Electrical junction box

Abstract

To provide an electric connection box capable of improving the efficiency of wiring work for storing electric wires with terminals electrically connected to relief terminals inside the electric connection box while making a relief terminal mounting section compact.SOLUTION: An electrical connection box includes: a relief terminal mounting section 30 to which a relief terminal 54 can be attached; a block 20 on which the relief terminal mounting section 30 is provided; a circuit board 50 on the power supply side accommodated in the relief terminal mounting section 30; an electric wire 80 with a terminal in which a connection terminal 82 has a terminal connection section 82a having an L-shaped cross-section; and a frame body to which the block 20 is attached. The relief terminal 54 is provided on one part of the protrusion section on the circuit board 50 on the power supply side, the base portion of the relief terminal 54 is provided with a terminal insertion hole 56 through which the terminal connection section 82a is inserted, and the terminal connection section 82a, passing through the terminal insertion hole 56, is bolted to the circuit board 50 on the power supply side.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to an electrical connection box.

Background Art

[0002] Conventionally, there have been proposed electrical connection boxes such as relay boxes and fuse boxes that are mounted on vehicles and have an accommodation space for accommodating electronic components such as relays and fuses (see Patent Document 1). In the electrical connection box, a conductive member such as a bus bar that is electrically connected to an electronic component housed in a housing (case body) is assembled. And a terminal to which an electric wire for power supply or the like is connected is electrically connected to the electronic component by being bolted to the conductive member (see Patent Document 2).

[0003] Also, there is known an electrical connection box provided with a rescue terminal that can connect a booster cable for power supply when the battery is fully charged (see Patent Document 3). The rescue terminal is attached to a rescue terminal attachment portion provided in a cassette (block) of the electrical connection box, and includes a first connection portion where a clip of the booster cable is sandwiched, and a second connection portion where a wiring member such as a terminal wire connected to the power supply side is electrically connected. And the second connection portion of the rescue terminal is electrically connected to the power supply by a terminal wire, for example, by tightening a terminal (LA terminal) of the terminal wire with a bolt and nut to a wiring member (bus bar) exposed on the side surface of the block provided with the rescue terminal attachment portion.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

[0005] Incidentally, in conventional electrical junction boxes equipped with rescue terminals, the terminals of the wires with terminals are fastened with bolts and nuts to a busbar exposed on the side of the block, and a rescue terminal is integrally provided at the upper end of this busbar, thus creating an electrical junction box with a compact rescue terminal mounting section.

[0006] However, when a terminal-equipped wire is fastened to a busbar with a rescue terminal at its upper end, the position of the wire connection point of the terminal inside the electrical junction box becomes low, causing the wire of the terminal-equipped wire to interfere with the lower cover, etc., making it difficult to fit inside the electrical junction box. In other words, the fastening position of the terminal to the busbar must ensure that the rescue terminal is long enough to hold the booster cable clip at the upper end of the busbar. Consequently, the position of the wire connection point of the terminal inside the electrical junction box also becomes low.

[0007] The present invention has been made in view of the above circumstances, and its purpose is to provide an electrical junction box that can make the rescue terminal mounting section compact while improving the workability of wiring work in which the wires of terminal-equipped electric wires electrically connected to the rescue terminals are housed inside the electrical junction box. [Means for solving the problem]

[0008] The above-mentioned objective according to the present invention is achieved by the following configuration. The rescue terminal is clamped onto the booster cable clip, A rescue terminal mounting section to which the rescue terminal can be attached, The block on which the rescue terminal mounting portion is provided, The power supply side circuit board housed in the rescue terminal mounting section, A wire with a terminal having an L-shaped cross-section terminal connection part, An electrical junction box comprising a frame body to which the aforementioned block is assembled, The rescue terminal is provided on a portion of the protrusion on the power supply side circuit board. The base of the rescue terminal is provided with a terminal insertion hole through which the terminal connection portion is inserted. The terminal connection portion, which passes through the terminal insertion hole, is bolted to the power supply side circuit board. Electrical junction box. [Effects of the Invention]

[0009] According to the electrical junction box of the present invention, the rescue terminal mounting section can be made compact, while improving the workability of the wiring work in which the wires of the terminal-equipped electric wires electrically connected to the rescue terminals are housed inside the electrical junction box.

