined direction corresponding to the upper fixing piece 38 of the second block 30. is doing.
  • a bracket BK for attaching the electrical junction box 10 to the vehicle body is provided at a predetermined position on the outer surface of the lower case 40.
  • a cylindrical temporary fixing portion 51 protrudes upward from the bottom wall portion 45.
  • the first block 20 has a configuration shown in FIGS. ), A temporary fixing rib 52 that can be inserted into the cylindrical temporary fixing portion 51 with an upward force is also provided integrally with the bottom portion force of the main body 21.
  • the temporary fixing rib 52 has a rod shape with a diameter that fits into the hollow portion of the cylindrical temporary fixing portion 51, and has a reduced diameter at the tip as shown in FIG. 9 (C).
  • the temporary fixing rib 52 may have a shape in which the diameter is gradually reduced not only at the tip but also along the entire length in the length direction.
  • the fitting structure between the cylindrical temporary fixing part 51 and the temporary fixing rib 52 reinforces the peripheral wall part 43 that is easy to open outward due to a decrease in strength due to the formation of the opening 49 for the electric wire. It has an action to prevent.
  • the partition wall 43a of the lower case 40 is provided with two lock portions 53 for mounting the joint connector on the left side in a plan view of FIG. 6 (A).
  • a wire harness (not shown) connected to a joint connector (not shown) attached to the lock portion 53 can also be pierced outside through the wire opening 49.
  • the wire bundle of the wire harness of the joint connector attached to the lock portion 53 of the lower case 40 and the wire bundle of the wire harness WZH1 of the first block 20 are connected to the wire opening of the lower case 40.
  • the first block 20 is inserted into the first block housing portion 46 of the lower case 40 and pressed so as to be pulled out from the outside.
  • the lock arm 23d is moved between the lock parts 23a, 23b for fixing the lower case of the first block 20 and the lock parts 41a, 41b on the inner surface of the lower case 40 as shown in FIG.
  • the first block 20 is locked and fixed to the lower case 40 by squeezing and locking the locking claw 23e to the locking projection 41d.
  • the wire harness connected to the joint connector is routed in the vicinity. Unlike normal locking parts, the cylindrical temporary fixing parts Since the temporary fixing rib 52 is inserted into the portion 51, the wire harness is not bitten during the fitting.
  • the first block 20 is fitted into the first block housing portion 46, the position of the recess 23c of the first block 20 with respect to the protrusions 41A and 4IB of the lower case 40 is adjusted to match the position of the first block 20.
  • the fitting direction is regulated in the correct direction.
  • the wire harness WZ HI drawn out and the wire bundle of the wire harness connected to the joint connector are arranged between the lower fixed piece 49a of the lower case 40 and the upper fixed piece 28 of the first block 20. .
  • the wire harness WZH2 of the second block 30 is arranged between the lower fixed piece 50a and the upper fixed piece 38 so as to be pulled out from the electric wire opening 50 of the lower case 40, and The second block 30 is inserted into the two-block housing portion 47 and pressed.
  • the lock arm 34d is pinched between the lock portions 34a and 34b for fixing the lower case of the second block 30 and the lock portions 42a and 42b of the lower case 40, and the lock pawl 34e is moved to the locking projection 43d.
  • the second block 30 is locked to the lower case 40 by locking.
  • the lock arm 33d of the second block 30 33a, the lock arm 33d force 33d force S of the lock block 33e force S and the lock projection 24d of the lock part 24a, 24b of the first block 20 is locked.
  • the first block 20 and the second block 30 are lock-coupled.
  • Fitting of the second block 30 into the second block housing part 47 For the joint operation, the protrusions 43A and 43B of the lower case 40 and the concave part 34c of the second block 30 and the protrusions 48a and 48b of the upper case 40 and the concave grooves 3 lb and 31c of the second block 30 are respectively provided. By arranging them, it is possible to regulate the orientation of the second block 30 and to achieve stability after fitting.
  • the lock portion 27d of the first block 20 and the lock portion 37d of the second block 30 are lock-coupled.
  • the male tab 37c of the second block 30 is completely inserted into the relay terminal 27c of the first block 20
  • the bus bar configuring the internal circuit of the first block 20 via the relay terminal 27c and the male tab 37c. 26 and the bus bar 36 constituting the internal circuit of the second block 30 are electrically connected.
  • each of the divided blocks can be obtained by a simple operation in which the first block 20 and the second block 30 are sequentially inserted into the predetermined lower position and locked to the common lower case 40. Electrical and mechanical coupling can be achieved.
  • the wire harnesses W / H1 and 2 are taped and fixed to a lower fixing piece protruding from the periphery of the lower case electric wire opening and an upper fixing piece provided to the first and second blocks.
  • band winding fixing may be used, and tape winding fixing and band winding fixing may be used in combination.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Or Junction Boxes (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

A block (20) is inserted into a lower case (40), and a lower case fixing lock of the block (20) and a lock provided on the inner surface of the lower case are interlocked and fixed together. Then, another block (30) is inserted into the lower case (40). When the insertion of the blocks (20, 30) are made as above, the following is performed simultaneously: locking between the block (30) and the block (20) initially inserted, locking between the block (30) and the lower case, and connection of bus bars (26, 36) by locking of circuit connection sections (27, 37) of the blocks (20, 30).

Description

明 細 書  Specification
電気接続箱および電気接続箱の組立方法  Electrical junction box and method of assembling the electrical junction box
技術分野  Technical field
[0001] 本発明は、電気接続箱および電気接続箱の組立方法に関し、詳しくは、ワイヤハー ネスの分割に伴って分割された電気接続箱を簡易な操作により電気的、機械的に一 体ィ匕させるものである。  TECHNICAL FIELD [0001] The present invention relates to an electrical junction box and an assembly method of the electrical junction box. Specifically, the electrical junction box divided along with the wire harness division is electrically and mechanically integrated by simple operation. It is something to be made.
背景技術  Background art
[0002] 従来、図 10に示すように、特開平 8— 185921号公報 (特許文献 1)等に開示され ているような自動車用の電気接続箱 1が提供されており、この電気接続箱 1はワイヤ ハーネス WZHの端末に接続されたアンダーケース 4をヒューズ収容部 6やリレー収 容部 7が設けられたメインケース 3に取り付けて、アッパーカバー 2とロアケース 5とに よって上下から閉塞する構造を有している。一方、自動車に配索されるワイヤハーネ スは電源分配システムの効率ィ匕等を目的として、従来は 1つであったワイヤハーネス を複数に分割することでワイヤハーネスの軽量化、小径化、共用化、電線の取り回し の簡素化等を図る場合がある。  Conventionally, as shown in FIG. 10, an electrical junction box 1 for an automobile as disclosed in Japanese Patent Laid-Open No. 8-185921 (Patent Document 1) and the like has been provided, and this electrical junction box 1 The undercase 4 connected to the end of the wire harness WZH is attached to the main case 3 provided with the fuse housing 6 and the relay housing 7 so that the upper cover 2 and the lower case 5 are closed from above and below. Have. On the other hand, wire harnesses distributed in automobiles have been reduced in weight, diameter, and common use by dividing a single wire harness into multiple parts for the purpose of improving the efficiency of the power distribution system. In some cases, it is possible to simplify the handling of electric wires.
[0003] 前記のように複数に分割されたワイヤハーネスは、それぞれ個別の組立工程で製 造されることとなるが、電気接続箱に接続されるワイヤハーネスは、通常電気接続箱 を接続して一体ィ匕した状態で納入を行うため、ワイヤハーネスの分割に伴って電気 接続箱も複数に分割し、後に分割された電気接続箱を合体する構造とすることが必 要となる。このように、分割された電気接続箱を合体する構造を備えたものとして、特 許文献 2に記載のものが知られている。  [0003] As described above, the wire harness divided into a plurality of parts is manufactured in an individual assembly process. The wire harness connected to the electrical junction box is usually connected to the electrical junction box. In order to deliver in an integrated state, it is necessary to divide the electrical junction box into multiple parts along with the division of the wire harness and combine the divided electrical junction boxes later. As described above, the one described in Patent Document 2 is known as having a structure for combining the divided electric junction boxes.
