JP2020043683A - Electric connection box and method of manufacturing electric connection box unit - Google Patents

Abstract

To provide an electric connection box that is easy to assemble and has improved versatility.SOLUTION: An electric connection box 10 comprises: a plate-like mounting part 21; a plurality of insertion holes 22 which are provided so as to penetrate the mounting part 21 in a thickness direction and into which a core wire exposed from an end of an electric wire 50 can be inserted; a band-like first bus bar 41 and a band-like second bus bar 42 which are mounted onto the mounting part 21; a plurality of press-in holes 43 which are provided in the first bus bar 41 and the second bus bar 42 in correspondence to each of the plurality of insertion holes 22, and into which the core wire can be press-fit; and a partition wall 25 which is provided between the first bus bar 41 and the second bus bar 42, with a height dimension from the mounting part 21 of the partition wall 25 being larger than a thickness dimension of the first and second bus bars 41 and 42, and being larger than a length dimension of the core wire passing through each press-in hole 43.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an electrical junction box.

  Conventionally, for example, when connecting a branch line to a main line of a distribution line, a branch sleeve may be used (for example, see Patent Documents 1 and 2). This branch sleeve has a main line compression section into which the main line of the distribution line is inserted, and a branch line compression section formed integrally with the main line compression section and into which a branch line connected to the main line is inserted. Then, the main line compression portion is attached to the exposed core wire where the coating of the main line has been peeled off and caulked, and the tip end of the exposed core wire where the coating of the branch line has been peeled is inserted into the branch line compression portion and caulked. (For example, refer to Patent Document 1).

JP 2001-326000 A JP-A-2004-096983

  By the way, when connecting the electric wires as described above, an electric connection box using a plurality of bus bars may be used. In this case, since a plurality of bus bars are densely arranged, in order to prevent an unintended short circuit, it is conceivable to insulate the bus bars with a resin or the like as one countermeasure. However, this countermeasure method requires a filling resin material and a filling device, and also requires a waiting time until the filled resin is cured, so that it is difficult to improve the productivity of the electric junction box. Also, once the resin is filled, it is difficult to rearrange circuits (that is, bus bars), and it is difficult to improve the versatility of the electric junction box.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to easily assemble an electric connection box and improve the versatility of the electric connection box, and to provide the electric connection box with a plurality of electric connection boxes. A method of manufacturing an electric junction box unit to which electric wires are connected.

In order to achieve the above object, a method for manufacturing an electric junction box and an electric junction box unit according to the present invention is characterized by the following [1] to [4].
[1]
A plate-like mounting portion,
A plurality of insertion holes that are provided so as to penetrate the mounting portion in the thickness direction and can insert a core wire exposed from the end of the electric wire,
A first bus bar and a second bus bar in a belt shape placed on the placement unit;
A plurality of press-fit holes provided in the first bus bar and the second bus bar corresponding to each of the plurality of insertion holes, and capable of press-fitting the core wire;
A partition provided between the first bus bar and the second bus bar, wherein a height of the partition from a mounting portion is larger than thicknesses of the first bus bar and the second bus bar. A partition wall larger than a length dimension of the core wire passing through the press-fitting hole,
Be an electrical junction box.
[2]
In the electric junction box according to the above [1],
At least one of the plurality of press-fit holes,
A large-diameter portion larger than the diameter of the core wire, and a small-diameter portion smaller than the diameter of the core wire,
Be an electrical junction box.
[3]
In the electric junction box according to the above [1] or [2],
At least one of the plurality of press-fit holes,
A large-diameter portion larger than the diameter of the core wire, and a spring portion protruding radially inward from a hole edge surface of the large-diameter portion,
Be an electrical junction box.
[4]
A step of arranging a plurality of electric wires whose core wires are exposed from the end according to a predetermined arrangement rule,
Each of the plurality of core wires is inserted into each of the plurality of insertion holes of the electric connection box according to any one of the above [1] to [3] and pressed into each of the plurality of press-fit holes. Connecting the plurality of core wires to the first bus bar and the second bus bar.
A method for manufacturing an electrical junction box unit.

