JP2017099134A - Electrical connection box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrical connection box that can stably secure routing of an electrical wire group in a case and has excellent workability in fabrication work and electrical connection work.SOLUTION: In an electrical connection box including a case main body 21 for housing connection blocks 31 to 34, a cover member that is supported by the case main body 21 and forms an opening portion, and an electric wire group 13 that is connected to the connection blocks 31 to 34 and protrudes to the outside of the case through the opening portion, one end portion 13a of the electric wire group 13 is divided into electric wire bundles 36 to 39, and a route regulating guide member 25 for regulating the wiring route of the electric wire bundles 36 to 39 is disposed between the case main body 21 and the cover member, the route regulating guide member 25 includes block holding portions 51a to 51d for holding the connection blocks 31 to 34, electric wire bundle fixing portions 52a to 52d for fixing the electric wire bundles 36 to 39 at predetermined positions on the wiring route, and an electric wire guide portion 53 for assembling the electric wire bundles 36 to 39 at an inner deep side at which the electrical wire bundles can be introduced in the radial direction of the bundles.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electrical junction box, and more particularly to an electrical junction box suitable for a power distribution unit mounted on a vehicle.

  While electrical connection boxes such as relay boxes for vehicles require a reduction in mounting space, it is necessary to cope with an increase in the number of on-board electrical equipment and multi-functionality, and many electric wire groups are inserted in a narrow case. Each is connected to a relay or the like. Then, the electrical junction box devised so that it may suppress that many electric wire groups are complicated is proposed.

  As this type of electrical junction box, for example, a power distribution unit having a plurality of mounting parts such as relays on the upper surface side is housed in a frame-like case, and a part of the case is connected to the lower surface side of the power distribution unit. There is known one provided with a guide wall section that divides the electric wire group into unit electric wire groups for each connector (for example, see Patent Document 1).

  In addition, the power distribution unit is composed of a plurality of blocks, and a plurality of wire bundles connected to the blocks are led out of the case through the grommets, and the electric wires for each block are formed on a part of the divided cylindrical body constituting the grommets. What provided the division wall which divides a group is also known (for example, refer patent document 2).

JP 2010-51094 A JP 2000-13156 A

  However, in the conventional electrical junction box as described above, in the vicinity of the opening where the wire group is led out of the case or introduced into the case, that is, in the vicinity of the harness entrance / exit, the wire group becomes a unit wire group or the like. Although it is partitioned and appropriately aligned, the wire group in which the connection position to the power distribution unit is away from the harness entrance is complicated in the case. Therefore, there was a problem that the assembly workability deteriorated because these wire groups hindered the wire connection work by a connector or the like.

  In addition, the wire group has a surplus portion for routing and connector connection work, etc., but the wire group is configured to be complicated in the case, so the surplus length setting of the wire group entering the inner back side of the case In addition, the extra length adjustment during assembly is not easy, and the workability of the mounting work is not good.

  The present invention has been made in order to solve such a conventional unsolved problem, and it is possible to stably secure the route of the electric wire group in the case, and an electrical junction box excellent in workability of assembly work and electrical connection work. The purpose is to provide.

  In order to achieve the above object, the electrical junction box according to the present invention has a plurality of connection blocks each having a wire connection portion on the lower surface side, a case main body that houses the plurality of connection blocks, and the lower surfaces of the plurality of connection blocks. A cover member that is supported by the case main body so as to cover the side and that forms an opening between the case main body, one end connected to the electric wire connection portion of the plurality of connection blocks, and the opening An electric connection box comprising a case body and a wire group having a remaining portion protruding outside from the cover member, wherein the one end portion of the wire group is connected to a plurality of wire bundles connected to the plurality of connection blocks. In addition to being divided, a path regulation guide member that regulates a wiring path of the plurality of wire bundles is disposed between the case body and the cover member. The path regulation guide member fixes a plurality of block holding sections that hold the plurality of connection blocks, and the plurality of electric wire bundles at predetermined positions on a wiring path between the plurality of block holding sections and the opening. A plurality of wire bundle fixing portions, a concave shape capable of introducing the plurality of wire bundles in the respective bundle radial directions, and a wire guide portion capable of collecting the plurality of wire bundles on the inner back side. It is characterized by having.