[0004] 特許文献 1 :特開平 8— 185921号公報  [0004] Patent Document 1: Japanese Patent Laid-Open No. 8-185921
特許文献 2 :特開 2004— 166322号公報  Patent Document 2: Japanese Unexamined Patent Application Publication No. 2004-166322
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0005] 前記のように分割された電気接続箱は、一体型のものに比べて後工程での電気的 、機械的な結合操作が必要となるため、電気的な接続信頼性と、組立作業性および 機械的強度を確保できる構造が求められる。 [0005] The electrical junction box divided as described above requires an electrical and mechanical coupling operation in a later process as compared with an integrated type, so that electrical connection reliability and assembly work are achieved. Sex and A structure that can ensure mechanical strength is required.
[0006] 本発明は前記した問題に鑑みてなされたもので、簡易な操作により、分割された電 気接続箱のブロックを 1つのロアケース内で容易に結合操作できると同時に、操作に 伴う電気的、機械的な接続信頼性を確保できる電気接続箱および電気接続箱の組 立方法を提供することを課題として 、る。  [0006] The present invention has been made in view of the above-described problems, and the blocks of the divided electric connection box can be easily combined in one lower case by a simple operation, and at the same time, the electric circuit accompanying the operation An object of the present invention is to provide an electrical junction box and a method for assembling the electrical junction box that can ensure mechanical connection reliability.
課題を解決するための手段  Means for solving the problem
[0007] 前記課題を解決するため、本発明では、電気接続箱本体を分割して設けた複数の ブロックと、これら複数のブロックを収容する 1つのロアケースとを備え、 [0007] In order to solve the above problems, the present invention comprises a plurality of blocks provided by dividing the electric junction box main body, and a single lower case that accommodates the plurality of blocks.
前記分割されたブロックは、それぞれバスバーが収容されていると共にリレー、ヒュ ーズあるいは zおよび電線に接続されたコネクタが装着され、これらブロックの分割 端には前記バスバー同士を接続させる回路接続部が設けられていると共にブロック 同士を結合するロック部が設けられ、かつ、これらブロックの外周面にはロアケース結 合用のロック部が設けられ、  Each of the divided blocks accommodates a bus bar and is attached with a connector connected to a relay, fuse or z and an electric wire. A circuit connecting portion for connecting the bus bars to each other is provided at the divided end of these blocks. And a lock portion for connecting the blocks to each other, and a lock portion for lower case connection is provided on the outer peripheral surface of these blocks.
前記ロアケース結合用のロック部がロアケースの壁部に設けたロック部に結合され て!、ることを特徴とする電気接続箱を提供して!/、る。  An electrical connection box is provided in which the lock part for coupling the lower case is coupled to a lock part provided on the wall of the lower case.
[0008] 前記構成によれば、別工程で組み立てられて分割されたブロックを、ブロックとロア ケースとの間に設けたロック部により共通のロアケース内に収容して結合することがで き、その際、分割端に設けた回路接続部によって両者に収容されたバスバー同士を 電気的に接続することができる。  [0008] According to the above configuration, the block assembled and divided in a separate process can be accommodated and combined in the common lower case by the lock portion provided between the block and the lower case, At this time, the bus bars accommodated in the two can be electrically connected to each other by the circuit connecting portion provided at the divided end.
[0009] 具体的には、前記電気接続箱本体を 2分割して、第 1ブロックと第 2ブロックとからな る前記ブロックを設けており、前記第 1ブロックと第 2ブロックとの分割端に前記回路接 続部が設けられ、第 1ブロック側の第 1バスバーに設けられた端子と第 2ブロック側の 第 2バスバーに設けられた端子とが嵌合接続され、該回路接続部の両側に第 1ブロッ クと第 2ブロックとを結合するロック部を備えた構成としている。  [0009] Specifically, the electric junction box main body is divided into two, and the block composed of a first block and a second block is provided, and at the divided end of the first block and the second block The circuit connection portion is provided, and a terminal provided on the first bus bar on the first block side and a terminal provided on the second bus bar on the second block side are fitted and connected to both sides of the circuit connection portion. The first block and the second block are provided with a lock unit.
[0010] このように構成すると、第 1ブロックの第 1バスバーと、第 2ブロックの第 2バスバーを 電気的に接続する回路接続部を構成する端子が、結合された第 1ブロックと第 2プロ ック同士のロック部の中間に位置するので、第 1ブロックと第 2ブロックとの結合後は、 回路接続部に無理な力が作用せず、安定した電気的接続状態を維持することができ る。 [0010] With this configuration, the first block and the second pro- gram in which the terminals constituting the circuit connecting portion that electrically connects the first bus bar of the first block and the second bus bar of the second block are combined. Because it is located in the middle of the lock part between the two blocks, after the first block and the second block are joined, no excessive force is applied to the circuit connection part, and a stable electrical connection state can be maintained. The
また、ブロック同士のロックが完結すると同時に第 1ブロックの第 1バスバーと第 2ブ ロックの第 2バスバーとが接続される構成とし、ブロック同士のロックが半嵌合状態で は第 1バスバーと第 2バスバーとが接続されないようにしておくと、導通検査によりプロ ック同士の半嵌合を検知することができる。  In addition, the first bus bar of the first block and the second bus bar of the second block are connected at the same time when the lock between the blocks is completed, and the first bus bar and the second bus bar are in the half-fitted state. If the two bus bars are not connected, half-fitting between blocks can be detected by continuity testing.
[0011] また、前記ロアケースの周壁部の一部を上端力 底壁部まで切り欠 、て、前記プロ ックに接続された電線束を引き出す電線用開口が設けられ、該電線用開口の周縁の 底壁部から筒状仮固定部を突設する一方、前記第 1ブロックに前記筒状仮固定部に 嵌合される仮固定リブが突設され、該仮固定リブを前記筒状仮固定部に嵌合するこ とで前記電線用開口の開きが防止される構成としてもょ ヽ。  [0011] Further, a part of the peripheral wall portion of the lower case is notched to the bottom wall portion with an upper end force, and an opening for electric wire is provided to draw out the electric wire bundle connected to the block, and the peripheral edge of the electric wire opening While the cylindrical temporary fixing portion protrudes from the bottom wall portion, a temporary fixing rib fitted to the cylindrical temporary fixing portion protrudes from the first block, and the temporary fixing rib is fixed to the cylindrical temporary fixing portion. It is possible to prevent the opening for the electric wire from being opened by fitting it into the part.
[0012] 前記構成を備えれば、ロアケースに第 1ブロックを嵌合固定すると同時に、ロアケー スに突設した筒状仮固定部に第 1ブロックに突設した仮固定リブが嵌合するため、電 線用開口が設けられたロアケース周壁の強度低下を補うことができ、よってロアケー ス周壁の変形を防止することができる。  [0012] With the above configuration, the first block is fitted and fixed to the lower case, and at the same time, the temporary fixing rib protruding from the first block is fitted to the cylindrical temporary fixing portion protruding from the lower case. The lowering of the strength of the lower case peripheral wall provided with the electric wire opening can be compensated, and therefore the deformation of the lower case peripheral wall can be prevented.
[0013] また他一方の発明では、前記構成力もなる電気接続箱の組立方法であって、 前記ロアケース内に 1つの前記ブロックを挿入し、該ブロックのロアケース固定用口 ック部と前記ロアケースの内面に設けたロック部とを嵌合ロックして固定し、  [0013] In another aspect of the invention, there is provided a method for assembling an electric junction box having the above-described structural force, wherein one block is inserted into the lower case, and a lower case fixing mouth portion of the block and the lower case The lock part provided on the inner surface is fitted and fixed,
次いで、他のブロックを前記ロアケース内に挿入し、該ブロックと先入れした前記ブ ロックとのロック結合と、該ブロックと口 ゲースとのロック結合と、ブロック同士の回路 接続部のロック部によるノ スバーの接続とを前記挿入作業時に同時に行うことを特徴 とする電気接続箱の組立方法を提供して 、る。  Next, another block is inserted into the lower case, and the lock connection between the block and the block inserted in advance, the lock connection between the block and the gate case, and the lock part of the circuit connection part between the blocks are provided. A method for assembling an electric junction box is provided, characterized in that the connection of the sbar is performed simultaneously with the insertion operation.