  According to the electrical junction box having the configuration of the above [1], the first and second bus bars having a press-fitting hole into which the core exposed from the electric wire can be press-fitted are mounted on the mounting portion. A partition wall is provided between the first bus bar and the second bus bar, and a height dimension of the partition wall is larger than a thickness dimension of the first bus bar and the second bus bar. The height of the partition wall is larger than the length of the core wire passing through the press-fitting hole. Therefore, the first bus bar and the second bus bar can be insulated without using the resin filling as described above. Also, since the press-fit holes of the first bus bar and the second bus bar are arranged corresponding to the insertion holes of the mounting portion, the core wire is press-fitted into the press-fit hole simply by inserting the core wire of the electric wire into the insertion hole, and the second bus bar is easily inserted. The first bus bar and the second bus bar can be connected to the electric wires. Further, even after the bus bar is once assembled to the mounting portion, the bus bar can be easily replaced. Therefore, the electrical junction box of this configuration can easily assemble the electrical junction box and improve versatility.

  According to the electric connection box having the above configuration [2], at least one press-fitting hole has a large diameter portion larger than the diameter of the core wire and a small diameter portion smaller than the diameter of the core wire. For this reason, it is easier to press-fit the core wire into the press-fit hole because of the large-diameter portion than when the press-fit hole is simply a hole smaller than the diameter of the core wire. And the core wire can be reliably connected. That is, the core wire and the bus bar can be easily and reliably connected.

  According to the electric connection box having the configuration of [3], the press-fitting hole has the large-diameter portion larger than the diameter of the core wire, and the spring portion protruding inward from the hole edge surface of the large-diameter portion. For this reason, the spring portion is pressed against the core wire inserted into the press-fitting hole. Therefore, the core wire and the bus bar can be easily and reliably connected.

  According to the method for manufacturing an electrical junction box unit having the configuration of the above [4], for example, the electrical connection box is attached to the core wires of a plurality of electric wires arranged according to a predetermined arrangement rule so as to cover the electrical junction box. The connection between the first busbar and the second busbar in the box and the plurality of electric wires can be easily and collectively performed. Therefore, the productivity of the electric junction box unit can be improved.

  ADVANTAGE OF THE INVENTION According to this invention, the electrical junction box which can assemble an electrical junction box easily and can improve versatility can be provided.

  The present invention has been briefly described above. Further, details of the present invention will be further clarified by reading through the modes for carrying out the invention described below (hereinafter, referred to as “embodiments”) with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view of a collective electrical junction box that accommodates a plurality of electrical junction boxes according to the present embodiment. 2A is a plan view as viewed from the II direction in FIG. 1, FIG. 2B is a plan view showing the arrangement of bus bars in each electric connection box, and FIG. 2C is a partition wall. FIG. FIG. 3 is a perspective view showing the connection between the electric junction box and the collective bus bar. FIG. 4 is a perspective view seen from below showing a state in which electric wires are connected to the electric connection box. 5A is a perspective view of the bus bar fixed to the mounting surface, and FIG. 5B is an enlarged cross-sectional view taken along a line BB in FIG. 5A, and FIG. FIG. 6 is a cross-sectional view taken along a line CC in FIG. FIG. 6 is a perspective view showing a state where the core wire of the electric wire is press-fitted into the press-fitting hole of the bus bar. FIG. 7 is a plan view showing an arrangement of the bus bars in each electric connection box housed in the collective electric connection box, and a plan view showing a connection state between the bus bars and the electric wires. FIG. 8A is a front view showing a length of a core wire of an electric wire connected to the electric connection box according to the present embodiment, and FIG. 8B is a view of an electric wire used in a conventional electric connection box. It is a front view showing the state of the end. FIG. 9 is a perspective view showing a modification of the fixing method of fixing the bus bar to the mounting surface. FIG. 10 is a perspective view showing a modification of the method of attaching the electric connection box to the collective bus bar. FIG. 11A is a perspective view showing a first modification of a method of connecting a bus bar and a core of an electric wire, and FIG. 11B is a cross-sectional view showing a state where the cores are connected. FIG. 12A is a perspective view illustrating a second modification of the method of connecting the bus bar and the core of the electric wire, and FIG. 12B is a cross-sectional view illustrating a state where the core is connected. FIG. 13A is a perspective view showing a third modification of the method of connecting the bus bar and the core of the electric wire, and FIG. 13B is a perspective view of the third modification of the connection method viewed from another angle. FIG. 13C is a cross-sectional view of a state where core wires are connected.