  With this configuration, in the present invention, each connection block is held by the corresponding block holding portion of the path restriction guide member, and the wire bundle is held by the corresponding wire bundle fixing portion of the path restriction guide member and the opening portion. It is fixed at a predetermined position on the wiring path. Therefore, the electric wire group whose connection position is away from the opening does not become complicated in the case, and the electric wire group does not hinder the connection work. In addition, since the wire group is wired along a preset wiring route as a bundle of wires for each connection block, the extra length set for routing, connector connection work, etc. can be set easily and accurately. It becomes possible.

  In the electric junction box of the present invention, the wire guide portions are connected to each other on the inner back side, and have a plurality of guide grooves extending in different directions from the inner back side, and the plurality of guides Any one of the grooves may be formed by cutting out an outer peripheral wall surface of the path regulation guide member.

  In addition, the plurality of block holding portions each include a lock mechanism that holds the plurality of connection blocks while preventing the plurality of connection blocks from being separated from each other across the end portions on the lower surface side of the plurality of connection blocks. The holding portion and the plurality of wire bundle fixing portions may be connected to each other by a bottom wall portion of the path regulation guide member facing the end portion on the lower surface side.

  Further, the plurality of connection blocks and the electric wire group may constitute a power distribution unit mounted on a vehicle.

  ADVANTAGE OF THE INVENTION According to this invention, the path | route of the electric wire group in a case can be ensured stably, and the electrical junction box excellent in workability | operativity of an assembly operation or an electrical connection operation can be provided.

It is a principal part bottom view which shows the state which removed the lower cover from the case main body of the electrical junction box which concerns on one embodiment of this invention. It is a bottom view of the path | route control guide member in the electrical junction box which concerns on one embodiment of this invention. It is a perspective view of the path regulation guide member in the electrical junction box concerning one embodiment of the present invention. (A) is an IVA-IVA arrow sectional drawing of FIG. 2, (b) is an IVB-IVB arrow sectional drawing of FIG. It is a side view of the path | route control guide member in the electrical junction box which concerns on one embodiment of this invention. It is a principal part side view which shows the state which attached the lower cover to the case main body of the electrical junction box which concerns on one embodiment of this invention, and removed the upper cover. It is a principal part perspective view which shows the state which attached the lower cover to the case main body of the electrical junction box which concerns on one embodiment of this invention, and removed the upper cover. It is a bottom view before the electric wire group mounting | wearing of the electrical junction box which concerns on one embodiment of this invention.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

(One embodiment)
1 to 8 show an electrical junction box 10 according to an embodiment of the present invention.

  The electrical junction box 10 is interposed between a plurality of electrical components mounted on a vehicle and a power source such as a battery. For example, a distribution unit for supplying and distributing electrical components such as a headlamp and a wiper, a so-called relay Configured as a box.

  The electrical junction box 10 includes a plurality of mounting parts 11 (see FIG. 7) such as a plurality of switching devices for power distribution. These mounting components 11 are, for example, relays and fuses, or further include an electronic control unit (hereinafter referred to as an ECU) that exerts a control function of on-vehicle electrical components. However, the configuration of the mounting component 11 is the same as that of a publicly known one, and the in-vehicle electrical component is not limited to a specific one.

  In addition to the plurality of mounting components 11, the electrical junction box 10 is connected to the mounting component 11 by being drawn into the case 12 made of a resin (synthetic resin) for housing the mounting components 11, respectively. And an electric wire group 13 having a plurality of covered electric wires that serve as power supply lines from the power supply side to the mounting component 11, distribution lines to the in-vehicle electrical component side, and the like.

  As shown in FIGS. 6 to 8, the case 12 includes a substantially polygonal frame-shaped case main body 21 that houses a plurality of mounting components 11, a first cover member 22 that can be attached to and removed from the top and bottom of the case main body 21, and a first cover member 22. 2 cover member 23 (cover member).

  The case main body 21 is open at both upper and lower ends, and the case cover main body 21 is attached to and detached from the upper side of the case main body 21 via a plurality of lock claw portions 21b (see FIG. 7). The mounting surface side of the plurality of mounting components 11 in 21 can be opened and closed.

  Further, the case main body 21 has a plurality of electric wire groups 13 drawn into the case main body 21 and a plurality of wires by attaching and detaching the second cover member 23 to the lower side of the case main body 21 via a plurality of lock claw portions 21c (see FIG. 1). The connection surface side with the mounting component 11 can be opened and closed.