[0014] この組立方法によれば、共通のロアケースに対し分割された一方のブロックを嵌合 することで両者間のロック部により一方のブロックを先入れ状態で嵌合固定しておくこ とができる。そして、一方のブロックが先入れされたロアケースへの他方のブロックの 嵌合に際しては空きスペースに対し、他方のブロックを挿入すればよいため、挿入方 向の特定と位置決めも容易であり、他方のブロックのロアケース内への挿入操作によ つて他方のブロックとの間およびロアケースとの間でロック部を介して結合することが できる。よって、共通のロアケースに対する分割されたブロックの結合固定作業も容 易に行うことができる。 [0014] According to this assembling method, one block is fitted and fixed in a first-in state by a locking portion between the two blocks by fitting one of the divided blocks to the common lower case. it can. When the other block is fitted into the lower case in which one block is inserted, it is only necessary to insert the other block into the empty space. Therefore, the insertion direction can be easily specified and positioned. By inserting the block into the lower case, it is possible to couple with the other block and with the lower case via the lock portion. Therefore, it is also possible to connect and fix the divided blocks to the common lower case. It can be done easily.
[0015] 更に、前記ロアケース内に第 1ブロックを挿入し、該第 1ブロックのロアケース固定用 ロック部と前記ロアケースの内面に設けたロック部とを嵌合ロックして固定すると共に、 前記ロアケースの筒状仮固定部に第 1ブロックの仮固定リブを挿入し、  [0015] Furthermore, the first block is inserted into the lower case, and the lower case fixing lock portion of the first block and the lock portion provided on the inner surface of the lower case are fitted and locked, and the lower case Insert the temporary fixing rib of the first block into the cylindrical temporary fixing part,
該第 1ブロックに接続された電線束をロアケースの前記電線用開口より外部に引き 出し、  Pull the wire bundle connected to the first block to the outside from the wire opening in the lower case,
次いで、前記第 2ブロックを前記ロアケース内に挿入し、該第 2ブロックを先入れし た前記第 1ブロックと第 2ブロックの回路接続部のロック部によるバスバーの接続とを 前記挿入作業時に同時に行い、  Next, the second block is inserted into the lower case, and the bus bar is connected to the first block in which the second block is inserted in advance and the bus bar is connected by the lock portion of the circuit connecting portion of the second block at the time of the insertion operation. ,
前記第 2ブロックに接続された電線束を前記ロアケースの電線用開口から外部に引 き出し、  Pull the wire bundle connected to the second block to the outside from the wire opening of the lower case,
次いで、電線用開口から引き出される第 1、第 2ブロックに接続された電線束を前記 ロアケースと第 1、第 2ブロックとから突設した下側固定片と上側固定片の間に挟んで テープ巻き固定あるいは Zおよびバンド巻き固定するようにしている。  Next, the wire bundle connected to the first and second blocks drawn out from the wire opening is sandwiched between the lower fixing piece and the upper fixing piece protruding from the lower case and the first and second blocks, and then wound with tape. Fixed or Z and band winding fixed.
[0016] 前記組立方法によれば、ロアケースに第 1ブロックを挿入することで第 1ブロックと口 ァケースとの間のロック部による結合と同時に、ロアケースに設けた筒状固定部に第 1ブロックに設けた仮固定リブが挿入されるので、電線用開口が設けられたロアケー ス周壁を補強することができる。更に、第 1ブロックに接続された電線束をロアケース の電線用開口力も容易に引き出すことができる。また、ロアケースの空きスペースに 第 2ブロックを挿入することで、第 2ブロックの固定と同時に第 1ブロックと第 2ブロック のバスバー間の接続を行うことができる。 [0016] According to the assembling method, the first block is inserted into the lower case so that the first block and the case are coupled by the lock portion, and at the same time, the cylindrical fixing portion provided in the lower case is attached to the first block. Since the provided temporary fixing rib is inserted, the lower case peripheral wall provided with the wire opening can be reinforced. In addition, the wire opening force of the lower case can be easily pulled out from the wire bundle connected to the first block. Also, by inserting the second block into the empty space of the lower case, the connection between the bus bars of the first block and the second block can be made simultaneously with the fixing of the second block.
発明の効果  The invention's effect
[0017] 以上の説明より明らかなように、本発明の電気接続箱および電気接続箱の組立方 法によれば、ワイヤハーネスの分割に伴って分割されたブロックを共通のロアケース に対し簡易な操作で結合固定することができると共に、分割されたブロック間のバス バーの接続もブロックの結合と同時操作にて行うことができる。よって、分割された電 気接続箱における合体操作の作業性向上と共に、電気的、機械的な接続信頼性を ½保することができる。 図面の簡単な説明 As is apparent from the above description, according to the electrical junction box and the method for assembling the electrical junction box of the present invention, it is easy to operate the blocks divided along with the division of the wire harness on the common lower case. The bus bar can be connected between the divided blocks at the same time as combining the blocks. Therefore, the workability of the coalescing operation in the divided electric junction box can be improved, and the electrical and mechanical connection reliability can be maintained. Brief Description of Drawings
[0018] [図 1] (A)は本発明に係る電気接続箱の平面図、(B)は同上正面図である。  FIG. 1 (A) is a plan view of an electrical junction box according to the present invention, and (B) is a front view of the same.
[図 2] (A)は第 1ブロックの平面図、(B)は同上正面図、(C)はロック部の斜視図であ る。  FIG. 2A is a plan view of a first block, FIG. 2B is a front view of the same, and FIG. 2C is a perspective view of a lock portion.
[図 3] (A)は第 1ブロックの底面図、(B)は左側面図である。  [FIG. 3] (A) is a bottom view of the first block, and (B) is a left side view.
[図 4] (A)は第 2ブロックの平面図、(B)は同上正面図、(C)はロック部の斜視図であ る。  4A is a plan view of a second block, FIG. 4B is a front view of the same, and FIG. 4C is a perspective view of a lock portion.
[図 5] (A)は第 2ブロックの底面図、(B)は (A)の X— X断面図である。  [FIG. 5] (A) is a bottom view of the second block, and (B) is an XX cross-sectional view of (A).
[図 6] (A)はロアケースの平面図、(B)は同上正面図である。  [Fig. 6] (A) is a plan view of the lower case, and (B) is a front view of the same.
[図 7]ロアケースの背面図である。  FIG. 7 is a rear view of the lower case.
[図 8] (A)はロアケースに第 1ブロックを嵌合した状態の平面図、(B)はロック部の要 部拡大図、(C)は仮固定リブと筒状仮固定部との嵌合状態の要部拡大図である。  [FIG. 8] (A) is a plan view showing a state where the first block is fitted to the lower case, (B) is an enlarged view of the main part of the lock part, and (C) is a fitting between the temporary fixing rib and the cylindrical temporary fixing part. It is a principal part enlarged view of a combined state.
[図 9] (A) (B)は第 1ブロックと第 2ブロックの回路接続部の結合過程の状態を示す断 面図である。  [FIG. 9] (A) and (B) are cross-sectional views showing the state of the coupling process of the circuit connecting portions of the first block and the second block.
[図 10]従来例を示す図である。  FIG. 10 shows a conventional example.
符号の説明  Explanation of symbols
[0019] 10 電気接続箱 [0019] 10 Electrical junction box
20 第 1ブロック  20 1st block
21a 分割端  21a Split end
23a, 23b ロアケース用のロック部  23a, 23b Lower case lock
24a、 24b 第 2ブロック用のロック咅  24a, 24b Lock block for second block
26 バスバー  26 Busbar
27 回路接続部  27 Circuit connection
27c 中継端子  27c Relay terminal
27d ロック部  27d Lock part
28 上側固定片  28 Upper fixed piece
30 第 2ブロック  30 2nd block
31a 分割端 33a、 33b 第 1ブロック用のロック咅 31a Split end 33a, 33b Lock block for first block
34a、 34b ロアケース用のロック部  34a, 34b Lower case lock
36 バスバー  36 Busbar
37 回路接続部  37 Circuit connection
38 上側固定片  38 Upper fixed piece
37c 雄タブ  37c Male tab
37d ロック部  37d Lock part
40 ロアケース  40 Lower case
41a、 41b 第 1ブロック用のロック咅  41a, 41b Lock block for first block
42a、 42b 第 2ブロック用のロック咅  42a, 42b Lock block for second block
43 周壁部  43 Perimeter wall
43a 仕切壁  43a partition wall
45 底壁部  45 Bottom wall
49、 50 電線用開口  49, 50 Wire opening
49a, 50a 下側固定片  49a, 50a Lower fixing piece
51 筒状仮固定部  51 Cylindrical temporary fixing part
52 仮固定リブ  52 Temporary fixing rib
W/H1 第 1ブロックと接続されたワイヤハーネス  W / H1 Wire harness connected to the first block
W/H2 第 2ブロックと接続されたワイヤハーネス  W / H2 Wire harness connected to second block
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0020] 以下、本発明の実施形態を図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図 1 (A) (B)は実施形態の電気接続箱 10を示し、別個のワイヤハーネスに接続さ れるために中央ラインに沿って 2分割された第 1ブロック 20、第 2ブロック 30と、これら を収容するロアケース 40と、ロアケース 40の上面に被せられるアッパーケース(図示 せず)から構成している。  1 (A) and 1 (B) show the electrical junction box 10 of the embodiment. The first block 20 and the second block 30 are divided into two along the central line to be connected to separate wire harnesses. And a lower case 40 that covers the upper surface of the lower case 40 (not shown).