<Embodiment>
Hereinafter, a method for manufacturing the electric junction box 10 and the electric junction box unit according to the embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a collective electrical junction box 1 that houses a plurality of electrical junction boxes 10 according to the present embodiment. In the following description, as shown in FIG. 1, the lid member 3 side is “up”, the side opposite to the lid member 3 is “down”, and the near side in FIG. "Rear", the right side facing the front side is called "right", and the left side is called "left".

  As shown in FIG. 1, the collective electrical junction box 1 includes a collective electrical junction box main body 2 that accommodates a plurality of electrical junction boxes 10, and a lid member 3 that covers an upper surface of the collective electrical junction box main body 2. The collective electrical junction box main body 2 is a rectangular box, has a bottom plate (not shown), and is open at the top. The bottom plate is provided with a through hole or a notch for inserting an electric wire 50 described later. Further, a rectangular frame member 2a is provided in the main body opening along the inner surface.

  A collective bus bar 4 for electrically connecting a plurality of electric connection boxes 10 housed in the collective electric connection box 1 is attached to an upper surface of the frame member 2a along the longitudinal direction (left-right direction). The collective bus bar 4 is a narrow plate member formed of a conductive metal plate such as copper, and is provided with a plurality of bus bar mounting screw holes 4a at predetermined intervals along the longitudinal direction.

  FIG. 2A is a plan view seen from the II direction in FIG. 1, FIG. 2B is a plan view showing the arrangement of the bus bars 40 in each electric connection box 10, and FIG. FIG. FIG. 3 is a perspective view showing the connection between the electric connection box 10 and the collective bus bar 4. FIG. 4 is a perspective view of a state where the electric wire 50 is connected to the electric connection box 10 as viewed from below. The electric wire 50 is covered with an outer skin 52 on the outside, and a coating 53 covers the core wire 51 inside the outer skin 52 (see FIG. 6).

  As shown in FIG. 2A, the collective electrical connection box 1 includes, for example, a first electrical connection box 11, a second electrical connection box 12, a third electrical connection box 13, and a fourth electrical connection box 14. Electrical connection box 10 is accommodated. In the following description, the first to fourth electric connection boxes 11 to 14 will be collectively referred to as the electric connection box 10 unless otherwise specified.

  As shown in FIGS. 3 and 4, the electric connection box 10 includes an electric connection box main body 20 having a rectangular box shape with an upper opening, and a lid 30 that covers the opening of the electric connection box main body 20. The bottom plate (mounting portion) 21 of the electric connection box main body 20 is provided with an insertion hole 22 through which a core wire 51 exposed from an end of the electric wire 50 can be inserted. A plurality of insertion holes 22 are provided at predetermined intervals on the front, rear, left, and right sides, and three or two sets are provided with three being one set. When connecting the electric wire 50, the core wire 51 is inserted using an appropriate insertion hole 22 as necessary. The electric connection box unit is formed by connecting the plurality of electric wires 50 to the electric connection box 10.