  The second cover member 23 forms a cylindrical portion 24 having an opening 24 a together with the case main body 21 in a state where the second cover member 23 is mounted on the lower side of the case main body 21, and the electric wire passes through the opening 24 a of the cylindrical portion 24. The group 13 is drawn into the case 12.

  As shown in FIGS. 1 and 5, the plurality of mounting components 11 are specifically configured as a plurality of connection blocks 31, 32, 33, and 34 that are blocked according to their component functions and power distribution destinations. The block unit is detachably held with respect to the case body 21.

  Further, the one end portion 13 a of the wire group 13 drawn into the case 12 is divided into a plurality of wire bundles 36, 37, 38 and 39 corresponding to the plurality of connection blocks 31 to 34. The other end portion (not shown) of the remaining portion 13b of the electric wire group 13 protruding outward from the case 12 is mounted with, for example, an in-vehicle electrical component actuator, a headlamp, or a connector for connecting to an electrical load. Yes.

  The plurality of wire bundles 36 to 39 are connected to wire connection portions 31a, 32a, 33a, and 34a such as connection terminals and connectors (not shown) on the lower surface side of the connection blocks 31 to 34, respectively. In addition, in FIG. 1, although each electric wire connection part 31a-34a is shown by three squares, the form and number of connections are arbitrary.

  As described above, the electrical junction box 10 is formed by forming the cylindrical portion 24 on the case 12 having the case main body 21, the first cover member 22, and the second cover member 23, and the case 12 passes through the cylindrical portion 24. The electric wire group 13 is drawn in. And the electric wire group 13 comprises the wire harness for the power distribution from the above-mentioned power supply to each vehicle-mounted electrical component.

  On the other hand, between the case main body 21 of this case 12 and the 2nd cover member 23, the wiring path | route of several electric wire bundles 36-39 so that the electric wire connection part 31a-34a of several connecting blocks 31-34 may be covered. A path regulation guide member 25 for regulating the movement is provided.

  As shown in FIGS. 1 to 4, the path regulation guide member 25 has a plurality of fitting projections 25 a on the outer peripheral surface, and the path projection guide member 25 is connected to the case main body 21. When it is inserted into the opening on the lower end side of the case, it is detachably fitted into a plurality of fitting recesses 21 a provided on the inner peripheral wall of the case body 21.

  Further, the path regulation guide member 25 has a substantially funnel shape in which the lower end portion in FIG. 3 (which becomes the upper end side in use) is opened widely and the upper end portion in FIG. 3 is opened small. The outer peripheral shape on the upper end side in use corresponds to the opening shape on the lower end side of the case main body 21.

  And the path | route control guide member 25 fixes the some block holding | maintenance part 51a, 51b, 51c, 51d which can hold | maintain the some connection block 31-34, and the some wire bundle 36-39 in the predetermined position of a length direction. A plurality of wire bundle fixing portions 52a, 52b, 52c, 52d that can be guided, and a plurality of wire bundles 36 to 39 that can be guided to be introduced into the tubular portion 24 while moving in the bundle radial direction. And a guide portion 53.

  The plurality of block holding portions 51 a to 51 d are a plurality of facing wall portions 55 a, 55 b, 55 c, 55 d, and 55 e that face each other with any one of the plurality of connection blocks 31 to 34 interposed therebetween when the electrical connection box 10 is assembled. The locking mechanism includes a plurality of sets of claw-like engaging projections 56a, 56b, 56c, and 56d that protrude in a direction approaching each other from the opposing wall portions 55a to 55e and hold the plurality of connection blocks 31 to 34 so as not to be detached. 56.

  The plurality of block holding portions 51a to 51d are bottom walls that integrally couple the opposing wall portions 55a to 55e while facing the wire connection portions 31a to 34a of the plurality of connection blocks 31 to 34 with a predetermined wiring gap therebetween. And a block guide portion 57a, 57b, 57c, 57d that regulates the holding position by restricting the movement of the plurality of connection blocks 31-34 in the wall surface direction of the facing wall portions 55a-55e. In the bottom wall portion 56e, escape holes (not shown) for forming the plurality of engaging convex portions 56a to 56d are formed.