[0010] The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by referring to the attached drawings and reading through the embodiments for carrying out the invention described below (hereinafter referred to as "embodiments"). [Brief explanation of the drawing]

[0011] [Figure 1] Figure 1 is a perspective view of an electrical junction box according to the first embodiment of the present invention with its upper cover open. [Figure 2] Figure 2 is an exploded perspective view of the block in the electrical junction box shown in Figure 1 where the rescue terminal mounting section is located. [Figure 3] Figure 3 is a perspective view illustrating the procedure for attaching a wire with a terminal to the emergency terminal mounting section of the block shown in Figure 2. [Figure 4] Figure 4 is a longitudinal cross-sectional view illustrating the procedure for bolting the terminal-equipped wire shown in Figure 3 to the power supply side circuit board housed in the rescue terminal mounting section. [Figure 5] Figure 5 is a longitudinal cross-sectional view showing the terminal-equipped wire shown in Figure 4 bolted to the power supply side circuit board housed in the rescue terminal mounting section. [Figure 6] Figure 6 is a longitudinal cross-sectional view showing the terminal-equipped wire in the reference electrical junction box bolted to the power supply side circuit board, which is housed in the rescue terminal mounting section. [Figure 7]FIG. 7 is a longitudinal sectional view for explaining the accommodation state of the wire with terminals in the electrical connection box shown in FIG. 1. [Figure 8] FIG. 8 is a perspective view for explaining the procedure when connecting the clip of the booster cable to the rescue terminal of the rescue terminal mounting portion in the electrical connection box shown in FIG. 1. [Figure 9] FIG. 9 is a perspective view showing the power supply side circuit board according to the modified example. [Figure 10] FIG. 10 is a perspective view for explaining the procedure of attaching the wire with terminals to the rescue terminal mounting portion of the block provided with the power supply side circuit board according to the modified example shown in FIG. 9. [Figure 11] FIG. 11 is an enlarged perspective view of the main part for explaining the state where the terminal connection portion of the wire with terminals shown in FIG. 10 is inserted into the terminal insertion hole of the rescue terminal. [Figure 12] FIG. 12 is a perspective view of the block provided with the rescue terminal mounting portion in the electrical connection box according to the second embodiment of the present invention. [Figure 13] FIG. 13 is an exploded perspective view of the block shown in FIG. 12. [Figure 14] FIG. 14 is an enlarged perspective view of the main part for explaining the procedure of fitting the nut into the nut accommodation portion of the rescue terminal mounting portion shown in FIG. 13. [Figure 15] FIG. 15 is an enlarged perspective view of the main part of the state where the nut is accommodated in the nut accommodation portion of the rescue terminal mounting portion shown in FIG. 14. [Figure 16] FIG. 16 is a perspective view of the main part for explaining the procedure of attaching the wire with terminals to the rescue terminal mounting portion of the block shown in FIG. 15. [Figure 17] FIG. 17 is a longitudinal sectional view for explaining the procedure of bolt - fastening the wire with terminals shown in FIG. 16 to the power supply side circuit board accommodated in the rescue terminal mounting portion. [Figure 18] FIG. 16 is an enlarged cross - sectional perspective view of the main part of the state where the wire with terminals shown in FIG. 17 is bolt - fastened to the power supply side circuit board accommodated in the rescue terminal mounting portion.

Embodiments for Carrying Out the Invention

[0012] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Figure 1 is a perspective view of the electrical junction box 10 according to the first embodiment of the present invention with the upper cover 14 open. Figure 2 is an exploded perspective view of the block 20 in the electrical junction box 10 shown in Figure 1, which is provided with the rescue terminal mounting portion 30.

[0013] In this specification, the front-to-back, up-and-down, and left-to-right directions of the electrical junction box 10 shall follow the directions of the arrows shown in Figures 1 and 2. These directions are defined solely for explanatory purposes and do not necessarily correspond to the front-to-back, left-to-right, and up-and-down directions of the vehicle when the electrical junction box 10 is mounted on the vehicle.

[0014] For example, in the power transmission lines of a vehicle, a "fuse block" is used, which has a large number of fuses that can be inserted and removed in order to protect the electrical circuits of various electronic devices. A fuse block may also contain relays, and is therefore also called a "relay box" or "junction block." In this specification, these fuse blocks, relay boxes, and junction blocks are collectively referred to as electrical connection boxes 10.