  A rectangular recess 24 is provided at the upper end of the upright wall 23 on the four sides of the electrical junction box body 20. On the other hand, on the outer peripheral edge of the lid 30, a convex portion 31 fitted to the concave portion 24 is provided at a position corresponding to the concave portion 24. The height H of the convex portion 31 is smaller than the depth D of the concave portion 24, and when the lid 30 is attached to the electric junction box main body 20, the height H is between the lower end of the concave portion 24 and the lower end of the lid 30. Then, a gap S is formed.

  As shown in FIG. 2 (B), a band-shaped first bus bar 41 and a second bus bar 42 are mounted on the mounting surface 211 which is the upper surface of the bottom plate 21 of the electric connection box main body 20 so as to be adjacent to each other. I have. The first bus bar 41, the second bus bar 42, and a third bus bar 48 to be described later are collectively referred to as a "bus bar 40". A partition wall 25 rising from the mounting surface 211 is provided between the first bus bar 41 and the second bus bar 42, that is, between the adjacent bus bars 40. The partition wall 25 is provided not only between the adjacent bus bars 40 but also on the mounting surface 211 in advance corresponding to the width of the bus bars 40. The height (height) H2 of the partition 25 is larger than the thickness T of the bus bar 40 (see FIG. 5B).

  As shown in FIG. 2 (C), the partition 25 is composed of a plurality of continuous partition pieces 251. V-shaped notches 252 are provided on both sides in the thickness direction between the adjacent partition pieces 251, so that the thickness of the partition 25 is small. Thereby, the partition piece 251 can be cut off as needed. In the case of the first electric connection box 11, the third electric connection box 13, and the fourth electric connection box 14 in which three rows of the insertion holes 22 are provided on the mounting surface 211 (see FIG. 4), the partition piece 251 is used. Are provided (see FIG. 2C). On the other hand, in the case of the second electric connection box 12, since the insertion holes 22 are provided in two rows (not shown), three partition pieces 251 are provided.

  As shown in FIGS. 5A and 5C, the mounting surface 211, which is the upper surface of the bottom plate 21, is provided between the adjacent partition walls 25 and the insertion holes adjacent to each other along the longitudinal direction of the partition walls 25. A projection 26 is provided between the projections 22. The projection 26 is provided with a pair of projection pieces 261, 261 projecting toward the tip (upper end) and having a locking portion 262, facing each other with a gap S <b> 1. Each protruding piece 261 is elastically deformable toward the gap S1.

  As shown in FIG. 5A, the bus bar 40 is provided with press-fit holes 43 into which the core wires 51 of the electric wires 50 are press-fitted, at positions corresponding to the insertion holes 22 on the mounting surface 211 at the same intervals. The press-fit hole 43 has a large-diameter portion 431 having an inner diameter larger than the diameter of the core wire 51 and a small-diameter portion 432 having an inner diameter smaller than the diameter of the core wire 51 (see FIG. 6). Thus, when the core wire 51 is pressed into the press-fit hole 43, the core wire 51 is locked by the small diameter portion 432. It is preferable that three or more large-diameter portions 431 and small-diameter portions 432 are provided along the inner peripheral surface of the press-fit hole 43 in order for the small-diameter portion 432 to securely lock the core wire 51. Here, four are provided respectively.

  An opening 44 for fixing the bus bar 40 is provided between the press-fit holes 43 in the bus bar 40. The shape of the opening 44 is not particularly limited, but may be a circle or a rectangle corresponding to the shape of the projection 26 provided on the mounting surface 211. Therefore, by positioning the opening 44 on the projection 26 and pressing the bus bar 40, the projection 26 passes through the opening 44 and is locked by the locking portion 262, so that the bus bar 40 is fixed at a predetermined position. Thereby, the press-fit hole 43 of the bus bar 40 is positioned above the insertion hole 22 between the partition walls 25.

  FIG. 3 is a perspective view showing the connection between the electric connection box 10 and the collective bus bar 4. As shown in the figure, the connection between each electric connection box 10 and the collective bus bar 4 is performed by passing a screw 46 into a through hole 451 of a connection portion 45 of the bus bar 40 protruding from each electric connection box 10, and attaching the collective bus bar 4 to the bus bar. Screw it into the screw hole 4a.