  The plurality of wire bundle fixing portions 52a, 52b, 52c, and 52d are respectively disposed at predetermined positions on the plurality of wiring paths between the plurality of block holding portions 51a to 51d and the opening 24a of the cylindrical portion 24. Shaped protrusions. The plurality of wire bundle fixing portions 52a to 52d are integrally supported by one of the plurality of rib-like wall portions 55r of the path regulation guide member 25 that is continuous or parallel to the opposing wall portions 55a to 55e or the bottom wall portion 56e. ing.

  In addition, each of the wire bundle fixing portions 52a to 52d protrudes from the rib-like wall portion 55r or the bottom wall portion 56e at the base end portion, and the distal end side in the protruding direction is bent or bent toward the bottom wall portion 56e side. Yes. Therefore, the plurality of wire bundle fixing portions 52a to 52d can restrain and fix the plurality of wire bundles 36 to 39 on the bottom wall portion 56e at predetermined positions of the respective wiring paths. In addition, you may provide another electric wire bundle fixing | fixed part which can restrain or guide at least one of the electric wire bundles 36-39 to the fixed position in the opening part 24a in the inner peripheral wall surface side of the cylindrical part 24. FIG.

  The wire guide part 53 passes between the plurality of block holding parts 51a to 51d and extends along the plurality of wire bundle fixing parts 52a to 52d, and the guide grooves 53a and 53b. And a collective hole 53c to be coupled.

  Further, the wire guide portion 53 has a cylindrical portion 53f that forms a collecting hole 53c while being divided into a plurality of divided cylindrical portions 53d and 53e by a plurality of guide grooves 53a and 53b. Is inserted into the cylindrical portion 24 of the case 12.

  As a result, the wire guide portion 53 has a substantially fork-like groove shape in which a plurality of guide grooves 53a and 53b are continuous to the collecting hole 53c and the opening 24a of the cylindrical portion 24, respectively, and the collecting hole 53c on the inner back side thereof. In addition, the wire bundles 36 to 39 can be introduced and assembled in the opening 24a.

  Further, the guide groove 53a has an electric wire bundle insertion port 53g in which the outer peripheral wall on the upper end side of the path regulation guide member 25 is partially cut out on the distal end side away from the collecting hole 53c. A plurality of wire bundles 36 to 39 are introduced from the opening 53g.

  The guide groove 53a further has a widened portion 53h in which the bottom wall portion 56e is cut out to such an extent that a connector or the like can be inserted in the vicinity of the wire bundle insertion port 53g.

  Depending on the specifications of the wire harness, as shown by an imaginary line in FIG. 2, the outer peripheral wall on the upper end side of the path regulation guide member 25 may be connected without being cut out, and the widened portion 53h may be used as the wire bundle insertion port. Conceivable.

  Next, the path regulation of the plurality of wire bundles 36 to 39 by the path regulation guide member 25 and the procedure for assembling them will be described.

  First, the wire group 13 is divided into wire bundles 36 to 39 corresponding to the plurality of connection blocks 31 to 34 in advance, and connection terminals and connectors on one end side of the wire bundles 36 to 39 are connected to the corresponding connection blocks 31 to 34. A connector or the like is attached to the other end side of the wire bundles 36 to 39.

  Next, while introducing the intermediate portion of the plurality of wire bundles 36 to 39 into the inner back side of the wire guide portion 53 in the path regulation guide member 25, as shown in FIGS. 4 (a) and 4 (b), All of the plurality of connection blocks 31 to 34 are held by the plurality of block holding portions 51 a to 51 d of the path regulation guide member 25 so as to be prevented from being detached.

  In addition, the hook-shaped wire bundle fixing portions 52a to 52d of the path regulation guide member 25 at predetermined positions on the respective wiring routes of the plurality of wire bundles 36 to 39 between the block holding portions 51a to 51d and the opening 24a. The wire bundles 36 to 39 are inserted between the bottom wall portion 56e and the wire bundles 36 to 39 are restrained and fixed to the path regulation guide member 25 at predetermined positions on the wiring paths.

  At this time, the wire bundles 36 to 39 from the plurality of connection blocks 31 to 34 to the assembly hole 53c of the wire guide portion 53 corresponding to the opening 24a take into consideration the bending shape and the necessary extra length for assembling them. Is held along the optimum wiring path. That is, the path regulation guide member 25 regulates and fixes the wiring paths of the plurality of wire bundles 36 to 39 from the plurality of connection blocks 31 to 34 to the opening 24a to the optimum generally shortest path. It is supposed to function as.