[0015] As shown in Figure 1, the electrical junction box 10 according to this embodiment has a housing composed of a frame body 12 that forms the outer shell, a lower cover 16 that covers the lower opening of the frame body 12, and an upper cover 14 that covers the upper opening of the frame body 12. These frame body 12, lower cover 16, and upper cover 14 are molded bodies made of insulating resin.

[0016] For example, the top surface of the frame body 12 is provided with multiple block mounting sections where blocks 20, 21 for mounting electronic components such as relays, fuses, fusible links, and harness connection sockets are attached. Blocks 20, 21 are then housed in each block mounting section from below.

[0017] The block 20 according to this first embodiment is made of an insulating synthetic resin. As shown in Figure 2, the block 20 is integrally provided with an electronic component mounting section 25, a rescue terminal mounting section 30, a power supply side circuit board 50, a nut housing section 31 (see Figure 4), a cover mounting section 32 to which a resin cover 40 can be attached, and a locking section 26 for locking to the frame body 12.

[0018] The electronic component mounting section 25 opens on the upper surface of the block 20 and has a plurality of terminal housing sections 22 for accommodating the terminals of electronic components, and a connector mounting section 24. These terminal housing sections 22 accommodate not only the terminals themselves, but also wires with terminals (not shown) that are electrically connected to the terminals.

[0019] The rescue terminal mounting section 30 has a plate-shaped upright section 38 that rises from the upper surface of the block 20. On one side of the upright section 38 (the left side in Figure 2), the rescue terminal 54, which will be described later, is superimposed in the thickness direction of the plate, so that the rescue terminal 54 is exposed on one side of the upright section 38.

[0020] As shown in Figure 2, the power supply side circuit board 50 according to this first embodiment is composed of a pair of busbars 51 and 61 made of highly conductive metal plates such as copper. These pairs of busbars 51 and 61 are bolted together and electrically connected as a single unit. The power supply side circuit board of the present invention may be composed of three or more busbars, or it may be composed of one busbar.

[0021] The busbar 51 has multiple pairs of tuning fork-shaped clamping pieces 53 formed along the extended portion that extends to the left from the side edge of the busbar body 52 toward the block 20. The busbar 51 is electrically connected to the terminal portion of an electronic component inserted between the pairs of clamping pieces 53.

[0022] A rescue terminal 54 is provided on a portion of the protruding part of the power supply side circuit board 50 that protrudes above the busbar body 52. Furthermore, the base of the rescue terminal 54 is provided with a terminal insertion hole 56 through which the terminal connection portion 82a of the terminal-equipped electric wire 80, which will be described later, is inserted. The terminal insertion hole 56 is a rectangular opening that is slightly larger than the cross-sectional shape of the terminal connection portion 82a.

[0023] Furthermore, a bead portion 55 is provided at the tip of the rescue terminal 54, protruding to the left in the direction of the plate thickness (left in Figure 2), which restricts the upward movement of the clip 102 of the booster cable 100.

[0024] The busbar 61 has multiple tab terminals 63 that are upright in a plate shape along the extended portion that extends from the side edge of the busbar body 62 toward the left of the block 20. The tab terminals 63 of the busbar 61 are electrically connected to the terminals of the connector attached to the connector mounting portion 24. A fastening piece 64 is provided horizontally at the tip of a projection that protrudes upward from the busbar body 62, and the terminal connection portion 82a of the connecting terminal 82 is fastened to it. The fastening piece 64 has a bolt insertion hole 66.

[0025] As shown in Figure 4, a square nut (nut) 70 is housed in a nut housing 31 located on the left side of the rescue terminal mounting section 30. This nut is used to fasten the terminal connection section 82a of the connection terminal 82 to the fastening piece 64 of the busbar 61 with a bolt 78. The square nut 70 is non-rotatably housed in a resin nut block 72.

[0026] As shown in Figure 2, the resin cover 40 is made of an insulating synthetic resin and has a cover body 41 that covers the upright portion 38 of the rescue terminal mounting portion 30 and the rescue terminal 54, a shaft portion 42 provided at one end of the cover body 41 and a locking projection 44 provided at the other end of the cover body 41.

[0027] As shown in Figure 2, the cover mounting portion 32 has a shaft mounting portion 34 for rotatably mounting the shaft portion 42 of the resin cover 40, and a locking frame portion 36 for locking the locking projection 44 of the resin cover 40. When the rescue terminal 54 is not in use, the resin cover 40 covers the upright portion 38 and the rescue terminal 54 in the closed position shown in Figure 1, and when the rescue terminal 54 is not in use, it rotates around the shaft portion 42 to expose the upright portion 38 and the rescue terminal 54 (see Figure 8).