  Next, an example of the electric connection box 10 will be described. FIG. 7 is a plan view showing an arrangement of the bus bars 40 of each electric connection box 10 in the collective electric connection box 1 and a plan view showing a connection state between the bus bars 40 and the electric wires 50. The first electric connection box 11 is connected to a power supply and an outlet, and supplies electric power to the collective bus bar 4 via the bus bar 40 by connecting an electric wire 50 a which is a power supply line to the bus bar 40. The electric wire 50b is a three-wire electric wire, and is connected to a grounded outlet. Furthermore, the electric wire 50c is two wires, and is connected to an outlet without ground. This supplies power to the outlet. In the drawing, B indicates a black line in which the color of the outer skin 52 is black, 100 V, and W indicates a white line, indicating 0 V. G indicates a green line indicating a ground, and R indicates a three red line (see FIG. 8).

  The second electric connection box 12 is connected to a one-way switch that turns on / off only one of the power supply lines and a lighting device using the two electric wires 50. At this time, since the third bus bar 48 is provided between the first bus bar 41 and the second bus bar 42, the white wire of the wire 50d and the wire of the wire 50e can be connected via the third bus bar 48.

  The third electric connection box 13 is connected to a double-off switch for turning on and off both of the two power supply lines and a lighting fixture. The electric wire 50f and the electric wire 50g are each connected to a switch using two electric wires. Also, the electric wire 50h is a two-wire cable, and is connected to the lighting equipment.

  In addition, the fourth electric connection box 14 is connected to a three-way switch for turning on / off the lighting device and a lighting device by two switches such as up and down stairs. The electric wire 50i and the electric wire 50j are three wires, each of which is connected to a switch. In addition, the electric wire 50k is two wires, and is connected to the lighting equipment.

  Next, an operation of assembling the electric junction box 10 and the collective electric junction box 1 having the above-described configurations will be described.

  First, a bus bar 40 is arranged for each electrical connection box 10 in accordance with the processing content. At this time, the unnecessary partition 25 is removed so as not to obstruct the bus bar 40 projecting out of the electric connection box main body 20, for example. Then, the protrusion 26 of the mounting surface 211 is pushed into the opening 44 of the bus bar 40 to attach the bus bar 40 to the mounting surface. The outer skin 52 and the coating 53 at the end of the electric wire 50 to be connected are removed to expose only the core wire 51, and the core wire 51 is inserted through the insertion hole 22 provided in the bottom plate 21 of the electric connection box main body 20 (see FIG. 4). And press-fitted into the press-fit hole 43 of the bus bar 40 (see FIG. 6). Next, the cover 30 is attached, and the connecting portion 45 protruding from the electric connection box 10 is attached to the busbar attaching screw hole 4a of the collective busbar 4 with the screw 46 (see FIG. 3). The step of attaching the lid 30 and the step of attaching the electric connection box 10 to the collective bus bar 4 can be performed before or after.

  As described above, according to the electric junction box 10 according to the present embodiment, the first bus bar 41 and the second bus bar 42 having a band shape having the press-fitting holes 43 into which the core wires 51 exposed from the electric wires 50 can be press-fitted are mutually connected. They are placed side by side. The partition 25 is raised between the first bus bar 41 and the second bus bar 42, and the height H 2 of the partition 25 is larger than the thickness T of the first bus bar 41 and the second bus bar 42. large. Therefore, insulation between the first bus bar 41 and the second bus bar 42 is ensured without using a resin mold as in the related art, and the circuit can be easily rearranged, so that the assembly process can be simplified and high versatility can be achieved. Is obtained.

  Further, according to the electric junction box 10 according to the present embodiment, the press-fit hole 43 is provided with the large-diameter portion 431 larger than the diameter of the core wire 51 and the small-diameter portion 432 smaller than the diameter of the core wire 51. Therefore, the connection can be easily made only by pressing the core wire 51 into the press-fitting hole 43.