[0021] 第 1ブロック 20は、図 2 (A)に示すように、平面視略長方形状をなし、合成樹脂製の 本体部 21の上面にはリレー、ヒューズ等の電気部品 Eを所定位置に装着可能な電気 部品収容部 22を設けている。本体部 21の外周面においては、後述するロアケース 4 0のロック部 41a、 41bとロック結合するためのロック部 23a、 23bを設けている。これら 本体部 21のロック部 23a、 23bは、外周面に形成した位置決め用の凹部 23c内に設 けられ、下端を支点として弹性的に橈み可能なロックアーム 23dと、ロック爪 23eとか らなっている。 [0021] As shown in Fig. 2 (A), the first block 20 has a substantially rectangular shape in plan view, and electrical parts E such as relays and fuses are placed at predetermined positions on the upper surface of the main body portion 21 made of synthetic resin. An electric component housing part 22 that can be mounted is provided. On the outer peripheral surface of the main body 21, a lower case 4 described later is provided. Lock portions 23a and 23b for locking and coupling with zero lock portions 41a and 41b are provided. The lock portions 23a and 23b of the main body portion 21 are provided in a positioning recess 23c formed on the outer peripheral surface, and are composed of a lock arm 23d and a lock claw 23e that can be stowed inertially with the lower end as a fulcrum. ing.
更に本体部 21の外周面の図中下側、即ちロアケース 40の中央に対応する分割端 21aの両側には、後述する第 2ブロック 30のロック部 33a、 33bに結合するためのロッ ク部 24a、 24bを設けている。ロック部 24a、 24bは、本体部 21の外周面に設けた凸 部 24cの外面上端に下面を係止面とした係止突起 24dを突設している。  Further, on the lower side of the outer peripheral surface of the main body 21 in the figure, that is, on both sides of the split end 21a corresponding to the center of the lower case 40, a lock portion 24a for coupling to lock portions 33a and 33b of the second block 30 described later. 24b is provided. The locking portions 24a and 24b are provided with locking projections 24d having a lower surface as a locking surface at the upper end of the outer surface of the convex portion 24c provided on the outer peripheral surface of the main body portion 21.
[0022] 本体部 21の下面側には第 1ブロック 20に導入されるワイヤハーネス WZH1のコネ クタや端子を接続するためのコネクタ部 25が設けられ、本体部 21の内部には、図 3 ( A)に示すように、コネクタ部 25と電気部品収容部 22との間で所要の回路を構成する バスバー 26が内装されている。本体部 21における分割端 21aの略中央には、後述 の第 2ブロック 30との電気的、機械的な結合をなすための回路接続部 27を設けてい る。回路接続部 27は、図 2 (A) (B)に示すように、その周囲を溝部 27aにより囲まれ た状態で上方へ突出する 2つの端子収容部 27bを備え、この端子収容部 27bにはバ スバー 26に接続された 2つの雌の中継端子 27cを収容している。この中継端子 27c は、相手側端子を上方から受け入れ可能な状態で収容している。回路接続部 27は、 相手側端子を中継端子 27cに接続した状態で第 1ブロック 20と第 2ブロック 30とを結 合するためのロック部 27dを更に備えている。このロック部 27dは、本体部 21の上面 において 2つの端子収容部 27bから中央へ入り込んだ位置に上方へ向けて一体突 設されると共に、係止爪 27e (図 9 (A) (B) )を備えて!/、る。  [0022] On the lower surface side of the main body part 21, a connector part 25 for connecting the connector and terminals of the wire harness WZH1 introduced into the first block 20 is provided. As shown in A), a bus bar 26 constituting a required circuit is internally provided between the connector portion 25 and the electrical component housing portion 22. A circuit connecting portion 27 for making electrical and mechanical coupling with a second block 30 described later is provided at the approximate center of the split end 21a in the main body portion 21. As shown in FIGS. 2 (A) and 2 (B), the circuit connecting portion 27 includes two terminal accommodating portions 27b that protrude upward while being surrounded by a groove portion 27a. Two female relay terminals 27c connected to the bus bar 26 are accommodated. The relay terminal 27c accommodates the counterpart terminal in a state where it can be received from above. The circuit connection portion 27 further includes a lock portion 27d for connecting the first block 20 and the second block 30 with the counterpart terminal connected to the relay terminal 27c. The lock portion 27d is integrally projected upward at a position entering the center from the two terminal accommodating portions 27b on the upper surface of the main body portion 21, and the locking claw 27e (FIGS. 9A and 9B). With /!
[0023] また、図 2 (A)において本体部 21の上部左角部には、第 1ブロック 20に導入される ワイヤハーネス WZH1の電線束の上半分を覆って案内するための半割筒状の上側 固定片 28を所定の斜め外方へ向けて突設している。本体部 21における回路接続部 27の左右両側には別途電気接続箱 10に導入さる電源線 P (図 1 (B) )の端末に取り 付けられた丸形の端子金具 (図示せず)をボルト等により電気的、機械的に接続する ための一対の電源接続用端子 29を備えている。なお、第 1ブロック 20を示す図 2、図 3において電気部品 Eとワイヤハーネス WZH1、 WZH2の記載を省略している箇所 もある力 組付け時にはこれらの部品は予め所定位置に装着されている。 [0023] In FIG. 2A, the upper left corner of the main body 21 has a half-cylindrical shape for covering and guiding the upper half of the wire bundle of the wire harness WZH1 introduced into the first block 20. The upper fixed piece 28 is protruded obliquely outward in a predetermined direction. Round terminal fittings (not shown) attached to the terminals of the power supply line P (Fig. 1 (B)) to be separately introduced into the electrical junction box 10 are bolted to the left and right sides of the circuit connection portion 27 in the main body 21. A pair of power connection terminals 29 are provided for electrical and mechanical connection by, for example. 2 and 3 showing the first block 20, where electrical component E and wire harness WZH1, WZH2 are not shown. There is also a certain force when assembling these parts in place.
[0024] 第 2ブロック 30は、図 4 (A)に示すように、平面視で一方の角部が切り欠かれた方 形状をなし、合成樹脂製の本体部 31の上面には第 1ブロック 20と同様にリレー、ヒュ ーズ等の電気部品 Eを所定位置に装着可能な電気部品収容部 32を設けて 、る。本 体部 31の外周面において図中の上側、即ち、ロアケース 40への装着状態において 第 1ブロック 20に対向する分割端 31aの左右位置には、第 1ブロック 20に設けたロッ ク部 24a、 24bとロック結合するためのロック部 33a、 33bを設けている。このロック部 3 3a、 33bは、外周面に形成した位置決め用の凹部 33c内に設けられ、第 1ブロック 20 のロック部 23a、 23bと同様に、下端を支点として弹性的に橈み可能なロックアーム 3 3dと、ロック爪 33eと力らなって!/ヽる。  [0024] As shown in Fig. 4 (A), the second block 30 has a shape in which one corner is cut out in plan view, and the first block is formed on the upper surface of the synthetic resin main body 31. Similar to 20, an electrical component housing portion 32 is provided in which electrical components E such as relays and fuses can be mounted at predetermined positions. On the outer peripheral surface of the main body 31, the upper side in the drawing, that is, the left and right positions of the divided end 31a facing the first block 20 when mounted on the lower case 40, the lock portions 24a provided on the first block 20, Lock portions 33a and 33b for locking and coupling with 24b are provided. The lock portions 33a and 33b are provided in positioning concave portions 33c formed on the outer peripheral surface, and, like the lock portions 23a and 23b of the first block 20, are locks that can be stowed in an inertial manner with the lower end as a fulcrum. Arm 3 3d and lock claw 33e will help!