[0028] As shown in Figure 2, the wire with terminals 80 consists of a wire 90 and a connection terminal 82 connected to the end of the wire 90. The connection terminal 82 has an L-shaped terminal connection portion 82a and a wire connection portion 82b. The terminal connection portion 82a has a bolt insertion hole 86 through which a bolt 78 is inserted. The wire connection portion 82b has the exposed core wire 92 of the wire 90 crimped and fixed to it.

[0029] Next, we will explain the assembly procedure for block 20. First, the busbar 61 of the power supply circuit board 50 is inserted into the block 20 from below and held in place in a predetermined position. Then, the fastening piece 64 of the busbar 61 is positioned at the upper end of the nut housing portion 31.

[0030] Next, the busbar 51 of the power supply circuit board 50 is inserted into the block 20 from below and housed in a predetermined position. Then, the rescue terminal 54 of the busbar 51 is positioned so as to overlap one side of the upright portion 38. Finally, the busbar 51 and the busbar 61 are bolted together and electrically connected.

[0031] Next, the nut block 72, which houses the square nut 70, is inserted into the nut housing section 31 from below the block 20. Once inserted into the nut housing section 31, the nut block 72 abuts against the fastening piece 64 of the bus bar 61, restricting its upward movement, and is held in place by the flexible locking piece 35 to prevent it from coming loose (see Figure 4).

[0032] Next, as shown in Figure 3, the terminal-equipped wire 80 is attached to the right side (side) of the block 20 by inserting the terminal connection portion 82a of the connection terminal 82 into the terminal insertion hole 56 of the busbar 51 on the power supply side circuit board 50.

[0033] As shown in Figure 4, the terminal connection portion 82a of the connecting terminal 82, which passes through the terminal insertion hole 56 of the busbar 51, is positioned on the fastening piece 64 of the busbar 61. Thus, the screw hole of the square nut 70, the bolt insertion hole 66 of the fastening piece 64, and the bolt insertion hole 86 of the terminal connection portion 82a are aligned in the same straight line. Then, the fastening piece 64 and the terminal connection portion 82a are bolted to the block 20 by a bolt 78 that is screwed into the square nut 70 from above the block 20.

[0034] As shown in Figure 5, the wire 80 with a terminal, whose connection terminal 82 is bolted to the block 20, has the wire 90 leading downward along the right side of the block 20. Then, the resin cover 40 is attached to the cover mounting section 32, and the assembly of the block 20 is completed.

[0035] As described above, in the electrical junction box 10 of this first embodiment, a rescue terminal 54 is integrally provided, protruding above the busbar body 52 of the busbar 51 exposed on the right side of the block 20. Furthermore, the wire with a terminal 80 attached along the busbar body 52 has a terminal connection portion 82a of the connection terminal 82 which is formed in an L-shape in cross-section, and the terminal connection portion 82a passes through the terminal insertion hole 56 provided at the base of the rescue terminal 54, and is bolted to the fastening piece 64 of the busbar 61 on the power supply side circuit board 50.Therefore, the length of the connection terminal 82 of the wire with a terminal, from the lower end of the wire connection portion 82b to the upper end of the terminal connection portion 82a, is L1.

[0036] Figure 6 is a longitudinal cross-sectional view showing the terminal-equipped electric wire 80A in the reference electrical junction box bolted to the power supply side circuit board 500 housed in the rescue terminal mounting section 230. As shown in Figure 6, the rescue terminal mounting portion 230 of the reference electrical junction box block 200 is fastened by a bolt 78 through which the connection terminal 82A of the terminal-equipped wire 80A is inserted into a bolt insertion hole 59 of the power supply side circuit board 500, which is exposed on the side of the block 200. A rescue terminal 54 is integrally provided at the upper end of this power supply side circuit board 500.

[0037] Here, the connection terminal 82A of the wire with terminals 80A is a so-called LA terminal, and the terminal connection portion 85 is formed in a flat plate shape. Therefore, the length L2 from the lower end of the wire connection portion 82b to the upper end of the terminal connection portion 85 of the connection terminal 82A of the wire with terminals 80A is longer than the length L1 of the connection terminal 82.