  Further, according to the electric junction box 10 according to the present embodiment, the third bus bar 48 is adjacent to the second bus bar 42 via the partition wall 25. The first core wire 511 and the second core wire 512 of the electric wire 50 can be press-fitted into the press-fit holes 43 of two adjacent ones of the first bus bar 41, the second bus bar 42, and the third bus bar 48, respectively. For this reason, the electric wires connected to the first bus bar 41 and the second bus bar 42 and located at remote positions can be connected via the third bus bar 48, so that the outer sheath 52 of the electric wire can be connected as in the case where the conventional bus bar is not used. Since it is not necessary to remove the wire for a long time and wire with the coating 53, it is possible to avoid the electric wire from being twisted.

<Other aspects>
The present invention is not limited to the above embodiments, and various modifications can be adopted within the scope of the present invention. For example, the present invention is not limited to the above-described embodiments, and can be appropriately modified, improved, and the like. In addition, the material, shape, size, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, in the above-described embodiment, the method of fixing the bus bar 40 using the protrusion 26 provided on the mounting surface 211 has been described (see FIGS. 5A and 5C). Alternatively, the bus bar 40 can be fixed to the mounting surface 211 using a screw 47 as shown in FIG. In this case, a screw hole is provided on the mounting surface 211.

  Further, in the above embodiment, when connecting the bus bar 40 of the electric connection box 10 to the collective bus bar 4, the collective bus bar 4 is provided with the bus bar mounting screw hole 4 a and the bus bar 40 is connected using the screw 46. This has been described (see FIG. 3). In addition, as shown in FIG. 10, it is also possible to provide a bus bar mounting projection 4 b on the collective bus bar 4 and fit the through hole 451 provided in the connection portion 45 of the bus bar 40 for connection.

  In the above embodiment, the case where the core 51 is connected to the bus bar 40 by press-fitting the core 51 into the press-fit hole 43 having the small diameter portion 432 having an inner diameter smaller than the outer diameter of the core 51 has been described. In addition, as shown in FIGS. 11A and 11B, the bus bar 40 is provided with a press-fit hole 43 that is larger than the diameter of the core wire 51. A spring portion 433 protruding radially inward of the hole 43 is provided. Thus, when the core wire 51 is inserted into the press-fit hole 43 from the bottom upward, the spring portion 433 presses the core wire 51, so that the connection can be easily performed.

  FIG. 12A is a perspective view illustrating a second modification of the method of connecting the bus bar 40 and the core wire 51 of the electric wire 50, and FIG. 12B is a cross-sectional view illustrating a state where the core wire 51 is connected. is there. As shown in the figure, the bus bar 40 is provided with a press-fit hole 43 that is larger than the diameter of the core wire 51, and a spring portion 434 projecting radially inward of the press-fit hole 43 above the press-fit hole 43. Is provided. When the press-fit hole 43 is provided in the bus bar 40, the spring portion 434 forms a support portion 435 by making a pair of cuts in the press-fit hole 43, and bends the support portion 435 upward. Accordingly, when the core wire 51 is inserted into the press-fitting hole 43 from the bottom upward, the spring portion 434 and the support portion 435 press the core wire 51, so that the connection can be easily performed.

  FIG. 13A is a perspective view of a third modification of the method of connecting the bus bar 40 and the core wire 51 of the electric wire 50 as viewed from below, and FIG. 13B is a perspective view as viewed from above. FIG. 13C is a cross-sectional view of a state in which core wires are connected. As shown in the drawing, spring portions 436 and 436 are provided, which are bent upward from both ends in the width direction of the bus bar 40 and whose upper ends are close to each other. Thus, when the core wire 51 is inserted into the press-fit hole 43 from below, the pair of spring portions 436 and 436 sandwich the core wire 51, so that the connection can be easily performed.