  In this way, after the plurality of connection blocks 31 to 34 are held in the path regulation guide member 25 so as to be prevented from being detached, and after the wiring paths of the plurality of wire bundles 36 to 39 are fixed to the optimum paths, While holding these together, the path regulation guide member 25 is moved closer to the case body 21 side so as to be fitted to the lower end portion of the case body 21.

  At this time, the plurality of connection blocks 31 to 34 are guided to the corresponding loading parts of the case body 21, and the plurality of fitting protrusions 25 a of the path regulation guide member 25 are formed in the plurality of fitting recesses 21 a of the case body 21. The plurality of connection blocks 31 to 34 are loaded at predetermined loading positions of the case body 21 as they are fitted.

  Next, the second cover member 23 is attached to the lower end side of the case main body 21 so that the path regulation guide member 25 is prevented from being detached from the case main body 21, and the electric wire group 13 in the case main body 21 and a plurality of mountings are mounted. The connection surface side with the component 11 is closed.

  Next, the operation will be described.

  As described above, in the electrical junction box 10 of the present embodiment, the plurality of connection blocks 31 to 34 are respectively held by the corresponding block holding portions 51 a to 51 d of the path regulation guide member 25 and are connected to the connection blocks 31 to 34. The wire bundles 36 to 39 to be connected are on the respective wiring routes between the block holding portions 51a to 51d and the opening 24a of the cylindrical portion 24 by the corresponding wire bundle fixing portions 52a to 52d of the route regulation guide member 25. Fixed in place.

  In this state, since the route of the wire bundles 36 to 39 along the route restriction guide member 25 is fixed by the plurality of wire bundle fixing portions 52a to 52d and can be mechanically grasped, the length of the wire bundles 36 to 39 is increased. There is no need to tune in kind.

  Further, the wire bundles 36 to 39 can be easily introduced into the inner side of the wire guide portion 53 in the path regulation guide member 25 and can be easily assembled in the opening 24a. Therefore, the electric wire group 13 in which the electric wire connection position to the plurality of connection blocks 31 to 34 is away from the opening 24a is not complicated in the case 12, and the complicated electric wire in the electric wire group 13 is the other electric wire. The connection work is not hindered.

  Furthermore, at the one end portion 13a of the wire group 13, the extra lengths of the plurality of wire bundles 36 to 39 are the minimum necessary, and the plurality of wire bundles 36 to 39 are neatly accommodated in the second cover member 23 that is a lower cover. It will be possible. Moreover, the setting of the extra length for the routing of the wire bundles 36 to 39, the connector connection work, and the like can be performed easily and accurately.

  In addition, in the assembly process of the electrical connection box 10, all the terminals of the wires of the wire bundles 36 to 39 are inserted into the connection blocks 31 to 34, and one end side of the wire bundles 36 to 39 with respect to the connection blocks 31 to 34 is inserted. After the connection work is completed, the plurality of connection blocks 31 to 34 can be simultaneously loaded into the case main body 21 while these are integrally held by the path regulation guide member 25.

  Therefore, the loading work of the plurality of connection blocks 31 to 34 can be performed easily and accurately, and the work of inserting the terminals of the wires of the wire bundles 36 to 39 later is eliminated. Will improve.

  Further, in the present embodiment, one of the guide grooves 53 a and 53 b of the wire guide portion 53, for example, the guide groove 53 a is formed by cutting out the outer peripheral wall surface of the path regulation guide member 25. Accordingly, a plurality of wire bundles 36 to 39 that are connected to the connection blocks 31 to 34 on one end side in advance and are attached with connectors or the like on the other end side are arranged on the inner back side of the wire guide portion 53 in the path regulation guide member 25. It can be easily introduced and placed in the opening 24a.

  Further, in the present embodiment, the plurality of block holding portions 51a to 51d of the route regulation guide member 25 hold the plurality of connection blocks 31 to 34 so as not to be detached, and the plurality of wire bundle fixing portions 52a to 52d are formed by the bottom wall portion 56e. It is connected with. Therefore, the wiring paths of the plurality of wire bundles 36 to 39 and the fixing positions thereof with respect to the plurality of connection blocks 31 to 34 can be accurately and stably secured.