[0038] Accordingly, as shown in Figure 7, according to the electrical junction box 10 of this first embodiment, the length L1 from the lower end of the wire connection portion 82b to the upper end of the terminal connection portion 82a of the wire with terminal 80 can be shortened, and when the block 20 is attached to the frame body 12, the position of the wire connection portion 82b of the connection terminal 82 inside the electrical junction box 10 becomes higher. Therefore, the wire 90 extending from the wire connection portion 82b does not need to be curved with an excessively small radius of curvature to avoid interfering with the lower cover 16, and it becomes easier to house it inside the electrical junction box 10.

[0039] Therefore, while making the rescue terminal mounting section 30 of block 20 compact, the workability of the wiring operation, in which the wire 90 of the terminal-equipped wire 80 that is electrically connected to the rescue terminal 54 is housed inside the electrical connection box 10, can be improved.

[0040] As shown in Figure 8, in the electrical junction box 10 with the upper cover 14 removed, the rescue terminal 54 is exposed to the outside by rotating the resin cover 40. The rescue terminal 54 is electrically connected to the terminal-equipped wire 80, and the wire 90 of the terminal-equipped wire 80 is connected to the vehicle's battery (not shown). Therefore, for example, by connecting the clip 102 of a booster cable 100 connected to another external power source (not shown) to the rescue terminal 54 provided in the electrical junction box 10, it is possible to charge the vehicle's battery.

[0041] Figure 9 is a perspective view showing the busbar 51A of the power supply side circuit board according to a modified example. The busbar 51A is provided with a plurality of guide protrusions 58 (three in this embodiment) on the opening edge of the terminal insertion hole 56A located at the base of the rescue terminal 54, which guide the insertion of the terminal connection portion 82a of the connection terminal 82. The guide protrusions 58 are formed by cutting and bending the upper edge and left and right edges of the terminal insertion hole 56A, respectively. In this embodiment, the guide protrusions 58 are formed by cutting and bending them perpendicular to the busbar body 52A, but the guide protrusions 58 may also be formed by cutting and bending them into a guiding shape with the tip inclined outward.

[0042] Then, as shown in Figure 10, the terminal-equipped wire 80 is attached to the right side of the block 20 by inserting the terminal connection portion 82a of the connecting terminal 82 through the terminal insertion hole 56A of the busbar 51A. At this time, as shown in Figure 11, the terminal connection portion 82a of the connecting terminal 82 is guided by the guide projection 58 and inserted through the terminal insertion hole 56A, so that the tilt of the terminal connection portion 82a is suppressed and the workability of the insertion work is improved. Furthermore, the connecting terminal 82, through which the terminal connection portion 82a is inserted into the terminal insertion hole 56A, is prevented from rotating by the guide projection 58. This prevents it from rotating together when fastening with the bolt 78, thereby improving the workability of the fastening process.

[0043] Figure 12 is a perspective view of block 20A, which is provided with a rescue terminal mounting portion 30A, in an electrical junction box according to a second embodiment of the present invention. Figure 13 is an exploded perspective view of block 20A shown in Figure 12.

[0044] As shown in Figure 14, the rescue terminal mounting section 30A is provided with a nut housing section 37 for housing a square nut 70 for bolting the terminal connection section 82a to the fastening piece 64 of the busbar 61 on the power supply side circuit board 50A. The nut housing portion 37 has a pair of guide grooves 37a and a top wall 39 that extend in a direction parallel to the insertion direction of the terminal connection portion 82a, and is configured so that the square nut 70 is fitted into the nut housing portion 37 from a direction parallel to the insertion direction of the terminal connection portion 82a.

[0045] As shown in Figure 15, the square nut 70 fitted into the nut housing 37 is held by a pair of guide grooves 37a, restricting its vertical movement and rotation. The square nut 70 is fitted into the nut housing 37 which has a top wall 39, so it is not exposed to the outside.

[0046] Then, when the busbars 61 and 51A of the power supply circuit board 50 are inserted into the block 20A from below and housed in their predetermined positions, the rescue terminal 54 of the busbar 51A is positioned to overlap one side of the upright portion 38. The fastening piece 64 of the busbar 61 abuts against the square nut 70 fitted into the nut housing portion 37. The busbars 51A and 61 are then bolted together and electrically connected.