Here, the features of the above-described embodiments of the method for manufacturing the electric junction box (10) and the electric junction box unit according to the present invention will be briefly summarized and listed below in [1] to [4].
[1]
A plate-shaped mounting portion (21);
A plurality of insertion holes (22) provided so as to penetrate the mounting portion (21) in the thickness direction and capable of inserting a core wire exposed from an end of the electric wire (50);
A first bus bar (41) and a second bus bar (42) in the form of a strip to be placed on the placement section (21);
A plurality of press-in holes (43) provided in the first bus bar (41) and the second bus bar (42) corresponding to each of the plurality of through-holes (22) and capable of press-fitting the core wire;
A partition wall (25) provided between the first bus bar (41) and the second bus bar (42), wherein a height dimension of the partition wall (25) from the mounting portion (21) is the same as the above. A partition wall (25) larger than the thickness of the first bus bar (41) and the second bus bar (42) and larger than the length of the core wire passing through the press-fit hole (43).
Electrical junction box (10).
[2]
In the electric junction box according to the above [1],
At least one of the plurality of press-fit holes (43) is
A large-diameter portion (431) larger than the diameter of the core wire; and a small-diameter portion (432) smaller than the diameter of the core wire.
Electrical junction box.
[3]
In the electric junction box according to the above [1] or [2],
At least one of the plurality of press-fit holes (43) is
A large-diameter portion (431) larger than the diameter of the core wire; and a spring portion (433) projecting radially inward from a hole edge surface of the large-diameter portion (431).
Electrical junction box.
[4]
Arranging a plurality of electric wires (50) whose core wires are exposed from the ends in accordance with a predetermined arrangement rule;
Each of the plurality of core wires is inserted into each of the plurality of insertion holes (22) of the electric connection box according to any one of [1] to [3], and the plurality of press-fit holes (43). ) To connect the plurality of core wires to the first bus bar (41) and the second bus bar (42) by press-fitting each of the core wires.
Manufacturing method of electrical junction box unit.

10 Electrical connection box 21 Bottom plate (placement part)
211 Mounting surface 22 Insertion hole 25 Partition wall 41 First bus bar 42 Second bus bar 43 Press-in hole 431 Large diameter portion 432 Small diameter portion 433 Spring portion 48 Third bus bar 50 Electric wire 51 Core wire 511 First core wire 512 Second core wire H2 Height dimension T Thickness dimension

Claims (4)

A plate-like mounting portion,
A plurality of insertion holes that are provided so as to penetrate the mounting portion in the thickness direction and can insert a core wire exposed from the end of the electric wire,
A first bus bar and a second bus bar in a belt shape placed on the placement unit;
A plurality of press-fit holes provided in the first bus bar and the second bus bar corresponding to each of the plurality of insertion holes, and capable of press-fitting the core wire;
A partition provided between the first bus bar and the second bus bar, wherein a height of the partition from a mounting portion is larger than thicknesses of the first bus bar and the second bus bar. A partition wall larger than a length dimension of the core wire passing through the press-fitting hole,
Electrical junction box. The electrical junction box according to claim 1,
At least one of the plurality of press-fit holes,
A large-diameter portion larger than the diameter of the core wire, and a small-diameter portion smaller than the diameter of the core wire,
Electrical junction box. In the electrical junction box according to claim 1 or claim 2,
At least one of the plurality of press-fit holes,
A large-diameter portion larger than the diameter of the core wire, and a spring portion protruding radially inward from a hole edge surface of the large-diameter portion,
Electrical junction box. A step of arranging a plurality of electric wires whose core wires are exposed from the end according to a predetermined arrangement rule,
By inserting each of the plurality of core wires into each of the plurality of insertion holes of the electric connection box according to any one of claims 1 to 3, and press-fitting each of the plurality of press-fit holes. Connecting the plurality of core wires to the first bus bar and the second bus bar.
Manufacturing method of electrical junction box unit.

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