また、本体部 31の左右両側面にも、後述するロアケース 40のロック部 42a、 42bと ロック結合するためのロック部 34a、 34bを設けている。これらロック部 34a、 34bも、外 周面に形成した位置決め用の凹部 34c内に設けられ、下端を支点として弾性的に橈 み可能なロックアーム 34dと、ロック爪 34eとからなって!/、る。  Also, lock portions 34a and 34b for locking and coupling with lock portions 42a and 42b of the lower case 40 described later are provided on both the left and right side surfaces of the main body portion 31. These lock portions 34a and 34b are also provided in a positioning recess 34c formed on the outer peripheral surface, and include a lock arm 34d that can be elastically bent with the lower end as a fulcrum, and a lock claw 34e! /, The
さらに、ロック部 33a、 33bが形成された面と反対側、即ち、図 4 (A)の下側の外周 面の中央部および左側部には、後述するロアケース 40の周壁部 43の内面に内方へ 向けて突出する突条 48a、 48bに嵌合可能な凹溝 31b、 31cを形成し、第 2ブロック 3 0をロアケース 40に挿入する際の位置決め用の嵌合構造となしている。  Further, on the opposite side of the surface on which the lock portions 33a and 33b are formed, that is, on the center and left side of the lower outer peripheral surface of FIG. Grooves 31b and 31c that can be fitted to the protrusions 48a and 48b projecting toward the direction are formed, and a fitting structure for positioning when the second block 30 is inserted into the lower case 40 is formed.
[0025] 本体部 31の下面側には、図 4 (B)に示すように、第 2ブロック 30に導入されるワイヤ ハーネス WZH2のコネクタや端子を接続するためのコネクタ部 35が設けられ、本体 部 31の内部には、図 5 (A)に示すように、コネクタ部 35と電気部品収容部 32との間 で所要の回路を構成するバスバー 36が内装されている。本体部 31における分割端 31aの略中央には、第 1ブロック 20の回路接続部 27との電気的、機械的な結合をな すための回路接続部 37を同様に設けている。第 2ブロック 30の回路接続部 37は、 図 5 (B)に示すように、第 1ブロック 20の回路接続部 27における溝部 27aに嵌合可能 な枠部 37aと、この枠部 37a内の端子収容部 37bにおいて、バスバー 36に接続され ると共に上方に立ち上げた後、折り返して下方へ向けて延びる 2つの雄タブ 37cを収 容している。この雄タブ 37cは、第 1ブロック 20の中継端子 27cに対応する位置に配 置され、第 1ブロック 20への第 2ブロック 30の結合時に中継端子 27cに対し雄タブ 37 cが挿入されて電気的に接続可能となっている。 [0025] On the lower surface side of the main body 31, as shown in FIG. 4 (B), a connector 35 for connecting the connector and terminals of the wire harness WZH2 introduced into the second block 30 is provided. As shown in FIG. 5 (A), a bus bar 36 that constitutes a required circuit between the connector part 35 and the electrical component housing part 32 is housed inside the part 31. A circuit connection portion 37 for electrical and mechanical coupling with the circuit connection portion 27 of the first block 20 is similarly provided at the approximate center of the split end 31a in the main body portion 31. As shown in FIG. 5 (B), the circuit connecting portion 37 of the second block 30 includes a frame portion 37a that can be fitted in the groove portion 27a in the circuit connecting portion 27 of the first block 20, and terminals in the frame portion 37a. The housing portion 37b accommodates two male tabs 37c that are connected to the bus bar 36 and raised upward, and then folded back and extended downward. The male tab 37c is arranged at a position corresponding to the relay terminal 27c of the first block 20. When the second block 30 is coupled to the first block 20, the male tab 37c is inserted into the relay terminal 27c so that it can be electrically connected.
[0026] 枠部 37aの外面中央部には、第 1ブロック 20のロック部 27dに係止可能なロック部 3 7dを更に備えている。このロック部 37dは、一端を支点として弹性的に橈み可能な口 ックアーム 37eと、ロック爪 37fからなり、第 1ブロック 20に対し第 2ブロック 30を結合し た時点で、第 1ブロック 20に設けたロック部 27dの係止爪 27eに対しロック爪 37fが係 止するようになっている。  [0026] A lock portion 37d that can be locked to the lock portion 27d of the first block 20 is further provided at the center of the outer surface of the frame portion 37a. The lock portion 37d is composed of a mouth arm 37e that can be squeezed with one end as a fulcrum and a lock claw 37f. When the second block 30 is coupled to the first block 20, the lock portion 37d is attached to the first block 20. The lock claw 37f is engaged with the locking claw 27e of the provided lock portion 27d.
また、第 2ブロック 30の本体部 31の平面視右側面の所要箇所に、第 2ブロック 30に 導入されるワイヤハーネス WZH2の電線束の上半分を覆って案内するための断面 L形状の上側固定片 38を側方へ向けて突設している。  In addition, at the required position on the right side surface of the main body 31 of the second block 30, the upper fixing with an L-shaped cross section for covering and guiding the upper half of the wire bundle of the wire harness WZH2 introduced into the second block 30 The piece 38 protrudes sideways.
なお、第 2ブロック 30を示す図 4、図 5において電気部品 Eとワイヤハーネス WZH 1、 WZH2の記載を省略している箇所もある力 組付け時にはこれらの部品は予め 所定位置に装着されている。  4 and 5 showing the second block 30, there are places where the description of the electrical component E and the wire harnesses WZH 1 and WZH2 is omitted. When assembling, these components are mounted at predetermined positions in advance. .
[0027] ロアケース 40は、図 6 (A) (B)に示すように、合成樹脂製力もなり、周壁部 43と底壁 部 45によって有底箱状に成形され、図 6 (A)に示す平面視の略上半部を第 1ブロッ ク収容部 46、略下半部を第 2ブロック収容部 47としている。第 2ブロック収容部 47は ロアケース 40の左側の領域を少し残して底壁部 45から一体的に立ち上げた仕切壁 43aにより区割りされている。  [0027] As shown in FIGS. 6 (A) and 6 (B), the lower case 40 is also made of synthetic resin and is formed into a bottomed box shape by the peripheral wall portion 43 and the bottom wall portion 45, as shown in FIG. 6 (A). A substantially upper half portion in plan view is a first block housing portion 46 and a substantially lower half portion is a second block housing portion 47. The second block accommodating portion 47 is divided by a partition wall 43a that is integrally raised from the bottom wall portion 45, leaving a little left region of the lower case 40.
[0028] 第 1ブロック収容部 46に収容される第 1ブロック 20を固定するためのロック部 41a、 41bは、図 6 (A)の平面視上側の周壁部 43内面左右位置に設けた突部 41A、 41B に形成されて 、る。同様に第 2ブロック収容部 47に収容される第 2ブロック 30を固定 するためのロック部 42a、 42bは、仕切壁 43aの平面視右側の面に設けた突部 43Aと 、図 6 (A)の平面視右側の周壁部 43内面下側位置に設けた突部 43Bに形成されて いる。これら突部 41A、 41Bおよび突部 43A、 43Bは、第 1ブロック 20および第 2ブロ ック 30の凹部 23c、凹部 34cにそれぞれ対応して位置決め用の嵌合構造をなしてい る。また、ロック部 41a、 41bおよびロック部 42a、 42bは、相手側のロックアーム 23d およびロックアーム 34dのロック爪 23e、ロック爪 34eが係止される係止突起 41d、 43 dを突設している。また、第 2ブロック収容部 47の周壁部 43の内面および仕切壁 43a の平面視右側の面には、第 2ブロック 30の凹溝 31b、 31cに対応する断面半円状の 突条 48a、 48bを突設している。 [0028] The lock portions 41a and 41b for fixing the first block 20 accommodated in the first block accommodating portion 46 are projecting portions provided at the left and right positions of the inner peripheral surface 43 on the upper side in plan view of FIG. 6 (A). 41A and 41B are formed. Similarly, lock portions 42a and 42b for fixing the second block 30 housed in the second block housing portion 47 are a protrusion 43A provided on the right side surface of the partition wall 43a in plan view, and FIG. It is formed on a protrusion 43B provided at a lower position on the inner surface of the peripheral wall 43 on the right side of the plane. The protrusions 41A and 41B and the protrusions 43A and 43B have a fitting structure for positioning corresponding to the recesses 23c and 34c of the first block 20 and the second block 30, respectively. The locking portions 41a and 41b and the locking portions 42a and 42b are provided with locking projections 41d and 43d for locking the locking claw 23e and locking claw 34e of the locking arm 23d and the locking arm 34d on the mating side. Yes. Further, the inner surface of the peripheral wall 43 of the second block housing part 47 and the partition wall 43a On the surface on the right side of the plan view, protrusions 48a and 48b having semicircular cross sections corresponding to the concave grooves 31b and 31c of the second block 30 are provided.