[0047] Next, as shown in Figure 16, the terminal-equipped wire 80 is attached to the right side of block 20A by inserting the terminal connection portion 82a of the connection terminal 82 through the terminal insertion hole 56A of the busbar 51A on the power supply side circuit board 50A.

[0048] As shown in Figure 17, the terminal connection portion 82a of the connecting terminal 82, which passes through the terminal insertion hole 56A of the busbar 51A, is positioned below the fastening piece 64 of the busbar 61. Thus, the screw hole of the square nut 70, the bolt insertion hole 66 of the fastening piece 64, and the bolt insertion hole 86 of the terminal connection portion 82a are aligned in the same line. Then, the fastening piece 64 and the terminal connection portion 82a are bolted to the block 20A by a bolt 78 that is screwed into the square nut 70 from below the block 20A.

[0049] As shown in Figure 17, the wire 80 with a terminal, whose connection terminal 82 is bolted to block 20A, has the wire 90 led downward along the right side of block 20. As described above, in the block 20A of the electrical junction box of this second embodiment, a rescue terminal 54 is integrally provided protruding above the busbar body 52A of the busbar 51A exposed on the right side of the block 20A. Furthermore, the terminal-equipped wire 80 attached along the busbar body 52A has a terminal connection portion 82a of the connection terminal 82, which is formed in an L-shape in cross-section, pass through the terminal insertion hole 56A provided at the base of the rescue terminal 54, and is bolted to the fastening piece 64 of the busbar 61 on the power supply side circuit board 50A.

[0050] Therefore, the connection terminal 82 of the wire with terminals 80 can have its length L1 from the lower end of the wire connection portion 82b to the upper end of the terminal connection portion 82a shortened, similar to the electrical connection box 10 of the first embodiment.

[0051] Furthermore, according to the block 20A of the electrical connection box of this second embodiment, as shown in Figure 18, the rescue terminal mounting portion 30A is provided with a nut housing portion 37 for housing a square nut 70 for bolting the terminal connection portion 82a of the connection terminal 82 to the fastening piece 64 of the busbar 61 on the power supply side circuit board 50A. The square nut 70 is fitted into the nut housing portion 37 from a direction parallel to the insertion direction of the terminal connection portion 82a of the connection terminal 82, and a bolt 78 that is screwed into the square nut 70 is fastened from below the nut housing portion 37.

[0052] Therefore, a top wall 39 can be provided in the nut housing section 37, and the square nut 70 housed in the nut housing section 37 is not exposed to the outside. Consequently, there is no need to provide an insulating cover as a separate part to prevent electric shock.

[0053] Furthermore, the nut housing portion 37 has a pair of guide grooves 37a extending in a direction parallel to the insertion direction of the terminal connection portion 82a, so that the square nut 70 is fitted into the nut housing portion 37 from a direction parallel to the insertion direction of the terminal connection portion 82a of the connecting terminal 82. Therefore, the square nut 70 housed in the nut housing 37 is held in a pair of guide grooves 37a, restricting its vertical movement and rotation. Consequently, there is no need to form a flexible locking piece 35 on the block 20A, as shown in Figure 5, to prevent the square nut 70 from coming loose.

[0054] Therefore, similar to the electrical junction box 10 of the first embodiment described above, the rescue terminal mounting portion 30A of block 20A can be made more compact, while improving the workability of the wiring work in which the wire 90 of the terminal-equipped wire 80 that is electrically connected to the rescue terminal 54 is housed inside the electrical junction box.

[0055] Furthermore, the present invention is not limited to the embodiments described above, and can be modified, improved, etc., as appropriate. In addition, the material, shape, dimensions, number, placement, etc. of each component in the embodiments described above are arbitrary and not limited, as long as they can achieve the present invention.

[0056] Here, the features of the electrical junction box relating to the embodiment of the present invention described above are briefly summarized and listed below. [1] A rescue terminal (54) is clamped to the clip (102) of the booster cable (100), A rescue terminal mounting section (30, 30A) to which the rescue terminal (54) can be attached, The block (20, 20A) on which the rescue terminal mounting portion (30, 30A) is provided, The power supply side circuit board (50, 50A) housed in the rescue terminal mounting section (30, 30A), A wire (80) with a terminal (82) having an L-shaped terminal connection part (82a) in cross-section, An electrical junction box (10) comprising a frame body (12) to which the aforementioned blocks (20, 20A) are assembled, The rescue terminal (54) is provided on a part of the protruding portion of the power supply side circuit board (50, 50A), The base of the rescue terminal (54) is provided with terminal insertion holes (56, 56A) through which the terminal connection portion (82a) is inserted. The terminal connection portion (82a), which passes through the terminal insertion holes (56, 56A), is bolted to the power supply side circuit board (50, 50A). Electrical junction box (10).