  Furthermore, in this embodiment, since the some connection blocks 31-34 and the electric wire group 13 comprise the power distribution unit mounted in a vehicle, the vehicle-mounted electrical component supplied / distributed via the electrical connection box 10 is more. Although the number may increase or the internal volume of the electrical junction box 10 may be more limited, good workability can be exhibited.

  Thus, according to this embodiment, the path of the wire group 13 in the case 12 can be secured stably, and the electrical connection box 10 excellent in workability of assembly work and electrical connection work can be provided. .

  In each of the above-described embodiments, the plurality of block holding portions 51a to 51d or the plurality of wire bundle fixing portions 52a to 52d are described as similar to each other, but may be different from each other. Not too long. In addition, the plurality of connection blocks 31 to 34 are held by the case body 21 in a state where the electrical connection box 10 is mounted on the vehicle, but the stopper shown in FIG. A stopper for supporting the plurality of connection blocks 31 to 34 can be provided from below as in the shape of a rib 58 so as to be supported by the path regulation guide member 25 and the second cover member 23 (lower cover). Conceivable.

  As described above, the present invention can provide an electric connection box that can stably secure the route of the electric wire group in the case, and has excellent workability in assembly work and electric connection work. Useful for all electrical junction boxes suitable for the unit.

DESCRIPTION OF SYMBOLS 10 Electrical connection box 11 Mounting component 12 Case 13 Electric wire group 13a One end part 13b Remaining part 21 Case main body 21a Several fitting recessed part 22 1st cover member 23 2nd cover member (cover member)
24 Tubular portion 24a Opening portion 25 Path regulation guide member 25a Multiple fitting protrusions 31, 32, 33, 34 Connection blocks 31a, 32a, 33a, 34a Wire connection portions 36, 37, 38, 39 Wire bundles 51a, 51b , 51c, 51d Block holding portions 52a, 52b, 52c, 52d Wire bundle fixing portion 53 Wire guide portions 53a, 53b Multiple guide grooves 53c Collecting holes 53d, 53e Multiple divided tubular portions 53f Tubular portion 53g Wire bundle insertion port 53h Widening portions 55a, 55b, 55c, 55d, 55e Multiple opposing wall portions 55r Rib-like wall portions 56 Lock mechanisms 56a, 56b, 56c, 56d Multiple sets of claw-like engaging convex portions 56e Bottom wall portions 57a, 57b, 57c, 57d Block guide part

Claims (4)

A plurality of connection blocks each having a wire connection portion on the lower surface side, a case main body for storing the plurality of connection blocks, and supported by the case main body so as to cover the lower surface side of the plurality of connection blocks, A cover member that forms an opening between the case main body, a first end connected to the wire connecting portion of the plurality of connection blocks, and a remaining portion that protrudes outward from the case main body and the cover member through the opening; An electrical junction box comprising an electric wire group,
The one end of the wire group is divided into a plurality of wire bundles connected to the plurality of connection blocks,
Between the case body and the cover member, a path regulation guide member that regulates a wiring path of the plurality of electric wire bundles is disposed,
The path regulation guide member is
A plurality of block holding units for holding the plurality of connection blocks;
A plurality of wire bundle fixing portions for fixing the plurality of wire bundles at predetermined positions on a wiring path between the plurality of block holding portions and the opening;
It has a concave shape capable of introducing the plurality of electric wire bundles in the respective bundle radial directions, and has an electric wire guide part capable of collecting the plural electric wire bundles on the inner back side. Electrical junction box.   The wire guide portion is connected to each other on the inner back side, and has a plurality of guide grooves extending in different directions from the inner back side, and any of the plurality of guide grooves is The electrical junction box according to claim 1, wherein an outer peripheral wall surface of the path regulation guide member is cut out. The plurality of block holding portions each have a lock mechanism that holds and holds the plurality of connection blocks while facing each other across the lower surface side ends of the plurality of connection blocks,
The plurality of block holding portions and the plurality of wire bundle fixing portions are connected to each other by a bottom wall portion of the path regulation guide member facing the end portion on the lower surface side. 2. The electrical junction box according to 2.   The electrical connection box according to any one of claims 1 to 3, wherein the plurality of connection blocks and the electric wire group constitute a power distribution unit mounted on a vehicle.

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