[0029] ロアケース 40の周壁部 43には、図 6 (A)の平面視左上角部に周壁部 43の上端か ら底壁部 45まで切り欠いた電線用開口 49を設け、この電線用開口 49により第 1プロ ック 20に導入されたワイヤハーネス WZH 1の電線束を外部に引き出し可能として!/ヽ る。電線用開口 49には電線束の下半分を覆って案内するための半割筒状の下側固 定片 49aを第 1ブロック 20の上側固定片 28に対応して所定の斜め外方へ向けて突 設している。 [0029] The peripheral wall portion 43 of the lower case 40 is provided with an electric wire opening 49 cut out from the upper end of the peripheral wall portion 43 to the bottom wall portion 45 at the upper left corner of the plan view in FIG. 6 (A). The wire bundle of the wire harness WZH 1 introduced to the first block 20 by 49 can be pulled out! In the wire opening 49, the lower fixed piece 49a in the form of a half cylinder for guiding the lower half of the bundle of wires is guided toward the predetermined diagonally outer side corresponding to the upper fixed piece 28 of the first block 20. Projecting.
同様に、ロアケース 40の平面視右側の周壁部 43にも、上端力も底壁部 45まで切り 欠いた電線用開口 50を設け、この電線用開口 50により第 2ブロック 30に導入された ワイヤハーネス WZH2の電線束を外部に引き出し可能としている。電線用開口 50 には電線束の下部を覆って案内するための断面 L形状の下側固定片 50aを第 2プロ ック 30の上側固定片 38に対応して所定の方向へ向けて突設している。  Similarly, the peripheral wall 43 on the right side of the lower case 40 in the plan view has an electric wire opening 50 with the upper end force cut out to the bottom wall 45, and the wire harness WZH2 introduced into the second block 30 through the electric wire opening 50. Can be pulled out to the outside. A lower fixing piece 50a with an L-shaped cross section for covering and guiding the lower part of the bundle of wires is provided in the electric wire opening 50 so as to project in a predetermined direction corresponding to the upper fixing piece 38 of the second block 30. is doing.
また、ロアケース 40の外面所定位置には、電気接続箱 10を車体に取り付けるため のブラケット BKを突設して 、る。  In addition, a bracket BK for attaching the electrical junction box 10 to the vehicle body is provided at a predetermined position on the outer surface of the lower case 40.
[0030] ロアケース 40における電線用開口 49の周縁部には底壁部 45から上方へ向けて筒 状仮固定部 51を突設する一方、第 1ブロック 20には、図 3 (A) (B)に示すように、筒 状仮固定部 51に上方力も挿入可能な仮固定リブ 52を本体部 21の底部力も一体突 設している。仮固定リブ 52は筒状仮固定部 51の中空部に内嵌する径の棒状とし、図 9 (C)に示すように先端を縮径させている。なお、仮固定リブ 52は先端に限らず長さ 方向の全長に亙って徐徐に縮径させた形状としてもよい。この筒状仮固定部 51と仮 固定リブ 52との嵌合構造は、電線用開口 49の形成に伴う強度低下によって外方へ 開き易くなつた周壁部 43を補強して外方への開きを防止する作用を奏するものであ る。 [0030] On the periphery of the opening 49 for the electric wire in the lower case 40, a cylindrical temporary fixing portion 51 protrudes upward from the bottom wall portion 45. On the other hand, the first block 20 has a configuration shown in FIGS. ), A temporary fixing rib 52 that can be inserted into the cylindrical temporary fixing portion 51 with an upward force is also provided integrally with the bottom portion force of the main body 21. The temporary fixing rib 52 has a rod shape with a diameter that fits into the hollow portion of the cylindrical temporary fixing portion 51, and has a reduced diameter at the tip as shown in FIG. 9 (C). The temporary fixing rib 52 may have a shape in which the diameter is gradually reduced not only at the tip but also along the entire length in the length direction. The fitting structure between the cylindrical temporary fixing part 51 and the temporary fixing rib 52 reinforces the peripheral wall part 43 that is easy to open outward due to a decrease in strength due to the formation of the opening 49 for the electric wire. It has an action to prevent.
また、ロアケース 40の仕切壁 43aには、図 6 (A)の平面視左側の面にジョイントコネ クタ取付用のロック部 53を 2つ設けている。該ロック部 53に取り付けられるジョイントコ ネクタ(図示せず)に接続されたワイヤハーネス(図示せず)も前記電線用開口 49を 通して外部に弓 Iき出し可能として 、る。 [0031] 次に分割された電気接続箱 10の組立方法について説明する。 In addition, the partition wall 43a of the lower case 40 is provided with two lock portions 53 for mounting the joint connector on the left side in a plan view of FIG. 6 (A). A wire harness (not shown) connected to a joint connector (not shown) attached to the lock portion 53 can also be pierced outside through the wire opening 49. [0031] Next, a method for assembling the divided electrical junction box 10 will be described.
先ず、図 8 (A)に示すように、ロアケース 40のロック部 53に取り付けたジョイントコネ クタのワイヤハーネスの電線束と第 1ブロック 20のワイヤハーネス WZH1の電線束を ロアケース 40の電線用開口 49から外方へ引き出すようにして、ロアケース 40の第 1 ブロック収容部 46に第 1ブロック 20を挿入して押圧する。この操作に伴い、第 1ブロッ ク 20のロアケース固定用のロック部 23a、 23bと、ロアケース 40内面のロック部 41a、 41bとの間において、図 8 (B)に示すように、ロックアーム 23dが橈んでロック爪 23eが 係止突起 41dに係止することでロアケース 40に対し第 1ブロック 20がロック固定され る。これと同時に、図 8 (C)に示すように、ロアケース 40の筒状仮固定部 51に第 1ブ ロック 20の仮固定リブ 52が挿入されることにより、電線用開口 49が形成された周壁 部 43の外方への開きが防止される。これら筒状仮固定部 51と仮固定リブ 52とを嵌合 する際には、近傍にジョイントコネクタに接続されたワイヤハーネスが配索されている 力 通常のロック部と異なり、筒状の仮固定部 51に仮固定リブ 52を挿入する構成とし ているため、これらの嵌合の際にワイヤハーネスをかみ込むことがない。なお、第 1ブ ロック収容部 46への第 1ブロック 20の嵌合操作に際し、ロアケース 40の突部 41A、 4 IBに対する第 1ブロック 20の凹部 23cの位置を合わせることで、第 1ブロック 20の嵌 合の向きが正しい方向に規制される。また、外部に引き出されたワイヤハーネス WZ HIとジョイントコネクタに接続されたワイヤハーネスの電線束はロアケース 40の下側 固定片 49aと第 1ブロック 20の上側固定片 28との間に配置しておく。  First, as shown in FIG. 8 (A), the wire bundle of the wire harness of the joint connector attached to the lock portion 53 of the lower case 40 and the wire bundle of the wire harness WZH1 of the first block 20 are connected to the wire opening of the lower case 40. The first block 20 is inserted into the first block housing portion 46 of the lower case 40 and pressed so as to be pulled out from the outside. As a result of this operation, the lock arm 23d is moved between the lock parts 23a, 23b for fixing the lower case of the first block 20 and the lock parts 41a, 41b on the inner surface of the lower case 40 as shown in FIG. The first block 20 is locked and fixed to the lower case 40 by squeezing and locking the locking claw 23e to the locking projection 41d. At the same time, as shown in FIG. 8C, the peripheral wall in which the wire opening 49 is formed by inserting the temporary fixing rib 52 of the first block 20 into the cylindrical temporary fixing portion 51 of the lower case 40. Opening of part 43 to the outside is prevented. When fitting these cylindrical temporary fixing parts 51 and temporary fixing ribs 52, the wire harness connected to the joint connector is routed in the vicinity. Unlike normal locking parts, the cylindrical temporary fixing parts Since the temporary fixing rib 52 is inserted into the portion 51, the wire harness is not bitten during the fitting. When the first block 20 is fitted into the first block housing portion 46, the position of the recess 23c of the first block 20 with respect to the protrusions 41A and 4IB of the lower case 40 is adjusted to match the position of the first block 20. The fitting direction is regulated in the correct direction. The wire harness WZ HI drawn out and the wire bundle of the wire harness connected to the joint connector are arranged between the lower fixed piece 49a of the lower case 40 and the upper fixed piece 28 of the first block 20. .