[0057] In the electrical junction box (10) with the configuration described in [1] above, a rescue terminal (54) is integrally provided, protruding above the power supply side circuit board (50, 50A) exposed on the side (right side) of the block (20, 20A). Furthermore, the wire with terminals (80) attached along the power supply side circuit board (50, 50A) has a terminal connection portion (82a) of the connection terminal (82) formed in an L-shape in cross-section that passes through a terminal insertion hole (56) provided at the base of the rescue terminal (54), and is bolted to the power supply side circuit board (50). Thus, the length (L1) of the connection terminal (82) of the wire with terminals (80), from the lower end of the wire connection portion (82b) to the upper end of the terminal connection portion (82a), can be shortened. Therefore, when the block (20) is attached to the frame body (12), the position of the wire connection part (82b) of the connection terminal (82) becomes higher, so that the wire (90) extending from the wire connection part (82b) does not interfere with the lower cover (16), etc., even without bending it with an excessively small radius of curvature, and the wire with terminal (80) can be easily housed inside the electrical connection box (10).

[0058] [2] The opening edge of the terminal insertion hole (56A) is provided with a guide projection (58) for inserting the terminal connection portion (82a). The electrical junction box (10) described above [1].

[0059] According to the electrical junction box (10) with the configuration described in [2] above, the wire with terminals (80) is attached to the side (right side) of the block (20) by inserting the terminal connection portion (82a) of the connection terminal (82) into the terminal insertion hole (56A) of the power supply side circuit board (50A). At this time, the terminal connection portion (82a) of the connection terminal (82) is guided by the guide projection (58) and inserted into the terminal insertion hole (56A), so that the tilt of the terminal connection portion (82a) is suppressed and the workability of the insertion work is improved.

[0060] [3] The rescue terminal mounting portion (30A) is provided with a nut housing portion (37) for housing a nut (square nut 70) for bolting the terminal connection portion (82a) to the power supply side circuit board (50A), The nut (square nut 70) is fitted into the nut housing (37) from a direction parallel to the insertion direction of the terminal connection portion (82a), The bolt (78) that is screwed into the nut (square nut 70) is fastened from below the nut housing (37). The electrical junction box (10) as described in [1] or [2] above.

[0061] According to the electrical junction box (10) with the configuration described in [3] above, a top wall (39) can be provided for the nut housing section (37), and the square nuts (70) housed in the nut housing section (37) are not exposed to the outside. Therefore, there is no need to provide an insulating cover as a separate part to prevent electric shock. [Explanation of Symbols]

[0062] 10… Electrical junction box 12…Frame body 20…blocks 30...Rescue terminal mounting section 50...Power supply side circuit board 54…Relief terminal 56…Terminal insertion hole 82…Connection terminals 82a...Terminal connection section 100... Booster cables 102... Clip

Claims

1. The rescue terminal is clamped onto the booster cable clip, A rescue terminal mounting section to which the rescue terminal can be attached, The block on which the rescue terminal mounting portion is provided, The power supply side circuit board housed in the rescue terminal mounting section, A wire with a terminal having an L-shaped cross-section terminal connection part, An electrical junction box comprising a frame body to which the aforementioned block is assembled, The rescue terminal is provided on a portion of the protrusion on the power supply side circuit board. The base of the rescue terminal is provided with a terminal insertion hole through which the terminal connection portion is inserted. The terminal connection portion, which passes through the terminal insertion hole, is bolted to the power supply side circuit board. Electrical junction box.

2. The opening edge of the terminal insertion hole is provided with a guide projection for guiding the insertion of the terminal connection portion. The electrical junction box according to claim 1.

3. The rescue terminal mounting portion is provided with a nut housing portion for housing a nut for bolting the terminal connection portion to the power supply side circuit board. The nut is fitted into the nut housing from a direction parallel to the insertion direction of the terminal connection portion. The bolt that is screwed into the nut is fastened from below the nut housing. The electrical junction box according to claim 1 or 2.

Images