[0032] 次に、第 2ブロック 30のワイヤハーネス WZH2をロアケース 40の電線用開口 50か ら外部へ引き出すようにして下側固定片 50aと上側固定片 38との間に配置すると共 に、第 2ブロック収容部 47に対し第 2ブロック 30を挿入して押圧する。この操作に伴 い、第 2ブロック 30のロアケース固定用のロック部 34a、 34bと、ロアケース 40のロック 部 42a、 42bとの間において、ロックアーム 34dが橈んでロック爪 34eが係止突起 43d に係止することでロアケース 40に対し第 2ブロック 30がロック固定される。これと同時 に、第 2ブロック 30のロック咅 33a、 33bのロックアーム 33d力 S燒んで、ロック爪 33e力 S 第 1ブロック 20のロック部 24a、 24bの係止突起 24dに係止することで第 1ブロック 20 と第 2ブロック 30とがロック結合される。第 2ブロック収容部 47への第 2ブロック 30の嵌 合操作に際しては、ロアケース 40の突部 43A、 43Bと第 2ブロック 30の凹部 34c、口 ァケース 40の突条 48a、 48bと第 2ブロック 30の凹溝 3 lb、 31cをそれぞ; tl^立置合わ せすることで、第 2ブロック 30の向きを規制すると共に、嵌合後の安定ィ匕を図ることが できる。 [0032] Next, the wire harness WZH2 of the second block 30 is arranged between the lower fixed piece 50a and the upper fixed piece 38 so as to be pulled out from the electric wire opening 50 of the lower case 40, and The second block 30 is inserted into the two-block housing portion 47 and pressed. As a result of this operation, the lock arm 34d is pinched between the lock portions 34a and 34b for fixing the lower case of the second block 30 and the lock portions 42a and 42b of the lower case 40, and the lock pawl 34e is moved to the locking projection 43d. The second block 30 is locked to the lower case 40 by locking. At the same time, the lock arm 33d of the second block 30 33a, the lock arm 33d force 33d force S of the lock block 33e force S and the lock projection 24d of the lock part 24a, 24b of the first block 20 is locked. The first block 20 and the second block 30 are lock-coupled. Fitting of the second block 30 into the second block housing part 47 For the joint operation, the protrusions 43A and 43B of the lower case 40 and the concave part 34c of the second block 30 and the protrusions 48a and 48b of the upper case 40 and the concave grooves 3 lb and 31c of the second block 30 are respectively provided. By arranging them, it is possible to regulate the orientation of the second block 30 and to achieve stability after fitting.
[0033] 前記操作と同時に、第 1ブロック 20の回路接続部 27と第 2ブロック 30の回路接続 部 37との間において、両者間の電気的、機械的接続が行われる。即ち、ロアケース 4 0に先入れした第 1ブロック 20の回路接続部 27における溝部 27aに第 2ブロック 30の 回路接続部 37における枠部 37aが上方力も嵌合すると共に、図 9 (A) (B)に示すよう に、第 1ブロック 20の端子収容部 27b内の中継端子 27cに対し、第 2ブロック 30の端 子収容部 37b内の雄タブ 37cが順次挿入される。そして、第 1ブロック 20に対し、第 2 ブロック 30が完全嵌合するとき、回路接続部 37のロックアーム 37eが橈んでロック爪 37fが回路接続部 27の係止爪 27eに係合し、これにより第 1ブロック 20のロック部 27 dと第 2ブロック 30のロック部 37dがロック結合される。そして、同時に第 1ブロック 20 の中継端子 27cに第 2ブロック 30の雄タブ 37cが完全挿入されることで、中継端子 2 7cと雄タブ 37cを介して第 1ブロック 20の内部回路を構成するバスバー 26と第 2ブロ ック 30の内部回路を構成するバスバー 36が電気的に接続される。  Simultaneously with the above operation, electrical and mechanical connection between the circuit connecting portion 27 of the first block 20 and the circuit connecting portion 37 of the second block 30 is performed. That is, the frame portion 37a in the circuit connection portion 37 of the second block 30 is fitted into the groove portion 27a in the circuit connection portion 27 of the first block 20 in advance in the lower case 40, and the upward force is also fitted. ), The male tab 37c in the terminal accommodating portion 37b of the second block 30 is sequentially inserted into the relay terminal 27c in the terminal accommodating portion 27b of the first block 20. Then, when the second block 30 is completely engaged with the first block 20, the lock arm 37e of the circuit connection portion 37 is pinched and the lock claw 37f engages with the locking claw 27e of the circuit connection portion 27. As a result, the lock portion 27d of the first block 20 and the lock portion 37d of the second block 30 are lock-coupled. At the same time, when the male tab 37c of the second block 30 is completely inserted into the relay terminal 27c of the first block 20, the bus bar configuring the internal circuit of the first block 20 via the relay terminal 27c and the male tab 37c. 26 and the bus bar 36 constituting the internal circuit of the second block 30 are electrically connected.
[0034] このようにして、共通のロアケース 40に対し第 1ブロック 20と第 2ブロック 30がロック 結合された後、図 1 (A)に示すように、ロアケース 40の電線用開口 49、 50から引き出 されたワイヤハーネス WZH1とジョイントコネクタに接続されたワイヤハーネス、ワイ ャハーネス WZH2の電線束を上側固定片 28、 38と下側固定片 49a、 50aとの間に 挟んだ状態でテープ Tにより巻き付け固定することで、電線束を上側固定片 28、 38 と下側固定片 49a、 50aとの間に固定する。このようにして一連の接続作業を完了し た後、ロアケース 40の上面開口部に対しアッパーケース(図示せず)を被せて電気部 品収容部 22、 32を保護するようにしている。  [0034] In this way, after the first block 20 and the second block 30 are locked and coupled to the common lower case 40, as shown in Fig. 1 (A), from the wire openings 49, 50 of the lower case 40 Wound wire harness WZH1 pulled out, wire harness connected to joint connector, wire harness WZH2 wire bundle wrapped with tape T with upper fixed pieces 28, 38 and lower fixed pieces 49a, 50a sandwiched By fixing, the wire bundle is fixed between the upper fixing pieces 28 and 38 and the lower fixing pieces 49a and 50a. After completing a series of connection operations in this manner, the upper case opening (not shown) is placed on the upper surface opening of the lower case 40 to protect the electrical component housing units 22 and 32.
[0035] 以上のように、共通のロアケース 40に対し、第 1ブロック 20と第 2ブロック 30とを順 次所定位置に挿入してロック結合するのみの簡易な操作によって、分割された各ブ ロックの電気的、機械的な結合を達成することができる。  [0035] As described above, each of the divided blocks can be obtained by a simple operation in which the first block 20 and the second block 30 are sequentially inserted into the predetermined lower position and locked to the common lower case 40. Electrical and mechanical coupling can be achieved.
なお、前記実施形態では、電気接続箱を二つのブロックに分割した例を示したが、 3つ以上のブロックに分割してもよぐこの場合においても同様の構造により対応する ことができる。また、前記実施形態の図面では第 1ブロック、第 2ブロックの電気部品 収容部 22、 32に収容されるヒューズ、リレー、コネクタ等の細かい電気部品の図示を 省略しているが、通常はブロックの結合前に電気部品は予め装着されるようになって いる。 In the above embodiment, an example in which the electrical junction box is divided into two blocks is shown. Even in this case, which can be divided into three or more blocks, the same structure can be used. Further, in the drawings of the above-described embodiment, illustration of fine electrical components such as fuses, relays, connectors, etc. accommodated in the electrical component accommodating portions 22 and 32 of the first block and the second block is omitted. The electrical components are pre-installed before joining.
また、本実施形態ではワイヤハーネス W/H1、 2をロアケースの電線用開口の周縁 に突設した下側固定片と第 1、第 2ブロックに設けた上側固定片とにテープ巻き固定 しているが、バンド巻き固定としてもよいし、テープ巻き固定とバンド巻き固定とを併用 してちよい。  In this embodiment, the wire harnesses W / H1 and 2 are taped and fixed to a lower fixing piece protruding from the periphery of the lower case electric wire opening and an upper fixing piece provided to the first and second blocks. However, band winding fixing may be used, and tape winding fixing and band winding fixing may be used in combination.

Claims

請求の範囲 The scope of the claims
[1] 電気接続箱本体を分割して設けた複数のブロックと、これら複数のブロックを収容 する 1つのロアケースとを備え、  [1] It has a plurality of blocks provided by dividing the electric junction box main body, and a single lower case that accommodates the plurality of blocks.
前記分割されたブロックは、それぞれバスバーが収容されていると共にリレー、ヒュ ーズあるいは Zおよび電線に接続されたコネクタが装着され、これらブロックの分割 端には前記バスバー同士を接続させる回路接続部が設けられていると共にブロック 同士を結合するロック部が設けられ、かつ、これらブロックの外周面にはロアケース結 合用のロック部が設けられ、  Each of the divided blocks accommodates a bus bar, and a connector connected to a relay, fuse, or Z and an electric wire is mounted. And a lock part for connecting the blocks to each other, and a lock part for lower case connection is provided on the outer peripheral surface of these blocks.
前記ロアケース結合用のロック部がロアケースの壁部に設けたロック部に結合され て!、ることを特徴とする電気接続箱。  The electrical connection box, wherein the lock part for coupling the lower case is coupled to a lock part provided on the wall of the lower case!
[2] 前記電気接続箱本体を 2分割して、第 1ブロックと第 2ブロックとからなる前記ブロッ クを設けており、  [2] The electric junction box body is divided into two, and the block including the first block and the second block is provided.
前記第 1ブロックと第 2ブロックとの分割端に前記回路接続部が設けられ、第 1プロ ック側の第 1バスバーに設けられた端子と第 2ブロック側の第 2バスバーに設けられた 端子とが嵌合接続され、該回路接続部の両側に第 1ブロックと第 2ブロックとを結合す るロック部を備えて 、る請求項 1に記載の電気接続箱。  The circuit connection portion is provided at a split end of the first block and the second block, and a terminal provided on the first bus bar on the first block side and a terminal provided on the second bus bar on the second block side 2. The electrical connection box according to claim 1, further comprising a lock portion that couples the first block and the second block to both sides of the circuit connection portion.
[3] 前記ロアケースの周壁部の一部を上端力 底壁部まで切り欠いて、前記ブロックに 接続された電線束を弓 Iき出す電線用開口が設けられ、該電線用開口の周縁の底壁 部から筒状仮固定部を突設する一方、前記第 1ブロックに前記筒状仮固定部に嵌合 される仮固定リブが突設され、該仮固定リブを前記筒状仮固定部に嵌合することで 前記電線用開口の開きが防止される構成として ヽる請求項 2に記載の電気接続箱。 [3] A part of the peripheral wall portion of the lower case is notched to the bottom wall portion with an upper end force, and an opening for the electric wire is provided to bow out the electric wire bundle connected to the block, and the bottom of the peripheral edge of the electric wire opening While the cylindrical temporary fixing portion protrudes from the wall portion, a temporary fixing rib that fits into the cylindrical temporary fixing portion protrudes from the first block, and the temporary fixing rib is connected to the cylindrical temporary fixing portion. The electrical junction box according to claim 2, wherein the electrical connection box is configured to prevent the opening for the electric wire from being opened by fitting.
[4] 請求項 1乃至請求項 3の 、ずれか 1項に記載の電気接続箱の組立方法であって、 前記ロアケース内に 1つの前記ブロックを挿入し、該ブロックのロアケース固定用口 ック部と前記ロアケースの内面に設けたロック部とを嵌合ロックして固定し、 [4] The method for assembling an electric junction box according to any one of claims 1 to 3, wherein one block is inserted into the lower case, and the lower case fixing port of the block is inserted. Fitting and locking the part and the lock part provided on the inner surface of the lower case,
次いで、他のブロックを前記ロアケース内に挿入し、該ブロックと先入れした前記ブ ロックとのロック結合と、該ブロックと口 ゲースとのロック結合と、ブロック同士の回路 接続部のロック部によるノ スバーの接続とを前記挿入作業時に同時に行うことを特徴 とする電気接続箱の組立方法。 請求項 3に記載の電気接続箱の組立方法であって、 Next, another block is inserted into the lower case, and the lock connection between the block and the block inserted in advance, the lock connection between the block and the gate case, and the lock part of the circuit connection part between the blocks are provided. A method for assembling an electrical junction box, wherein the connection of the sbar is performed simultaneously with the insertion operation. An assembly method for an electrical junction box according to claim 3,
前記ロアケース内に第 1ブロックを挿入し、該第 1ブロックのロアケース固定用ロック 部と前記ロアケースの内面に設けたロック部とを嵌合ロックして固定すると共に、前記 ロアケースの筒状仮固定部に第 1ブロックの仮固定リブを挿入し、  The first block is inserted into the lower case, and the lower case fixing lock portion of the first block and the lock portion provided on the inner surface of the lower case are fitted and locked, and the cylindrical temporary fixing portion of the lower case Insert the first block temporary fixing rib into the
該第 1ブロックに接続された電線束をロアケースの前記電線用開口より外部に引き 出し、  Pull the wire bundle connected to the first block to the outside from the wire opening in the lower case,
次いで、前記第 2ブロックを前記ロアケース内に挿入し、該第 2ブロックを先入れし た前記第 1ブロックと第 2ブロックの回路接続部のロック部によるバスバーの接続とを 前記挿入作業時に同時に行い、  Next, the second block is inserted into the lower case, and the first block in which the second block is inserted is connected to the bus bar by the lock portion of the circuit connecting portion of the second block at the same time as the insertion operation. ,
前記第 2ブロックに接続された電線束を前記ロアケースの電線用開口から外部に引 き出し、  Pull the wire bundle connected to the second block to the outside from the wire opening of the lower case,
次いで、電線用開口から引き出される第 1、第 2ブロックに接続された電線束を前記 ロアケースと第 1、第 2ブロックとから突設した下側固定片と上側固定片の間に挟んで テープ巻き固定あるいは Zおよびバンド巻き固定している電気接続箱の組立方法。  Next, the wire bundle connected to the first and second blocks drawn out from the wire opening is sandwiched between the lower fixing piece and the upper fixing piece protruding from the lower case and the first and second blocks, and then wound with tape. Assembly method of electric junction box fixed or Z and band winding fixed.
PCT/JP2006/312587 2005-07-15 2006-06-23 Electric connection box and method of assembling electric connection box WO2007010710A1 (en)

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KR100894162B1 (en) 2007-11-01 2009-04-22 한국단자공업 주식회사 Cover fastening structure of box
JP5815267B2 (en) 2011-04-04 2015-11-17 矢崎総業株式会社 Wire lead-out structure for tape winding
JP5805977B2 (en) 2011-04-04 2015-11-10 矢崎総業株式会社 Tape winding structure of the wire outlet
JP5798361B2 (en) 2011-04-20 2015-10-21 矢崎総業株式会社 Structure for preventing tape slippage at the wire outlet

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JP2001156469A (en) * 1999-11-30 2001-06-08 Yazaki Corp Electric joint box
JP2001185869A (en) * 1999-12-24 2001-07-06 Yazaki Corp Electric junction box
JP2001314023A (en) * 2000-04-28 2001-11-09 Yazaki Corp Electric junction box

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JPH103957A (en) * 1996-06-13 1998-01-06 Sumitomo Wiring Syst Ltd Terminal connection structure between electrical connection boxes
JP2001156469A (en) * 1999-11-30 2001-06-08 Yazaki Corp Electric joint box
JP2001185869A (en) * 1999-12-24 2001-07-06 Yazaki Corp Electric junction box
JP2001314023A (en) * 2000-04-28 2001-11-09 Yazaki Corp Electric junction box

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JP2008199840A (en) * 2007-02-15 2008-08-28 Yazaki Corp Electric connection box

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